file, strerror(-ret));
#ifdef CONFIG_MARU
- const char _msg[] = "Fail to load disk file. \
- Check if the file is corrupted or missing from the following path.\n\n";
+ const char _msg[] = "Fail to load disk file. Check if the file is corrupted or missing from the following path.\n\n";
char* current_path = (char *)g_get_current_dir();
int len = strlen(_msg) + strlen(current_path) + strlen(file) + 2;
cd $SRCDIR/tizen/
if test -e "Makefile"
then
- ./qemu_configure.sh
+ ./qemu_configure.sh "$BUILD_CFLAGS $BUILD_LDFLAGS"
make clean
fi
rm -rf $SRCDIR/*.zip
PATH=$PATH:$ROOTDIR/bin:$ROOTDIR/apache-ant-1.8.3/bin
export PATH
+ export PKG_CONFIG_PATH=$ROOTDIR/lib/pkgconfig
BUILD_CFLAGS=--extra-cflags=-I$ROOTDIR/include
BUILD_LDFLAGS=--extra-ldflags=-L$ROOTDIR/lib
}
Package: emulator
-Version: 1.2.90
+Version: 1.2.92
OS: linux
Build-host-os: linux
Maintainer: Yeong-Kyoon Lee<yeongkyoon.lee@samsung.com>
Description: Tizen Emulator
Package: emulator
-Version: 1.2.90
+Version: 1.2.92
OS: windows
Build-host-os: windows
Maintainer: Yeong-Kyoon Lee<yeongkyoon.lee@samsung.com>
-Build-dependency: SDL-1.2.14 [ windows ], jpeg-8b [ windows ], libpng-1.4.5 [ windows ], apache-ant-1.8.3-bin [ windows ]
+Build-dependency: SDL-1.2.14 [ windows ], jpeg-8b [ windows ], libpng-1.4.5 [ windows ], apache-ant-1.8.3-bin [ windows ], gtk-bundle_2.16.6 [ windows ], directx-dev [ windows ]
Install-dependency: emulator-kernel [ windows ], emulator-manager [ windows ], emulator-dll [ windows ]
Source: emulator
Description: Tizen Emulator
Entries are sorted chronologically from oldest to youngest within each release,
releases are sorted from youngest to oldest.
+version 0.7.2:
+
+- check buffer and input values in various parts of the code:
+ H.264, VC-1, APE, FLV, Indeo 2, XAN, Ogg, MXF, wavpack, ffv1, MOV,
+ cavs (OCERT-2011-002, CVE-2011-3362), Smacker, cpu detection, lavf,
+ Matroska (CVE-2011-3504), RV10, RV30/RV40
+- memory leaks: vf_scale, eval
+
+- ARM: workaround for bug in GNU assembler
+- AVOptions: fix av_set_string3() doxy to match reality. (Bug #28)
+- Reintroduce AVInputStream.nb_streams to avoid crashes
+- aac: Only output configure if audio was found
+- aac: Remove some suspicious illegal memcpy()s from LTP
+- aacps: skip some memcpy() if src and dst would be equal
+- adts: fix PCE copying
+- alsa: fallback to buffer_size/4 for period_size
+- alsa: limit buffer_size to 32768 frames
+- cljr, indeo2: init_get_bits size in bits instead of bytes
+- configure: add missing CFLAGS to fix building on the HURD
+- dca: set AVCodecContext frame_size for DTS audio
+- fate: allow testing with libavfilter disabled
+- gxf: fix 25 fps DV material in GXF being misdetected as 50 fps
+- h264: correct implicit weight table computation for long ref pics
+- h264: correct the check for invalid long term frame index in MMCO decode
+- h264: fix PCM intra-coded blocks in monochrome case
+- jpegdec: actually search for and parse RSTn
+- lavc: fix type for thread_type option
+- lavf: fix context pointer in av_open_input_stream when avformat_open_input fails
+- lavf: do not set codec_tag for rawvideo
+- libx264: do not set pic quality if no frame is output
+- movenc: create an alternate group for each media type
+- mpegts: fix Continuity Counter error detection
+- mxfenc: fix ignored drop flag in binary timecode representation
+- fix crashes in 32-bit PIC builds (cf e.g. http://bugs.debian.org/639948)
+- ppc64: fix cast related random failures
+- riff: Add mpgv MPEG-2 fourcc
+- swscale: don't use planar output functions to write to NV12/21
+- vc1: properly zero coded_block[] edges on new slice entry
+- vp3/theora: flush after seek
+
+- various bug other fixes
+
version 0.7.1:
- behavioral fix in av_open_input_stream()
- Licensing clarification for LGPL'ed vf_gradfun
- bugfixes while seeking in multithreaded decoding
+- support newer versions of OpenCV
+- ffmpeg: fix operation with --disable-avfilter
+- fixed integer underflow in matroska decoder
version 0.7:
- E-AC-3 audio encoder
- ac3enc: add channel coupling support
-- floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
-- H264/MPEG frame-level multi-threading
-- All av_metadata_* functions renamed to av_dict_* and moved to libavutil
+- floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
+- H.264/MPEG frame-level multithreading
+- av_metadata_* functions renamed to av_dict_* and moved to libavutil
- 4:4:4 H.264 decoding support
- 10-bit H.264 optimizations for x86
-- Bump libswscale for recently reported ABI break
+- bump libswscale for recently reported ABI break
version 0.7_beta2:
-- VP8 frame-multithreading
+- VP8 frame-level multithreading
- NEON optimizations for VP8
-- Lots of deprecated API cruft removed
-- fft and imdct optimizations for AVX (Sandy Bridge) processors
+- removed a lot of deprecated API cruft
+- FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
- DPX image encoder
- SMPTE 302M AES3 audio decoder
-- Remove support for quitting ffmpeg with 'q', ctrl+c should be used.
+- ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
- 9bit and 10bit per sample support in the H.264 decoder
- demuxer for receiving raw rtp:// URLs without an SDP description
- single stream LATM/LOAS decoder
- setpts filter added
-- Win64 support for optimized asm functions
+- Win64 support for optimized x86 assembly functions
- MJPEG/AVI1 to JPEG/JFIF bitstream filter
- ASS subtitle encoder and decoder
-- IEC 61937 encapsulation for E-AC3, TrueHD, DTS-HD (for HDMI passthrough)
+- IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
- overlay filter added
- rename aspect filter to setdar, and pixelaspect to setsar
- IEC 61937 demuxer
FATE = $(FATE_ACODEC) \
$(FATE_VCODEC) \
$(FATE_LAVF) \
- $(FATE_LAVFI) \
$(FATE_SEEK) \
+FATE-$(CONFIG_AVFILTER) += $(FATE_LAVFI)
+
+FATE += $(FATE-yes)
+
$(filter-out %-aref,$(FATE_ACODEC)): $(AREF)
$(filter-out %-vref,$(FATE_VCODEC)): $(VREF)
$(FATE_LAVF): $(REFS)
fate-seek: $(FATE_SEEK)
ifdef SAMPLES
-FATE += $(FATE_TESTS)
+FATE += $(FATE_TESTS) $(FATE_TESTS-yes)
fate-rsync:
rsync -vaLW rsync://fate-suite.libav.org/fate-suite/ $(SAMPLES)
else
dep=${v%=*}
tests=${v#*=}
for name in ${tests}; do
- eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
+ append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
done
done
}
eval ${1}_le_test_deps="!bigendian"
}
+mxf_d10_test_deps="avfilter"
+seek_lavf_mxf_d10_test_deps="mxf_d10_test"
+
test_deps _encoder _decoder \
adpcm_g726=g726 \
adpcm_ima_qt \
mmf \
mov \
pcm_mulaw=mulaw \
- mxf \
+ mxf="mxf mxf_d10" \
nut \
ogg \
rawvideo=pixfmt \
add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
;;
gnu)
+ add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
;;
qnx)
add_cppflags -D_QNX_SOURCE
doc
libavcodec
libavcodec/$arch
+ libavcodec/mlib
libavdevice
libavfilter
libavfilter/$arch
libpostproc
libswscale
libswscale/$arch
+ libswscale/mlib
tests
tools
"
accept patches to remove their use unless they absolutely do not impair
clarity and performance.
-All code must compile with GCC 2.95 and GCC 3.3. Currently, Libav also
-compiles with several other compilers, such as the Compaq ccc compiler
-or Sun Studio 9, and we would like to keep it that way unless it would
-be exceedingly involved. To ensure compatibility, please do not use any
+All code must compile with recent versions of GCC and a number of other
+currently supported compilers. To ensure compatibility, please do not use
additional C99 features or GCC extensions. Especially watch out for:
@itemize @bullet
@item
int eof_reached; /* true if eof reached */
int ist_index; /* index of first stream in ist_table */
int buffer_size; /* current total buffer size */
+ int nb_streams; /* nb streams we are aware of */
} AVInputFile;
static AVInputStream *input_streams = NULL;
int si = stream_maps[i].stream_index;
if (fi < 0 || fi > nb_input_files - 1 ||
- si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
+ si < 0 || si > input_files[fi].nb_streams - 1) {
fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
ret = AVERROR(EINVAL);
goto fail;
fi = stream_maps[i].sync_file_index;
si = stream_maps[i].sync_stream_index;
if (fi < 0 || fi > nb_input_files - 1 ||
- si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
+ si < 0 || si > input_files[fi].nb_streams - 1) {
fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
ret = AVERROR(EINVAL);
goto fail;
fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
ffmpeg_exit(1);
}
+
+ if (!codec->width || !codec->height) {
+ codec->width = icodec->width;
+ codec->height = icodec->height;
+ }
+
ost->video_resample = codec->width != icodec->width ||
codec->height != icodec->height ||
codec->pix_fmt != icodec->pix_fmt;
#endif
codec->bits_per_raw_sample= 0;
}
- if (!codec->width || !codec->height) {
- codec->width = icodec->width;
- codec->height = icodec->height;
- }
+
ost->resample_height = icodec->height;
ost->resample_width = icodec->width;
ost->resample_pix_fmt= icodec->pix_fmt;
}
/* the following test is needed in case new streams appear
dynamically in stream : we ignore them */
- if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
+ if (pkt.stream_index >= input_files[file_index].nb_streams)
goto discard_packet;
ist_index = input_files[file_index].ist_index + pkt.stream_index;
ist = &input_streams[ist_index];
input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
input_files[nb_input_files - 1].ctx = ic;
input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
+ input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
frame_rate = (AVRational){0, 0};
frame_pix_fmt = PIX_FMT_NONE;
--- /dev/null
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVCODEC_H
+#define AVCODEC_AVCODEC_H
+
+/**
+ * @file
+ * external API header
+ */
+
+#include <errno.h>
+#include "libavutil/samplefmt.h"
+#include "libavutil/avutil.h"
+#include "libavutil/cpu.h"
+
+#include "libavcodec/version.h"
+
+/**
+ * Identify the syntax and semantics of the bitstream.
+ * The principle is roughly:
+ * Two decoders with the same ID can decode the same streams.
+ * Two encoders with the same ID can encode compatible streams.
+ * There may be slight deviations from the principle due to implementation
+ * details.
+ *
+ * If you add a codec ID to this list, add it so that
+ * 1. no value of a existing codec ID changes (that would break ABI),
+ * 2. it is as close as possible to similar codecs.
+ */
+enum CodecID {
+ CODEC_ID_NONE,
+
+ /* video codecs */
+ CODEC_ID_MPEG1VIDEO,
+ CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
+ CODEC_ID_MPEG2VIDEO_XVMC,
+ CODEC_ID_H261,
+ CODEC_ID_H263,
+ CODEC_ID_RV10,
+ CODEC_ID_RV20,
+ CODEC_ID_MJPEG,
+ CODEC_ID_MJPEGB,
+ CODEC_ID_LJPEG,
+ CODEC_ID_SP5X,
+ CODEC_ID_JPEGLS,
+ CODEC_ID_MPEG4,
+ CODEC_ID_RAWVIDEO,
+ CODEC_ID_MSMPEG4V1,
+ CODEC_ID_MSMPEG4V2,
+ CODEC_ID_MSMPEG4V3,
+ CODEC_ID_WMV1,
+ CODEC_ID_WMV2,
+ CODEC_ID_H263P,
+ CODEC_ID_H263I,
+ CODEC_ID_FLV1,
+ CODEC_ID_SVQ1,
+ CODEC_ID_SVQ3,
+ CODEC_ID_DVVIDEO,
+ CODEC_ID_HUFFYUV,
+ CODEC_ID_CYUV,
+ CODEC_ID_H264,
+ CODEC_ID_INDEO3,
+ CODEC_ID_VP3,
+ CODEC_ID_THEORA,
+ CODEC_ID_ASV1,
+ CODEC_ID_ASV2,
+ CODEC_ID_FFV1,
+ CODEC_ID_4XM,
+ CODEC_ID_VCR1,
+ CODEC_ID_CLJR,
+ CODEC_ID_MDEC,
+ CODEC_ID_ROQ,
+ CODEC_ID_INTERPLAY_VIDEO,
+ CODEC_ID_XAN_WC3,
+ CODEC_ID_XAN_WC4,
+ CODEC_ID_RPZA,
+ CODEC_ID_CINEPAK,
+ CODEC_ID_WS_VQA,
+ CODEC_ID_MSRLE,
+ CODEC_ID_MSVIDEO1,
+ CODEC_ID_IDCIN,
+ CODEC_ID_8BPS,
+ CODEC_ID_SMC,
+ CODEC_ID_FLIC,
+ CODEC_ID_TRUEMOTION1,
+ CODEC_ID_VMDVIDEO,
+ CODEC_ID_MSZH,
+ CODEC_ID_ZLIB,
+ CODEC_ID_QTRLE,
+ CODEC_ID_SNOW,
+ CODEC_ID_TSCC,
+ CODEC_ID_ULTI,
+ CODEC_ID_QDRAW,
+ CODEC_ID_VIXL,
+ CODEC_ID_QPEG,
+ CODEC_ID_PNG,
+ CODEC_ID_PPM,
+ CODEC_ID_PBM,
+ CODEC_ID_PGM,
+ CODEC_ID_PGMYUV,
+ CODEC_ID_PAM,
+ CODEC_ID_FFVHUFF,
+ CODEC_ID_RV30,
+ CODEC_ID_RV40,
+ CODEC_ID_VC1,
+ CODEC_ID_WMV3,
+ CODEC_ID_LOCO,
+ CODEC_ID_WNV1,
+ CODEC_ID_AASC,
+ CODEC_ID_INDEO2,
+ CODEC_ID_FRAPS,
+ CODEC_ID_TRUEMOTION2,
+ CODEC_ID_BMP,
+ CODEC_ID_CSCD,
+ CODEC_ID_MMVIDEO,
+ CODEC_ID_ZMBV,
+ CODEC_ID_AVS,
+ CODEC_ID_SMACKVIDEO,
+ CODEC_ID_NUV,
+ CODEC_ID_KMVC,
+ CODEC_ID_FLASHSV,
+ CODEC_ID_CAVS,
+ CODEC_ID_JPEG2000,
+ CODEC_ID_VMNC,
+ CODEC_ID_VP5,
+ CODEC_ID_VP6,
+ CODEC_ID_VP6F,
+ CODEC_ID_TARGA,
+ CODEC_ID_DSICINVIDEO,
+ CODEC_ID_TIERTEXSEQVIDEO,
+ CODEC_ID_TIFF,
+ CODEC_ID_GIF,
+ CODEC_ID_FFH264,
+ CODEC_ID_DXA,
+ CODEC_ID_DNXHD,
+ CODEC_ID_THP,
+ CODEC_ID_SGI,
+ CODEC_ID_C93,
+ CODEC_ID_BETHSOFTVID,
+ CODEC_ID_PTX,
+ CODEC_ID_TXD,
+ CODEC_ID_VP6A,
+ CODEC_ID_AMV,
+ CODEC_ID_VB,
+ CODEC_ID_PCX,
+ CODEC_ID_SUNRAST,
+ CODEC_ID_INDEO4,
+ CODEC_ID_INDEO5,
+ CODEC_ID_MIMIC,
+ CODEC_ID_RL2,
+ CODEC_ID_8SVX_EXP,
+ CODEC_ID_8SVX_FIB,
+ CODEC_ID_ESCAPE124,
+ CODEC_ID_DIRAC,
+ CODEC_ID_BFI,
+ CODEC_ID_CMV,
+ CODEC_ID_MOTIONPIXELS,
+ CODEC_ID_TGV,
+ CODEC_ID_TGQ,
+ CODEC_ID_TQI,
+ CODEC_ID_AURA,
+ CODEC_ID_AURA2,
+ CODEC_ID_V210X,
+ CODEC_ID_TMV,
+ CODEC_ID_V210,
+ CODEC_ID_DPX,
+ CODEC_ID_MAD,
+ CODEC_ID_FRWU,
+ CODEC_ID_FLASHSV2,
+ CODEC_ID_CDGRAPHICS,
+ CODEC_ID_R210,
+ CODEC_ID_ANM,
+ CODEC_ID_BINKVIDEO,
+ CODEC_ID_IFF_ILBM,
+ CODEC_ID_IFF_BYTERUN1,
+ CODEC_ID_KGV1,
+ CODEC_ID_YOP,
+ CODEC_ID_VP8,
+ CODEC_ID_PICTOR,
+ CODEC_ID_ANSI,
+ CODEC_ID_A64_MULTI,
+ CODEC_ID_A64_MULTI5,
+ CODEC_ID_R10K,
+ CODEC_ID_MXPEG,
+ CODEC_ID_LAGARITH,
+ CODEC_ID_PRORES,
+ CODEC_ID_JV,
+ CODEC_ID_DFA,
+
+ /* various PCM "codecs" */
+ CODEC_ID_PCM_S16LE= 0x10000,
+ CODEC_ID_PCM_S16BE,
+ CODEC_ID_PCM_U16LE,
+ CODEC_ID_PCM_U16BE,
+ CODEC_ID_PCM_S8,
+ CODEC_ID_PCM_U8,
+ CODEC_ID_PCM_MULAW,
+ CODEC_ID_PCM_ALAW,
+ CODEC_ID_PCM_S32LE,
+ CODEC_ID_PCM_S32BE,
+ CODEC_ID_PCM_U32LE,
+ CODEC_ID_PCM_U32BE,
+ CODEC_ID_PCM_S24LE,
+ CODEC_ID_PCM_S24BE,
+ CODEC_ID_PCM_U24LE,
+ CODEC_ID_PCM_U24BE,
+ CODEC_ID_PCM_S24DAUD,
+ CODEC_ID_PCM_ZORK,
+ CODEC_ID_PCM_S16LE_PLANAR,
+ CODEC_ID_PCM_DVD,
+ CODEC_ID_PCM_F32BE,
+ CODEC_ID_PCM_F32LE,
+ CODEC_ID_PCM_F64BE,
+ CODEC_ID_PCM_F64LE,
+ CODEC_ID_PCM_BLURAY,
+ CODEC_ID_PCM_LXF,
+ CODEC_ID_S302M,
+
+ /* various ADPCM codecs */
+ CODEC_ID_ADPCM_IMA_QT= 0x11000,
+ CODEC_ID_ADPCM_IMA_WAV,
+ CODEC_ID_ADPCM_IMA_DK3,
+ CODEC_ID_ADPCM_IMA_DK4,
+ CODEC_ID_ADPCM_IMA_WS,
+ CODEC_ID_ADPCM_IMA_SMJPEG,
+ CODEC_ID_ADPCM_MS,
+ CODEC_ID_ADPCM_4XM,
+ CODEC_ID_ADPCM_XA,
+ CODEC_ID_ADPCM_ADX,
+ CODEC_ID_ADPCM_EA,
+ CODEC_ID_ADPCM_G726,
+ CODEC_ID_ADPCM_CT,
+ CODEC_ID_ADPCM_SWF,
+ CODEC_ID_ADPCM_YAMAHA,
+ CODEC_ID_ADPCM_SBPRO_4,
+ CODEC_ID_ADPCM_SBPRO_3,
+ CODEC_ID_ADPCM_SBPRO_2,
+ CODEC_ID_ADPCM_THP,
+ CODEC_ID_ADPCM_IMA_AMV,
+ CODEC_ID_ADPCM_EA_R1,
+ CODEC_ID_ADPCM_EA_R3,
+ CODEC_ID_ADPCM_EA_R2,
+ CODEC_ID_ADPCM_IMA_EA_SEAD,
+ CODEC_ID_ADPCM_IMA_EA_EACS,
+ CODEC_ID_ADPCM_EA_XAS,
+ CODEC_ID_ADPCM_EA_MAXIS_XA,
+ CODEC_ID_ADPCM_IMA_ISS,
+ CODEC_ID_ADPCM_G722,
+
+ /* AMR */
+ CODEC_ID_AMR_NB= 0x12000,
+ CODEC_ID_AMR_WB,
+
+ /* RealAudio codecs*/
+ CODEC_ID_RA_144= 0x13000,
+ CODEC_ID_RA_288,
+
+ /* various DPCM codecs */
+ CODEC_ID_ROQ_DPCM= 0x14000,
+ CODEC_ID_INTERPLAY_DPCM,
+ CODEC_ID_XAN_DPCM,
+ CODEC_ID_SOL_DPCM,
+
+ /* audio codecs */
+ CODEC_ID_MP2= 0x15000,
+ CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
+ CODEC_ID_AAC,
+ CODEC_ID_AC3,
+ CODEC_ID_DTS,
+ CODEC_ID_VORBIS,
+ CODEC_ID_DVAUDIO,
+ CODEC_ID_WMAV1,
+ CODEC_ID_WMAV2,
+ CODEC_ID_MACE3,
+ CODEC_ID_MACE6,
+ CODEC_ID_VMDAUDIO,
+ CODEC_ID_SONIC,
+ CODEC_ID_SONIC_LS,
+ CODEC_ID_FLAC,
+ CODEC_ID_MP3ADU,
+ CODEC_ID_MP3ON4,
+ CODEC_ID_SHORTEN,
+ CODEC_ID_ALAC,
+ CODEC_ID_WESTWOOD_SND1,
+ CODEC_ID_GSM, ///< as in Berlin toast format
+ CODEC_ID_QDM2,
+ CODEC_ID_COOK,
+ CODEC_ID_TRUESPEECH,
+ CODEC_ID_TTA,
+ CODEC_ID_SMACKAUDIO,
+ CODEC_ID_QCELP,
+ CODEC_ID_WAVPACK,
+ CODEC_ID_DSICINAUDIO,
+ CODEC_ID_IMC,
+ CODEC_ID_MUSEPACK7,
+ CODEC_ID_MLP,
+ CODEC_ID_GSM_MS, /* as found in WAV */
+ CODEC_ID_ATRAC3,
+ CODEC_ID_VOXWARE,
+ CODEC_ID_APE,
+ CODEC_ID_NELLYMOSER,
+ CODEC_ID_MUSEPACK8,
+ CODEC_ID_SPEEX,
+ CODEC_ID_WMAVOICE,
+ CODEC_ID_WMAPRO,
+ CODEC_ID_WMALOSSLESS,
+ CODEC_ID_ATRAC3P,
+ CODEC_ID_EAC3,
+ CODEC_ID_SIPR,
+ CODEC_ID_MP1,
+ CODEC_ID_TWINVQ,
+ CODEC_ID_TRUEHD,
+ CODEC_ID_MP4ALS,
+ CODEC_ID_ATRAC1,
+ CODEC_ID_BINKAUDIO_RDFT,
+ CODEC_ID_BINKAUDIO_DCT,
+ CODEC_ID_AAC_LATM,
+ CODEC_ID_QDMC,
+
+ /* subtitle codecs */
+ CODEC_ID_DVD_SUBTITLE= 0x17000,
+ CODEC_ID_DVB_SUBTITLE,
+ CODEC_ID_TEXT, ///< raw UTF-8 text
+ CODEC_ID_XSUB,
+ CODEC_ID_SSA,
+ CODEC_ID_MOV_TEXT,
+ CODEC_ID_HDMV_PGS_SUBTITLE,
+ CODEC_ID_DVB_TELETEXT,
+ CODEC_ID_SRT,
+
+ /* other specific kind of codecs (generally used for attachments) */
+ CODEC_ID_TTF= 0x18000,
+
+ CODEC_ID_PROBE= 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
+
+ CODEC_ID_MPEG2TS= 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
+ * stream (only used by libavformat) */
+ CODEC_ID_FFMETADATA=0x21000, ///< Dummy codec for streams containing only metadata information.
+};
+
+#if FF_API_OLD_SAMPLE_FMT
+#define SampleFormat AVSampleFormat
+
+#define SAMPLE_FMT_NONE AV_SAMPLE_FMT_NONE
+#define SAMPLE_FMT_U8 AV_SAMPLE_FMT_U8
+#define SAMPLE_FMT_S16 AV_SAMPLE_FMT_S16
+#define SAMPLE_FMT_S32 AV_SAMPLE_FMT_S32
+#define SAMPLE_FMT_FLT AV_SAMPLE_FMT_FLT
+#define SAMPLE_FMT_DBL AV_SAMPLE_FMT_DBL
+#define SAMPLE_FMT_NB AV_SAMPLE_FMT_NB
+#endif
+
+#if FF_API_OLD_AUDIOCONVERT
+#include "libavutil/audioconvert.h"
+
+/* Audio channel masks */
+#define CH_FRONT_LEFT AV_CH_FRONT_LEFT
+#define CH_FRONT_RIGHT AV_CH_FRONT_RIGHT
+#define CH_FRONT_CENTER AV_CH_FRONT_CENTER
+#define CH_LOW_FREQUENCY AV_CH_LOW_FREQUENCY
+#define CH_BACK_LEFT AV_CH_BACK_LEFT
+#define CH_BACK_RIGHT AV_CH_BACK_RIGHT
+#define CH_FRONT_LEFT_OF_CENTER AV_CH_FRONT_LEFT_OF_CENTER
+#define CH_FRONT_RIGHT_OF_CENTER AV_CH_FRONT_RIGHT_OF_CENTER
+#define CH_BACK_CENTER AV_CH_BACK_CENTER
+#define CH_SIDE_LEFT AV_CH_SIDE_LEFT
+#define CH_SIDE_RIGHT AV_CH_SIDE_RIGHT
+#define CH_TOP_CENTER AV_CH_TOP_CENTER
+#define CH_TOP_FRONT_LEFT AV_CH_TOP_FRONT_LEFT
+#define CH_TOP_FRONT_CENTER AV_CH_TOP_FRONT_CENTER
+#define CH_TOP_FRONT_RIGHT AV_CH_TOP_FRONT_RIGHT
+#define CH_TOP_BACK_LEFT AV_CH_TOP_BACK_LEFT
+#define CH_TOP_BACK_CENTER AV_CH_TOP_BACK_CENTER
+#define CH_TOP_BACK_RIGHT AV_CH_TOP_BACK_RIGHT
+#define CH_STEREO_LEFT AV_CH_STEREO_LEFT
+#define CH_STEREO_RIGHT AV_CH_STEREO_RIGHT
+
+/** Channel mask value used for AVCodecContext.request_channel_layout
+ to indicate that the user requests the channel order of the decoder output
+ to be the native codec channel order. */
+#define CH_LAYOUT_NATIVE AV_CH_LAYOUT_NATIVE
+
+/* Audio channel convenience macros */
+#define CH_LAYOUT_MONO AV_CH_LAYOUT_MONO
+#define CH_LAYOUT_STEREO AV_CH_LAYOUT_STEREO
+#define CH_LAYOUT_2_1 AV_CH_LAYOUT_2_1
+#define CH_LAYOUT_SURROUND AV_CH_LAYOUT_SURROUND
+#define CH_LAYOUT_4POINT0 AV_CH_LAYOUT_4POINT0
+#define CH_LAYOUT_2_2 AV_CH_LAYOUT_2_2
+#define CH_LAYOUT_QUAD AV_CH_LAYOUT_QUAD
+#define CH_LAYOUT_5POINT0 AV_CH_LAYOUT_5POINT0
+#define CH_LAYOUT_5POINT1 AV_CH_LAYOUT_5POINT1
+#define CH_LAYOUT_5POINT0_BACK AV_CH_LAYOUT_5POINT0_BACK
+#define CH_LAYOUT_5POINT1_BACK AV_CH_LAYOUT_5POINT1_BACK
+#define CH_LAYOUT_7POINT0 AV_CH_LAYOUT_7POINT0
+#define CH_LAYOUT_7POINT1 AV_CH_LAYOUT_7POINT1
+#define CH_LAYOUT_7POINT1_WIDE AV_CH_LAYOUT_7POINT1_WIDE
+#define CH_LAYOUT_STEREO_DOWNMIX AV_CH_LAYOUT_STEREO_DOWNMIX
+#endif
+
+/* in bytes */
+#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
+
+/**
+ * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
+ * This is mainly needed because some optimized bitstream readers read
+ * 32 or 64 bit at once and could read over the end.<br>
+ * Note: If the first 23 bits of the additional bytes are not 0, then damaged
+ * MPEG bitstreams could cause overread and segfault.
+ */
+#define FF_INPUT_BUFFER_PADDING_SIZE 8
+
+/**
+ * minimum encoding buffer size
+ * Used to avoid some checks during header writing.
+ */
+#define FF_MIN_BUFFER_SIZE 16384
+
+
+/**
+ * motion estimation type.
+ */
+enum Motion_Est_ID {
+ ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed
+ ME_FULL,
+ ME_LOG,
+ ME_PHODS,
+ ME_EPZS, ///< enhanced predictive zonal search
+ ME_X1, ///< reserved for experiments
+ ME_HEX, ///< hexagon based search
+ ME_UMH, ///< uneven multi-hexagon search
+ ME_ITER, ///< iterative search
+ ME_TESA, ///< transformed exhaustive search algorithm
+};
+
+enum AVDiscard{
+ /* We leave some space between them for extensions (drop some
+ * keyframes for intra-only or drop just some bidir frames). */
+ AVDISCARD_NONE =-16, ///< discard nothing
+ AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi
+ AVDISCARD_NONREF = 8, ///< discard all non reference
+ AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
+ AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
+ AVDISCARD_ALL = 48, ///< discard all
+};
+
+enum AVColorPrimaries{
+ AVCOL_PRI_BT709 =1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
+ AVCOL_PRI_UNSPECIFIED=2,
+ AVCOL_PRI_BT470M =4,
+ AVCOL_PRI_BT470BG =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
+ AVCOL_PRI_SMPTE170M =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
+ AVCOL_PRI_SMPTE240M =7, ///< functionally identical to above
+ AVCOL_PRI_FILM =8,
+ AVCOL_PRI_NB , ///< Not part of ABI
+};
+
+enum AVColorTransferCharacteristic{
+ AVCOL_TRC_BT709 =1, ///< also ITU-R BT1361
+ AVCOL_TRC_UNSPECIFIED=2,
+ AVCOL_TRC_GAMMA22 =4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
+ AVCOL_TRC_GAMMA28 =5, ///< also ITU-R BT470BG
+ AVCOL_TRC_NB , ///< Not part of ABI
+};
+
+enum AVColorSpace{
+ AVCOL_SPC_RGB =0,
+ AVCOL_SPC_BT709 =1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
+ AVCOL_SPC_UNSPECIFIED=2,
+ AVCOL_SPC_FCC =4,
+ AVCOL_SPC_BT470BG =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
+ AVCOL_SPC_SMPTE170M =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
+ AVCOL_SPC_SMPTE240M =7,
+ AVCOL_SPC_NB , ///< Not part of ABI
+};
+
+enum AVColorRange{
+ AVCOL_RANGE_UNSPECIFIED=0,
+ AVCOL_RANGE_MPEG =1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges
+ AVCOL_RANGE_JPEG =2, ///< the normal 2^n-1 "JPEG" YUV ranges
+ AVCOL_RANGE_NB , ///< Not part of ABI
+};
+
+/**
+ * X X 3 4 X X are luma samples,
+ * 1 2 1-6 are possible chroma positions
+ * X X 5 6 X 0 is undefined/unknown position
+ */
+enum AVChromaLocation{
+ AVCHROMA_LOC_UNSPECIFIED=0,
+ AVCHROMA_LOC_LEFT =1, ///< mpeg2/4, h264 default
+ AVCHROMA_LOC_CENTER =2, ///< mpeg1, jpeg, h263
+ AVCHROMA_LOC_TOPLEFT =3, ///< DV
+ AVCHROMA_LOC_TOP =4,
+ AVCHROMA_LOC_BOTTOMLEFT =5,
+ AVCHROMA_LOC_BOTTOM =6,
+ AVCHROMA_LOC_NB , ///< Not part of ABI
+};
+
+#if FF_API_FLAC_GLOBAL_OPTS
+/**
+ * LPC analysis type
+ */
+attribute_deprecated enum AVLPCType {
+ AV_LPC_TYPE_DEFAULT = -1, ///< use the codec default LPC type
+ AV_LPC_TYPE_NONE = 0, ///< do not use LPC prediction or use all zero coefficients
+ AV_LPC_TYPE_FIXED = 1, ///< fixed LPC coefficients
+ AV_LPC_TYPE_LEVINSON = 2, ///< Levinson-Durbin recursion
+ AV_LPC_TYPE_CHOLESKY = 3, ///< Cholesky factorization
+ AV_LPC_TYPE_NB , ///< Not part of ABI
+};
+#endif
+
+enum AVAudioServiceType {
+ AV_AUDIO_SERVICE_TYPE_MAIN = 0,
+ AV_AUDIO_SERVICE_TYPE_EFFECTS = 1,
+ AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
+ AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3,
+ AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4,
+ AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5,
+ AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6,
+ AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7,
+ AV_AUDIO_SERVICE_TYPE_KARAOKE = 8,
+ AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI
+};
+
+typedef struct RcOverride{
+ int start_frame;
+ int end_frame;
+ int qscale; // If this is 0 then quality_factor will be used instead.
+ float quality_factor;
+} RcOverride;
+
+#define FF_MAX_B_FRAMES 16
+
+/* encoding support
+ These flags can be passed in AVCodecContext.flags before initialization.
+ Note: Not everything is supported yet.
+*/
+
+#define CODEC_FLAG_QSCALE 0x0002 ///< Use fixed qscale.
+#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / advanced prediction for H.263.
+#define CODEC_FLAG_QPEL 0x0010 ///< Use qpel MC.
+#define CODEC_FLAG_GMC 0x0020 ///< Use GMC.
+#define CODEC_FLAG_MV0 0x0040 ///< Always try a MB with MV=<0,0>.
+#define CODEC_FLAG_PART 0x0080 ///< Use data partitioning.
+/**
+ * The parent program guarantees that the input for B-frames containing
+ * streams is not written to for at least s->max_b_frames+1 frames, if
+ * this is not set the input will be copied.
+ */
+#define CODEC_FLAG_INPUT_PRESERVED 0x0100
+#define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode.
+#define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode.
+#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< Use external Huffman table (for MJPEG).
+#define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale.
+#define CODEC_FLAG_EMU_EDGE 0x4000 ///< Don't draw edges.
+#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding.
+#define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random
+ location instead of only at frame boundaries. */
+#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< Normalize adaptive quantization.
+#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT.
+#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< Force low delay.
+#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< Use alternate scan.
+#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< Place global headers in extradata instead of every keyframe.
+#define CODEC_FLAG_BITEXACT 0x00800000 ///< Use only bitexact stuff (except (I)DCT).
+/* Fx : Flag for h263+ extra options */
+#define CODEC_FLAG_AC_PRED 0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction
+#define CODEC_FLAG_H263P_UMV 0x02000000 ///< unlimited motion vector
+#define CODEC_FLAG_CBP_RD 0x04000000 ///< Use rate distortion optimization for cbp.
+#define CODEC_FLAG_QP_RD 0x08000000 ///< Use rate distortion optimization for qp selectioon.
+#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H.263 alternative inter VLC
+#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
+#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
+#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
+#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
+#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< Will reserve space for SVCD scan offset user data.
+#define CODEC_FLAG_CLOSED_GOP 0x80000000
+#define CODEC_FLAG2_FAST 0x00000001 ///< Allow non spec compliant speedup tricks.
+#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< Strictly enforce GOP size.
+#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< Skip bitstream encoding.
+#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< Place global headers at every keyframe instead of in extradata.
+#define CODEC_FLAG2_BPYRAMID 0x00000010 ///< H.264 allow B-frames to be used as references.
+#define CODEC_FLAG2_WPRED 0x00000020 ///< H.264 weighted biprediction for B-frames
+#define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock
+#define CODEC_FLAG2_8X8DCT 0x00000080 ///< H.264 high profile 8x8 transform
+#define CODEC_FLAG2_FASTPSKIP 0x00000100 ///< H.264 fast pskip
+#define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters
+#define CODEC_FLAG2_BRDO 0x00000400 ///< B-frame rate-distortion optimization
+#define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< Use MPEG-2 intra VLC table.
+#define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< Only do ME/MC (I frames -> ref, P frame -> ME+MC).
+#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format.
+#define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skipping
+#define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
+#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< Use MPEG-2 nonlinear quantizer.
+#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 ///< Use a bit reservoir when encoding if possible
+#define CODEC_FLAG2_MBTREE 0x00040000 ///< Use macroblock tree ratecontrol (x264 only)
+#define CODEC_FLAG2_PSY 0x00080000 ///< Use psycho visual optimizations.
+#define CODEC_FLAG2_SSIM 0x00100000 ///< Compute SSIM during encoding, error[] values are undefined.
+#define CODEC_FLAG2_INTRA_REFRESH 0x00200000 ///< Use periodic insertion of intra blocks instead of keyframes.
+
+/* Unsupported options :
+ * Syntax Arithmetic coding (SAC)
+ * Reference Picture Selection
+ * Independent Segment Decoding */
+/* /Fx */
+/* codec capabilities */
+
+#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback.
+/**
+ * Codec uses get_buffer() for allocating buffers and supports custom allocators.
+ * If not set, it might not use get_buffer() at all or use operations that
+ * assume the buffer was allocated by avcodec_default_get_buffer.
+ */
+#define CODEC_CAP_DR1 0x0002
+/* If 'parse_only' field is true, then avcodec_parse_frame() can be used. */
+#define CODEC_CAP_PARSE_ONLY 0x0004
+#define CODEC_CAP_TRUNCATED 0x0008
+/* Codec can export data for HW decoding (XvMC). */
+#define CODEC_CAP_HWACCEL 0x0010
+/**
+ * Codec has a nonzero delay and needs to be fed with NULL at the end to get the delayed data.
+ * If this is not set, the codec is guaranteed to never be fed with NULL data.
+ */
+#define CODEC_CAP_DELAY 0x0020
+/**
+ * Codec can be fed a final frame with a smaller size.
+ * This can be used to prevent truncation of the last audio samples.
+ */
+#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
+/**
+ * Codec can export data for HW decoding (VDPAU).
+ */
+#define CODEC_CAP_HWACCEL_VDPAU 0x0080
+/**
+ * Codec can output multiple frames per AVPacket
+ * Normally demuxers return one frame at a time, demuxers which do not do
+ * are connected to a parser to split what they return into proper frames.
+ * This flag is reserved to the very rare category of codecs which have a
+ * bitstream that cannot be split into frames without timeconsuming
+ * operations like full decoding. Demuxers carring such bitstreams thus
+ * may return multiple frames in a packet. This has many disadvantages like
+ * prohibiting stream copy in many cases thus it should only be considered
+ * as a last resort.
+ */
+#define CODEC_CAP_SUBFRAMES 0x0100
+/**
+ * Codec is experimental and is thus avoided in favor of non experimental
+ * encoders
+ */
+#define CODEC_CAP_EXPERIMENTAL 0x0200
+/**
+ * Codec should fill in channel configuration and samplerate instead of container
+ */
+#define CODEC_CAP_CHANNEL_CONF 0x0400
+/**
+ * Codec is able to deal with negative linesizes
+ */
+#define CODEC_CAP_NEG_LINESIZES 0x0800
+/**
+ * Codec supports frame-level multithreading.
+ */
+#define CODEC_CAP_FRAME_THREADS 0x1000
+/**
+ * Codec supports slice-based (or partition-based) multithreading.
+ */
+#define CODEC_CAP_SLICE_THREADS 0x2000
+
+//The following defines may change, don't expect compatibility if you use them.
+#define MB_TYPE_INTRA4x4 0x0001
+#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
+#define MB_TYPE_INTRA_PCM 0x0004 //FIXME H.264-specific
+#define MB_TYPE_16x16 0x0008
+#define MB_TYPE_16x8 0x0010
+#define MB_TYPE_8x16 0x0020
+#define MB_TYPE_8x8 0x0040
+#define MB_TYPE_INTERLACED 0x0080
+#define MB_TYPE_DIRECT2 0x0100 //FIXME
+#define MB_TYPE_ACPRED 0x0200
+#define MB_TYPE_GMC 0x0400
+#define MB_TYPE_SKIP 0x0800
+#define MB_TYPE_P0L0 0x1000
+#define MB_TYPE_P1L0 0x2000
+#define MB_TYPE_P0L1 0x4000
+#define MB_TYPE_P1L1 0x8000
+#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
+#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
+#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
+#define MB_TYPE_QUANT 0x00010000
+#define MB_TYPE_CBP 0x00020000
+//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
+
+/**
+ * Pan Scan area.
+ * This specifies the area which should be displayed.
+ * Note there may be multiple such areas for one frame.
+ */
+typedef struct AVPanScan{
+ /**
+ * id
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int id;
+
+ /**
+ * width and height in 1/16 pel
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int width;
+ int height;
+
+ /**
+ * position of the top left corner in 1/16 pel for up to 3 fields/frames
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int16_t position[3][2];
+}AVPanScan;
+
+#define FF_COMMON_FRAME \
+ /**\
+ * pointer to the picture planes.\
+ * This might be different from the first allocated byte\
+ * - encoding: \
+ * - decoding: \
+ */\
+ uint8_t *data[4];\
+ int linesize[4];\
+ /**\
+ * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer.\
+ * This isn't used by libavcodec unless the default get/release_buffer() is used.\
+ * - encoding: \
+ * - decoding: \
+ */\
+ uint8_t *base[4];\
+ /**\
+ * 1 -> keyframe, 0-> not\
+ * - encoding: Set by libavcodec.\
+ * - decoding: Set by libavcodec.\
+ */\
+ int key_frame;\
+\
+ /**\
+ * Picture type of the frame, see ?_TYPE below.\
+ * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\
+ * - decoding: Set by libavcodec.\
+ */\
+ enum AVPictureType pict_type;\
+\
+ /**\
+ * presentation timestamp in time_base units (time when frame should be shown to user)\
+ * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed.\
+ * - encoding: MUST be set by user.\
+ * - decoding: Set by libavcodec.\
+ */\
+ int64_t pts;\
+\
+ /**\
+ * picture number in bitstream order\
+ * - encoding: set by\
+ * - decoding: Set by libavcodec.\
+ */\
+ int coded_picture_number;\
+ /**\
+ * picture number in display order\
+ * - encoding: set by\
+ * - decoding: Set by libavcodec.\
+ */\
+ int display_picture_number;\
+\
+ /**\
+ * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
+ * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\
+ * - decoding: Set by libavcodec.\
+ */\
+ int quality; \
+\
+ /**\
+ * buffer age (1->was last buffer and dint change, 2->..., ...).\
+ * Set to INT_MAX if the buffer has not been used yet.\
+ * - encoding: unused\
+ * - decoding: MUST be set by get_buffer().\
+ */\
+ int age;\
+\
+ /**\
+ * is this picture used as reference\
+ * The values for this are the same as the MpegEncContext.picture_structure\
+ * variable, that is 1->top field, 2->bottom field, 3->frame/both fields.\
+ * Set to 4 for delayed, non-reference frames.\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec. (before get_buffer() call)).\
+ */\
+ int reference;\
+\
+ /**\
+ * QP table\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec.\
+ */\
+ int8_t *qscale_table;\
+ /**\
+ * QP store stride\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec.\
+ */\
+ int qstride;\
+\
+ /**\
+ * mbskip_table[mb]>=1 if MB didn't change\
+ * stride= mb_width = (width+15)>>4\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec.\
+ */\
+ uint8_t *mbskip_table;\
+\
+ /**\
+ * motion vector table\
+ * @code\
+ * example:\
+ * int mv_sample_log2= 4 - motion_subsample_log2;\
+ * int mb_width= (width+15)>>4;\
+ * int mv_stride= (mb_width << mv_sample_log2) + 1;\
+ * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
+ * @endcode\
+ * - encoding: Set by user.\
+ * - decoding: Set by libavcodec.\
+ */\
+ int16_t (*motion_val[2])[2];\
+\
+ /**\
+ * macroblock type table\
+ * mb_type_base + mb_width + 2\
+ * - encoding: Set by user.\
+ * - decoding: Set by libavcodec.\
+ */\
+ uint32_t *mb_type;\
+\
+ /**\
+ * log2 of the size of the block which a single vector in motion_val represents: \
+ * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec.\
+ */\
+ uint8_t motion_subsample_log2;\
+\
+ /**\
+ * for some private data of the user\
+ * - encoding: unused\
+ * - decoding: Set by user.\
+ */\
+ void *opaque;\
+\
+ /**\
+ * error\
+ * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR.\
+ * - decoding: unused\
+ */\
+ uint64_t error[4];\
+\
+ /**\
+ * type of the buffer (to keep track of who has to deallocate data[*])\
+ * - encoding: Set by the one who allocates it.\
+ * - decoding: Set by the one who allocates it.\
+ * Note: User allocated (direct rendering) & internal buffers cannot coexist currently.\
+ */\
+ int type;\
+ \
+ /**\
+ * When decoding, this signals how much the picture must be delayed.\
+ * extra_delay = repeat_pict / (2*fps)\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec.\
+ */\
+ int repeat_pict;\
+ \
+ /**\
+ * \
+ */\
+ int qscale_type;\
+ \
+ /**\
+ * The content of the picture is interlaced.\
+ * - encoding: Set by user.\
+ * - decoding: Set by libavcodec. (default 0)\
+ */\
+ int interlaced_frame;\
+ \
+ /**\
+ * If the content is interlaced, is top field displayed first.\
+ * - encoding: Set by user.\
+ * - decoding: Set by libavcodec.\
+ */\
+ int top_field_first;\
+ \
+ /**\
+ * Pan scan.\
+ * - encoding: Set by user.\
+ * - decoding: Set by libavcodec.\
+ */\
+ AVPanScan *pan_scan;\
+ \
+ /**\
+ * Tell user application that palette has changed from previous frame.\
+ * - encoding: ??? (no palette-enabled encoder yet)\
+ * - decoding: Set by libavcodec. (default 0).\
+ */\
+ int palette_has_changed;\
+ \
+ /**\
+ * codec suggestion on buffer type if != 0\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec. (before get_buffer() call)).\
+ */\
+ int buffer_hints;\
+\
+ /**\
+ * DCT coefficients\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec.\
+ */\
+ short *dct_coeff;\
+\
+ /**\
+ * motion reference frame index\
+ * the order in which these are stored can depend on the codec.\
+ * - encoding: Set by user.\
+ * - decoding: Set by libavcodec.\
+ */\
+ int8_t *ref_index[2];\
+\
+ /**\
+ * reordered opaque 64bit (generally an integer or a double precision float\
+ * PTS but can be anything). \
+ * The user sets AVCodecContext.reordered_opaque to represent the input at\
+ * that time,\
+ * the decoder reorders values as needed and sets AVFrame.reordered_opaque\
+ * to exactly one of the values provided by the user through AVCodecContext.reordered_opaque \
+ * @deprecated in favor of pkt_pts\
+ * - encoding: unused\
+ * - decoding: Read by user.\
+ */\
+ int64_t reordered_opaque;\
+\
+ /**\
+ * hardware accelerator private data (Libav-allocated)\
+ * - encoding: unused\
+ * - decoding: Set by libavcodec\
+ */\
+ void *hwaccel_picture_private;\
+\
+ /**\
+ * reordered pts from the last AVPacket that has been input into the decoder\
+ * - encoding: unused\
+ * - decoding: Read by user.\
+ */\
+ int64_t pkt_pts;\
+\
+ /**\
+ * dts from the last AVPacket that has been input into the decoder\
+ * - encoding: unused\
+ * - decoding: Read by user.\
+ */\
+ int64_t pkt_dts;\
+\
+ /**\
+ * the AVCodecContext which ff_thread_get_buffer() was last called on\
+ * - encoding: Set by libavcodec.\
+ * - decoding: Set by libavcodec.\
+ */\
+ struct AVCodecContext *owner;\
+\
+ /**\
+ * used by multithreading to store frame-specific info\
+ * - encoding: Set by libavcodec.\
+ * - decoding: Set by libavcodec.\
+ */\
+ void *thread_opaque;\
+
+#define FF_QSCALE_TYPE_MPEG1 0
+#define FF_QSCALE_TYPE_MPEG2 1
+#define FF_QSCALE_TYPE_H264 2
+#define FF_QSCALE_TYPE_VP56 3
+
+#define FF_BUFFER_TYPE_INTERNAL 1
+#define FF_BUFFER_TYPE_USER 2 ///< direct rendering buffers (image is (de)allocated by user)
+#define FF_BUFFER_TYPE_SHARED 4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared.
+#define FF_BUFFER_TYPE_COPY 8 ///< Just a (modified) copy of some other buffer, don't deallocate anything.
+
+#if FF_API_OLD_FF_PICT_TYPES
+/* DEPRECATED, directly use the AV_PICTURE_TYPE_* enum values */
+#define FF_I_TYPE AV_PICTURE_TYPE_I ///< Intra
+#define FF_P_TYPE AV_PICTURE_TYPE_P ///< Predicted
+#define FF_B_TYPE AV_PICTURE_TYPE_B ///< Bi-dir predicted
+#define FF_S_TYPE AV_PICTURE_TYPE_S ///< S(GMC)-VOP MPEG4
+#define FF_SI_TYPE AV_PICTURE_TYPE_SI ///< Switching Intra
+#define FF_SP_TYPE AV_PICTURE_TYPE_SP ///< Switching Predicted
+#define FF_BI_TYPE AV_PICTURE_TYPE_BI
+#endif
+
+#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore).
+#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer.
+#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content.
+#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update).
+
+enum AVPacketSideDataType {
+ AV_PKT_DATA_PALETTE,
+};
+
+typedef struct AVPacket {
+ /**
+ * Presentation timestamp in AVStream->time_base units; the time at which
+ * the decompressed packet will be presented to the user.
+ * Can be AV_NOPTS_VALUE if it is not stored in the file.
+ * pts MUST be larger or equal to dts as presentation cannot happen before
+ * decompression, unless one wants to view hex dumps. Some formats misuse
+ * the terms dts and pts/cts to mean something different. Such timestamps
+ * must be converted to true pts/dts before they are stored in AVPacket.
+ */
+ int64_t pts;
+ /**
+ * Decompression timestamp in AVStream->time_base units; the time at which
+ * the packet is decompressed.
+ * Can be AV_NOPTS_VALUE if it is not stored in the file.
+ */
+ int64_t dts;
+ uint8_t *data;
+ int size;
+ int stream_index;
+ int flags;
+ /**
+ * Additional packet data that can be provided by the container.
+ * Packet can contain several types of side information.
+ */
+ struct {
+ uint8_t *data;
+ int size;
+ enum AVPacketSideDataType type;
+ } *side_data;
+ int side_data_elems;
+
+ /**
+ * Duration of this packet in AVStream->time_base units, 0 if unknown.
+ * Equals next_pts - this_pts in presentation order.
+ */
+ int duration;
+ void (*destruct)(struct AVPacket *);
+ void *priv;
+ int64_t pos; ///< byte position in stream, -1 if unknown
+
+ /**
+ * Time difference in AVStream->time_base units from the pts of this
+ * packet to the point at which the output from the decoder has converged
+ * independent from the availability of previous frames. That is, the
+ * frames are virtually identical no matter if decoding started from
+ * the very first frame or from this keyframe.
+ * Is AV_NOPTS_VALUE if unknown.
+ * This field is not the display duration of the current packet.
+ * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
+ * set.
+ *
+ * The purpose of this field is to allow seeking in streams that have no
+ * keyframes in the conventional sense. It corresponds to the
+ * recovery point SEI in H.264 and match_time_delta in NUT. It is also
+ * essential for some types of subtitle streams to ensure that all
+ * subtitles are correctly displayed after seeking.
+ */
+ int64_t convergence_duration;
+} AVPacket;
+#define AV_PKT_FLAG_KEY 0x0001
+
+/**
+ * Audio Video Frame.
+ * New fields can be added to the end of FF_COMMON_FRAME with minor version
+ * bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump. No fields should be added into AVFrame before or after
+ * FF_COMMON_FRAME!
+ * sizeof(AVFrame) must not be used outside libav*.
+ */
+typedef struct AVFrame {
+ FF_COMMON_FRAME
+} AVFrame;
+
+/**
+ * main external API structure.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVCodecContext) must not be used outside libav*.
+ */
+typedef struct AVCodecContext {
+ /**
+ * information on struct for av_log
+ * - set by avcodec_alloc_context
+ */
+ const AVClass *av_class;
+ /**
+ * the average bitrate
+ * - encoding: Set by user; unused for constant quantizer encoding.
+ * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream.
+ */
+ int bit_rate;
+
+ /**
+ * number of bits the bitstream is allowed to diverge from the reference.
+ * the reference can be CBR (for CBR pass1) or VBR (for pass2)
+ * - encoding: Set by user; unused for constant quantizer encoding.
+ * - decoding: unused
+ */
+ int bit_rate_tolerance;
+
+ /**
+ * CODEC_FLAG_*.
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int flags;
+
+ /**
+ * Some codecs need additional format info. It is stored here.
+ * If any muxer uses this then ALL demuxers/parsers AND encoders for the
+ * specific codec MUST set it correctly otherwise stream copy breaks.
+ * In general use of this field by muxers is not recommanded.
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec. (FIXME: Is this OK?)
+ */
+ int sub_id;
+
+ /**
+ * Motion estimation algorithm used for video coding.
+ * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
+ * 8 (umh), 9 (iter), 10 (tesa) [7, 8, 10 are x264 specific, 9 is snow specific]
+ * - encoding: MUST be set by user.
+ * - decoding: unused
+ */
+ int me_method;
+
+ /**
+ * some codecs need / can use extradata like Huffman tables.
+ * mjpeg: Huffman tables
+ * rv10: additional flags
+ * mpeg4: global headers (they can be in the bitstream or here)
+ * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
+ * than extradata_size to avoid prolems if it is read with the bitstream reader.
+ * The bytewise contents of extradata must not depend on the architecture or CPU endianness.
+ * - encoding: Set/allocated/freed by libavcodec.
+ * - decoding: Set/allocated/freed by user.
+ */
+ uint8_t *extradata;
+ int extradata_size;
+
+ /**
+ * This is the fundamental unit of time (in seconds) in terms
+ * of which frame timestamps are represented. For fixed-fps content,
+ * timebase should be 1/framerate and timestamp increments should be
+ * identically 1.
+ * - encoding: MUST be set by user.
+ * - decoding: Set by libavcodec.
+ */
+ AVRational time_base;
+
+ /* video only */
+ /**
+ * picture width / height.
+ * - encoding: MUST be set by user.
+ * - decoding: Set by libavcodec.
+ * Note: For compatibility it is possible to set this instead of
+ * coded_width/height before decoding.
+ */
+ int width, height;
+
+#define FF_ASPECT_EXTENDED 15
+
+ /**
+ * the number of pictures in a group of pictures, or 0 for intra_only
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int gop_size;
+
+ /**
+ * Pixel format, see PIX_FMT_xxx.
+ * May be set by the demuxer if known from headers.
+ * May be overriden by the decoder if it knows better.
+ * - encoding: Set by user.
+ * - decoding: Set by user if known, overridden by libavcodec if known
+ */
+ enum PixelFormat pix_fmt;
+
+ /**
+ * If non NULL, 'draw_horiz_band' is called by the libavcodec
+ * decoder to draw a horizontal band. It improves cache usage. Not
+ * all codecs can do that. You must check the codec capabilities
+ * beforehand.
+ * When multithreading is used, it may be called from multiple threads
+ * at the same time; threads might draw different parts of the same AVFrame,
+ * or multiple AVFrames, and there is no guarantee that slices will be drawn
+ * in order.
+ * The function is also used by hardware acceleration APIs.
+ * It is called at least once during frame decoding to pass
+ * the data needed for hardware render.
+ * In that mode instead of pixel data, AVFrame points to
+ * a structure specific to the acceleration API. The application
+ * reads the structure and can change some fields to indicate progress
+ * or mark state.
+ * - encoding: unused
+ * - decoding: Set by user.
+ * @param height the height of the slice
+ * @param y the y position of the slice
+ * @param type 1->top field, 2->bottom field, 3->frame
+ * @param offset offset into the AVFrame.data from which the slice should be read
+ */
+ void (*draw_horiz_band)(struct AVCodecContext *s,
+ const AVFrame *src, int offset[4],
+ int y, int type, int height);
+
+ /* audio only */
+ int sample_rate; ///< samples per second
+ int channels; ///< number of audio channels
+
+ /**
+ * audio sample format
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ enum AVSampleFormat sample_fmt; ///< sample format
+
+ /* The following data should not be initialized. */
+ /**
+ * Samples per packet, initialized when calling 'init'.
+ */
+ int frame_size;
+ int frame_number; ///< audio or video frame number
+
+ /**
+ * Number of frames the decoded output will be delayed relative to
+ * the encoded input.
+ * - encoding: Set by libavcodec.
+ * - decoding: unused
+ */
+ int delay;
+
+ /* - encoding parameters */
+ float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
+ float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
+
+ /**
+ * minimum quantizer
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int qmin;
+
+ /**
+ * maximum quantizer
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int qmax;
+
+ /**
+ * maximum quantizer difference between frames
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int max_qdiff;
+
+ /**
+ * maximum number of B-frames between non-B-frames
+ * Note: The output will be delayed by max_b_frames+1 relative to the input.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int max_b_frames;
+
+ /**
+ * qscale factor between IP and B-frames
+ * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset).
+ * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float b_quant_factor;
+
+ /** obsolete FIXME remove */
+ int rc_strategy;
+#define FF_RC_STRATEGY_XVID 1
+
+ int b_frame_strategy;
+
+ struct AVCodec *codec;
+
+ void *priv_data;
+
+ int rtp_payload_size; /* The size of the RTP payload: the coder will */
+ /* do its best to deliver a chunk with size */
+ /* below rtp_payload_size, the chunk will start */
+ /* with a start code on some codecs like H.263. */
+ /* This doesn't take account of any particular */
+ /* headers inside the transmitted RTP payload. */
+
+
+ /* The RTP callback: This function is called */
+ /* every time the encoder has a packet to send. */
+ /* It depends on the encoder if the data starts */
+ /* with a Start Code (it should). H.263 does. */
+ /* mb_nb contains the number of macroblocks */
+ /* encoded in the RTP payload. */
+ void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
+
+ /* statistics, used for 2-pass encoding */
+ int mv_bits;
+ int header_bits;
+ int i_tex_bits;
+ int p_tex_bits;
+ int i_count;
+ int p_count;
+ int skip_count;
+ int misc_bits;
+
+ /**
+ * number of bits used for the previously encoded frame
+ * - encoding: Set by libavcodec.
+ * - decoding: unused
+ */
+ int frame_bits;
+
+ /**
+ * Private data of the user, can be used to carry app specific stuff.
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ void *opaque;
+
+ char codec_name[32];
+ enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
+ enum CodecID codec_id; /* see CODEC_ID_xxx */
+
+ /**
+ * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+ * This is used to work around some encoder bugs.
+ * A demuxer should set this to what is stored in the field used to identify the codec.
+ * If there are multiple such fields in a container then the demuxer should choose the one
+ * which maximizes the information about the used codec.
+ * If the codec tag field in a container is larger then 32 bits then the demuxer should
+ * remap the longer ID to 32 bits with a table or other structure. Alternatively a new
+ * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated
+ * first.
+ * - encoding: Set by user, if not then the default based on codec_id will be used.
+ * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
+ */
+ unsigned int codec_tag;
+
+ /**
+ * Work around bugs in encoders which sometimes cannot be detected automatically.
+ * - encoding: Set by user
+ * - decoding: Set by user
+ */
+ int workaround_bugs;
+#define FF_BUG_AUTODETECT 1 ///< autodetection
+#define FF_BUG_OLD_MSMPEG4 2
+#define FF_BUG_XVID_ILACE 4
+#define FF_BUG_UMP4 8
+#define FF_BUG_NO_PADDING 16
+#define FF_BUG_AMV 32
+#define FF_BUG_AC_VLC 0 ///< Will be removed, libavcodec can now handle these non-compliant files by default.
+#define FF_BUG_QPEL_CHROMA 64
+#define FF_BUG_STD_QPEL 128
+#define FF_BUG_QPEL_CHROMA2 256
+#define FF_BUG_DIRECT_BLOCKSIZE 512
+#define FF_BUG_EDGE 1024
+#define FF_BUG_HPEL_CHROMA 2048
+#define FF_BUG_DC_CLIP 4096
+#define FF_BUG_MS 8192 ///< Work around various bugs in Microsoft's broken decoders.
+#define FF_BUG_TRUNCATED 16384
+//#define FF_BUG_FAKE_SCALABILITY 16 //Autodetection should work 100%.
+
+ /**
+ * luma single coefficient elimination threshold
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int luma_elim_threshold;
+
+ /**
+ * chroma single coeff elimination threshold
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int chroma_elim_threshold;
+
+ /**
+ * strictly follow the standard (MPEG4, ...).
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ * Setting this to STRICT or higher means the encoder and decoder will
+ * generally do stupid things, whereas setting it to unofficial or lower
+ * will mean the encoder might produce output that is not supported by all
+ * spec-compliant decoders. Decoders don't differentiate between normal,
+ * unofficial and experimental (that is, they always try to decode things
+ * when they can) unless they are explicitly asked to behave stupidly
+ * (=strictly conform to the specs)
+ */
+ int strict_std_compliance;
+#define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to an older more strict version of the spec or reference software.
+#define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences.
+#define FF_COMPLIANCE_NORMAL 0
+#define FF_COMPLIANCE_UNOFFICIAL -1 ///< Allow unofficial extensions
+#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
+
+ /**
+ * qscale offset between IP and B-frames
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float b_quant_offset;
+
+ /**
+ * Error recognization; higher values will detect more errors but may
+ * misdetect some more or less valid parts as errors.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int error_recognition;
+#define FF_ER_CAREFUL 1
+#define FF_ER_COMPLIANT 2
+#define FF_ER_AGGRESSIVE 3
+#define FF_ER_VERY_AGGRESSIVE 4
+
+ /**
+ * Called at the beginning of each frame to get a buffer for it.
+ * If pic.reference is set then the frame will be read later by libavcodec.
+ * avcodec_align_dimensions2() should be used to find the required width and
+ * height, as they normally need to be rounded up to the next multiple of 16.
+ * if CODEC_CAP_DR1 is not set then get_buffer() must call
+ * avcodec_default_get_buffer() instead of providing buffers allocated by
+ * some other means.
+ * If frame multithreading is used and thread_safe_callbacks is set,
+ * it may be called from a different thread, but not from more than one at once.
+ * Does not need to be reentrant.
+ * - encoding: unused
+ * - decoding: Set by libavcodec, user can override.
+ */
+ int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
+
+ /**
+ * Called to release buffers which were allocated with get_buffer.
+ * A released buffer can be reused in get_buffer().
+ * pic.data[*] must be set to NULL.
+ * May be called from a different thread if frame multithreading is used,
+ * but not by more than one thread at once, so does not need to be reentrant.
+ * - encoding: unused
+ * - decoding: Set by libavcodec, user can override.
+ */
+ void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
+
+ /**
+ * Size of the frame reordering buffer in the decoder.
+ * For MPEG-2 it is 1 IPB or 0 low delay IP.
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ int has_b_frames;
+
+ /**
+ * number of bytes per packet if constant and known or 0
+ * Used by some WAV based audio codecs.
+ */
+ int block_align;
+
+ int parse_only; /* - decoding only: If true, only parsing is done
+ (function avcodec_parse_frame()). The frame
+ data is returned. Only MPEG codecs support this now. */
+
+ /**
+ * 0-> h263 quant 1-> mpeg quant
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mpeg_quant;
+
+ /**
+ * pass1 encoding statistics output buffer
+ * - encoding: Set by libavcodec.
+ * - decoding: unused
+ */
+ char *stats_out;
+
+ /**
+ * pass2 encoding statistics input buffer
+ * Concatenated stuff from stats_out of pass1 should be placed here.
+ * - encoding: Allocated/set/freed by user.
+ * - decoding: unused
+ */
+ char *stats_in;
+
+ /**
+ * ratecontrol qmin qmax limiting method
+ * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float rc_qsquish;
+
+ float rc_qmod_amp;
+ int rc_qmod_freq;
+
+ /**
+ * ratecontrol override, see RcOverride
+ * - encoding: Allocated/set/freed by user.
+ * - decoding: unused
+ */
+ RcOverride *rc_override;
+ int rc_override_count;
+
+ /**
+ * rate control equation
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ const char *rc_eq;
+
+ /**
+ * maximum bitrate
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int rc_max_rate;
+
+ /**
+ * minimum bitrate
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int rc_min_rate;
+
+ /**
+ * decoder bitstream buffer size
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int rc_buffer_size;
+ float rc_buffer_aggressivity;
+
+ /**
+ * qscale factor between P and I-frames
+ * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset).
+ * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float i_quant_factor;
+
+ /**
+ * qscale offset between P and I-frames
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float i_quant_offset;
+
+ /**
+ * initial complexity for pass1 ratecontrol
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float rc_initial_cplx;
+
+ /**
+ * DCT algorithm, see FF_DCT_* below
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int dct_algo;
+#define FF_DCT_AUTO 0
+#define FF_DCT_FASTINT 1
+#define FF_DCT_INT 2
+#define FF_DCT_MMX 3
+#define FF_DCT_MLIB 4
+#define FF_DCT_ALTIVEC 5
+#define FF_DCT_FAAN 6
+
+ /**
+ * luminance masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float lumi_masking;
+
+ /**
+ * temporary complexity masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float temporal_cplx_masking;
+
+ /**
+ * spatial complexity masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float spatial_cplx_masking;
+
+ /**
+ * p block masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float p_masking;
+
+ /**
+ * darkness masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float dark_masking;
+
+ /**
+ * IDCT algorithm, see FF_IDCT_* below.
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int idct_algo;
+#define FF_IDCT_AUTO 0
+#define FF_IDCT_INT 1
+#define FF_IDCT_SIMPLE 2
+#define FF_IDCT_SIMPLEMMX 3
+#define FF_IDCT_LIBMPEG2MMX 4
+#define FF_IDCT_PS2 5
+#define FF_IDCT_MLIB 6
+#define FF_IDCT_ARM 7
+#define FF_IDCT_ALTIVEC 8
+#define FF_IDCT_SH4 9
+#define FF_IDCT_SIMPLEARM 10
+#define FF_IDCT_H264 11
+#define FF_IDCT_VP3 12
+#define FF_IDCT_IPP 13
+#define FF_IDCT_XVIDMMX 14
+#define FF_IDCT_CAVS 15
+#define FF_IDCT_SIMPLEARMV5TE 16
+#define FF_IDCT_SIMPLEARMV6 17
+#define FF_IDCT_SIMPLEVIS 18
+#define FF_IDCT_WMV2 19
+#define FF_IDCT_FAAN 20
+#define FF_IDCT_EA 21
+#define FF_IDCT_SIMPLENEON 22
+#define FF_IDCT_SIMPLEALPHA 23
+#define FF_IDCT_BINK 24
+
+ /**
+ * slice count
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by user (or 0).
+ */
+ int slice_count;
+ /**
+ * slice offsets in the frame in bytes
+ * - encoding: Set/allocated by libavcodec.
+ * - decoding: Set/allocated by user (or NULL).
+ */
+ int *slice_offset;
+
+ /**
+ * error concealment flags
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int error_concealment;
+#define FF_EC_GUESS_MVS 1
+#define FF_EC_DEBLOCK 2
+
+ /**
+ * dsp_mask could be add used to disable unwanted CPU features
+ * CPU features (i.e. MMX, SSE. ...)
+ *
+ * With the FORCE flag you may instead enable given CPU features.
+ * (Dangerous: Usable in case of misdetection, improper usage however will
+ * result into program crash.)
+ */
+ unsigned dsp_mask;
+
+ /**
+ * bits per sample/pixel from the demuxer (needed for huffyuv).
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by user.
+ */
+ int bits_per_coded_sample;
+
+ /**
+ * prediction method (needed for huffyuv)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int prediction_method;
+#define FF_PRED_LEFT 0
+#define FF_PRED_PLANE 1
+#define FF_PRED_MEDIAN 2
+
+ /**
+ * sample aspect ratio (0 if unknown)
+ * That is the width of a pixel divided by the height of the pixel.
+ * Numerator and denominator must be relatively prime and smaller than 256 for some video standards.
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ AVRational sample_aspect_ratio;
+
+ /**
+ * the picture in the bitstream
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ AVFrame *coded_frame;
+
+ /**
+ * debug
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int debug;
+#define FF_DEBUG_PICT_INFO 1
+#define FF_DEBUG_RC 2
+#define FF_DEBUG_BITSTREAM 4
+#define FF_DEBUG_MB_TYPE 8
+#define FF_DEBUG_QP 16
+#define FF_DEBUG_MV 32
+#define FF_DEBUG_DCT_COEFF 0x00000040
+#define FF_DEBUG_SKIP 0x00000080
+#define FF_DEBUG_STARTCODE 0x00000100
+#define FF_DEBUG_PTS 0x00000200
+#define FF_DEBUG_ER 0x00000400
+#define FF_DEBUG_MMCO 0x00000800
+#define FF_DEBUG_BUGS 0x00001000
+#define FF_DEBUG_VIS_QP 0x00002000
+#define FF_DEBUG_VIS_MB_TYPE 0x00004000
+#define FF_DEBUG_BUFFERS 0x00008000
+#define FF_DEBUG_THREADS 0x00010000
+
+ /**
+ * debug
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int debug_mv;
+#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
+#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
+#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
+
+ /**
+ * error
+ * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR.
+ * - decoding: unused
+ */
+ uint64_t error[4];
+
+ /**
+ * motion estimation comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_cmp;
+ /**
+ * subpixel motion estimation comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_sub_cmp;
+ /**
+ * macroblock comparison function (not supported yet)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_cmp;
+ /**
+ * interlaced DCT comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int ildct_cmp;
+#define FF_CMP_SAD 0
+#define FF_CMP_SSE 1
+#define FF_CMP_SATD 2
+#define FF_CMP_DCT 3
+#define FF_CMP_PSNR 4
+#define FF_CMP_BIT 5
+#define FF_CMP_RD 6
+#define FF_CMP_ZERO 7
+#define FF_CMP_VSAD 8
+#define FF_CMP_VSSE 9
+#define FF_CMP_NSSE 10
+#define FF_CMP_W53 11
+#define FF_CMP_W97 12
+#define FF_CMP_DCTMAX 13
+#define FF_CMP_DCT264 14
+#define FF_CMP_CHROMA 256
+
+ /**
+ * ME diamond size & shape
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int dia_size;
+
+ /**
+ * amount of previous MV predictors (2a+1 x 2a+1 square)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int last_predictor_count;
+
+ /**
+ * prepass for motion estimation
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int pre_me;
+
+ /**
+ * motion estimation prepass comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_pre_cmp;
+
+ /**
+ * ME prepass diamond size & shape
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int pre_dia_size;
+
+ /**
+ * subpel ME quality
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_subpel_quality;
+
+ /**
+ * callback to negotiate the pixelFormat
+ * @param fmt is the list of formats which are supported by the codec,
+ * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
+ * The first is always the native one.
+ * @return the chosen format
+ * - encoding: unused
+ * - decoding: Set by user, if not set the native format will be chosen.
+ */
+ enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
+
+ /**
+ * DTG active format information (additional aspect ratio
+ * information only used in DVB MPEG-2 transport streams)
+ * 0 if not set.
+ *
+ * - encoding: unused
+ * - decoding: Set by decoder.
+ */
+ int dtg_active_format;
+#define FF_DTG_AFD_SAME 8
+#define FF_DTG_AFD_4_3 9
+#define FF_DTG_AFD_16_9 10
+#define FF_DTG_AFD_14_9 11
+#define FF_DTG_AFD_4_3_SP_14_9 13
+#define FF_DTG_AFD_16_9_SP_14_9 14
+#define FF_DTG_AFD_SP_4_3 15
+
+ /**
+ * maximum motion estimation search range in subpel units
+ * If 0 then no limit.
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_range;
+
+ /**
+ * intra quantizer bias
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int intra_quant_bias;
+#define FF_DEFAULT_QUANT_BIAS 999999
+
+ /**
+ * inter quantizer bias
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int inter_quant_bias;
+
+ /**
+ * color table ID
+ * - encoding: unused
+ * - decoding: Which clrtable should be used for 8bit RGB images.
+ * Tables have to be stored somewhere. FIXME
+ */
+ int color_table_id;
+
+ /**
+ * internal_buffer count
+ * Don't touch, used by libavcodec default_get_buffer().
+ */
+ int internal_buffer_count;
+
+ /**
+ * internal_buffers
+ * Don't touch, used by libavcodec default_get_buffer().
+ */
+ void *internal_buffer;
+
+ /**
+ * Global quality for codecs which cannot change it per frame.
+ * This should be proportional to MPEG-1/2/4 qscale.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int global_quality;
+
+#define FF_CODER_TYPE_VLC 0
+#define FF_CODER_TYPE_AC 1
+#define FF_CODER_TYPE_RAW 2
+#define FF_CODER_TYPE_RLE 3
+#define FF_CODER_TYPE_DEFLATE 4
+ /**
+ * coder type
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int coder_type;
+
+ /**
+ * context model
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int context_model;
+#if 0
+ /**
+ *
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
+#endif
+
+ /**
+ * slice flags
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int slice_flags;
+#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
+#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
+#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
+
+ /**
+ * XVideo Motion Acceleration
+ * - encoding: forbidden
+ * - decoding: set by decoder
+ */
+ int xvmc_acceleration;
+
+ /**
+ * macroblock decision mode
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_decision;
+#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
+#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
+#define FF_MB_DECISION_RD 2 ///< rate distortion
+
+ /**
+ * custom intra quantization matrix
+ * - encoding: Set by user, can be NULL.
+ * - decoding: Set by libavcodec.
+ */
+ uint16_t *intra_matrix;
+
+ /**
+ * custom inter quantization matrix
+ * - encoding: Set by user, can be NULL.
+ * - decoding: Set by libavcodec.
+ */
+ uint16_t *inter_matrix;
+
+ /**
+ * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+ * This is used to work around some encoder bugs.
+ * - encoding: unused
+ * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
+ */
+ unsigned int stream_codec_tag;
+
+ /**
+ * scene change detection threshold
+ * 0 is default, larger means fewer detected scene changes.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int scenechange_threshold;
+
+ /**
+ * minimum Lagrange multipler
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int lmin;
+
+ /**
+ * maximum Lagrange multipler
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int lmax;
+
+#if FF_API_PALETTE_CONTROL
+ /**
+ * palette control structure
+ * - encoding: ??? (no palette-enabled encoder yet)
+ * - decoding: Set by user.
+ */
+ struct AVPaletteControl *palctrl;
+#endif
+
+ /**
+ * noise reduction strength
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int noise_reduction;
+
+ /**
+ * Called at the beginning of a frame to get cr buffer for it.
+ * Buffer type (size, hints) must be the same. libavcodec won't check it.
+ * libavcodec will pass previous buffer in pic, function should return
+ * same buffer or new buffer with old frame "painted" into it.
+ * If pic.data[0] == NULL must behave like get_buffer().
+ * if CODEC_CAP_DR1 is not set then reget_buffer() must call
+ * avcodec_default_reget_buffer() instead of providing buffers allocated by
+ * some other means.
+ * - encoding: unused
+ * - decoding: Set by libavcodec, user can override.
+ */
+ int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
+
+ /**
+ * Number of bits which should be loaded into the rc buffer before decoding starts.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int rc_initial_buffer_occupancy;
+
+ /**
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int inter_threshold;
+
+ /**
+ * CODEC_FLAG2_*
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int flags2;
+
+ /**
+ * Simulates errors in the bitstream to test error concealment.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int error_rate;
+
+#if FF_API_ANTIALIAS_ALGO
+ /**
+ * MP3 antialias algorithm, see FF_AA_* below.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ attribute_deprecated int antialias_algo;
+#define FF_AA_AUTO 0
+#define FF_AA_FASTINT 1 //not implemented yet
+#define FF_AA_INT 2
+#define FF_AA_FLOAT 3
+#endif
+
+ /**
+ * quantizer noise shaping
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int quantizer_noise_shaping;
+
+ /**
+ * thread count
+ * is used to decide how many independent tasks should be passed to execute()
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int thread_count;
+
+ /**
+ * The codec may call this to execute several independent things.
+ * It will return only after finishing all tasks.
+ * The user may replace this with some multithreaded implementation,
+ * the default implementation will execute the parts serially.
+ * @param count the number of things to execute
+ * - encoding: Set by libavcodec, user can override.
+ * - decoding: Set by libavcodec, user can override.
+ */
+ int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);
+
+ /**
+ * thread opaque
+ * Can be used by execute() to store some per AVCodecContext stuff.
+ * - encoding: set by execute()
+ * - decoding: set by execute()
+ */
+ void *thread_opaque;
+
+ /**
+ * Motion estimation threshold below which no motion estimation is
+ * performed, but instead the user specified motion vectors are used.
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_threshold;
+
+ /**
+ * Macroblock threshold below which the user specified macroblock types will be used.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_threshold;
+
+ /**
+ * precision of the intra DC coefficient - 8
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int intra_dc_precision;
+
+ /**
+ * noise vs. sse weight for the nsse comparsion function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int nsse_weight;
+
+ /**
+ * Number of macroblock rows at the top which are skipped.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int skip_top;
+
+ /**
+ * Number of macroblock rows at the bottom which are skipped.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int skip_bottom;
+
+ /**
+ * profile
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int profile;
+#define FF_PROFILE_UNKNOWN -99
+#define FF_PROFILE_RESERVED -100
+
+#define FF_PROFILE_AAC_MAIN 0
+#define FF_PROFILE_AAC_LOW 1
+#define FF_PROFILE_AAC_SSR 2
+#define FF_PROFILE_AAC_LTP 3
+
+#define FF_PROFILE_DTS 20
+#define FF_PROFILE_DTS_ES 30
+#define FF_PROFILE_DTS_96_24 40
+#define FF_PROFILE_DTS_HD_HRA 50
+#define FF_PROFILE_DTS_HD_MA 60
+
+#define FF_PROFILE_MPEG2_422 0
+#define FF_PROFILE_MPEG2_HIGH 1
+#define FF_PROFILE_MPEG2_SS 2
+#define FF_PROFILE_MPEG2_SNR_SCALABLE 3
+#define FF_PROFILE_MPEG2_MAIN 4
+#define FF_PROFILE_MPEG2_SIMPLE 5
+
+#define FF_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag
+#define FF_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag
+
+#define FF_PROFILE_H264_BASELINE 66
+#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)
+#define FF_PROFILE_H264_MAIN 77
+#define FF_PROFILE_H264_EXTENDED 88
+#define FF_PROFILE_H264_HIGH 100
+#define FF_PROFILE_H264_HIGH_10 110
+#define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_HIGH_422 122
+#define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_HIGH_444 144
+#define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244
+#define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_CAVLC_444 44
+
+#define FF_PROFILE_VC1_SIMPLE 0
+#define FF_PROFILE_VC1_MAIN 1
+#define FF_PROFILE_VC1_COMPLEX 2
+#define FF_PROFILE_VC1_ADVANCED 3
+
+ /**
+ * level
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int level;
+#define FF_LEVEL_UNKNOWN -99
+
+ /**
+ * low resolution decoding, 1-> 1/2 size, 2->1/4 size
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int lowres;
+
+ /**
+ * Bitstream width / height, may be different from width/height if lowres
+ * or other things are used.
+ * - encoding: unused
+ * - decoding: Set by user before init if known. Codec should override / dynamically change if needed.
+ */
+ int coded_width, coded_height;
+
+ /**
+ * frame skip threshold
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int frame_skip_threshold;
+
+ /**
+ * frame skip factor
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int frame_skip_factor;
+
+ /**
+ * frame skip exponent
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int frame_skip_exp;
+
+ /**
+ * frame skip comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int frame_skip_cmp;
+
+ /**
+ * Border processing masking, raises the quantizer for mbs on the borders
+ * of the picture.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float border_masking;
+
+ /**
+ * minimum MB lagrange multipler
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_lmin;
+
+ /**
+ * maximum MB lagrange multipler
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_lmax;
+
+ /**
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_penalty_compensation;
+
+ /**
+ *
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ enum AVDiscard skip_loop_filter;
+
+ /**
+ *
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ enum AVDiscard skip_idct;
+
+ /**
+ *
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ enum AVDiscard skip_frame;
+
+ /**
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int bidir_refine;
+
+ /**
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int brd_scale;
+
+ /**
+ * constant rate factor - quality-based VBR - values ~correspond to qps
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float crf;
+
+ /**
+ * constant quantization parameter rate control method
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int cqp;
+
+ /**
+ * minimum GOP size
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int keyint_min;
+
+ /**
+ * number of reference frames
+ * - encoding: Set by user.
+ * - decoding: Set by lavc.
+ */
+ int refs;
+
+ /**
+ * chroma qp offset from luma
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int chromaoffset;
+
+ /**
+ * Influences how often B-frames are used.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int bframebias;
+
+ /**
+ * trellis RD quantization
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int trellis;
+
+ /**
+ * Reduce fluctuations in qp (before curve compression).
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float complexityblur;
+
+ /**
+ * in-loop deblocking filter alphac0 parameter
+ * alpha is in the range -6...6
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int deblockalpha;
+
+ /**
+ * in-loop deblocking filter beta parameter
+ * beta is in the range -6...6
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int deblockbeta;
+
+ /**
+ * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int partitions;
+#define X264_PART_I4X4 0x001 /* Analyze i4x4 */
+#define X264_PART_I8X8 0x002 /* Analyze i8x8 (requires 8x8 transform) */
+#define X264_PART_P8X8 0x010 /* Analyze p16x8, p8x16 and p8x8 */
+#define X264_PART_P4X4 0x020 /* Analyze p8x4, p4x8, p4x4 */
+#define X264_PART_B8X8 0x100 /* Analyze b16x8, b8x16 and b8x8 */
+
+ /**
+ * direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int directpred;
+
+ /**
+ * Audio cutoff bandwidth (0 means "automatic")
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int cutoff;
+
+ /**
+ * Multiplied by qscale for each frame and added to scene_change_score.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int scenechange_factor;
+
+ /**
+ *
+ * Note: Value depends upon the compare function used for fullpel ME.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mv0_threshold;
+
+ /**
+ * Adjusts sensitivity of b_frame_strategy 1.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int b_sensitivity;
+
+ /**
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int compression_level;
+#define FF_COMPRESSION_DEFAULT -1
+
+ /**
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int min_prediction_order;
+
+ /**
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int max_prediction_order;
+
+#if FF_API_FLAC_GLOBAL_OPTS
+ /**
+ * @name FLAC options
+ * @deprecated Use FLAC encoder private options instead.
+ * @{
+ */
+
+ /**
+ * LPC coefficient precision - used by FLAC encoder
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ attribute_deprecated int lpc_coeff_precision;
+
+ /**
+ * search method for selecting prediction order
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ attribute_deprecated int prediction_order_method;
+
+ /**
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ attribute_deprecated int min_partition_order;
+
+ /**
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ attribute_deprecated int max_partition_order;
+ /**
+ * @}
+ */
+#endif
+
+ /**
+ * GOP timecode frame start number, in non drop frame format
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int64_t timecode_frame_start;
+
+#if FF_API_REQUEST_CHANNELS
+ /**
+ * Decoder should decode to this many channels if it can (0 for default)
+ * - encoding: unused
+ * - decoding: Set by user.
+ * @deprecated Deprecated in favor of request_channel_layout.
+ */
+ int request_channels;
+#endif
+
+ /**
+ * Percentage of dynamic range compression to be applied by the decoder.
+ * The default value is 1.0, corresponding to full compression.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ float drc_scale;
+
+ /**
+ * opaque 64bit number (generally a PTS) that will be reordered and
+ * output in AVFrame.reordered_opaque
+ * @deprecated in favor of pkt_pts
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int64_t reordered_opaque;
+
+ /**
+ * Bits per sample/pixel of internal libavcodec pixel/sample format.
+ * - encoding: set by user.
+ * - decoding: set by libavcodec.
+ */
+ int bits_per_raw_sample;
+
+ /**
+ * Audio channel layout.
+ * - encoding: set by user.
+ * - decoding: set by libavcodec.
+ */
+ int64_t channel_layout;
+
+ /**
+ * Request decoder to use this channel layout if it can (0 for default)
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int64_t request_channel_layout;
+
+ /**
+ * Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow.
+ * - encoding: Set by user.
+ * - decoding: unused.
+ */
+ float rc_max_available_vbv_use;
+
+ /**
+ * Ratecontrol attempt to use, at least, <value> times the amount needed to prevent a vbv overflow.
+ * - encoding: Set by user.
+ * - decoding: unused.
+ */
+ float rc_min_vbv_overflow_use;
+
+ /**
+ * Hardware accelerator in use
+ * - encoding: unused.
+ * - decoding: Set by libavcodec
+ */
+ struct AVHWAccel *hwaccel;
+
+ /**
+ * For some codecs, the time base is closer to the field rate than the frame rate.
+ * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration
+ * if no telecine is used ...
+ *
+ * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2.
+ */
+ int ticks_per_frame;
+
+ /**
+ * Hardware accelerator context.
+ * For some hardware accelerators, a global context needs to be
+ * provided by the user. In that case, this holds display-dependent
+ * data Libav cannot instantiate itself. Please refer to the
+ * Libav HW accelerator documentation to know how to fill this
+ * is. e.g. for VA API, this is a struct vaapi_context.
+ * - encoding: unused
+ * - decoding: Set by user
+ */
+ void *hwaccel_context;
+
+ /**
+ * Chromaticity coordinates of the source primaries.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVColorPrimaries color_primaries;
+
+ /**
+ * Color Transfer Characteristic.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVColorTransferCharacteristic color_trc;
+
+ /**
+ * YUV colorspace type.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVColorSpace colorspace;
+
+ /**
+ * MPEG vs JPEG YUV range.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVColorRange color_range;
+
+ /**
+ * This defines the location of chroma samples.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVChromaLocation chroma_sample_location;
+
+ /**
+ * The codec may call this to execute several independent things.
+ * It will return only after finishing all tasks.
+ * The user may replace this with some multithreaded implementation,
+ * the default implementation will execute the parts serially.
+ * Also see avcodec_thread_init and e.g. the --enable-pthread configure option.
+ * @param c context passed also to func
+ * @param count the number of things to execute
+ * @param arg2 argument passed unchanged to func
+ * @param ret return values of executed functions, must have space for "count" values. May be NULL.
+ * @param func function that will be called count times, with jobnr from 0 to count-1.
+ * threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no
+ * two instances of func executing at the same time will have the same threadnr.
+ * @return always 0 currently, but code should handle a future improvement where when any call to func
+ * returns < 0 no further calls to func may be done and < 0 is returned.
+ * - encoding: Set by libavcodec, user can override.
+ * - decoding: Set by libavcodec, user can override.
+ */
+ int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count);
+
+ /**
+ * explicit P-frame weighted prediction analysis method
+ * 0: off
+ * 1: fast blind weighting (one reference duplicate with -1 offset)
+ * 2: smart weighting (full fade detection analysis)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int weighted_p_pred;
+
+ /**
+ * AQ mode
+ * 0: Disabled
+ * 1: Variance AQ (complexity mask)
+ * 2: Auto-variance AQ (experimental)
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ int aq_mode;
+
+ /**
+ * AQ strength
+ * Reduces blocking and blurring in flat and textured areas.
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ float aq_strength;
+
+ /**
+ * PSY RD
+ * Strength of psychovisual optimization
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ float psy_rd;
+
+ /**
+ * PSY trellis
+ * Strength of psychovisual optimization
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ float psy_trellis;
+
+ /**
+ * RC lookahead
+ * Number of frames for frametype and ratecontrol lookahead
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ int rc_lookahead;
+
+ /**
+ * Constant rate factor maximum
+ * With CRF encoding mode and VBV restrictions enabled, prevents quality from being worse
+ * than crf_max, even if doing so would violate VBV restrictions.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float crf_max;
+
+ int log_level_offset;
+
+#if FF_API_FLAC_GLOBAL_OPTS
+ /**
+ * Determines which LPC analysis algorithm to use.
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ attribute_deprecated enum AVLPCType lpc_type;
+
+ /**
+ * Number of passes to use for Cholesky factorization during LPC analysis
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ attribute_deprecated int lpc_passes;
+#endif
+
+ /**
+ * Number of slices.
+ * Indicates number of picture subdivisions. Used for parallelized
+ * decoding.
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ int slices;
+
+ /**
+ * Header containing style information for text subtitles.
+ * For SUBTITLE_ASS subtitle type, it should contain the whole ASS
+ * [Script Info] and [V4+ Styles] section, plus the [Events] line and
+ * the Format line following. It shouldn't include any Dialogue line.
+ * - encoding: Set/allocated/freed by user (before avcodec_open())
+ * - decoding: Set/allocated/freed by libavcodec (by avcodec_open())
+ */
+ uint8_t *subtitle_header;
+ int subtitle_header_size;
+
+ /**
+ * Current packet as passed into the decoder, to avoid having
+ * to pass the packet into every function. Currently only valid
+ * inside lavc and get/release_buffer callbacks.
+ * - decoding: set by avcodec_decode_*, read by get_buffer() for setting pkt_pts
+ * - encoding: unused
+ */
+ AVPacket *pkt;
+
+ /**
+ * Whether this is a copy of the context which had init() called on it.
+ * This is used by multithreading - shared tables and picture pointers
+ * should be freed from the original context only.
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ int is_copy;
+
+ /**
+ * Which multithreading methods to use.
+ * Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread,
+ * so clients which cannot provide future frames should not use it.
+ *
+ * - encoding: Set by user, otherwise the default is used.
+ * - decoding: Set by user, otherwise the default is used.
+ */
+ int thread_type;
+#define FF_THREAD_FRAME 1 //< Decode more than one frame at once
+#define FF_THREAD_SLICE 2 //< Decode more than one part of a single frame at once
+
+ /**
+ * Which multithreading methods are in use by the codec.
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ int active_thread_type;
+
+ /**
+ * Set by the client if its custom get_buffer() callback can be called
+ * from another thread, which allows faster multithreaded decoding.
+ * draw_horiz_band() will be called from other threads regardless of this setting.
+ * Ignored if the default get_buffer() is used.
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int thread_safe_callbacks;
+
+ /**
+ * VBV delay coded in the last frame (in periods of a 27 MHz clock).
+ * Used for compliant TS muxing.
+ * - encoding: Set by libavcodec.
+ * - decoding: unused.
+ */
+ uint64_t vbv_delay;
+
+ /**
+ * Type of service that the audio stream conveys.
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ enum AVAudioServiceType audio_service_type;
+
+ /**
+ * Used to request a sample format from the decoder.
+ * - encoding: unused.
+ * - decoding: Set by user.
+ */
+ enum AVSampleFormat request_sample_fmt;
+} AVCodecContext;
+
+/**
+ * AVProfile.
+ */
+typedef struct AVProfile {
+ int profile;
+ const char *name; ///< short name for the profile
+} AVProfile;
+
+/**
+ * AVCodec.
+ */
+typedef struct AVCodec {
+ /**
+ * Name of the codec implementation.
+ * The name is globally unique among encoders and among decoders (but an
+ * encoder and a decoder can share the same name).
+ * This is the primary way to find a codec from the user perspective.
+ */
+ const char *name;
+ enum AVMediaType type;
+ enum CodecID id;
+ int priv_data_size;
+ int (*init)(AVCodecContext *);
+ int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
+ int (*close)(AVCodecContext *);
+ int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt);
+ /**
+ * Codec capabilities.
+ * see CODEC_CAP_*
+ */
+ int capabilities;
+ struct AVCodec *next;
+ /**
+ * Flush buffers.
+ * Will be called when seeking
+ */
+ void (*flush)(AVCodecContext *);
+ const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
+ const enum PixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
+ /**
+ * Descriptive name for the codec, meant to be more human readable than name.
+ * You should use the NULL_IF_CONFIG_SMALL() macro to define it.
+ */
+ const char *long_name;
+ const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
+ const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1
+ const int64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0
+ uint8_t max_lowres; ///< maximum value for lowres supported by the decoder
+ const AVClass *priv_class; ///< AVClass for the private context
+ const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
+
+ /**
+ * @name Frame-level threading support functions
+ * @{
+ */
+ /**
+ * If defined, called on thread contexts when they are created.
+ * If the codec allocates writable tables in init(), re-allocate them here.
+ * priv_data will be set to a copy of the original.
+ */
+ int (*init_thread_copy)(AVCodecContext *);
+ /**
+ * Copy necessary context variables from a previous thread context to the current one.
+ * If not defined, the next thread will start automatically; otherwise, the codec
+ * must call ff_thread_finish_setup().
+ *
+ * dst and src will (rarely) point to the same context, in which case memcpy should be skipped.
+ */
+ int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src);
+ /** @} */
+} AVCodec;
+
+/**
+ * AVHWAccel.
+ */
+typedef struct AVHWAccel {
+ /**
+ * Name of the hardware accelerated codec.
+ * The name is globally unique among encoders and among decoders (but an
+ * encoder and a decoder can share the same name).
+ */
+ const char *name;
+
+ /**
+ * Type of codec implemented by the hardware accelerator.
+ *
+ * See AVMEDIA_TYPE_xxx
+ */
+ enum AVMediaType type;
+
+ /**
+ * Codec implemented by the hardware accelerator.
+ *
+ * See CODEC_ID_xxx
+ */
+ enum CodecID id;
+
+ /**
+ * Supported pixel format.
+ *
+ * Only hardware accelerated formats are supported here.
+ */
+ enum PixelFormat pix_fmt;
+
+ /**
+ * Hardware accelerated codec capabilities.
+ * see FF_HWACCEL_CODEC_CAP_*
+ */
+ int capabilities;
+
+ struct AVHWAccel *next;
+
+ /**
+ * Called at the beginning of each frame or field picture.
+ *
+ * Meaningful frame information (codec specific) is guaranteed to
+ * be parsed at this point. This function is mandatory.
+ *
+ * Note that buf can be NULL along with buf_size set to 0.
+ * Otherwise, this means the whole frame is available at this point.
+ *
+ * @param avctx the codec context
+ * @param buf the frame data buffer base
+ * @param buf_size the size of the frame in bytes
+ * @return zero if successful, a negative value otherwise
+ */
+ int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
+
+ /**
+ * Callback for each slice.
+ *
+ * Meaningful slice information (codec specific) is guaranteed to
+ * be parsed at this point. This function is mandatory.
+ *
+ * @param avctx the codec context
+ * @param buf the slice data buffer base
+ * @param buf_size the size of the slice in bytes
+ * @return zero if successful, a negative value otherwise
+ */
+ int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
+
+ /**
+ * Called at the end of each frame or field picture.
+ *
+ * The whole picture is parsed at this point and can now be sent
+ * to the hardware accelerator. This function is mandatory.
+ *
+ * @param avctx the codec context
+ * @return zero if successful, a negative value otherwise
+ */
+ int (*end_frame)(AVCodecContext *avctx);
+
+ /**
+ * Size of HW accelerator private data.
+ *
+ * Private data is allocated with av_mallocz() before
+ * AVCodecContext.get_buffer() and deallocated after
+ * AVCodecContext.release_buffer().
+ */
+ int priv_data_size;
+} AVHWAccel;
+
+/**
+ * four components are given, that's all.
+ * the last component is alpha
+ */
+typedef struct AVPicture {
+ uint8_t *data[4];
+ int linesize[4]; ///< number of bytes per line
+} AVPicture;
+
+#if FF_API_PALETTE_CONTROL
+/**
+ * AVPaletteControl
+ * This structure defines a method for communicating palette changes
+ * between and demuxer and a decoder.
+ *
+ * @deprecated Use AVPacket to send palette changes instead.
+ * This is totally broken.
+ */
+#define AVPALETTE_SIZE 1024
+#define AVPALETTE_COUNT 256
+typedef struct AVPaletteControl {
+
+ /* Demuxer sets this to 1 to indicate the palette has changed;
+ * decoder resets to 0. */
+ int palette_changed;
+
+ /* 4-byte ARGB palette entries, stored in native byte order; note that
+ * the individual palette components should be on a 8-bit scale; if
+ * the palette data comes from an IBM VGA native format, the component
+ * data is probably 6 bits in size and needs to be scaled. */
+ unsigned int palette[AVPALETTE_COUNT];
+
+} AVPaletteControl attribute_deprecated;
+#endif
+
+enum AVSubtitleType {
+ SUBTITLE_NONE,
+
+ SUBTITLE_BITMAP, ///< A bitmap, pict will be set
+
+ /**
+ * Plain text, the text field must be set by the decoder and is
+ * authoritative. ass and pict fields may contain approximations.
+ */
+ SUBTITLE_TEXT,
+
+ /**
+ * Formatted text, the ass field must be set by the decoder and is
+ * authoritative. pict and text fields may contain approximations.
+ */
+ SUBTITLE_ASS,
+};
+
+typedef struct AVSubtitleRect {
+ int x; ///< top left corner of pict, undefined when pict is not set
+ int y; ///< top left corner of pict, undefined when pict is not set
+ int w; ///< width of pict, undefined when pict is not set
+ int h; ///< height of pict, undefined when pict is not set
+ int nb_colors; ///< number of colors in pict, undefined when pict is not set
+
+ /**
+ * data+linesize for the bitmap of this subtitle.
+ * can be set for text/ass as well once they where rendered
+ */
+ AVPicture pict;
+ enum AVSubtitleType type;
+
+ char *text; ///< 0 terminated plain UTF-8 text
+
+ /**
+ * 0 terminated ASS/SSA compatible event line.
+ * The pressentation of this is unaffected by the other values in this
+ * struct.
+ */
+ char *ass;
+} AVSubtitleRect;
+
+typedef struct AVSubtitle {
+ uint16_t format; /* 0 = graphics */
+ uint32_t start_display_time; /* relative to packet pts, in ms */
+ uint32_t end_display_time; /* relative to packet pts, in ms */
+ unsigned num_rects;
+ AVSubtitleRect **rects;
+ int64_t pts; ///< Same as packet pts, in AV_TIME_BASE
+} AVSubtitle;
+
+/* packet functions */
+
+/**
+ * @deprecated use NULL instead
+ */
+attribute_deprecated void av_destruct_packet_nofree(AVPacket *pkt);
+
+/**
+ * Default packet destructor.
+ */
+void av_destruct_packet(AVPacket *pkt);
+
+/**
+ * Initialize optional fields of a packet with default values.
+ *
+ * @param pkt packet
+ */
+void av_init_packet(AVPacket *pkt);
+
+/**
+ * Allocate the payload of a packet and initialize its fields with
+ * default values.
+ *
+ * @param pkt packet
+ * @param size wanted payload size
+ * @return 0 if OK, AVERROR_xxx otherwise
+ */
+int av_new_packet(AVPacket *pkt, int size);
+
+/**
+ * Reduce packet size, correctly zeroing padding
+ *
+ * @param pkt packet
+ * @param size new size
+ */
+void av_shrink_packet(AVPacket *pkt, int size);
+
+/**
+ * Increase packet size, correctly zeroing padding
+ *
+ * @param pkt packet
+ * @param grow_by number of bytes by which to increase the size of the packet
+ */
+int av_grow_packet(AVPacket *pkt, int grow_by);
+
+/**
+ * @warning This is a hack - the packet memory allocation stuff is broken. The
+ * packet is allocated if it was not really allocated.
+ */
+int av_dup_packet(AVPacket *pkt);
+
+/**
+ * Free a packet.
+ *
+ * @param pkt packet to free
+ */
+void av_free_packet(AVPacket *pkt);
+
+/**
+ * Allocate new information of a packet.
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param size side information size
+ * @return pointer to fresh allocated data or NULL otherwise
+ */
+uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+ int size);
+
+/**
+ * Get side information from packet.
+ *
+ * @param pkt packet
+ * @param type desired side information type
+ * @param size pointer for side information size to store (optional)
+ * @return pointer to data if present or NULL otherwise
+ */
+uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+ int *size);
+
+/* resample.c */
+
+struct ReSampleContext;
+struct AVResampleContext;
+
+typedef struct ReSampleContext ReSampleContext;
+
+/**
+ * Initialize audio resampling context.
+ *
+ * @param output_channels number of output channels
+ * @param input_channels number of input channels
+ * @param output_rate output sample rate
+ * @param input_rate input sample rate
+ * @param sample_fmt_out requested output sample format
+ * @param sample_fmt_in input sample format
+ * @param filter_length length of each FIR filter in the filterbank relative to the cutoff frequency
+ * @param log2_phase_count log2 of the number of entries in the polyphase filterbank
+ * @param linear if 1 then the used FIR filter will be linearly interpolated
+ between the 2 closest, if 0 the closest will be used
+ * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
+ * @return allocated ReSampleContext, NULL if error occured
+ */
+ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
+ int output_rate, int input_rate,
+ enum AVSampleFormat sample_fmt_out,
+ enum AVSampleFormat sample_fmt_in,
+ int filter_length, int log2_phase_count,
+ int linear, double cutoff);
+
+int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
+
+/**
+ * Free resample context.
+ *
+ * @param s a non-NULL pointer to a resample context previously
+ * created with av_audio_resample_init()
+ */
+void audio_resample_close(ReSampleContext *s);
+
+
+/**
+ * Initialize an audio resampler.
+ * Note, if either rate is not an integer then simply scale both rates up so they are.
+ * @param filter_length length of each FIR filter in the filterbank relative to the cutoff freq
+ * @param log2_phase_count log2 of the number of entries in the polyphase filterbank
+ * @param linear If 1 then the used FIR filter will be linearly interpolated
+ between the 2 closest, if 0 the closest will be used
+ * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
+ */
+struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
+
+/**
+ * Resample an array of samples using a previously configured context.
+ * @param src an array of unconsumed samples
+ * @param consumed the number of samples of src which have been consumed are returned here
+ * @param src_size the number of unconsumed samples available
+ * @param dst_size the amount of space in samples available in dst
+ * @param update_ctx If this is 0 then the context will not be modified, that way several channels can be resampled with the same context.
+ * @return the number of samples written in dst or -1 if an error occurred
+ */
+int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
+
+
+/**
+ * Compensate samplerate/timestamp drift. The compensation is done by changing
+ * the resampler parameters, so no audible clicks or similar distortions occur
+ * @param compensation_distance distance in output samples over which the compensation should be performed
+ * @param sample_delta number of output samples which should be output less
+ *
+ * example: av_resample_compensate(c, 10, 500)
+ * here instead of 510 samples only 500 samples would be output
+ *
+ * note, due to rounding the actual compensation might be slightly different,
+ * especially if the compensation_distance is large and the in_rate used during init is small
+ */
+void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
+void av_resample_close(struct AVResampleContext *c);
+
+/**
+ * Allocate memory for a picture. Call avpicture_free() to free it.
+ *
+ * \see avpicture_fill()
+ *
+ * @param picture the picture to be filled in
+ * @param pix_fmt the format of the picture
+ * @param width the width of the picture
+ * @param height the height of the picture
+ * @return zero if successful, a negative value if not
+ */
+int avpicture_alloc(AVPicture *picture, enum PixelFormat pix_fmt, int width, int height);
+
+/**
+ * Free a picture previously allocated by avpicture_alloc().
+ * The data buffer used by the AVPicture is freed, but the AVPicture structure
+ * itself is not.
+ *
+ * @param picture the AVPicture to be freed
+ */
+void avpicture_free(AVPicture *picture);
+
+/**
+ * Fill in the AVPicture fields.
+ * The fields of the given AVPicture are filled in by using the 'ptr' address
+ * which points to the image data buffer. Depending on the specified picture
+ * format, one or multiple image data pointers and line sizes will be set.
+ * If a planar format is specified, several pointers will be set pointing to
+ * the different picture planes and the line sizes of the different planes
+ * will be stored in the lines_sizes array.
+ * Call with ptr == NULL to get the required size for the ptr buffer.
+ *
+ * To allocate the buffer and fill in the AVPicture fields in one call,
+ * use avpicture_alloc().
+ *
+ * @param picture AVPicture whose fields are to be filled in
+ * @param ptr Buffer which will contain or contains the actual image data
+ * @param pix_fmt The format in which the picture data is stored.
+ * @param width the width of the image in pixels
+ * @param height the height of the image in pixels
+ * @return size of the image data in bytes
+ */
+int avpicture_fill(AVPicture *picture, uint8_t *ptr,
+ enum PixelFormat pix_fmt, int width, int height);
+
+/**
+ * Copy pixel data from an AVPicture into a buffer.
+ * The data is stored compactly, without any gaps for alignment or padding
+ * which may be applied by avpicture_fill().
+ *
+ * \see avpicture_get_size()
+ *
+ * @param[in] src AVPicture containing image data
+ * @param[in] pix_fmt The format in which the picture data is stored.
+ * @param[in] width the width of the image in pixels.
+ * @param[in] height the height of the image in pixels.
+ * @param[out] dest A buffer into which picture data will be copied.
+ * @param[in] dest_size The size of 'dest'.
+ * @return The number of bytes written to dest, or a negative value (error code) on error.
+ */
+int avpicture_layout(const AVPicture* src, enum PixelFormat pix_fmt, int width, int height,
+ unsigned char *dest, int dest_size);
+
+/**
+ * Calculate the size in bytes that a picture of the given width and height
+ * would occupy if stored in the given picture format.
+ * Note that this returns the size of a compact representation as generated
+ * by avpicture_layout(), which can be smaller than the size required for e.g.
+ * avpicture_fill().
+ *
+ * @param pix_fmt the given picture format
+ * @param width the width of the image
+ * @param height the height of the image
+ * @return Image data size in bytes or -1 on error (e.g. too large dimensions).
+ */
+int avpicture_get_size(enum PixelFormat pix_fmt, int width, int height);
+void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *v_shift);
+
+#if FF_API_GET_PIX_FMT_NAME
+/**
+ * @deprecated Deprecated in favor of av_get_pix_fmt_name().
+ */
+attribute_deprecated
+const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt);
+#endif
+
+void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
+
+/**
+ * Return a value representing the fourCC code associated to the
+ * pixel format pix_fmt, or 0 if no associated fourCC code can be
+ * found.
+ */
+unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat pix_fmt);
+
+/**
+ * Put a string representing the codec tag codec_tag in buf.
+ *
+ * @param buf_size size in bytes of buf
+ * @return the length of the string that would have been generated if
+ * enough space had been available, excluding the trailing null
+ */
+size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag);
+
+#define FF_LOSS_RESOLUTION 0x0001 /**< loss due to resolution change */
+#define FF_LOSS_DEPTH 0x0002 /**< loss due to color depth change */
+#define FF_LOSS_COLORSPACE 0x0004 /**< loss due to color space conversion */
+#define FF_LOSS_ALPHA 0x0008 /**< loss of alpha bits */
+#define FF_LOSS_COLORQUANT 0x0010 /**< loss due to color quantization */
+#define FF_LOSS_CHROMA 0x0020 /**< loss of chroma (e.g. RGB to gray conversion) */
+
+/**
+ * Compute what kind of losses will occur when converting from one specific
+ * pixel format to another.
+ * When converting from one pixel format to another, information loss may occur.
+ * For example, when converting from RGB24 to GRAY, the color information will
+ * be lost. Similarly, other losses occur when converting from some formats to
+ * other formats. These losses can involve loss of chroma, but also loss of
+ * resolution, loss of color depth, loss due to the color space conversion, loss
+ * of the alpha bits or loss due to color quantization.
+ * avcodec_get_fix_fmt_loss() informs you about the various types of losses
+ * which will occur when converting from one pixel format to another.
+ *
+ * @param[in] dst_pix_fmt destination pixel format
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @return Combination of flags informing you what kind of losses will occur.
+ */
+int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_pix_fmt,
+ int has_alpha);
+
+/**
+ * Find the best pixel format to convert to given a certain source pixel
+ * format. When converting from one pixel format to another, information loss
+ * may occur. For example, when converting from RGB24 to GRAY, the color
+ * information will be lost. Similarly, other losses occur when converting from
+ * some formats to other formats. avcodec_find_best_pix_fmt() searches which of
+ * the given pixel formats should be used to suffer the least amount of loss.
+ * The pixel formats from which it chooses one, are determined by the
+ * pix_fmt_mask parameter.
+ *
+ * @code
+ * src_pix_fmt = PIX_FMT_YUV420P;
+ * pix_fmt_mask = (1 << PIX_FMT_YUV422P) || (1 << PIX_FMT_RGB24);
+ * dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss);
+ * @endcode
+ *
+ * @param[in] pix_fmt_mask bitmask determining which pixel format to choose from
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur.
+ * @return The best pixel format to convert to or -1 if none was found.
+ */
+enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt,
+ int has_alpha, int *loss_ptr);
+
+#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
+#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
+
+/**
+ * Tell if an image really has transparent alpha values.
+ * @return ored mask of FF_ALPHA_xxx constants
+ */
+int img_get_alpha_info(const AVPicture *src,
+ enum PixelFormat pix_fmt, int width, int height);
+
+/* deinterlace a picture */
+/* deinterlace - if not supported return -1 */
+int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
+ enum PixelFormat pix_fmt, int width, int height);
+
+/* external high level API */
+
+/**
+ * If c is NULL, returns the first registered codec,
+ * if c is non-NULL, returns the next registered codec after c,
+ * or NULL if c is the last one.
+ */
+AVCodec *av_codec_next(AVCodec *c);
+
+/**
+ * Return the LIBAVCODEC_VERSION_INT constant.
+ */
+unsigned avcodec_version(void);
+
+/**
+ * Return the libavcodec build-time configuration.
+ */
+const char *avcodec_configuration(void);
+
+/**
+ * Return the libavcodec license.
+ */
+const char *avcodec_license(void);
+
+/**
+ * Initialize libavcodec.
+ * If called more than once, does nothing.
+ *
+ * @warning This function must be called before any other libavcodec
+ * function.
+ *
+ * @warning This function is not thread-safe.
+ */
+void avcodec_init(void);
+
+/**
+ * Register the codec codec and initialize libavcodec.
+ *
+ * @see avcodec_init(), avcodec_register_all()
+ */
+void avcodec_register(AVCodec *codec);
+
+/**
+ * Find a registered encoder with a matching codec ID.
+ *
+ * @param id CodecID of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_encoder(enum CodecID id);
+
+/**
+ * Find a registered encoder with the specified name.
+ *
+ * @param name name of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_encoder_by_name(const char *name);
+
+/**
+ * Find a registered decoder with a matching codec ID.
+ *
+ * @param id CodecID of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_decoder(enum CodecID id);
+
+/**
+ * Find a registered decoder with the specified name.
+ *
+ * @param name name of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_decoder_by_name(const char *name);
+void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
+
+/**
+ * Return a name for the specified profile, if available.
+ *
+ * @param codec the codec that is searched for the given profile
+ * @param profile the profile value for which a name is requested
+ * @return A name for the profile if found, NULL otherwise.
+ */
+const char *av_get_profile_name(const AVCodec *codec, int profile);
+
+/**
+ * Set the fields of the given AVCodecContext to default values.
+ *
+ * @param s The AVCodecContext of which the fields should be set to default values.
+ */
+void avcodec_get_context_defaults(AVCodecContext *s);
+
+/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ * we WILL change its arguments and name a few times! */
+void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType);
+
+/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ * we WILL change its arguments and name a few times! */
+int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec);
+
+/**
+ * Allocate an AVCodecContext and set its fields to default values. The
+ * resulting struct can be deallocated by simply calling av_free().
+ *
+ * @return An AVCodecContext filled with default values or NULL on failure.
+ * @see avcodec_get_context_defaults
+ */
+AVCodecContext *avcodec_alloc_context(void);
+
+/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ * we WILL change its arguments and name a few times! */
+AVCodecContext *avcodec_alloc_context2(enum AVMediaType);
+
+/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ * we WILL change its arguments and name a few times! */
+AVCodecContext *avcodec_alloc_context3(AVCodec *codec);
+
+/**
+ * Copy the settings of the source AVCodecContext into the destination
+ * AVCodecContext. The resulting destination codec context will be
+ * unopened, i.e. you are required to call avcodec_open() before you
+ * can use this AVCodecContext to decode/encode video/audio data.
+ *
+ * @param dest target codec context, should be initialized with
+ * avcodec_alloc_context(), but otherwise uninitialized
+ * @param src source codec context
+ * @return AVERROR() on error (e.g. memory allocation error), 0 on success
+ */
+int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);
+
+/**
+ * Set the fields of the given AVFrame to default values.
+ *
+ * @param pic The AVFrame of which the fields should be set to default values.
+ */
+void avcodec_get_frame_defaults(AVFrame *pic);
+
+/**
+ * Allocate an AVFrame and set its fields to default values. The resulting
+ * struct can be deallocated by simply calling av_free().
+ *
+ * @return An AVFrame filled with default values or NULL on failure.
+ * @see avcodec_get_frame_defaults
+ */
+AVFrame *avcodec_alloc_frame(void);
+
+int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
+void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
+int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
+
+/**
+ * Return the amount of padding in pixels which the get_buffer callback must
+ * provide around the edge of the image for codecs which do not have the
+ * CODEC_FLAG_EMU_EDGE flag.
+ *
+ * @return Required padding in pixels.
+ */
+unsigned avcodec_get_edge_width(void);
+/**
+ * Modify width and height values so that they will result in a memory
+ * buffer that is acceptable for the codec if you do not use any horizontal
+ * padding.
+ *
+ * May only be used if a codec with CODEC_CAP_DR1 has been opened.
+ * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased
+ * according to avcodec_get_edge_width() before.
+ */
+void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
+/**
+ * Modify width and height values so that they will result in a memory
+ * buffer that is acceptable for the codec if you also ensure that all
+ * line sizes are a multiple of the respective linesize_align[i].
+ *
+ * May only be used if a codec with CODEC_CAP_DR1 has been opened.
+ * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased
+ * according to avcodec_get_edge_width() before.
+ */
+void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
+ int linesize_align[4]);
+
+enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
+
+#if FF_API_THREAD_INIT
+/**
+ * @deprecated Set s->thread_count before calling avcodec_open() instead of calling this.
+ */
+attribute_deprecated
+int avcodec_thread_init(AVCodecContext *s, int thread_count);
+#endif
+
+int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size);
+int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count);
+//FIXME func typedef
+
+/**
+ * Initialize the AVCodecContext to use the given AVCodec. Prior to using this
+ * function the context has to be allocated.
+ *
+ * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(),
+ * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for
+ * retrieving a codec.
+ *
+ * @warning This function is not thread safe!
+ *
+ * @code
+ * avcodec_register_all();
+ * codec = avcodec_find_decoder(CODEC_ID_H264);
+ * if (!codec)
+ * exit(1);
+ *
+ * context = avcodec_alloc_context();
+ *
+ * if (avcodec_open(context, codec) < 0)
+ * exit(1);
+ * @endcode
+ *
+ * @param avctx The context which will be set up to use the given codec.
+ * @param codec The codec to use within the context.
+ * @return zero on success, a negative value on error
+ * @see avcodec_alloc_context, avcodec_find_decoder, avcodec_find_encoder, avcodec_close
+ */
+int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
+
+/**
+ * Decode the audio frame of size avpkt->size from avpkt->data into samples.
+ * Some decoders may support multiple frames in a single AVPacket, such
+ * decoders would then just decode the first frame. In this case,
+ * avcodec_decode_audio3 has to be called again with an AVPacket that contains
+ * the remaining data in order to decode the second frame etc.
+ * If no frame
+ * could be outputted, frame_size_ptr is zero. Otherwise, it is the
+ * decompressed frame size in bytes.
+ *
+ * @warning You must set frame_size_ptr to the allocated size of the
+ * output buffer before calling avcodec_decode_audio3().
+ *
+ * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
+ * the actual read bytes because some optimized bitstream readers read 32 or 64
+ * bits at once and could read over the end.
+ *
+ * @warning The end of the input buffer avpkt->data should be set to 0 to ensure that
+ * no overreading happens for damaged MPEG streams.
+ *
+ * @note You might have to align the input buffer avpkt->data and output buffer
+ * samples. The alignment requirements depend on the CPU: On some CPUs it isn't
+ * necessary at all, on others it won't work at all if not aligned and on others
+ * it will work but it will have an impact on performance.
+ *
+ * In practice, avpkt->data should have 4 byte alignment at minimum and
+ * samples should be 16 byte aligned unless the CPU doesn't need it
+ * (AltiVec and SSE do).
+ *
+ * @param avctx the codec context
+ * @param[out] samples the output buffer, sample type in avctx->sample_fmt
+ * @param[in,out] frame_size_ptr the output buffer size in bytes
+ * @param[in] avpkt The input AVPacket containing the input buffer.
+ * You can create such packet with av_init_packet() and by then setting
+ * data and size, some decoders might in addition need other fields.
+ * All decoders are designed to use the least fields possible though.
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame data was decompressed (used) from the input AVPacket.
+ */
+int avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
+ int *frame_size_ptr,
+ AVPacket *avpkt);
+
+/**
+ * Decode the video frame of size avpkt->size from avpkt->data into picture.
+ * Some decoders may support multiple frames in a single AVPacket, such
+ * decoders would then just decode the first frame.
+ *
+ * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
+ * the actual read bytes because some optimized bitstream readers read 32 or 64
+ * bits at once and could read over the end.
+ *
+ * @warning The end of the input buffer buf should be set to 0 to ensure that
+ * no overreading happens for damaged MPEG streams.
+ *
+ * @note You might have to align the input buffer avpkt->data.
+ * The alignment requirements depend on the CPU: on some CPUs it isn't
+ * necessary at all, on others it won't work at all if not aligned and on others
+ * it will work but it will have an impact on performance.
+ *
+ * In practice, avpkt->data should have 4 byte alignment at minimum.
+ *
+ * @note Some codecs have a delay between input and output, these need to be
+ * fed with avpkt->data=NULL, avpkt->size=0 at the end to return the remaining frames.
+ *
+ * @param avctx the codec context
+ * @param[out] picture The AVFrame in which the decoded video frame will be stored.
+ * Use avcodec_alloc_frame to get an AVFrame, the codec will
+ * allocate memory for the actual bitmap.
+ * with default get/release_buffer(), the decoder frees/reuses the bitmap as it sees fit.
+ * with overridden get/release_buffer() (needs CODEC_CAP_DR1) the user decides into what buffer the decoder
+ * decodes and the decoder tells the user once it does not need the data anymore,
+ * the user app can at this point free/reuse/keep the memory as it sees fit.
+ *
+ * @param[in] avpkt The input AVpacket containing the input buffer.
+ * You can create such packet with av_init_packet() and by then setting
+ * data and size, some decoders might in addition need other fields like
+ * flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least
+ * fields possible.
+ * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero.
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame could be decompressed.
+ */
+int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
+ int *got_picture_ptr,
+ AVPacket *avpkt);
+
+/**
+ * Decode a subtitle message.
+ * Return a negative value on error, otherwise return the number of bytes used.
+ * If no subtitle could be decompressed, got_sub_ptr is zero.
+ * Otherwise, the subtitle is stored in *sub.
+ * Note that CODEC_CAP_DR1 is not available for subtitle codecs. This is for
+ * simplicity, because the performance difference is expect to be negligible
+ * and reusing a get_buffer written for video codecs would probably perform badly
+ * due to a potentially very different allocation pattern.
+ *
+ * @param avctx the codec context
+ * @param[out] sub The AVSubtitle in which the decoded subtitle will be stored, must be
+ freed with avsubtitle_free if *got_sub_ptr is set.
+ * @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero.
+ * @param[in] avpkt The input AVPacket containing the input buffer.
+ */
+int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
+ int *got_sub_ptr,
+ AVPacket *avpkt);
+
+/**
+ * Frees all allocated data in the given subtitle struct.
+ *
+ * @param sub AVSubtitle to free.
+ */
+void avsubtitle_free(AVSubtitle *sub);
+
+int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
+ int *data_size_ptr,
+ uint8_t *buf, int buf_size);
+
+/**
+ * Encode an audio frame from samples into buf.
+ *
+ * @note The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large.
+ * However, for PCM audio the user will know how much space is needed
+ * because it depends on the value passed in buf_size as described
+ * below. In that case a lower value can be used.
+ *
+ * @param avctx the codec context
+ * @param[out] buf the output buffer
+ * @param[in] buf_size the output buffer size
+ * @param[in] samples the input buffer containing the samples
+ * The number of samples read from this buffer is frame_size*channels,
+ * both of which are defined in avctx.
+ * For PCM audio the number of samples read from samples is equal to
+ * buf_size * input_sample_size / output_sample_size.
+ * @return On error a negative value is returned, on success zero or the number
+ * of bytes used to encode the data read from the input buffer.
+ */
+int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+ const short *samples);
+
+/**
+ * Encode a video frame from pict into buf.
+ * The input picture should be
+ * stored using a specific format, namely avctx.pix_fmt.
+ *
+ * @param avctx the codec context
+ * @param[out] buf the output buffer for the bitstream of encoded frame
+ * @param[in] buf_size the size of the output buffer in bytes
+ * @param[in] pict the input picture to encode
+ * @return On error a negative value is returned, on success zero or the number
+ * of bytes used from the output buffer.
+ */
+int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+ const AVFrame *pict);
+int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+ const AVSubtitle *sub);
+
+int avcodec_close(AVCodecContext *avctx);
+
+/**
+ * Register all the codecs, parsers and bitstream filters which were enabled at
+ * configuration time. If you do not call this function you can select exactly
+ * which formats you want to support, by using the individual registration
+ * functions.
+ *
+ * @see avcodec_register
+ * @see av_register_codec_parser
+ * @see av_register_bitstream_filter
+ */
+void avcodec_register_all(void);
+
+/**
+ * Flush buffers, should be called when seeking or when switching to a different stream.
+ */
+void avcodec_flush_buffers(AVCodecContext *avctx);
+
+void avcodec_default_free_buffers(AVCodecContext *s);
+
+/* misc useful functions */
+
+#if FF_API_OLD_FF_PICT_TYPES
+/**
+ * Return a single letter to describe the given picture type pict_type.
+ *
+ * @param[in] pict_type the picture type
+ * @return A single character representing the picture type.
+ * @deprecated Use av_get_picture_type_char() instead.
+ */
+attribute_deprecated
+char av_get_pict_type_char(int pict_type);
+#endif
+
+/**
+ * Return codec bits per sample.
+ *
+ * @param[in] codec_id the codec
+ * @return Number of bits per sample or zero if unknown for the given codec.
+ */
+int av_get_bits_per_sample(enum CodecID codec_id);
+
+#if FF_API_OLD_SAMPLE_FMT
+/**
+ * @deprecated Use av_get_bytes_per_sample() instead.
+ */
+attribute_deprecated
+int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt);
+#endif
+
+/* frame parsing */
+typedef struct AVCodecParserContext {
+ void *priv_data;
+ struct AVCodecParser *parser;
+ int64_t frame_offset; /* offset of the current frame */
+ int64_t cur_offset; /* current offset
+ (incremented by each av_parser_parse()) */
+ int64_t next_frame_offset; /* offset of the next frame */
+ /* video info */
+ int pict_type; /* XXX: Put it back in AVCodecContext. */
+ /**
+ * This field is used for proper frame duration computation in lavf.
+ * It signals, how much longer the frame duration of the current frame
+ * is compared to normal frame duration.
+ *
+ * frame_duration = (1 + repeat_pict) * time_base
+ *
+ * It is used by codecs like H.264 to display telecined material.
+ */
+ int repeat_pict; /* XXX: Put it back in AVCodecContext. */
+ int64_t pts; /* pts of the current frame */
+ int64_t dts; /* dts of the current frame */
+
+ /* private data */
+ int64_t last_pts;
+ int64_t last_dts;
+ int fetch_timestamp;
+
+#define AV_PARSER_PTS_NB 4
+ int cur_frame_start_index;
+ int64_t cur_frame_offset[AV_PARSER_PTS_NB];
+ int64_t cur_frame_pts[AV_PARSER_PTS_NB];
+ int64_t cur_frame_dts[AV_PARSER_PTS_NB];
+
+ int flags;
+#define PARSER_FLAG_COMPLETE_FRAMES 0x0001
+#define PARSER_FLAG_ONCE 0x0002
+/// Set if the parser has a valid file offset
+#define PARSER_FLAG_FETCHED_OFFSET 0x0004
+
+ int64_t offset; ///< byte offset from starting packet start
+ int64_t cur_frame_end[AV_PARSER_PTS_NB];
+
+ /*!
+ * Set by parser to 1 for key frames and 0 for non-key frames.
+ * It is initialized to -1, so if the parser doesn't set this flag,
+ * old-style fallback using AV_PICTURE_TYPE_I picture type as key frames
+ * will be used.
+ */
+ int key_frame;
+
+ /**
+ * Time difference in stream time base units from the pts of this
+ * packet to the point at which the output from the decoder has converged
+ * independent from the availability of previous frames. That is, the
+ * frames are virtually identical no matter if decoding started from
+ * the very first frame or from this keyframe.
+ * Is AV_NOPTS_VALUE if unknown.
+ * This field is not the display duration of the current frame.
+ * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
+ * set.
+ *
+ * The purpose of this field is to allow seeking in streams that have no
+ * keyframes in the conventional sense. It corresponds to the
+ * recovery point SEI in H.264 and match_time_delta in NUT. It is also
+ * essential for some types of subtitle streams to ensure that all
+ * subtitles are correctly displayed after seeking.
+ */
+ int64_t convergence_duration;
+
+ // Timestamp generation support:
+ /**
+ * Synchronization point for start of timestamp generation.
+ *
+ * Set to >0 for sync point, 0 for no sync point and <0 for undefined
+ * (default).
+ *
+ * For example, this corresponds to presence of H.264 buffering period
+ * SEI message.
+ */
+ int dts_sync_point;
+
+ /**
+ * Offset of the current timestamp against last timestamp sync point in
+ * units of AVCodecContext.time_base.
+ *
+ * Set to INT_MIN when dts_sync_point unused. Otherwise, it must
+ * contain a valid timestamp offset.
+ *
+ * Note that the timestamp of sync point has usually a nonzero
+ * dts_ref_dts_delta, which refers to the previous sync point. Offset of
+ * the next frame after timestamp sync point will be usually 1.
+ *
+ * For example, this corresponds to H.264 cpb_removal_delay.
+ */
+ int dts_ref_dts_delta;
+
+ /**
+ * Presentation delay of current frame in units of AVCodecContext.time_base.
+ *
+ * Set to INT_MIN when dts_sync_point unused. Otherwise, it must
+ * contain valid non-negative timestamp delta (presentation time of a frame
+ * must not lie in the past).
+ *
+ * This delay represents the difference between decoding and presentation
+ * time of the frame.
+ *
+ * For example, this corresponds to H.264 dpb_output_delay.
+ */
+ int pts_dts_delta;
+
+ /**
+ * Position of the packet in file.
+ *
+ * Analogous to cur_frame_pts/dts
+ */
+ int64_t cur_frame_pos[AV_PARSER_PTS_NB];
+
+ /**
+ * Byte position of currently parsed frame in stream.
+ */
+ int64_t pos;
+
+ /**
+ * Previous frame byte position.
+ */
+ int64_t last_pos;
+} AVCodecParserContext;
+
+typedef struct AVCodecParser {
+ int codec_ids[5]; /* several codec IDs are permitted */
+ int priv_data_size;
+ int (*parser_init)(AVCodecParserContext *s);
+ int (*parser_parse)(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ const uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size);
+ void (*parser_close)(AVCodecParserContext *s);
+ int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
+ struct AVCodecParser *next;
+} AVCodecParser;
+
+AVCodecParser *av_parser_next(AVCodecParser *c);
+
+void av_register_codec_parser(AVCodecParser *parser);
+AVCodecParserContext *av_parser_init(int codec_id);
+
+/**
+ * Parse a packet.
+ *
+ * @param s parser context.
+ * @param avctx codec context.
+ * @param poutbuf set to pointer to parsed buffer or NULL if not yet finished.
+ * @param poutbuf_size set to size of parsed buffer or zero if not yet finished.
+ * @param buf input buffer.
+ * @param buf_size input length, to signal EOF, this should be 0 (so that the last frame can be output).
+ * @param pts input presentation timestamp.
+ * @param dts input decoding timestamp.
+ * @param pos input byte position in stream.
+ * @return the number of bytes of the input bitstream used.
+ *
+ * Example:
+ * @code
+ * while(in_len){
+ * len = av_parser_parse2(myparser, AVCodecContext, &data, &size,
+ * in_data, in_len,
+ * pts, dts, pos);
+ * in_data += len;
+ * in_len -= len;
+ *
+ * if(size)
+ * decode_frame(data, size);
+ * }
+ * @endcode
+ */
+int av_parser_parse2(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size,
+ int64_t pts, int64_t dts,
+ int64_t pos);
+
+int av_parser_change(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size, int keyframe);
+void av_parser_close(AVCodecParserContext *s);
+
+
+typedef struct AVBitStreamFilterContext {
+ void *priv_data;
+ struct AVBitStreamFilter *filter;
+ AVCodecParserContext *parser;
+ struct AVBitStreamFilterContext *next;
+} AVBitStreamFilterContext;
+
+
+typedef struct AVBitStreamFilter {
+ const char *name;
+ int priv_data_size;
+ int (*filter)(AVBitStreamFilterContext *bsfc,
+ AVCodecContext *avctx, const char *args,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size, int keyframe);
+ void (*close)(AVBitStreamFilterContext *bsfc);
+ struct AVBitStreamFilter *next;
+} AVBitStreamFilter;
+
+void av_register_bitstream_filter(AVBitStreamFilter *bsf);
+AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
+int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
+ AVCodecContext *avctx, const char *args,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size, int keyframe);
+void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
+
+AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f);
+
+/* memory */
+
+/**
+ * Reallocate the given block if it is not large enough, otherwise do nothing.
+ *
+ * @see av_realloc
+ */
+void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Allocate a buffer, reusing the given one if large enough.
+ *
+ * Contrary to av_fast_realloc the current buffer contents might not be
+ * preserved and on error the old buffer is freed, thus no special
+ * handling to avoid memleaks is necessary.
+ *
+ * @param ptr pointer to pointer to already allocated buffer, overwritten with pointer to new buffer
+ * @param size size of the buffer *ptr points to
+ * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and
+ * *size 0 if an error occurred.
+ */
+void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Copy image src to dst. Wraps av_picture_data_copy() above.
+ */
+void av_picture_copy(AVPicture *dst, const AVPicture *src,
+ enum PixelFormat pix_fmt, int width, int height);
+
+/**
+ * Crop image top and left side.
+ */
+int av_picture_crop(AVPicture *dst, const AVPicture *src,
+ enum PixelFormat pix_fmt, int top_band, int left_band);
+
+/**
+ * Pad image.
+ */
+int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, enum PixelFormat pix_fmt,
+ int padtop, int padbottom, int padleft, int padright, int *color);
+
+/**
+ * Encode extradata length to a buffer. Used by xiph codecs.
+ *
+ * @param s buffer to write to; must be at least (v/255+1) bytes long
+ * @param v size of extradata in bytes
+ * @return number of bytes written to the buffer.
+ */
+unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
+
+/**
+ * Logs a generic warning message about a missing feature. This function is
+ * intended to be used internally by Libav (libavcodec, libavformat, etc.)
+ * only, and would normally not be used by applications.
+ * @param[in] avc a pointer to an arbitrary struct of which the first field is
+ * a pointer to an AVClass struct
+ * @param[in] feature string containing the name of the missing feature
+ * @param[in] want_sample indicates if samples are wanted which exhibit this feature.
+ * If want_sample is non-zero, additional verbage will be added to the log
+ * message which tells the user how to report samples to the development
+ * mailing list.
+ */
+void av_log_missing_feature(void *avc, const char *feature, int want_sample);
+
+/**
+ * Log a generic warning message asking for a sample. This function is
+ * intended to be used internally by Libav (libavcodec, libavformat, etc.)
+ * only, and would normally not be used by applications.
+ * @param[in] avc a pointer to an arbitrary struct of which the first field is
+ * a pointer to an AVClass struct
+ * @param[in] msg string containing an optional message, or NULL if no message
+ */
+void av_log_ask_for_sample(void *avc, const char *msg, ...);
+
+/**
+ * Register the hardware accelerator hwaccel.
+ */
+void av_register_hwaccel(AVHWAccel *hwaccel);
+
+/**
+ * If hwaccel is NULL, returns the first registered hardware accelerator,
+ * if hwaccel is non-NULL, returns the next registered hardware accelerator
+ * after hwaccel, or NULL if hwaccel is the last one.
+ */
+AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel);
+
+
+/**
+ * Lock operation used by lockmgr
+ */
+enum AVLockOp {
+ AV_LOCK_CREATE, ///< Create a mutex
+ AV_LOCK_OBTAIN, ///< Lock the mutex
+ AV_LOCK_RELEASE, ///< Unlock the mutex
+ AV_LOCK_DESTROY, ///< Free mutex resources
+};
+
+/**
+ * Register a user provided lock manager supporting the operations
+ * specified by AVLockOp. mutex points to a (void *) where the
+ * lockmgr should store/get a pointer to a user allocated mutex. It's
+ * NULL upon AV_LOCK_CREATE and != NULL for all other ops.
+ *
+ * @param cb User defined callback. Note: Libav may invoke calls to this
+ * callback during the call to av_lockmgr_register().
+ * Thus, the application must be prepared to handle that.
+ * If cb is set to NULL the lockmgr will be unregistered.
+ * Also note that during unregistration the previously registered
+ * lockmgr callback may also be invoked.
+ */
+int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
+
+#endif /* AVCODEC_AVCODEC_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVFFT_H
+#define AVCODEC_AVFFT_H
+
+typedef float FFTSample;
+
+typedef struct FFTComplex {
+ FFTSample re, im;
+} FFTComplex;
+
+typedef struct FFTContext FFTContext;
+
+/**
+ * Set up a complex FFT.
+ * @param nbits log2 of the length of the input array
+ * @param inverse if 0 perform the forward transform, if 1 perform the inverse
+ */
+FFTContext *av_fft_init(int nbits, int inverse);
+
+/**
+ * Do the permutation needed BEFORE calling ff_fft_calc().
+ */
+void av_fft_permute(FFTContext *s, FFTComplex *z);
+
+/**
+ * Do a complex FFT with the parameters defined in av_fft_init(). The
+ * input data must be permuted before. No 1.0/sqrt(n) normalization is done.
+ */
+void av_fft_calc(FFTContext *s, FFTComplex *z);
+
+void av_fft_end(FFTContext *s);
+
+FFTContext *av_mdct_init(int nbits, int inverse, double scale);
+void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_mdct_end(FFTContext *s);
+
+/* Real Discrete Fourier Transform */
+
+enum RDFTransformType {
+ DFT_R2C,
+ IDFT_C2R,
+ IDFT_R2C,
+ DFT_C2R,
+};
+
+typedef struct RDFTContext RDFTContext;
+
+/**
+ * Set up a real FFT.
+ * @param nbits log2 of the length of the input array
+ * @param trans the type of transform
+ */
+RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans);
+void av_rdft_calc(RDFTContext *s, FFTSample *data);
+void av_rdft_end(RDFTContext *s);
+
+/* Discrete Cosine Transform */
+
+typedef struct DCTContext DCTContext;
+
+enum DCTTransformType {
+ DCT_II = 0,
+ DCT_III,
+ DCT_I,
+ DST_I,
+};
+
+/**
+ * Set up DCT.
+ * @param nbits size of the input array:
+ * (1 << nbits) for DCT-II, DCT-III and DST-I
+ * (1 << nbits) + 1 for DCT-I
+ *
+ * @note the first element of the input of DST-I is ignored
+ */
+DCTContext *av_dct_init(int nbits, enum DCTTransformType type);
+void av_dct_calc(DCTContext *s, FFTSample *data);
+void av_dct_end (DCTContext *s);
+
+#endif /* AVCODEC_AVFFT_H */
--- /dev/null
+/*
+ * DXVA2 HW acceleration
+ *
+ * copyright (c) 2009 Laurent Aimar
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DXVA_H
+#define AVCODEC_DXVA_H
+
+#include <stdint.h>
+
+#include <dxva2api.h>
+
+/**
+ * This structure is used to provides the necessary configurations and data
+ * to the DXVA2 Libav HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ */
+struct dxva_context {
+ /**
+ * DXVA2 decoder object
+ */
+ IDirectXVideoDecoder *decoder;
+
+ /**
+ * DXVA2 configuration used to create the decoder
+ */
+ const DXVA2_ConfigPictureDecode *cfg;
+
+ /**
+ * The number of surface in the surface array
+ */
+ unsigned surface_count;
+
+ /**
+ * The array of Direct3D surfaces used to create the decoder
+ */
+ LPDIRECT3DSURFACE9 *surface;
+
+ /**
+ * A bit field configuring the workarounds needed for using the decoder
+ */
+ uint64_t workaround;
+
+ /**
+ * Private to the Libav AVHWAccel implementation
+ */
+ unsigned report_id;
+};
+
+#endif /* AVCODEC_DXVA_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * This header is provided for compatibility only and will be removed
+ * on next major bump
+ */
+
+#ifndef AVCODEC_OPT_H
+#define AVCODEC_OPT_H
+
+#include "libavcodec/version.h"
+
+#if FF_API_OPT_H
+#include "libavutil/opt.h"
+#endif
+
+#endif /* AVCODEC_OPT_H */
--- /dev/null
+/*
+ * Video Acceleration API (shared data between Libav and the video player)
+ * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
+ *
+ * Copyright (C) 2008-2009 Splitted-Desktop Systems
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VAAPI_H
+#define AVCODEC_VAAPI_H
+
+#include <stdint.h>
+
+/**
+ * \defgroup VAAPI_Decoding VA API Decoding
+ * \ingroup Decoder
+ * @{
+ */
+
+/**
+ * This structure is used to share data between the Libav library and
+ * the client video application.
+ * This shall be zero-allocated and available as
+ * AVCodecContext.hwaccel_context. All user members can be set once
+ * during initialization or through each AVCodecContext.get_buffer()
+ * function call. In any case, they must be valid prior to calling
+ * decoding functions.
+ */
+struct vaapi_context {
+ /**
+ * Window system dependent data
+ *
+ * - encoding: unused
+ * - decoding: Set by user
+ */
+ void *display;
+
+ /**
+ * Configuration ID
+ *
+ * - encoding: unused
+ * - decoding: Set by user
+ */
+ uint32_t config_id;
+
+ /**
+ * Context ID (video decode pipeline)
+ *
+ * - encoding: unused
+ * - decoding: Set by user
+ */
+ uint32_t context_id;
+
+ /**
+ * VAPictureParameterBuffer ID
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t pic_param_buf_id;
+
+ /**
+ * VAIQMatrixBuffer ID
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t iq_matrix_buf_id;
+
+ /**
+ * VABitPlaneBuffer ID (for VC-1 decoding)
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t bitplane_buf_id;
+
+ /**
+ * Slice parameter/data buffer IDs
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t *slice_buf_ids;
+
+ /**
+ * Number of effective slice buffer IDs to send to the HW
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int n_slice_buf_ids;
+
+ /**
+ * Size of pre-allocated slice_buf_ids
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int slice_buf_ids_alloc;
+
+ /**
+ * Pointer to VASliceParameterBuffers
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ void *slice_params;
+
+ /**
+ * Size of a VASliceParameterBuffer element
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int slice_param_size;
+
+ /**
+ * Size of pre-allocated slice_params
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int slice_params_alloc;
+
+ /**
+ * Number of slices currently filled in
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int slice_count;
+
+ /**
+ * Pointer to slice data buffer base
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ const uint8_t *slice_data;
+
+ /**
+ * Current size of slice data
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t slice_data_size;
+};
+
+/* @} */
+
+#endif /* AVCODEC_VAAPI_H */
--- /dev/null
+/*
+ * The Video Decode and Presentation API for UNIX (VDPAU) is used for
+ * hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1.
+ *
+ * Copyright (C) 2008 NVIDIA
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VDPAU_H
+#define AVCODEC_VDPAU_H
+
+/**
+ * \defgroup Decoder VDPAU Decoder and Renderer
+ *
+ * VDPAU hardware acceleration has two modules
+ * - VDPAU decoding
+ * - VDPAU presentation
+ *
+ * The VDPAU decoding module parses all headers using Libav
+ * parsing mechanisms and uses VDPAU for the actual decoding.
+ *
+ * As per the current implementation, the actual decoding
+ * and rendering (API calls) are done as part of the VDPAU
+ * presentation (vo_vdpau.c) module.
+ *
+ * \defgroup VDPAU_Decoding VDPAU Decoding
+ * \ingroup Decoder
+ * @{
+ */
+
+#include <vdpau/vdpau.h>
+#include <vdpau/vdpau_x11.h>
+
+/** \brief The videoSurface is used for rendering. */
+#define FF_VDPAU_STATE_USED_FOR_RENDER 1
+
+/**
+ * \brief The videoSurface is needed for reference/prediction.
+ * The codec manipulates this.
+ */
+#define FF_VDPAU_STATE_USED_FOR_REFERENCE 2
+
+/**
+ * \brief This structure is used as a callback between the Libav
+ * decoder (vd_) and presentation (vo_) module.
+ * This is used for defining a video frame containing surface,
+ * picture parameter, bitstream information etc which are passed
+ * between the Libav decoder and its clients.
+ */
+struct vdpau_render_state {
+ VdpVideoSurface surface; ///< Used as rendered surface, never changed.
+
+ int state; ///< Holds FF_VDPAU_STATE_* values.
+
+ /** picture parameter information for all supported codecs */
+ union VdpPictureInfo {
+ VdpPictureInfoH264 h264;
+ VdpPictureInfoMPEG1Or2 mpeg;
+ VdpPictureInfoVC1 vc1;
+ VdpPictureInfoMPEG4Part2 mpeg4;
+ } info;
+
+ /** Describe size/location of the compressed video data.
+ Set to 0 when freeing bitstream_buffers. */
+ int bitstream_buffers_allocated;
+ int bitstream_buffers_used;
+ /** The user is responsible for freeing this buffer using av_freep(). */
+ VdpBitstreamBuffer *bitstream_buffers;
+};
+
+/* @}*/
+
+#endif /* AVCODEC_VDPAU_H */
--- /dev/null
+/*
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VERSION_H
+#define AVCODEC_VERSION_H
+
+#define LIBAVCODEC_VERSION_MAJOR 53
+#define LIBAVCODEC_VERSION_MINOR 5
+#define LIBAVCODEC_VERSION_MICRO 0
+
+#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
+ LIBAVCODEC_VERSION_MINOR, \
+ LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \
+ LIBAVCODEC_VERSION_MINOR, \
+ LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
+
+#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
+
+/**
+ * Those FF_API_* defines are not part of public API.
+ * They may change, break or disappear at any time.
+ */
+#ifndef FF_API_PALETTE_CONTROL
+#define FF_API_PALETTE_CONTROL (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_OLD_SAMPLE_FMT
+#define FF_API_OLD_SAMPLE_FMT (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_OLD_AUDIOCONVERT
+#define FF_API_OLD_AUDIOCONVERT (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_ANTIALIAS_ALGO
+#define FF_API_ANTIALIAS_ALGO (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_REQUEST_CHANNELS
+#define FF_API_REQUEST_CHANNELS (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_OPT_H
+#define FF_API_OPT_H (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_THREAD_INIT
+#define FF_API_THREAD_INIT (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_OLD_FF_PICT_TYPES
+#define FF_API_OLD_FF_PICT_TYPES (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_FLAC_GLOBAL_OPTS
+#define FF_API_FLAC_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_GET_PIX_FMT_NAME
+#define FF_API_GET_PIX_FMT_NAME (LIBAVCODEC_VERSION_MAJOR < 54)
+#endif
+
+#endif /* AVCODEC_VERSION_H */
--- /dev/null
+/*
+ * Copyright (C) 2003 Ivan Kalvachev
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_XVMC_H
+#define AVCODEC_XVMC_H
+
+#include <X11/extensions/XvMC.h>
+
+#include "avcodec.h"
+
+#define AV_XVMC_ID 0x1DC711C0 /**< special value to ensure that regular pixel routines haven't corrupted the struct
+ the number is 1337 speak for the letters IDCT MCo (motion compensation) */
+
+struct xvmc_pix_fmt {
+ /** The field contains the special constant value AV_XVMC_ID.
+ It is used as a test that the application correctly uses the API,
+ and that there is no corruption caused by pixel routines.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int xvmc_id;
+
+ /** Pointer to the block array allocated by XvMCCreateBlocks().
+ The array has to be freed by XvMCDestroyBlocks().
+ Each group of 64 values represents one data block of differential
+ pixel information (in MoCo mode) or coefficients for IDCT.
+ - application - set the pointer during initialization
+ - libavcodec - fills coefficients/pixel data into the array
+ */
+ short* data_blocks;
+
+ /** Pointer to the macroblock description array allocated by
+ XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks().
+ - application - set the pointer during initialization
+ - libavcodec - fills description data into the array
+ */
+ XvMCMacroBlock* mv_blocks;
+
+ /** Number of macroblock descriptions that can be stored in the mv_blocks
+ array.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int allocated_mv_blocks;
+
+ /** Number of blocks that can be stored at once in the data_blocks array.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int allocated_data_blocks;
+
+ /** Indicate that the hardware would interpret data_blocks as IDCT
+ coefficients and perform IDCT on them.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int idct;
+
+ /** In MoCo mode it indicates that intra macroblocks are assumed to be in
+ unsigned format; same as the XVMC_INTRA_UNSIGNED flag.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int unsigned_intra;
+
+ /** Pointer to the surface allocated by XvMCCreateSurface().
+ It has to be freed by XvMCDestroySurface() on application exit.
+ It identifies the frame and its state on the video hardware.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ XvMCSurface* p_surface;
+
+/** Set by the decoder before calling ff_draw_horiz_band(),
+ needed by the XvMCRenderSurface function. */
+//@{
+ /** Pointer to the surface used as past reference
+ - application - unchanged
+ - libavcodec - set
+ */
+ XvMCSurface* p_past_surface;
+
+ /** Pointer to the surface used as future reference
+ - application - unchanged
+ - libavcodec - set
+ */
+ XvMCSurface* p_future_surface;
+
+ /** top/bottom field or frame
+ - application - unchanged
+ - libavcodec - set
+ */
+ unsigned int picture_structure;
+
+ /** XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
+ - application - unchanged
+ - libavcodec - set
+ */
+ unsigned int flags;
+//}@
+
+ /** Number of macroblock descriptions in the mv_blocks array
+ that have already been passed to the hardware.
+ - application - zeroes it on get_buffer().
+ A successful ff_draw_horiz_band() may increment it
+ with filled_mb_block_num or zero both.
+ - libavcodec - unchanged
+ */
+ int start_mv_blocks_num;
+
+ /** Number of new macroblock descriptions in the mv_blocks array (after
+ start_mv_blocks_num) that are filled by libavcodec and have to be
+ passed to the hardware.
+ - application - zeroes it on get_buffer() or after successful
+ ff_draw_horiz_band().
+ - libavcodec - increment with one of each stored MB
+ */
+ int filled_mv_blocks_num;
+
+ /** Number of the the next free data block; one data block consists of
+ 64 short values in the data_blocks array.
+ All blocks before this one have already been claimed by placing their
+ position into the corresponding block description structure field,
+ that are part of the mv_blocks array.
+ - application - zeroes it on get_buffer().
+ A successful ff_draw_horiz_band() may zero it together
+ with start_mb_blocks_num.
+ - libavcodec - each decoded macroblock increases it by the number
+ of coded blocks it contains.
+ */
+ int next_free_data_block_num;
+};
+
+#endif /* AVCODEC_XVMC_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVDEVICE_AVDEVICE_H
+#define AVDEVICE_AVDEVICE_H
+
+#include "libavutil/avutil.h"
+
+#define LIBAVDEVICE_VERSION_MAJOR 53
+#define LIBAVDEVICE_VERSION_MINOR 0
+#define LIBAVDEVICE_VERSION_MICRO 0
+
+#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
+ LIBAVDEVICE_VERSION_MINOR, \
+ LIBAVDEVICE_VERSION_MICRO)
+#define LIBAVDEVICE_VERSION AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \
+ LIBAVDEVICE_VERSION_MINOR, \
+ LIBAVDEVICE_VERSION_MICRO)
+#define LIBAVDEVICE_BUILD LIBAVDEVICE_VERSION_INT
+
+#ifndef FF_API_V4L
+#define FF_API_V4L (LIBAVDEVICE_VERSION_MAJOR < 54)
+#endif
+
+/**
+ * Return the LIBAVDEVICE_VERSION_INT constant.
+ */
+unsigned avdevice_version(void);
+
+/**
+ * Return the libavdevice build-time configuration.
+ */
+const char *avdevice_configuration(void);
+
+/**
+ * Return the libavdevice license.
+ */
+const char *avdevice_license(void);
+
+/**
+ * Initialize libavdevice and register all the input and output devices.
+ * @warning This function is not thread safe.
+ */
+void avdevice_register_all(void);
+
+#endif /* AVDEVICE_AVDEVICE_H */
+
--- /dev/null
+/*
+ * filter layer
+ * Copyright (c) 2007 Bobby Bingham
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_AVFILTER_H
+#define AVFILTER_AVFILTER_H
+
+#include "libavutil/avutil.h"
+#include "libavutil/samplefmt.h"
+
+#define LIBAVFILTER_VERSION_MAJOR 2
+#define LIBAVFILTER_VERSION_MINOR 4
+#define LIBAVFILTER_VERSION_MICRO 0
+
+#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
+ LIBAVFILTER_VERSION_MINOR, \
+ LIBAVFILTER_VERSION_MICRO)
+#define LIBAVFILTER_VERSION AV_VERSION(LIBAVFILTER_VERSION_MAJOR, \
+ LIBAVFILTER_VERSION_MINOR, \
+ LIBAVFILTER_VERSION_MICRO)
+#define LIBAVFILTER_BUILD LIBAVFILTER_VERSION_INT
+
+#include <stddef.h>
+
+/**
+ * Return the LIBAVFILTER_VERSION_INT constant.
+ */
+unsigned avfilter_version(void);
+
+/**
+ * Return the libavfilter build-time configuration.
+ */
+const char *avfilter_configuration(void);
+
+/**
+ * Return the libavfilter license.
+ */
+const char *avfilter_license(void);
+
+
+typedef struct AVFilterContext AVFilterContext;
+typedef struct AVFilterLink AVFilterLink;
+typedef struct AVFilterPad AVFilterPad;
+
+/**
+ * A reference-counted buffer data type used by the filter system. Filters
+ * should not store pointers to this structure directly, but instead use the
+ * AVFilterBufferRef structure below.
+ */
+typedef struct AVFilterBuffer {
+ uint8_t *data[8]; ///< buffer data for each plane/channel
+ int linesize[8]; ///< number of bytes per line
+
+ unsigned refcount; ///< number of references to this buffer
+
+ /** private data to be used by a custom free function */
+ void *priv;
+ /**
+ * A pointer to the function to deallocate this buffer if the default
+ * function is not sufficient. This could, for example, add the memory
+ * back into a memory pool to be reused later without the overhead of
+ * reallocating it from scratch.
+ */
+ void (*free)(struct AVFilterBuffer *buf);
+
+ int format; ///< media format
+ int w, h; ///< width and height of the allocated buffer
+} AVFilterBuffer;
+
+#define AV_PERM_READ 0x01 ///< can read from the buffer
+#define AV_PERM_WRITE 0x02 ///< can write to the buffer
+#define AV_PERM_PRESERVE 0x04 ///< nobody else can overwrite the buffer
+#define AV_PERM_REUSE 0x08 ///< can output the buffer multiple times, with the same contents each time
+#define AV_PERM_REUSE2 0x10 ///< can output the buffer multiple times, modified each time
+#define AV_PERM_NEG_LINESIZES 0x20 ///< the buffer requested can have negative linesizes
+
+/**
+ * Audio specific properties in a reference to an AVFilterBuffer. Since
+ * AVFilterBufferRef is common to different media formats, audio specific
+ * per reference properties must be separated out.
+ */
+typedef struct AVFilterBufferRefAudioProps {
+ int64_t channel_layout; ///< channel layout of audio buffer
+ int nb_samples; ///< number of audio samples
+ int size; ///< audio buffer size
+ uint32_t sample_rate; ///< audio buffer sample rate
+ int planar; ///< audio buffer - planar or packed
+} AVFilterBufferRefAudioProps;
+
+/**
+ * Video specific properties in a reference to an AVFilterBuffer. Since
+ * AVFilterBufferRef is common to different media formats, video specific
+ * per reference properties must be separated out.
+ */
+typedef struct AVFilterBufferRefVideoProps {
+ int w; ///< image width
+ int h; ///< image height
+ AVRational pixel_aspect; ///< pixel aspect ratio
+ int interlaced; ///< is frame interlaced
+ int top_field_first; ///< field order
+ enum AVPictureType pict_type; ///< picture type of the frame
+ int key_frame; ///< 1 -> keyframe, 0-> not
+} AVFilterBufferRefVideoProps;
+
+/**
+ * A reference to an AVFilterBuffer. Since filters can manipulate the origin of
+ * a buffer to, for example, crop image without any memcpy, the buffer origin
+ * and dimensions are per-reference properties. Linesize is also useful for
+ * image flipping, frame to field filters, etc, and so is also per-reference.
+ *
+ * TODO: add anything necessary for frame reordering
+ */
+typedef struct AVFilterBufferRef {
+ AVFilterBuffer *buf; ///< the buffer that this is a reference to
+ uint8_t *data[8]; ///< picture/audio data for each plane
+ int linesize[8]; ///< number of bytes per line
+ int format; ///< media format
+
+ /**
+ * presentation timestamp. The time unit may change during
+ * filtering, as it is specified in the link and the filter code
+ * may need to rescale the PTS accordingly.
+ */
+ int64_t pts;
+ int64_t pos; ///< byte position in stream, -1 if unknown
+
+ int perms; ///< permissions, see the AV_PERM_* flags
+
+ enum AVMediaType type; ///< media type of buffer data
+ AVFilterBufferRefVideoProps *video; ///< video buffer specific properties
+ AVFilterBufferRefAudioProps *audio; ///< audio buffer specific properties
+} AVFilterBufferRef;
+
+/**
+ * Copy properties of src to dst, without copying the actual data
+ */
+static inline void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, AVFilterBufferRef *src)
+{
+ // copy common properties
+ dst->pts = src->pts;
+ dst->pos = src->pos;
+
+ switch (src->type) {
+ case AVMEDIA_TYPE_VIDEO: *dst->video = *src->video; break;
+ case AVMEDIA_TYPE_AUDIO: *dst->audio = *src->audio; break;
+ }
+}
+
+/**
+ * Add a new reference to a buffer.
+ *
+ * @param ref an existing reference to the buffer
+ * @param pmask a bitmask containing the allowable permissions in the new
+ * reference
+ * @return a new reference to the buffer with the same properties as the
+ * old, excluding any permissions denied by pmask
+ */
+AVFilterBufferRef *avfilter_ref_buffer(AVFilterBufferRef *ref, int pmask);
+
+/**
+ * Remove a reference to a buffer. If this is the last reference to the
+ * buffer, the buffer itself is also automatically freed.
+ *
+ * @param ref reference to the buffer, may be NULL
+ */
+void avfilter_unref_buffer(AVFilterBufferRef *ref);
+
+/**
+ * A list of supported formats for one end of a filter link. This is used
+ * during the format negotiation process to try to pick the best format to
+ * use to minimize the number of necessary conversions. Each filter gives a
+ * list of the formats supported by each input and output pad. The list
+ * given for each pad need not be distinct - they may be references to the
+ * same list of formats, as is often the case when a filter supports multiple
+ * formats, but will always output the same format as it is given in input.
+ *
+ * In this way, a list of possible input formats and a list of possible
+ * output formats are associated with each link. When a set of formats is
+ * negotiated over a link, the input and output lists are merged to form a
+ * new list containing only the common elements of each list. In the case
+ * that there were no common elements, a format conversion is necessary.
+ * Otherwise, the lists are merged, and all other links which reference
+ * either of the format lists involved in the merge are also affected.
+ *
+ * For example, consider the filter chain:
+ * filter (a) --> (b) filter (b) --> (c) filter
+ *
+ * where the letters in parenthesis indicate a list of formats supported on
+ * the input or output of the link. Suppose the lists are as follows:
+ * (a) = {A, B}
+ * (b) = {A, B, C}
+ * (c) = {B, C}
+ *
+ * First, the first link's lists are merged, yielding:
+ * filter (a) --> (a) filter (a) --> (c) filter
+ *
+ * Notice that format list (b) now refers to the same list as filter list (a).
+ * Next, the lists for the second link are merged, yielding:
+ * filter (a) --> (a) filter (a) --> (a) filter
+ *
+ * where (a) = {B}.
+ *
+ * Unfortunately, when the format lists at the two ends of a link are merged,
+ * we must ensure that all links which reference either pre-merge format list
+ * get updated as well. Therefore, we have the format list structure store a
+ * pointer to each of the pointers to itself.
+ */
+typedef struct AVFilterFormats {
+ unsigned format_count; ///< number of formats
+ int *formats; ///< list of media formats
+
+ unsigned refcount; ///< number of references to this list
+ struct AVFilterFormats ***refs; ///< references to this list
+} AVFilterFormats;
+
+/**
+ * Create a list of supported formats. This is intended for use in
+ * AVFilter->query_formats().
+ *
+ * @param fmts list of media formats, terminated by -1
+ * @return the format list, with no existing references
+ */
+AVFilterFormats *avfilter_make_format_list(const int *fmts);
+
+/**
+ * Add fmt to the list of media formats contained in *avff.
+ * If *avff is NULL the function allocates the filter formats struct
+ * and puts its pointer in *avff.
+ *
+ * @return a non negative value in case of success, or a negative
+ * value corresponding to an AVERROR code in case of error
+ */
+int avfilter_add_format(AVFilterFormats **avff, int fmt);
+
+/**
+ * Return a list of all formats supported by Libav for the given media type.
+ */
+AVFilterFormats *avfilter_all_formats(enum AVMediaType type);
+
+/**
+ * Return a format list which contains the intersection of the formats of
+ * a and b. Also, all the references of a, all the references of b, and
+ * a and b themselves will be deallocated.
+ *
+ * If a and b do not share any common formats, neither is modified, and NULL
+ * is returned.
+ */
+AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b);
+
+/**
+ * Add *ref as a new reference to formats.
+ * That is the pointers will point like in the ascii art below:
+ * ________
+ * |formats |<--------.
+ * | ____ | ____|___________________
+ * | |refs| | | __|_
+ * | |* * | | | | | | AVFilterLink
+ * | |* *--------->|*ref|
+ * | |____| | | |____|
+ * |________| |________________________
+ */
+void avfilter_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref);
+
+/**
+ * If *ref is non-NULL, remove *ref as a reference to the format list
+ * it currently points to, deallocates that list if this was the last
+ * reference, and sets *ref to NULL.
+ *
+ * Before After
+ * ________ ________ NULL
+ * |formats |<--------. |formats | ^
+ * | ____ | ____|________________ | ____ | ____|________________
+ * | |refs| | | __|_ | |refs| | | __|_
+ * | |* * | | | | | | AVFilterLink | |* * | | | | | | AVFilterLink
+ * | |* *--------->|*ref| | |* | | | |*ref|
+ * | |____| | | |____| | |____| | | |____|
+ * |________| |_____________________ |________| |_____________________
+ */
+void avfilter_formats_unref(AVFilterFormats **ref);
+
+/**
+ *
+ * Before After
+ * ________ ________
+ * |formats |<---------. |formats |<---------.
+ * | ____ | ___|___ | ____ | ___|___
+ * | |refs| | | | | | |refs| | | | | NULL
+ * | |* *--------->|*oldref| | |* *--------->|*newref| ^
+ * | |* * | | |_______| | |* * | | |_______| ___|___
+ * | |____| | | |____| | | | |
+ * |________| |________| |*oldref|
+ * |_______|
+ */
+void avfilter_formats_changeref(AVFilterFormats **oldref,
+ AVFilterFormats **newref);
+
+/**
+ * A filter pad used for either input or output.
+ */
+struct AVFilterPad {
+ /**
+ * Pad name. The name is unique among inputs and among outputs, but an
+ * input may have the same name as an output. This may be NULL if this
+ * pad has no need to ever be referenced by name.
+ */
+ const char *name;
+
+ /**
+ * AVFilterPad type. Only video supported now, hopefully someone will
+ * add audio in the future.
+ */
+ enum AVMediaType type;
+
+ /**
+ * Minimum required permissions on incoming buffers. Any buffer with
+ * insufficient permissions will be automatically copied by the filter
+ * system to a new buffer which provides the needed access permissions.
+ *
+ * Input pads only.
+ */
+ int min_perms;
+
+ /**
+ * Permissions which are not accepted on incoming buffers. Any buffer
+ * which has any of these permissions set will be automatically copied
+ * by the filter system to a new buffer which does not have those
+ * permissions. This can be used to easily disallow buffers with
+ * AV_PERM_REUSE.
+ *
+ * Input pads only.
+ */
+ int rej_perms;
+
+ /**
+ * Callback called before passing the first slice of a new frame. If
+ * NULL, the filter layer will default to storing a reference to the
+ * picture inside the link structure.
+ *
+ * Input video pads only.
+ */
+ void (*start_frame)(AVFilterLink *link, AVFilterBufferRef *picref);
+
+ /**
+ * Callback function to get a video buffer. If NULL, the filter system will
+ * use avfilter_default_get_video_buffer().
+ *
+ * Input video pads only.
+ */
+ AVFilterBufferRef *(*get_video_buffer)(AVFilterLink *link, int perms, int w, int h);
+
+ /**
+ * Callback function to get an audio buffer. If NULL, the filter system will
+ * use avfilter_default_get_audio_buffer().
+ *
+ * Input audio pads only.
+ */
+ AVFilterBufferRef *(*get_audio_buffer)(AVFilterLink *link, int perms,
+ enum AVSampleFormat sample_fmt, int size,
+ int64_t channel_layout, int planar);
+
+ /**
+ * Callback called after the slices of a frame are completely sent. If
+ * NULL, the filter layer will default to releasing the reference stored
+ * in the link structure during start_frame().
+ *
+ * Input video pads only.
+ */
+ void (*end_frame)(AVFilterLink *link);
+
+ /**
+ * Slice drawing callback. This is where a filter receives video data
+ * and should do its processing.
+ *
+ * Input video pads only.
+ */
+ void (*draw_slice)(AVFilterLink *link, int y, int height, int slice_dir);
+
+ /**
+ * Samples filtering callback. This is where a filter receives audio data
+ * and should do its processing.
+ *
+ * Input audio pads only.
+ */
+ void (*filter_samples)(AVFilterLink *link, AVFilterBufferRef *samplesref);
+
+ /**
+ * Frame poll callback. This returns the number of immediately available
+ * samples. It should return a positive value if the next request_frame()
+ * is guaranteed to return one frame (with no delay).
+ *
+ * Defaults to just calling the source poll_frame() method.
+ *
+ * Output video pads only.
+ */
+ int (*poll_frame)(AVFilterLink *link);
+
+ /**
+ * Frame request callback. A call to this should result in at least one
+ * frame being output over the given link. This should return zero on
+ * success, and another value on error.
+ *
+ * Output video pads only.
+ */
+ int (*request_frame)(AVFilterLink *link);
+
+ /**
+ * Link configuration callback.
+ *
+ * For output pads, this should set the link properties such as
+ * width/height. This should NOT set the format property - that is
+ * negotiated between filters by the filter system using the
+ * query_formats() callback before this function is called.
+ *
+ * For input pads, this should check the properties of the link, and update
+ * the filter's internal state as necessary.
+ *
+ * For both input and output filters, this should return zero on success,
+ * and another value on error.
+ */
+ int (*config_props)(AVFilterLink *link);
+};
+
+/** default handler for start_frame() for video inputs */
+void avfilter_default_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
+
+/** default handler for draw_slice() for video inputs */
+void avfilter_default_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
+
+/** default handler for end_frame() for video inputs */
+void avfilter_default_end_frame(AVFilterLink *link);
+
+/** default handler for filter_samples() for audio inputs */
+void avfilter_default_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref);
+
+/** default handler for config_props() for audio/video outputs */
+int avfilter_default_config_output_link(AVFilterLink *link);
+
+/** default handler for config_props() for audio/video inputs */
+int avfilter_default_config_input_link (AVFilterLink *link);
+
+/** default handler for get_video_buffer() for video inputs */
+AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link,
+ int perms, int w, int h);
+
+/** default handler for get_audio_buffer() for audio inputs */
+AVFilterBufferRef *avfilter_default_get_audio_buffer(AVFilterLink *link, int perms,
+ enum AVSampleFormat sample_fmt, int size,
+ int64_t channel_layout, int planar);
+
+/**
+ * A helper for query_formats() which sets all links to the same list of
+ * formats. If there are no links hooked to this filter, the list of formats is
+ * freed.
+ */
+void avfilter_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats);
+
+/** Default handler for query_formats() */
+int avfilter_default_query_formats(AVFilterContext *ctx);
+
+/** start_frame() handler for filters which simply pass video along */
+void avfilter_null_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
+
+/** draw_slice() handler for filters which simply pass video along */
+void avfilter_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
+
+/** end_frame() handler for filters which simply pass video along */
+void avfilter_null_end_frame(AVFilterLink *link);
+
+/** filter_samples() handler for filters which simply pass audio along */
+void avfilter_null_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref);
+
+/** get_video_buffer() handler for filters which simply pass video along */
+AVFilterBufferRef *avfilter_null_get_video_buffer(AVFilterLink *link,
+ int perms, int w, int h);
+
+/** get_audio_buffer() handler for filters which simply pass audio along */
+AVFilterBufferRef *avfilter_null_get_audio_buffer(AVFilterLink *link, int perms,
+ enum AVSampleFormat sample_fmt, int size,
+ int64_t channel_layout, int planar);
+
+/**
+ * Filter definition. This defines the pads a filter contains, and all the
+ * callback functions used to interact with the filter.
+ */
+typedef struct AVFilter {
+ const char *name; ///< filter name
+
+ int priv_size; ///< size of private data to allocate for the filter
+
+ /**
+ * Filter initialization function. Args contains the user-supplied
+ * parameters. FIXME: maybe an AVOption-based system would be better?
+ * opaque is data provided by the code requesting creation of the filter,
+ * and is used to pass data to the filter.
+ */
+ int (*init)(AVFilterContext *ctx, const char *args, void *opaque);
+
+ /**
+ * Filter uninitialization function. Should deallocate any memory held
+ * by the filter, release any buffer references, etc. This does not need
+ * to deallocate the AVFilterContext->priv memory itself.
+ */
+ void (*uninit)(AVFilterContext *ctx);
+
+ /**
+ * Queries formats supported by the filter and its pads, and sets the
+ * in_formats for links connected to its output pads, and out_formats
+ * for links connected to its input pads.
+ *
+ * @return zero on success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+ int (*query_formats)(AVFilterContext *);
+
+ const AVFilterPad *inputs; ///< NULL terminated list of inputs. NULL if none
+ const AVFilterPad *outputs; ///< NULL terminated list of outputs. NULL if none
+
+ /**
+ * A description for the filter. You should use the
+ * NULL_IF_CONFIG_SMALL() macro to define it.
+ */
+ const char *description;
+} AVFilter;
+
+/** An instance of a filter */
+struct AVFilterContext {
+ const AVClass *av_class; ///< needed for av_log()
+
+ AVFilter *filter; ///< the AVFilter of which this is an instance
+
+ char *name; ///< name of this filter instance
+
+ unsigned input_count; ///< number of input pads
+ AVFilterPad *input_pads; ///< array of input pads
+ AVFilterLink **inputs; ///< array of pointers to input links
+
+ unsigned output_count; ///< number of output pads
+ AVFilterPad *output_pads; ///< array of output pads
+ AVFilterLink **outputs; ///< array of pointers to output links
+
+ void *priv; ///< private data for use by the filter
+};
+
+/**
+ * A link between two filters. This contains pointers to the source and
+ * destination filters between which this link exists, and the indexes of
+ * the pads involved. In addition, this link also contains the parameters
+ * which have been negotiated and agreed upon between the filter, such as
+ * image dimensions, format, etc.
+ */
+struct AVFilterLink {
+ AVFilterContext *src; ///< source filter
+ AVFilterPad *srcpad; ///< output pad on the source filter
+
+ AVFilterContext *dst; ///< dest filter
+ AVFilterPad *dstpad; ///< input pad on the dest filter
+
+ /** stage of the initialization of the link properties (dimensions, etc) */
+ enum {
+ AVLINK_UNINIT = 0, ///< not started
+ AVLINK_STARTINIT, ///< started, but incomplete
+ AVLINK_INIT ///< complete
+ } init_state;
+
+ enum AVMediaType type; ///< filter media type
+
+ /* These parameters apply only to video */
+ int w; ///< agreed upon image width
+ int h; ///< agreed upon image height
+ AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio
+ /* These two parameters apply only to audio */
+ int64_t channel_layout; ///< channel layout of current buffer (see libavutil/audioconvert.h)
+ int64_t sample_rate; ///< samples per second
+
+ int format; ///< agreed upon media format
+
+ /**
+ * Lists of formats supported by the input and output filters respectively.
+ * These lists are used for negotiating the format to actually be used,
+ * which will be loaded into the format member, above, when chosen.
+ */
+ AVFilterFormats *in_formats;
+ AVFilterFormats *out_formats;
+
+ /**
+ * The buffer reference currently being sent across the link by the source
+ * filter. This is used internally by the filter system to allow
+ * automatic copying of buffers which do not have sufficient permissions
+ * for the destination. This should not be accessed directly by the
+ * filters.
+ */
+ AVFilterBufferRef *src_buf;
+
+ AVFilterBufferRef *cur_buf;
+ AVFilterBufferRef *out_buf;
+
+ /**
+ * Define the time base used by the PTS of the frames/samples
+ * which will pass through this link.
+ * During the configuration stage, each filter is supposed to
+ * change only the output timebase, while the timebase of the
+ * input link is assumed to be an unchangeable property.
+ */
+ AVRational time_base;
+};
+
+/**
+ * Link two filters together.
+ *
+ * @param src the source filter
+ * @param srcpad index of the output pad on the source filter
+ * @param dst the destination filter
+ * @param dstpad index of the input pad on the destination filter
+ * @return zero on success
+ */
+int avfilter_link(AVFilterContext *src, unsigned srcpad,
+ AVFilterContext *dst, unsigned dstpad);
+
+/**
+ * Negotiate the media format, dimensions, etc of all inputs to a filter.
+ *
+ * @param filter the filter to negotiate the properties for its inputs
+ * @return zero on successful negotiation
+ */
+int avfilter_config_links(AVFilterContext *filter);
+
+/**
+ * Request a picture buffer with a specific set of permissions.
+ *
+ * @param link the output link to the filter from which the buffer will
+ * be requested
+ * @param perms the required access permissions
+ * @param w the minimum width of the buffer to allocate
+ * @param h the minimum height of the buffer to allocate
+ * @return A reference to the buffer. This must be unreferenced with
+ * avfilter_unref_buffer when you are finished with it.
+ */
+AVFilterBufferRef *avfilter_get_video_buffer(AVFilterLink *link, int perms,
+ int w, int h);
+
+/**
+ * Create a buffer reference wrapped around an already allocated image
+ * buffer.
+ *
+ * @param data pointers to the planes of the image to reference
+ * @param linesize linesizes for the planes of the image to reference
+ * @param perms the required access permissions
+ * @param w the width of the image specified by the data and linesize arrays
+ * @param h the height of the image specified by the data and linesize arrays
+ * @param format the pixel format of the image specified by the data and linesize arrays
+ */
+AVFilterBufferRef *
+avfilter_get_video_buffer_ref_from_arrays(uint8_t *data[4], int linesize[4], int perms,
+ int w, int h, enum PixelFormat format);
+
+/**
+ * Request an audio samples buffer with a specific set of permissions.
+ *
+ * @param link the output link to the filter from which the buffer will
+ * be requested
+ * @param perms the required access permissions
+ * @param sample_fmt the format of each sample in the buffer to allocate
+ * @param size the buffer size in bytes
+ * @param channel_layout the number and type of channels per sample in the buffer to allocate
+ * @param planar audio data layout - planar or packed
+ * @return A reference to the samples. This must be unreferenced with
+ * avfilter_unref_buffer when you are finished with it.
+ */
+AVFilterBufferRef *avfilter_get_audio_buffer(AVFilterLink *link, int perms,
+ enum AVSampleFormat sample_fmt, int size,
+ int64_t channel_layout, int planar);
+
+/**
+ * Request an input frame from the filter at the other end of the link.
+ *
+ * @param link the input link
+ * @return zero on success
+ */
+int avfilter_request_frame(AVFilterLink *link);
+
+/**
+ * Poll a frame from the filter chain.
+ *
+ * @param link the input link
+ * @return the number of immediately available frames, a negative
+ * number in case of error
+ */
+int avfilter_poll_frame(AVFilterLink *link);
+
+/**
+ * Notifie the next filter of the start of a frame.
+ *
+ * @param link the output link the frame will be sent over
+ * @param picref A reference to the frame about to be sent. The data for this
+ * frame need only be valid once draw_slice() is called for that
+ * portion. The receiving filter will free this reference when
+ * it no longer needs it.
+ */
+void avfilter_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
+
+/**
+ * Notifie the next filter that the current frame has finished.
+ *
+ * @param link the output link the frame was sent over
+ */
+void avfilter_end_frame(AVFilterLink *link);
+
+/**
+ * Send a slice to the next filter.
+ *
+ * Slices have to be provided in sequential order, either in
+ * top-bottom or bottom-top order. If slices are provided in
+ * non-sequential order the behavior of the function is undefined.
+ *
+ * @param link the output link over which the frame is being sent
+ * @param y offset in pixels from the top of the image for this slice
+ * @param h height of this slice in pixels
+ * @param slice_dir the assumed direction for sending slices,
+ * from the top slice to the bottom slice if the value is 1,
+ * from the bottom slice to the top slice if the value is -1,
+ * for other values the behavior of the function is undefined.
+ */
+void avfilter_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
+
+/**
+ * Send a buffer of audio samples to the next filter.
+ *
+ * @param link the output link over which the audio samples are being sent
+ * @param samplesref a reference to the buffer of audio samples being sent. The
+ * receiving filter will free this reference when it no longer
+ * needs it or pass it on to the next filter.
+ */
+void avfilter_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref);
+
+/** Initialize the filter system. Register all builtin filters. */
+void avfilter_register_all(void);
+
+/** Uninitialize the filter system. Unregister all filters. */
+void avfilter_uninit(void);
+
+/**
+ * Register a filter. This is only needed if you plan to use
+ * avfilter_get_by_name later to lookup the AVFilter structure by name. A
+ * filter can still by instantiated with avfilter_open even if it is not
+ * registered.
+ *
+ * @param filter the filter to register
+ * @return 0 if the registration was succesfull, a negative value
+ * otherwise
+ */
+int avfilter_register(AVFilter *filter);
+
+/**
+ * Get a filter definition matching the given name.
+ *
+ * @param name the filter name to find
+ * @return the filter definition, if any matching one is registered.
+ * NULL if none found.
+ */
+AVFilter *avfilter_get_by_name(const char *name);
+
+/**
+ * If filter is NULL, returns a pointer to the first registered filter pointer,
+ * if filter is non-NULL, returns the next pointer after filter.
+ * If the returned pointer points to NULL, the last registered filter
+ * was already reached.
+ */
+AVFilter **av_filter_next(AVFilter **filter);
+
+/**
+ * Create a filter instance.
+ *
+ * @param filter_ctx put here a pointer to the created filter context
+ * on success, NULL on failure
+ * @param filter the filter to create an instance of
+ * @param inst_name Name to give to the new instance. Can be NULL for none.
+ * @return >= 0 in case of success, a negative error code otherwise
+ */
+int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
+
+/**
+ * Initialize a filter.
+ *
+ * @param filter the filter to initialize
+ * @param args A string of parameters to use when initializing the filter.
+ * The format and meaning of this string varies by filter.
+ * @param opaque Any extra non-string data needed by the filter. The meaning
+ * of this parameter varies by filter.
+ * @return zero on success
+ */
+int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque);
+
+/**
+ * Free a filter context.
+ *
+ * @param filter the filter to free
+ */
+void avfilter_free(AVFilterContext *filter);
+
+/**
+ * Insert a filter in the middle of an existing link.
+ *
+ * @param link the link into which the filter should be inserted
+ * @param filt the filter to be inserted
+ * @param filt_srcpad_idx the input pad on the filter to connect
+ * @param filt_dstpad_idx the output pad on the filter to connect
+ * @return zero on success
+ */
+int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
+ unsigned filt_srcpad_idx, unsigned filt_dstpad_idx);
+
+/**
+ * Insert a new pad.
+ *
+ * @param idx Insertion point. Pad is inserted at the end if this point
+ * is beyond the end of the list of pads.
+ * @param count Pointer to the number of pads in the list
+ * @param padidx_off Offset within an AVFilterLink structure to the element
+ * to increment when inserting a new pad causes link
+ * numbering to change
+ * @param pads Pointer to the pointer to the beginning of the list of pads
+ * @param links Pointer to the pointer to the beginning of the list of links
+ * @param newpad The new pad to add. A copy is made when adding.
+ */
+void avfilter_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
+ AVFilterPad **pads, AVFilterLink ***links,
+ AVFilterPad *newpad);
+
+/** Insert a new input pad for the filter. */
+static inline void avfilter_insert_inpad(AVFilterContext *f, unsigned index,
+ AVFilterPad *p)
+{
+ avfilter_insert_pad(index, &f->input_count, offsetof(AVFilterLink, dstpad),
+ &f->input_pads, &f->inputs, p);
+}
+
+/** Insert a new output pad for the filter. */
+static inline void avfilter_insert_outpad(AVFilterContext *f, unsigned index,
+ AVFilterPad *p)
+{
+ avfilter_insert_pad(index, &f->output_count, offsetof(AVFilterLink, srcpad),
+ &f->output_pads, &f->outputs, p);
+}
+
+#endif /* AVFILTER_AVFILTER_H */
--- /dev/null
+/*
+ * Filter graphs
+ * copyright (c) 2007 Bobby Bingham
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_AVFILTERGRAPH_H
+#define AVFILTER_AVFILTERGRAPH_H
+
+#include "avfilter.h"
+
+typedef struct AVFilterGraph {
+ unsigned filter_count;
+ AVFilterContext **filters;
+
+ char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters
+} AVFilterGraph;
+
+/**
+ * Allocate a filter graph.
+ */
+AVFilterGraph *avfilter_graph_alloc(void);
+
+/**
+ * Get a filter instance with name name from graph.
+ *
+ * @return the pointer to the found filter instance or NULL if it
+ * cannot be found.
+ */
+AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name);
+
+/**
+ * Add an existing filter instance to a filter graph.
+ *
+ * @param graphctx the filter graph
+ * @param filter the filter to be added
+ */
+int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter);
+
+/**
+ * Create and add a filter instance into an existing graph.
+ * The filter instance is created from the filter filt and inited
+ * with the parameters args and opaque.
+ *
+ * In case of success put in *filt_ctx the pointer to the created
+ * filter instance, otherwise set *filt_ctx to NULL.
+ *
+ * @param name the instance name to give to the created filter instance
+ * @param graph_ctx the filter graph
+ * @return a negative AVERROR error code in case of failure, a non
+ * negative value otherwise
+ */
+int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt,
+ const char *name, const char *args, void *opaque,
+ AVFilterGraph *graph_ctx);
+
+/**
+ * Check validity and configure all the links and formats in the graph.
+ *
+ * @param graphctx the filter graph
+ * @param log_ctx context used for logging
+ * @return 0 in case of success, a negative AVERROR code otherwise
+ */
+int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx);
+
+/**
+ * Free a graph, destroy its links, and set *graph to NULL.
+ * If *graph is NULL, do nothing.
+ */
+void avfilter_graph_free(AVFilterGraph **graph);
+
+/**
+ * A linked-list of the inputs/outputs of the filter chain.
+ *
+ * This is mainly useful for avfilter_graph_parse(), since this
+ * function may accept a description of a graph with not connected
+ * input/output pads. This struct specifies, per each not connected
+ * pad contained in the graph, the filter context and the pad index
+ * required for establishing a link.
+ */
+typedef struct AVFilterInOut {
+ /** unique name for this input/output in the list */
+ char *name;
+
+ /** filter context associated to this input/output */
+ AVFilterContext *filter_ctx;
+
+ /** index of the filt_ctx pad to use for linking */
+ int pad_idx;
+
+ /** next input/input in the list, NULL if this is the last */
+ struct AVFilterInOut *next;
+} AVFilterInOut;
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * @param graph the filter graph where to link the parsed graph context
+ * @param filters string to be parsed
+ * @param inputs linked list to the inputs of the graph
+ * @param outputs linked list to the outputs of the graph
+ * @return zero on success, a negative AVERROR code on error
+ */
+int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
+ AVFilterInOut *inputs, AVFilterInOut *outputs,
+ AVClass *log_ctx);
+
+#endif /* AVFILTER_AVFILTERGRAPH_H */
--- /dev/null
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_AVFORMAT_H
+#define AVFORMAT_AVFORMAT_H
+
+
+/**
+ * Return the LIBAVFORMAT_VERSION_INT constant.
+ */
+unsigned avformat_version(void);
+
+/**
+ * Return the libavformat build-time configuration.
+ */
+const char *avformat_configuration(void);
+
+/**
+ * Return the libavformat license.
+ */
+const char *avformat_license(void);
+
+#include <time.h>
+#include <stdio.h> /* FILE */
+#include "libavcodec/avcodec.h"
+#include "libavutil/dict.h"
+
+#include "avio.h"
+#include "libavformat/version.h"
+
+struct AVFormatContext;
+
+
+/**
+ * @defgroup metadata_api Public Metadata API
+ * @{
+ * The metadata API allows libavformat to export metadata tags to a client
+ * application using a sequence of key/value pairs. Like all strings in Libav,
+ * metadata must be stored as UTF-8 encoded Unicode. Note that metadata
+ * exported by demuxers isn't checked to be valid UTF-8 in most cases.
+ * Important concepts to keep in mind:
+ * - Keys are unique; there can never be 2 tags with the same key. This is
+ * also meant semantically, i.e., a demuxer should not knowingly produce
+ * several keys that are literally different but semantically identical.
+ * E.g., key=Author5, key=Author6. In this example, all authors must be
+ * placed in the same tag.
+ * - Metadata is flat, not hierarchical; there are no subtags. If you
+ * want to store, e.g., the email address of the child of producer Alice
+ * and actor Bob, that could have key=alice_and_bobs_childs_email_address.
+ * - Several modifiers can be applied to the tag name. This is done by
+ * appending a dash character ('-') and the modifier name in the order
+ * they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng.
+ * - language -- a tag whose value is localized for a particular language
+ * is appended with the ISO 639-2/B 3-letter language code.
+ * For example: Author-ger=Michael, Author-eng=Mike
+ * The original/default language is in the unqualified "Author" tag.
+ * A demuxer should set a default if it sets any translated tag.
+ * - sorting -- a modified version of a tag that should be used for
+ * sorting will have '-sort' appended. E.g. artist="The Beatles",
+ * artist-sort="Beatles, The".
+ *
+ * - Demuxers attempt to export metadata in a generic format, however tags
+ * with no generic equivalents are left as they are stored in the container.
+ * Follows a list of generic tag names:
+ *
+ @verbatim
+ album -- name of the set this work belongs to
+ album_artist -- main creator of the set/album, if different from artist.
+ e.g. "Various Artists" for compilation albums.
+ artist -- main creator of the work
+ comment -- any additional description of the file.
+ composer -- who composed the work, if different from artist.
+ copyright -- name of copyright holder.
+ creation_time-- date when the file was created, preferably in ISO 8601.
+ date -- date when the work was created, preferably in ISO 8601.
+ disc -- number of a subset, e.g. disc in a multi-disc collection.
+ encoder -- name/settings of the software/hardware that produced the file.
+ encoded_by -- person/group who created the file.
+ filename -- original name of the file.
+ genre -- <self-evident>.
+ language -- main language in which the work is performed, preferably
+ in ISO 639-2 format. Multiple languages can be specified by
+ separating them with commas.
+ performer -- artist who performed the work, if different from artist.
+ E.g for "Also sprach Zarathustra", artist would be "Richard
+ Strauss" and performer "London Philharmonic Orchestra".
+ publisher -- name of the label/publisher.
+ service_name -- name of the service in broadcasting (channel name).
+ service_provider -- name of the service provider in broadcasting.
+ title -- name of the work.
+ track -- number of this work in the set, can be in form current/total.
+ variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of
+ @endverbatim
+ *
+ * Look in the examples section for an application example how to use the Metadata API.
+ *
+ * @}
+ */
+
+#if FF_API_OLD_METADATA2
+/**
+ * @defgroup old_metadata Old metadata API
+ * The following functions are deprecated, use
+ * their equivalents from libavutil/dict.h instead.
+ * @{
+ */
+
+#define AV_METADATA_MATCH_CASE AV_DICT_MATCH_CASE
+#define AV_METADATA_IGNORE_SUFFIX AV_DICT_IGNORE_SUFFIX
+#define AV_METADATA_DONT_STRDUP_KEY AV_DICT_DONT_STRDUP_KEY
+#define AV_METADATA_DONT_STRDUP_VAL AV_DICT_DONT_STRDUP_VAL
+#define AV_METADATA_DONT_OVERWRITE AV_DICT_DONT_OVERWRITE
+
+typedef attribute_deprecated AVDictionary AVMetadata;
+typedef attribute_deprecated AVDictionaryEntry AVMetadataTag;
+
+typedef struct AVMetadataConv AVMetadataConv;
+
+/**
+ * Get a metadata element with matching key.
+ *
+ * @param prev Set to the previous matching element to find the next.
+ * If set to NULL the first matching element is returned.
+ * @param flags Allows case as well as suffix-insensitive comparisons.
+ * @return Found tag or NULL, changing key or value leads to undefined behavior.
+ */
+attribute_deprecated AVDictionaryEntry *
+av_metadata_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags);
+
+/**
+ * Set the given tag in *pm, overwriting an existing tag.
+ *
+ * @param pm pointer to a pointer to a metadata struct. If *pm is NULL
+ * a metadata struct is allocated and put in *pm.
+ * @param key tag key to add to *pm (will be av_strduped depending on flags)
+ * @param value tag value to add to *pm (will be av_strduped depending on flags).
+ * Passing a NULL value will cause an existing tag to be deleted.
+ * @return >= 0 on success otherwise an error code <0
+ */
+attribute_deprecated int av_metadata_set2(AVDictionary **pm, const char *key, const char *value, int flags);
+
+/**
+ * This function is provided for compatibility reason and currently does nothing.
+ */
+attribute_deprecated void av_metadata_conv(struct AVFormatContext *ctx, const AVMetadataConv *d_conv,
+ const AVMetadataConv *s_conv);
+
+/**
+ * Copy metadata from one AVDictionary struct into another.
+ * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL,
+ * this function will allocate a struct for you and put it in *dst
+ * @param src pointer to source AVDictionary struct
+ * @param flags flags to use when setting metadata in *dst
+ * @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag
+ */
+attribute_deprecated void av_metadata_copy(AVDictionary **dst, AVDictionary *src, int flags);
+
+/**
+ * Free all the memory allocated for an AVDictionary struct.
+ */
+attribute_deprecated void av_metadata_free(AVDictionary **m);
+/**
+ * @}
+ */
+#endif
+
+
+/* packet functions */
+
+
+/**
+ * Allocate and read the payload of a packet and initialize its
+ * fields with default values.
+ *
+ * @param pkt packet
+ * @param size desired payload size
+ * @return >0 (read size) if OK, AVERROR_xxx otherwise
+ */
+int av_get_packet(AVIOContext *s, AVPacket *pkt, int size);
+
+
+/**
+ * Read data and append it to the current content of the AVPacket.
+ * If pkt->size is 0 this is identical to av_get_packet.
+ * Note that this uses av_grow_packet and thus involves a realloc
+ * which is inefficient. Thus this function should only be used
+ * when there is no reasonable way to know (an upper bound of)
+ * the final size.
+ *
+ * @param pkt packet
+ * @param size amount of data to read
+ * @return >0 (read size) if OK, AVERROR_xxx otherwise, previous data
+ * will not be lost even if an error occurs.
+ */
+int av_append_packet(AVIOContext *s, AVPacket *pkt, int size);
+
+/*************************************************/
+/* fractional numbers for exact pts handling */
+
+/**
+ * The exact value of the fractional number is: 'val + num / den'.
+ * num is assumed to be 0 <= num < den.
+ */
+typedef struct AVFrac {
+ int64_t val, num, den;
+} AVFrac;
+
+/*************************************************/
+/* input/output formats */
+
+struct AVCodecTag;
+
+/**
+ * This structure contains the data a format has to probe a file.
+ */
+typedef struct AVProbeData {
+ const char *filename;
+ unsigned char *buf; /**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. */
+ int buf_size; /**< Size of buf except extra allocated bytes */
+} AVProbeData;
+
+#define AVPROBE_SCORE_MAX 100 ///< maximum score, half of that is used for file-extension-based detection
+#define AVPROBE_PADDING_SIZE 32 ///< extra allocated bytes at the end of the probe buffer
+
+typedef struct AVFormatParameters {
+#if FF_API_FORMAT_PARAMETERS
+ attribute_deprecated AVRational time_base;
+ attribute_deprecated int sample_rate;
+ attribute_deprecated int channels;
+ attribute_deprecated int width;
+ attribute_deprecated int height;
+ attribute_deprecated enum PixelFormat pix_fmt;
+ attribute_deprecated int channel; /**< Used to select DV channel. */
+ attribute_deprecated const char *standard; /**< deprecated, use demuxer-specific options instead. */
+ attribute_deprecated unsigned int mpeg2ts_raw:1; /**< deprecated, use mpegtsraw demuxer */
+ /**< deprecated, use mpegtsraw demuxer-specific options instead */
+ attribute_deprecated unsigned int mpeg2ts_compute_pcr:1;
+ attribute_deprecated unsigned int initial_pause:1; /**< Do not begin to play the stream
+ immediately (RTSP only). */
+ attribute_deprecated unsigned int prealloced_context:1;
+#endif
+} AVFormatParameters;
+
+//! Demuxer will use avio_open, no opened file should be provided by the caller.
+#define AVFMT_NOFILE 0x0001
+#define AVFMT_NEEDNUMBER 0x0002 /**< Needs '%d' in filename. */
+#define AVFMT_SHOW_IDS 0x0008 /**< Show format stream IDs numbers. */
+#define AVFMT_RAWPICTURE 0x0020 /**< Format wants AVPicture structure for
+ raw picture data. */
+#define AVFMT_GLOBALHEADER 0x0040 /**< Format wants global header. */
+#define AVFMT_NOTIMESTAMPS 0x0080 /**< Format does not need / have any timestamps. */
+#define AVFMT_GENERIC_INDEX 0x0100 /**< Use generic index building code. */
+#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. Note, muxers always require valid (monotone) timestamps */
+#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */
+#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */
+#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */
+#define AVFMT_NOBINSEARCH 0x2000 /**< Format does not allow to fallback to binary search via read_timestamp */
+#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fallback to generic search */
+
+typedef struct AVOutputFormat {
+ const char *name;
+ /**
+ * Descriptive name for the format, meant to be more human-readable
+ * than name. You should use the NULL_IF_CONFIG_SMALL() macro
+ * to define it.
+ */
+ const char *long_name;
+ const char *mime_type;
+ const char *extensions; /**< comma-separated filename extensions */
+ /**
+ * size of private data so that it can be allocated in the wrapper
+ */
+ int priv_data_size;
+ /* output support */
+ enum CodecID audio_codec; /**< default audio codec */
+ enum CodecID video_codec; /**< default video codec */
+ int (*write_header)(struct AVFormatContext *);
+ int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
+ int (*write_trailer)(struct AVFormatContext *);
+ /**
+ * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_RAWPICTURE,
+ * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS,
+ * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS
+ */
+ int flags;
+ /**
+ * Currently only used to set pixel format if not YUV420P.
+ */
+ int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
+ int (*interleave_packet)(struct AVFormatContext *, AVPacket *out,
+ AVPacket *in, int flush);
+
+ /**
+ * List of supported codec_id-codec_tag pairs, ordered by "better
+ * choice first". The arrays are all terminated by CODEC_ID_NONE.
+ */
+ const struct AVCodecTag * const *codec_tag;
+
+ enum CodecID subtitle_codec; /**< default subtitle codec */
+
+#if FF_API_OLD_METADATA2
+ const AVMetadataConv *metadata_conv;
+#endif
+
+ const AVClass *priv_class; ///< AVClass for the private context
+
+ /* private fields */
+ struct AVOutputFormat *next;
+} AVOutputFormat;
+
+typedef struct AVInputFormat {
+ /**
+ * A comma separated list of short names for the format. New names
+ * may be appended with a minor bump.
+ */
+ const char *name;
+
+ /**
+ * Descriptive name for the format, meant to be more human-readable
+ * than name. You should use the NULL_IF_CONFIG_SMALL() macro
+ * to define it.
+ */
+ const char *long_name;
+
+ /**
+ * Size of private data so that it can be allocated in the wrapper.
+ */
+ int priv_data_size;
+
+ /**
+ * Tell if a given file has a chance of being parsed as this format.
+ * The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes
+ * big so you do not have to check for that unless you need more.
+ */
+ int (*read_probe)(AVProbeData *);
+
+ /**
+ * Read the format header and initialize the AVFormatContext
+ * structure. Return 0 if OK. 'ap' if non-NULL contains
+ * additional parameters. Only used in raw format right
+ * now. 'av_new_stream' should be called to create new streams.
+ */
+ int (*read_header)(struct AVFormatContext *,
+ AVFormatParameters *ap);
+
+ /**
+ * Read one packet and put it in 'pkt'. pts and flags are also
+ * set. 'av_new_stream' can be called only if the flag
+ * AVFMTCTX_NOHEADER is used and only in the calling thread (not in a
+ * background thread).
+ * @return 0 on success, < 0 on error.
+ * When returning an error, pkt must not have been allocated
+ * or must be freed before returning
+ */
+ int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
+
+ /**
+ * Close the stream. The AVFormatContext and AVStreams are not
+ * freed by this function
+ */
+ int (*read_close)(struct AVFormatContext *);
+
+#if FF_API_READ_SEEK
+ /**
+ * Seek to a given timestamp relative to the frames in
+ * stream component stream_index.
+ * @param stream_index Must not be -1.
+ * @param flags Selects which direction should be preferred if no exact
+ * match is available.
+ * @return >= 0 on success (but not necessarily the new offset)
+ */
+ attribute_deprecated int (*read_seek)(struct AVFormatContext *,
+ int stream_index, int64_t timestamp, int flags);
+#endif
+ /**
+ * Gets the next timestamp in stream[stream_index].time_base units.
+ * @return the timestamp or AV_NOPTS_VALUE if an error occurred
+ */
+ int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
+ int64_t *pos, int64_t pos_limit);
+
+ /**
+ * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER.
+ */
+ int flags;
+
+ /**
+ * If extensions are defined, then no probe is done. You should
+ * usually not use extension format guessing because it is not
+ * reliable enough
+ */
+ const char *extensions;
+
+ /**
+ * General purpose read-only value that the format can use.
+ */
+ int value;
+
+ /**
+ * Start/resume playing - only meaningful if using a network-based format
+ * (RTSP).
+ */
+ int (*read_play)(struct AVFormatContext *);
+
+ /**
+ * Pause playing - only meaningful if using a network-based format
+ * (RTSP).
+ */
+ int (*read_pause)(struct AVFormatContext *);
+
+ const struct AVCodecTag * const *codec_tag;
+
+ /**
+ * Seek to timestamp ts.
+ * Seeking will be done so that the point from which all active streams
+ * can be presented successfully will be closest to ts and within min/max_ts.
+ * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
+ */
+ int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
+
+#if FF_API_OLD_METADATA2
+ const AVMetadataConv *metadata_conv;
+#endif
+
+ const AVClass *priv_class; ///< AVClass for the private context
+
+ /* private fields */
+ struct AVInputFormat *next;
+} AVInputFormat;
+
+enum AVStreamParseType {
+ AVSTREAM_PARSE_NONE,
+ AVSTREAM_PARSE_FULL, /**< full parsing and repack */
+ AVSTREAM_PARSE_HEADERS, /**< Only parse headers, do not repack. */
+ AVSTREAM_PARSE_TIMESTAMPS, /**< full parsing and interpolation of timestamps for frames not starting on a packet boundary */
+ AVSTREAM_PARSE_FULL_ONCE, /**< full parsing and repack of the first frame only, only implemented for H.264 currently */
+};
+
+typedef struct AVIndexEntry {
+ int64_t pos;
+ int64_t timestamp;
+#define AVINDEX_KEYFRAME 0x0001
+ int flags:2;
+ int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs. 32 bytes due to possible 8-byte alignment).
+ int min_distance; /**< Minimum distance between this and the previous keyframe, used to avoid unneeded searching. */
+} AVIndexEntry;
+
+#define AV_DISPOSITION_DEFAULT 0x0001
+#define AV_DISPOSITION_DUB 0x0002
+#define AV_DISPOSITION_ORIGINAL 0x0004
+#define AV_DISPOSITION_COMMENT 0x0008
+#define AV_DISPOSITION_LYRICS 0x0010
+#define AV_DISPOSITION_KARAOKE 0x0020
+
+/**
+ * Track should be used during playback by default.
+ * Useful for subtitle track that should be displayed
+ * even when user did not explicitly ask for subtitles.
+ */
+#define AV_DISPOSITION_FORCED 0x0040
+#define AV_DISPOSITION_HEARING_IMPAIRED 0x0080 /**< stream for hearing impaired audiences */
+#define AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 /**< stream for visual impaired audiences */
+#define AV_DISPOSITION_CLEAN_EFFECTS 0x0200 /**< stream without voice */
+
+/**
+ * Stream structure.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVStream) must not be used outside libav*.
+ */
+typedef struct AVStream {
+ int index; /**< stream index in AVFormatContext */
+ int id; /**< format-specific stream ID */
+ AVCodecContext *codec; /**< codec context */
+ /**
+ * Real base framerate of the stream.
+ * This is the lowest framerate with which all timestamps can be
+ * represented accurately (it is the least common multiple of all
+ * framerates in the stream). Note, this value is just a guess!
+ * For example, if the time base is 1/90000 and all frames have either
+ * approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1.
+ */
+ AVRational r_frame_rate;
+ void *priv_data;
+
+ /* internal data used in av_find_stream_info() */
+ int64_t first_dts;
+
+ /**
+ * encoding: pts generation when outputting stream
+ */
+ struct AVFrac pts;
+
+ /**
+ * This is the fundamental unit of time (in seconds) in terms
+ * of which frame timestamps are represented. For fixed-fps content,
+ * time base should be 1/framerate and timestamp increments should be 1.
+ * decoding: set by libavformat
+ * encoding: set by libavformat in av_write_header
+ */
+ AVRational time_base;
+ int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */
+ /* ffmpeg.c private use */
+ int stream_copy; /**< If set, just copy stream. */
+ enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed.
+
+ //FIXME move stuff to a flags field?
+ /**
+ * Quality, as it has been removed from AVCodecContext and put in AVVideoFrame.
+ * MN: dunno if that is the right place for it
+ */
+ float quality;
+
+ /**
+ * Decoding: pts of the first frame of the stream, in stream time base.
+ * Only set this if you are absolutely 100% sure that the value you set
+ * it to really is the pts of the first frame.
+ * This may be undefined (AV_NOPTS_VALUE).
+ */
+ int64_t start_time;
+
+ /**
+ * Decoding: duration of the stream, in stream time base.
+ * If a source file does not specify a duration, but does specify
+ * a bitrate, this value will be estimated from bitrate and file size.
+ */
+ int64_t duration;
+
+ /* av_read_frame() support */
+ enum AVStreamParseType need_parsing;
+ struct AVCodecParserContext *parser;
+
+ int64_t cur_dts;
+ int last_IP_duration;
+ int64_t last_IP_pts;
+ /* av_seek_frame() support */
+ AVIndexEntry *index_entries; /**< Only used if the format does not
+ support seeking natively. */
+ int nb_index_entries;
+ unsigned int index_entries_allocated_size;
+
+ int64_t nb_frames; ///< number of frames in this stream if known or 0
+
+ int disposition; /**< AV_DISPOSITION_* bit field */
+
+ AVProbeData probe_data;
+#define MAX_REORDER_DELAY 16
+ int64_t pts_buffer[MAX_REORDER_DELAY+1];
+
+ /**
+ * sample aspect ratio (0 if unknown)
+ * - encoding: Set by user.
+ * - decoding: Set by libavformat.
+ */
+ AVRational sample_aspect_ratio;
+
+ AVDictionary *metadata;
+
+ /* Intended mostly for av_read_frame() support. Not supposed to be used by */
+ /* external applications; try to use something else if at all possible. */
+ const uint8_t *cur_ptr;
+ int cur_len;
+ AVPacket cur_pkt;
+
+ // Timestamp generation support:
+ /**
+ * Timestamp corresponding to the last dts sync point.
+ *
+ * Initialized when AVCodecParserContext.dts_sync_point >= 0 and
+ * a DTS is received from the underlying container. Otherwise set to
+ * AV_NOPTS_VALUE by default.
+ */
+ int64_t reference_dts;
+
+ /**
+ * Number of packets to buffer for codec probing
+ * NOT PART OF PUBLIC API
+ */
+#define MAX_PROBE_PACKETS 2500
+ int probe_packets;
+
+ /**
+ * last packet in packet_buffer for this stream when muxing.
+ * used internally, NOT PART OF PUBLIC API, dont read or write from outside of libav*
+ */
+ struct AVPacketList *last_in_packet_buffer;
+
+ /**
+ * Average framerate
+ */
+ AVRational avg_frame_rate;
+
+ /**
+ * Number of frames that have been demuxed during av_find_stream_info()
+ */
+ int codec_info_nb_frames;
+
+ /**
+ * Stream informations used internally by av_find_stream_info()
+ */
+#define MAX_STD_TIMEBASES (60*12+5)
+ struct {
+ int64_t last_dts;
+ int64_t duration_gcd;
+ int duration_count;
+ double duration_error[MAX_STD_TIMEBASES];
+ int64_t codec_info_duration;
+ } *info;
+} AVStream;
+
+#define AV_PROGRAM_RUNNING 1
+
+/**
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVProgram) must not be used outside libav*.
+ */
+typedef struct AVProgram {
+ int id;
+ int flags;
+ enum AVDiscard discard; ///< selects which program to discard and which to feed to the caller
+ unsigned int *stream_index;
+ unsigned int nb_stream_indexes;
+ AVDictionary *metadata;
+} AVProgram;
+
+#define AVFMTCTX_NOHEADER 0x0001 /**< signal that no header is present
+ (streams are added dynamically) */
+
+typedef struct AVChapter {
+ int id; ///< unique ID to identify the chapter
+ AVRational time_base; ///< time base in which the start/end timestamps are specified
+ int64_t start, end; ///< chapter start/end time in time_base units
+ AVDictionary *metadata;
+} AVChapter;
+
+/**
+ * Format I/O context.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVFormatContext) must not be used outside libav*.
+ */
+typedef struct AVFormatContext {
+ const AVClass *av_class; /**< Set by avformat_alloc_context. */
+ /* Can only be iformat or oformat, not both at the same time. */
+ struct AVInputFormat *iformat;
+ struct AVOutputFormat *oformat;
+ void *priv_data;
+ AVIOContext *pb;
+ unsigned int nb_streams;
+ AVStream **streams;
+ char filename[1024]; /**< input or output filename */
+ /* stream info */
+ int64_t timestamp;
+
+ int ctx_flags; /**< Format-specific flags, see AVFMTCTX_xx */
+ /* private data for pts handling (do not modify directly). */
+ /**
+ * This buffer is only needed when packets were already buffered but
+ * not decoded, for example to get the codec parameters in MPEG
+ * streams.
+ */
+ struct AVPacketList *packet_buffer;
+
+ /**
+ * Decoding: position of the first frame of the component, in
+ * AV_TIME_BASE fractional seconds. NEVER set this value directly:
+ * It is deduced from the AVStream values.
+ */
+ int64_t start_time;
+
+ /**
+ * Decoding: duration of the stream, in AV_TIME_BASE fractional
+ * seconds. Only set this value if you know none of the individual stream
+ * durations and also dont set any of them. This is deduced from the
+ * AVStream values if not set.
+ */
+ int64_t duration;
+
+ /**
+ * decoding: total file size, 0 if unknown
+ */
+ int64_t file_size;
+
+ /**
+ * Decoding: total stream bitrate in bit/s, 0 if not
+ * available. Never set it directly if the file_size and the
+ * duration are known as Libav can compute it automatically.
+ */
+ int bit_rate;
+
+ /* av_read_frame() support */
+ AVStream *cur_st;
+
+ /* av_seek_frame() support */
+ int64_t data_offset; /**< offset of the first packet */
+
+ int mux_rate;
+ unsigned int packet_size;
+ int preload;
+ int max_delay;
+
+#define AVFMT_NOOUTPUTLOOP -1
+#define AVFMT_INFINITEOUTPUTLOOP 0
+ /**
+ * number of times to loop output in formats that support it
+ */
+ int loop_output;
+
+ int flags;
+#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames.
+#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index.
+#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input.
+#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS
+#define AVFMT_FLAG_NOFILLIN 0x0010 ///< Do not infer any values from other values, just return what is stored in the container
+#define AVFMT_FLAG_NOPARSE 0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled
+#if FF_API_FLAG_RTP_HINT
+#define AVFMT_FLAG_RTP_HINT 0x0040 ///< Deprecated, use the -movflags rtphint muxer specific AVOption instead
+#endif
+#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it.
+
+ int loop_input;
+
+ /**
+ * decoding: size of data to probe; encoding: unused.
+ */
+ unsigned int probesize;
+
+ /**
+ * Maximum time (in AV_TIME_BASE units) during which the input should
+ * be analyzed in av_find_stream_info().
+ */
+ int max_analyze_duration;
+
+ const uint8_t *key;
+ int keylen;
+
+ unsigned int nb_programs;
+ AVProgram **programs;
+
+ /**
+ * Forced video codec_id.
+ * Demuxing: Set by user.
+ */
+ enum CodecID video_codec_id;
+
+ /**
+ * Forced audio codec_id.
+ * Demuxing: Set by user.
+ */
+ enum CodecID audio_codec_id;
+
+ /**
+ * Forced subtitle codec_id.
+ * Demuxing: Set by user.
+ */
+ enum CodecID subtitle_codec_id;
+
+ /**
+ * Maximum amount of memory in bytes to use for the index of each stream.
+ * If the index exceeds this size, entries will be discarded as
+ * needed to maintain a smaller size. This can lead to slower or less
+ * accurate seeking (depends on demuxer).
+ * Demuxers for which a full in-memory index is mandatory will ignore
+ * this.
+ * muxing : unused
+ * demuxing: set by user
+ */
+ unsigned int max_index_size;
+
+ /**
+ * Maximum amount of memory in bytes to use for buffering frames
+ * obtained from realtime capture devices.
+ */
+ unsigned int max_picture_buffer;
+
+ unsigned int nb_chapters;
+ AVChapter **chapters;
+
+ /**
+ * Flags to enable debugging.
+ */
+ int debug;
+#define FF_FDEBUG_TS 0x0001
+
+ /**
+ * Raw packets from the demuxer, prior to parsing and decoding.
+ * This buffer is used for buffering packets until the codec can
+ * be identified, as parsing cannot be done without knowing the
+ * codec.
+ */
+ struct AVPacketList *raw_packet_buffer;
+ struct AVPacketList *raw_packet_buffer_end;
+
+ struct AVPacketList *packet_buffer_end;
+
+ AVDictionary *metadata;
+
+ /**
+ * Remaining size available for raw_packet_buffer, in bytes.
+ * NOT PART OF PUBLIC API
+ */
+#define RAW_PACKET_BUFFER_SIZE 2500000
+ int raw_packet_buffer_remaining_size;
+
+ /**
+ * Start time of the stream in real world time, in microseconds
+ * since the unix epoch (00:00 1st January 1970). That is, pts=0
+ * in the stream was captured at this real world time.
+ * - encoding: Set by user.
+ * - decoding: Unused.
+ */
+ int64_t start_time_realtime;
+
+ /**
+ * decoding: number of frames used to probe fps
+ */
+ int fps_probe_size;
+} AVFormatContext;
+
+typedef struct AVPacketList {
+ AVPacket pkt;
+ struct AVPacketList *next;
+} AVPacketList;
+
+/**
+ * If f is NULL, returns the first registered input format,
+ * if f is non-NULL, returns the next registered input format after f
+ * or NULL if f is the last one.
+ */
+AVInputFormat *av_iformat_next(AVInputFormat *f);
+
+/**
+ * If f is NULL, returns the first registered output format,
+ * if f is non-NULL, returns the next registered output format after f
+ * or NULL if f is the last one.
+ */
+AVOutputFormat *av_oformat_next(AVOutputFormat *f);
+
+#if FF_API_GUESS_IMG2_CODEC
+attribute_deprecated enum CodecID av_guess_image2_codec(const char *filename);
+#endif
+
+/* XXX: Use automatic init with either ELF sections or C file parser */
+/* modules. */
+
+/* utils.c */
+void av_register_input_format(AVInputFormat *format);
+void av_register_output_format(AVOutputFormat *format);
+
+/**
+ * Return the output format in the list of registered output formats
+ * which best matches the provided parameters, or return NULL if
+ * there is no match.
+ *
+ * @param short_name if non-NULL checks if short_name matches with the
+ * names of the registered formats
+ * @param filename if non-NULL checks if filename terminates with the
+ * extensions of the registered formats
+ * @param mime_type if non-NULL checks if mime_type matches with the
+ * MIME type of the registered formats
+ */
+AVOutputFormat *av_guess_format(const char *short_name,
+ const char *filename,
+ const char *mime_type);
+
+/**
+ * Guess the codec ID based upon muxer and filename.
+ */
+enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
+ const char *filename, const char *mime_type,
+ enum AVMediaType type);
+
+/**
+ * Send a nice hexadecimal dump of a buffer to the specified file stream.
+ *
+ * @param f The file stream pointer where the dump should be sent to.
+ * @param buf buffer
+ * @param size buffer size
+ *
+ * @see av_hex_dump_log, av_pkt_dump2, av_pkt_dump_log2
+ */
+void av_hex_dump(FILE *f, uint8_t *buf, int size);
+
+/**
+ * Send a nice hexadecimal dump of a buffer to the log.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param buf buffer
+ * @param size buffer size
+ *
+ * @see av_hex_dump, av_pkt_dump2, av_pkt_dump_log2
+ */
+void av_hex_dump_log(void *avcl, int level, uint8_t *buf, int size);
+
+/**
+ * Send a nice dump of a packet to the specified file stream.
+ *
+ * @param f The file stream pointer where the dump should be sent to.
+ * @param pkt packet to dump
+ * @param dump_payload True if the payload must be displayed, too.
+ * @param st AVStream that the packet belongs to
+ */
+void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st);
+
+
+/**
+ * Send a nice dump of a packet to the log.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param pkt packet to dump
+ * @param dump_payload True if the payload must be displayed, too.
+ * @param st AVStream that the packet belongs to
+ */
+void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload,
+ AVStream *st);
+
+#if FF_API_PKT_DUMP
+attribute_deprecated void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
+attribute_deprecated void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt,
+ int dump_payload);
+#endif
+
+/**
+ * Initialize libavformat and register all the muxers, demuxers and
+ * protocols. If you do not call this function, then you can select
+ * exactly which formats you want to support.
+ *
+ * @see av_register_input_format()
+ * @see av_register_output_format()
+ * @see av_register_protocol()
+ */
+void av_register_all(void);
+
+/**
+ * Get the CodecID for the given codec tag tag.
+ * If no codec id is found returns CODEC_ID_NONE.
+ *
+ * @param tags list of supported codec_id-codec_tag pairs, as stored
+ * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ */
+enum CodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag);
+
+/**
+ * Get the codec tag for the given codec id id.
+ * If no codec tag is found returns 0.
+ *
+ * @param tags list of supported codec_id-codec_tag pairs, as stored
+ * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ */
+unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum CodecID id);
+
+/* media file input */
+
+/**
+ * Find AVInputFormat based on the short name of the input format.
+ */
+AVInputFormat *av_find_input_format(const char *short_name);
+
+/**
+ * Guess the file format.
+ *
+ * @param is_opened Whether the file is already opened; determines whether
+ * demuxers with or without AVFMT_NOFILE are probed.
+ */
+AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
+
+/**
+ * Guess the file format.
+ *
+ * @param is_opened Whether the file is already opened; determines whether
+ * demuxers with or without AVFMT_NOFILE are probed.
+ * @param score_max A probe score larger that this is required to accept a
+ * detection, the variable is set to the actual detection
+ * score afterwards.
+ * If the score is <= AVPROBE_SCORE_MAX / 4 it is recommended
+ * to retry with a larger probe buffer.
+ */
+AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max);
+
+/**
+ * Probe a bytestream to determine the input format. Each time a probe returns
+ * with a score that is too low, the probe buffer size is increased and another
+ * attempt is made. When the maximum probe size is reached, the input format
+ * with the highest score is returned.
+ *
+ * @param pb the bytestream to probe
+ * @param fmt the input format is put here
+ * @param filename the filename of the stream
+ * @param logctx the log context
+ * @param offset the offset within the bytestream to probe from
+ * @param max_probe_size the maximum probe buffer size (zero for default)
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
+ const char *filename, void *logctx,
+ unsigned int offset, unsigned int max_probe_size);
+
+#if FF_API_FORMAT_PARAMETERS
+/**
+ * Allocate all the structures needed to read an input stream.
+ * This does not open the needed codecs for decoding the stream[s].
+ * @deprecated use avformat_open_input instead.
+ */
+attribute_deprecated int av_open_input_stream(AVFormatContext **ic_ptr,
+ AVIOContext *pb, const char *filename,
+ AVInputFormat *fmt, AVFormatParameters *ap);
+
+/**
+ * Open a media file as input. The codecs are not opened. Only the file
+ * header (if present) is read.
+ *
+ * @param ic_ptr The opened media file handle is put here.
+ * @param filename filename to open
+ * @param fmt If non-NULL, force the file format to use.
+ * @param buf_size optional buffer size (zero if default is OK)
+ * @param ap Additional parameters needed when opening the file
+ * (NULL if default).
+ * @return 0 if OK, AVERROR_xxx otherwise
+ *
+ * @deprecated use avformat_open_input instead.
+ */
+attribute_deprecated int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
+ AVInputFormat *fmt,
+ int buf_size,
+ AVFormatParameters *ap);
+#endif
+
+/**
+ * Open an input stream and read the header. The codecs are not opened.
+ * The stream must be closed with av_close_input_file().
+ *
+ * @param ps Pointer to user-supplied AVFormatContext (allocated by avformat_alloc_context).
+ * May be a pointer to NULL, in which case an AVFormatContext is allocated by this
+ * function and written into ps.
+ * Note that a user-supplied AVFormatContext will be freed on failure.
+ * @param filename Name of the stream to open.
+ * @param fmt If non-NULL, this parameter forces a specific input format.
+ * Otherwise the format is autodetected.
+ * @param options A dictionary filled with AVFormatContext and demuxer-private options.
+ * On return this parameter will be destroyed and replaced with a dict containing
+ * options that were not found. May be NULL.
+ *
+ * @return 0 on success, a negative AVERROR on failure.
+ *
+ * @note If you want to use custom IO, preallocate the format context and set its pb field.
+ */
+int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options);
+
+/**
+ * Allocate an AVFormatContext.
+ * avformat_free_context() can be used to free the context and everything
+ * allocated by the framework within it.
+ */
+AVFormatContext *avformat_alloc_context(void);
+
+/**
+ * Read packets of a media file to get stream information. This
+ * is useful for file formats with no headers such as MPEG. This
+ * function also computes the real framerate in case of MPEG-2 repeat
+ * frame mode.
+ * The logical file position is not changed by this function;
+ * examined packets may be buffered for later processing.
+ *
+ * @param ic media file handle
+ * @return >=0 if OK, AVERROR_xxx on error
+ * @todo Let the user decide somehow what information is needed so that
+ * we do not waste time getting stuff the user does not need.
+ */
+int av_find_stream_info(AVFormatContext *ic);
+
+/**
+ * Find the "best" stream in the file.
+ * The best stream is determined according to various heuristics as the most
+ * likely to be what the user expects.
+ * If the decoder parameter is non-NULL, av_find_best_stream will find the
+ * default decoder for the stream's codec; streams for which no decoder can
+ * be found are ignored.
+ *
+ * @param ic media file handle
+ * @param type stream type: video, audio, subtitles, etc.
+ * @param wanted_stream_nb user-requested stream number,
+ * or -1 for automatic selection
+ * @param related_stream try to find a stream related (eg. in the same
+ * program) to this one, or -1 if none
+ * @param decoder_ret if non-NULL, returns the decoder for the
+ * selected stream
+ * @param flags flags; none are currently defined
+ * @return the non-negative stream number in case of success,
+ * AVERROR_STREAM_NOT_FOUND if no stream with the requested type
+ * could be found,
+ * AVERROR_DECODER_NOT_FOUND if streams were found but no decoder
+ * @note If av_find_best_stream returns successfully and decoder_ret is not
+ * NULL, then *decoder_ret is guaranteed to be set to a valid AVCodec.
+ */
+int av_find_best_stream(AVFormatContext *ic,
+ enum AVMediaType type,
+ int wanted_stream_nb,
+ int related_stream,
+ AVCodec **decoder_ret,
+ int flags);
+
+/**
+ * Read a transport packet from a media file.
+ *
+ * This function is obsolete and should never be used.
+ * Use av_read_frame() instead.
+ *
+ * @param s media file handle
+ * @param pkt is filled
+ * @return 0 if OK, AVERROR_xxx on error
+ */
+int av_read_packet(AVFormatContext *s, AVPacket *pkt);
+
+/**
+ * Return the next frame of a stream.
+ * This function returns what is stored in the file, and does not validate
+ * that what is there are valid frames for the decoder. It will split what is
+ * stored in the file into frames and return one for each call. It will not
+ * omit invalid data between valid frames so as to give the decoder the maximum
+ * information possible for decoding.
+ *
+ * The returned packet is valid
+ * until the next av_read_frame() or until av_close_input_file() and
+ * must be freed with av_free_packet. For video, the packet contains
+ * exactly one frame. For audio, it contains an integer number of
+ * frames if each frame has a known fixed size (e.g. PCM or ADPCM
+ * data). If the audio frames have a variable size (e.g. MPEG audio),
+ * then it contains one frame.
+ *
+ * pkt->pts, pkt->dts and pkt->duration are always set to correct
+ * values in AVStream.time_base units (and guessed if the format cannot
+ * provide them). pkt->pts can be AV_NOPTS_VALUE if the video format
+ * has B-frames, so it is better to rely on pkt->dts if you do not
+ * decompress the payload.
+ *
+ * @return 0 if OK, < 0 on error or end of file
+ */
+int av_read_frame(AVFormatContext *s, AVPacket *pkt);
+
+/**
+ * Seek to the keyframe at timestamp.
+ * 'timestamp' in 'stream_index'.
+ * @param stream_index If stream_index is (-1), a default
+ * stream is selected, and timestamp is automatically converted
+ * from AV_TIME_BASE units to the stream specific time_base.
+ * @param timestamp Timestamp in AVStream.time_base units
+ * or, if no stream is specified, in AV_TIME_BASE units.
+ * @param flags flags which select direction and seeking mode
+ * @return >= 0 on success
+ */
+int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp,
+ int flags);
+
+/**
+ * Seek to timestamp ts.
+ * Seeking will be done so that the point from which all active streams
+ * can be presented successfully will be closest to ts and within min/max_ts.
+ * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
+ *
+ * If flags contain AVSEEK_FLAG_BYTE, then all timestamps are in bytes and
+ * are the file position (this may not be supported by all demuxers).
+ * If flags contain AVSEEK_FLAG_FRAME, then all timestamps are in frames
+ * in the stream with stream_index (this may not be supported by all demuxers).
+ * Otherwise all timestamps are in units of the stream selected by stream_index
+ * or if stream_index is -1, in AV_TIME_BASE units.
+ * If flags contain AVSEEK_FLAG_ANY, then non-keyframes are treated as
+ * keyframes (this may not be supported by all demuxers).
+ *
+ * @param stream_index index of the stream which is used as time base reference
+ * @param min_ts smallest acceptable timestamp
+ * @param ts target timestamp
+ * @param max_ts largest acceptable timestamp
+ * @param flags flags
+ * @return >=0 on success, error code otherwise
+ *
+ * @note This is part of the new seek API which is still under construction.
+ * Thus do not use this yet. It may change at any time, do not expect
+ * ABI compatibility yet!
+ */
+int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
+
+/**
+ * Start playing a network-based stream (e.g. RTSP stream) at the
+ * current position.
+ */
+int av_read_play(AVFormatContext *s);
+
+/**
+ * Pause a network-based stream (e.g. RTSP stream).
+ *
+ * Use av_read_play() to resume it.
+ */
+int av_read_pause(AVFormatContext *s);
+
+/**
+ * Free a AVFormatContext allocated by av_open_input_stream.
+ * @param s context to free
+ */
+void av_close_input_stream(AVFormatContext *s);
+
+/**
+ * Close a media file (but not its codecs).
+ *
+ * @param s media file handle
+ */
+void av_close_input_file(AVFormatContext *s);
+
+/**
+ * Free an AVFormatContext and all its streams.
+ * @param s context to free
+ */
+void avformat_free_context(AVFormatContext *s);
+
+/**
+ * Add a new stream to a media file.
+ *
+ * Can only be called in the read_header() function. If the flag
+ * AVFMTCTX_NOHEADER is in the format context, then new streams
+ * can be added in read_packet too.
+ *
+ * @param s media file handle
+ * @param id file-format-dependent stream ID
+ */
+AVStream *av_new_stream(AVFormatContext *s, int id);
+AVProgram *av_new_program(AVFormatContext *s, int id);
+
+/**
+ * Set the pts for a given stream. If the new values would be invalid
+ * (<= 0), it leaves the AVStream unchanged.
+ *
+ * @param s stream
+ * @param pts_wrap_bits number of bits effectively used by the pts
+ * (used for wrap control, 33 is the value for MPEG)
+ * @param pts_num numerator to convert to seconds (MPEG: 1)
+ * @param pts_den denominator to convert to seconds (MPEG: 90000)
+ */
+void av_set_pts_info(AVStream *s, int pts_wrap_bits,
+ unsigned int pts_num, unsigned int pts_den);
+
+#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
+#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
+#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non-keyframes
+#define AVSEEK_FLAG_FRAME 8 ///< seeking based on frame number
+
+int av_find_default_stream_index(AVFormatContext *s);
+
+/**
+ * Get the index for a specific timestamp.
+ * @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond
+ * to the timestamp which is <= the requested one, if backward
+ * is 0, then it will be >=
+ * if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise
+ * @return < 0 if no such timestamp could be found
+ */
+int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
+
+/**
+ * Add an index entry into a sorted list. Update the entry if the list
+ * already contains it.
+ *
+ * @param timestamp timestamp in the time base of the given stream
+ */
+int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp,
+ int size, int distance, int flags);
+
+/**
+ * Perform a binary search using av_index_search_timestamp() and
+ * AVInputFormat.read_timestamp().
+ * This is not supposed to be called directly by a user application,
+ * but by demuxers.
+ * @param target_ts target timestamp in the time base of the given stream
+ * @param stream_index stream number
+ */
+int av_seek_frame_binary(AVFormatContext *s, int stream_index,
+ int64_t target_ts, int flags);
+
+/**
+ * Update cur_dts of all streams based on the given timestamp and AVStream.
+ *
+ * Stream ref_st unchanged, others set cur_dts in their native time base.
+ * Only needed for timestamp wrapping or if (dts not set and pts!=dts).
+ * @param timestamp new dts expressed in time_base of param ref_st
+ * @param ref_st reference stream giving time_base of param timestamp
+ */
+void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
+
+/**
+ * Perform a binary search using read_timestamp().
+ * This is not supposed to be called directly by a user application,
+ * but by demuxers.
+ * @param target_ts target timestamp in the time base of the given stream
+ * @param stream_index stream number
+ */
+int64_t av_gen_search(AVFormatContext *s, int stream_index,
+ int64_t target_ts, int64_t pos_min,
+ int64_t pos_max, int64_t pos_limit,
+ int64_t ts_min, int64_t ts_max,
+ int flags, int64_t *ts_ret,
+ int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ));
+
+/**
+ * media file output
+ */
+#if FF_API_FORMAT_PARAMETERS
+/**
+ * @deprecated pass the options to avformat_write_header directly.
+ */
+attribute_deprecated int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
+#endif
+
+/**
+ * Split a URL string into components.
+ *
+ * The pointers to buffers for storing individual components may be null,
+ * in order to ignore that component. Buffers for components not found are
+ * set to empty strings. If the port is not found, it is set to a negative
+ * value.
+ *
+ * @param proto the buffer for the protocol
+ * @param proto_size the size of the proto buffer
+ * @param authorization the buffer for the authorization
+ * @param authorization_size the size of the authorization buffer
+ * @param hostname the buffer for the host name
+ * @param hostname_size the size of the hostname buffer
+ * @param port_ptr a pointer to store the port number in
+ * @param path the buffer for the path
+ * @param path_size the size of the path buffer
+ * @param url the URL to split
+ */
+void av_url_split(char *proto, int proto_size,
+ char *authorization, int authorization_size,
+ char *hostname, int hostname_size,
+ int *port_ptr,
+ char *path, int path_size,
+ const char *url);
+
+/**
+ * Allocate the stream private data and write the stream header to
+ * an output media file.
+ *
+ * @param s Media file handle, must be allocated with avformat_alloc_context().
+ * Its oformat field must be set to the desired output format;
+ * Its pb field must be set to an already openened AVIOContext.
+ * @param options An AVDictionary filled with AVFormatContext and muxer-private options.
+ * On return this parameter will be destroyed and replaced with a dict containing
+ * options that were not found. May be NULL.
+ *
+ * @return 0 on success, negative AVERROR on failure.
+ *
+ * @see av_opt_find, av_dict_set, avio_open, av_oformat_next.
+ */
+int avformat_write_header(AVFormatContext *s, AVDictionary **options);
+
+#if FF_API_FORMAT_PARAMETERS
+/**
+ * Allocate the stream private data and write the stream header to an
+ * output media file.
+ * @note: this sets stream time-bases, if possible to stream->codec->time_base
+ * but for some formats it might also be some other time base
+ *
+ * @param s media file handle
+ * @return 0 if OK, AVERROR_xxx on error
+ *
+ * @deprecated use avformat_write_header.
+ */
+attribute_deprecated int av_write_header(AVFormatContext *s);
+#endif
+
+/**
+ * Write a packet to an output media file.
+ *
+ * The packet shall contain one audio or video frame.
+ * The packet must be correctly interleaved according to the container
+ * specification, if not then av_interleaved_write_frame must be used.
+ *
+ * @param s media file handle
+ * @param pkt The packet, which contains the stream_index, buf/buf_size,
+ dts/pts, ...
+ * @return < 0 on error, = 0 if OK, 1 if end of stream wanted
+ */
+int av_write_frame(AVFormatContext *s, AVPacket *pkt);
+
+/**
+ * Write a packet to an output media file ensuring correct interleaving.
+ *
+ * The packet must contain one audio or video frame.
+ * If the packets are already correctly interleaved, the application should
+ * call av_write_frame() instead as it is slightly faster. It is also important
+ * to keep in mind that completely non-interleaved input will need huge amounts
+ * of memory to interleave with this, so it is preferable to interleave at the
+ * demuxer level.
+ *
+ * @param s media file handle
+ * @param pkt The packet, which contains the stream_index, buf/buf_size,
+ dts/pts, ...
+ * @return < 0 on error, = 0 if OK, 1 if end of stream wanted
+ */
+int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
+
+/**
+ * Interleave a packet per dts in an output media file.
+ *
+ * Packets with pkt->destruct == av_destruct_packet will be freed inside this
+ * function, so they cannot be used after it. Note that calling av_free_packet()
+ * on them is still safe.
+ *
+ * @param s media file handle
+ * @param out the interleaved packet will be output here
+ * @param pkt the input packet
+ * @param flush 1 if no further packets are available as input and all
+ * remaining packets should be output
+ * @return 1 if a packet was output, 0 if no packet could be output,
+ * < 0 if an error occurred
+ */
+int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
+ AVPacket *pkt, int flush);
+
+/**
+ * Write the stream trailer to an output media file and free the
+ * file private data.
+ *
+ * May only be called after a successful call to av_write_header.
+ *
+ * @param s media file handle
+ * @return 0 if OK, AVERROR_xxx on error
+ */
+int av_write_trailer(AVFormatContext *s);
+
+#if FF_API_DUMP_FORMAT
+attribute_deprecated void dump_format(AVFormatContext *ic,
+ int index,
+ const char *url,
+ int is_output);
+#endif
+
+void av_dump_format(AVFormatContext *ic,
+ int index,
+ const char *url,
+ int is_output);
+
+#if FF_API_PARSE_DATE
+/**
+ * Parse datestr and return a corresponding number of microseconds.
+ *
+ * @param datestr String representing a date or a duration.
+ * See av_parse_time() for the syntax of the provided string.
+ * @deprecated in favor of av_parse_time()
+ */
+attribute_deprecated
+int64_t parse_date(const char *datestr, int duration);
+#endif
+
+/**
+ * Get the current time in microseconds.
+ */
+int64_t av_gettime(void);
+
+#if FF_API_FIND_INFO_TAG
+/**
+ * @deprecated use av_find_info_tag in libavutil instead.
+ */
+attribute_deprecated int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
+#endif
+
+/**
+ * Return in 'buf' the path with '%d' replaced by a number.
+ *
+ * Also handles the '%0nd' format where 'n' is the total number
+ * of digits and '%%'.
+ *
+ * @param buf destination buffer
+ * @param buf_size destination buffer size
+ * @param path numbered sequence string
+ * @param number frame number
+ * @return 0 if OK, -1 on format error
+ */
+int av_get_frame_filename(char *buf, int buf_size,
+ const char *path, int number);
+
+/**
+ * Check whether filename actually is a numbered sequence generator.
+ *
+ * @param filename possible numbered sequence string
+ * @return 1 if a valid numbered sequence string, 0 otherwise
+ */
+int av_filename_number_test(const char *filename);
+
+/**
+ * Generate an SDP for an RTP session.
+ *
+ * @param ac array of AVFormatContexts describing the RTP streams. If the
+ * array is composed by only one context, such context can contain
+ * multiple AVStreams (one AVStream per RTP stream). Otherwise,
+ * all the contexts in the array (an AVCodecContext per RTP stream)
+ * must contain only one AVStream.
+ * @param n_files number of AVCodecContexts contained in ac
+ * @param buf buffer where the SDP will be stored (must be allocated by
+ * the caller)
+ * @param size the size of the buffer
+ * @return 0 if OK, AVERROR_xxx on error
+ */
+int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size);
+
+#if FF_API_SDP_CREATE
+attribute_deprecated int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size);
+#endif
+
+/**
+ * Return a positive value if the given filename has one of the given
+ * extensions, 0 otherwise.
+ *
+ * @param extensions a comma-separated list of filename extensions
+ */
+int av_match_ext(const char *filename, const char *extensions);
+
+#endif /* AVFORMAT_AVFORMAT_H */
--- /dev/null
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef AVFORMAT_AVIO_H
+#define AVFORMAT_AVIO_H
+
+/**
+ * @file
+ * Buffered I/O operations
+ */
+
+#include <stdint.h>
+
+#include "libavutil/common.h"
+#include "libavutil/log.h"
+
+#include "libavformat/version.h"
+
+
+#define AVIO_SEEKABLE_NORMAL 0x0001 /**< Seeking works like for a local file */
+
+/**
+ * Bytestream IO Context.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVIOContext) must not be used outside libav*.
+ *
+ * @note None of the function pointers in AVIOContext should be called
+ * directly, they should only be set by the client application
+ * when implementing custom I/O. Normally these are set to the
+ * function pointers specified in avio_alloc_context()
+ */
+typedef struct {
+ unsigned char *buffer; /**< Start of the buffer. */
+ int buffer_size; /**< Maximum buffer size */
+ unsigned char *buf_ptr; /**< Current position in the buffer */
+ unsigned char *buf_end; /**< End of the data, may be less than
+ buffer+buffer_size if the read function returned
+ less data than requested, e.g. for streams where
+ no more data has been received yet. */
+ void *opaque; /**< A private pointer, passed to the read/write/seek/...
+ functions. */
+ int (*read_packet)(void *opaque, uint8_t *buf, int buf_size);
+ int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
+ int64_t (*seek)(void *opaque, int64_t offset, int whence);
+ int64_t pos; /**< position in the file of the current buffer */
+ int must_flush; /**< true if the next seek should flush */
+ int eof_reached; /**< true if eof reached */
+ int write_flag; /**< true if open for writing */
+#if FF_API_OLD_AVIO
+ attribute_deprecated int is_streamed;
+#endif
+ int max_packet_size;
+ unsigned long checksum;
+ unsigned char *checksum_ptr;
+ unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size);
+ int error; /**< contains the error code or 0 if no error happened */
+ /**
+ * Pause or resume playback for network streaming protocols - e.g. MMS.
+ */
+ int (*read_pause)(void *opaque, int pause);
+ /**
+ * Seek to a given timestamp in stream with the specified stream_index.
+ * Needed for some network streaming protocols which don't support seeking
+ * to byte position.
+ */
+ int64_t (*read_seek)(void *opaque, int stream_index,
+ int64_t timestamp, int flags);
+ /**
+ * A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
+ */
+ int seekable;
+} AVIOContext;
+
+/* unbuffered I/O */
+
+#if FF_API_OLD_AVIO
+/**
+ * URL Context.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(URLContext) must not be used outside libav*.
+ * @deprecated This struct will be made private
+ */
+typedef struct URLContext {
+ const AVClass *av_class; ///< information for av_log(). Set by url_open().
+ struct URLProtocol *prot;
+ int flags;
+ int is_streamed; /**< true if streamed (no seek possible), default = false */
+ int max_packet_size; /**< if non zero, the stream is packetized with this max packet size */
+ void *priv_data;
+ char *filename; /**< specified URL */
+ int is_connected;
+} URLContext;
+
+#define URL_PROTOCOL_FLAG_NESTED_SCHEME 1 /*< The protocol name can be the first part of a nested protocol scheme */
+
+/**
+ * @deprecated This struct is to be made private. Use the higher-level
+ * AVIOContext-based API instead.
+ */
+typedef struct URLProtocol {
+ const char *name;
+ int (*url_open)(URLContext *h, const char *url, int flags);
+ int (*url_read)(URLContext *h, unsigned char *buf, int size);
+ int (*url_write)(URLContext *h, const unsigned char *buf, int size);
+ int64_t (*url_seek)(URLContext *h, int64_t pos, int whence);
+ int (*url_close)(URLContext *h);
+ struct URLProtocol *next;
+ int (*url_read_pause)(URLContext *h, int pause);
+ int64_t (*url_read_seek)(URLContext *h, int stream_index,
+ int64_t timestamp, int flags);
+ int (*url_get_file_handle)(URLContext *h);
+ int priv_data_size;
+ const AVClass *priv_data_class;
+ int flags;
+ int (*url_check)(URLContext *h, int mask);
+} URLProtocol;
+
+typedef struct URLPollEntry {
+ URLContext *handle;
+ int events;
+ int revents;
+} URLPollEntry;
+
+/* not implemented */
+attribute_deprecated int url_poll(URLPollEntry *poll_table, int n, int timeout);
+
+/**
+ * @name URL open modes
+ * The flags argument to url_open and cosins must be one of the following
+ * constants, optionally ORed with other flags.
+ * @{
+ */
+#define URL_RDONLY 1 /**< read-only */
+#define URL_WRONLY 2 /**< write-only */
+#define URL_RDWR (URL_RDONLY|URL_WRONLY) /**< read-write */
+/**
+ * @}
+ */
+
+/**
+ * Use non-blocking mode.
+ * If this flag is set, operations on the context will return
+ * AVERROR(EAGAIN) if they can not be performed immediately.
+ * If this flag is not set, operations on the context will never return
+ * AVERROR(EAGAIN).
+ * Note that this flag does not affect the opening/connecting of the
+ * context. Connecting a protocol will always block if necessary (e.g. on
+ * network protocols) but never hang (e.g. on busy devices).
+ * Warning: non-blocking protocols is work-in-progress; this flag may be
+ * silently ignored.
+ */
+#define URL_FLAG_NONBLOCK 4
+
+typedef int URLInterruptCB(void);
+extern URLInterruptCB *url_interrupt_cb;
+
+/**
+ * @defgroup old_url_funcs Old url_* functions
+ * The following functions are deprecated. Use the buffered API based on #AVIOContext instead.
+ * @{
+ */
+attribute_deprecated int url_open_protocol (URLContext **puc, struct URLProtocol *up,
+ const char *url, int flags);
+attribute_deprecated int url_alloc(URLContext **h, const char *url, int flags);
+attribute_deprecated int url_connect(URLContext *h);
+attribute_deprecated int url_open(URLContext **h, const char *url, int flags);
+attribute_deprecated int url_read(URLContext *h, unsigned char *buf, int size);
+attribute_deprecated int url_read_complete(URLContext *h, unsigned char *buf, int size);
+attribute_deprecated int url_write(URLContext *h, const unsigned char *buf, int size);
+attribute_deprecated int64_t url_seek(URLContext *h, int64_t pos, int whence);
+attribute_deprecated int url_close(URLContext *h);
+attribute_deprecated int64_t url_filesize(URLContext *h);
+attribute_deprecated int url_get_file_handle(URLContext *h);
+attribute_deprecated int url_get_max_packet_size(URLContext *h);
+attribute_deprecated void url_get_filename(URLContext *h, char *buf, int buf_size);
+attribute_deprecated int av_url_read_pause(URLContext *h, int pause);
+attribute_deprecated int64_t av_url_read_seek(URLContext *h, int stream_index,
+ int64_t timestamp, int flags);
+attribute_deprecated void url_set_interrupt_cb(int (*interrupt_cb)(void));
+/**
+ * If protocol is NULL, returns the first registered protocol,
+ * if protocol is non-NULL, returns the next registered protocol after protocol,
+ * or NULL if protocol is the last one.
+ */
+attribute_deprecated URLProtocol *av_protocol_next(URLProtocol *p);
+/**
+ * Register the URLProtocol protocol.
+ *
+ * @param size the size of the URLProtocol struct referenced
+ */
+attribute_deprecated int av_register_protocol2(URLProtocol *protocol, int size);
+/**
+ * @}
+ */
+
+
+typedef attribute_deprecated AVIOContext ByteIOContext;
+
+attribute_deprecated int init_put_byte(AVIOContext *s,
+ unsigned char *buffer,
+ int buffer_size,
+ int write_flag,
+ void *opaque,
+ int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
+ int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
+ int64_t (*seek)(void *opaque, int64_t offset, int whence));
+attribute_deprecated AVIOContext *av_alloc_put_byte(
+ unsigned char *buffer,
+ int buffer_size,
+ int write_flag,
+ void *opaque,
+ int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
+ int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
+ int64_t (*seek)(void *opaque, int64_t offset, int whence));
+
+/**
+ * @defgroup old_avio_funcs Old put_/get_*() functions
+ * The following functions are deprecated. Use the "avio_"-prefixed functions instead.
+ * @{
+ */
+attribute_deprecated int get_buffer(AVIOContext *s, unsigned char *buf, int size);
+attribute_deprecated int get_partial_buffer(AVIOContext *s, unsigned char *buf, int size);
+attribute_deprecated int get_byte(AVIOContext *s);
+attribute_deprecated unsigned int get_le16(AVIOContext *s);
+attribute_deprecated unsigned int get_le24(AVIOContext *s);
+attribute_deprecated unsigned int get_le32(AVIOContext *s);
+attribute_deprecated uint64_t get_le64(AVIOContext *s);
+attribute_deprecated unsigned int get_be16(AVIOContext *s);
+attribute_deprecated unsigned int get_be24(AVIOContext *s);
+attribute_deprecated unsigned int get_be32(AVIOContext *s);
+attribute_deprecated uint64_t get_be64(AVIOContext *s);
+
+attribute_deprecated void put_byte(AVIOContext *s, int b);
+attribute_deprecated void put_nbyte(AVIOContext *s, int b, int count);
+attribute_deprecated void put_buffer(AVIOContext *s, const unsigned char *buf, int size);
+attribute_deprecated void put_le64(AVIOContext *s, uint64_t val);
+attribute_deprecated void put_be64(AVIOContext *s, uint64_t val);
+attribute_deprecated void put_le32(AVIOContext *s, unsigned int val);
+attribute_deprecated void put_be32(AVIOContext *s, unsigned int val);
+attribute_deprecated void put_le24(AVIOContext *s, unsigned int val);
+attribute_deprecated void put_be24(AVIOContext *s, unsigned int val);
+attribute_deprecated void put_le16(AVIOContext *s, unsigned int val);
+attribute_deprecated void put_be16(AVIOContext *s, unsigned int val);
+attribute_deprecated void put_tag(AVIOContext *s, const char *tag);
+/**
+ * @}
+ */
+
+attribute_deprecated int av_url_read_fpause(AVIOContext *h, int pause);
+attribute_deprecated int64_t av_url_read_fseek (AVIOContext *h, int stream_index,
+ int64_t timestamp, int flags);
+
+/**
+ * @defgroup old_url_f_funcs Old url_f* functions
+ * The following functions are deprecated, use the "avio_"-prefixed functions instead.
+ * @{
+ */
+attribute_deprecated int url_fopen( AVIOContext **s, const char *url, int flags);
+attribute_deprecated int url_fclose(AVIOContext *s);
+attribute_deprecated int64_t url_fseek(AVIOContext *s, int64_t offset, int whence);
+attribute_deprecated int url_fskip(AVIOContext *s, int64_t offset);
+attribute_deprecated int64_t url_ftell(AVIOContext *s);
+attribute_deprecated int64_t url_fsize(AVIOContext *s);
+#define URL_EOF (-1)
+attribute_deprecated int url_fgetc(AVIOContext *s);
+attribute_deprecated int url_setbufsize(AVIOContext *s, int buf_size);
+#ifdef __GNUC__
+attribute_deprecated int url_fprintf(AVIOContext *s, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3)));
+#else
+attribute_deprecated int url_fprintf(AVIOContext *s, const char *fmt, ...);
+#endif
+attribute_deprecated void put_flush_packet(AVIOContext *s);
+attribute_deprecated int url_open_dyn_buf(AVIOContext **s);
+attribute_deprecated int url_open_dyn_packet_buf(AVIOContext **s, int max_packet_size);
+attribute_deprecated int url_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
+attribute_deprecated int url_fdopen(AVIOContext **s, URLContext *h);
+/**
+ * @}
+ */
+
+/**
+ * @deprecated use AVIOContext.eof_reached
+ */
+attribute_deprecated int url_feof(AVIOContext *s);
+attribute_deprecated int url_ferror(AVIOContext *s);
+
+attribute_deprecated int udp_set_remote_url(URLContext *h, const char *uri);
+attribute_deprecated int udp_get_local_port(URLContext *h);
+
+attribute_deprecated void init_checksum(AVIOContext *s,
+ unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len),
+ unsigned long checksum);
+attribute_deprecated unsigned long get_checksum(AVIOContext *s);
+attribute_deprecated void put_strz(AVIOContext *s, const char *buf);
+/** @note unlike fgets, the EOL character is not returned and a whole
+ line is parsed. return NULL if first char read was EOF */
+attribute_deprecated char *url_fgets(AVIOContext *s, char *buf, int buf_size);
+/**
+ * @deprecated use avio_get_str instead
+ */
+attribute_deprecated char *get_strz(AVIOContext *s, char *buf, int maxlen);
+/**
+ * @deprecated Use AVIOContext.seekable field directly.
+ */
+attribute_deprecated static inline int url_is_streamed(AVIOContext *s)
+{
+ return !s->seekable;
+}
+attribute_deprecated URLContext *url_fileno(AVIOContext *s);
+
+/**
+ * @deprecated use AVIOContext.max_packet_size directly.
+ */
+attribute_deprecated int url_fget_max_packet_size(AVIOContext *s);
+
+attribute_deprecated int url_open_buf(AVIOContext **s, uint8_t *buf, int buf_size, int flags);
+
+/** return the written or read size */
+attribute_deprecated int url_close_buf(AVIOContext *s);
+
+/**
+ * Return a non-zero value if the resource indicated by url
+ * exists, 0 otherwise.
+ * @deprecated Use avio_check instead.
+ */
+attribute_deprecated int url_exist(const char *url);
+#endif // FF_API_OLD_AVIO
+
+/**
+ * Return AVIO_FLAG_* access flags corresponding to the access permissions
+ * of the resource in url, or a negative value corresponding to an
+ * AVERROR code in case of failure. The returned access flags are
+ * masked by the value in flags.
+ *
+ * @note This function is intrinsically unsafe, in the sense that the
+ * checked resource may change its existence or permission status from
+ * one call to another. Thus you should not trust the returned value,
+ * unless you are sure that no other processes are accessing the
+ * checked resource.
+ */
+int avio_check(const char *url, int flags);
+
+/**
+ * The callback is called in blocking functions to test regulary if
+ * asynchronous interruption is needed. AVERROR_EXIT is returned
+ * in this case by the interrupted function. 'NULL' means no interrupt
+ * callback is given.
+ */
+void avio_set_interrupt_cb(int (*interrupt_cb)(void));
+
+/**
+ * Allocate and initialize an AVIOContext for buffered I/O. It must be later
+ * freed with av_free().
+ *
+ * @param buffer Memory block for input/output operations via AVIOContext.
+ * The buffer must be allocated with av_malloc() and friends.
+ * @param buffer_size The buffer size is very important for performance.
+ * For protocols with fixed blocksize it should be set to this blocksize.
+ * For others a typical size is a cache page, e.g. 4kb.
+ * @param write_flag Set to 1 if the buffer should be writable, 0 otherwise.
+ * @param opaque An opaque pointer to user-specific data.
+ * @param read_packet A function for refilling the buffer, may be NULL.
+ * @param write_packet A function for writing the buffer contents, may be NULL.
+ * @param seek A function for seeking to specified byte position, may be NULL.
+ *
+ * @return Allocated AVIOContext or NULL on failure.
+ */
+AVIOContext *avio_alloc_context(
+ unsigned char *buffer,
+ int buffer_size,
+ int write_flag,
+ void *opaque,
+ int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
+ int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
+ int64_t (*seek)(void *opaque, int64_t offset, int whence));
+
+void avio_w8(AVIOContext *s, int b);
+void avio_write(AVIOContext *s, const unsigned char *buf, int size);
+void avio_wl64(AVIOContext *s, uint64_t val);
+void avio_wb64(AVIOContext *s, uint64_t val);
+void avio_wl32(AVIOContext *s, unsigned int val);
+void avio_wb32(AVIOContext *s, unsigned int val);
+void avio_wl24(AVIOContext *s, unsigned int val);
+void avio_wb24(AVIOContext *s, unsigned int val);
+void avio_wl16(AVIOContext *s, unsigned int val);
+void avio_wb16(AVIOContext *s, unsigned int val);
+
+/**
+ * Write a NULL-terminated string.
+ * @return number of bytes written.
+ */
+int avio_put_str(AVIOContext *s, const char *str);
+
+/**
+ * Convert an UTF-8 string to UTF-16LE and write it.
+ * @return number of bytes written.
+ */
+int avio_put_str16le(AVIOContext *s, const char *str);
+
+/**
+ * Passing this as the "whence" parameter to a seek function causes it to
+ * return the filesize without seeking anywhere. Supporting this is optional.
+ * If it is not supported then the seek function will return <0.
+ */
+#define AVSEEK_SIZE 0x10000
+
+/**
+ * Oring this flag as into the "whence" parameter to a seek function causes it to
+ * seek by any means (like reopening and linear reading) or other normally unreasonble
+ * means that can be extreemly slow.
+ * This may be ignored by the seek code.
+ */
+#define AVSEEK_FORCE 0x20000
+
+/**
+ * fseek() equivalent for AVIOContext.
+ * @return new position or AVERROR.
+ */
+int64_t avio_seek(AVIOContext *s, int64_t offset, int whence);
+
+/**
+ * Skip given number of bytes forward
+ * @return new position or AVERROR.
+ */
+static av_always_inline int64_t avio_skip(AVIOContext *s, int64_t offset)
+{
+ return avio_seek(s, offset, SEEK_CUR);
+}
+
+/**
+ * ftell() equivalent for AVIOContext.
+ * @return position or AVERROR.
+ */
+static av_always_inline int64_t avio_tell(AVIOContext *s)
+{
+ return avio_seek(s, 0, SEEK_CUR);
+}
+
+/**
+ * Get the filesize.
+ * @return filesize or AVERROR
+ */
+int64_t avio_size(AVIOContext *s);
+
+/** @warning currently size is limited */
+#ifdef __GNUC__
+int avio_printf(AVIOContext *s, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3)));
+#else
+int avio_printf(AVIOContext *s, const char *fmt, ...);
+#endif
+
+void avio_flush(AVIOContext *s);
+
+
+/**
+ * Read size bytes from AVIOContext into buf.
+ * @return number of bytes read or AVERROR
+ */
+int avio_read(AVIOContext *s, unsigned char *buf, int size);
+
+/**
+ * @name Functions for reading from AVIOContext
+ * @{
+ *
+ * @note return 0 if EOF, so you cannot use it if EOF handling is
+ * necessary
+ */
+int avio_r8 (AVIOContext *s);
+unsigned int avio_rl16(AVIOContext *s);
+unsigned int avio_rl24(AVIOContext *s);
+unsigned int avio_rl32(AVIOContext *s);
+uint64_t avio_rl64(AVIOContext *s);
+unsigned int avio_rb16(AVIOContext *s);
+unsigned int avio_rb24(AVIOContext *s);
+unsigned int avio_rb32(AVIOContext *s);
+uint64_t avio_rb64(AVIOContext *s);
+/**
+ * @}
+ */
+
+/**
+ * Read a string from pb into buf. The reading will terminate when either
+ * a NULL character was encountered, maxlen bytes have been read, or nothing
+ * more can be read from pb. The result is guaranteed to be NULL-terminated, it
+ * will be truncated if buf is too small.
+ * Note that the string is not interpreted or validated in any way, it
+ * might get truncated in the middle of a sequence for multi-byte encodings.
+ *
+ * @return number of bytes read (is always <= maxlen).
+ * If reading ends on EOF or error, the return value will be one more than
+ * bytes actually read.
+ */
+int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen);
+
+/**
+ * Read a UTF-16 string from pb and convert it to UTF-8.
+ * The reading will terminate when either a null or invalid character was
+ * encountered or maxlen bytes have been read.
+ * @return number of bytes read (is always <= maxlen)
+ */
+int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen);
+int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen);
+
+
+/**
+ * @name URL open modes
+ * The flags argument to avio_open must be one of the following
+ * constants, optionally ORed with other flags.
+ * @{
+ */
+#define AVIO_FLAG_READ 1 /**< read-only */
+#define AVIO_FLAG_WRITE 2 /**< write-only */
+#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE) /**< read-write pseudo flag */
+/**
+ * @}
+ */
+
+/**
+ * Use non-blocking mode.
+ * If this flag is set, operations on the context will return
+ * AVERROR(EAGAIN) if they can not be performed immediately.
+ * If this flag is not set, operations on the context will never return
+ * AVERROR(EAGAIN).
+ * Note that this flag does not affect the opening/connecting of the
+ * context. Connecting a protocol will always block if necessary (e.g. on
+ * network protocols) but never hang (e.g. on busy devices).
+ * Warning: non-blocking protocols is work-in-progress; this flag may be
+ * silently ignored.
+ */
+#define AVIO_FLAG_NONBLOCK 8
+
+/**
+ * Create and initialize a AVIOContext for accessing the
+ * resource indicated by url.
+ * @note When the resource indicated by url has been opened in
+ * read+write mode, the AVIOContext can be used only for writing.
+ *
+ * @param s Used to return the pointer to the created AVIOContext.
+ * In case of failure the pointed to value is set to NULL.
+ * @param flags flags which control how the resource indicated by url
+ * is to be opened
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code in case of failure
+ */
+int avio_open(AVIOContext **s, const char *url, int flags);
+
+/**
+ * Close the resource accessed by the AVIOContext s and free it.
+ * This function can only be used if s was opened by avio_open().
+ *
+ * @return 0 on success, an AVERROR < 0 on error.
+ */
+int avio_close(AVIOContext *s);
+
+/**
+ * Open a write only memory stream.
+ *
+ * @param s new IO context
+ * @return zero if no error.
+ */
+int avio_open_dyn_buf(AVIOContext **s);
+
+/**
+ * Return the written size and a pointer to the buffer. The buffer
+ * must be freed with av_free().
+ * Padding of FF_INPUT_BUFFER_PADDING_SIZE is added to the buffer.
+ *
+ * @param s IO context
+ * @param pbuffer pointer to a byte buffer
+ * @return the length of the byte buffer
+ */
+int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
+
+/**
+ * Iterate through names of available protocols.
+ *
+ * @param opaque A private pointer representing current protocol.
+ * It must be a pointer to NULL on first iteration and will
+ * be updated by successive calls to avio_enum_protocols.
+ * @param output If set to 1, iterate over output protocols,
+ * otherwise over input protocols.
+ *
+ * @return A static string containing the name of current protocol or NULL
+ */
+const char *avio_enum_protocols(void **opaque, int output);
+
+/**
+ * Pause and resume playing - only meaningful if using a network streaming
+ * protocol (e.g. MMS).
+ * @param pause 1 for pause, 0 for resume
+ */
+int avio_pause(AVIOContext *h, int pause);
+
+/**
+ * Seek to a given timestamp relative to some component stream.
+ * Only meaningful if using a network streaming protocol (e.g. MMS.).
+ * @param stream_index The stream index that the timestamp is relative to.
+ * If stream_index is (-1) the timestamp should be in AV_TIME_BASE
+ * units from the beginning of the presentation.
+ * If a stream_index >= 0 is used and the protocol does not support
+ * seeking based on component streams, the call will fail with ENOTSUP.
+ * @param timestamp timestamp in AVStream.time_base units
+ * or if there is no stream specified then in AV_TIME_BASE units.
+ * @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE
+ * and AVSEEK_FLAG_ANY. The protocol may silently ignore
+ * AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will
+ * fail with ENOTSUP if used and not supported.
+ * @return >= 0 on success
+ * @see AVInputFormat::read_seek
+ */
+int64_t avio_seek_time(AVIOContext *h, int stream_index,
+ int64_t timestamp, int flags);
+
+#endif /* AVFORMAT_AVIO_H */
--- /dev/null
+/*
+ * Version macros.
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_VERSION_H
+#define AVFORMAT_VERSION_H
+
+#include "libavutil/avutil.h"
+
+#define LIBAVFORMAT_VERSION_MAJOR 53
+#define LIBAVFORMAT_VERSION_MINOR 2
+#define LIBAVFORMAT_VERSION_MICRO 0
+
+#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
+ LIBAVFORMAT_VERSION_MINOR, \
+ LIBAVFORMAT_VERSION_MICRO)
+#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \
+ LIBAVFORMAT_VERSION_MINOR, \
+ LIBAVFORMAT_VERSION_MICRO)
+#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
+
+#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
+
+/**
+ * Those FF_API_* defines are not part of public API.
+ * They may change, break or disappear at any time.
+ */
+#ifndef FF_API_OLD_METADATA2
+#define FF_API_OLD_METADATA2 (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_READ_SEEK
+#define FF_API_READ_SEEK (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_OLD_AVIO
+#define FF_API_OLD_AVIO (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_DUMP_FORMAT
+#define FF_API_DUMP_FORMAT (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_PARSE_DATE
+#define FF_API_PARSE_DATE (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_FIND_INFO_TAG
+#define FF_API_FIND_INFO_TAG (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_PKT_DUMP
+#define FF_API_PKT_DUMP (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_GUESS_IMG2_CODEC
+#define FF_API_GUESS_IMG2_CODEC (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_SDP_CREATE
+#define FF_API_SDP_CREATE (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_FORMAT_PARAMETERS
+#define FF_API_FORMAT_PARAMETERS (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_FLAG_RTP_HINT
+#define FF_API_FLAG_RTP_HINT (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+
+#endif /* AVFORMAT_VERSION_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Mans Rullgard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ADLER32_H
+#define AVUTIL_ADLER32_H
+
+#include <stdint.h>
+#include "attributes.h"
+
+/**
+ * Calculate the Adler32 checksum of a buffer.
+ *
+ * Passing the return value to a subsequent av_adler32_update() call
+ * allows the checksum of multiple buffers to be calculated as though
+ * they were concatenated.
+ *
+ * @param adler initial checksum value
+ * @param buf pointer to input buffer
+ * @param len size of input buffer
+ * @return updated checksum
+ */
+unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf,
+ unsigned int len) av_pure;
+
+#endif /* AVUTIL_ADLER32_H */
--- /dev/null
+/*
+ * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AES_H
+#define AVUTIL_AES_H
+
+#include <stdint.h>
+
+extern const int av_aes_size;
+
+struct AVAES;
+
+/**
+ * Initialize an AVAES context.
+ * @param key_bits 128, 192 or 256
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ * @param count number of 16 byte blocks
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param iv initialization vector for CBC mode, if NULL then ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
+
+#endif /* AVUTIL_AES_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Macro definitions for various function/variable attributes
+ */
+
+#ifndef AVUTIL_ATTRIBUTES_H
+#define AVUTIL_ATTRIBUTES_H
+
+#ifdef __GNUC__
+# define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y)
+#else
+# define AV_GCC_VERSION_AT_LEAST(x,y) 0
+#endif
+
+#ifndef av_always_inline
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_always_inline __attribute__((always_inline)) inline
+#else
+# define av_always_inline inline
+#endif
+#endif
+
+#ifndef av_noinline
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_noinline __attribute__((noinline))
+#else
+# define av_noinline
+#endif
+#endif
+
+#ifndef av_pure
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_pure __attribute__((pure))
+#else
+# define av_pure
+#endif
+#endif
+
+#ifndef av_const
+#if AV_GCC_VERSION_AT_LEAST(2,6)
+# define av_const __attribute__((const))
+#else
+# define av_const
+#endif
+#endif
+
+#ifndef av_cold
+#if AV_GCC_VERSION_AT_LEAST(4,3)
+# define av_cold __attribute__((cold))
+#else
+# define av_cold
+#endif
+#endif
+
+#ifndef av_flatten
+#if AV_GCC_VERSION_AT_LEAST(4,1)
+# define av_flatten __attribute__((flatten))
+#else
+# define av_flatten
+#endif
+#endif
+
+#ifndef attribute_deprecated
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define attribute_deprecated __attribute__((deprecated))
+#else
+# define attribute_deprecated
+#endif
+#endif
+
+#ifndef av_unused
+#if defined(__GNUC__)
+# define av_unused __attribute__((unused))
+#else
+# define av_unused
+#endif
+#endif
+
+/**
+ * Mark a variable as used and prevent the compiler from optimizing it
+ * away. This is useful for variables accessed only from inline
+ * assembler without the compiler being aware.
+ */
+#ifndef av_used
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_used __attribute__((used))
+#else
+# define av_used
+#endif
+#endif
+
+#ifndef av_alias
+#if AV_GCC_VERSION_AT_LEAST(3,3)
+# define av_alias __attribute__((may_alias))
+#else
+# define av_alias
+#endif
+#endif
+
+#ifndef av_uninit
+#if defined(__GNUC__) && !defined(__ICC)
+# define av_uninit(x) x=x
+#else
+# define av_uninit(x) x
+#endif
+#endif
+
+#ifdef __GNUC__
+# define av_builtin_constant_p __builtin_constant_p
+#else
+# define av_builtin_constant_p(x) 0
+#endif
+
+#endif /* AVUTIL_ATTRIBUTES_H */
--- /dev/null
+/*
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2008 Peter Ross
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AUDIOCONVERT_H
+#define AVUTIL_AUDIOCONVERT_H
+
+#include <stdint.h>
+
+/**
+ * @file
+ * audio conversion routines
+ */
+
+/* Audio channel masks */
+#define AV_CH_FRONT_LEFT 0x00000001
+#define AV_CH_FRONT_RIGHT 0x00000002
+#define AV_CH_FRONT_CENTER 0x00000004
+#define AV_CH_LOW_FREQUENCY 0x00000008
+#define AV_CH_BACK_LEFT 0x00000010
+#define AV_CH_BACK_RIGHT 0x00000020
+#define AV_CH_FRONT_LEFT_OF_CENTER 0x00000040
+#define AV_CH_FRONT_RIGHT_OF_CENTER 0x00000080
+#define AV_CH_BACK_CENTER 0x00000100
+#define AV_CH_SIDE_LEFT 0x00000200
+#define AV_CH_SIDE_RIGHT 0x00000400
+#define AV_CH_TOP_CENTER 0x00000800
+#define AV_CH_TOP_FRONT_LEFT 0x00001000
+#define AV_CH_TOP_FRONT_CENTER 0x00002000
+#define AV_CH_TOP_FRONT_RIGHT 0x00004000
+#define AV_CH_TOP_BACK_LEFT 0x00008000
+#define AV_CH_TOP_BACK_CENTER 0x00010000
+#define AV_CH_TOP_BACK_RIGHT 0x00020000
+#define AV_CH_STEREO_LEFT 0x20000000 ///< Stereo downmix.
+#define AV_CH_STEREO_RIGHT 0x40000000 ///< See AV_CH_STEREO_LEFT.
+
+/** Channel mask value used for AVCodecContext.request_channel_layout
+ to indicate that the user requests the channel order of the decoder output
+ to be the native codec channel order. */
+#define AV_CH_LAYOUT_NATIVE 0x8000000000000000LL
+
+/* Audio channel convenience macros */
+#define AV_CH_LAYOUT_MONO (AV_CH_FRONT_CENTER)
+#define AV_CH_LAYOUT_STEREO (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT)
+#define AV_CH_LAYOUT_2_1 (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_SURROUND (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
+#define AV_CH_LAYOUT_4POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_2_2 (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
+#define AV_CH_LAYOUT_QUAD (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_5POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
+#define AV_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_5POINT0_BACK (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_5POINT1_BACK (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_7POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_7POINT1_WIDE (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_STEREO_DOWNMIX (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)
+
+/**
+ * Return a channel layout id that matches name, 0 if no match.
+ */
+int64_t av_get_channel_layout(const char *name);
+
+/**
+ * Return a description of a channel layout.
+ * If nb_channels is <= 0, it is guessed from the channel_layout.
+ *
+ * @param buf put here the string containing the channel layout
+ * @param buf_size size in bytes of the buffer
+ */
+void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, int64_t channel_layout);
+
+/**
+ * Return the number of channels in the channel layout.
+ */
+int av_get_channel_layout_nb_channels(int64_t channel_layout);
+
+#endif /* AVUTIL_AUDIOCONVERT_H */
--- /dev/null
+/*
+ * copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * simple assert() macros that are a bit more flexible than ISO C assert().
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#ifndef AVUTIL_AVASSERT_H
+#define AVUTIL_AVASSERT_H
+
+#include <stdlib.h>
+#include "avutil.h"
+#include "log.h"
+
+/**
+ * assert() equivalent, that is always enabled.
+ */
+#define av_assert0(cond) do { \
+ if (!(cond)) { \
+ av_log(NULL, AV_LOG_FATAL, "Assertion %s failed at %s:%d\n", \
+ AV_STRINGIFY(cond), __FILE__, __LINE__); \
+ abort(); \
+ } \
+} while (0)
+
+
+/**
+ * assert() equivalent, that does not lie in speed critical code.
+ * These asserts() thus can be enabled without fearing speedloss.
+ */
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
+#define av_assert1(cond) av_assert0(cond)
+#else
+#define av_assert1(cond) ((void)0)
+#endif
+
+
+/**
+ * assert() equivalent, that does lie in speed critical code.
+ */
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
+#define av_assert2(cond) av_assert0(cond)
+#else
+#define av_assert2(cond) ((void)0)
+#endif
+
+#endif /* AVUTIL_AVASSERT_H */
--- /dev/null
+/* Generated by ffconf */
+#ifndef AVUTIL_AVCONFIG_H
+#define AVUTIL_AVCONFIG_H
+#define AV_HAVE_BIGENDIAN 0
+#define AV_HAVE_FAST_UNALIGNED 1
+#endif /* AVUTIL_AVCONFIG_H */
--- /dev/null
+/*
+ * Copyright (c) 2007 Mans Rullgard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AVSTRING_H
+#define AVUTIL_AVSTRING_H
+
+#include <stddef.h>
+
+/**
+ * Return non-zero if pfx is a prefix of str. If it is, *ptr is set to
+ * the address of the first character in str after the prefix.
+ *
+ * @param str input string
+ * @param pfx prefix to test
+ * @param ptr updated if the prefix is matched inside str
+ * @return non-zero if the prefix matches, zero otherwise
+ */
+int av_strstart(const char *str, const char *pfx, const char **ptr);
+
+/**
+ * Return non-zero if pfx is a prefix of str independent of case. If
+ * it is, *ptr is set to the address of the first character in str
+ * after the prefix.
+ *
+ * @param str input string
+ * @param pfx prefix to test
+ * @param ptr updated if the prefix is matched inside str
+ * @return non-zero if the prefix matches, zero otherwise
+ */
+int av_stristart(const char *str, const char *pfx, const char **ptr);
+
+/**
+ * Locate the first case-independent occurrence in the string haystack
+ * of the string needle. A zero-length string needle is considered to
+ * match at the start of haystack.
+ *
+ * This function is a case-insensitive version of the standard strstr().
+ *
+ * @param haystack string to search in
+ * @param needle string to search for
+ * @return pointer to the located match within haystack
+ * or a null pointer if no match
+ */
+char *av_stristr(const char *haystack, const char *needle);
+
+/**
+ * Copy the string src to dst, but no more than size - 1 bytes, and
+ * null-terminate dst.
+ *
+ * This function is the same as BSD strlcpy().
+ *
+ * @param dst destination buffer
+ * @param src source string
+ * @param size size of destination buffer
+ * @return the length of src
+ *
+ * WARNING: since the return value is the length of src, src absolutely
+ * _must_ be a properly 0-terminated string, otherwise this will read beyond
+ * the end of the buffer and possibly crash.
+ */
+size_t av_strlcpy(char *dst, const char *src, size_t size);
+
+/**
+ * Append the string src to the string dst, but to a total length of
+ * no more than size - 1 bytes, and null-terminate dst.
+ *
+ * This function is similar to BSD strlcat(), but differs when
+ * size <= strlen(dst).
+ *
+ * @param dst destination buffer
+ * @param src source string
+ * @param size size of destination buffer
+ * @return the total length of src and dst
+ *
+ * WARNING: since the return value use the length of src and dst, these absolutely
+ * _must_ be a properly 0-terminated strings, otherwise this will read beyond
+ * the end of the buffer and possibly crash.
+ */
+size_t av_strlcat(char *dst, const char *src, size_t size);
+
+/**
+ * Append output to a string, according to a format. Never write out of
+ * the destination buffer, and always put a terminating 0 within
+ * the buffer.
+ * @param dst destination buffer (string to which the output is
+ * appended)
+ * @param size total size of the destination buffer
+ * @param fmt printf-compatible format string, specifying how the
+ * following parameters are used
+ * @return the length of the string that would have been generated
+ * if enough space had been available
+ */
+size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...);
+
+/**
+ * Convert a number to a av_malloced string.
+ */
+char *av_d2str(double d);
+
+/**
+ * Unescape the given string until a non escaped terminating char,
+ * and return the token corresponding to the unescaped string.
+ *
+ * The normal \ and ' escaping is supported. Leading and trailing
+ * whitespaces are removed, unless they are escaped with '\' or are
+ * enclosed between ''.
+ *
+ * @param buf the buffer to parse, buf will be updated to point to the
+ * terminating char
+ * @param term a 0-terminated list of terminating chars
+ * @return the malloced unescaped string, which must be av_freed by
+ * the user, NULL in case of allocation failure
+ */
+char *av_get_token(const char **buf, const char *term);
+
+#endif /* AVUTIL_AVSTRING_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AVUTIL_H
+#define AVUTIL_AVUTIL_H
+
+/**
+ * @file
+ * external API header
+ */
+
+
+#define AV_STRINGIFY(s) AV_TOSTRING(s)
+#define AV_TOSTRING(s) #s
+
+#define AV_GLUE(a, b) a ## b
+#define AV_JOIN(a, b) AV_GLUE(a, b)
+
+#define AV_PRAGMA(s) _Pragma(#s)
+
+#define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c)
+#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
+#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
+
+#define LIBAVUTIL_VERSION_MAJOR 51
+#define LIBAVUTIL_VERSION_MINOR 7
+#define LIBAVUTIL_VERSION_MICRO 0
+
+#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
+ LIBAVUTIL_VERSION_MINOR, \
+ LIBAVUTIL_VERSION_MICRO)
+#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \
+ LIBAVUTIL_VERSION_MINOR, \
+ LIBAVUTIL_VERSION_MICRO)
+#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
+
+#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
+
+/**
+ * Those FF_API_* defines are not part of public API.
+ * They may change, break or disappear at any time.
+ */
+#ifndef FF_API_GET_BITS_PER_SAMPLE_FMT
+#define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 52)
+#endif
+#ifndef FF_API_FIND_OPT
+#define FF_API_FIND_OPT (LIBAVUTIL_VERSION_MAJOR < 52)
+#endif
+
+/**
+ * Return the LIBAVUTIL_VERSION_INT constant.
+ */
+unsigned avutil_version(void);
+
+/**
+ * Return the libavutil build-time configuration.
+ */
+const char *avutil_configuration(void);
+
+/**
+ * Return the libavutil license.
+ */
+const char *avutil_license(void);
+
+enum AVMediaType {
+ AVMEDIA_TYPE_UNKNOWN = -1,
+ AVMEDIA_TYPE_VIDEO,
+ AVMEDIA_TYPE_AUDIO,
+ AVMEDIA_TYPE_DATA,
+ AVMEDIA_TYPE_SUBTITLE,
+ AVMEDIA_TYPE_ATTACHMENT,
+ AVMEDIA_TYPE_NB
+};
+
+#define FF_LAMBDA_SHIFT 7
+#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
+#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
+#define FF_LAMBDA_MAX (256*128-1)
+
+#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
+
+#define AV_NOPTS_VALUE INT64_C(0x8000000000000000)
+#define AV_TIME_BASE 1000000
+#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
+
+enum AVPictureType {
+ AV_PICTURE_TYPE_I = 1, ///< Intra
+ AV_PICTURE_TYPE_P, ///< Predicted
+ AV_PICTURE_TYPE_B, ///< Bi-dir predicted
+ AV_PICTURE_TYPE_S, ///< S(GMC)-VOP MPEG4
+ AV_PICTURE_TYPE_SI, ///< Switching Intra
+ AV_PICTURE_TYPE_SP, ///< Switching Predicted
+ AV_PICTURE_TYPE_BI, ///< BI type
+};
+
+/**
+ * Return a single letter to describe the given picture type
+ * pict_type.
+ *
+ * @param[in] pict_type the picture type @return a single character
+ * representing the picture type, '?' if pict_type is unknown
+ */
+char av_get_picture_type_char(enum AVPictureType pict_type);
+
+#include "common.h"
+#include "error.h"
+#include "mathematics.h"
+#include "rational.h"
+#include "intfloat_readwrite.h"
+#include "log.h"
+#include "pixfmt.h"
+
+#endif /* AVUTIL_AVUTIL_H */
--- /dev/null
+/*
+ * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BASE64_H
+#define AVUTIL_BASE64_H
+
+#include <stdint.h>
+
+/**
+ * Decode a base64-encoded string.
+ *
+ * @param out buffer for decoded data
+ * @param in null-terminated input string
+ * @param out_size size in bytes of the out buffer, must be at
+ * least 3/4 of the length of in
+ * @return number of bytes written, or a negative value in case of
+ * invalid input
+ */
+int av_base64_decode(uint8_t *out, const char *in, int out_size);
+
+/**
+ * Encode data to base64 and null-terminate.
+ *
+ * @param out buffer for encoded data
+ * @param out_size size in bytes of the output buffer, must be at
+ * least AV_BASE64_SIZE(in_size)
+ * @param in_size size in bytes of the 'in' buffer
+ * @return 'out' or NULL in case of error
+ */
+char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
+
+/**
+ * Calculate the output size needed to base64-encode x bytes.
+ */
+#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
+
+#endif /* AVUTIL_BASE64_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * byte swapping routines
+ */
+
+#ifndef AVUTIL_BSWAP_H
+#define AVUTIL_BSWAP_H
+
+#include <stdint.h>
+#include "libavutil/avconfig.h"
+#include "attributes.h"
+
+#ifdef HAVE_AV_CONFIG_H
+
+#include "config.h"
+
+#if ARCH_ARM
+# include "arm/bswap.h"
+#elif ARCH_AVR32
+# include "avr32/bswap.h"
+#elif ARCH_BFIN
+# include "bfin/bswap.h"
+#elif ARCH_SH4
+# include "sh4/bswap.h"
+#elif ARCH_X86
+# include "x86/bswap.h"
+#endif
+
+#endif /* HAVE_AV_CONFIG_H */
+
+#define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff))
+#define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16))
+#define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32))
+
+#define AV_BSWAPC(s, x) AV_BSWAP##s##C(x)
+
+#ifndef av_bswap16
+static av_always_inline av_const uint16_t av_bswap16(uint16_t x)
+{
+ x= (x>>8) | (x<<8);
+ return x;
+}
+#endif
+
+#ifndef av_bswap32
+static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
+{
+ x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);
+ x= (x>>16) | (x<<16);
+ return x;
+}
+#endif
+
+#ifndef av_bswap64
+static inline uint64_t av_const av_bswap64(uint64_t x)
+{
+ union {
+ uint64_t ll;
+ uint32_t l[2];
+ } w, r;
+ w.ll = x;
+ r.l[0] = av_bswap32 (w.l[1]);
+ r.l[1] = av_bswap32 (w.l[0]);
+ return r.ll;
+}
+#endif
+
+// be2ne ... big-endian to native-endian
+// le2ne ... little-endian to native-endian
+
+#if AV_HAVE_BIGENDIAN
+#define av_be2ne16(x) (x)
+#define av_be2ne32(x) (x)
+#define av_be2ne64(x) (x)
+#define av_le2ne16(x) av_bswap16(x)
+#define av_le2ne32(x) av_bswap32(x)
+#define av_le2ne64(x) av_bswap64(x)
+#define AV_BE2NEC(s, x) (x)
+#define AV_LE2NEC(s, x) AV_BSWAPC(s, x)
+#else
+#define av_be2ne16(x) av_bswap16(x)
+#define av_be2ne32(x) av_bswap32(x)
+#define av_be2ne64(x) av_bswap64(x)
+#define av_le2ne16(x) (x)
+#define av_le2ne32(x) (x)
+#define av_le2ne64(x) (x)
+#define AV_BE2NEC(s, x) AV_BSWAPC(s, x)
+#define AV_LE2NEC(s, x) (x)
+#endif
+
+#define AV_BE2NE16C(x) AV_BE2NEC(16, x)
+#define AV_BE2NE32C(x) AV_BE2NEC(32, x)
+#define AV_BE2NE64C(x) AV_BE2NEC(64, x)
+#define AV_LE2NE16C(x) AV_LE2NEC(16, x)
+#define AV_LE2NE32C(x) AV_LE2NEC(32, x)
+#define AV_LE2NE64C(x) AV_LE2NEC(64, x)
+
+#endif /* AVUTIL_BSWAP_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * common internal and external API header
+ */
+
+#ifndef AVUTIL_COMMON_H
+#define AVUTIL_COMMON_H
+
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "attributes.h"
+#include "libavutil/avconfig.h"
+
+#if AV_HAVE_BIGENDIAN
+# define AV_NE(be, le) (be)
+#else
+# define AV_NE(be, le) (le)
+#endif
+
+//rounded division & shift
+#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
+/* assume b>0 */
+#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
+#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
+#define FFSIGN(a) ((a) > 0 ? 1 : -1)
+
+#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
+#define FFMAX3(a,b,c) FFMAX(FFMAX(a,b),c)
+#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
+#define FFMIN3(a,b,c) FFMIN(FFMIN(a,b),c)
+
+#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
+#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
+#define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1))
+
+/* misc math functions */
+extern const uint8_t ff_log2_tab[256];
+
+extern const uint8_t av_reverse[256];
+
+static av_always_inline av_const int av_log2_c(unsigned int v)
+{
+ int n = 0;
+ if (v & 0xffff0000) {
+ v >>= 16;
+ n += 16;
+ }
+ if (v & 0xff00) {
+ v >>= 8;
+ n += 8;
+ }
+ n += ff_log2_tab[v];
+
+ return n;
+}
+
+static av_always_inline av_const int av_log2_16bit_c(unsigned int v)
+{
+ int n = 0;
+ if (v & 0xff00) {
+ v >>= 8;
+ n += 8;
+ }
+ n += ff_log2_tab[v];
+
+ return n;
+}
+
+#ifdef HAVE_AV_CONFIG_H
+# include "config.h"
+# include "intmath.h"
+#endif
+
+/* Pull in unguarded fallback defines at the end of this file. */
+#include "common.h"
+
+/**
+ * Clip a signed integer value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const int av_clip_c(int a, int amin, int amax)
+{
+ if (a < amin) return amin;
+ else if (a > amax) return amax;
+ else return a;
+}
+
+/**
+ * Clip a signed integer value into the 0-255 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const uint8_t av_clip_uint8_c(int a)
+{
+ if (a&(~0xFF)) return (-a)>>31;
+ else return a;
+}
+
+/**
+ * Clip a signed integer value into the -128,127 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int8_t av_clip_int8_c(int a)
+{
+ if ((a+0x80) & ~0xFF) return (a>>31) ^ 0x7F;
+ else return a;
+}
+
+/**
+ * Clip a signed integer value into the 0-65535 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
+{
+ if (a&(~0xFFFF)) return (-a)>>31;
+ else return a;
+}
+
+/**
+ * Clip a signed integer value into the -32768,32767 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int16_t av_clip_int16_c(int a)
+{
+ if ((a+0x8000) & ~0xFFFF) return (a>>31) ^ 0x7FFF;
+ else return a;
+}
+
+/**
+ * Clip a signed 64-bit integer value into the -2147483648,2147483647 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a)
+{
+ if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF;
+ else return a;
+}
+
+/**
+ * Clip a signed integer to an unsigned power of two range.
+ * @param a value to clip
+ * @param p bit position to clip at
+ * @return clipped value
+ */
+static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
+{
+ if (a & ~((1<<p) - 1)) return -a >> 31 & ((1<<p) - 1);
+ else return a;
+}
+
+/**
+ * Clip a float value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const float av_clipf_c(float a, float amin, float amax)
+{
+ if (a < amin) return amin;
+ else if (a > amax) return amax;
+ else return a;
+}
+
+/** Compute ceil(log2(x)).
+ * @param x value used to compute ceil(log2(x))
+ * @return computed ceiling of log2(x)
+ */
+static av_always_inline av_const int av_ceil_log2_c(int x)
+{
+ return av_log2((x - 1) << 1);
+}
+
+/**
+ * Count number of bits set to one in x
+ * @param x value to count bits of
+ * @return the number of bits set to one in x
+ */
+static av_always_inline av_const int av_popcount_c(uint32_t x)
+{
+ x -= (x >> 1) & 0x55555555;
+ x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
+ x = (x + (x >> 4)) & 0x0F0F0F0F;
+ x += x >> 8;
+ return (x + (x >> 16)) & 0x3F;
+}
+
+#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((d) << 24))
+#define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((a) << 24))
+
+/**
+ * Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
+ *
+ * @param val Output value, must be an lvalue of type uint32_t.
+ * @param GET_BYTE Expression reading one byte from the input.
+ * Evaluated up to 7 times (4 for the currently
+ * assigned Unicode range). With a memory buffer
+ * input, this could be *ptr++.
+ * @param ERROR Expression to be evaluated on invalid input,
+ * typically a goto statement.
+ */
+#define GET_UTF8(val, GET_BYTE, ERROR)\
+ val= GET_BYTE;\
+ {\
+ int ones= 7 - av_log2(val ^ 255);\
+ if(ones==1)\
+ ERROR\
+ val&= 127>>ones;\
+ while(--ones > 0){\
+ int tmp= GET_BYTE - 128;\
+ if(tmp>>6)\
+ ERROR\
+ val= (val<<6) + tmp;\
+ }\
+ }
+
+/**
+ * Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form.
+ *
+ * @param val Output value, must be an lvalue of type uint32_t.
+ * @param GET_16BIT Expression returning two bytes of UTF-16 data converted
+ * to native byte order. Evaluated one or two times.
+ * @param ERROR Expression to be evaluated on invalid input,
+ * typically a goto statement.
+ */
+#define GET_UTF16(val, GET_16BIT, ERROR)\
+ val = GET_16BIT;\
+ {\
+ unsigned int hi = val - 0xD800;\
+ if (hi < 0x800) {\
+ val = GET_16BIT - 0xDC00;\
+ if (val > 0x3FFU || hi > 0x3FFU)\
+ ERROR\
+ val += (hi<<10) + 0x10000;\
+ }\
+ }\
+
+/*!
+ * \def PUT_UTF8(val, tmp, PUT_BYTE)
+ * Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).
+ * \param val is an input-only argument and should be of type uint32_t. It holds
+ * a UCS-4 encoded Unicode character that is to be converted to UTF-8. If
+ * val is given as a function it is executed only once.
+ * \param tmp is a temporary variable and should be of type uint8_t. It
+ * represents an intermediate value during conversion that is to be
+ * output by PUT_BYTE.
+ * \param PUT_BYTE writes the converted UTF-8 bytes to any proper destination.
+ * It could be a function or a statement, and uses tmp as the input byte.
+ * For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be
+ * executed up to 4 times for values in the valid UTF-8 range and up to
+ * 7 times in the general case, depending on the length of the converted
+ * Unicode character.
+ */
+#define PUT_UTF8(val, tmp, PUT_BYTE)\
+ {\
+ int bytes, shift;\
+ uint32_t in = val;\
+ if (in < 0x80) {\
+ tmp = in;\
+ PUT_BYTE\
+ } else {\
+ bytes = (av_log2(in) + 4) / 5;\
+ shift = (bytes - 1) * 6;\
+ tmp = (256 - (256 >> bytes)) | (in >> shift);\
+ PUT_BYTE\
+ while (shift >= 6) {\
+ shift -= 6;\
+ tmp = 0x80 | ((in >> shift) & 0x3f);\
+ PUT_BYTE\
+ }\
+ }\
+ }
+
+/*!
+ * \def PUT_UTF16(val, tmp, PUT_16BIT)
+ * Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes).
+ * \param val is an input-only argument and should be of type uint32_t. It holds
+ * a UCS-4 encoded Unicode character that is to be converted to UTF-16. If
+ * val is given as a function it is executed only once.
+ * \param tmp is a temporary variable and should be of type uint16_t. It
+ * represents an intermediate value during conversion that is to be
+ * output by PUT_16BIT.
+ * \param PUT_16BIT writes the converted UTF-16 data to any proper destination
+ * in desired endianness. It could be a function or a statement, and uses tmp
+ * as the input byte. For example, PUT_BYTE could be "*output++ = tmp;"
+ * PUT_BYTE will be executed 1 or 2 times depending on input character.
+ */
+#define PUT_UTF16(val, tmp, PUT_16BIT)\
+ {\
+ uint32_t in = val;\
+ if (in < 0x10000) {\
+ tmp = in;\
+ PUT_16BIT\
+ } else {\
+ tmp = 0xD800 | ((in - 0x10000) >> 10);\
+ PUT_16BIT\
+ tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
+ PUT_16BIT\
+ }\
+ }\
+
+
+
+#include "mem.h"
+
+#ifdef HAVE_AV_CONFIG_H
+# include "internal.h"
+#endif /* HAVE_AV_CONFIG_H */
+
+#endif /* AVUTIL_COMMON_H */
+
+/*
+ * The following definitions are outside the multiple inclusion guard
+ * to ensure they are immediately available in intmath.h.
+ */
+
+#ifndef av_log2
+# define av_log2 av_log2_c
+#endif
+#ifndef av_log2_16bit
+# define av_log2_16bit av_log2_16bit_c
+#endif
+#ifndef av_ceil_log2
+# define av_ceil_log2 av_ceil_log2_c
+#endif
+#ifndef av_clip
+# define av_clip av_clip_c
+#endif
+#ifndef av_clip_uint8
+# define av_clip_uint8 av_clip_uint8_c
+#endif
+#ifndef av_clip_int8
+# define av_clip_int8 av_clip_int8_c
+#endif
+#ifndef av_clip_uint16
+# define av_clip_uint16 av_clip_uint16_c
+#endif
+#ifndef av_clip_int16
+# define av_clip_int16 av_clip_int16_c
+#endif
+#ifndef av_clipl_int32
+# define av_clipl_int32 av_clipl_int32_c
+#endif
+#ifndef av_clip_uintp2
+# define av_clip_uintp2 av_clip_uintp2_c
+#endif
+#ifndef av_clipf
+# define av_clipf av_clipf_c
+#endif
+#ifndef av_popcount
+# define av_popcount av_popcount_c
+#endif
--- /dev/null
+/*
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CPU_H
+#define AVUTIL_CPU_H
+
+#define AV_CPU_FLAG_FORCE 0x80000000 /* force usage of selected flags (OR) */
+
+ /* lower 16 bits - CPU features */
+#define AV_CPU_FLAG_MMX 0x0001 ///< standard MMX
+#define AV_CPU_FLAG_MMX2 0x0002 ///< SSE integer functions or AMD MMX ext
+#define AV_CPU_FLAG_3DNOW 0x0004 ///< AMD 3DNOW
+#define AV_CPU_FLAG_SSE 0x0008 ///< SSE functions
+#define AV_CPU_FLAG_SSE2 0x0010 ///< PIV SSE2 functions
+#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
+#define AV_CPU_FLAG_3DNOWEXT 0x0020 ///< AMD 3DNowExt
+#define AV_CPU_FLAG_SSE3 0x0040 ///< Prescott SSE3 functions
+#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster
+#define AV_CPU_FLAG_SSSE3 0x0080 ///< Conroe SSSE3 functions
+#define AV_CPU_FLAG_ATOM 0x10000000 ///< Atom processor, some SSSE3 instructions are slower
+#define AV_CPU_FLAG_SSE4 0x0100 ///< Penryn SSE4.1 functions
+#define AV_CPU_FLAG_SSE42 0x0200 ///< Nehalem SSE4.2 functions
+#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
+#define AV_CPU_FLAG_IWMMXT 0x0100 ///< XScale IWMMXT
+#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard
+
+/**
+ * Return the flags which specify extensions supported by the CPU.
+ */
+int av_get_cpu_flags(void);
+
+/* The following CPU-specific functions shall not be called directly. */
+int ff_get_cpu_flags_arm(void);
+int ff_get_cpu_flags_ppc(void);
+int ff_get_cpu_flags_x86(void);
+
+#endif /* AVUTIL_CPU_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CRC_H
+#define AVUTIL_CRC_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "attributes.h"
+
+typedef uint32_t AVCRC;
+
+typedef enum {
+ AV_CRC_8_ATM,
+ AV_CRC_16_ANSI,
+ AV_CRC_16_CCITT,
+ AV_CRC_32_IEEE,
+ AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */
+ AV_CRC_MAX, /*< Not part of public API! Do not use outside libavutil. */
+}AVCRCId;
+
+int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
+const AVCRC *av_crc_get_table(AVCRCId crc_id);
+uint32_t av_crc(const AVCRC *ctx, uint32_t start_crc, const uint8_t *buffer, size_t length) av_pure;
+
+#endif /* AVUTIL_CRC_H */
+
--- /dev/null
+/*
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Public dictionary API.
+ */
+
+#ifndef AVUTIL_DICT_H
+#define AVUTIL_DICT_H
+
+#define AV_DICT_MATCH_CASE 1
+#define AV_DICT_IGNORE_SUFFIX 2
+#define AV_DICT_DONT_STRDUP_KEY 4
+#define AV_DICT_DONT_STRDUP_VAL 8
+#define AV_DICT_DONT_OVERWRITE 16 ///< Don't overwrite existing entries.
+#define AV_DICT_APPEND 32 /**< If the entry already exists, append to it. Note that no
+ delimiter is added, the strings are simply concatenated. */
+
+typedef struct {
+ char *key;
+ char *value;
+} AVDictionaryEntry;
+
+typedef struct AVDictionary AVDictionary;
+
+/**
+ * Get a dictionary entry with matching key.
+ *
+ * @param prev Set to the previous matching element to find the next.
+ * If set to NULL the first matching element is returned.
+ * @param flags Allows case as well as suffix-insensitive comparisons.
+ * @return Found entry or NULL, changing key or value leads to undefined behavior.
+ */
+AVDictionaryEntry *
+av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags);
+
+/**
+ * Set the given entry in *pm, overwriting an existing entry.
+ *
+ * @param pm pointer to a pointer to a dictionary struct. If *pm is NULL
+ * a dictionary struct is allocated and put in *pm.
+ * @param key entry key to add to *pm (will be av_strduped depending on flags)
+ * @param value entry value to add to *pm (will be av_strduped depending on flags).
+ * Passing a NULL value will cause an existing tag to be deleted.
+ * @return >= 0 on success otherwise an error code <0
+ */
+int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags);
+
+/**
+ * Copy entries from one AVDictionary struct into another.
+ * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL,
+ * this function will allocate a struct for you and put it in *dst
+ * @param src pointer to source AVDictionary struct
+ * @param flags flags to use when setting entries in *dst
+ * @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag
+ */
+void av_dict_copy(AVDictionary **dst, AVDictionary *src, int flags);
+
+/**
+ * Free all the memory allocated for an AVDictionary struct.
+ */
+void av_dict_free(AVDictionary **m);
+
+#endif // AVUTIL_DICT_H
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * error code definitions
+ */
+
+#ifndef AVUTIL_ERROR_H
+#define AVUTIL_ERROR_H
+
+#include <errno.h>
+#include "avutil.h"
+
+/* error handling */
+#if EDOM > 0
+#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions.
+#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
+#else
+/* Some platforms have E* and errno already negated. */
+#define AVERROR(e) (e)
+#define AVUNERROR(e) (e)
+#endif
+
+#define AVERROR_BSF_NOT_FOUND (-MKTAG(0xF8,'B','S','F')) ///< Bitstream filter not found
+#define AVERROR_DECODER_NOT_FOUND (-MKTAG(0xF8,'D','E','C')) ///< Decoder not found
+#define AVERROR_DEMUXER_NOT_FOUND (-MKTAG(0xF8,'D','E','M')) ///< Demuxer not found
+#define AVERROR_ENCODER_NOT_FOUND (-MKTAG(0xF8,'E','N','C')) ///< Encoder not found
+#define AVERROR_EOF (-MKTAG( 'E','O','F',' ')) ///< End of file
+#define AVERROR_EXIT (-MKTAG( 'E','X','I','T')) ///< Immediate exit was requested; the called function should not be restarted
+#define AVERROR_FILTER_NOT_FOUND (-MKTAG(0xF8,'F','I','L')) ///< Filter not found
+#define AVERROR_INVALIDDATA (-MKTAG( 'I','N','D','A')) ///< Invalid data found when processing input
+#define AVERROR_MUXER_NOT_FOUND (-MKTAG(0xF8,'M','U','X')) ///< Muxer not found
+#define AVERROR_OPTION_NOT_FOUND (-MKTAG(0xF8,'O','P','T')) ///< Option not found
+#define AVERROR_PATCHWELCOME (-MKTAG( 'P','A','W','E')) ///< Not yet implemented in Libav, patches welcome
+#define AVERROR_PROTOCOL_NOT_FOUND (-MKTAG(0xF8,'P','R','O')) ///< Protocol not found
+#define AVERROR_STREAM_NOT_FOUND (-MKTAG(0xF8,'S','T','R')) ///< Stream not found
+
+/**
+ * Put a description of the AVERROR code errnum in errbuf.
+ * In case of failure the global variable errno is set to indicate the
+ * error. Even in case of failure av_strerror() will print a generic
+ * error message indicating the errnum provided to errbuf.
+ *
+ * @param errnum error code to describe
+ * @param errbuf buffer to which description is written
+ * @param errbuf_size the size in bytes of errbuf
+ * @return 0 on success, a negative value if a description for errnum
+ * cannot be found
+ */
+int av_strerror(int errnum, char *errbuf, size_t errbuf_size);
+
+#endif /* AVUTIL_ERROR_H */
--- /dev/null
+/*
+ * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * simple arithmetic expression evaluator
+ */
+
+#ifndef AVUTIL_EVAL_H
+#define AVUTIL_EVAL_H
+
+#include "avutil.h"
+
+typedef struct AVExpr AVExpr;
+
+/**
+ * Parse and evaluate an expression.
+ * Note, this is significantly slower than av_expr_eval().
+ *
+ * @param res a pointer to a double where is put the result value of
+ * the expression, or NAN in case of error
+ * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"
+ * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0}
+ * @param const_values a zero terminated array of values for the identifiers from const_names
+ * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers
+ * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument
+ * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers
+ * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments
+ * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2
+ * @param log_ctx parent logging context
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_expr_parse_and_eval(double *res, const char *s,
+ const char * const *const_names, const double *const_values,
+ const char * const *func1_names, double (* const *funcs1)(void *, double),
+ const char * const *func2_names, double (* const *funcs2)(void *, double, double),
+ void *opaque, int log_offset, void *log_ctx);
+
+/**
+ * Parse an expression.
+ *
+ * @param expr a pointer where is put an AVExpr containing the parsed
+ * value in case of successfull parsing, or NULL otherwise.
+ * The pointed to AVExpr must be freed with av_expr_free() by the user
+ * when it is not needed anymore.
+ * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"
+ * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0}
+ * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers
+ * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument
+ * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers
+ * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments
+ * @param log_ctx parent logging context
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_expr_parse(AVExpr **expr, const char *s,
+ const char * const *const_names,
+ const char * const *func1_names, double (* const *funcs1)(void *, double),
+ const char * const *func2_names, double (* const *funcs2)(void *, double, double),
+ int log_offset, void *log_ctx);
+
+/**
+ * Evaluate a previously parsed expression.
+ *
+ * @param const_values a zero terminated array of values for the identifiers from av_expr_parse() const_names
+ * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2
+ * @return the value of the expression
+ */
+double av_expr_eval(AVExpr *e, const double *const_values, void *opaque);
+
+/**
+ * Free a parsed expression previously created with av_expr_parse().
+ */
+void av_expr_free(AVExpr *e);
+
+/**
+ * Parse the string in numstr and return its value as a double. If
+ * the string is empty, contains only whitespaces, or does not contain
+ * an initial substring that has the expected syntax for a
+ * floating-point number, no conversion is performed. In this case,
+ * returns a value of zero and the value returned in tail is the value
+ * of numstr.
+ *
+ * @param numstr a string representing a number, may contain one of
+ * the International System number postfixes, for example 'K', 'M',
+ * 'G'. If 'i' is appended after the postfix, powers of 2 are used
+ * instead of powers of 10. The 'B' postfix multiplies the value for
+ * 8, and can be appended after another postfix or used alone. This
+ * allows using for example 'KB', 'MiB', 'G' and 'B' as postfix.
+ * @param tail if non-NULL puts here the pointer to the char next
+ * after the last parsed character
+ */
+double av_strtod(const char *numstr, char **tail);
+
+#endif /* AVUTIL_EVAL_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * a very simple circular buffer FIFO implementation
+ */
+
+#ifndef AVUTIL_FIFO_H
+#define AVUTIL_FIFO_H
+
+#include <stdint.h>
+
+typedef struct AVFifoBuffer {
+ uint8_t *buffer;
+ uint8_t *rptr, *wptr, *end;
+ uint32_t rndx, wndx;
+} AVFifoBuffer;
+
+/**
+ * Initialize an AVFifoBuffer.
+ * @param size of FIFO
+ * @return AVFifoBuffer or NULL in case of memory allocation failure
+ */
+AVFifoBuffer *av_fifo_alloc(unsigned int size);
+
+/**
+ * Free an AVFifoBuffer.
+ * @param *f AVFifoBuffer to free
+ */
+void av_fifo_free(AVFifoBuffer *f);
+
+/**
+ * Reset the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied.
+ * @param *f AVFifoBuffer to reset
+ */
+void av_fifo_reset(AVFifoBuffer *f);
+
+/**
+ * Return the amount of data in bytes in the AVFifoBuffer, that is the
+ * amount of data you can read from it.
+ * @param *f AVFifoBuffer to read from
+ * @return size
+ */
+int av_fifo_size(AVFifoBuffer *f);
+
+/**
+ * Return the amount of space in bytes in the AVFifoBuffer, that is the
+ * amount of data you can write into it.
+ * @param *f AVFifoBuffer to write into
+ * @return size
+ */
+int av_fifo_space(AVFifoBuffer *f);
+
+/**
+ * Feed data from an AVFifoBuffer to a user-supplied callback.
+ * @param *f AVFifoBuffer to read from
+ * @param buf_size number of bytes to read
+ * @param *func generic read function
+ * @param *dest data destination
+ */
+int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
+
+/**
+ * Feed data from a user-supplied callback to an AVFifoBuffer.
+ * @param *f AVFifoBuffer to write to
+ * @param *src data source; non-const since it may be used as a
+ * modifiable context by the function defined in func
+ * @param size number of bytes to write
+ * @param *func generic write function; the first parameter is src,
+ * the second is dest_buf, the third is dest_buf_size.
+ * func must return the number of bytes written to dest_buf, or <= 0 to
+ * indicate no more data available to write.
+ * If func is NULL, src is interpreted as a simple byte array for source data.
+ * @return the number of bytes written to the FIFO
+ */
+int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int));
+
+/**
+ * Resize an AVFifoBuffer.
+ * @param *f AVFifoBuffer to resize
+ * @param size new AVFifoBuffer size in bytes
+ * @return <0 for failure, >=0 otherwise
+ */
+int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size);
+
+/**
+ * Read and discard the specified amount of data from an AVFifoBuffer.
+ * @param *f AVFifoBuffer to read from
+ * @param size amount of data to read in bytes
+ */
+void av_fifo_drain(AVFifoBuffer *f, int size);
+
+static inline uint8_t av_fifo_peek(AVFifoBuffer *f, int offs)
+{
+ uint8_t *ptr = f->rptr + offs;
+ if (ptr >= f->end)
+ ptr -= f->end - f->buffer;
+ return *ptr;
+}
+#endif /* AVUTIL_FIFO_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_FILE_H
+#define AVUTIL_FILE_H
+
+#include "avutil.h"
+
+/**
+ * @file
+ * Misc file utilities.
+ */
+
+/**
+ * Read the file with name filename, and put its content in a newly
+ * allocated buffer or map it with mmap() when available.
+ * In case of success set *bufptr to the read or mmapped buffer, and
+ * *size to the size in bytes of the buffer in *bufptr.
+ * The returned buffer must be released with av_file_unmap().
+ *
+ * @param log_offset loglevel offset used for logging
+ * @param log_ctx context used for logging
+ * @return a non negative number in case of success, a negative value
+ * corresponding to an AVERROR error code in case of failure
+ */
+int av_file_map(const char *filename, uint8_t **bufptr, size_t *size,
+ int log_offset, void *log_ctx);
+
+/**
+ * Unmap or free the buffer bufptr created by av_file_map().
+ *
+ * @param size size in bytes of bufptr, must be the same as returned
+ * by av_file_map()
+ */
+void av_file_unmap(uint8_t *bufptr, size_t size);
+
+#endif /* AVUTIL_FILE_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_IMGUTILS_H
+#define AVUTIL_IMGUTILS_H
+
+/**
+ * @file
+ * misc image utilities
+ */
+
+#include "avutil.h"
+#include "pixdesc.h"
+
+/**
+ * Compute the max pixel step for each plane of an image with a
+ * format described by pixdesc.
+ *
+ * The pixel step is the distance in bytes between the first byte of
+ * the group of bytes which describe a pixel component and the first
+ * byte of the successive group in the same plane for the same
+ * component.
+ *
+ * @param max_pixsteps an array which is filled with the max pixel step
+ * for each plane. Since a plane may contain different pixel
+ * components, the computed max_pixsteps[plane] is relative to the
+ * component in the plane with the max pixel step.
+ * @param max_pixstep_comps an array which is filled with the component
+ * for each plane which has the max pixel step. May be NULL.
+ */
+void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
+ const AVPixFmtDescriptor *pixdesc);
+
+/**
+ * Compute the size of an image line with format pix_fmt and width
+ * width for the plane plane.
+ *
+ * @return the computed size in bytes
+ */
+int av_image_get_linesize(enum PixelFormat pix_fmt, int width, int plane);
+
+/**
+ * Fill plane linesizes for an image with pixel format pix_fmt and
+ * width width.
+ *
+ * @param linesizes array to be filled with the linesize for each plane
+ * @return >= 0 in case of success, a negative error code otherwise
+ */
+int av_image_fill_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width);
+
+/**
+ * Fill plane data pointers for an image with pixel format pix_fmt and
+ * height height.
+ *
+ * @param data pointers array to be filled with the pointer for each image plane
+ * @param ptr the pointer to a buffer which will contain the image
+ * @param linesizes the array containing the linesize for each
+ * plane, should be filled by av_image_fill_linesizes()
+ * @return the size in bytes required for the image buffer, a negative
+ * error code in case of failure
+ */
+int av_image_fill_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
+ uint8_t *ptr, const int linesizes[4]);
+
+/**
+ * Allocate an image with size w and h and pixel format pix_fmt, and
+ * fill pointers and linesizes accordingly.
+ * The allocated image buffer has to be freed by using
+ * av_freep(&pointers[0]).
+ *
+ * @param align the value to use for buffer size alignment
+ * @return the size in bytes required for the image buffer, a negative
+ * error code in case of failure
+ */
+int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
+ int w, int h, enum PixelFormat pix_fmt, int align);
+
+/**
+ * Copy image plane from src to dst.
+ * That is, copy "height" number of lines of "bytewidth" bytes each.
+ * The first byte of each successive line is separated by *_linesize
+ * bytes.
+ *
+ * @param dst_linesize linesize for the image plane in dst
+ * @param src_linesize linesize for the image plane in src
+ */
+void av_image_copy_plane(uint8_t *dst, int dst_linesize,
+ const uint8_t *src, int src_linesize,
+ int bytewidth, int height);
+
+/**
+ * Copy image in src_data to dst_data.
+ *
+ * @param dst_linesize linesizes for the image in dst_data
+ * @param src_linesize linesizes for the image in src_data
+ */
+void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
+ const uint8_t *src_data[4], const int src_linesizes[4],
+ enum PixelFormat pix_fmt, int width, int height);
+
+/**
+ * Check if the given dimension of an image is valid, meaning that all
+ * bytes of the image can be addressed with a signed int.
+ *
+ * @param w the width of the picture
+ * @param h the height of the picture
+ * @param log_offset the offset to sum to the log level for logging with log_ctx
+ * @param log_ctx the parent logging context, it may be NULL
+ * @return >= 0 if valid, a negative error code otherwise
+ */
+int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
+
+int ff_set_systematic_pal2(uint32_t pal[256], enum PixelFormat pix_fmt);
+
+#endif /* AVUTIL_IMGUTILS_H */
--- /dev/null
+/*
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_INTFLOAT_READWRITE_H
+#define AVUTIL_INTFLOAT_READWRITE_H
+
+#include <stdint.h>
+#include "attributes.h"
+
+/* IEEE 80 bits extended float */
+typedef struct AVExtFloat {
+ uint8_t exponent[2];
+ uint8_t mantissa[8];
+} AVExtFloat;
+
+double av_int2dbl(int64_t v) av_const;
+float av_int2flt(int32_t v) av_const;
+double av_ext2dbl(const AVExtFloat ext) av_const;
+int64_t av_dbl2int(double d) av_const;
+int32_t av_flt2int(float d) av_const;
+AVExtFloat av_dbl2ext(double d) av_const;
+
+#endif /* AVUTIL_INTFLOAT_READWRITE_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_INTREADWRITE_H
+#define AVUTIL_INTREADWRITE_H
+
+#include <stdint.h>
+#include "libavutil/avconfig.h"
+#include "attributes.h"
+#include "bswap.h"
+
+typedef union {
+ uint64_t u64;
+ uint32_t u32[2];
+ uint16_t u16[4];
+ uint8_t u8 [8];
+ double f64;
+ float f32[2];
+} av_alias av_alias64;
+
+typedef union {
+ uint32_t u32;
+ uint16_t u16[2];
+ uint8_t u8 [4];
+ float f32;
+} av_alias av_alias32;
+
+typedef union {
+ uint16_t u16;
+ uint8_t u8 [2];
+} av_alias av_alias16;
+
+/*
+ * Arch-specific headers can provide any combination of
+ * AV_[RW][BLN](16|24|32|64) and AV_(COPY|SWAP|ZERO)(64|128) macros.
+ * Preprocessor symbols must be defined, even if these are implemented
+ * as inline functions.
+ */
+
+#ifdef HAVE_AV_CONFIG_H
+
+#include "config.h"
+
+#if ARCH_ARM
+# include "arm/intreadwrite.h"
+#elif ARCH_AVR32
+# include "avr32/intreadwrite.h"
+#elif ARCH_MIPS
+# include "mips/intreadwrite.h"
+#elif ARCH_PPC
+# include "ppc/intreadwrite.h"
+#elif ARCH_TOMI
+# include "tomi/intreadwrite.h"
+#elif ARCH_X86
+# include "x86/intreadwrite.h"
+#endif
+
+#endif /* HAVE_AV_CONFIG_H */
+
+/*
+ * Map AV_RNXX <-> AV_R[BL]XX for all variants provided by per-arch headers.
+ */
+
+#if AV_HAVE_BIGENDIAN
+
+# if defined(AV_RN16) && !defined(AV_RB16)
+# define AV_RB16(p) AV_RN16(p)
+# elif !defined(AV_RN16) && defined(AV_RB16)
+# define AV_RN16(p) AV_RB16(p)
+# endif
+
+# if defined(AV_WN16) && !defined(AV_WB16)
+# define AV_WB16(p, v) AV_WN16(p, v)
+# elif !defined(AV_WN16) && defined(AV_WB16)
+# define AV_WN16(p, v) AV_WB16(p, v)
+# endif
+
+# if defined(AV_RN24) && !defined(AV_RB24)
+# define AV_RB24(p) AV_RN24(p)
+# elif !defined(AV_RN24) && defined(AV_RB24)
+# define AV_RN24(p) AV_RB24(p)
+# endif
+
+# if defined(AV_WN24) && !defined(AV_WB24)
+# define AV_WB24(p, v) AV_WN24(p, v)
+# elif !defined(AV_WN24) && defined(AV_WB24)
+# define AV_WN24(p, v) AV_WB24(p, v)
+# endif
+
+# if defined(AV_RN32) && !defined(AV_RB32)
+# define AV_RB32(p) AV_RN32(p)
+# elif !defined(AV_RN32) && defined(AV_RB32)
+# define AV_RN32(p) AV_RB32(p)
+# endif
+
+# if defined(AV_WN32) && !defined(AV_WB32)
+# define AV_WB32(p, v) AV_WN32(p, v)
+# elif !defined(AV_WN32) && defined(AV_WB32)
+# define AV_WN32(p, v) AV_WB32(p, v)
+# endif
+
+# if defined(AV_RN64) && !defined(AV_RB64)
+# define AV_RB64(p) AV_RN64(p)
+# elif !defined(AV_RN64) && defined(AV_RB64)
+# define AV_RN64(p) AV_RB64(p)
+# endif
+
+# if defined(AV_WN64) && !defined(AV_WB64)
+# define AV_WB64(p, v) AV_WN64(p, v)
+# elif !defined(AV_WN64) && defined(AV_WB64)
+# define AV_WN64(p, v) AV_WB64(p, v)
+# endif
+
+#else /* AV_HAVE_BIGENDIAN */
+
+# if defined(AV_RN16) && !defined(AV_RL16)
+# define AV_RL16(p) AV_RN16(p)
+# elif !defined(AV_RN16) && defined(AV_RL16)
+# define AV_RN16(p) AV_RL16(p)
+# endif
+
+# if defined(AV_WN16) && !defined(AV_WL16)
+# define AV_WL16(p, v) AV_WN16(p, v)
+# elif !defined(AV_WN16) && defined(AV_WL16)
+# define AV_WN16(p, v) AV_WL16(p, v)
+# endif
+
+# if defined(AV_RN24) && !defined(AV_RL24)
+# define AV_RL24(p) AV_RN24(p)
+# elif !defined(AV_RN24) && defined(AV_RL24)
+# define AV_RN24(p) AV_RL24(p)
+# endif
+
+# if defined(AV_WN24) && !defined(AV_WL24)
+# define AV_WL24(p, v) AV_WN24(p, v)
+# elif !defined(AV_WN24) && defined(AV_WL24)
+# define AV_WN24(p, v) AV_WL24(p, v)
+# endif
+
+# if defined(AV_RN32) && !defined(AV_RL32)
+# define AV_RL32(p) AV_RN32(p)
+# elif !defined(AV_RN32) && defined(AV_RL32)
+# define AV_RN32(p) AV_RL32(p)
+# endif
+
+# if defined(AV_WN32) && !defined(AV_WL32)
+# define AV_WL32(p, v) AV_WN32(p, v)
+# elif !defined(AV_WN32) && defined(AV_WL32)
+# define AV_WN32(p, v) AV_WL32(p, v)
+# endif
+
+# if defined(AV_RN64) && !defined(AV_RL64)
+# define AV_RL64(p) AV_RN64(p)
+# elif !defined(AV_RN64) && defined(AV_RL64)
+# define AV_RN64(p) AV_RL64(p)
+# endif
+
+# if defined(AV_WN64) && !defined(AV_WL64)
+# define AV_WL64(p, v) AV_WN64(p, v)
+# elif !defined(AV_WN64) && defined(AV_WL64)
+# define AV_WN64(p, v) AV_WL64(p, v)
+# endif
+
+#endif /* !AV_HAVE_BIGENDIAN */
+
+/*
+ * Define AV_[RW]N helper macros to simplify definitions not provided
+ * by per-arch headers.
+ */
+
+#if defined(__GNUC__) && !defined(__TI_COMPILER_VERSION__)
+
+union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias;
+union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias;
+union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias;
+
+# define AV_RN(s, p) (((const union unaligned_##s *) (p))->l)
+# define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v))
+
+#elif defined(__DECC)
+
+# define AV_RN(s, p) (*((const __unaligned uint##s##_t*)(p)))
+# define AV_WN(s, p, v) (*((__unaligned uint##s##_t*)(p)) = (v))
+
+#elif AV_HAVE_FAST_UNALIGNED
+
+# define AV_RN(s, p) (((const av_alias##s*)(p))->u##s)
+# define AV_WN(s, p, v) (((av_alias##s*)(p))->u##s = (v))
+
+#else
+
+#ifndef AV_RB16
+# define AV_RB16(x) \
+ ((((const uint8_t*)(x))[0] << 8) | \
+ ((const uint8_t*)(x))[1])
+#endif
+#ifndef AV_WB16
+# define AV_WB16(p, d) do { \
+ ((uint8_t*)(p))[1] = (d); \
+ ((uint8_t*)(p))[0] = (d)>>8; \
+ } while(0)
+#endif
+
+#ifndef AV_RL16
+# define AV_RL16(x) \
+ ((((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL16
+# define AV_WL16(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ } while(0)
+#endif
+
+#ifndef AV_RB32
+# define AV_RB32(x) \
+ (((uint32_t)((const uint8_t*)(x))[0] << 24) | \
+ (((const uint8_t*)(x))[1] << 16) | \
+ (((const uint8_t*)(x))[2] << 8) | \
+ ((const uint8_t*)(x))[3])
+#endif
+#ifndef AV_WB32
+# define AV_WB32(p, d) do { \
+ ((uint8_t*)(p))[3] = (d); \
+ ((uint8_t*)(p))[2] = (d)>>8; \
+ ((uint8_t*)(p))[1] = (d)>>16; \
+ ((uint8_t*)(p))[0] = (d)>>24; \
+ } while(0)
+#endif
+
+#ifndef AV_RL32
+# define AV_RL32(x) \
+ (((uint32_t)((const uint8_t*)(x))[3] << 24) | \
+ (((const uint8_t*)(x))[2] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL32
+# define AV_WL32(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ ((uint8_t*)(p))[3] = (d)>>24; \
+ } while(0)
+#endif
+
+#ifndef AV_RB64
+# define AV_RB64(x) \
+ (((uint64_t)((const uint8_t*)(x))[0] << 56) | \
+ ((uint64_t)((const uint8_t*)(x))[1] << 48) | \
+ ((uint64_t)((const uint8_t*)(x))[2] << 40) | \
+ ((uint64_t)((const uint8_t*)(x))[3] << 32) | \
+ ((uint64_t)((const uint8_t*)(x))[4] << 24) | \
+ ((uint64_t)((const uint8_t*)(x))[5] << 16) | \
+ ((uint64_t)((const uint8_t*)(x))[6] << 8) | \
+ (uint64_t)((const uint8_t*)(x))[7])
+#endif
+#ifndef AV_WB64
+# define AV_WB64(p, d) do { \
+ ((uint8_t*)(p))[7] = (d); \
+ ((uint8_t*)(p))[6] = (d)>>8; \
+ ((uint8_t*)(p))[5] = (d)>>16; \
+ ((uint8_t*)(p))[4] = (d)>>24; \
+ ((uint8_t*)(p))[3] = (d)>>32; \
+ ((uint8_t*)(p))[2] = (d)>>40; \
+ ((uint8_t*)(p))[1] = (d)>>48; \
+ ((uint8_t*)(p))[0] = (d)>>56; \
+ } while(0)
+#endif
+
+#ifndef AV_RL64
+# define AV_RL64(x) \
+ (((uint64_t)((const uint8_t*)(x))[7] << 56) | \
+ ((uint64_t)((const uint8_t*)(x))[6] << 48) | \
+ ((uint64_t)((const uint8_t*)(x))[5] << 40) | \
+ ((uint64_t)((const uint8_t*)(x))[4] << 32) | \
+ ((uint64_t)((const uint8_t*)(x))[3] << 24) | \
+ ((uint64_t)((const uint8_t*)(x))[2] << 16) | \
+ ((uint64_t)((const uint8_t*)(x))[1] << 8) | \
+ (uint64_t)((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL64
+# define AV_WL64(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ ((uint8_t*)(p))[3] = (d)>>24; \
+ ((uint8_t*)(p))[4] = (d)>>32; \
+ ((uint8_t*)(p))[5] = (d)>>40; \
+ ((uint8_t*)(p))[6] = (d)>>48; \
+ ((uint8_t*)(p))[7] = (d)>>56; \
+ } while(0)
+#endif
+
+#if AV_HAVE_BIGENDIAN
+# define AV_RN(s, p) AV_RB##s(p)
+# define AV_WN(s, p, v) AV_WB##s(p, v)
+#else
+# define AV_RN(s, p) AV_RL##s(p)
+# define AV_WN(s, p, v) AV_WL##s(p, v)
+#endif
+
+#endif /* HAVE_FAST_UNALIGNED */
+
+#ifndef AV_RN16
+# define AV_RN16(p) AV_RN(16, p)
+#endif
+
+#ifndef AV_RN32
+# define AV_RN32(p) AV_RN(32, p)
+#endif
+
+#ifndef AV_RN64
+# define AV_RN64(p) AV_RN(64, p)
+#endif
+
+#ifndef AV_WN16
+# define AV_WN16(p, v) AV_WN(16, p, v)
+#endif
+
+#ifndef AV_WN32
+# define AV_WN32(p, v) AV_WN(32, p, v)
+#endif
+
+#ifndef AV_WN64
+# define AV_WN64(p, v) AV_WN(64, p, v)
+#endif
+
+#if AV_HAVE_BIGENDIAN
+# define AV_RB(s, p) AV_RN##s(p)
+# define AV_WB(s, p, v) AV_WN##s(p, v)
+# define AV_RL(s, p) av_bswap##s(AV_RN##s(p))
+# define AV_WL(s, p, v) AV_WN##s(p, av_bswap##s(v))
+#else
+# define AV_RB(s, p) av_bswap##s(AV_RN##s(p))
+# define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v))
+# define AV_RL(s, p) AV_RN##s(p)
+# define AV_WL(s, p, v) AV_WN##s(p, v)
+#endif
+
+#define AV_RB8(x) (((const uint8_t*)(x))[0])
+#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0)
+
+#define AV_RL8(x) AV_RB8(x)
+#define AV_WL8(p, d) AV_WB8(p, d)
+
+#ifndef AV_RB16
+# define AV_RB16(p) AV_RB(16, p)
+#endif
+#ifndef AV_WB16
+# define AV_WB16(p, v) AV_WB(16, p, v)
+#endif
+
+#ifndef AV_RL16
+# define AV_RL16(p) AV_RL(16, p)
+#endif
+#ifndef AV_WL16
+# define AV_WL16(p, v) AV_WL(16, p, v)
+#endif
+
+#ifndef AV_RB32
+# define AV_RB32(p) AV_RB(32, p)
+#endif
+#ifndef AV_WB32
+# define AV_WB32(p, v) AV_WB(32, p, v)
+#endif
+
+#ifndef AV_RL32
+# define AV_RL32(p) AV_RL(32, p)
+#endif
+#ifndef AV_WL32
+# define AV_WL32(p, v) AV_WL(32, p, v)
+#endif
+
+#ifndef AV_RB64
+# define AV_RB64(p) AV_RB(64, p)
+#endif
+#ifndef AV_WB64
+# define AV_WB64(p, v) AV_WB(64, p, v)
+#endif
+
+#ifndef AV_RL64
+# define AV_RL64(p) AV_RL(64, p)
+#endif
+#ifndef AV_WL64
+# define AV_WL64(p, v) AV_WL(64, p, v)
+#endif
+
+#ifndef AV_RB24
+# define AV_RB24(x) \
+ ((((const uint8_t*)(x))[0] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[2])
+#endif
+#ifndef AV_WB24
+# define AV_WB24(p, d) do { \
+ ((uint8_t*)(p))[2] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[0] = (d)>>16; \
+ } while(0)
+#endif
+
+#ifndef AV_RL24
+# define AV_RL24(x) \
+ ((((const uint8_t*)(x))[2] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL24
+# define AV_WL24(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ } while(0)
+#endif
+
+/*
+ * The AV_[RW]NA macros access naturally aligned data
+ * in a type-safe way.
+ */
+
+#define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s)
+#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v))
+
+#ifndef AV_RN16A
+# define AV_RN16A(p) AV_RNA(16, p)
+#endif
+
+#ifndef AV_RN32A
+# define AV_RN32A(p) AV_RNA(32, p)
+#endif
+
+#ifndef AV_RN64A
+# define AV_RN64A(p) AV_RNA(64, p)
+#endif
+
+#ifndef AV_WN16A
+# define AV_WN16A(p, v) AV_WNA(16, p, v)
+#endif
+
+#ifndef AV_WN32A
+# define AV_WN32A(p, v) AV_WNA(32, p, v)
+#endif
+
+#ifndef AV_WN64A
+# define AV_WN64A(p, v) AV_WNA(64, p, v)
+#endif
+
+/* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be
+ * naturally aligned. They may be implemented using MMX,
+ * so emms_c() must be called before using any float code
+ * afterwards.
+ */
+
+#define AV_COPY(n, d, s) \
+ (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)
+
+#ifndef AV_COPY16
+# define AV_COPY16(d, s) AV_COPY(16, d, s)
+#endif
+
+#ifndef AV_COPY32
+# define AV_COPY32(d, s) AV_COPY(32, d, s)
+#endif
+
+#ifndef AV_COPY64
+# define AV_COPY64(d, s) AV_COPY(64, d, s)
+#endif
+
+#ifndef AV_COPY128
+# define AV_COPY128(d, s) \
+ do { \
+ AV_COPY64(d, s); \
+ AV_COPY64((char*)(d)+8, (char*)(s)+8); \
+ } while(0)
+#endif
+
+#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))
+
+#ifndef AV_SWAP64
+# define AV_SWAP64(a, b) AV_SWAP(64, a, b)
+#endif
+
+#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0)
+
+#ifndef AV_ZERO16
+# define AV_ZERO16(d) AV_ZERO(16, d)
+#endif
+
+#ifndef AV_ZERO32
+# define AV_ZERO32(d) AV_ZERO(32, d)
+#endif
+
+#ifndef AV_ZERO64
+# define AV_ZERO64(d) AV_ZERO(64, d)
+#endif
+
+#ifndef AV_ZERO128
+# define AV_ZERO128(d) \
+ do { \
+ AV_ZERO64(d); \
+ AV_ZERO64((char*)(d)+8); \
+ } while(0)
+#endif
+
+#endif /* AVUTIL_INTREADWRITE_H */
--- /dev/null
+/*
+ * Lagged Fibonacci PRNG
+ * Copyright (c) 2008 Michael Niedermayer
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LFG_H
+#define AVUTIL_LFG_H
+
+typedef struct {
+ unsigned int state[64];
+ int index;
+} AVLFG;
+
+void av_lfg_init(AVLFG *c, unsigned int seed);
+
+/**
+ * Get the next random unsigned 32-bit number using an ALFG.
+ *
+ * Please also consider a simple LCG like state= state*1664525+1013904223,
+ * it may be good enough and faster for your specific use case.
+ */
+static inline unsigned int av_lfg_get(AVLFG *c){
+ c->state[c->index & 63] = c->state[(c->index-24) & 63] + c->state[(c->index-55) & 63];
+ return c->state[c->index++ & 63];
+}
+
+/**
+ * Get the next random unsigned 32-bit number using a MLFG.
+ *
+ * Please also consider av_lfg_get() above, it is faster.
+ */
+static inline unsigned int av_mlfg_get(AVLFG *c){
+ unsigned int a= c->state[(c->index-55) & 63];
+ unsigned int b= c->state[(c->index-24) & 63];
+ return c->state[c->index++ & 63] = 2*a*b+a+b;
+}
+
+/**
+ * Get the next two numbers generated by a Box-Muller Gaussian
+ * generator using the random numbers issued by lfg.
+ *
+ * @param out array where the two generated numbers are placed
+ */
+void av_bmg_get(AVLFG *lfg, double out[2]);
+
+#endif /* AVUTIL_LFG_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LOG_H
+#define AVUTIL_LOG_H
+
+#include <stdarg.h>
+#include "avutil.h"
+
+/**
+ * Describe the class of an AVClass context structure. That is an
+ * arbitrary struct of which the first field is a pointer to an
+ * AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).
+ */
+typedef struct {
+ /**
+ * The name of the class; usually it is the same name as the
+ * context structure type to which the AVClass is associated.
+ */
+ const char* class_name;
+
+ /**
+ * A pointer to a function which returns the name of a context
+ * instance ctx associated with the class.
+ */
+ const char* (*item_name)(void* ctx);
+
+ /**
+ * a pointer to the first option specified in the class if any or NULL
+ *
+ * @see av_set_default_options()
+ */
+ const struct AVOption *option;
+
+ /**
+ * LIBAVUTIL_VERSION with which this structure was created.
+ * This is used to allow fields to be added without requiring major
+ * version bumps everywhere.
+ */
+
+ int version;
+
+ /**
+ * Offset in the structure where log_level_offset is stored.
+ * 0 means there is no such variable
+ */
+ int log_level_offset_offset;
+
+ /**
+ * Offset in the structure where a pointer to the parent context for loging is stored.
+ * for example a decoder that uses eval.c could pass its AVCodecContext to eval as such
+ * parent context. And a av_log() implementation could then display the parent context
+ * can be NULL of course
+ */
+ int parent_log_context_offset;
+
+ /**
+ * A function for extended searching, e.g. in possible
+ * children objects.
+ */
+ const struct AVOption* (*opt_find)(void *obj, const char *name, const char *unit,
+ int opt_flags, int search_flags);
+} AVClass;
+
+/* av_log API */
+
+#define AV_LOG_QUIET -8
+
+/**
+ * Something went really wrong and we will crash now.
+ */
+#define AV_LOG_PANIC 0
+
+/**
+ * Something went wrong and recovery is not possible.
+ * For example, no header was found for a format which depends
+ * on headers or an illegal combination of parameters is used.
+ */
+#define AV_LOG_FATAL 8
+
+/**
+ * Something went wrong and cannot losslessly be recovered.
+ * However, not all future data is affected.
+ */
+#define AV_LOG_ERROR 16
+
+/**
+ * Something somehow does not look correct. This may or may not
+ * lead to problems. An example would be the use of '-vstrict -2'.
+ */
+#define AV_LOG_WARNING 24
+
+#define AV_LOG_INFO 32
+#define AV_LOG_VERBOSE 40
+
+/**
+ * Stuff which is only useful for libav* developers.
+ */
+#define AV_LOG_DEBUG 48
+
+/**
+ * Send the specified message to the log if the level is less than or equal
+ * to the current av_log_level. By default, all logging messages are sent to
+ * stderr. This behavior can be altered by setting a different av_vlog callback
+ * function.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param fmt The format string (printf-compatible) that specifies how
+ * subsequent arguments are converted to output.
+ * @see av_vlog
+ */
+#ifdef __GNUC__
+void av_log(void *avcl, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
+#else
+void av_log(void *avcl, int level, const char *fmt, ...);
+#endif
+
+void av_vlog(void *avcl, int level, const char *fmt, va_list);
+int av_log_get_level(void);
+void av_log_set_level(int);
+void av_log_set_callback(void (*)(void*, int, const char*, va_list));
+void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl);
+const char* av_default_item_name(void* ctx);
+
+/**
+ * av_dlog macros
+ * Useful to print debug messages that shouldn't get compiled in normally.
+ */
+
+#ifdef DEBUG
+# define av_dlog(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
+#else
+# define av_dlog(pctx, ...)
+#endif
+
+/**
+ * Skip repeated messages, this requires the user app to use av_log() instead of
+ * (f)printf as the 2 would otherwise interfere and lead to
+ * "Last message repeated x times" messages below (f)printf messages with some
+ * bad luck.
+ * Also to receive the last, "last repeated" line if any, the user app must
+ * call av_log(NULL, AV_LOG_QUIET, ""); at the end
+ */
+#define AV_LOG_SKIP_REPEATED 1
+void av_log_set_flags(int arg);
+
+#endif /* AVUTIL_LOG_H */
--- /dev/null
+/*
+ * LZO 1x decompression
+ * copyright (c) 2006 Reimar Doeffinger
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LZO_H
+#define AVUTIL_LZO_H
+
+#include <stdint.h>
+
+/** @name Error flags returned by av_lzo1x_decode
+ * \{ */
+//! end of the input buffer reached before decoding finished
+#define AV_LZO_INPUT_DEPLETED 1
+//! decoded data did not fit into output buffer
+#define AV_LZO_OUTPUT_FULL 2
+//! a reference to previously decoded data was wrong
+#define AV_LZO_INVALID_BACKPTR 4
+//! a non-specific error in the compressed bitstream
+#define AV_LZO_ERROR 8
+/** \} */
+
+#define AV_LZO_INPUT_PADDING 8
+#define AV_LZO_OUTPUT_PADDING 12
+
+/**
+ * \brief Decodes LZO 1x compressed data.
+ * \param out output buffer
+ * \param outlen size of output buffer, number of bytes left are returned here
+ * \param in input buffer
+ * \param inlen size of input buffer, number of bytes left are returned here
+ * \return 0 on success, otherwise a combination of the error flags above
+ *
+ * Make sure all buffers are appropriately padded, in must provide
+ * AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes.
+ */
+int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen);
+
+/**
+ * \brief deliberately overlapping memcpy implementation
+ * \param dst destination buffer; must be padded with 12 additional bytes
+ * \param back how many bytes back we start (the initial size of the overlapping window)
+ * \param cnt number of bytes to copy, must be >= 0
+ *
+ * cnt > back is valid, this will copy the bytes we just copied,
+ * thus creating a repeating pattern with a period length of back.
+ */
+void av_memcpy_backptr(uint8_t *dst, int back, int cnt);
+
+#endif /* AVUTIL_LZO_H */
--- /dev/null
+/*
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_MATHEMATICS_H
+#define AVUTIL_MATHEMATICS_H
+
+#include <stdint.h>
+#include <math.h>
+#include "attributes.h"
+#include "rational.h"
+
+#ifndef M_E
+#define M_E 2.7182818284590452354 /* e */
+#endif
+#ifndef M_LN2
+#define M_LN2 0.69314718055994530942 /* log_e 2 */
+#endif
+#ifndef M_LN10
+#define M_LN10 2.30258509299404568402 /* log_e 10 */
+#endif
+#ifndef M_LOG2_10
+#define M_LOG2_10 3.32192809488736234787 /* log_2 10 */
+#endif
+#ifndef M_PHI
+#define M_PHI 1.61803398874989484820 /* phi / golden ratio */
+#endif
+#ifndef M_PI
+#define M_PI 3.14159265358979323846 /* pi */
+#endif
+#ifndef M_SQRT1_2
+#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
+#endif
+#ifndef M_SQRT2
+#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
+#endif
+#ifndef NAN
+#define NAN (0.0/0.0)
+#endif
+#ifndef INFINITY
+#define INFINITY (1.0/0.0)
+#endif
+
+enum AVRounding {
+ AV_ROUND_ZERO = 0, ///< Round toward zero.
+ AV_ROUND_INF = 1, ///< Round away from zero.
+ AV_ROUND_DOWN = 2, ///< Round toward -infinity.
+ AV_ROUND_UP = 3, ///< Round toward +infinity.
+ AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero.
+};
+
+/**
+ * Return the greatest common divisor of a and b.
+ * If both a and b are 0 or either or both are <0 then behavior is
+ * undefined.
+ */
+int64_t av_const av_gcd(int64_t a, int64_t b);
+
+/**
+ * Rescale a 64-bit integer with rounding to nearest.
+ * A simple a*b/c isn't possible as it can overflow.
+ */
+int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
+
+/**
+ * Rescale a 64-bit integer with specified rounding.
+ * A simple a*b/c isn't possible as it can overflow.
+ */
+int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const;
+
+/**
+ * Rescale a 64-bit integer by 2 rational numbers.
+ */
+int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
+
+/**
+ * Compare 2 timestamps each in its own timebases.
+ * The result of the function is undefined if one of the timestamps
+ * is outside the int64_t range when represented in the others timebase.
+ * @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position
+ */
+int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b);
+
+/**
+ * Compare 2 integers modulo mod.
+ * That is we compare integers a and b for which only the least
+ * significant log2(mod) bits are known.
+ *
+ * @param mod must be a power of 2
+ * @return a negative value if a is smaller than b
+ * a positive value if a is greater than b
+ * 0 if a equals b
+ */
+int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod);
+
+#endif /* AVUTIL_MATHEMATICS_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_MD5_H
+#define AVUTIL_MD5_H
+
+#include <stdint.h>
+
+extern const int av_md5_size;
+
+struct AVMD5;
+
+void av_md5_init(struct AVMD5 *ctx);
+void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, const int len);
+void av_md5_final(struct AVMD5 *ctx, uint8_t *dst);
+void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len);
+
+#endif /* AVUTIL_MD5_H */
+
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * memory handling functions
+ */
+
+#ifndef AVUTIL_MEM_H
+#define AVUTIL_MEM_H
+
+#include "attributes.h"
+#include "avutil.h"
+
+#if defined(__ICC) && _ICC < 1200 || defined(__SUNPRO_C)
+ #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
+ #define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v
+#elif defined(__TI_COMPILER_VERSION__)
+ #define DECLARE_ALIGNED(n,t,v) \
+ AV_PRAGMA(DATA_ALIGN(v,n)) \
+ t __attribute__((aligned(n))) v
+ #define DECLARE_ASM_CONST(n,t,v) \
+ AV_PRAGMA(DATA_ALIGN(v,n)) \
+ static const t __attribute__((aligned(n))) v
+#elif defined(__GNUC__)
+ #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
+ #define DECLARE_ASM_CONST(n,t,v) static const t av_used __attribute__ ((aligned (n))) v
+#elif defined(_MSC_VER)
+ #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
+ #define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v
+#else
+ #define DECLARE_ALIGNED(n,t,v) t v
+ #define DECLARE_ASM_CONST(n,t,v) static const t v
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+ #define av_malloc_attrib __attribute__((__malloc__))
+#else
+ #define av_malloc_attrib
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(4,3)
+ #define av_alloc_size(n) __attribute__((alloc_size(n)))
+#else
+ #define av_alloc_size(n)
+#endif
+
+/**
+ * Allocate a block of size bytes with alignment suitable for all
+ * memory accesses (including vectors if available on the CPU).
+ * @param size Size in bytes for the memory block to be allocated.
+ * @return Pointer to the allocated block, NULL if the block cannot
+ * be allocated.
+ * @see av_mallocz()
+ */
+void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1);
+
+/**
+ * Allocate or reallocate a block of memory.
+ * If ptr is NULL and size > 0, allocate a new block. If
+ * size is zero, free the memory block pointed to by ptr.
+ * @param size Size in bytes for the memory block to be allocated or
+ * reallocated.
+ * @param ptr Pointer to a memory block already allocated with
+ * av_malloc(z)() or av_realloc() or NULL.
+ * @return Pointer to a newly reallocated block or NULL if the block
+ * cannot be reallocated or the function is used to free the memory block.
+ * @see av_fast_realloc()
+ */
+void *av_realloc(void *ptr, size_t size) av_alloc_size(2);
+
+/**
+ * Free a memory block which has been allocated with av_malloc(z)() or
+ * av_realloc().
+ * @param ptr Pointer to the memory block which should be freed.
+ * @note ptr = NULL is explicitly allowed.
+ * @note It is recommended that you use av_freep() instead.
+ * @see av_freep()
+ */
+void av_free(void *ptr);
+
+/**
+ * Allocate a block of size bytes with alignment suitable for all
+ * memory accesses (including vectors if available on the CPU) and
+ * zero all the bytes of the block.
+ * @param size Size in bytes for the memory block to be allocated.
+ * @return Pointer to the allocated block, NULL if it cannot be allocated.
+ * @see av_malloc()
+ */
+void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1);
+
+/**
+ * Duplicate the string s.
+ * @param s string to be duplicated
+ * @return Pointer to a newly allocated string containing a
+ * copy of s or NULL if the string cannot be allocated.
+ */
+char *av_strdup(const char *s) av_malloc_attrib;
+
+/**
+ * Free a memory block which has been allocated with av_malloc(z)() or
+ * av_realloc() and set the pointer pointing to it to NULL.
+ * @param ptr Pointer to the pointer to the memory block which should
+ * be freed.
+ * @see av_free()
+ */
+void av_freep(void *ptr);
+
+#endif /* AVUTIL_MEM_H */
--- /dev/null
+/*
+ * AVOptions
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_OPT_H
+#define AVUTIL_OPT_H
+
+/**
+ * @file
+ * AVOptions
+ */
+
+#include "rational.h"
+#include "avutil.h"
+#include "dict.h"
+
+enum AVOptionType{
+ FF_OPT_TYPE_FLAGS,
+ FF_OPT_TYPE_INT,
+ FF_OPT_TYPE_INT64,
+ FF_OPT_TYPE_DOUBLE,
+ FF_OPT_TYPE_FLOAT,
+ FF_OPT_TYPE_STRING,
+ FF_OPT_TYPE_RATIONAL,
+ FF_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length
+ FF_OPT_TYPE_CONST=128,
+};
+
+/**
+ * AVOption
+ */
+typedef struct AVOption {
+ const char *name;
+
+ /**
+ * short English help text
+ * @todo What about other languages?
+ */
+ const char *help;
+
+ /**
+ * The offset relative to the context structure where the option
+ * value is stored. It should be 0 for named constants.
+ */
+ int offset;
+ enum AVOptionType type;
+
+ /**
+ * the default value for scalar options
+ */
+ union {
+ double dbl;
+ const char *str;
+ /* TODO those are unused now */
+ int64_t i64;
+ AVRational q;
+ } default_val;
+ double min; ///< minimum valid value for the option
+ double max; ///< maximum valid value for the option
+
+ int flags;
+#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding
+#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding
+#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ...
+#define AV_OPT_FLAG_AUDIO_PARAM 8
+#define AV_OPT_FLAG_VIDEO_PARAM 16
+#define AV_OPT_FLAG_SUBTITLE_PARAM 32
+//FIXME think about enc-audio, ... style flags
+
+ /**
+ * The logical unit to which the option belongs. Non-constant
+ * options and corresponding named constants share the same
+ * unit. May be NULL.
+ */
+ const char *unit;
+} AVOption;
+
+#if FF_API_FIND_OPT
+/**
+ * Look for an option in obj. Look only for the options which
+ * have the flags set as specified in mask and flags (that is,
+ * for which it is the case that opt->flags & mask == flags).
+ *
+ * @param[in] obj a pointer to a struct whose first element is a
+ * pointer to an AVClass
+ * @param[in] name the name of the option to look for
+ * @param[in] unit the unit of the option to look for, or any if NULL
+ * @return a pointer to the option found, or NULL if no option
+ * has been found
+ *
+ * @deprecated use av_opt_find.
+ */
+attribute_deprecated
+const AVOption *av_find_opt(void *obj, const char *name, const char *unit, int mask, int flags);
+#endif
+
+/**
+ * Set the field of obj with the given name to value.
+ *
+ * @param[in] obj A struct whose first element is a pointer to an
+ * AVClass.
+ * @param[in] name the name of the field to set
+ * @param[in] val The value to set. If the field is not of a string
+ * type, then the given string is parsed.
+ * SI postfixes and some named scalars are supported.
+ * If the field is of a numeric type, it has to be a numeric or named
+ * scalar. Behavior with more than one scalar and +- infix operators
+ * is undefined.
+ * If the field is of a flags type, it has to be a sequence of numeric
+ * scalars or named flags separated by '+' or '-'. Prefixing a flag
+ * with '+' causes it to be set without affecting the other flags;
+ * similarly, '-' unsets a flag.
+ * @param[out] o_out if non-NULL put here a pointer to the AVOption
+ * found
+ * @param alloc when 1 then the old value will be av_freed() and the
+ * new av_strduped()
+ * when 0 then no av_free() nor av_strdup() will be used
+ * @return 0 if the value has been set, or an AVERROR code in case of
+ * error:
+ * AVERROR_OPTION_NOT_FOUND if no matching option exists
+ * AVERROR(ERANGE) if the value is out of range
+ * AVERROR(EINVAL) if the value is not valid
+ */
+int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out);
+
+const AVOption *av_set_double(void *obj, const char *name, double n);
+const AVOption *av_set_q(void *obj, const char *name, AVRational n);
+const AVOption *av_set_int(void *obj, const char *name, int64_t n);
+double av_get_double(void *obj, const char *name, const AVOption **o_out);
+AVRational av_get_q(void *obj, const char *name, const AVOption **o_out);
+int64_t av_get_int(void *obj, const char *name, const AVOption **o_out);
+const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len);
+const AVOption *av_next_option(void *obj, const AVOption *last);
+
+/**
+ * Show the obj options.
+ *
+ * @param req_flags requested flags for the options to show. Show only the
+ * options for which it is opt->flags & req_flags.
+ * @param rej_flags rejected flags for the options to show. Show only the
+ * options for which it is !(opt->flags & req_flags).
+ * @param av_log_obj log context to use for showing the options
+ */
+int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags);
+
+void av_opt_set_defaults(void *s);
+void av_opt_set_defaults2(void *s, int mask, int flags);
+
+/**
+ * Parse the key/value pairs list in opts. For each key/value pair
+ * found, stores the value in the field in ctx that is named like the
+ * key. ctx must be an AVClass context, storing is done using
+ * AVOptions.
+ *
+ * @param key_val_sep a 0-terminated list of characters used to
+ * separate key from value
+ * @param pairs_sep a 0-terminated list of characters used to separate
+ * two pairs from each other
+ * @return the number of successfully set key/value pairs, or a negative
+ * value corresponding to an AVERROR code in case of error:
+ * AVERROR(EINVAL) if opts cannot be parsed,
+ * the error code issued by av_set_string3() if a key/value pair
+ * cannot be set
+ */
+int av_set_options_string(void *ctx, const char *opts,
+ const char *key_val_sep, const char *pairs_sep);
+
+/**
+ * Free all string and binary options in obj.
+ */
+void av_opt_free(void *obj);
+
+/**
+ * Check whether a particular flag is set in a flags field.
+ *
+ * @param field_name the name of the flag field option
+ * @param flag_name the name of the flag to check
+ * @return non-zero if the flag is set, zero if the flag isn't set,
+ * isn't of the right type, or the flags field doesn't exist.
+ */
+int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name);
+
+/*
+ * Set all the options from a given dictionary on an object.
+ *
+ * @param obj a struct whose first element is a pointer to AVClass
+ * @param options options to process. This dictionary will be freed and replaced
+ * by a new one containing all options not found in obj.
+ * Of course this new dictionary needs to be freed by caller
+ * with av_dict_free().
+ *
+ * @return 0 on success, a negative AVERROR if some option was found in obj,
+ * but could not be set.
+ *
+ * @see av_dict_copy()
+ */
+int av_opt_set_dict(void *obj, struct AVDictionary **options);
+
+#define AV_OPT_SEARCH_CHILDREN 0x0001 /**< Search in possible children of the
+ given object first. */
+
+/**
+ * Look for an option in an object. Consider only options which
+ * have all the specified flags set.
+ *
+ * @param[in] obj A pointer to a struct whose first element is a
+ * pointer to an AVClass.
+ * @param[in] name The name of the option to look for.
+ * @param[in] unit When searching for named constants, name of the unit
+ * it belongs to.
+ * @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG).
+ * @param search_flags A combination of AV_OPT_SEARCH_*.
+ *
+ * @return A pointer to the option found, or NULL if no option
+ * was found.
+ *
+ * @note Options found with AV_OPT_SEARCH_CHILDREN flag may not be settable
+ * directly with av_set_string3(). Use special calls which take an options
+ * AVDictionary (e.g. avformat_open_input()) to set options found with this
+ * flag.
+ */
+const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
+ int opt_flags, int search_flags);
+
+#endif /* AVUTIL_OPT_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_PARSEUTILS_H
+#define AVUTIL_PARSEUTILS_H
+
+#include "rational.h"
+
+/**
+ * @file
+ * misc parsing utilities
+ */
+
+/**
+ * Parse str and put in width_ptr and height_ptr the detected values.
+ *
+ * @param[in,out] width_ptr pointer to the variable which will contain the detected
+ * width value
+ * @param[in,out] height_ptr pointer to the variable which will contain the detected
+ * height value
+ * @param[in] str the string to parse: it has to be a string in the format
+ * width x height or a valid video size abbreviation.
+ * @return >= 0 on success, a negative error code otherwise
+ */
+int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str);
+
+/**
+ * Parse str and store the detected values in *rate.
+ *
+ * @param[in,out] rate pointer to the AVRational which will contain the detected
+ * frame rate
+ * @param[in] str the string to parse: it has to be a string in the format
+ * rate_num / rate_den, a float number or a valid video rate abbreviation
+ * @return >= 0 on success, a negative error code otherwise
+ */
+int av_parse_video_rate(AVRational *rate, const char *str);
+
+/**
+ * Put the RGBA values that correspond to color_string in rgba_color.
+ *
+ * @param color_string a string specifying a color. It can be the name of
+ * a color (case insensitive match) or a [0x|#]RRGGBB[AA] sequence,
+ * possibly followed by "@" and a string representing the alpha
+ * component.
+ * The alpha component may be a string composed by "0x" followed by an
+ * hexadecimal number or a decimal number between 0.0 and 1.0, which
+ * represents the opacity value (0x00/0.0 means completely transparent,
+ * 0xff/1.0 completely opaque).
+ * If the alpha component is not specified then 0xff is assumed.
+ * The string "random" will result in a random color.
+ * @param slen length of the initial part of color_string containing the
+ * color. It can be set to -1 if color_string is a null terminated string
+ * containing nothing else than the color.
+ * @return >= 0 in case of success, a negative value in case of
+ * failure (for example if color_string cannot be parsed).
+ */
+int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
+ void *log_ctx);
+
+/**
+ * Parses timestr and returns in *time a corresponding number of
+ * microseconds.
+ *
+ * @param timeval puts here the number of microseconds corresponding
+ * to the string in timestr. If the string represents a duration, it
+ * is the number of microseconds contained in the time interval. If
+ * the string is a date, is the number of microseconds since 1st of
+ * January, 1970 up to the time of the parsed date. If timestr cannot
+ * be successfully parsed, set *time to INT64_MIN.
+
+ * @param datestr a string representing a date or a duration.
+ * - If a date the syntax is:
+ * @code
+ * [{YYYY-MM-DD|YYYYMMDD}[T|t| ]]{{HH[:MM[:SS[.m...]]]}|{HH[MM[SS[.m...]]]}}[Z]
+ * now
+ * @endcode
+ * If the value is "now" it takes the current time.
+ * Time is local time unless Z is appended, in which case it is
+ * interpreted as UTC.
+ * If the year-month-day part is not specified it takes the current
+ * year-month-day.
+ * - If a duration the syntax is:
+ * @code
+ * [-]HH[:MM[:SS[.m...]]]
+ * [-]S+[.m...]
+ * @endcode
+ * @param duration flag which tells how to interpret timestr, if not
+ * zero timestr is interpreted as a duration, otherwise as a date
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_parse_time(int64_t *timeval, const char *timestr, int duration);
+
+/**
+ * Attempt to find a specific tag in a URL.
+ *
+ * syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done.
+ * Return 1 if found.
+ */
+int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
+
+#endif /* AVUTIL_PARSEUTILS_H */
--- /dev/null
+/*
+ * pixel format descriptor
+ * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_PIXDESC_H
+#define AVUTIL_PIXDESC_H
+
+#include <inttypes.h>
+#include "pixfmt.h"
+
+typedef struct AVComponentDescriptor{
+ uint16_t plane :2; ///< which of the 4 planes contains the component
+
+ /**
+ * Number of elements between 2 horizontally consecutive pixels minus 1.
+ * Elements are bits for bitstream formats, bytes otherwise.
+ */
+ uint16_t step_minus1 :3;
+
+ /**
+ * Number of elements before the component of the first pixel plus 1.
+ * Elements are bits for bitstream formats, bytes otherwise.
+ */
+ uint16_t offset_plus1 :3;
+ uint16_t shift :3; ///< number of least significant bits that must be shifted away to get the value
+ uint16_t depth_minus1 :4; ///< number of bits in the component minus 1
+}AVComponentDescriptor;
+
+/**
+ * Descriptor that unambiguously describes how the bits of a pixel are
+ * stored in the up to 4 data planes of an image. It also stores the
+ * subsampling factors and number of components.
+ *
+ * @note This is separate of the colorspace (RGB, YCbCr, YPbPr, JPEG-style YUV
+ * and all the YUV variants) AVPixFmtDescriptor just stores how values
+ * are stored not what these values represent.
+ */
+typedef struct AVPixFmtDescriptor{
+ const char *name;
+ uint8_t nb_components; ///< The number of components each pixel has, (1-4)
+
+ /**
+ * Amount to shift the luma width right to find the chroma width.
+ * For YV12 this is 1 for example.
+ * chroma_width = -((-luma_width) >> log2_chroma_w)
+ * The note above is needed to ensure rounding up.
+ * This value only refers to the chroma components.
+ */
+ uint8_t log2_chroma_w; ///< chroma_width = -((-luma_width )>>log2_chroma_w)
+
+ /**
+ * Amount to shift the luma height right to find the chroma height.
+ * For YV12 this is 1 for example.
+ * chroma_height= -((-luma_height) >> log2_chroma_h)
+ * The note above is needed to ensure rounding up.
+ * This value only refers to the chroma components.
+ */
+ uint8_t log2_chroma_h;
+ uint8_t flags;
+
+ /**
+ * Parameters that describe how pixels are packed. If the format
+ * has chroma components, they must be stored in comp[1] and
+ * comp[2].
+ */
+ AVComponentDescriptor comp[4];
+}AVPixFmtDescriptor;
+
+#define PIX_FMT_BE 1 ///< Pixel format is big-endian.
+#define PIX_FMT_PAL 2 ///< Pixel format has a palette in data[1], values are indexes in this palette.
+#define PIX_FMT_BITSTREAM 4 ///< All values of a component are bit-wise packed end to end.
+#define PIX_FMT_HWACCEL 8 ///< Pixel format is an HW accelerated format.
+
+/**
+ * The array of all the pixel format descriptors.
+ */
+extern const AVPixFmtDescriptor av_pix_fmt_descriptors[];
+
+/**
+ * Read a line from an image, and write the values of the
+ * pixel format component c to dst.
+ *
+ * @param data the array containing the pointers to the planes of the image
+ * @param linesize the array containing the linesizes of the image
+ * @param desc the pixel format descriptor for the image
+ * @param x the horizontal coordinate of the first pixel to read
+ * @param y the vertical coordinate of the first pixel to read
+ * @param w the width of the line to read, that is the number of
+ * values to write to dst
+ * @param read_pal_component if not zero and the format is a paletted
+ * format writes the values corresponding to the palette
+ * component c in data[1] to dst, rather than the palette indexes in
+ * data[0]. The behavior is undefined if the format is not paletted.
+ */
+void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
+ const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component);
+
+/**
+ * Write the values from src to the pixel format component c of an
+ * image line.
+ *
+ * @param src array containing the values to write
+ * @param data the array containing the pointers to the planes of the
+ * image to write into. It is supposed to be zeroed.
+ * @param linesize the array containing the linesizes of the image
+ * @param desc the pixel format descriptor for the image
+ * @param x the horizontal coordinate of the first pixel to write
+ * @param y the vertical coordinate of the first pixel to write
+ * @param w the width of the line to write, that is the number of
+ * values to write to the image line
+ */
+void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
+ const AVPixFmtDescriptor *desc, int x, int y, int c, int w);
+
+/**
+ * Return the pixel format corresponding to name.
+ *
+ * If there is no pixel format with name name, then looks for a
+ * pixel format with the name corresponding to the native endian
+ * format of name.
+ * For example in a little-endian system, first looks for "gray16",
+ * then for "gray16le".
+ *
+ * Finally if no pixel format has been found, returns PIX_FMT_NONE.
+ */
+enum PixelFormat av_get_pix_fmt(const char *name);
+
+/**
+ * Return the short name for a pixel format, NULL in case pix_fmt is
+ * unknown.
+ *
+ * @see av_get_pix_fmt(), av_get_pix_fmt_string()
+ */
+const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt);
+
+/**
+ * Print in buf the string corresponding to the pixel format with
+ * number pix_fmt, or an header if pix_fmt is negative.
+ *
+ * @param buf the buffer where to write the string
+ * @param buf_size the size of buf
+ * @param pix_fmt the number of the pixel format to print the
+ * corresponding info string, or a negative value to print the
+ * corresponding header.
+ */
+char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt);
+
+/**
+ * Return the number of bits per pixel used by the pixel format
+ * described by pixdesc.
+ *
+ * The returned number of bits refers to the number of bits actually
+ * used for storing the pixel information, that is padding bits are
+ * not counted.
+ */
+int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc);
+
+#endif /* AVUTIL_PIXDESC_H */
--- /dev/null
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_PIXFMT_H
+#define AVUTIL_PIXFMT_H
+
+/**
+ * @file
+ * pixel format definitions
+ *
+ * @warning This file has to be considered an internal but installed
+ * header, so it should not be directly included in your projects.
+ */
+
+#include "libavutil/avconfig.h"
+
+/**
+ * Pixel format. Notes:
+ *
+ * PIX_FMT_RGB32 is handled in an endian-specific manner. An RGBA
+ * color is put together as:
+ * (A << 24) | (R << 16) | (G << 8) | B
+ * This is stored as BGRA on little-endian CPU architectures and ARGB on
+ * big-endian CPUs.
+ *
+ * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
+ * image data is stored in AVFrame.data[0]. The palette is transported in
+ * AVFrame.data[1], is 1024 bytes long (256 4-byte entries) and is
+ * formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
+ * also endian-specific). Note also that the individual RGB palette
+ * components stored in AVFrame.data[1] should be in the range 0..255.
+ * This is important as many custom PAL8 video codecs that were designed
+ * to run on the IBM VGA graphics adapter use 6-bit palette components.
+ *
+ * For all the 8bit per pixel formats, an RGB32 palette is in data[1] like
+ * for pal8. This palette is filled in automatically by the function
+ * allocating the picture.
+ *
+ * Note, make sure that all newly added big endian formats have pix_fmt&1==1
+ * and that all newly added little endian formats have pix_fmt&1==0
+ * this allows simpler detection of big vs little endian.
+ */
+
+#define PixelFormat FFmpeg_PixelFormat
+
+enum PixelFormat {
+ PIX_FMT_NONE= -1,
+ PIX_FMT_YUV420P, ///< planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
+ PIX_FMT_YUYV422, ///< packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
+ PIX_FMT_RGB24, ///< packed RGB 8:8:8, 24bpp, RGBRGB...
+ PIX_FMT_BGR24, ///< packed RGB 8:8:8, 24bpp, BGRBGR...
+ PIX_FMT_YUV422P, ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
+ PIX_FMT_YUV444P, ///< planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
+ PIX_FMT_YUV410P, ///< planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
+ PIX_FMT_YUV411P, ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
+ PIX_FMT_GRAY8, ///< Y , 8bpp
+ PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb
+ PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb
+ PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
+ PIX_FMT_YUVJ420P, ///< planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_range
+ PIX_FMT_YUVJ422P, ///< planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_range
+ PIX_FMT_YUVJ444P, ///< planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_range
+ PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing
+ PIX_FMT_XVMC_MPEG2_IDCT,
+ PIX_FMT_UYVY422, ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
+ PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
+ PIX_FMT_BGR8, ///< packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
+ PIX_FMT_BGR4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
+ PIX_FMT_BGR4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
+ PIX_FMT_RGB8, ///< packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
+ PIX_FMT_RGB4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
+ PIX_FMT_RGB4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
+ PIX_FMT_NV12, ///< planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (first byte U and the following byte V)
+ PIX_FMT_NV21, ///< as above, but U and V bytes are swapped
+
+ PIX_FMT_ARGB, ///< packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
+ PIX_FMT_RGBA, ///< packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
+ PIX_FMT_ABGR, ///< packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
+ PIX_FMT_BGRA, ///< packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
+
+ PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian
+ PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian
+ PIX_FMT_YUV440P, ///< planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
+ PIX_FMT_YUVJ440P, ///< planar YUV 4:4:0 full scale (JPEG), deprecated in favor of PIX_FMT_YUV440P and setting color_range
+ PIX_FMT_YUVA420P, ///< planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
+ PIX_FMT_VDPAU_H264,///< H.264 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_VDPAU_MPEG1,///< MPEG-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_VDPAU_MPEG2,///< MPEG-2 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_VDPAU_WMV3,///< WMV3 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_VDPAU_VC1, ///< VC-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_RGB48BE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big-endian
+ PIX_FMT_RGB48LE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as little-endian
+
+ PIX_FMT_RGB565BE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
+ PIX_FMT_RGB565LE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
+ PIX_FMT_RGB555BE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), big-endian, most significant bit to 0
+ PIX_FMT_RGB555LE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), little-endian, most significant bit to 0
+
+ PIX_FMT_BGR565BE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
+ PIX_FMT_BGR565LE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
+ PIX_FMT_BGR555BE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), big-endian, most significant bit to 1
+ PIX_FMT_BGR555LE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), little-endian, most significant bit to 1
+
+ PIX_FMT_VAAPI_MOCO, ///< HW acceleration through VA API at motion compensation entry-point, Picture.data[3] contains a vaapi_render_state struct which contains macroblocks as well as various fields extracted from headers
+ PIX_FMT_VAAPI_IDCT, ///< HW acceleration through VA API at IDCT entry-point, Picture.data[3] contains a vaapi_render_state struct which contains fields extracted from headers
+ PIX_FMT_VAAPI_VLD, ///< HW decoding through VA API, Picture.data[3] contains a vaapi_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+
+ PIX_FMT_YUV420P16LE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
+ PIX_FMT_YUV420P16BE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
+ PIX_FMT_YUV422P16LE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
+ PIX_FMT_YUV422P16BE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
+ PIX_FMT_YUV444P16LE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
+ PIX_FMT_YUV444P16BE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+ PIX_FMT_VDPAU_MPEG4, ///< MPEG4 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_DXVA2_VLD, ///< HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer
+
+ PIX_FMT_RGB444LE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), little-endian, most significant bits to 0
+ PIX_FMT_RGB444BE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), big-endian, most significant bits to 0
+ PIX_FMT_BGR444LE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), little-endian, most significant bits to 1
+ PIX_FMT_BGR444BE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), big-endian, most significant bits to 1
+ PIX_FMT_Y400A, ///< 8bit gray, 8bit alpha
+ PIX_FMT_BGR48BE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big-endian
+ PIX_FMT_BGR48LE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as little-endian
+ PIX_FMT_YUV420P9BE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
+ PIX_FMT_YUV420P9LE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
+ PIX_FMT_YUV420P10BE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
+ PIX_FMT_YUV420P10LE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
+ PIX_FMT_YUV422P10BE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
+ PIX_FMT_YUV422P10LE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
+ PIX_FMT_YUV444P9BE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
+ PIX_FMT_YUV444P9LE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+ PIX_FMT_YUV444P10BE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
+ PIX_FMT_YUV444P10LE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+ PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
+};
+
+#if AV_HAVE_BIGENDIAN
+# define PIX_FMT_NE(be, le) PIX_FMT_##be
+#else
+# define PIX_FMT_NE(be, le) PIX_FMT_##le
+#endif
+
+#define PIX_FMT_RGB32 PIX_FMT_NE(ARGB, BGRA)
+#define PIX_FMT_RGB32_1 PIX_FMT_NE(RGBA, ABGR)
+#define PIX_FMT_BGR32 PIX_FMT_NE(ABGR, RGBA)
+#define PIX_FMT_BGR32_1 PIX_FMT_NE(BGRA, ARGB)
+
+#define PIX_FMT_GRAY16 PIX_FMT_NE(GRAY16BE, GRAY16LE)
+#define PIX_FMT_RGB48 PIX_FMT_NE(RGB48BE, RGB48LE)
+#define PIX_FMT_RGB565 PIX_FMT_NE(RGB565BE, RGB565LE)
+#define PIX_FMT_RGB555 PIX_FMT_NE(RGB555BE, RGB555LE)
+#define PIX_FMT_RGB444 PIX_FMT_NE(RGB444BE, RGB444LE)
+#define PIX_FMT_BGR48 PIX_FMT_NE(BGR48BE, BGR48LE)
+#define PIX_FMT_BGR565 PIX_FMT_NE(BGR565BE, BGR565LE)
+#define PIX_FMT_BGR555 PIX_FMT_NE(BGR555BE, BGR555LE)
+#define PIX_FMT_BGR444 PIX_FMT_NE(BGR444BE, BGR444LE)
+
+#define PIX_FMT_YUV420P9 PIX_FMT_NE(YUV420P9BE , YUV420P9LE)
+#define PIX_FMT_YUV444P9 PIX_FMT_NE(YUV444P9BE , YUV444P9LE)
+#define PIX_FMT_YUV420P10 PIX_FMT_NE(YUV420P10BE, YUV420P10LE)
+#define PIX_FMT_YUV422P10 PIX_FMT_NE(YUV422P10BE, YUV422P10LE)
+#define PIX_FMT_YUV444P10 PIX_FMT_NE(YUV444P10BE, YUV444P10LE)
+#define PIX_FMT_YUV420P16 PIX_FMT_NE(YUV420P16BE, YUV420P16LE)
+#define PIX_FMT_YUV422P16 PIX_FMT_NE(YUV422P16BE, YUV422P16LE)
+#define PIX_FMT_YUV444P16 PIX_FMT_NE(YUV444P16BE, YUV444P16LE)
+
+#endif /* AVUTIL_PIXFMT_H */
--- /dev/null
+/*
+ * Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_RANDOM_SEED_H
+#define AVUTIL_RANDOM_SEED_H
+
+#include <stdint.h>
+
+/**
+ * Get a seed to use in conjunction with random functions.
+ */
+uint32_t av_get_random_seed(void);
+
+#endif /* AVUTIL_RANDOM_SEED_H */
--- /dev/null
+/*
+ * rational numbers
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * rational numbers
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#ifndef AVUTIL_RATIONAL_H
+#define AVUTIL_RATIONAL_H
+
+#include <stdint.h>
+#include <limits.h>
+#include "attributes.h"
+
+/**
+ * rational number numerator/denominator
+ */
+typedef struct AVRational{
+ int num; ///< numerator
+ int den; ///< denominator
+} AVRational;
+
+/**
+ * Compare two rationals.
+ * @param a first rational
+ * @param b second rational
+ * @return 0 if a==b, 1 if a>b, -1 if a<b, and INT_MIN if one of the
+ * values is of the form 0/0
+ */
+static inline int av_cmp_q(AVRational a, AVRational b){
+ const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den;
+
+ if(tmp) return ((tmp ^ a.den ^ b.den)>>63)|1;
+ else if(b.den && a.den) return 0;
+ else if(a.num && b.num) return (a.num>>31) - (b.num>>31);
+ else return INT_MIN;
+}
+
+/**
+ * Convert rational to double.
+ * @param a rational to convert
+ * @return (double) a
+ */
+static inline double av_q2d(AVRational a){
+ return a.num / (double) a.den;
+}
+
+/**
+ * Reduce a fraction.
+ * This is useful for framerate calculations.
+ * @param dst_num destination numerator
+ * @param dst_den destination denominator
+ * @param num source numerator
+ * @param den source denominator
+ * @param max the maximum allowed for dst_num & dst_den
+ * @return 1 if exact, 0 otherwise
+ */
+int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max);
+
+/**
+ * Multiply two rationals.
+ * @param b first rational
+ * @param c second rational
+ * @return b*c
+ */
+AVRational av_mul_q(AVRational b, AVRational c) av_const;
+
+/**
+ * Divide one rational by another.
+ * @param b first rational
+ * @param c second rational
+ * @return b/c
+ */
+AVRational av_div_q(AVRational b, AVRational c) av_const;
+
+/**
+ * Add two rationals.
+ * @param b first rational
+ * @param c second rational
+ * @return b+c
+ */
+AVRational av_add_q(AVRational b, AVRational c) av_const;
+
+/**
+ * Subtract one rational from another.
+ * @param b first rational
+ * @param c second rational
+ * @return b-c
+ */
+AVRational av_sub_q(AVRational b, AVRational c) av_const;
+
+/**
+ * Convert a double precision floating point number to a rational.
+ * inf is expressed as {1,0} or {-1,0} depending on the sign.
+ *
+ * @param d double to convert
+ * @param max the maximum allowed numerator and denominator
+ * @return (AVRational) d
+ */
+AVRational av_d2q(double d, int max) av_const;
+
+/**
+ * @return 1 if q1 is nearer to q than q2, -1 if q2 is nearer
+ * than q1, 0 if they have the same distance.
+ */
+int av_nearer_q(AVRational q, AVRational q1, AVRational q2);
+
+/**
+ * Find the nearest value in q_list to q.
+ * @param q_list an array of rationals terminated by {0, 0}
+ * @return the index of the nearest value found in the array
+ */
+int av_find_nearest_q_idx(AVRational q, const AVRational* q_list);
+
+#endif /* AVUTIL_RATIONAL_H */
--- /dev/null
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_SAMPLEFMT_H
+#define AVUTIL_SAMPLEFMT_H
+
+#include "avutil.h"
+
+/**
+ * all in native-endian format
+ */
+enum AVSampleFormat {
+ AV_SAMPLE_FMT_NONE = -1,
+ AV_SAMPLE_FMT_U8, ///< unsigned 8 bits
+ AV_SAMPLE_FMT_S16, ///< signed 16 bits
+ AV_SAMPLE_FMT_S32, ///< signed 32 bits
+ AV_SAMPLE_FMT_FLT, ///< float
+ AV_SAMPLE_FMT_DBL, ///< double
+ AV_SAMPLE_FMT_NB ///< Number of sample formats. DO NOT USE if linking dynamically
+};
+
+/**
+ * Return the name of sample_fmt, or NULL if sample_fmt is not
+ * recognized.
+ */
+const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
+
+/**
+ * Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE
+ * on error.
+ */
+enum AVSampleFormat av_get_sample_fmt(const char *name);
+
+/**
+ * Generate a string corresponding to the sample format with
+ * sample_fmt, or a header if sample_fmt is negative.
+ *
+ * @param buf the buffer where to write the string
+ * @param buf_size the size of buf
+ * @param sample_fmt the number of the sample format to print the
+ * corresponding info string, or a negative value to print the
+ * corresponding header.
+ * @return the pointer to the filled buffer or NULL if sample_fmt is
+ * unknown or in case of other errors
+ */
+char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
+
+#if FF_API_GET_BITS_PER_SAMPLE_FMT
+/**
+ * @deprecated Use av_get_bytes_per_sample() instead.
+ */
+attribute_deprecated
+int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt);
+#endif
+
+/**
+ * Return number of bytes per sample.
+ *
+ * @param sample_fmt the sample format
+ * @return number of bytes per sample or zero if unknown for the given
+ * sample format
+ */
+int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt);
+
+#endif /* AVUTIL_SAMPLEFMT_H */
--- /dev/null
+/*
+ * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_SHA_H
+#define AVUTIL_SHA_H
+
+#include <stdint.h>
+
+extern const int av_sha_size;
+
+struct AVSHA;
+
+/**
+ * Initialize SHA-1 or SHA-2 hashing.
+ *
+ * @param context pointer to the function context (of size av_sha_size)
+ * @param bits number of bits in digest (SHA-1 - 160 bits, SHA-2 224 or 256 bits)
+ * @return zero if initialization succeeded, -1 otherwise
+ */
+int av_sha_init(struct AVSHA* context, int bits);
+
+/**
+ * Update hash value.
+ *
+ * @param context hash function context
+ * @param data input data to update hash with
+ * @param len input data length
+ */
+void av_sha_update(struct AVSHA* context, const uint8_t* data, unsigned int len);
+
+/**
+ * Finish hashing and output digest value.
+ *
+ * @param context hash function context
+ * @param digest buffer where output digest value is stored
+ */
+void av_sha_final(struct AVSHA* context, uint8_t *digest);
+
+#endif /* AVUTIL_SHA_H */
--- /dev/null
+prefix=./i386
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libavcodec
+Description: Libav codec library
+Version: 53.5.0
+Requires: libavutil = 51.7.0
+Requires.private:
+Conflicts:
+Libs: -L${libdir} -lavcodec -lm -pthread -lbz2 -lz
+Libs.private:
+Cflags: -I${includedir}
--- /dev/null
+prefix=./i386
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libavdevice
+Description: Libav device handling library
+Version: 53.0.0
+Requires: libavformat = 53.2.0
+Requires.private:
+Conflicts:
+Libs: -L${libdir} -lavdevice -lm -pthread -lbz2 -lz
+Libs.private:
+Cflags: -I${includedir}
--- /dev/null
+prefix=./i386
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libavfilter
+Description: Libav video filtering library
+Version: 2.4.0
+Requires:
+Requires.private:
+Conflicts:
+Libs: -L${libdir} -lavfilter -lm -pthread -lbz2 -lz
+Libs.private:
+Cflags: -I${includedir}
--- /dev/null
+prefix=./i386
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libavformat
+Description: Libav container format library
+Version: 53.2.0
+Requires: libavcodec = 53.5.0
+Requires.private:
+Conflicts:
+Libs: -L${libdir} -lavformat -lm -pthread -lbz2 -lz
+Libs.private:
+Cflags: -I${includedir}
--- /dev/null
+prefix=./i386
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libavutil
+Description: Libav utility library
+Version: 51.7.0
+Requires:
+Requires.private:
+Conflicts:
+Libs: -L${libdir} -lavutil -lm
+Libs.private:
+Cflags: -I${includedir}
+++ /dev/null
-/*
- * copyright (c) 2001 Fabrice Bellard
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_AVCODEC_H
-#define AVCODEC_AVCODEC_H
-
-/**
- * @file
- * external API header
- */
-
-#include <errno.h>
-#include "libavutil/samplefmt.h"
-#include "libavutil/avutil.h"
-#include "libavutil/cpu.h"
-
-#include "libavcodec/version.h"
-
-/**
- * Identify the syntax and semantics of the bitstream.
- * The principle is roughly:
- * Two decoders with the same ID can decode the same streams.
- * Two encoders with the same ID can encode compatible streams.
- * There may be slight deviations from the principle due to implementation
- * details.
- *
- * If you add a codec ID to this list, add it so that
- * 1. no value of a existing codec ID changes (that would break ABI),
- * 2. it is as close as possible to similar codecs.
- */
-enum CodecID {
- CODEC_ID_NONE,
-
- /* video codecs */
- CODEC_ID_MPEG1VIDEO,
- CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
- CODEC_ID_MPEG2VIDEO_XVMC,
- CODEC_ID_H261,
- CODEC_ID_H263,
- CODEC_ID_RV10,
- CODEC_ID_RV20,
- CODEC_ID_MJPEG,
- CODEC_ID_MJPEGB,
- CODEC_ID_LJPEG,
- CODEC_ID_SP5X,
- CODEC_ID_JPEGLS,
- CODEC_ID_MPEG4,
- CODEC_ID_RAWVIDEO,
- CODEC_ID_MSMPEG4V1,
- CODEC_ID_MSMPEG4V2,
- CODEC_ID_MSMPEG4V3,
- CODEC_ID_WMV1,
- CODEC_ID_WMV2,
- CODEC_ID_H263P,
- CODEC_ID_H263I,
- CODEC_ID_FLV1,
- CODEC_ID_SVQ1,
- CODEC_ID_SVQ3,
- CODEC_ID_DVVIDEO,
- CODEC_ID_HUFFYUV,
- CODEC_ID_CYUV,
- CODEC_ID_H264,
- CODEC_ID_INDEO3,
- CODEC_ID_VP3,
- CODEC_ID_THEORA,
- CODEC_ID_ASV1,
- CODEC_ID_ASV2,
- CODEC_ID_FFV1,
- CODEC_ID_4XM,
- CODEC_ID_VCR1,
- CODEC_ID_CLJR,
- CODEC_ID_MDEC,
- CODEC_ID_ROQ,
- CODEC_ID_INTERPLAY_VIDEO,
- CODEC_ID_XAN_WC3,
- CODEC_ID_XAN_WC4,
- CODEC_ID_RPZA,
- CODEC_ID_CINEPAK,
- CODEC_ID_WS_VQA,
- CODEC_ID_MSRLE,
- CODEC_ID_MSVIDEO1,
- CODEC_ID_IDCIN,
- CODEC_ID_8BPS,
- CODEC_ID_SMC,
- CODEC_ID_FLIC,
- CODEC_ID_TRUEMOTION1,
- CODEC_ID_VMDVIDEO,
- CODEC_ID_MSZH,
- CODEC_ID_ZLIB,
- CODEC_ID_QTRLE,
- CODEC_ID_SNOW,
- CODEC_ID_TSCC,
- CODEC_ID_ULTI,
- CODEC_ID_QDRAW,
- CODEC_ID_VIXL,
- CODEC_ID_QPEG,
- CODEC_ID_PNG,
- CODEC_ID_PPM,
- CODEC_ID_PBM,
- CODEC_ID_PGM,
- CODEC_ID_PGMYUV,
- CODEC_ID_PAM,
- CODEC_ID_FFVHUFF,
- CODEC_ID_RV30,
- CODEC_ID_RV40,
- CODEC_ID_VC1,
- CODEC_ID_WMV3,
- CODEC_ID_LOCO,
- CODEC_ID_WNV1,
- CODEC_ID_AASC,
- CODEC_ID_INDEO2,
- CODEC_ID_FRAPS,
- CODEC_ID_TRUEMOTION2,
- CODEC_ID_BMP,
- CODEC_ID_CSCD,
- CODEC_ID_MMVIDEO,
- CODEC_ID_ZMBV,
- CODEC_ID_AVS,
- CODEC_ID_SMACKVIDEO,
- CODEC_ID_NUV,
- CODEC_ID_KMVC,
- CODEC_ID_FLASHSV,
- CODEC_ID_CAVS,
- CODEC_ID_JPEG2000,
- CODEC_ID_VMNC,
- CODEC_ID_VP5,
- CODEC_ID_VP6,
- CODEC_ID_VP6F,
- CODEC_ID_TARGA,
- CODEC_ID_DSICINVIDEO,
- CODEC_ID_TIERTEXSEQVIDEO,
- CODEC_ID_TIFF,
- CODEC_ID_GIF,
- CODEC_ID_FFH264,
- CODEC_ID_DXA,
- CODEC_ID_DNXHD,
- CODEC_ID_THP,
- CODEC_ID_SGI,
- CODEC_ID_C93,
- CODEC_ID_BETHSOFTVID,
- CODEC_ID_PTX,
- CODEC_ID_TXD,
- CODEC_ID_VP6A,
- CODEC_ID_AMV,
- CODEC_ID_VB,
- CODEC_ID_PCX,
- CODEC_ID_SUNRAST,
- CODEC_ID_INDEO4,
- CODEC_ID_INDEO5,
- CODEC_ID_MIMIC,
- CODEC_ID_RL2,
- CODEC_ID_8SVX_EXP,
- CODEC_ID_8SVX_FIB,
- CODEC_ID_ESCAPE124,
- CODEC_ID_DIRAC,
- CODEC_ID_BFI,
- CODEC_ID_CMV,
- CODEC_ID_MOTIONPIXELS,
- CODEC_ID_TGV,
- CODEC_ID_TGQ,
- CODEC_ID_TQI,
- CODEC_ID_AURA,
- CODEC_ID_AURA2,
- CODEC_ID_V210X,
- CODEC_ID_TMV,
- CODEC_ID_V210,
- CODEC_ID_DPX,
- CODEC_ID_MAD,
- CODEC_ID_FRWU,
- CODEC_ID_FLASHSV2,
- CODEC_ID_CDGRAPHICS,
- CODEC_ID_R210,
- CODEC_ID_ANM,
- CODEC_ID_BINKVIDEO,
- CODEC_ID_IFF_ILBM,
- CODEC_ID_IFF_BYTERUN1,
- CODEC_ID_KGV1,
- CODEC_ID_YOP,
- CODEC_ID_VP8,
- CODEC_ID_PICTOR,
- CODEC_ID_ANSI,
- CODEC_ID_A64_MULTI,
- CODEC_ID_A64_MULTI5,
- CODEC_ID_R10K,
- CODEC_ID_MXPEG,
- CODEC_ID_LAGARITH,
- CODEC_ID_PRORES,
- CODEC_ID_JV,
- CODEC_ID_DFA,
-
- /* various PCM "codecs" */
- CODEC_ID_PCM_S16LE= 0x10000,
- CODEC_ID_PCM_S16BE,
- CODEC_ID_PCM_U16LE,
- CODEC_ID_PCM_U16BE,
- CODEC_ID_PCM_S8,
- CODEC_ID_PCM_U8,
- CODEC_ID_PCM_MULAW,
- CODEC_ID_PCM_ALAW,
- CODEC_ID_PCM_S32LE,
- CODEC_ID_PCM_S32BE,
- CODEC_ID_PCM_U32LE,
- CODEC_ID_PCM_U32BE,
- CODEC_ID_PCM_S24LE,
- CODEC_ID_PCM_S24BE,
- CODEC_ID_PCM_U24LE,
- CODEC_ID_PCM_U24BE,
- CODEC_ID_PCM_S24DAUD,
- CODEC_ID_PCM_ZORK,
- CODEC_ID_PCM_S16LE_PLANAR,
- CODEC_ID_PCM_DVD,
- CODEC_ID_PCM_F32BE,
- CODEC_ID_PCM_F32LE,
- CODEC_ID_PCM_F64BE,
- CODEC_ID_PCM_F64LE,
- CODEC_ID_PCM_BLURAY,
- CODEC_ID_PCM_LXF,
- CODEC_ID_S302M,
-
- /* various ADPCM codecs */
- CODEC_ID_ADPCM_IMA_QT= 0x11000,
- CODEC_ID_ADPCM_IMA_WAV,
- CODEC_ID_ADPCM_IMA_DK3,
- CODEC_ID_ADPCM_IMA_DK4,
- CODEC_ID_ADPCM_IMA_WS,
- CODEC_ID_ADPCM_IMA_SMJPEG,
- CODEC_ID_ADPCM_MS,
- CODEC_ID_ADPCM_4XM,
- CODEC_ID_ADPCM_XA,
- CODEC_ID_ADPCM_ADX,
- CODEC_ID_ADPCM_EA,
- CODEC_ID_ADPCM_G726,
- CODEC_ID_ADPCM_CT,
- CODEC_ID_ADPCM_SWF,
- CODEC_ID_ADPCM_YAMAHA,
- CODEC_ID_ADPCM_SBPRO_4,
- CODEC_ID_ADPCM_SBPRO_3,
- CODEC_ID_ADPCM_SBPRO_2,
- CODEC_ID_ADPCM_THP,
- CODEC_ID_ADPCM_IMA_AMV,
- CODEC_ID_ADPCM_EA_R1,
- CODEC_ID_ADPCM_EA_R3,
- CODEC_ID_ADPCM_EA_R2,
- CODEC_ID_ADPCM_IMA_EA_SEAD,
- CODEC_ID_ADPCM_IMA_EA_EACS,
- CODEC_ID_ADPCM_EA_XAS,
- CODEC_ID_ADPCM_EA_MAXIS_XA,
- CODEC_ID_ADPCM_IMA_ISS,
- CODEC_ID_ADPCM_G722,
-
- /* AMR */
- CODEC_ID_AMR_NB= 0x12000,
- CODEC_ID_AMR_WB,
-
- /* RealAudio codecs*/
- CODEC_ID_RA_144= 0x13000,
- CODEC_ID_RA_288,
-
- /* various DPCM codecs */
- CODEC_ID_ROQ_DPCM= 0x14000,
- CODEC_ID_INTERPLAY_DPCM,
- CODEC_ID_XAN_DPCM,
- CODEC_ID_SOL_DPCM,
-
- /* audio codecs */
- CODEC_ID_MP2= 0x15000,
- CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
- CODEC_ID_AAC,
- CODEC_ID_AC3,
- CODEC_ID_DTS,
- CODEC_ID_VORBIS,
- CODEC_ID_DVAUDIO,
- CODEC_ID_WMAV1,
- CODEC_ID_WMAV2,
- CODEC_ID_MACE3,
- CODEC_ID_MACE6,
- CODEC_ID_VMDAUDIO,
- CODEC_ID_SONIC,
- CODEC_ID_SONIC_LS,
- CODEC_ID_FLAC,
- CODEC_ID_MP3ADU,
- CODEC_ID_MP3ON4,
- CODEC_ID_SHORTEN,
- CODEC_ID_ALAC,
- CODEC_ID_WESTWOOD_SND1,
- CODEC_ID_GSM, ///< as in Berlin toast format
- CODEC_ID_QDM2,
- CODEC_ID_COOK,
- CODEC_ID_TRUESPEECH,
- CODEC_ID_TTA,
- CODEC_ID_SMACKAUDIO,
- CODEC_ID_QCELP,
- CODEC_ID_WAVPACK,
- CODEC_ID_DSICINAUDIO,
- CODEC_ID_IMC,
- CODEC_ID_MUSEPACK7,
- CODEC_ID_MLP,
- CODEC_ID_GSM_MS, /* as found in WAV */
- CODEC_ID_ATRAC3,
- CODEC_ID_VOXWARE,
- CODEC_ID_APE,
- CODEC_ID_NELLYMOSER,
- CODEC_ID_MUSEPACK8,
- CODEC_ID_SPEEX,
- CODEC_ID_WMAVOICE,
- CODEC_ID_WMAPRO,
- CODEC_ID_WMALOSSLESS,
- CODEC_ID_ATRAC3P,
- CODEC_ID_EAC3,
- CODEC_ID_SIPR,
- CODEC_ID_MP1,
- CODEC_ID_TWINVQ,
- CODEC_ID_TRUEHD,
- CODEC_ID_MP4ALS,
- CODEC_ID_ATRAC1,
- CODEC_ID_BINKAUDIO_RDFT,
- CODEC_ID_BINKAUDIO_DCT,
- CODEC_ID_AAC_LATM,
- CODEC_ID_QDMC,
-
- /* subtitle codecs */
- CODEC_ID_DVD_SUBTITLE= 0x17000,
- CODEC_ID_DVB_SUBTITLE,
- CODEC_ID_TEXT, ///< raw UTF-8 text
- CODEC_ID_XSUB,
- CODEC_ID_SSA,
- CODEC_ID_MOV_TEXT,
- CODEC_ID_HDMV_PGS_SUBTITLE,
- CODEC_ID_DVB_TELETEXT,
- CODEC_ID_SRT,
-
- /* other specific kind of codecs (generally used for attachments) */
- CODEC_ID_TTF= 0x18000,
-
- CODEC_ID_PROBE= 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
-
- CODEC_ID_MPEG2TS= 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
- * stream (only used by libavformat) */
- CODEC_ID_FFMETADATA=0x21000, ///< Dummy codec for streams containing only metadata information.
-};
-
-#if FF_API_OLD_SAMPLE_FMT
-#define SampleFormat AVSampleFormat
-
-#define SAMPLE_FMT_NONE AV_SAMPLE_FMT_NONE
-#define SAMPLE_FMT_U8 AV_SAMPLE_FMT_U8
-#define SAMPLE_FMT_S16 AV_SAMPLE_FMT_S16
-#define SAMPLE_FMT_S32 AV_SAMPLE_FMT_S32
-#define SAMPLE_FMT_FLT AV_SAMPLE_FMT_FLT
-#define SAMPLE_FMT_DBL AV_SAMPLE_FMT_DBL
-#define SAMPLE_FMT_NB AV_SAMPLE_FMT_NB
-#endif
-
-#if FF_API_OLD_AUDIOCONVERT
-#include "libavutil/audioconvert.h"
-
-/* Audio channel masks */
-#define CH_FRONT_LEFT AV_CH_FRONT_LEFT
-#define CH_FRONT_RIGHT AV_CH_FRONT_RIGHT
-#define CH_FRONT_CENTER AV_CH_FRONT_CENTER
-#define CH_LOW_FREQUENCY AV_CH_LOW_FREQUENCY
-#define CH_BACK_LEFT AV_CH_BACK_LEFT
-#define CH_BACK_RIGHT AV_CH_BACK_RIGHT
-#define CH_FRONT_LEFT_OF_CENTER AV_CH_FRONT_LEFT_OF_CENTER
-#define CH_FRONT_RIGHT_OF_CENTER AV_CH_FRONT_RIGHT_OF_CENTER
-#define CH_BACK_CENTER AV_CH_BACK_CENTER
-#define CH_SIDE_LEFT AV_CH_SIDE_LEFT
-#define CH_SIDE_RIGHT AV_CH_SIDE_RIGHT
-#define CH_TOP_CENTER AV_CH_TOP_CENTER
-#define CH_TOP_FRONT_LEFT AV_CH_TOP_FRONT_LEFT
-#define CH_TOP_FRONT_CENTER AV_CH_TOP_FRONT_CENTER
-#define CH_TOP_FRONT_RIGHT AV_CH_TOP_FRONT_RIGHT
-#define CH_TOP_BACK_LEFT AV_CH_TOP_BACK_LEFT
-#define CH_TOP_BACK_CENTER AV_CH_TOP_BACK_CENTER
-#define CH_TOP_BACK_RIGHT AV_CH_TOP_BACK_RIGHT
-#define CH_STEREO_LEFT AV_CH_STEREO_LEFT
-#define CH_STEREO_RIGHT AV_CH_STEREO_RIGHT
-
-/** Channel mask value used for AVCodecContext.request_channel_layout
- to indicate that the user requests the channel order of the decoder output
- to be the native codec channel order. */
-#define CH_LAYOUT_NATIVE AV_CH_LAYOUT_NATIVE
-
-/* Audio channel convenience macros */
-#define CH_LAYOUT_MONO AV_CH_LAYOUT_MONO
-#define CH_LAYOUT_STEREO AV_CH_LAYOUT_STEREO
-#define CH_LAYOUT_2_1 AV_CH_LAYOUT_2_1
-#define CH_LAYOUT_SURROUND AV_CH_LAYOUT_SURROUND
-#define CH_LAYOUT_4POINT0 AV_CH_LAYOUT_4POINT0
-#define CH_LAYOUT_2_2 AV_CH_LAYOUT_2_2
-#define CH_LAYOUT_QUAD AV_CH_LAYOUT_QUAD
-#define CH_LAYOUT_5POINT0 AV_CH_LAYOUT_5POINT0
-#define CH_LAYOUT_5POINT1 AV_CH_LAYOUT_5POINT1
-#define CH_LAYOUT_5POINT0_BACK AV_CH_LAYOUT_5POINT0_BACK
-#define CH_LAYOUT_5POINT1_BACK AV_CH_LAYOUT_5POINT1_BACK
-#define CH_LAYOUT_7POINT0 AV_CH_LAYOUT_7POINT0
-#define CH_LAYOUT_7POINT1 AV_CH_LAYOUT_7POINT1
-#define CH_LAYOUT_7POINT1_WIDE AV_CH_LAYOUT_7POINT1_WIDE
-#define CH_LAYOUT_STEREO_DOWNMIX AV_CH_LAYOUT_STEREO_DOWNMIX
-#endif
-
-/* in bytes */
-#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
-
-/**
- * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
- * This is mainly needed because some optimized bitstream readers read
- * 32 or 64 bit at once and could read over the end.<br>
- * Note: If the first 23 bits of the additional bytes are not 0, then damaged
- * MPEG bitstreams could cause overread and segfault.
- */
-#define FF_INPUT_BUFFER_PADDING_SIZE 8
-
-/**
- * minimum encoding buffer size
- * Used to avoid some checks during header writing.
- */
-#define FF_MIN_BUFFER_SIZE 16384
-
-
-/**
- * motion estimation type.
- */
-enum Motion_Est_ID {
- ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed
- ME_FULL,
- ME_LOG,
- ME_PHODS,
- ME_EPZS, ///< enhanced predictive zonal search
- ME_X1, ///< reserved for experiments
- ME_HEX, ///< hexagon based search
- ME_UMH, ///< uneven multi-hexagon search
- ME_ITER, ///< iterative search
- ME_TESA, ///< transformed exhaustive search algorithm
-};
-
-enum AVDiscard{
- /* We leave some space between them for extensions (drop some
- * keyframes for intra-only or drop just some bidir frames). */
- AVDISCARD_NONE =-16, ///< discard nothing
- AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi
- AVDISCARD_NONREF = 8, ///< discard all non reference
- AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
- AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
- AVDISCARD_ALL = 48, ///< discard all
-};
-
-enum AVColorPrimaries{
- AVCOL_PRI_BT709 =1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
- AVCOL_PRI_UNSPECIFIED=2,
- AVCOL_PRI_BT470M =4,
- AVCOL_PRI_BT470BG =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
- AVCOL_PRI_SMPTE170M =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
- AVCOL_PRI_SMPTE240M =7, ///< functionally identical to above
- AVCOL_PRI_FILM =8,
- AVCOL_PRI_NB , ///< Not part of ABI
-};
-
-enum AVColorTransferCharacteristic{
- AVCOL_TRC_BT709 =1, ///< also ITU-R BT1361
- AVCOL_TRC_UNSPECIFIED=2,
- AVCOL_TRC_GAMMA22 =4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
- AVCOL_TRC_GAMMA28 =5, ///< also ITU-R BT470BG
- AVCOL_TRC_NB , ///< Not part of ABI
-};
-
-enum AVColorSpace{
- AVCOL_SPC_RGB =0,
- AVCOL_SPC_BT709 =1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
- AVCOL_SPC_UNSPECIFIED=2,
- AVCOL_SPC_FCC =4,
- AVCOL_SPC_BT470BG =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
- AVCOL_SPC_SMPTE170M =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
- AVCOL_SPC_SMPTE240M =7,
- AVCOL_SPC_NB , ///< Not part of ABI
-};
-
-enum AVColorRange{
- AVCOL_RANGE_UNSPECIFIED=0,
- AVCOL_RANGE_MPEG =1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges
- AVCOL_RANGE_JPEG =2, ///< the normal 2^n-1 "JPEG" YUV ranges
- AVCOL_RANGE_NB , ///< Not part of ABI
-};
-
-/**
- * X X 3 4 X X are luma samples,
- * 1 2 1-6 are possible chroma positions
- * X X 5 6 X 0 is undefined/unknown position
- */
-enum AVChromaLocation{
- AVCHROMA_LOC_UNSPECIFIED=0,
- AVCHROMA_LOC_LEFT =1, ///< mpeg2/4, h264 default
- AVCHROMA_LOC_CENTER =2, ///< mpeg1, jpeg, h263
- AVCHROMA_LOC_TOPLEFT =3, ///< DV
- AVCHROMA_LOC_TOP =4,
- AVCHROMA_LOC_BOTTOMLEFT =5,
- AVCHROMA_LOC_BOTTOM =6,
- AVCHROMA_LOC_NB , ///< Not part of ABI
-};
-
-#if FF_API_FLAC_GLOBAL_OPTS
-/**
- * LPC analysis type
- */
-attribute_deprecated enum AVLPCType {
- AV_LPC_TYPE_DEFAULT = -1, ///< use the codec default LPC type
- AV_LPC_TYPE_NONE = 0, ///< do not use LPC prediction or use all zero coefficients
- AV_LPC_TYPE_FIXED = 1, ///< fixed LPC coefficients
- AV_LPC_TYPE_LEVINSON = 2, ///< Levinson-Durbin recursion
- AV_LPC_TYPE_CHOLESKY = 3, ///< Cholesky factorization
- AV_LPC_TYPE_NB , ///< Not part of ABI
-};
-#endif
-
-enum AVAudioServiceType {
- AV_AUDIO_SERVICE_TYPE_MAIN = 0,
- AV_AUDIO_SERVICE_TYPE_EFFECTS = 1,
- AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
- AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3,
- AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4,
- AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5,
- AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6,
- AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7,
- AV_AUDIO_SERVICE_TYPE_KARAOKE = 8,
- AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI
-};
-
-typedef struct RcOverride{
- int start_frame;
- int end_frame;
- int qscale; // If this is 0 then quality_factor will be used instead.
- float quality_factor;
-} RcOverride;
-
-#define FF_MAX_B_FRAMES 16
-
-/* encoding support
- These flags can be passed in AVCodecContext.flags before initialization.
- Note: Not everything is supported yet.
-*/
-
-#define CODEC_FLAG_QSCALE 0x0002 ///< Use fixed qscale.
-#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / advanced prediction for H.263.
-#define CODEC_FLAG_QPEL 0x0010 ///< Use qpel MC.
-#define CODEC_FLAG_GMC 0x0020 ///< Use GMC.
-#define CODEC_FLAG_MV0 0x0040 ///< Always try a MB with MV=<0,0>.
-#define CODEC_FLAG_PART 0x0080 ///< Use data partitioning.
-/**
- * The parent program guarantees that the input for B-frames containing
- * streams is not written to for at least s->max_b_frames+1 frames, if
- * this is not set the input will be copied.
- */
-#define CODEC_FLAG_INPUT_PRESERVED 0x0100
-#define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode.
-#define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode.
-#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< Use external Huffman table (for MJPEG).
-#define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale.
-#define CODEC_FLAG_EMU_EDGE 0x4000 ///< Don't draw edges.
-#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding.
-#define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random
- location instead of only at frame boundaries. */
-#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< Normalize adaptive quantization.
-#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT.
-#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< Force low delay.
-#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< Use alternate scan.
-#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< Place global headers in extradata instead of every keyframe.
-#define CODEC_FLAG_BITEXACT 0x00800000 ///< Use only bitexact stuff (except (I)DCT).
-/* Fx : Flag for h263+ extra options */
-#define CODEC_FLAG_AC_PRED 0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction
-#define CODEC_FLAG_H263P_UMV 0x02000000 ///< unlimited motion vector
-#define CODEC_FLAG_CBP_RD 0x04000000 ///< Use rate distortion optimization for cbp.
-#define CODEC_FLAG_QP_RD 0x08000000 ///< Use rate distortion optimization for qp selectioon.
-#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H.263 alternative inter VLC
-#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
-#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
-#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
-#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
-#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< Will reserve space for SVCD scan offset user data.
-#define CODEC_FLAG_CLOSED_GOP 0x80000000
-#define CODEC_FLAG2_FAST 0x00000001 ///< Allow non spec compliant speedup tricks.
-#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< Strictly enforce GOP size.
-#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< Skip bitstream encoding.
-#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< Place global headers at every keyframe instead of in extradata.
-#define CODEC_FLAG2_BPYRAMID 0x00000010 ///< H.264 allow B-frames to be used as references.
-#define CODEC_FLAG2_WPRED 0x00000020 ///< H.264 weighted biprediction for B-frames
-#define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock
-#define CODEC_FLAG2_8X8DCT 0x00000080 ///< H.264 high profile 8x8 transform
-#define CODEC_FLAG2_FASTPSKIP 0x00000100 ///< H.264 fast pskip
-#define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters
-#define CODEC_FLAG2_BRDO 0x00000400 ///< B-frame rate-distortion optimization
-#define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< Use MPEG-2 intra VLC table.
-#define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< Only do ME/MC (I frames -> ref, P frame -> ME+MC).
-#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format.
-#define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skipping
-#define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
-#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< Use MPEG-2 nonlinear quantizer.
-#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 ///< Use a bit reservoir when encoding if possible
-#define CODEC_FLAG2_MBTREE 0x00040000 ///< Use macroblock tree ratecontrol (x264 only)
-#define CODEC_FLAG2_PSY 0x00080000 ///< Use psycho visual optimizations.
-#define CODEC_FLAG2_SSIM 0x00100000 ///< Compute SSIM during encoding, error[] values are undefined.
-#define CODEC_FLAG2_INTRA_REFRESH 0x00200000 ///< Use periodic insertion of intra blocks instead of keyframes.
-
-/* Unsupported options :
- * Syntax Arithmetic coding (SAC)
- * Reference Picture Selection
- * Independent Segment Decoding */
-/* /Fx */
-/* codec capabilities */
-
-#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback.
-/**
- * Codec uses get_buffer() for allocating buffers and supports custom allocators.
- * If not set, it might not use get_buffer() at all or use operations that
- * assume the buffer was allocated by avcodec_default_get_buffer.
- */
-#define CODEC_CAP_DR1 0x0002
-/* If 'parse_only' field is true, then avcodec_parse_frame() can be used. */
-#define CODEC_CAP_PARSE_ONLY 0x0004
-#define CODEC_CAP_TRUNCATED 0x0008
-/* Codec can export data for HW decoding (XvMC). */
-#define CODEC_CAP_HWACCEL 0x0010
-/**
- * Codec has a nonzero delay and needs to be fed with NULL at the end to get the delayed data.
- * If this is not set, the codec is guaranteed to never be fed with NULL data.
- */
-#define CODEC_CAP_DELAY 0x0020
-/**
- * Codec can be fed a final frame with a smaller size.
- * This can be used to prevent truncation of the last audio samples.
- */
-#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
-/**
- * Codec can export data for HW decoding (VDPAU).
- */
-#define CODEC_CAP_HWACCEL_VDPAU 0x0080
-/**
- * Codec can output multiple frames per AVPacket
- * Normally demuxers return one frame at a time, demuxers which do not do
- * are connected to a parser to split what they return into proper frames.
- * This flag is reserved to the very rare category of codecs which have a
- * bitstream that cannot be split into frames without timeconsuming
- * operations like full decoding. Demuxers carring such bitstreams thus
- * may return multiple frames in a packet. This has many disadvantages like
- * prohibiting stream copy in many cases thus it should only be considered
- * as a last resort.
- */
-#define CODEC_CAP_SUBFRAMES 0x0100
-/**
- * Codec is experimental and is thus avoided in favor of non experimental
- * encoders
- */
-#define CODEC_CAP_EXPERIMENTAL 0x0200
-/**
- * Codec should fill in channel configuration and samplerate instead of container
- */
-#define CODEC_CAP_CHANNEL_CONF 0x0400
-/**
- * Codec is able to deal with negative linesizes
- */
-#define CODEC_CAP_NEG_LINESIZES 0x0800
-/**
- * Codec supports frame-level multithreading.
- */
-#define CODEC_CAP_FRAME_THREADS 0x1000
-/**
- * Codec supports slice-based (or partition-based) multithreading.
- */
-#define CODEC_CAP_SLICE_THREADS 0x2000
-
-//The following defines may change, don't expect compatibility if you use them.
-#define MB_TYPE_INTRA4x4 0x0001
-#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
-#define MB_TYPE_INTRA_PCM 0x0004 //FIXME H.264-specific
-#define MB_TYPE_16x16 0x0008
-#define MB_TYPE_16x8 0x0010
-#define MB_TYPE_8x16 0x0020
-#define MB_TYPE_8x8 0x0040
-#define MB_TYPE_INTERLACED 0x0080
-#define MB_TYPE_DIRECT2 0x0100 //FIXME
-#define MB_TYPE_ACPRED 0x0200
-#define MB_TYPE_GMC 0x0400
-#define MB_TYPE_SKIP 0x0800
-#define MB_TYPE_P0L0 0x1000
-#define MB_TYPE_P1L0 0x2000
-#define MB_TYPE_P0L1 0x4000
-#define MB_TYPE_P1L1 0x8000
-#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
-#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
-#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
-#define MB_TYPE_QUANT 0x00010000
-#define MB_TYPE_CBP 0x00020000
-//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
-
-/**
- * Pan Scan area.
- * This specifies the area which should be displayed.
- * Note there may be multiple such areas for one frame.
- */
-typedef struct AVPanScan{
- /**
- * id
- * - encoding: Set by user.
- * - decoding: Set by libavcodec.
- */
- int id;
-
- /**
- * width and height in 1/16 pel
- * - encoding: Set by user.
- * - decoding: Set by libavcodec.
- */
- int width;
- int height;
-
- /**
- * position of the top left corner in 1/16 pel for up to 3 fields/frames
- * - encoding: Set by user.
- * - decoding: Set by libavcodec.
- */
- int16_t position[3][2];
-}AVPanScan;
-
-#define FF_COMMON_FRAME \
- /**\
- * pointer to the picture planes.\
- * This might be different from the first allocated byte\
- * - encoding: \
- * - decoding: \
- */\
- uint8_t *data[4];\
- int linesize[4];\
- /**\
- * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer.\
- * This isn't used by libavcodec unless the default get/release_buffer() is used.\
- * - encoding: \
- * - decoding: \
- */\
- uint8_t *base[4];\
- /**\
- * 1 -> keyframe, 0-> not\
- * - encoding: Set by libavcodec.\
- * - decoding: Set by libavcodec.\
- */\
- int key_frame;\
-\
- /**\
- * Picture type of the frame, see ?_TYPE below.\
- * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\
- * - decoding: Set by libavcodec.\
- */\
- enum AVPictureType pict_type;\
-\
- /**\
- * presentation timestamp in time_base units (time when frame should be shown to user)\
- * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed.\
- * - encoding: MUST be set by user.\
- * - decoding: Set by libavcodec.\
- */\
- int64_t pts;\
-\
- /**\
- * picture number in bitstream order\
- * - encoding: set by\
- * - decoding: Set by libavcodec.\
- */\
- int coded_picture_number;\
- /**\
- * picture number in display order\
- * - encoding: set by\
- * - decoding: Set by libavcodec.\
- */\
- int display_picture_number;\
-\
- /**\
- * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
- * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\
- * - decoding: Set by libavcodec.\
- */\
- int quality; \
-\
- /**\
- * buffer age (1->was last buffer and dint change, 2->..., ...).\
- * Set to INT_MAX if the buffer has not been used yet.\
- * - encoding: unused\
- * - decoding: MUST be set by get_buffer().\
- */\
- int age;\
-\
- /**\
- * is this picture used as reference\
- * The values for this are the same as the MpegEncContext.picture_structure\
- * variable, that is 1->top field, 2->bottom field, 3->frame/both fields.\
- * Set to 4 for delayed, non-reference frames.\
- * - encoding: unused\
- * - decoding: Set by libavcodec. (before get_buffer() call)).\
- */\
- int reference;\
-\
- /**\
- * QP table\
- * - encoding: unused\
- * - decoding: Set by libavcodec.\
- */\
- int8_t *qscale_table;\
- /**\
- * QP store stride\
- * - encoding: unused\
- * - decoding: Set by libavcodec.\
- */\
- int qstride;\
-\
- /**\
- * mbskip_table[mb]>=1 if MB didn't change\
- * stride= mb_width = (width+15)>>4\
- * - encoding: unused\
- * - decoding: Set by libavcodec.\
- */\
- uint8_t *mbskip_table;\
-\
- /**\
- * motion vector table\
- * @code\
- * example:\
- * int mv_sample_log2= 4 - motion_subsample_log2;\
- * int mb_width= (width+15)>>4;\
- * int mv_stride= (mb_width << mv_sample_log2) + 1;\
- * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
- * @endcode\
- * - encoding: Set by user.\
- * - decoding: Set by libavcodec.\
- */\
- int16_t (*motion_val[2])[2];\
-\
- /**\
- * macroblock type table\
- * mb_type_base + mb_width + 2\
- * - encoding: Set by user.\
- * - decoding: Set by libavcodec.\
- */\
- uint32_t *mb_type;\
-\
- /**\
- * log2 of the size of the block which a single vector in motion_val represents: \
- * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
- * - encoding: unused\
- * - decoding: Set by libavcodec.\
- */\
- uint8_t motion_subsample_log2;\
-\
- /**\
- * for some private data of the user\
- * - encoding: unused\
- * - decoding: Set by user.\
- */\
- void *opaque;\
-\
- /**\
- * error\
- * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR.\
- * - decoding: unused\
- */\
- uint64_t error[4];\
-\
- /**\
- * type of the buffer (to keep track of who has to deallocate data[*])\
- * - encoding: Set by the one who allocates it.\
- * - decoding: Set by the one who allocates it.\
- * Note: User allocated (direct rendering) & internal buffers cannot coexist currently.\
- */\
- int type;\
- \
- /**\
- * When decoding, this signals how much the picture must be delayed.\
- * extra_delay = repeat_pict / (2*fps)\
- * - encoding: unused\
- * - decoding: Set by libavcodec.\
- */\
- int repeat_pict;\
- \
- /**\
- * \
- */\
- int qscale_type;\
- \
- /**\
- * The content of the picture is interlaced.\
- * - encoding: Set by user.\
- * - decoding: Set by libavcodec. (default 0)\
- */\
- int interlaced_frame;\
- \
- /**\
- * If the content is interlaced, is top field displayed first.\
- * - encoding: Set by user.\
- * - decoding: Set by libavcodec.\
- */\
- int top_field_first;\
- \
- /**\
- * Pan scan.\
- * - encoding: Set by user.\
- * - decoding: Set by libavcodec.\
- */\
- AVPanScan *pan_scan;\
- \
- /**\
- * Tell user application that palette has changed from previous frame.\
- * - encoding: ??? (no palette-enabled encoder yet)\
- * - decoding: Set by libavcodec. (default 0).\
- */\
- int palette_has_changed;\
- \
- /**\
- * codec suggestion on buffer type if != 0\
- * - encoding: unused\
- * - decoding: Set by libavcodec. (before get_buffer() call)).\
- */\
- int buffer_hints;\
-\
- /**\
- * DCT coefficients\
- * - encoding: unused\
- * - decoding: Set by libavcodec.\
- */\
- short *dct_coeff;\
-\
- /**\
- * motion reference frame index\
- * the order in which these are stored can depend on the codec.\
- * - encoding: Set by user.\
- * - decoding: Set by libavcodec.\
- */\
- int8_t *ref_index[2];\
-\
- /**\
- * reordered opaque 64bit (generally an integer or a double precision float\
- * PTS but can be anything). \
- * The user sets AVCodecContext.reordered_opaque to represent the input at\
- * that time,\
- * the decoder reorders values as needed and sets AVFrame.reordered_opaque\
- * to exactly one of the values provided by the user through AVCodecContext.reordered_opaque \
- * @deprecated in favor of pkt_pts\
- * - encoding: unused\
- * - decoding: Read by user.\
- */\
- int64_t reordered_opaque;\
-\
- /**\
- * hardware accelerator private data (Libav-allocated)\
- * - encoding: unused\
- * - decoding: Set by libavcodec\
- */\
- void *hwaccel_picture_private;\
-\
- /**\
- * reordered pts from the last AVPacket that has been input into the decoder\
- * - encoding: unused\
- * - decoding: Read by user.\
- */\
- int64_t pkt_pts;\
-\
- /**\
- * dts from the last AVPacket that has been input into the decoder\
- * - encoding: unused\
- * - decoding: Read by user.\
- */\
- int64_t pkt_dts;\
-\
- /**\
- * the AVCodecContext which ff_thread_get_buffer() was last called on\
- * - encoding: Set by libavcodec.\
- * - decoding: Set by libavcodec.\
- */\
- struct AVCodecContext *owner;\
-\
- /**\
- * used by multithreading to store frame-specific info\
- * - encoding: Set by libavcodec.\
- * - decoding: Set by libavcodec.\
- */\
- void *thread_opaque;\
-
-#define FF_QSCALE_TYPE_MPEG1 0
-#define FF_QSCALE_TYPE_MPEG2 1
-#define FF_QSCALE_TYPE_H264 2
-#define FF_QSCALE_TYPE_VP56 3
-
-#define FF_BUFFER_TYPE_INTERNAL 1
-#define FF_BUFFER_TYPE_USER 2 ///< direct rendering buffers (image is (de)allocated by user)
-#define FF_BUFFER_TYPE_SHARED 4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared.
-#define FF_BUFFER_TYPE_COPY 8 ///< Just a (modified) copy of some other buffer, don't deallocate anything.
-
-#if FF_API_OLD_FF_PICT_TYPES
-/* DEPRECATED, directly use the AV_PICTURE_TYPE_* enum values */
-#define FF_I_TYPE AV_PICTURE_TYPE_I ///< Intra
-#define FF_P_TYPE AV_PICTURE_TYPE_P ///< Predicted
-#define FF_B_TYPE AV_PICTURE_TYPE_B ///< Bi-dir predicted
-#define FF_S_TYPE AV_PICTURE_TYPE_S ///< S(GMC)-VOP MPEG4
-#define FF_SI_TYPE AV_PICTURE_TYPE_SI ///< Switching Intra
-#define FF_SP_TYPE AV_PICTURE_TYPE_SP ///< Switching Predicted
-#define FF_BI_TYPE AV_PICTURE_TYPE_BI
-#endif
-
-#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore).
-#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer.
-#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content.
-#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update).
-
-enum AVPacketSideDataType {
- AV_PKT_DATA_PALETTE,
-};
-
-typedef struct AVPacket {
- /**
- * Presentation timestamp in AVStream->time_base units; the time at which
- * the decompressed packet will be presented to the user.
- * Can be AV_NOPTS_VALUE if it is not stored in the file.
- * pts MUST be larger or equal to dts as presentation cannot happen before
- * decompression, unless one wants to view hex dumps. Some formats misuse
- * the terms dts and pts/cts to mean something different. Such timestamps
- * must be converted to true pts/dts before they are stored in AVPacket.
- */
- int64_t pts;
- /**
- * Decompression timestamp in AVStream->time_base units; the time at which
- * the packet is decompressed.
- * Can be AV_NOPTS_VALUE if it is not stored in the file.
- */
- int64_t dts;
- uint8_t *data;
- int size;
- int stream_index;
- int flags;
- /**
- * Additional packet data that can be provided by the container.
- * Packet can contain several types of side information.
- */
- struct {
- uint8_t *data;
- int size;
- enum AVPacketSideDataType type;
- } *side_data;
- int side_data_elems;
-
- /**
- * Duration of this packet in AVStream->time_base units, 0 if unknown.
- * Equals next_pts - this_pts in presentation order.
- */
- int duration;
- void (*destruct)(struct AVPacket *);
- void *priv;
- int64_t pos; ///< byte position in stream, -1 if unknown
-
- /**
- * Time difference in AVStream->time_base units from the pts of this
- * packet to the point at which the output from the decoder has converged
- * independent from the availability of previous frames. That is, the
- * frames are virtually identical no matter if decoding started from
- * the very first frame or from this keyframe.
- * Is AV_NOPTS_VALUE if unknown.
- * This field is not the display duration of the current packet.
- * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
- * set.
- *
- * The purpose of this field is to allow seeking in streams that have no
- * keyframes in the conventional sense. It corresponds to the
- * recovery point SEI in H.264 and match_time_delta in NUT. It is also
- * essential for some types of subtitle streams to ensure that all
- * subtitles are correctly displayed after seeking.
- */
- int64_t convergence_duration;
-} AVPacket;
-#define AV_PKT_FLAG_KEY 0x0001
-
-/**
- * Audio Video Frame.
- * New fields can be added to the end of FF_COMMON_FRAME with minor version
- * bumps.
- * Removal, reordering and changes to existing fields require a major
- * version bump. No fields should be added into AVFrame before or after
- * FF_COMMON_FRAME!
- * sizeof(AVFrame) must not be used outside libav*.
- */
-typedef struct AVFrame {
- FF_COMMON_FRAME
-} AVFrame;
-
-/**
- * main external API structure.
- * New fields can be added to the end with minor version bumps.
- * Removal, reordering and changes to existing fields require a major
- * version bump.
- * sizeof(AVCodecContext) must not be used outside libav*.
- */
-typedef struct AVCodecContext {
- /**
- * information on struct for av_log
- * - set by avcodec_alloc_context
- */
- const AVClass *av_class;
- /**
- * the average bitrate
- * - encoding: Set by user; unused for constant quantizer encoding.
- * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream.
- */
- int bit_rate;
-
- /**
- * number of bits the bitstream is allowed to diverge from the reference.
- * the reference can be CBR (for CBR pass1) or VBR (for pass2)
- * - encoding: Set by user; unused for constant quantizer encoding.
- * - decoding: unused
- */
- int bit_rate_tolerance;
-
- /**
- * CODEC_FLAG_*.
- * - encoding: Set by user.
- * - decoding: Set by user.
- */
- int flags;
-
- /**
- * Some codecs need additional format info. It is stored here.
- * If any muxer uses this then ALL demuxers/parsers AND encoders for the
- * specific codec MUST set it correctly otherwise stream copy breaks.
- * In general use of this field by muxers is not recommanded.
- * - encoding: Set by libavcodec.
- * - decoding: Set by libavcodec. (FIXME: Is this OK?)
- */
- int sub_id;
-
- /**
- * Motion estimation algorithm used for video coding.
- * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
- * 8 (umh), 9 (iter), 10 (tesa) [7, 8, 10 are x264 specific, 9 is snow specific]
- * - encoding: MUST be set by user.
- * - decoding: unused
- */
- int me_method;
-
- /**
- * some codecs need / can use extradata like Huffman tables.
- * mjpeg: Huffman tables
- * rv10: additional flags
- * mpeg4: global headers (they can be in the bitstream or here)
- * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
- * than extradata_size to avoid prolems if it is read with the bitstream reader.
- * The bytewise contents of extradata must not depend on the architecture or CPU endianness.
- * - encoding: Set/allocated/freed by libavcodec.
- * - decoding: Set/allocated/freed by user.
- */
- uint8_t *extradata;
- int extradata_size;
-
- /**
- * This is the fundamental unit of time (in seconds) in terms
- * of which frame timestamps are represented. For fixed-fps content,
- * timebase should be 1/framerate and timestamp increments should be
- * identically 1.
- * - encoding: MUST be set by user.
- * - decoding: Set by libavcodec.
- */
- AVRational time_base;
-
- /* video only */
- /**
- * picture width / height.
- * - encoding: MUST be set by user.
- * - decoding: Set by libavcodec.
- * Note: For compatibility it is possible to set this instead of
- * coded_width/height before decoding.
- */
- int width, height;
-
-#define FF_ASPECT_EXTENDED 15
-
- /**
- * the number of pictures in a group of pictures, or 0 for intra_only
- * - encoding: Set by user.
- * - decoding: unused
- */
- int gop_size;
-
- /**
- * Pixel format, see PIX_FMT_xxx.
- * May be set by the demuxer if known from headers.
- * May be overriden by the decoder if it knows better.
- * - encoding: Set by user.
- * - decoding: Set by user if known, overridden by libavcodec if known
- */
- enum PixelFormat pix_fmt;
-
- /**
- * If non NULL, 'draw_horiz_band' is called by the libavcodec
- * decoder to draw a horizontal band. It improves cache usage. Not
- * all codecs can do that. You must check the codec capabilities
- * beforehand.
- * When multithreading is used, it may be called from multiple threads
- * at the same time; threads might draw different parts of the same AVFrame,
- * or multiple AVFrames, and there is no guarantee that slices will be drawn
- * in order.
- * The function is also used by hardware acceleration APIs.
- * It is called at least once during frame decoding to pass
- * the data needed for hardware render.
- * In that mode instead of pixel data, AVFrame points to
- * a structure specific to the acceleration API. The application
- * reads the structure and can change some fields to indicate progress
- * or mark state.
- * - encoding: unused
- * - decoding: Set by user.
- * @param height the height of the slice
- * @param y the y position of the slice
- * @param type 1->top field, 2->bottom field, 3->frame
- * @param offset offset into the AVFrame.data from which the slice should be read
- */
- void (*draw_horiz_band)(struct AVCodecContext *s,
- const AVFrame *src, int offset[4],
- int y, int type, int height);
-
- /* audio only */
- int sample_rate; ///< samples per second
- int channels; ///< number of audio channels
-
- /**
- * audio sample format
- * - encoding: Set by user.
- * - decoding: Set by libavcodec.
- */
- enum AVSampleFormat sample_fmt; ///< sample format
-
- /* The following data should not be initialized. */
- /**
- * Samples per packet, initialized when calling 'init'.
- */
- int frame_size;
- int frame_number; ///< audio or video frame number
-
- /**
- * Number of frames the decoded output will be delayed relative to
- * the encoded input.
- * - encoding: Set by libavcodec.
- * - decoding: unused
- */
- int delay;
-
- /* - encoding parameters */
- float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
- float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
-
- /**
- * minimum quantizer
- * - encoding: Set by user.
- * - decoding: unused
- */
- int qmin;
-
- /**
- * maximum quantizer
- * - encoding: Set by user.
- * - decoding: unused
- */
- int qmax;
-
- /**
- * maximum quantizer difference between frames
- * - encoding: Set by user.
- * - decoding: unused
- */
- int max_qdiff;
-
- /**
- * maximum number of B-frames between non-B-frames
- * Note: The output will be delayed by max_b_frames+1 relative to the input.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int max_b_frames;
-
- /**
- * qscale factor between IP and B-frames
- * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset).
- * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
- * - encoding: Set by user.
- * - decoding: unused
- */
- float b_quant_factor;
-
- /** obsolete FIXME remove */
- int rc_strategy;
-#define FF_RC_STRATEGY_XVID 1
-
- int b_frame_strategy;
-
- struct AVCodec *codec;
-
- void *priv_data;
-
- int rtp_payload_size; /* The size of the RTP payload: the coder will */
- /* do its best to deliver a chunk with size */
- /* below rtp_payload_size, the chunk will start */
- /* with a start code on some codecs like H.263. */
- /* This doesn't take account of any particular */
- /* headers inside the transmitted RTP payload. */
-
-
- /* The RTP callback: This function is called */
- /* every time the encoder has a packet to send. */
- /* It depends on the encoder if the data starts */
- /* with a Start Code (it should). H.263 does. */
- /* mb_nb contains the number of macroblocks */
- /* encoded in the RTP payload. */
- void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
-
- /* statistics, used for 2-pass encoding */
- int mv_bits;
- int header_bits;
- int i_tex_bits;
- int p_tex_bits;
- int i_count;
- int p_count;
- int skip_count;
- int misc_bits;
-
- /**
- * number of bits used for the previously encoded frame
- * - encoding: Set by libavcodec.
- * - decoding: unused
- */
- int frame_bits;
-
- /**
- * Private data of the user, can be used to carry app specific stuff.
- * - encoding: Set by user.
- * - decoding: Set by user.
- */
- void *opaque;
-
- char codec_name[32];
- enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
- enum CodecID codec_id; /* see CODEC_ID_xxx */
-
- /**
- * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
- * This is used to work around some encoder bugs.
- * A demuxer should set this to what is stored in the field used to identify the codec.
- * If there are multiple such fields in a container then the demuxer should choose the one
- * which maximizes the information about the used codec.
- * If the codec tag field in a container is larger then 32 bits then the demuxer should
- * remap the longer ID to 32 bits with a table or other structure. Alternatively a new
- * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated
- * first.
- * - encoding: Set by user, if not then the default based on codec_id will be used.
- * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
- */
- unsigned int codec_tag;
-
- /**
- * Work around bugs in encoders which sometimes cannot be detected automatically.
- * - encoding: Set by user
- * - decoding: Set by user
- */
- int workaround_bugs;
-#define FF_BUG_AUTODETECT 1 ///< autodetection
-#define FF_BUG_OLD_MSMPEG4 2
-#define FF_BUG_XVID_ILACE 4
-#define FF_BUG_UMP4 8
-#define FF_BUG_NO_PADDING 16
-#define FF_BUG_AMV 32
-#define FF_BUG_AC_VLC 0 ///< Will be removed, libavcodec can now handle these non-compliant files by default.
-#define FF_BUG_QPEL_CHROMA 64
-#define FF_BUG_STD_QPEL 128
-#define FF_BUG_QPEL_CHROMA2 256
-#define FF_BUG_DIRECT_BLOCKSIZE 512
-#define FF_BUG_EDGE 1024
-#define FF_BUG_HPEL_CHROMA 2048
-#define FF_BUG_DC_CLIP 4096
-#define FF_BUG_MS 8192 ///< Work around various bugs in Microsoft's broken decoders.
-#define FF_BUG_TRUNCATED 16384
-//#define FF_BUG_FAKE_SCALABILITY 16 //Autodetection should work 100%.
-
- /**
- * luma single coefficient elimination threshold
- * - encoding: Set by user.
- * - decoding: unused
- */
- int luma_elim_threshold;
-
- /**
- * chroma single coeff elimination threshold
- * - encoding: Set by user.
- * - decoding: unused
- */
- int chroma_elim_threshold;
-
- /**
- * strictly follow the standard (MPEG4, ...).
- * - encoding: Set by user.
- * - decoding: Set by user.
- * Setting this to STRICT or higher means the encoder and decoder will
- * generally do stupid things, whereas setting it to unofficial or lower
- * will mean the encoder might produce output that is not supported by all
- * spec-compliant decoders. Decoders don't differentiate between normal,
- * unofficial and experimental (that is, they always try to decode things
- * when they can) unless they are explicitly asked to behave stupidly
- * (=strictly conform to the specs)
- */
- int strict_std_compliance;
-#define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to an older more strict version of the spec or reference software.
-#define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences.
-#define FF_COMPLIANCE_NORMAL 0
-#define FF_COMPLIANCE_UNOFFICIAL -1 ///< Allow unofficial extensions
-#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
-
- /**
- * qscale offset between IP and B-frames
- * - encoding: Set by user.
- * - decoding: unused
- */
- float b_quant_offset;
-
- /**
- * Error recognization; higher values will detect more errors but may
- * misdetect some more or less valid parts as errors.
- * - encoding: unused
- * - decoding: Set by user.
- */
- int error_recognition;
-#define FF_ER_CAREFUL 1
-#define FF_ER_COMPLIANT 2
-#define FF_ER_AGGRESSIVE 3
-#define FF_ER_VERY_AGGRESSIVE 4
-
- /**
- * Called at the beginning of each frame to get a buffer for it.
- * If pic.reference is set then the frame will be read later by libavcodec.
- * avcodec_align_dimensions2() should be used to find the required width and
- * height, as they normally need to be rounded up to the next multiple of 16.
- * if CODEC_CAP_DR1 is not set then get_buffer() must call
- * avcodec_default_get_buffer() instead of providing buffers allocated by
- * some other means.
- * If frame multithreading is used and thread_safe_callbacks is set,
- * it may be called from a different thread, but not from more than one at once.
- * Does not need to be reentrant.
- * - encoding: unused
- * - decoding: Set by libavcodec, user can override.
- */
- int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
-
- /**
- * Called to release buffers which were allocated with get_buffer.
- * A released buffer can be reused in get_buffer().
- * pic.data[*] must be set to NULL.
- * May be called from a different thread if frame multithreading is used,
- * but not by more than one thread at once, so does not need to be reentrant.
- * - encoding: unused
- * - decoding: Set by libavcodec, user can override.
- */
- void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
-
- /**
- * Size of the frame reordering buffer in the decoder.
- * For MPEG-2 it is 1 IPB or 0 low delay IP.
- * - encoding: Set by libavcodec.
- * - decoding: Set by libavcodec.
- */
- int has_b_frames;
-
- /**
- * number of bytes per packet if constant and known or 0
- * Used by some WAV based audio codecs.
- */
- int block_align;
-
- int parse_only; /* - decoding only: If true, only parsing is done
- (function avcodec_parse_frame()). The frame
- data is returned. Only MPEG codecs support this now. */
-
- /**
- * 0-> h263 quant 1-> mpeg quant
- * - encoding: Set by user.
- * - decoding: unused
- */
- int mpeg_quant;
-
- /**
- * pass1 encoding statistics output buffer
- * - encoding: Set by libavcodec.
- * - decoding: unused
- */
- char *stats_out;
-
- /**
- * pass2 encoding statistics input buffer
- * Concatenated stuff from stats_out of pass1 should be placed here.
- * - encoding: Allocated/set/freed by user.
- * - decoding: unused
- */
- char *stats_in;
-
- /**
- * ratecontrol qmin qmax limiting method
- * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax.
- * - encoding: Set by user.
- * - decoding: unused
- */
- float rc_qsquish;
-
- float rc_qmod_amp;
- int rc_qmod_freq;
-
- /**
- * ratecontrol override, see RcOverride
- * - encoding: Allocated/set/freed by user.
- * - decoding: unused
- */
- RcOverride *rc_override;
- int rc_override_count;
-
- /**
- * rate control equation
- * - encoding: Set by user
- * - decoding: unused
- */
- const char *rc_eq;
-
- /**
- * maximum bitrate
- * - encoding: Set by user.
- * - decoding: unused
- */
- int rc_max_rate;
-
- /**
- * minimum bitrate
- * - encoding: Set by user.
- * - decoding: unused
- */
- int rc_min_rate;
-
- /**
- * decoder bitstream buffer size
- * - encoding: Set by user.
- * - decoding: unused
- */
- int rc_buffer_size;
- float rc_buffer_aggressivity;
-
- /**
- * qscale factor between P and I-frames
- * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset).
- * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
- * - encoding: Set by user.
- * - decoding: unused
- */
- float i_quant_factor;
-
- /**
- * qscale offset between P and I-frames
- * - encoding: Set by user.
- * - decoding: unused
- */
- float i_quant_offset;
-
- /**
- * initial complexity for pass1 ratecontrol
- * - encoding: Set by user.
- * - decoding: unused
- */
- float rc_initial_cplx;
-
- /**
- * DCT algorithm, see FF_DCT_* below
- * - encoding: Set by user.
- * - decoding: unused
- */
- int dct_algo;
-#define FF_DCT_AUTO 0
-#define FF_DCT_FASTINT 1
-#define FF_DCT_INT 2
-#define FF_DCT_MMX 3
-#define FF_DCT_MLIB 4
-#define FF_DCT_ALTIVEC 5
-#define FF_DCT_FAAN 6
-
- /**
- * luminance masking (0-> disabled)
- * - encoding: Set by user.
- * - decoding: unused
- */
- float lumi_masking;
-
- /**
- * temporary complexity masking (0-> disabled)
- * - encoding: Set by user.
- * - decoding: unused
- */
- float temporal_cplx_masking;
-
- /**
- * spatial complexity masking (0-> disabled)
- * - encoding: Set by user.
- * - decoding: unused
- */
- float spatial_cplx_masking;
-
- /**
- * p block masking (0-> disabled)
- * - encoding: Set by user.
- * - decoding: unused
- */
- float p_masking;
-
- /**
- * darkness masking (0-> disabled)
- * - encoding: Set by user.
- * - decoding: unused
- */
- float dark_masking;
-
- /**
- * IDCT algorithm, see FF_IDCT_* below.
- * - encoding: Set by user.
- * - decoding: Set by user.
- */
- int idct_algo;
-#define FF_IDCT_AUTO 0
-#define FF_IDCT_INT 1
-#define FF_IDCT_SIMPLE 2
-#define FF_IDCT_SIMPLEMMX 3
-#define FF_IDCT_LIBMPEG2MMX 4
-#define FF_IDCT_PS2 5
-#define FF_IDCT_MLIB 6
-#define FF_IDCT_ARM 7
-#define FF_IDCT_ALTIVEC 8
-#define FF_IDCT_SH4 9
-#define FF_IDCT_SIMPLEARM 10
-#define FF_IDCT_H264 11
-#define FF_IDCT_VP3 12
-#define FF_IDCT_IPP 13
-#define FF_IDCT_XVIDMMX 14
-#define FF_IDCT_CAVS 15
-#define FF_IDCT_SIMPLEARMV5TE 16
-#define FF_IDCT_SIMPLEARMV6 17
-#define FF_IDCT_SIMPLEVIS 18
-#define FF_IDCT_WMV2 19
-#define FF_IDCT_FAAN 20
-#define FF_IDCT_EA 21
-#define FF_IDCT_SIMPLENEON 22
-#define FF_IDCT_SIMPLEALPHA 23
-#define FF_IDCT_BINK 24
-
- /**
- * slice count
- * - encoding: Set by libavcodec.
- * - decoding: Set by user (or 0).
- */
- int slice_count;
- /**
- * slice offsets in the frame in bytes
- * - encoding: Set/allocated by libavcodec.
- * - decoding: Set/allocated by user (or NULL).
- */
- int *slice_offset;
-
- /**
- * error concealment flags
- * - encoding: unused
- * - decoding: Set by user.
- */
- int error_concealment;
-#define FF_EC_GUESS_MVS 1
-#define FF_EC_DEBLOCK 2
-
- /**
- * dsp_mask could be add used to disable unwanted CPU features
- * CPU features (i.e. MMX, SSE. ...)
- *
- * With the FORCE flag you may instead enable given CPU features.
- * (Dangerous: Usable in case of misdetection, improper usage however will
- * result into program crash.)
- */
- unsigned dsp_mask;
-
- /**
- * bits per sample/pixel from the demuxer (needed for huffyuv).
- * - encoding: Set by libavcodec.
- * - decoding: Set by user.
- */
- int bits_per_coded_sample;
-
- /**
- * prediction method (needed for huffyuv)
- * - encoding: Set by user.
- * - decoding: unused
- */
- int prediction_method;
-#define FF_PRED_LEFT 0
-#define FF_PRED_PLANE 1
-#define FF_PRED_MEDIAN 2
-
- /**
- * sample aspect ratio (0 if unknown)
- * That is the width of a pixel divided by the height of the pixel.
- * Numerator and denominator must be relatively prime and smaller than 256 for some video standards.
- * - encoding: Set by user.
- * - decoding: Set by libavcodec.
- */
- AVRational sample_aspect_ratio;
-
- /**
- * the picture in the bitstream
- * - encoding: Set by libavcodec.
- * - decoding: Set by libavcodec.
- */
- AVFrame *coded_frame;
-
- /**
- * debug
- * - encoding: Set by user.
- * - decoding: Set by user.
- */
- int debug;
-#define FF_DEBUG_PICT_INFO 1
-#define FF_DEBUG_RC 2
-#define FF_DEBUG_BITSTREAM 4
-#define FF_DEBUG_MB_TYPE 8
-#define FF_DEBUG_QP 16
-#define FF_DEBUG_MV 32
-#define FF_DEBUG_DCT_COEFF 0x00000040
-#define FF_DEBUG_SKIP 0x00000080
-#define FF_DEBUG_STARTCODE 0x00000100
-#define FF_DEBUG_PTS 0x00000200
-#define FF_DEBUG_ER 0x00000400
-#define FF_DEBUG_MMCO 0x00000800
-#define FF_DEBUG_BUGS 0x00001000
-#define FF_DEBUG_VIS_QP 0x00002000
-#define FF_DEBUG_VIS_MB_TYPE 0x00004000
-#define FF_DEBUG_BUFFERS 0x00008000
-#define FF_DEBUG_THREADS 0x00010000
-
- /**
- * debug
- * - encoding: Set by user.
- * - decoding: Set by user.
- */
- int debug_mv;
-#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
-#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
-#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
-
- /**
- * error
- * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR.
- * - decoding: unused
- */
- uint64_t error[4];
-
- /**
- * motion estimation comparison function
- * - encoding: Set by user.
- * - decoding: unused
- */
- int me_cmp;
- /**
- * subpixel motion estimation comparison function
- * - encoding: Set by user.
- * - decoding: unused
- */
- int me_sub_cmp;
- /**
- * macroblock comparison function (not supported yet)
- * - encoding: Set by user.
- * - decoding: unused
- */
- int mb_cmp;
- /**
- * interlaced DCT comparison function
- * - encoding: Set by user.
- * - decoding: unused
- */
- int ildct_cmp;
-#define FF_CMP_SAD 0
-#define FF_CMP_SSE 1
-#define FF_CMP_SATD 2
-#define FF_CMP_DCT 3
-#define FF_CMP_PSNR 4
-#define FF_CMP_BIT 5
-#define FF_CMP_RD 6
-#define FF_CMP_ZERO 7
-#define FF_CMP_VSAD 8
-#define FF_CMP_VSSE 9
-#define FF_CMP_NSSE 10
-#define FF_CMP_W53 11
-#define FF_CMP_W97 12
-#define FF_CMP_DCTMAX 13
-#define FF_CMP_DCT264 14
-#define FF_CMP_CHROMA 256
-
- /**
- * ME diamond size & shape
- * - encoding: Set by user.
- * - decoding: unused
- */
- int dia_size;
-
- /**
- * amount of previous MV predictors (2a+1 x 2a+1 square)
- * - encoding: Set by user.
- * - decoding: unused
- */
- int last_predictor_count;
-
- /**
- * prepass for motion estimation
- * - encoding: Set by user.
- * - decoding: unused
- */
- int pre_me;
-
- /**
- * motion estimation prepass comparison function
- * - encoding: Set by user.
- * - decoding: unused
- */
- int me_pre_cmp;
-
- /**
- * ME prepass diamond size & shape
- * - encoding: Set by user.
- * - decoding: unused
- */
- int pre_dia_size;
-
- /**
- * subpel ME quality
- * - encoding: Set by user.
- * - decoding: unused
- */
- int me_subpel_quality;
-
- /**
- * callback to negotiate the pixelFormat
- * @param fmt is the list of formats which are supported by the codec,
- * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
- * The first is always the native one.
- * @return the chosen format
- * - encoding: unused
- * - decoding: Set by user, if not set the native format will be chosen.
- */
- enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
-
- /**
- * DTG active format information (additional aspect ratio
- * information only used in DVB MPEG-2 transport streams)
- * 0 if not set.
- *
- * - encoding: unused
- * - decoding: Set by decoder.
- */
- int dtg_active_format;
-#define FF_DTG_AFD_SAME 8
-#define FF_DTG_AFD_4_3 9
-#define FF_DTG_AFD_16_9 10
-#define FF_DTG_AFD_14_9 11
-#define FF_DTG_AFD_4_3_SP_14_9 13
-#define FF_DTG_AFD_16_9_SP_14_9 14
-#define FF_DTG_AFD_SP_4_3 15
-
- /**
- * maximum motion estimation search range in subpel units
- * If 0 then no limit.
- *
- * - encoding: Set by user.
- * - decoding: unused
- */
- int me_range;
-
- /**
- * intra quantizer bias
- * - encoding: Set by user.
- * - decoding: unused
- */
- int intra_quant_bias;
-#define FF_DEFAULT_QUANT_BIAS 999999
-
- /**
- * inter quantizer bias
- * - encoding: Set by user.
- * - decoding: unused
- */
- int inter_quant_bias;
-
- /**
- * color table ID
- * - encoding: unused
- * - decoding: Which clrtable should be used for 8bit RGB images.
- * Tables have to be stored somewhere. FIXME
- */
- int color_table_id;
-
- /**
- * internal_buffer count
- * Don't touch, used by libavcodec default_get_buffer().
- */
- int internal_buffer_count;
-
- /**
- * internal_buffers
- * Don't touch, used by libavcodec default_get_buffer().
- */
- void *internal_buffer;
-
- /**
- * Global quality for codecs which cannot change it per frame.
- * This should be proportional to MPEG-1/2/4 qscale.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int global_quality;
-
-#define FF_CODER_TYPE_VLC 0
-#define FF_CODER_TYPE_AC 1
-#define FF_CODER_TYPE_RAW 2
-#define FF_CODER_TYPE_RLE 3
-#define FF_CODER_TYPE_DEFLATE 4
- /**
- * coder type
- * - encoding: Set by user.
- * - decoding: unused
- */
- int coder_type;
-
- /**
- * context model
- * - encoding: Set by user.
- * - decoding: unused
- */
- int context_model;
-#if 0
- /**
- *
- * - encoding: unused
- * - decoding: Set by user.
- */
- uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
-#endif
-
- /**
- * slice flags
- * - encoding: unused
- * - decoding: Set by user.
- */
- int slice_flags;
-#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
-#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
-#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
-
- /**
- * XVideo Motion Acceleration
- * - encoding: forbidden
- * - decoding: set by decoder
- */
- int xvmc_acceleration;
-
- /**
- * macroblock decision mode
- * - encoding: Set by user.
- * - decoding: unused
- */
- int mb_decision;
-#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
-#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
-#define FF_MB_DECISION_RD 2 ///< rate distortion
-
- /**
- * custom intra quantization matrix
- * - encoding: Set by user, can be NULL.
- * - decoding: Set by libavcodec.
- */
- uint16_t *intra_matrix;
-
- /**
- * custom inter quantization matrix
- * - encoding: Set by user, can be NULL.
- * - decoding: Set by libavcodec.
- */
- uint16_t *inter_matrix;
-
- /**
- * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
- * This is used to work around some encoder bugs.
- * - encoding: unused
- * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
- */
- unsigned int stream_codec_tag;
-
- /**
- * scene change detection threshold
- * 0 is default, larger means fewer detected scene changes.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int scenechange_threshold;
-
- /**
- * minimum Lagrange multipler
- * - encoding: Set by user.
- * - decoding: unused
- */
- int lmin;
-
- /**
- * maximum Lagrange multipler
- * - encoding: Set by user.
- * - decoding: unused
- */
- int lmax;
-
-#if FF_API_PALETTE_CONTROL
- /**
- * palette control structure
- * - encoding: ??? (no palette-enabled encoder yet)
- * - decoding: Set by user.
- */
- struct AVPaletteControl *palctrl;
-#endif
-
- /**
- * noise reduction strength
- * - encoding: Set by user.
- * - decoding: unused
- */
- int noise_reduction;
-
- /**
- * Called at the beginning of a frame to get cr buffer for it.
- * Buffer type (size, hints) must be the same. libavcodec won't check it.
- * libavcodec will pass previous buffer in pic, function should return
- * same buffer or new buffer with old frame "painted" into it.
- * If pic.data[0] == NULL must behave like get_buffer().
- * if CODEC_CAP_DR1 is not set then reget_buffer() must call
- * avcodec_default_reget_buffer() instead of providing buffers allocated by
- * some other means.
- * - encoding: unused
- * - decoding: Set by libavcodec, user can override.
- */
- int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
-
- /**
- * Number of bits which should be loaded into the rc buffer before decoding starts.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int rc_initial_buffer_occupancy;
-
- /**
- *
- * - encoding: Set by user.
- * - decoding: unused
- */
- int inter_threshold;
-
- /**
- * CODEC_FLAG2_*
- * - encoding: Set by user.
- * - decoding: Set by user.
- */
- int flags2;
-
- /**
- * Simulates errors in the bitstream to test error concealment.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int error_rate;
-
-#if FF_API_ANTIALIAS_ALGO
- /**
- * MP3 antialias algorithm, see FF_AA_* below.
- * - encoding: unused
- * - decoding: Set by user.
- */
- attribute_deprecated int antialias_algo;
-#define FF_AA_AUTO 0
-#define FF_AA_FASTINT 1 //not implemented yet
-#define FF_AA_INT 2
-#define FF_AA_FLOAT 3
-#endif
-
- /**
- * quantizer noise shaping
- * - encoding: Set by user.
- * - decoding: unused
- */
- int quantizer_noise_shaping;
-
- /**
- * thread count
- * is used to decide how many independent tasks should be passed to execute()
- * - encoding: Set by user.
- * - decoding: Set by user.
- */
- int thread_count;
-
- /**
- * The codec may call this to execute several independent things.
- * It will return only after finishing all tasks.
- * The user may replace this with some multithreaded implementation,
- * the default implementation will execute the parts serially.
- * @param count the number of things to execute
- * - encoding: Set by libavcodec, user can override.
- * - decoding: Set by libavcodec, user can override.
- */
- int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);
-
- /**
- * thread opaque
- * Can be used by execute() to store some per AVCodecContext stuff.
- * - encoding: set by execute()
- * - decoding: set by execute()
- */
- void *thread_opaque;
-
- /**
- * Motion estimation threshold below which no motion estimation is
- * performed, but instead the user specified motion vectors are used.
- *
- * - encoding: Set by user.
- * - decoding: unused
- */
- int me_threshold;
-
- /**
- * Macroblock threshold below which the user specified macroblock types will be used.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int mb_threshold;
-
- /**
- * precision of the intra DC coefficient - 8
- * - encoding: Set by user.
- * - decoding: unused
- */
- int intra_dc_precision;
-
- /**
- * noise vs. sse weight for the nsse comparsion function
- * - encoding: Set by user.
- * - decoding: unused
- */
- int nsse_weight;
-
- /**
- * Number of macroblock rows at the top which are skipped.
- * - encoding: unused
- * - decoding: Set by user.
- */
- int skip_top;
-
- /**
- * Number of macroblock rows at the bottom which are skipped.
- * - encoding: unused
- * - decoding: Set by user.
- */
- int skip_bottom;
-
- /**
- * profile
- * - encoding: Set by user.
- * - decoding: Set by libavcodec.
- */
- int profile;
-#define FF_PROFILE_UNKNOWN -99
-#define FF_PROFILE_RESERVED -100
-
-#define FF_PROFILE_AAC_MAIN 0
-#define FF_PROFILE_AAC_LOW 1
-#define FF_PROFILE_AAC_SSR 2
-#define FF_PROFILE_AAC_LTP 3
-
-#define FF_PROFILE_DTS 20
-#define FF_PROFILE_DTS_ES 30
-#define FF_PROFILE_DTS_96_24 40
-#define FF_PROFILE_DTS_HD_HRA 50
-#define FF_PROFILE_DTS_HD_MA 60
-
-#define FF_PROFILE_MPEG2_422 0
-#define FF_PROFILE_MPEG2_HIGH 1
-#define FF_PROFILE_MPEG2_SS 2
-#define FF_PROFILE_MPEG2_SNR_SCALABLE 3
-#define FF_PROFILE_MPEG2_MAIN 4
-#define FF_PROFILE_MPEG2_SIMPLE 5
-
-#define FF_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag
-#define FF_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag
-
-#define FF_PROFILE_H264_BASELINE 66
-#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)
-#define FF_PROFILE_H264_MAIN 77
-#define FF_PROFILE_H264_EXTENDED 88
-#define FF_PROFILE_H264_HIGH 100
-#define FF_PROFILE_H264_HIGH_10 110
-#define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA)
-#define FF_PROFILE_H264_HIGH_422 122
-#define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA)
-#define FF_PROFILE_H264_HIGH_444 144
-#define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244
-#define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA)
-#define FF_PROFILE_H264_CAVLC_444 44
-
-#define FF_PROFILE_VC1_SIMPLE 0
-#define FF_PROFILE_VC1_MAIN 1
-#define FF_PROFILE_VC1_COMPLEX 2
-#define FF_PROFILE_VC1_ADVANCED 3
-
- /**
- * level
- * - encoding: Set by user.
- * - decoding: Set by libavcodec.
- */
- int level;
-#define FF_LEVEL_UNKNOWN -99
-
- /**
- * low resolution decoding, 1-> 1/2 size, 2->1/4 size
- * - encoding: unused
- * - decoding: Set by user.
- */
- int lowres;
-
- /**
- * Bitstream width / height, may be different from width/height if lowres
- * or other things are used.
- * - encoding: unused
- * - decoding: Set by user before init if known. Codec should override / dynamically change if needed.
- */
- int coded_width, coded_height;
-
- /**
- * frame skip threshold
- * - encoding: Set by user.
- * - decoding: unused
- */
- int frame_skip_threshold;
-
- /**
- * frame skip factor
- * - encoding: Set by user.
- * - decoding: unused
- */
- int frame_skip_factor;
-
- /**
- * frame skip exponent
- * - encoding: Set by user.
- * - decoding: unused
- */
- int frame_skip_exp;
-
- /**
- * frame skip comparison function
- * - encoding: Set by user.
- * - decoding: unused
- */
- int frame_skip_cmp;
-
- /**
- * Border processing masking, raises the quantizer for mbs on the borders
- * of the picture.
- * - encoding: Set by user.
- * - decoding: unused
- */
- float border_masking;
-
- /**
- * minimum MB lagrange multipler
- * - encoding: Set by user.
- * - decoding: unused
- */
- int mb_lmin;
-
- /**
- * maximum MB lagrange multipler
- * - encoding: Set by user.
- * - decoding: unused
- */
- int mb_lmax;
-
- /**
- *
- * - encoding: Set by user.
- * - decoding: unused
- */
- int me_penalty_compensation;
-
- /**
- *
- * - encoding: unused
- * - decoding: Set by user.
- */
- enum AVDiscard skip_loop_filter;
-
- /**
- *
- * - encoding: unused
- * - decoding: Set by user.
- */
- enum AVDiscard skip_idct;
-
- /**
- *
- * - encoding: unused
- * - decoding: Set by user.
- */
- enum AVDiscard skip_frame;
-
- /**
- *
- * - encoding: Set by user.
- * - decoding: unused
- */
- int bidir_refine;
-
- /**
- *
- * - encoding: Set by user.
- * - decoding: unused
- */
- int brd_scale;
-
- /**
- * constant rate factor - quality-based VBR - values ~correspond to qps
- * - encoding: Set by user.
- * - decoding: unused
- */
- float crf;
-
- /**
- * constant quantization parameter rate control method
- * - encoding: Set by user.
- * - decoding: unused
- */
- int cqp;
-
- /**
- * minimum GOP size
- * - encoding: Set by user.
- * - decoding: unused
- */
- int keyint_min;
-
- /**
- * number of reference frames
- * - encoding: Set by user.
- * - decoding: Set by lavc.
- */
- int refs;
-
- /**
- * chroma qp offset from luma
- * - encoding: Set by user.
- * - decoding: unused
- */
- int chromaoffset;
-
- /**
- * Influences how often B-frames are used.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int bframebias;
-
- /**
- * trellis RD quantization
- * - encoding: Set by user.
- * - decoding: unused
- */
- int trellis;
-
- /**
- * Reduce fluctuations in qp (before curve compression).
- * - encoding: Set by user.
- * - decoding: unused
- */
- float complexityblur;
-
- /**
- * in-loop deblocking filter alphac0 parameter
- * alpha is in the range -6...6
- * - encoding: Set by user.
- * - decoding: unused
- */
- int deblockalpha;
-
- /**
- * in-loop deblocking filter beta parameter
- * beta is in the range -6...6
- * - encoding: Set by user.
- * - decoding: unused
- */
- int deblockbeta;
-
- /**
- * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
- * - encoding: Set by user.
- * - decoding: unused
- */
- int partitions;
-#define X264_PART_I4X4 0x001 /* Analyze i4x4 */
-#define X264_PART_I8X8 0x002 /* Analyze i8x8 (requires 8x8 transform) */
-#define X264_PART_P8X8 0x010 /* Analyze p16x8, p8x16 and p8x8 */
-#define X264_PART_P4X4 0x020 /* Analyze p8x4, p4x8, p4x4 */
-#define X264_PART_B8X8 0x100 /* Analyze b16x8, b8x16 and b8x8 */
-
- /**
- * direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)
- * - encoding: Set by user.
- * - decoding: unused
- */
- int directpred;
-
- /**
- * Audio cutoff bandwidth (0 means "automatic")
- * - encoding: Set by user.
- * - decoding: unused
- */
- int cutoff;
-
- /**
- * Multiplied by qscale for each frame and added to scene_change_score.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int scenechange_factor;
-
- /**
- *
- * Note: Value depends upon the compare function used for fullpel ME.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int mv0_threshold;
-
- /**
- * Adjusts sensitivity of b_frame_strategy 1.
- * - encoding: Set by user.
- * - decoding: unused
- */
- int b_sensitivity;
-
- /**
- * - encoding: Set by user.
- * - decoding: unused
- */
- int compression_level;
-#define FF_COMPRESSION_DEFAULT -1
-
- /**
- * - encoding: Set by user.
- * - decoding: unused
- */
- int min_prediction_order;
-
- /**
- * - encoding: Set by user.
- * - decoding: unused
- */
- int max_prediction_order;
-
-#if FF_API_FLAC_GLOBAL_OPTS
- /**
- * @name FLAC options
- * @deprecated Use FLAC encoder private options instead.
- * @{
- */
-
- /**
- * LPC coefficient precision - used by FLAC encoder
- * - encoding: Set by user.
- * - decoding: unused
- */
- attribute_deprecated int lpc_coeff_precision;
-
- /**
- * search method for selecting prediction order
- * - encoding: Set by user.
- * - decoding: unused
- */
- attribute_deprecated int prediction_order_method;
-
- /**
- * - encoding: Set by user.
- * - decoding: unused
- */
- attribute_deprecated int min_partition_order;
-
- /**
- * - encoding: Set by user.
- * - decoding: unused
- */
- attribute_deprecated int max_partition_order;
- /**
- * @}
- */
-#endif
-
- /**
- * GOP timecode frame start number, in non drop frame format
- * - encoding: Set by user.
- * - decoding: unused
- */
- int64_t timecode_frame_start;
-
-#if FF_API_REQUEST_CHANNELS
- /**
- * Decoder should decode to this many channels if it can (0 for default)
- * - encoding: unused
- * - decoding: Set by user.
- * @deprecated Deprecated in favor of request_channel_layout.
- */
- int request_channels;
-#endif
-
- /**
- * Percentage of dynamic range compression to be applied by the decoder.
- * The default value is 1.0, corresponding to full compression.
- * - encoding: unused
- * - decoding: Set by user.
- */
- float drc_scale;
-
- /**
- * opaque 64bit number (generally a PTS) that will be reordered and
- * output in AVFrame.reordered_opaque
- * @deprecated in favor of pkt_pts
- * - encoding: unused
- * - decoding: Set by user.
- */
- int64_t reordered_opaque;
-
- /**
- * Bits per sample/pixel of internal libavcodec pixel/sample format.
- * This field is applicable only when sample_fmt is AV_SAMPLE_FMT_S32.
- * - encoding: set by user.
- * - decoding: set by libavcodec.
- */
- int bits_per_raw_sample;
-
- /**
- * Audio channel layout.
- * - encoding: set by user.
- * - decoding: set by libavcodec.
- */
- int64_t channel_layout;
-
- /**
- * Request decoder to use this channel layout if it can (0 for default)
- * - encoding: unused
- * - decoding: Set by user.
- */
- int64_t request_channel_layout;
-
- /**
- * Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow.
- * - encoding: Set by user.
- * - decoding: unused.
- */
- float rc_max_available_vbv_use;
-
- /**
- * Ratecontrol attempt to use, at least, <value> times the amount needed to prevent a vbv overflow.
- * - encoding: Set by user.
- * - decoding: unused.
- */
- float rc_min_vbv_overflow_use;
-
- /**
- * Hardware accelerator in use
- * - encoding: unused.
- * - decoding: Set by libavcodec
- */
- struct AVHWAccel *hwaccel;
-
- /**
- * For some codecs, the time base is closer to the field rate than the frame rate.
- * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration
- * if no telecine is used ...
- *
- * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2.
- */
- int ticks_per_frame;
-
- /**
- * Hardware accelerator context.
- * For some hardware accelerators, a global context needs to be
- * provided by the user. In that case, this holds display-dependent
- * data Libav cannot instantiate itself. Please refer to the
- * Libav HW accelerator documentation to know how to fill this
- * is. e.g. for VA API, this is a struct vaapi_context.
- * - encoding: unused
- * - decoding: Set by user
- */
- void *hwaccel_context;
-
- /**
- * Chromaticity coordinates of the source primaries.
- * - encoding: Set by user
- * - decoding: Set by libavcodec
- */
- enum AVColorPrimaries color_primaries;
-
- /**
- * Color Transfer Characteristic.
- * - encoding: Set by user
- * - decoding: Set by libavcodec
- */
- enum AVColorTransferCharacteristic color_trc;
-
- /**
- * YUV colorspace type.
- * - encoding: Set by user
- * - decoding: Set by libavcodec
- */
- enum AVColorSpace colorspace;
-
- /**
- * MPEG vs JPEG YUV range.
- * - encoding: Set by user
- * - decoding: Set by libavcodec
- */
- enum AVColorRange color_range;
-
- /**
- * This defines the location of chroma samples.
- * - encoding: Set by user
- * - decoding: Set by libavcodec
- */
- enum AVChromaLocation chroma_sample_location;
-
- /**
- * The codec may call this to execute several independent things.
- * It will return only after finishing all tasks.
- * The user may replace this with some multithreaded implementation,
- * the default implementation will execute the parts serially.
- * Also see avcodec_thread_init and e.g. the --enable-pthread configure option.
- * @param c context passed also to func
- * @param count the number of things to execute
- * @param arg2 argument passed unchanged to func
- * @param ret return values of executed functions, must have space for "count" values. May be NULL.
- * @param func function that will be called count times, with jobnr from 0 to count-1.
- * threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no
- * two instances of func executing at the same time will have the same threadnr.
- * @return always 0 currently, but code should handle a future improvement where when any call to func
- * returns < 0 no further calls to func may be done and < 0 is returned.
- * - encoding: Set by libavcodec, user can override.
- * - decoding: Set by libavcodec, user can override.
- */
- int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count);
-
- /**
- * explicit P-frame weighted prediction analysis method
- * 0: off
- * 1: fast blind weighting (one reference duplicate with -1 offset)
- * 2: smart weighting (full fade detection analysis)
- * - encoding: Set by user.
- * - decoding: unused
- */
- int weighted_p_pred;
-
- /**
- * AQ mode
- * 0: Disabled
- * 1: Variance AQ (complexity mask)
- * 2: Auto-variance AQ (experimental)
- * - encoding: Set by user
- * - decoding: unused
- */
- int aq_mode;
-
- /**
- * AQ strength
- * Reduces blocking and blurring in flat and textured areas.
- * - encoding: Set by user
- * - decoding: unused
- */
- float aq_strength;
-
- /**
- * PSY RD
- * Strength of psychovisual optimization
- * - encoding: Set by user
- * - decoding: unused
- */
- float psy_rd;
-
- /**
- * PSY trellis
- * Strength of psychovisual optimization
- * - encoding: Set by user
- * - decoding: unused
- */
- float psy_trellis;
-
- /**
- * RC lookahead
- * Number of frames for frametype and ratecontrol lookahead
- * - encoding: Set by user
- * - decoding: unused
- */
- int rc_lookahead;
-
- /**
- * Constant rate factor maximum
- * With CRF encoding mode and VBV restrictions enabled, prevents quality from being worse
- * than crf_max, even if doing so would violate VBV restrictions.
- * - encoding: Set by user.
- * - decoding: unused
- */
- float crf_max;
-
- int log_level_offset;
-
-#if FF_API_FLAC_GLOBAL_OPTS
- /**
- * Determines which LPC analysis algorithm to use.
- * - encoding: Set by user
- * - decoding: unused
- */
- attribute_deprecated enum AVLPCType lpc_type;
-
- /**
- * Number of passes to use for Cholesky factorization during LPC analysis
- * - encoding: Set by user
- * - decoding: unused
- */
- attribute_deprecated int lpc_passes;
-#endif
-
- /**
- * Number of slices.
- * Indicates number of picture subdivisions. Used for parallelized
- * decoding.
- * - encoding: Set by user
- * - decoding: unused
- */
- int slices;
-
- /**
- * Header containing style information for text subtitles.
- * For SUBTITLE_ASS subtitle type, it should contain the whole ASS
- * [Script Info] and [V4+ Styles] section, plus the [Events] line and
- * the Format line following. It shouldn't include any Dialogue line.
- * - encoding: Set/allocated/freed by user (before avcodec_open())
- * - decoding: Set/allocated/freed by libavcodec (by avcodec_open())
- */
- uint8_t *subtitle_header;
- int subtitle_header_size;
-
- /**
- * Current packet as passed into the decoder, to avoid having
- * to pass the packet into every function. Currently only valid
- * inside lavc and get/release_buffer callbacks.
- * - decoding: set by avcodec_decode_*, read by get_buffer() for setting pkt_pts
- * - encoding: unused
- */
- AVPacket *pkt;
-
- /**
- * Whether this is a copy of the context which had init() called on it.
- * This is used by multithreading - shared tables and picture pointers
- * should be freed from the original context only.
- * - encoding: Set by libavcodec.
- * - decoding: Set by libavcodec.
- */
- int is_copy;
-
- /**
- * Which multithreading methods to use.
- * Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread,
- * so clients which cannot provide future frames should not use it.
- *
- * - encoding: Set by user, otherwise the default is used.
- * - decoding: Set by user, otherwise the default is used.
- */
- int thread_type;
-#define FF_THREAD_FRAME 1 //< Decode more than one frame at once
-#define FF_THREAD_SLICE 2 //< Decode more than one part of a single frame at once
-
- /**
- * Which multithreading methods are in use by the codec.
- * - encoding: Set by libavcodec.
- * - decoding: Set by libavcodec.
- */
- int active_thread_type;
-
- /**
- * Set by the client if its custom get_buffer() callback can be called
- * from another thread, which allows faster multithreaded decoding.
- * draw_horiz_band() will be called from other threads regardless of this setting.
- * Ignored if the default get_buffer() is used.
- * - encoding: Set by user.
- * - decoding: Set by user.
- */
- int thread_safe_callbacks;
-
- /**
- * VBV delay coded in the last frame (in periods of a 27 MHz clock).
- * Used for compliant TS muxing.
- * - encoding: Set by libavcodec.
- * - decoding: unused.
- */
- uint64_t vbv_delay;
-
- /**
- * Type of service that the audio stream conveys.
- * - encoding: Set by user.
- * - decoding: Set by libavcodec.
- */
- enum AVAudioServiceType audio_service_type;
-
- /**
- * Used to request a sample format from the decoder.
- * - encoding: unused.
- * - decoding: Set by user.
- */
- enum AVSampleFormat request_sample_fmt;
-} AVCodecContext;
-
-/**
- * AVProfile.
- */
-typedef struct AVProfile {
- int profile;
- const char *name; ///< short name for the profile
-} AVProfile;
-
-/**
- * AVCodec.
- */
-typedef struct AVCodec {
- /**
- * Name of the codec implementation.
- * The name is globally unique among encoders and among decoders (but an
- * encoder and a decoder can share the same name).
- * This is the primary way to find a codec from the user perspective.
- */
- const char *name;
- enum AVMediaType type;
- enum CodecID id;
- int priv_data_size;
- int (*init)(AVCodecContext *);
- int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
- int (*close)(AVCodecContext *);
- int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt);
- /**
- * Codec capabilities.
- * see CODEC_CAP_*
- */
- int capabilities;
- struct AVCodec *next;
- /**
- * Flush buffers.
- * Will be called when seeking
- */
- void (*flush)(AVCodecContext *);
- const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
- const enum PixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
- /**
- * Descriptive name for the codec, meant to be more human readable than name.
- * You should use the NULL_IF_CONFIG_SMALL() macro to define it.
- */
- const char *long_name;
- const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
- const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1
- const int64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0
- uint8_t max_lowres; ///< maximum value for lowres supported by the decoder
- const AVClass *priv_class; ///< AVClass for the private context
- const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
-
- /**
- * @name Frame-level threading support functions
- * @{
- */
- /**
- * If defined, called on thread contexts when they are created.
- * If the codec allocates writable tables in init(), re-allocate them here.
- * priv_data will be set to a copy of the original.
- */
- int (*init_thread_copy)(AVCodecContext *);
- /**
- * Copy necessary context variables from a previous thread context to the current one.
- * If not defined, the next thread will start automatically; otherwise, the codec
- * must call ff_thread_finish_setup().
- *
- * dst and src will (rarely) point to the same context, in which case memcpy should be skipped.
- */
- int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src);
- /** @} */
-} AVCodec;
-
-/**
- * AVHWAccel.
- */
-typedef struct AVHWAccel {
- /**
- * Name of the hardware accelerated codec.
- * The name is globally unique among encoders and among decoders (but an
- * encoder and a decoder can share the same name).
- */
- const char *name;
-
- /**
- * Type of codec implemented by the hardware accelerator.
- *
- * See AVMEDIA_TYPE_xxx
- */
- enum AVMediaType type;
-
- /**
- * Codec implemented by the hardware accelerator.
- *
- * See CODEC_ID_xxx
- */
- enum CodecID id;
-
- /**
- * Supported pixel format.
- *
- * Only hardware accelerated formats are supported here.
- */
- enum PixelFormat pix_fmt;
-
- /**
- * Hardware accelerated codec capabilities.
- * see FF_HWACCEL_CODEC_CAP_*
- */
- int capabilities;
-
- struct AVHWAccel *next;
-
- /**
- * Called at the beginning of each frame or field picture.
- *
- * Meaningful frame information (codec specific) is guaranteed to
- * be parsed at this point. This function is mandatory.
- *
- * Note that buf can be NULL along with buf_size set to 0.
- * Otherwise, this means the whole frame is available at this point.
- *
- * @param avctx the codec context
- * @param buf the frame data buffer base
- * @param buf_size the size of the frame in bytes
- * @return zero if successful, a negative value otherwise
- */
- int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
-
- /**
- * Callback for each slice.
- *
- * Meaningful slice information (codec specific) is guaranteed to
- * be parsed at this point. This function is mandatory.
- *
- * @param avctx the codec context
- * @param buf the slice data buffer base
- * @param buf_size the size of the slice in bytes
- * @return zero if successful, a negative value otherwise
- */
- int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
-
- /**
- * Called at the end of each frame or field picture.
- *
- * The whole picture is parsed at this point and can now be sent
- * to the hardware accelerator. This function is mandatory.
- *
- * @param avctx the codec context
- * @return zero if successful, a negative value otherwise
- */
- int (*end_frame)(AVCodecContext *avctx);
-
- /**
- * Size of HW accelerator private data.
- *
- * Private data is allocated with av_mallocz() before
- * AVCodecContext.get_buffer() and deallocated after
- * AVCodecContext.release_buffer().
- */
- int priv_data_size;
-} AVHWAccel;
-
-/**
- * four components are given, that's all.
- * the last component is alpha
- */
-typedef struct AVPicture {
- uint8_t *data[4];
- int linesize[4]; ///< number of bytes per line
-} AVPicture;
-
-#if FF_API_PALETTE_CONTROL
-/**
- * AVPaletteControl
- * This structure defines a method for communicating palette changes
- * between and demuxer and a decoder.
- *
- * @deprecated Use AVPacket to send palette changes instead.
- * This is totally broken.
- */
-#define AVPALETTE_SIZE 1024
-#define AVPALETTE_COUNT 256
-typedef struct AVPaletteControl {
-
- /* Demuxer sets this to 1 to indicate the palette has changed;
- * decoder resets to 0. */
- int palette_changed;
-
- /* 4-byte ARGB palette entries, stored in native byte order; note that
- * the individual palette components should be on a 8-bit scale; if
- * the palette data comes from an IBM VGA native format, the component
- * data is probably 6 bits in size and needs to be scaled. */
- unsigned int palette[AVPALETTE_COUNT];
-
-} AVPaletteControl attribute_deprecated;
-#endif
-
-enum AVSubtitleType {
- SUBTITLE_NONE,
-
- SUBTITLE_BITMAP, ///< A bitmap, pict will be set
-
- /**
- * Plain text, the text field must be set by the decoder and is
- * authoritative. ass and pict fields may contain approximations.
- */
- SUBTITLE_TEXT,
-
- /**
- * Formatted text, the ass field must be set by the decoder and is
- * authoritative. pict and text fields may contain approximations.
- */
- SUBTITLE_ASS,
-};
-
-typedef struct AVSubtitleRect {
- int x; ///< top left corner of pict, undefined when pict is not set
- int y; ///< top left corner of pict, undefined when pict is not set
- int w; ///< width of pict, undefined when pict is not set
- int h; ///< height of pict, undefined when pict is not set
- int nb_colors; ///< number of colors in pict, undefined when pict is not set
-
- /**
- * data+linesize for the bitmap of this subtitle.
- * can be set for text/ass as well once they where rendered
- */
- AVPicture pict;
- enum AVSubtitleType type;
-
- char *text; ///< 0 terminated plain UTF-8 text
-
- /**
- * 0 terminated ASS/SSA compatible event line.
- * The pressentation of this is unaffected by the other values in this
- * struct.
- */
- char *ass;
-} AVSubtitleRect;
-
-typedef struct AVSubtitle {
- uint16_t format; /* 0 = graphics */
- uint32_t start_display_time; /* relative to packet pts, in ms */
- uint32_t end_display_time; /* relative to packet pts, in ms */
- unsigned num_rects;
- AVSubtitleRect **rects;
- int64_t pts; ///< Same as packet pts, in AV_TIME_BASE
-} AVSubtitle;
-
-/* packet functions */
-
-/**
- * @deprecated use NULL instead
- */
-attribute_deprecated void av_destruct_packet_nofree(AVPacket *pkt);
-
-/**
- * Default packet destructor.
- */
-void av_destruct_packet(AVPacket *pkt);
-
-/**
- * Initialize optional fields of a packet with default values.
- *
- * @param pkt packet
- */
-void av_init_packet(AVPacket *pkt);
-
-/**
- * Allocate the payload of a packet and initialize its fields with
- * default values.
- *
- * @param pkt packet
- * @param size wanted payload size
- * @return 0 if OK, AVERROR_xxx otherwise
- */
-int av_new_packet(AVPacket *pkt, int size);
-
-/**
- * Reduce packet size, correctly zeroing padding
- *
- * @param pkt packet
- * @param size new size
- */
-void av_shrink_packet(AVPacket *pkt, int size);
-
-/**
- * Increase packet size, correctly zeroing padding
- *
- * @param pkt packet
- * @param grow_by number of bytes by which to increase the size of the packet
- */
-int av_grow_packet(AVPacket *pkt, int grow_by);
-
-/**
- * @warning This is a hack - the packet memory allocation stuff is broken. The
- * packet is allocated if it was not really allocated.
- */
-int av_dup_packet(AVPacket *pkt);
-
-/**
- * Free a packet.
- *
- * @param pkt packet to free
- */
-void av_free_packet(AVPacket *pkt);
-
-/**
- * Allocate new information of a packet.
- *
- * @param pkt packet
- * @param type side information type
- * @param size side information size
- * @return pointer to fresh allocated data or NULL otherwise
- */
-uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
- int size);
-
-/**
- * Get side information from packet.
- *
- * @param pkt packet
- * @param type desired side information type
- * @param size pointer for side information size to store (optional)
- * @return pointer to data if present or NULL otherwise
- */
-uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
- int *size);
-
-/* resample.c */
-
-struct ReSampleContext;
-struct AVResampleContext;
-
-typedef struct ReSampleContext ReSampleContext;
-
-/**
- * Initialize audio resampling context.
- *
- * @param output_channels number of output channels
- * @param input_channels number of input channels
- * @param output_rate output sample rate
- * @param input_rate input sample rate
- * @param sample_fmt_out requested output sample format
- * @param sample_fmt_in input sample format
- * @param filter_length length of each FIR filter in the filterbank relative to the cutoff frequency
- * @param log2_phase_count log2 of the number of entries in the polyphase filterbank
- * @param linear if 1 then the used FIR filter will be linearly interpolated
- between the 2 closest, if 0 the closest will be used
- * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
- * @return allocated ReSampleContext, NULL if error occured
- */
-ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
- int output_rate, int input_rate,
- enum AVSampleFormat sample_fmt_out,
- enum AVSampleFormat sample_fmt_in,
- int filter_length, int log2_phase_count,
- int linear, double cutoff);
-
-int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
-
-/**
- * Free resample context.
- *
- * @param s a non-NULL pointer to a resample context previously
- * created with av_audio_resample_init()
- */
-void audio_resample_close(ReSampleContext *s);
-
-
-/**
- * Initialize an audio resampler.
- * Note, if either rate is not an integer then simply scale both rates up so they are.
- * @param filter_length length of each FIR filter in the filterbank relative to the cutoff freq
- * @param log2_phase_count log2 of the number of entries in the polyphase filterbank
- * @param linear If 1 then the used FIR filter will be linearly interpolated
- between the 2 closest, if 0 the closest will be used
- * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
- */
-struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
-
-/**
- * Resample an array of samples using a previously configured context.
- * @param src an array of unconsumed samples
- * @param consumed the number of samples of src which have been consumed are returned here
- * @param src_size the number of unconsumed samples available
- * @param dst_size the amount of space in samples available in dst
- * @param update_ctx If this is 0 then the context will not be modified, that way several channels can be resampled with the same context.
- * @return the number of samples written in dst or -1 if an error occurred
- */
-int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
-
-
-/**
- * Compensate samplerate/timestamp drift. The compensation is done by changing
- * the resampler parameters, so no audible clicks or similar distortions occur
- * @param compensation_distance distance in output samples over which the compensation should be performed
- * @param sample_delta number of output samples which should be output less
- *
- * example: av_resample_compensate(c, 10, 500)
- * here instead of 510 samples only 500 samples would be output
- *
- * note, due to rounding the actual compensation might be slightly different,
- * especially if the compensation_distance is large and the in_rate used during init is small
- */
-void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
-void av_resample_close(struct AVResampleContext *c);
-
-/**
- * Allocate memory for a picture. Call avpicture_free() to free it.
- *
- * \see avpicture_fill()
- *
- * @param picture the picture to be filled in
- * @param pix_fmt the format of the picture
- * @param width the width of the picture
- * @param height the height of the picture
- * @return zero if successful, a negative value if not
- */
-int avpicture_alloc(AVPicture *picture, enum PixelFormat pix_fmt, int width, int height);
-
-/**
- * Free a picture previously allocated by avpicture_alloc().
- * The data buffer used by the AVPicture is freed, but the AVPicture structure
- * itself is not.
- *
- * @param picture the AVPicture to be freed
- */
-void avpicture_free(AVPicture *picture);
-
-/**
- * Fill in the AVPicture fields.
- * The fields of the given AVPicture are filled in by using the 'ptr' address
- * which points to the image data buffer. Depending on the specified picture
- * format, one or multiple image data pointers and line sizes will be set.
- * If a planar format is specified, several pointers will be set pointing to
- * the different picture planes and the line sizes of the different planes
- * will be stored in the lines_sizes array.
- * Call with ptr == NULL to get the required size for the ptr buffer.
- *
- * To allocate the buffer and fill in the AVPicture fields in one call,
- * use avpicture_alloc().
- *
- * @param picture AVPicture whose fields are to be filled in
- * @param ptr Buffer which will contain or contains the actual image data
- * @param pix_fmt The format in which the picture data is stored.
- * @param width the width of the image in pixels
- * @param height the height of the image in pixels
- * @return size of the image data in bytes
- */
-int avpicture_fill(AVPicture *picture, uint8_t *ptr,
- enum PixelFormat pix_fmt, int width, int height);
-
-/**
- * Copy pixel data from an AVPicture into a buffer.
- * The data is stored compactly, without any gaps for alignment or padding
- * which may be applied by avpicture_fill().
- *
- * \see avpicture_get_size()
- *
- * @param[in] src AVPicture containing image data
- * @param[in] pix_fmt The format in which the picture data is stored.
- * @param[in] width the width of the image in pixels.
- * @param[in] height the height of the image in pixels.
- * @param[out] dest A buffer into which picture data will be copied.
- * @param[in] dest_size The size of 'dest'.
- * @return The number of bytes written to dest, or a negative value (error code) on error.
- */
-int avpicture_layout(const AVPicture* src, enum PixelFormat pix_fmt, int width, int height,
- unsigned char *dest, int dest_size);
-
-/**
- * Calculate the size in bytes that a picture of the given width and height
- * would occupy if stored in the given picture format.
- * Note that this returns the size of a compact representation as generated
- * by avpicture_layout(), which can be smaller than the size required for e.g.
- * avpicture_fill().
- *
- * @param pix_fmt the given picture format
- * @param width the width of the image
- * @param height the height of the image
- * @return Image data size in bytes or -1 on error (e.g. too large dimensions).
- */
-int avpicture_get_size(enum PixelFormat pix_fmt, int width, int height);
-void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *v_shift);
-
-#if FF_API_GET_PIX_FMT_NAME
-/**
- * @deprecated Deprecated in favor of av_get_pix_fmt_name().
- */
-attribute_deprecated
-const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt);
-#endif
-
-void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
-
-/**
- * Return a value representing the fourCC code associated to the
- * pixel format pix_fmt, or 0 if no associated fourCC code can be
- * found.
- */
-unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat pix_fmt);
-
-/**
- * Put a string representing the codec tag codec_tag in buf.
- *
- * @param buf_size size in bytes of buf
- * @return the length of the string that would have been generated if
- * enough space had been available, excluding the trailing null
- */
-size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag);
-
-#define FF_LOSS_RESOLUTION 0x0001 /**< loss due to resolution change */
-#define FF_LOSS_DEPTH 0x0002 /**< loss due to color depth change */
-#define FF_LOSS_COLORSPACE 0x0004 /**< loss due to color space conversion */
-#define FF_LOSS_ALPHA 0x0008 /**< loss of alpha bits */
-#define FF_LOSS_COLORQUANT 0x0010 /**< loss due to color quantization */
-#define FF_LOSS_CHROMA 0x0020 /**< loss of chroma (e.g. RGB to gray conversion) */
-
-/**
- * Compute what kind of losses will occur when converting from one specific
- * pixel format to another.
- * When converting from one pixel format to another, information loss may occur.
- * For example, when converting from RGB24 to GRAY, the color information will
- * be lost. Similarly, other losses occur when converting from some formats to
- * other formats. These losses can involve loss of chroma, but also loss of
- * resolution, loss of color depth, loss due to the color space conversion, loss
- * of the alpha bits or loss due to color quantization.
- * avcodec_get_fix_fmt_loss() informs you about the various types of losses
- * which will occur when converting from one pixel format to another.
- *
- * @param[in] dst_pix_fmt destination pixel format
- * @param[in] src_pix_fmt source pixel format
- * @param[in] has_alpha Whether the source pixel format alpha channel is used.
- * @return Combination of flags informing you what kind of losses will occur.
- */
-int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_pix_fmt,
- int has_alpha);
-
-/**
- * Find the best pixel format to convert to given a certain source pixel
- * format. When converting from one pixel format to another, information loss
- * may occur. For example, when converting from RGB24 to GRAY, the color
- * information will be lost. Similarly, other losses occur when converting from
- * some formats to other formats. avcodec_find_best_pix_fmt() searches which of
- * the given pixel formats should be used to suffer the least amount of loss.
- * The pixel formats from which it chooses one, are determined by the
- * pix_fmt_mask parameter.
- *
- * @code
- * src_pix_fmt = PIX_FMT_YUV420P;
- * pix_fmt_mask = (1 << PIX_FMT_YUV422P) || (1 << PIX_FMT_RGB24);
- * dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss);
- * @endcode
- *
- * @param[in] pix_fmt_mask bitmask determining which pixel format to choose from
- * @param[in] src_pix_fmt source pixel format
- * @param[in] has_alpha Whether the source pixel format alpha channel is used.
- * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur.
- * @return The best pixel format to convert to or -1 if none was found.
- */
-enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt,
- int has_alpha, int *loss_ptr);
-
-#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
-#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
-
-/**
- * Tell if an image really has transparent alpha values.
- * @return ored mask of FF_ALPHA_xxx constants
- */
-int img_get_alpha_info(const AVPicture *src,
- enum PixelFormat pix_fmt, int width, int height);
-
-/* deinterlace a picture */
-/* deinterlace - if not supported return -1 */
-int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
- enum PixelFormat pix_fmt, int width, int height);
-
-/* external high level API */
-
-/**
- * If c is NULL, returns the first registered codec,
- * if c is non-NULL, returns the next registered codec after c,
- * or NULL if c is the last one.
- */
-AVCodec *av_codec_next(AVCodec *c);
-
-/**
- * Return the LIBAVCODEC_VERSION_INT constant.
- */
-unsigned avcodec_version(void);
-
-/**
- * Return the libavcodec build-time configuration.
- */
-const char *avcodec_configuration(void);
-
-/**
- * Return the libavcodec license.
- */
-const char *avcodec_license(void);
-
-/**
- * Initialize libavcodec.
- * If called more than once, does nothing.
- *
- * @warning This function must be called before any other libavcodec
- * function.
- *
- * @warning This function is not thread-safe.
- */
-void avcodec_init(void);
-
-/**
- * Register the codec codec and initialize libavcodec.
- *
- * @see avcodec_init(), avcodec_register_all()
- */
-void avcodec_register(AVCodec *codec);
-
-/**
- * Find a registered encoder with a matching codec ID.
- *
- * @param id CodecID of the requested encoder
- * @return An encoder if one was found, NULL otherwise.
- */
-AVCodec *avcodec_find_encoder(enum CodecID id);
-
-/**
- * Find a registered encoder with the specified name.
- *
- * @param name name of the requested encoder
- * @return An encoder if one was found, NULL otherwise.
- */
-AVCodec *avcodec_find_encoder_by_name(const char *name);
-
-/**
- * Find a registered decoder with a matching codec ID.
- *
- * @param id CodecID of the requested decoder
- * @return A decoder if one was found, NULL otherwise.
- */
-AVCodec *avcodec_find_decoder(enum CodecID id);
-
-/**
- * Find a registered decoder with the specified name.
- *
- * @param name name of the requested decoder
- * @return A decoder if one was found, NULL otherwise.
- */
-AVCodec *avcodec_find_decoder_by_name(const char *name);
-void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
-
-/**
- * Return a name for the specified profile, if available.
- *
- * @param codec the codec that is searched for the given profile
- * @param profile the profile value for which a name is requested
- * @return A name for the profile if found, NULL otherwise.
- */
-const char *av_get_profile_name(const AVCodec *codec, int profile);
-
-/**
- * Set the fields of the given AVCodecContext to default values.
- *
- * @param s The AVCodecContext of which the fields should be set to default values.
- */
-void avcodec_get_context_defaults(AVCodecContext *s);
-
-/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
- * we WILL change its arguments and name a few times! */
-void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType);
-
-/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
- * we WILL change its arguments and name a few times! */
-int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec);
-
-/**
- * Allocate an AVCodecContext and set its fields to default values. The
- * resulting struct can be deallocated by simply calling av_free().
- *
- * @return An AVCodecContext filled with default values or NULL on failure.
- * @see avcodec_get_context_defaults
- */
-AVCodecContext *avcodec_alloc_context(void);
-
-/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
- * we WILL change its arguments and name a few times! */
-AVCodecContext *avcodec_alloc_context2(enum AVMediaType);
-
-/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
- * we WILL change its arguments and name a few times! */
-AVCodecContext *avcodec_alloc_context3(AVCodec *codec);
-
-/**
- * Copy the settings of the source AVCodecContext into the destination
- * AVCodecContext. The resulting destination codec context will be
- * unopened, i.e. you are required to call avcodec_open() before you
- * can use this AVCodecContext to decode/encode video/audio data.
- *
- * @param dest target codec context, should be initialized with
- * avcodec_alloc_context(), but otherwise uninitialized
- * @param src source codec context
- * @return AVERROR() on error (e.g. memory allocation error), 0 on success
- */
-int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);
-
-/**
- * Set the fields of the given AVFrame to default values.
- *
- * @param pic The AVFrame of which the fields should be set to default values.
- */
-void avcodec_get_frame_defaults(AVFrame *pic);
-
-/**
- * Allocate an AVFrame and set its fields to default values. The resulting
- * struct can be deallocated by simply calling av_free().
- *
- * @return An AVFrame filled with default values or NULL on failure.
- * @see avcodec_get_frame_defaults
- */
-AVFrame *avcodec_alloc_frame(void);
-
-int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
-void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
-int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
-
-/**
- * Return the amount of padding in pixels which the get_buffer callback must
- * provide around the edge of the image for codecs which do not have the
- * CODEC_FLAG_EMU_EDGE flag.
- *
- * @return Required padding in pixels.
- */
-unsigned avcodec_get_edge_width(void);
-/**
- * Modify width and height values so that they will result in a memory
- * buffer that is acceptable for the codec if you do not use any horizontal
- * padding.
- *
- * May only be used if a codec with CODEC_CAP_DR1 has been opened.
- * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased
- * according to avcodec_get_edge_width() before.
- */
-void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
-/**
- * Modify width and height values so that they will result in a memory
- * buffer that is acceptable for the codec if you also ensure that all
- * line sizes are a multiple of the respective linesize_align[i].
- *
- * May only be used if a codec with CODEC_CAP_DR1 has been opened.
- * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased
- * according to avcodec_get_edge_width() before.
- */
-void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
- int linesize_align[4]);
-
-enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
-
-#if FF_API_THREAD_INIT
-/**
- * @deprecated Set s->thread_count before calling avcodec_open() instead of calling this.
- */
-attribute_deprecated
-int avcodec_thread_init(AVCodecContext *s, int thread_count);
-#endif
-
-int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size);
-int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count);
-//FIXME func typedef
-
-/**
- * Initialize the AVCodecContext to use the given AVCodec. Prior to using this
- * function the context has to be allocated.
- *
- * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(),
- * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for
- * retrieving a codec.
- *
- * @warning This function is not thread safe!
- *
- * @code
- * avcodec_register_all();
- * codec = avcodec_find_decoder(CODEC_ID_H264);
- * if (!codec)
- * exit(1);
- *
- * context = avcodec_alloc_context();
- *
- * if (avcodec_open(context, codec) < 0)
- * exit(1);
- * @endcode
- *
- * @param avctx The context which will be set up to use the given codec.
- * @param codec The codec to use within the context.
- * @return zero on success, a negative value on error
- * @see avcodec_alloc_context, avcodec_find_decoder, avcodec_find_encoder, avcodec_close
- */
-int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
-
-/**
- * Decode the audio frame of size avpkt->size from avpkt->data into samples.
- * Some decoders may support multiple frames in a single AVPacket, such
- * decoders would then just decode the first frame. In this case,
- * avcodec_decode_audio3 has to be called again with an AVPacket that contains
- * the remaining data in order to decode the second frame etc.
- * If no frame
- * could be outputted, frame_size_ptr is zero. Otherwise, it is the
- * decompressed frame size in bytes.
- *
- * @warning You must set frame_size_ptr to the allocated size of the
- * output buffer before calling avcodec_decode_audio3().
- *
- * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
- * the actual read bytes because some optimized bitstream readers read 32 or 64
- * bits at once and could read over the end.
- *
- * @warning The end of the input buffer avpkt->data should be set to 0 to ensure that
- * no overreading happens for damaged MPEG streams.
- *
- * @note You might have to align the input buffer avpkt->data and output buffer
- * samples. The alignment requirements depend on the CPU: On some CPUs it isn't
- * necessary at all, on others it won't work at all if not aligned and on others
- * it will work but it will have an impact on performance.
- *
- * In practice, avpkt->data should have 4 byte alignment at minimum and
- * samples should be 16 byte aligned unless the CPU doesn't need it
- * (AltiVec and SSE do).
- *
- * @param avctx the codec context
- * @param[out] samples the output buffer, sample type in avctx->sample_fmt
- * @param[in,out] frame_size_ptr the output buffer size in bytes
- * @param[in] avpkt The input AVPacket containing the input buffer.
- * You can create such packet with av_init_packet() and by then setting
- * data and size, some decoders might in addition need other fields.
- * All decoders are designed to use the least fields possible though.
- * @return On error a negative value is returned, otherwise the number of bytes
- * used or zero if no frame data was decompressed (used) from the input AVPacket.
- */
-int avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
- int *frame_size_ptr,
- AVPacket *avpkt);
-
-/**
- * Decode the video frame of size avpkt->size from avpkt->data into picture.
- * Some decoders may support multiple frames in a single AVPacket, such
- * decoders would then just decode the first frame.
- *
- * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
- * the actual read bytes because some optimized bitstream readers read 32 or 64
- * bits at once and could read over the end.
- *
- * @warning The end of the input buffer buf should be set to 0 to ensure that
- * no overreading happens for damaged MPEG streams.
- *
- * @note You might have to align the input buffer avpkt->data.
- * The alignment requirements depend on the CPU: on some CPUs it isn't
- * necessary at all, on others it won't work at all if not aligned and on others
- * it will work but it will have an impact on performance.
- *
- * In practice, avpkt->data should have 4 byte alignment at minimum.
- *
- * @note Some codecs have a delay between input and output, these need to be
- * fed with avpkt->data=NULL, avpkt->size=0 at the end to return the remaining frames.
- *
- * @param avctx the codec context
- * @param[out] picture The AVFrame in which the decoded video frame will be stored.
- * Use avcodec_alloc_frame to get an AVFrame, the codec will
- * allocate memory for the actual bitmap.
- * with default get/release_buffer(), the decoder frees/reuses the bitmap as it sees fit.
- * with overridden get/release_buffer() (needs CODEC_CAP_DR1) the user decides into what buffer the decoder
- * decodes and the decoder tells the user once it does not need the data anymore,
- * the user app can at this point free/reuse/keep the memory as it sees fit.
- *
- * @param[in] avpkt The input AVpacket containing the input buffer.
- * You can create such packet with av_init_packet() and by then setting
- * data and size, some decoders might in addition need other fields like
- * flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least
- * fields possible.
- * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero.
- * @return On error a negative value is returned, otherwise the number of bytes
- * used or zero if no frame could be decompressed.
- */
-int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
- int *got_picture_ptr,
- AVPacket *avpkt);
-
-/**
- * Decode a subtitle message.
- * Return a negative value on error, otherwise return the number of bytes used.
- * If no subtitle could be decompressed, got_sub_ptr is zero.
- * Otherwise, the subtitle is stored in *sub.
- * Note that CODEC_CAP_DR1 is not available for subtitle codecs. This is for
- * simplicity, because the performance difference is expect to be negligible
- * and reusing a get_buffer written for video codecs would probably perform badly
- * due to a potentially very different allocation pattern.
- *
- * @param avctx the codec context
- * @param[out] sub The AVSubtitle in which the decoded subtitle will be stored, must be
- freed with avsubtitle_free if *got_sub_ptr is set.
- * @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero.
- * @param[in] avpkt The input AVPacket containing the input buffer.
- */
-int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
- int *got_sub_ptr,
- AVPacket *avpkt);
-
-/**
- * Frees all allocated data in the given subtitle struct.
- *
- * @param sub AVSubtitle to free.
- */
-void avsubtitle_free(AVSubtitle *sub);
-
-int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
- int *data_size_ptr,
- uint8_t *buf, int buf_size);
-
-/**
- * Encode an audio frame from samples into buf.
- *
- * @note The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large.
- * However, for PCM audio the user will know how much space is needed
- * because it depends on the value passed in buf_size as described
- * below. In that case a lower value can be used.
- *
- * @param avctx the codec context
- * @param[out] buf the output buffer
- * @param[in] buf_size the output buffer size
- * @param[in] samples the input buffer containing the samples
- * The number of samples read from this buffer is frame_size*channels,
- * both of which are defined in avctx.
- * For PCM audio the number of samples read from samples is equal to
- * buf_size * input_sample_size / output_sample_size.
- * @return On error a negative value is returned, on success zero or the number
- * of bytes used to encode the data read from the input buffer.
- */
-int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
- const short *samples);
-
-/**
- * Encode a video frame from pict into buf.
- * The input picture should be
- * stored using a specific format, namely avctx.pix_fmt.
- *
- * @param avctx the codec context
- * @param[out] buf the output buffer for the bitstream of encoded frame
- * @param[in] buf_size the size of the output buffer in bytes
- * @param[in] pict the input picture to encode
- * @return On error a negative value is returned, on success zero or the number
- * of bytes used from the output buffer.
- */
-int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
- const AVFrame *pict);
-int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
- const AVSubtitle *sub);
-
-int avcodec_close(AVCodecContext *avctx);
-
-/**
- * Register all the codecs, parsers and bitstream filters which were enabled at
- * configuration time. If you do not call this function you can select exactly
- * which formats you want to support, by using the individual registration
- * functions.
- *
- * @see avcodec_register
- * @see av_register_codec_parser
- * @see av_register_bitstream_filter
- */
-void avcodec_register_all(void);
-
-/**
- * Flush buffers, should be called when seeking or when switching to a different stream.
- */
-void avcodec_flush_buffers(AVCodecContext *avctx);
-
-void avcodec_default_free_buffers(AVCodecContext *s);
-
-/* misc useful functions */
-
-#if FF_API_OLD_FF_PICT_TYPES
-/**
- * Return a single letter to describe the given picture type pict_type.
- *
- * @param[in] pict_type the picture type
- * @return A single character representing the picture type.
- * @deprecated Use av_get_picture_type_char() instead.
- */
-attribute_deprecated
-char av_get_pict_type_char(int pict_type);
-#endif
-
-/**
- * Return codec bits per sample.
- *
- * @param[in] codec_id the codec
- * @return Number of bits per sample or zero if unknown for the given codec.
- */
-int av_get_bits_per_sample(enum CodecID codec_id);
-
-#if FF_API_OLD_SAMPLE_FMT
-/**
- * @deprecated Use av_get_bytes_per_sample() instead.
- */
-attribute_deprecated
-int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt);
-#endif
-
-/* frame parsing */
-typedef struct AVCodecParserContext {
- void *priv_data;
- struct AVCodecParser *parser;
- int64_t frame_offset; /* offset of the current frame */
- int64_t cur_offset; /* current offset
- (incremented by each av_parser_parse()) */
- int64_t next_frame_offset; /* offset of the next frame */
- /* video info */
- int pict_type; /* XXX: Put it back in AVCodecContext. */
- /**
- * This field is used for proper frame duration computation in lavf.
- * It signals, how much longer the frame duration of the current frame
- * is compared to normal frame duration.
- *
- * frame_duration = (1 + repeat_pict) * time_base
- *
- * It is used by codecs like H.264 to display telecined material.
- */
- int repeat_pict; /* XXX: Put it back in AVCodecContext. */
- int64_t pts; /* pts of the current frame */
- int64_t dts; /* dts of the current frame */
-
- /* private data */
- int64_t last_pts;
- int64_t last_dts;
- int fetch_timestamp;
-
-#define AV_PARSER_PTS_NB 4
- int cur_frame_start_index;
- int64_t cur_frame_offset[AV_PARSER_PTS_NB];
- int64_t cur_frame_pts[AV_PARSER_PTS_NB];
- int64_t cur_frame_dts[AV_PARSER_PTS_NB];
-
- int flags;
-#define PARSER_FLAG_COMPLETE_FRAMES 0x0001
-#define PARSER_FLAG_ONCE 0x0002
-/// Set if the parser has a valid file offset
-#define PARSER_FLAG_FETCHED_OFFSET 0x0004
-
- int64_t offset; ///< byte offset from starting packet start
- int64_t cur_frame_end[AV_PARSER_PTS_NB];
-
- /*!
- * Set by parser to 1 for key frames and 0 for non-key frames.
- * It is initialized to -1, so if the parser doesn't set this flag,
- * old-style fallback using AV_PICTURE_TYPE_I picture type as key frames
- * will be used.
- */
- int key_frame;
-
- /**
- * Time difference in stream time base units from the pts of this
- * packet to the point at which the output from the decoder has converged
- * independent from the availability of previous frames. That is, the
- * frames are virtually identical no matter if decoding started from
- * the very first frame or from this keyframe.
- * Is AV_NOPTS_VALUE if unknown.
- * This field is not the display duration of the current frame.
- * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
- * set.
- *
- * The purpose of this field is to allow seeking in streams that have no
- * keyframes in the conventional sense. It corresponds to the
- * recovery point SEI in H.264 and match_time_delta in NUT. It is also
- * essential for some types of subtitle streams to ensure that all
- * subtitles are correctly displayed after seeking.
- */
- int64_t convergence_duration;
-
- // Timestamp generation support:
- /**
- * Synchronization point for start of timestamp generation.
- *
- * Set to >0 for sync point, 0 for no sync point and <0 for undefined
- * (default).
- *
- * For example, this corresponds to presence of H.264 buffering period
- * SEI message.
- */
- int dts_sync_point;
-
- /**
- * Offset of the current timestamp against last timestamp sync point in
- * units of AVCodecContext.time_base.
- *
- * Set to INT_MIN when dts_sync_point unused. Otherwise, it must
- * contain a valid timestamp offset.
- *
- * Note that the timestamp of sync point has usually a nonzero
- * dts_ref_dts_delta, which refers to the previous sync point. Offset of
- * the next frame after timestamp sync point will be usually 1.
- *
- * For example, this corresponds to H.264 cpb_removal_delay.
- */
- int dts_ref_dts_delta;
-
- /**
- * Presentation delay of current frame in units of AVCodecContext.time_base.
- *
- * Set to INT_MIN when dts_sync_point unused. Otherwise, it must
- * contain valid non-negative timestamp delta (presentation time of a frame
- * must not lie in the past).
- *
- * This delay represents the difference between decoding and presentation
- * time of the frame.
- *
- * For example, this corresponds to H.264 dpb_output_delay.
- */
- int pts_dts_delta;
-
- /**
- * Position of the packet in file.
- *
- * Analogous to cur_frame_pts/dts
- */
- int64_t cur_frame_pos[AV_PARSER_PTS_NB];
-
- /**
- * Byte position of currently parsed frame in stream.
- */
- int64_t pos;
-
- /**
- * Previous frame byte position.
- */
- int64_t last_pos;
-} AVCodecParserContext;
-
-typedef struct AVCodecParser {
- int codec_ids[5]; /* several codec IDs are permitted */
- int priv_data_size;
- int (*parser_init)(AVCodecParserContext *s);
- int (*parser_parse)(AVCodecParserContext *s,
- AVCodecContext *avctx,
- const uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size);
- void (*parser_close)(AVCodecParserContext *s);
- int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
- struct AVCodecParser *next;
-} AVCodecParser;
-
-AVCodecParser *av_parser_next(AVCodecParser *c);
-
-void av_register_codec_parser(AVCodecParser *parser);
-AVCodecParserContext *av_parser_init(int codec_id);
-
-/**
- * Parse a packet.
- *
- * @param s parser context.
- * @param avctx codec context.
- * @param poutbuf set to pointer to parsed buffer or NULL if not yet finished.
- * @param poutbuf_size set to size of parsed buffer or zero if not yet finished.
- * @param buf input buffer.
- * @param buf_size input length, to signal EOF, this should be 0 (so that the last frame can be output).
- * @param pts input presentation timestamp.
- * @param dts input decoding timestamp.
- * @param pos input byte position in stream.
- * @return the number of bytes of the input bitstream used.
- *
- * Example:
- * @code
- * while(in_len){
- * len = av_parser_parse2(myparser, AVCodecContext, &data, &size,
- * in_data, in_len,
- * pts, dts, pos);
- * in_data += len;
- * in_len -= len;
- *
- * if(size)
- * decode_frame(data, size);
- * }
- * @endcode
- */
-int av_parser_parse2(AVCodecParserContext *s,
- AVCodecContext *avctx,
- uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size,
- int64_t pts, int64_t dts,
- int64_t pos);
-
-int av_parser_change(AVCodecParserContext *s,
- AVCodecContext *avctx,
- uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size, int keyframe);
-void av_parser_close(AVCodecParserContext *s);
-
-
-typedef struct AVBitStreamFilterContext {
- void *priv_data;
- struct AVBitStreamFilter *filter;
- AVCodecParserContext *parser;
- struct AVBitStreamFilterContext *next;
-} AVBitStreamFilterContext;
-
-
-typedef struct AVBitStreamFilter {
- const char *name;
- int priv_data_size;
- int (*filter)(AVBitStreamFilterContext *bsfc,
- AVCodecContext *avctx, const char *args,
- uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size, int keyframe);
- void (*close)(AVBitStreamFilterContext *bsfc);
- struct AVBitStreamFilter *next;
-} AVBitStreamFilter;
-
-void av_register_bitstream_filter(AVBitStreamFilter *bsf);
-AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
-int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
- AVCodecContext *avctx, const char *args,
- uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size, int keyframe);
-void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
-
-AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f);
-
-/* memory */
-
-/**
- * Reallocate the given block if it is not large enough, otherwise do nothing.
- *
- * @see av_realloc
- */
-void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size);
-
-/**
- * Allocate a buffer, reusing the given one if large enough.
- *
- * Contrary to av_fast_realloc the current buffer contents might not be
- * preserved and on error the old buffer is freed, thus no special
- * handling to avoid memleaks is necessary.
- *
- * @param ptr pointer to pointer to already allocated buffer, overwritten with pointer to new buffer
- * @param size size of the buffer *ptr points to
- * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and
- * *size 0 if an error occurred.
- */
-void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size);
-
-/**
- * Copy image src to dst. Wraps av_picture_data_copy() above.
- */
-void av_picture_copy(AVPicture *dst, const AVPicture *src,
- enum PixelFormat pix_fmt, int width, int height);
-
-/**
- * Crop image top and left side.
- */
-int av_picture_crop(AVPicture *dst, const AVPicture *src,
- enum PixelFormat pix_fmt, int top_band, int left_band);
-
-/**
- * Pad image.
- */
-int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, enum PixelFormat pix_fmt,
- int padtop, int padbottom, int padleft, int padright, int *color);
-
-/**
- * Encode extradata length to a buffer. Used by xiph codecs.
- *
- * @param s buffer to write to; must be at least (v/255+1) bytes long
- * @param v size of extradata in bytes
- * @return number of bytes written to the buffer.
- */
-unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
-
-/**
- * Logs a generic warning message about a missing feature. This function is
- * intended to be used internally by Libav (libavcodec, libavformat, etc.)
- * only, and would normally not be used by applications.
- * @param[in] avc a pointer to an arbitrary struct of which the first field is
- * a pointer to an AVClass struct
- * @param[in] feature string containing the name of the missing feature
- * @param[in] want_sample indicates if samples are wanted which exhibit this feature.
- * If want_sample is non-zero, additional verbage will be added to the log
- * message which tells the user how to report samples to the development
- * mailing list.
- */
-void av_log_missing_feature(void *avc, const char *feature, int want_sample);
-
-/**
- * Log a generic warning message asking for a sample. This function is
- * intended to be used internally by Libav (libavcodec, libavformat, etc.)
- * only, and would normally not be used by applications.
- * @param[in] avc a pointer to an arbitrary struct of which the first field is
- * a pointer to an AVClass struct
- * @param[in] msg string containing an optional message, or NULL if no message
- */
-void av_log_ask_for_sample(void *avc, const char *msg, ...);
-
-/**
- * Register the hardware accelerator hwaccel.
- */
-void av_register_hwaccel(AVHWAccel *hwaccel);
-
-/**
- * If hwaccel is NULL, returns the first registered hardware accelerator,
- * if hwaccel is non-NULL, returns the next registered hardware accelerator
- * after hwaccel, or NULL if hwaccel is the last one.
- */
-AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel);
-
-
-/**
- * Lock operation used by lockmgr
- */
-enum AVLockOp {
- AV_LOCK_CREATE, ///< Create a mutex
- AV_LOCK_OBTAIN, ///< Lock the mutex
- AV_LOCK_RELEASE, ///< Unlock the mutex
- AV_LOCK_DESTROY, ///< Free mutex resources
-};
-
-/**
- * Register a user provided lock manager supporting the operations
- * specified by AVLockOp. mutex points to a (void *) where the
- * lockmgr should store/get a pointer to a user allocated mutex. It's
- * NULL upon AV_LOCK_CREATE and != NULL for all other ops.
- *
- * @param cb User defined callback. Note: Libav may invoke calls to this
- * callback during the call to av_lockmgr_register().
- * Thus, the application must be prepared to handle that.
- * If cb is set to NULL the lockmgr will be unregistered.
- * Also note that during unregistration the previously registered
- * lockmgr callback may also be invoked.
- */
-int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
-
-#endif /* AVCODEC_AVCODEC_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_AVFFT_H
-#define AVCODEC_AVFFT_H
-
-typedef float FFTSample;
-
-typedef struct FFTComplex {
- FFTSample re, im;
-} FFTComplex;
-
-typedef struct FFTContext FFTContext;
-
-/**
- * Set up a complex FFT.
- * @param nbits log2 of the length of the input array
- * @param inverse if 0 perform the forward transform, if 1 perform the inverse
- */
-FFTContext *av_fft_init(int nbits, int inverse);
-
-/**
- * Do the permutation needed BEFORE calling ff_fft_calc().
- */
-void av_fft_permute(FFTContext *s, FFTComplex *z);
-
-/**
- * Do a complex FFT with the parameters defined in av_fft_init(). The
- * input data must be permuted before. No 1.0/sqrt(n) normalization is done.
- */
-void av_fft_calc(FFTContext *s, FFTComplex *z);
-
-void av_fft_end(FFTContext *s);
-
-FFTContext *av_mdct_init(int nbits, int inverse, double scale);
-void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
-void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input);
-void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
-void av_mdct_end(FFTContext *s);
-
-/* Real Discrete Fourier Transform */
-
-enum RDFTransformType {
- DFT_R2C,
- IDFT_C2R,
- IDFT_R2C,
- DFT_C2R,
-};
-
-typedef struct RDFTContext RDFTContext;
-
-/**
- * Set up a real FFT.
- * @param nbits log2 of the length of the input array
- * @param trans the type of transform
- */
-RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans);
-void av_rdft_calc(RDFTContext *s, FFTSample *data);
-void av_rdft_end(RDFTContext *s);
-
-/* Discrete Cosine Transform */
-
-typedef struct DCTContext DCTContext;
-
-enum DCTTransformType {
- DCT_II = 0,
- DCT_III,
- DCT_I,
- DST_I,
-};
-
-/**
- * Set up DCT.
- * @param nbits size of the input array:
- * (1 << nbits) for DCT-II, DCT-III and DST-I
- * (1 << nbits) + 1 for DCT-I
- *
- * @note the first element of the input of DST-I is ignored
- */
-DCTContext *av_dct_init(int nbits, enum DCTTransformType type);
-void av_dct_calc(DCTContext *s, FFTSample *data);
-void av_dct_end (DCTContext *s);
-
-#endif /* AVCODEC_AVFFT_H */
+++ /dev/null
-/*
- * DXVA2 HW acceleration
- *
- * copyright (c) 2009 Laurent Aimar
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_DXVA_H
-#define AVCODEC_DXVA_H
-
-#include <stdint.h>
-
-#include <dxva2api.h>
-
-/**
- * This structure is used to provides the necessary configurations and data
- * to the DXVA2 Libav HWAccel implementation.
- *
- * The application must make it available as AVCodecContext.hwaccel_context.
- */
-struct dxva_context {
- /**
- * DXVA2 decoder object
- */
- IDirectXVideoDecoder *decoder;
-
- /**
- * DXVA2 configuration used to create the decoder
- */
- const DXVA2_ConfigPictureDecode *cfg;
-
- /**
- * The number of surface in the surface array
- */
- unsigned surface_count;
-
- /**
- * The array of Direct3D surfaces used to create the decoder
- */
- LPDIRECT3DSURFACE9 *surface;
-
- /**
- * A bit field configuring the workarounds needed for using the decoder
- */
- uint64_t workaround;
-
- /**
- * Private to the Libav AVHWAccel implementation
- */
- unsigned report_id;
-};
-
-#endif /* AVCODEC_DXVA_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * This header is provided for compatibility only and will be removed
- * on next major bump
- */
-
-#ifndef AVCODEC_OPT_H
-#define AVCODEC_OPT_H
-
-#include "libavcodec/version.h"
-
-#if FF_API_OPT_H
-#include "libavutil/opt.h"
-#endif
-
-#endif /* AVCODEC_OPT_H */
+++ /dev/null
-/*
- * Video Acceleration API (shared data between Libav and the video player)
- * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
- *
- * Copyright (C) 2008-2009 Splitted-Desktop Systems
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_VAAPI_H
-#define AVCODEC_VAAPI_H
-
-#include <stdint.h>
-
-/**
- * \defgroup VAAPI_Decoding VA API Decoding
- * \ingroup Decoder
- * @{
- */
-
-/**
- * This structure is used to share data between the Libav library and
- * the client video application.
- * This shall be zero-allocated and available as
- * AVCodecContext.hwaccel_context. All user members can be set once
- * during initialization or through each AVCodecContext.get_buffer()
- * function call. In any case, they must be valid prior to calling
- * decoding functions.
- */
-struct vaapi_context {
- /**
- * Window system dependent data
- *
- * - encoding: unused
- * - decoding: Set by user
- */
- void *display;
-
- /**
- * Configuration ID
- *
- * - encoding: unused
- * - decoding: Set by user
- */
- uint32_t config_id;
-
- /**
- * Context ID (video decode pipeline)
- *
- * - encoding: unused
- * - decoding: Set by user
- */
- uint32_t context_id;
-
- /**
- * VAPictureParameterBuffer ID
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- uint32_t pic_param_buf_id;
-
- /**
- * VAIQMatrixBuffer ID
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- uint32_t iq_matrix_buf_id;
-
- /**
- * VABitPlaneBuffer ID (for VC-1 decoding)
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- uint32_t bitplane_buf_id;
-
- /**
- * Slice parameter/data buffer IDs
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- uint32_t *slice_buf_ids;
-
- /**
- * Number of effective slice buffer IDs to send to the HW
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- unsigned int n_slice_buf_ids;
-
- /**
- * Size of pre-allocated slice_buf_ids
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- unsigned int slice_buf_ids_alloc;
-
- /**
- * Pointer to VASliceParameterBuffers
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- void *slice_params;
-
- /**
- * Size of a VASliceParameterBuffer element
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- unsigned int slice_param_size;
-
- /**
- * Size of pre-allocated slice_params
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- unsigned int slice_params_alloc;
-
- /**
- * Number of slices currently filled in
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- unsigned int slice_count;
-
- /**
- * Pointer to slice data buffer base
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- const uint8_t *slice_data;
-
- /**
- * Current size of slice data
- *
- * - encoding: unused
- * - decoding: Set by libavcodec
- */
- uint32_t slice_data_size;
-};
-
-/* @} */
-
-#endif /* AVCODEC_VAAPI_H */
+++ /dev/null
-/*
- * The Video Decode and Presentation API for UNIX (VDPAU) is used for
- * hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1.
- *
- * Copyright (C) 2008 NVIDIA
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_VDPAU_H
-#define AVCODEC_VDPAU_H
-
-/**
- * \defgroup Decoder VDPAU Decoder and Renderer
- *
- * VDPAU hardware acceleration has two modules
- * - VDPAU decoding
- * - VDPAU presentation
- *
- * The VDPAU decoding module parses all headers using Libav
- * parsing mechanisms and uses VDPAU for the actual decoding.
- *
- * As per the current implementation, the actual decoding
- * and rendering (API calls) are done as part of the VDPAU
- * presentation (vo_vdpau.c) module.
- *
- * \defgroup VDPAU_Decoding VDPAU Decoding
- * \ingroup Decoder
- * @{
- */
-
-#include <vdpau/vdpau.h>
-#include <vdpau/vdpau_x11.h>
-
-/** \brief The videoSurface is used for rendering. */
-#define FF_VDPAU_STATE_USED_FOR_RENDER 1
-
-/**
- * \brief The videoSurface is needed for reference/prediction.
- * The codec manipulates this.
- */
-#define FF_VDPAU_STATE_USED_FOR_REFERENCE 2
-
-/**
- * \brief This structure is used as a callback between the Libav
- * decoder (vd_) and presentation (vo_) module.
- * This is used for defining a video frame containing surface,
- * picture parameter, bitstream information etc which are passed
- * between the Libav decoder and its clients.
- */
-struct vdpau_render_state {
- VdpVideoSurface surface; ///< Used as rendered surface, never changed.
-
- int state; ///< Holds FF_VDPAU_STATE_* values.
-
- /** picture parameter information for all supported codecs */
- union VdpPictureInfo {
- VdpPictureInfoH264 h264;
- VdpPictureInfoMPEG1Or2 mpeg;
- VdpPictureInfoVC1 vc1;
- VdpPictureInfoMPEG4Part2 mpeg4;
- } info;
-
- /** Describe size/location of the compressed video data.
- Set to 0 when freeing bitstream_buffers. */
- int bitstream_buffers_allocated;
- int bitstream_buffers_used;
- /** The user is responsible for freeing this buffer using av_freep(). */
- VdpBitstreamBuffer *bitstream_buffers;
-};
-
-/* @}*/
-
-#endif /* AVCODEC_VDPAU_H */
+++ /dev/null
-/*
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_VERSION_H
-#define AVCODEC_VERSION_H
-
-#define LIBAVCODEC_VERSION_MAJOR 53
-#define LIBAVCODEC_VERSION_MINOR 5
-#define LIBAVCODEC_VERSION_MICRO 0
-
-#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
- LIBAVCODEC_VERSION_MINOR, \
- LIBAVCODEC_VERSION_MICRO)
-#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \
- LIBAVCODEC_VERSION_MINOR, \
- LIBAVCODEC_VERSION_MICRO)
-#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
-
-#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
-
-/**
- * Those FF_API_* defines are not part of public API.
- * They may change, break or disappear at any time.
- */
-#ifndef FF_API_PALETTE_CONTROL
-#define FF_API_PALETTE_CONTROL (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_OLD_SAMPLE_FMT
-#define FF_API_OLD_SAMPLE_FMT (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_OLD_AUDIOCONVERT
-#define FF_API_OLD_AUDIOCONVERT (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_ANTIALIAS_ALGO
-#define FF_API_ANTIALIAS_ALGO (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_REQUEST_CHANNELS
-#define FF_API_REQUEST_CHANNELS (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_OPT_H
-#define FF_API_OPT_H (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_THREAD_INIT
-#define FF_API_THREAD_INIT (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_OLD_FF_PICT_TYPES
-#define FF_API_OLD_FF_PICT_TYPES (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_FLAC_GLOBAL_OPTS
-#define FF_API_FLAC_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_GET_PIX_FMT_NAME
-#define FF_API_GET_PIX_FMT_NAME (LIBAVCODEC_VERSION_MAJOR < 54)
-#endif
-
-#endif /* AVCODEC_VERSION_H */
+++ /dev/null
-/*
- * Copyright (C) 2003 Ivan Kalvachev
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_XVMC_H
-#define AVCODEC_XVMC_H
-
-#include <X11/extensions/XvMC.h>
-
-#include "avcodec.h"
-
-#define AV_XVMC_ID 0x1DC711C0 /**< special value to ensure that regular pixel routines haven't corrupted the struct
- the number is 1337 speak for the letters IDCT MCo (motion compensation) */
-
-struct xvmc_pix_fmt {
- /** The field contains the special constant value AV_XVMC_ID.
- It is used as a test that the application correctly uses the API,
- and that there is no corruption caused by pixel routines.
- - application - set during initialization
- - libavcodec - unchanged
- */
- int xvmc_id;
-
- /** Pointer to the block array allocated by XvMCCreateBlocks().
- The array has to be freed by XvMCDestroyBlocks().
- Each group of 64 values represents one data block of differential
- pixel information (in MoCo mode) or coefficients for IDCT.
- - application - set the pointer during initialization
- - libavcodec - fills coefficients/pixel data into the array
- */
- short* data_blocks;
-
- /** Pointer to the macroblock description array allocated by
- XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks().
- - application - set the pointer during initialization
- - libavcodec - fills description data into the array
- */
- XvMCMacroBlock* mv_blocks;
-
- /** Number of macroblock descriptions that can be stored in the mv_blocks
- array.
- - application - set during initialization
- - libavcodec - unchanged
- */
- int allocated_mv_blocks;
-
- /** Number of blocks that can be stored at once in the data_blocks array.
- - application - set during initialization
- - libavcodec - unchanged
- */
- int allocated_data_blocks;
-
- /** Indicate that the hardware would interpret data_blocks as IDCT
- coefficients and perform IDCT on them.
- - application - set during initialization
- - libavcodec - unchanged
- */
- int idct;
-
- /** In MoCo mode it indicates that intra macroblocks are assumed to be in
- unsigned format; same as the XVMC_INTRA_UNSIGNED flag.
- - application - set during initialization
- - libavcodec - unchanged
- */
- int unsigned_intra;
-
- /** Pointer to the surface allocated by XvMCCreateSurface().
- It has to be freed by XvMCDestroySurface() on application exit.
- It identifies the frame and its state on the video hardware.
- - application - set during initialization
- - libavcodec - unchanged
- */
- XvMCSurface* p_surface;
-
-/** Set by the decoder before calling ff_draw_horiz_band(),
- needed by the XvMCRenderSurface function. */
-//@{
- /** Pointer to the surface used as past reference
- - application - unchanged
- - libavcodec - set
- */
- XvMCSurface* p_past_surface;
-
- /** Pointer to the surface used as future reference
- - application - unchanged
- - libavcodec - set
- */
- XvMCSurface* p_future_surface;
-
- /** top/bottom field or frame
- - application - unchanged
- - libavcodec - set
- */
- unsigned int picture_structure;
-
- /** XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
- - application - unchanged
- - libavcodec - set
- */
- unsigned int flags;
-//}@
-
- /** Number of macroblock descriptions in the mv_blocks array
- that have already been passed to the hardware.
- - application - zeroes it on get_buffer().
- A successful ff_draw_horiz_band() may increment it
- with filled_mb_block_num or zero both.
- - libavcodec - unchanged
- */
- int start_mv_blocks_num;
-
- /** Number of new macroblock descriptions in the mv_blocks array (after
- start_mv_blocks_num) that are filled by libavcodec and have to be
- passed to the hardware.
- - application - zeroes it on get_buffer() or after successful
- ff_draw_horiz_band().
- - libavcodec - increment with one of each stored MB
- */
- int filled_mv_blocks_num;
-
- /** Number of the the next free data block; one data block consists of
- 64 short values in the data_blocks array.
- All blocks before this one have already been claimed by placing their
- position into the corresponding block description structure field,
- that are part of the mv_blocks array.
- - application - zeroes it on get_buffer().
- A successful ff_draw_horiz_band() may zero it together
- with start_mb_blocks_num.
- - libavcodec - each decoded macroblock increases it by the number
- of coded blocks it contains.
- */
- int next_free_data_block_num;
-};
-
-#endif /* AVCODEC_XVMC_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVDEVICE_AVDEVICE_H
-#define AVDEVICE_AVDEVICE_H
-
-#include "libavutil/avutil.h"
-
-#define LIBAVDEVICE_VERSION_MAJOR 53
-#define LIBAVDEVICE_VERSION_MINOR 0
-#define LIBAVDEVICE_VERSION_MICRO 0
-
-#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
- LIBAVDEVICE_VERSION_MINOR, \
- LIBAVDEVICE_VERSION_MICRO)
-#define LIBAVDEVICE_VERSION AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \
- LIBAVDEVICE_VERSION_MINOR, \
- LIBAVDEVICE_VERSION_MICRO)
-#define LIBAVDEVICE_BUILD LIBAVDEVICE_VERSION_INT
-
-#ifndef FF_API_V4L
-#define FF_API_V4L (LIBAVDEVICE_VERSION_MAJOR < 54)
-#endif
-
-/**
- * Return the LIBAVDEVICE_VERSION_INT constant.
- */
-unsigned avdevice_version(void);
-
-/**
- * Return the libavdevice build-time configuration.
- */
-const char *avdevice_configuration(void);
-
-/**
- * Return the libavdevice license.
- */
-const char *avdevice_license(void);
-
-/**
- * Initialize libavdevice and register all the input and output devices.
- * @warning This function is not thread safe.
- */
-void avdevice_register_all(void);
-
-#endif /* AVDEVICE_AVDEVICE_H */
-
+++ /dev/null
-/*
- * filter layer
- * Copyright (c) 2007 Bobby Bingham
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVFILTER_AVFILTER_H
-#define AVFILTER_AVFILTER_H
-
-#include "libavutil/avutil.h"
-#include "libavutil/samplefmt.h"
-
-#define LIBAVFILTER_VERSION_MAJOR 2
-#define LIBAVFILTER_VERSION_MINOR 4
-#define LIBAVFILTER_VERSION_MICRO 0
-
-#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
- LIBAVFILTER_VERSION_MINOR, \
- LIBAVFILTER_VERSION_MICRO)
-#define LIBAVFILTER_VERSION AV_VERSION(LIBAVFILTER_VERSION_MAJOR, \
- LIBAVFILTER_VERSION_MINOR, \
- LIBAVFILTER_VERSION_MICRO)
-#define LIBAVFILTER_BUILD LIBAVFILTER_VERSION_INT
-
-#include <stddef.h>
-
-/**
- * Return the LIBAVFILTER_VERSION_INT constant.
- */
-unsigned avfilter_version(void);
-
-/**
- * Return the libavfilter build-time configuration.
- */
-const char *avfilter_configuration(void);
-
-/**
- * Return the libavfilter license.
- */
-const char *avfilter_license(void);
-
-
-typedef struct AVFilterContext AVFilterContext;
-typedef struct AVFilterLink AVFilterLink;
-typedef struct AVFilterPad AVFilterPad;
-
-/**
- * A reference-counted buffer data type used by the filter system. Filters
- * should not store pointers to this structure directly, but instead use the
- * AVFilterBufferRef structure below.
- */
-typedef struct AVFilterBuffer {
- uint8_t *data[8]; ///< buffer data for each plane/channel
- int linesize[8]; ///< number of bytes per line
-
- unsigned refcount; ///< number of references to this buffer
-
- /** private data to be used by a custom free function */
- void *priv;
- /**
- * A pointer to the function to deallocate this buffer if the default
- * function is not sufficient. This could, for example, add the memory
- * back into a memory pool to be reused later without the overhead of
- * reallocating it from scratch.
- */
- void (*free)(struct AVFilterBuffer *buf);
-
- int format; ///< media format
- int w, h; ///< width and height of the allocated buffer
-} AVFilterBuffer;
-
-#define AV_PERM_READ 0x01 ///< can read from the buffer
-#define AV_PERM_WRITE 0x02 ///< can write to the buffer
-#define AV_PERM_PRESERVE 0x04 ///< nobody else can overwrite the buffer
-#define AV_PERM_REUSE 0x08 ///< can output the buffer multiple times, with the same contents each time
-#define AV_PERM_REUSE2 0x10 ///< can output the buffer multiple times, modified each time
-#define AV_PERM_NEG_LINESIZES 0x20 ///< the buffer requested can have negative linesizes
-
-/**
- * Audio specific properties in a reference to an AVFilterBuffer. Since
- * AVFilterBufferRef is common to different media formats, audio specific
- * per reference properties must be separated out.
- */
-typedef struct AVFilterBufferRefAudioProps {
- int64_t channel_layout; ///< channel layout of audio buffer
- int nb_samples; ///< number of audio samples
- int size; ///< audio buffer size
- uint32_t sample_rate; ///< audio buffer sample rate
- int planar; ///< audio buffer - planar or packed
-} AVFilterBufferRefAudioProps;
-
-/**
- * Video specific properties in a reference to an AVFilterBuffer. Since
- * AVFilterBufferRef is common to different media formats, video specific
- * per reference properties must be separated out.
- */
-typedef struct AVFilterBufferRefVideoProps {
- int w; ///< image width
- int h; ///< image height
- AVRational pixel_aspect; ///< pixel aspect ratio
- int interlaced; ///< is frame interlaced
- int top_field_first; ///< field order
- enum AVPictureType pict_type; ///< picture type of the frame
- int key_frame; ///< 1 -> keyframe, 0-> not
-} AVFilterBufferRefVideoProps;
-
-/**
- * A reference to an AVFilterBuffer. Since filters can manipulate the origin of
- * a buffer to, for example, crop image without any memcpy, the buffer origin
- * and dimensions are per-reference properties. Linesize is also useful for
- * image flipping, frame to field filters, etc, and so is also per-reference.
- *
- * TODO: add anything necessary for frame reordering
- */
-typedef struct AVFilterBufferRef {
- AVFilterBuffer *buf; ///< the buffer that this is a reference to
- uint8_t *data[8]; ///< picture/audio data for each plane
- int linesize[8]; ///< number of bytes per line
- int format; ///< media format
-
- /**
- * presentation timestamp. The time unit may change during
- * filtering, as it is specified in the link and the filter code
- * may need to rescale the PTS accordingly.
- */
- int64_t pts;
- int64_t pos; ///< byte position in stream, -1 if unknown
-
- int perms; ///< permissions, see the AV_PERM_* flags
-
- enum AVMediaType type; ///< media type of buffer data
- AVFilterBufferRefVideoProps *video; ///< video buffer specific properties
- AVFilterBufferRefAudioProps *audio; ///< audio buffer specific properties
-} AVFilterBufferRef;
-
-/**
- * Copy properties of src to dst, without copying the actual data
- */
-static inline void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, AVFilterBufferRef *src)
-{
- // copy common properties
- dst->pts = src->pts;
- dst->pos = src->pos;
-
- switch (src->type) {
- case AVMEDIA_TYPE_VIDEO: *dst->video = *src->video; break;
- case AVMEDIA_TYPE_AUDIO: *dst->audio = *src->audio; break;
- }
-}
-
-/**
- * Add a new reference to a buffer.
- *
- * @param ref an existing reference to the buffer
- * @param pmask a bitmask containing the allowable permissions in the new
- * reference
- * @return a new reference to the buffer with the same properties as the
- * old, excluding any permissions denied by pmask
- */
-AVFilterBufferRef *avfilter_ref_buffer(AVFilterBufferRef *ref, int pmask);
-
-/**
- * Remove a reference to a buffer. If this is the last reference to the
- * buffer, the buffer itself is also automatically freed.
- *
- * @param ref reference to the buffer, may be NULL
- */
-void avfilter_unref_buffer(AVFilterBufferRef *ref);
-
-/**
- * A list of supported formats for one end of a filter link. This is used
- * during the format negotiation process to try to pick the best format to
- * use to minimize the number of necessary conversions. Each filter gives a
- * list of the formats supported by each input and output pad. The list
- * given for each pad need not be distinct - they may be references to the
- * same list of formats, as is often the case when a filter supports multiple
- * formats, but will always output the same format as it is given in input.
- *
- * In this way, a list of possible input formats and a list of possible
- * output formats are associated with each link. When a set of formats is
- * negotiated over a link, the input and output lists are merged to form a
- * new list containing only the common elements of each list. In the case
- * that there were no common elements, a format conversion is necessary.
- * Otherwise, the lists are merged, and all other links which reference
- * either of the format lists involved in the merge are also affected.
- *
- * For example, consider the filter chain:
- * filter (a) --> (b) filter (b) --> (c) filter
- *
- * where the letters in parenthesis indicate a list of formats supported on
- * the input or output of the link. Suppose the lists are as follows:
- * (a) = {A, B}
- * (b) = {A, B, C}
- * (c) = {B, C}
- *
- * First, the first link's lists are merged, yielding:
- * filter (a) --> (a) filter (a) --> (c) filter
- *
- * Notice that format list (b) now refers to the same list as filter list (a).
- * Next, the lists for the second link are merged, yielding:
- * filter (a) --> (a) filter (a) --> (a) filter
- *
- * where (a) = {B}.
- *
- * Unfortunately, when the format lists at the two ends of a link are merged,
- * we must ensure that all links which reference either pre-merge format list
- * get updated as well. Therefore, we have the format list structure store a
- * pointer to each of the pointers to itself.
- */
-typedef struct AVFilterFormats {
- unsigned format_count; ///< number of formats
- int *formats; ///< list of media formats
-
- unsigned refcount; ///< number of references to this list
- struct AVFilterFormats ***refs; ///< references to this list
-} AVFilterFormats;
-
-/**
- * Create a list of supported formats. This is intended for use in
- * AVFilter->query_formats().
- *
- * @param fmts list of media formats, terminated by -1
- * @return the format list, with no existing references
- */
-AVFilterFormats *avfilter_make_format_list(const int *fmts);
-
-/**
- * Add fmt to the list of media formats contained in *avff.
- * If *avff is NULL the function allocates the filter formats struct
- * and puts its pointer in *avff.
- *
- * @return a non negative value in case of success, or a negative
- * value corresponding to an AVERROR code in case of error
- */
-int avfilter_add_format(AVFilterFormats **avff, int fmt);
-
-/**
- * Return a list of all formats supported by Libav for the given media type.
- */
-AVFilterFormats *avfilter_all_formats(enum AVMediaType type);
-
-/**
- * Return a format list which contains the intersection of the formats of
- * a and b. Also, all the references of a, all the references of b, and
- * a and b themselves will be deallocated.
- *
- * If a and b do not share any common formats, neither is modified, and NULL
- * is returned.
- */
-AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b);
-
-/**
- * Add *ref as a new reference to formats.
- * That is the pointers will point like in the ascii art below:
- * ________
- * |formats |<--------.
- * | ____ | ____|___________________
- * | |refs| | | __|_
- * | |* * | | | | | | AVFilterLink
- * | |* *--------->|*ref|
- * | |____| | | |____|
- * |________| |________________________
- */
-void avfilter_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref);
-
-/**
- * If *ref is non-NULL, remove *ref as a reference to the format list
- * it currently points to, deallocates that list if this was the last
- * reference, and sets *ref to NULL.
- *
- * Before After
- * ________ ________ NULL
- * |formats |<--------. |formats | ^
- * | ____ | ____|________________ | ____ | ____|________________
- * | |refs| | | __|_ | |refs| | | __|_
- * | |* * | | | | | | AVFilterLink | |* * | | | | | | AVFilterLink
- * | |* *--------->|*ref| | |* | | | |*ref|
- * | |____| | | |____| | |____| | | |____|
- * |________| |_____________________ |________| |_____________________
- */
-void avfilter_formats_unref(AVFilterFormats **ref);
-
-/**
- *
- * Before After
- * ________ ________
- * |formats |<---------. |formats |<---------.
- * | ____ | ___|___ | ____ | ___|___
- * | |refs| | | | | | |refs| | | | | NULL
- * | |* *--------->|*oldref| | |* *--------->|*newref| ^
- * | |* * | | |_______| | |* * | | |_______| ___|___
- * | |____| | | |____| | | | |
- * |________| |________| |*oldref|
- * |_______|
- */
-void avfilter_formats_changeref(AVFilterFormats **oldref,
- AVFilterFormats **newref);
-
-/**
- * A filter pad used for either input or output.
- */
-struct AVFilterPad {
- /**
- * Pad name. The name is unique among inputs and among outputs, but an
- * input may have the same name as an output. This may be NULL if this
- * pad has no need to ever be referenced by name.
- */
- const char *name;
-
- /**
- * AVFilterPad type. Only video supported now, hopefully someone will
- * add audio in the future.
- */
- enum AVMediaType type;
-
- /**
- * Minimum required permissions on incoming buffers. Any buffer with
- * insufficient permissions will be automatically copied by the filter
- * system to a new buffer which provides the needed access permissions.
- *
- * Input pads only.
- */
- int min_perms;
-
- /**
- * Permissions which are not accepted on incoming buffers. Any buffer
- * which has any of these permissions set will be automatically copied
- * by the filter system to a new buffer which does not have those
- * permissions. This can be used to easily disallow buffers with
- * AV_PERM_REUSE.
- *
- * Input pads only.
- */
- int rej_perms;
-
- /**
- * Callback called before passing the first slice of a new frame. If
- * NULL, the filter layer will default to storing a reference to the
- * picture inside the link structure.
- *
- * Input video pads only.
- */
- void (*start_frame)(AVFilterLink *link, AVFilterBufferRef *picref);
-
- /**
- * Callback function to get a video buffer. If NULL, the filter system will
- * use avfilter_default_get_video_buffer().
- *
- * Input video pads only.
- */
- AVFilterBufferRef *(*get_video_buffer)(AVFilterLink *link, int perms, int w, int h);
-
- /**
- * Callback function to get an audio buffer. If NULL, the filter system will
- * use avfilter_default_get_audio_buffer().
- *
- * Input audio pads only.
- */
- AVFilterBufferRef *(*get_audio_buffer)(AVFilterLink *link, int perms,
- enum AVSampleFormat sample_fmt, int size,
- int64_t channel_layout, int planar);
-
- /**
- * Callback called after the slices of a frame are completely sent. If
- * NULL, the filter layer will default to releasing the reference stored
- * in the link structure during start_frame().
- *
- * Input video pads only.
- */
- void (*end_frame)(AVFilterLink *link);
-
- /**
- * Slice drawing callback. This is where a filter receives video data
- * and should do its processing.
- *
- * Input video pads only.
- */
- void (*draw_slice)(AVFilterLink *link, int y, int height, int slice_dir);
-
- /**
- * Samples filtering callback. This is where a filter receives audio data
- * and should do its processing.
- *
- * Input audio pads only.
- */
- void (*filter_samples)(AVFilterLink *link, AVFilterBufferRef *samplesref);
-
- /**
- * Frame poll callback. This returns the number of immediately available
- * samples. It should return a positive value if the next request_frame()
- * is guaranteed to return one frame (with no delay).
- *
- * Defaults to just calling the source poll_frame() method.
- *
- * Output video pads only.
- */
- int (*poll_frame)(AVFilterLink *link);
-
- /**
- * Frame request callback. A call to this should result in at least one
- * frame being output over the given link. This should return zero on
- * success, and another value on error.
- *
- * Output video pads only.
- */
- int (*request_frame)(AVFilterLink *link);
-
- /**
- * Link configuration callback.
- *
- * For output pads, this should set the link properties such as
- * width/height. This should NOT set the format property - that is
- * negotiated between filters by the filter system using the
- * query_formats() callback before this function is called.
- *
- * For input pads, this should check the properties of the link, and update
- * the filter's internal state as necessary.
- *
- * For both input and output filters, this should return zero on success,
- * and another value on error.
- */
- int (*config_props)(AVFilterLink *link);
-};
-
-/** default handler for start_frame() for video inputs */
-void avfilter_default_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
-
-/** default handler for draw_slice() for video inputs */
-void avfilter_default_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
-
-/** default handler for end_frame() for video inputs */
-void avfilter_default_end_frame(AVFilterLink *link);
-
-/** default handler for filter_samples() for audio inputs */
-void avfilter_default_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref);
-
-/** default handler for config_props() for audio/video outputs */
-int avfilter_default_config_output_link(AVFilterLink *link);
-
-/** default handler for config_props() for audio/video inputs */
-int avfilter_default_config_input_link (AVFilterLink *link);
-
-/** default handler for get_video_buffer() for video inputs */
-AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link,
- int perms, int w, int h);
-
-/** default handler for get_audio_buffer() for audio inputs */
-AVFilterBufferRef *avfilter_default_get_audio_buffer(AVFilterLink *link, int perms,
- enum AVSampleFormat sample_fmt, int size,
- int64_t channel_layout, int planar);
-
-/**
- * A helper for query_formats() which sets all links to the same list of
- * formats. If there are no links hooked to this filter, the list of formats is
- * freed.
- */
-void avfilter_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats);
-
-/** Default handler for query_formats() */
-int avfilter_default_query_formats(AVFilterContext *ctx);
-
-/** start_frame() handler for filters which simply pass video along */
-void avfilter_null_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
-
-/** draw_slice() handler for filters which simply pass video along */
-void avfilter_null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
-
-/** end_frame() handler for filters which simply pass video along */
-void avfilter_null_end_frame(AVFilterLink *link);
-
-/** filter_samples() handler for filters which simply pass audio along */
-void avfilter_null_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref);
-
-/** get_video_buffer() handler for filters which simply pass video along */
-AVFilterBufferRef *avfilter_null_get_video_buffer(AVFilterLink *link,
- int perms, int w, int h);
-
-/** get_audio_buffer() handler for filters which simply pass audio along */
-AVFilterBufferRef *avfilter_null_get_audio_buffer(AVFilterLink *link, int perms,
- enum AVSampleFormat sample_fmt, int size,
- int64_t channel_layout, int planar);
-
-/**
- * Filter definition. This defines the pads a filter contains, and all the
- * callback functions used to interact with the filter.
- */
-typedef struct AVFilter {
- const char *name; ///< filter name
-
- int priv_size; ///< size of private data to allocate for the filter
-
- /**
- * Filter initialization function. Args contains the user-supplied
- * parameters. FIXME: maybe an AVOption-based system would be better?
- * opaque is data provided by the code requesting creation of the filter,
- * and is used to pass data to the filter.
- */
- int (*init)(AVFilterContext *ctx, const char *args, void *opaque);
-
- /**
- * Filter uninitialization function. Should deallocate any memory held
- * by the filter, release any buffer references, etc. This does not need
- * to deallocate the AVFilterContext->priv memory itself.
- */
- void (*uninit)(AVFilterContext *ctx);
-
- /**
- * Queries formats supported by the filter and its pads, and sets the
- * in_formats for links connected to its output pads, and out_formats
- * for links connected to its input pads.
- *
- * @return zero on success, a negative value corresponding to an
- * AVERROR code otherwise
- */
- int (*query_formats)(AVFilterContext *);
-
- const AVFilterPad *inputs; ///< NULL terminated list of inputs. NULL if none
- const AVFilterPad *outputs; ///< NULL terminated list of outputs. NULL if none
-
- /**
- * A description for the filter. You should use the
- * NULL_IF_CONFIG_SMALL() macro to define it.
- */
- const char *description;
-} AVFilter;
-
-/** An instance of a filter */
-struct AVFilterContext {
- const AVClass *av_class; ///< needed for av_log()
-
- AVFilter *filter; ///< the AVFilter of which this is an instance
-
- char *name; ///< name of this filter instance
-
- unsigned input_count; ///< number of input pads
- AVFilterPad *input_pads; ///< array of input pads
- AVFilterLink **inputs; ///< array of pointers to input links
-
- unsigned output_count; ///< number of output pads
- AVFilterPad *output_pads; ///< array of output pads
- AVFilterLink **outputs; ///< array of pointers to output links
-
- void *priv; ///< private data for use by the filter
-};
-
-/**
- * A link between two filters. This contains pointers to the source and
- * destination filters between which this link exists, and the indexes of
- * the pads involved. In addition, this link also contains the parameters
- * which have been negotiated and agreed upon between the filter, such as
- * image dimensions, format, etc.
- */
-struct AVFilterLink {
- AVFilterContext *src; ///< source filter
- AVFilterPad *srcpad; ///< output pad on the source filter
-
- AVFilterContext *dst; ///< dest filter
- AVFilterPad *dstpad; ///< input pad on the dest filter
-
- /** stage of the initialization of the link properties (dimensions, etc) */
- enum {
- AVLINK_UNINIT = 0, ///< not started
- AVLINK_STARTINIT, ///< started, but incomplete
- AVLINK_INIT ///< complete
- } init_state;
-
- enum AVMediaType type; ///< filter media type
-
- /* These parameters apply only to video */
- int w; ///< agreed upon image width
- int h; ///< agreed upon image height
- AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio
- /* These two parameters apply only to audio */
- int64_t channel_layout; ///< channel layout of current buffer (see libavutil/audioconvert.h)
- int64_t sample_rate; ///< samples per second
-
- int format; ///< agreed upon media format
-
- /**
- * Lists of formats supported by the input and output filters respectively.
- * These lists are used for negotiating the format to actually be used,
- * which will be loaded into the format member, above, when chosen.
- */
- AVFilterFormats *in_formats;
- AVFilterFormats *out_formats;
-
- /**
- * The buffer reference currently being sent across the link by the source
- * filter. This is used internally by the filter system to allow
- * automatic copying of buffers which do not have sufficient permissions
- * for the destination. This should not be accessed directly by the
- * filters.
- */
- AVFilterBufferRef *src_buf;
-
- AVFilterBufferRef *cur_buf;
- AVFilterBufferRef *out_buf;
-
- /**
- * Define the time base used by the PTS of the frames/samples
- * which will pass through this link.
- * During the configuration stage, each filter is supposed to
- * change only the output timebase, while the timebase of the
- * input link is assumed to be an unchangeable property.
- */
- AVRational time_base;
-};
-
-/**
- * Link two filters together.
- *
- * @param src the source filter
- * @param srcpad index of the output pad on the source filter
- * @param dst the destination filter
- * @param dstpad index of the input pad on the destination filter
- * @return zero on success
- */
-int avfilter_link(AVFilterContext *src, unsigned srcpad,
- AVFilterContext *dst, unsigned dstpad);
-
-/**
- * Negotiate the media format, dimensions, etc of all inputs to a filter.
- *
- * @param filter the filter to negotiate the properties for its inputs
- * @return zero on successful negotiation
- */
-int avfilter_config_links(AVFilterContext *filter);
-
-/**
- * Request a picture buffer with a specific set of permissions.
- *
- * @param link the output link to the filter from which the buffer will
- * be requested
- * @param perms the required access permissions
- * @param w the minimum width of the buffer to allocate
- * @param h the minimum height of the buffer to allocate
- * @return A reference to the buffer. This must be unreferenced with
- * avfilter_unref_buffer when you are finished with it.
- */
-AVFilterBufferRef *avfilter_get_video_buffer(AVFilterLink *link, int perms,
- int w, int h);
-
-/**
- * Create a buffer reference wrapped around an already allocated image
- * buffer.
- *
- * @param data pointers to the planes of the image to reference
- * @param linesize linesizes for the planes of the image to reference
- * @param perms the required access permissions
- * @param w the width of the image specified by the data and linesize arrays
- * @param h the height of the image specified by the data and linesize arrays
- * @param format the pixel format of the image specified by the data and linesize arrays
- */
-AVFilterBufferRef *
-avfilter_get_video_buffer_ref_from_arrays(uint8_t *data[4], int linesize[4], int perms,
- int w, int h, enum PixelFormat format);
-
-/**
- * Request an audio samples buffer with a specific set of permissions.
- *
- * @param link the output link to the filter from which the buffer will
- * be requested
- * @param perms the required access permissions
- * @param sample_fmt the format of each sample in the buffer to allocate
- * @param size the buffer size in bytes
- * @param channel_layout the number and type of channels per sample in the buffer to allocate
- * @param planar audio data layout - planar or packed
- * @return A reference to the samples. This must be unreferenced with
- * avfilter_unref_buffer when you are finished with it.
- */
-AVFilterBufferRef *avfilter_get_audio_buffer(AVFilterLink *link, int perms,
- enum AVSampleFormat sample_fmt, int size,
- int64_t channel_layout, int planar);
-
-/**
- * Request an input frame from the filter at the other end of the link.
- *
- * @param link the input link
- * @return zero on success
- */
-int avfilter_request_frame(AVFilterLink *link);
-
-/**
- * Poll a frame from the filter chain.
- *
- * @param link the input link
- * @return the number of immediately available frames, a negative
- * number in case of error
- */
-int avfilter_poll_frame(AVFilterLink *link);
-
-/**
- * Notifie the next filter of the start of a frame.
- *
- * @param link the output link the frame will be sent over
- * @param picref A reference to the frame about to be sent. The data for this
- * frame need only be valid once draw_slice() is called for that
- * portion. The receiving filter will free this reference when
- * it no longer needs it.
- */
-void avfilter_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
-
-/**
- * Notifie the next filter that the current frame has finished.
- *
- * @param link the output link the frame was sent over
- */
-void avfilter_end_frame(AVFilterLink *link);
-
-/**
- * Send a slice to the next filter.
- *
- * Slices have to be provided in sequential order, either in
- * top-bottom or bottom-top order. If slices are provided in
- * non-sequential order the behavior of the function is undefined.
- *
- * @param link the output link over which the frame is being sent
- * @param y offset in pixels from the top of the image for this slice
- * @param h height of this slice in pixels
- * @param slice_dir the assumed direction for sending slices,
- * from the top slice to the bottom slice if the value is 1,
- * from the bottom slice to the top slice if the value is -1,
- * for other values the behavior of the function is undefined.
- */
-void avfilter_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
-
-/**
- * Send a buffer of audio samples to the next filter.
- *
- * @param link the output link over which the audio samples are being sent
- * @param samplesref a reference to the buffer of audio samples being sent. The
- * receiving filter will free this reference when it no longer
- * needs it or pass it on to the next filter.
- */
-void avfilter_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref);
-
-/** Initialize the filter system. Register all builtin filters. */
-void avfilter_register_all(void);
-
-/** Uninitialize the filter system. Unregister all filters. */
-void avfilter_uninit(void);
-
-/**
- * Register a filter. This is only needed if you plan to use
- * avfilter_get_by_name later to lookup the AVFilter structure by name. A
- * filter can still by instantiated with avfilter_open even if it is not
- * registered.
- *
- * @param filter the filter to register
- * @return 0 if the registration was succesfull, a negative value
- * otherwise
- */
-int avfilter_register(AVFilter *filter);
-
-/**
- * Get a filter definition matching the given name.
- *
- * @param name the filter name to find
- * @return the filter definition, if any matching one is registered.
- * NULL if none found.
- */
-AVFilter *avfilter_get_by_name(const char *name);
-
-/**
- * If filter is NULL, returns a pointer to the first registered filter pointer,
- * if filter is non-NULL, returns the next pointer after filter.
- * If the returned pointer points to NULL, the last registered filter
- * was already reached.
- */
-AVFilter **av_filter_next(AVFilter **filter);
-
-/**
- * Create a filter instance.
- *
- * @param filter_ctx put here a pointer to the created filter context
- * on success, NULL on failure
- * @param filter the filter to create an instance of
- * @param inst_name Name to give to the new instance. Can be NULL for none.
- * @return >= 0 in case of success, a negative error code otherwise
- */
-int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
-
-/**
- * Initialize a filter.
- *
- * @param filter the filter to initialize
- * @param args A string of parameters to use when initializing the filter.
- * The format and meaning of this string varies by filter.
- * @param opaque Any extra non-string data needed by the filter. The meaning
- * of this parameter varies by filter.
- * @return zero on success
- */
-int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque);
-
-/**
- * Free a filter context.
- *
- * @param filter the filter to free
- */
-void avfilter_free(AVFilterContext *filter);
-
-/**
- * Insert a filter in the middle of an existing link.
- *
- * @param link the link into which the filter should be inserted
- * @param filt the filter to be inserted
- * @param filt_srcpad_idx the input pad on the filter to connect
- * @param filt_dstpad_idx the output pad on the filter to connect
- * @return zero on success
- */
-int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
- unsigned filt_srcpad_idx, unsigned filt_dstpad_idx);
-
-/**
- * Insert a new pad.
- *
- * @param idx Insertion point. Pad is inserted at the end if this point
- * is beyond the end of the list of pads.
- * @param count Pointer to the number of pads in the list
- * @param padidx_off Offset within an AVFilterLink structure to the element
- * to increment when inserting a new pad causes link
- * numbering to change
- * @param pads Pointer to the pointer to the beginning of the list of pads
- * @param links Pointer to the pointer to the beginning of the list of links
- * @param newpad The new pad to add. A copy is made when adding.
- */
-void avfilter_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
- AVFilterPad **pads, AVFilterLink ***links,
- AVFilterPad *newpad);
-
-/** Insert a new input pad for the filter. */
-static inline void avfilter_insert_inpad(AVFilterContext *f, unsigned index,
- AVFilterPad *p)
-{
- avfilter_insert_pad(index, &f->input_count, offsetof(AVFilterLink, dstpad),
- &f->input_pads, &f->inputs, p);
-}
-
-/** Insert a new output pad for the filter. */
-static inline void avfilter_insert_outpad(AVFilterContext *f, unsigned index,
- AVFilterPad *p)
-{
- avfilter_insert_pad(index, &f->output_count, offsetof(AVFilterLink, srcpad),
- &f->output_pads, &f->outputs, p);
-}
-
-#endif /* AVFILTER_AVFILTER_H */
+++ /dev/null
-/*
- * Filter graphs
- * copyright (c) 2007 Bobby Bingham
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVFILTER_AVFILTERGRAPH_H
-#define AVFILTER_AVFILTERGRAPH_H
-
-#include "avfilter.h"
-
-typedef struct AVFilterGraph {
- unsigned filter_count;
- AVFilterContext **filters;
-
- char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters
-} AVFilterGraph;
-
-/**
- * Allocate a filter graph.
- */
-AVFilterGraph *avfilter_graph_alloc(void);
-
-/**
- * Get a filter instance with name name from graph.
- *
- * @return the pointer to the found filter instance or NULL if it
- * cannot be found.
- */
-AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name);
-
-/**
- * Add an existing filter instance to a filter graph.
- *
- * @param graphctx the filter graph
- * @param filter the filter to be added
- */
-int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter);
-
-/**
- * Create and add a filter instance into an existing graph.
- * The filter instance is created from the filter filt and inited
- * with the parameters args and opaque.
- *
- * In case of success put in *filt_ctx the pointer to the created
- * filter instance, otherwise set *filt_ctx to NULL.
- *
- * @param name the instance name to give to the created filter instance
- * @param graph_ctx the filter graph
- * @return a negative AVERROR error code in case of failure, a non
- * negative value otherwise
- */
-int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt,
- const char *name, const char *args, void *opaque,
- AVFilterGraph *graph_ctx);
-
-/**
- * Check validity and configure all the links and formats in the graph.
- *
- * @param graphctx the filter graph
- * @param log_ctx context used for logging
- * @return 0 in case of success, a negative AVERROR code otherwise
- */
-int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx);
-
-/**
- * Free a graph, destroy its links, and set *graph to NULL.
- * If *graph is NULL, do nothing.
- */
-void avfilter_graph_free(AVFilterGraph **graph);
-
-/**
- * A linked-list of the inputs/outputs of the filter chain.
- *
- * This is mainly useful for avfilter_graph_parse(), since this
- * function may accept a description of a graph with not connected
- * input/output pads. This struct specifies, per each not connected
- * pad contained in the graph, the filter context and the pad index
- * required for establishing a link.
- */
-typedef struct AVFilterInOut {
- /** unique name for this input/output in the list */
- char *name;
-
- /** filter context associated to this input/output */
- AVFilterContext *filter_ctx;
-
- /** index of the filt_ctx pad to use for linking */
- int pad_idx;
-
- /** next input/input in the list, NULL if this is the last */
- struct AVFilterInOut *next;
-} AVFilterInOut;
-
-/**
- * Add a graph described by a string to a graph.
- *
- * @param graph the filter graph where to link the parsed graph context
- * @param filters string to be parsed
- * @param inputs linked list to the inputs of the graph
- * @param outputs linked list to the outputs of the graph
- * @return zero on success, a negative AVERROR code on error
- */
-int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
- AVFilterInOut *inputs, AVFilterInOut *outputs,
- AVClass *log_ctx);
-
-#endif /* AVFILTER_AVFILTERGRAPH_H */
+++ /dev/null
-/*
- * copyright (c) 2001 Fabrice Bellard
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVFORMAT_AVFORMAT_H
-#define AVFORMAT_AVFORMAT_H
-
-
-/**
- * Return the LIBAVFORMAT_VERSION_INT constant.
- */
-unsigned avformat_version(void);
-
-/**
- * Return the libavformat build-time configuration.
- */
-const char *avformat_configuration(void);
-
-/**
- * Return the libavformat license.
- */
-const char *avformat_license(void);
-
-#include <time.h>
-#include <stdio.h> /* FILE */
-#include "libavcodec/avcodec.h"
-#include "libavutil/dict.h"
-
-#include "avio.h"
-#include "libavformat/version.h"
-
-struct AVFormatContext;
-
-
-/**
- * @defgroup metadata_api Public Metadata API
- * @{
- * The metadata API allows libavformat to export metadata tags to a client
- * application using a sequence of key/value pairs. Like all strings in Libav,
- * metadata must be stored as UTF-8 encoded Unicode. Note that metadata
- * exported by demuxers isn't checked to be valid UTF-8 in most cases.
- * Important concepts to keep in mind:
- * - Keys are unique; there can never be 2 tags with the same key. This is
- * also meant semantically, i.e., a demuxer should not knowingly produce
- * several keys that are literally different but semantically identical.
- * E.g., key=Author5, key=Author6. In this example, all authors must be
- * placed in the same tag.
- * - Metadata is flat, not hierarchical; there are no subtags. If you
- * want to store, e.g., the email address of the child of producer Alice
- * and actor Bob, that could have key=alice_and_bobs_childs_email_address.
- * - Several modifiers can be applied to the tag name. This is done by
- * appending a dash character ('-') and the modifier name in the order
- * they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng.
- * - language -- a tag whose value is localized for a particular language
- * is appended with the ISO 639-2/B 3-letter language code.
- * For example: Author-ger=Michael, Author-eng=Mike
- * The original/default language is in the unqualified "Author" tag.
- * A demuxer should set a default if it sets any translated tag.
- * - sorting -- a modified version of a tag that should be used for
- * sorting will have '-sort' appended. E.g. artist="The Beatles",
- * artist-sort="Beatles, The".
- *
- * - Demuxers attempt to export metadata in a generic format, however tags
- * with no generic equivalents are left as they are stored in the container.
- * Follows a list of generic tag names:
- *
- @verbatim
- album -- name of the set this work belongs to
- album_artist -- main creator of the set/album, if different from artist.
- e.g. "Various Artists" for compilation albums.
- artist -- main creator of the work
- comment -- any additional description of the file.
- composer -- who composed the work, if different from artist.
- copyright -- name of copyright holder.
- creation_time-- date when the file was created, preferably in ISO 8601.
- date -- date when the work was created, preferably in ISO 8601.
- disc -- number of a subset, e.g. disc in a multi-disc collection.
- encoder -- name/settings of the software/hardware that produced the file.
- encoded_by -- person/group who created the file.
- filename -- original name of the file.
- genre -- <self-evident>.
- language -- main language in which the work is performed, preferably
- in ISO 639-2 format. Multiple languages can be specified by
- separating them with commas.
- performer -- artist who performed the work, if different from artist.
- E.g for "Also sprach Zarathustra", artist would be "Richard
- Strauss" and performer "London Philharmonic Orchestra".
- publisher -- name of the label/publisher.
- service_name -- name of the service in broadcasting (channel name).
- service_provider -- name of the service provider in broadcasting.
- title -- name of the work.
- track -- number of this work in the set, can be in form current/total.
- variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of
- @endverbatim
- *
- * Look in the examples section for an application example how to use the Metadata API.
- *
- * @}
- */
-
-#if FF_API_OLD_METADATA2
-/**
- * @defgroup old_metadata Old metadata API
- * The following functions are deprecated, use
- * their equivalents from libavutil/dict.h instead.
- * @{
- */
-
-#define AV_METADATA_MATCH_CASE AV_DICT_MATCH_CASE
-#define AV_METADATA_IGNORE_SUFFIX AV_DICT_IGNORE_SUFFIX
-#define AV_METADATA_DONT_STRDUP_KEY AV_DICT_DONT_STRDUP_KEY
-#define AV_METADATA_DONT_STRDUP_VAL AV_DICT_DONT_STRDUP_VAL
-#define AV_METADATA_DONT_OVERWRITE AV_DICT_DONT_OVERWRITE
-
-typedef attribute_deprecated AVDictionary AVMetadata;
-typedef attribute_deprecated AVDictionaryEntry AVMetadataTag;
-
-typedef struct AVMetadataConv AVMetadataConv;
-
-/**
- * Get a metadata element with matching key.
- *
- * @param prev Set to the previous matching element to find the next.
- * If set to NULL the first matching element is returned.
- * @param flags Allows case as well as suffix-insensitive comparisons.
- * @return Found tag or NULL, changing key or value leads to undefined behavior.
- */
-attribute_deprecated AVDictionaryEntry *
-av_metadata_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags);
-
-/**
- * Set the given tag in *pm, overwriting an existing tag.
- *
- * @param pm pointer to a pointer to a metadata struct. If *pm is NULL
- * a metadata struct is allocated and put in *pm.
- * @param key tag key to add to *pm (will be av_strduped depending on flags)
- * @param value tag value to add to *pm (will be av_strduped depending on flags).
- * Passing a NULL value will cause an existing tag to be deleted.
- * @return >= 0 on success otherwise an error code <0
- */
-attribute_deprecated int av_metadata_set2(AVDictionary **pm, const char *key, const char *value, int flags);
-
-/**
- * This function is provided for compatibility reason and currently does nothing.
- */
-attribute_deprecated void av_metadata_conv(struct AVFormatContext *ctx, const AVMetadataConv *d_conv,
- const AVMetadataConv *s_conv);
-
-/**
- * Copy metadata from one AVDictionary struct into another.
- * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL,
- * this function will allocate a struct for you and put it in *dst
- * @param src pointer to source AVDictionary struct
- * @param flags flags to use when setting metadata in *dst
- * @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag
- */
-attribute_deprecated void av_metadata_copy(AVDictionary **dst, AVDictionary *src, int flags);
-
-/**
- * Free all the memory allocated for an AVDictionary struct.
- */
-attribute_deprecated void av_metadata_free(AVDictionary **m);
-/**
- * @}
- */
-#endif
-
-
-/* packet functions */
-
-
-/**
- * Allocate and read the payload of a packet and initialize its
- * fields with default values.
- *
- * @param pkt packet
- * @param size desired payload size
- * @return >0 (read size) if OK, AVERROR_xxx otherwise
- */
-int av_get_packet(AVIOContext *s, AVPacket *pkt, int size);
-
-
-/**
- * Read data and append it to the current content of the AVPacket.
- * If pkt->size is 0 this is identical to av_get_packet.
- * Note that this uses av_grow_packet and thus involves a realloc
- * which is inefficient. Thus this function should only be used
- * when there is no reasonable way to know (an upper bound of)
- * the final size.
- *
- * @param pkt packet
- * @param size amount of data to read
- * @return >0 (read size) if OK, AVERROR_xxx otherwise, previous data
- * will not be lost even if an error occurs.
- */
-int av_append_packet(AVIOContext *s, AVPacket *pkt, int size);
-
-/*************************************************/
-/* fractional numbers for exact pts handling */
-
-/**
- * The exact value of the fractional number is: 'val + num / den'.
- * num is assumed to be 0 <= num < den.
- */
-typedef struct AVFrac {
- int64_t val, num, den;
-} AVFrac;
-
-/*************************************************/
-/* input/output formats */
-
-struct AVCodecTag;
-
-/**
- * This structure contains the data a format has to probe a file.
- */
-typedef struct AVProbeData {
- const char *filename;
- unsigned char *buf; /**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. */
- int buf_size; /**< Size of buf except extra allocated bytes */
-} AVProbeData;
-
-#define AVPROBE_SCORE_MAX 100 ///< maximum score, half of that is used for file-extension-based detection
-#define AVPROBE_PADDING_SIZE 32 ///< extra allocated bytes at the end of the probe buffer
-
-typedef struct AVFormatParameters {
-#if FF_API_FORMAT_PARAMETERS
- attribute_deprecated AVRational time_base;
- attribute_deprecated int sample_rate;
- attribute_deprecated int channels;
- attribute_deprecated int width;
- attribute_deprecated int height;
- attribute_deprecated enum PixelFormat pix_fmt;
- attribute_deprecated int channel; /**< Used to select DV channel. */
- attribute_deprecated const char *standard; /**< deprecated, use demuxer-specific options instead. */
- attribute_deprecated unsigned int mpeg2ts_raw:1; /**< deprecated, use mpegtsraw demuxer */
- /**< deprecated, use mpegtsraw demuxer-specific options instead */
- attribute_deprecated unsigned int mpeg2ts_compute_pcr:1;
- attribute_deprecated unsigned int initial_pause:1; /**< Do not begin to play the stream
- immediately (RTSP only). */
- attribute_deprecated unsigned int prealloced_context:1;
-#endif
-} AVFormatParameters;
-
-//! Demuxer will use avio_open, no opened file should be provided by the caller.
-#define AVFMT_NOFILE 0x0001
-#define AVFMT_NEEDNUMBER 0x0002 /**< Needs '%d' in filename. */
-#define AVFMT_SHOW_IDS 0x0008 /**< Show format stream IDs numbers. */
-#define AVFMT_RAWPICTURE 0x0020 /**< Format wants AVPicture structure for
- raw picture data. */
-#define AVFMT_GLOBALHEADER 0x0040 /**< Format wants global header. */
-#define AVFMT_NOTIMESTAMPS 0x0080 /**< Format does not need / have any timestamps. */
-#define AVFMT_GENERIC_INDEX 0x0100 /**< Use generic index building code. */
-#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. Note, muxers always require valid (monotone) timestamps */
-#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */
-#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */
-#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */
-#define AVFMT_NOBINSEARCH 0x2000 /**< Format does not allow to fallback to binary search via read_timestamp */
-#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fallback to generic search */
-
-typedef struct AVOutputFormat {
- const char *name;
- /**
- * Descriptive name for the format, meant to be more human-readable
- * than name. You should use the NULL_IF_CONFIG_SMALL() macro
- * to define it.
- */
- const char *long_name;
- const char *mime_type;
- const char *extensions; /**< comma-separated filename extensions */
- /**
- * size of private data so that it can be allocated in the wrapper
- */
- int priv_data_size;
- /* output support */
- enum CodecID audio_codec; /**< default audio codec */
- enum CodecID video_codec; /**< default video codec */
- int (*write_header)(struct AVFormatContext *);
- int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
- int (*write_trailer)(struct AVFormatContext *);
- /**
- * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_RAWPICTURE,
- * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS,
- * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS
- */
- int flags;
- /**
- * Currently only used to set pixel format if not YUV420P.
- */
- int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
- int (*interleave_packet)(struct AVFormatContext *, AVPacket *out,
- AVPacket *in, int flush);
-
- /**
- * List of supported codec_id-codec_tag pairs, ordered by "better
- * choice first". The arrays are all terminated by CODEC_ID_NONE.
- */
- const struct AVCodecTag * const *codec_tag;
-
- enum CodecID subtitle_codec; /**< default subtitle codec */
-
-#if FF_API_OLD_METADATA2
- const AVMetadataConv *metadata_conv;
-#endif
-
- const AVClass *priv_class; ///< AVClass for the private context
-
- /* private fields */
- struct AVOutputFormat *next;
-} AVOutputFormat;
-
-typedef struct AVInputFormat {
- /**
- * A comma separated list of short names for the format. New names
- * may be appended with a minor bump.
- */
- const char *name;
-
- /**
- * Descriptive name for the format, meant to be more human-readable
- * than name. You should use the NULL_IF_CONFIG_SMALL() macro
- * to define it.
- */
- const char *long_name;
-
- /**
- * Size of private data so that it can be allocated in the wrapper.
- */
- int priv_data_size;
-
- /**
- * Tell if a given file has a chance of being parsed as this format.
- * The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes
- * big so you do not have to check for that unless you need more.
- */
- int (*read_probe)(AVProbeData *);
-
- /**
- * Read the format header and initialize the AVFormatContext
- * structure. Return 0 if OK. 'ap' if non-NULL contains
- * additional parameters. Only used in raw format right
- * now. 'av_new_stream' should be called to create new streams.
- */
- int (*read_header)(struct AVFormatContext *,
- AVFormatParameters *ap);
-
- /**
- * Read one packet and put it in 'pkt'. pts and flags are also
- * set. 'av_new_stream' can be called only if the flag
- * AVFMTCTX_NOHEADER is used and only in the calling thread (not in a
- * background thread).
- * @return 0 on success, < 0 on error.
- * When returning an error, pkt must not have been allocated
- * or must be freed before returning
- */
- int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
-
- /**
- * Close the stream. The AVFormatContext and AVStreams are not
- * freed by this function
- */
- int (*read_close)(struct AVFormatContext *);
-
-#if FF_API_READ_SEEK
- /**
- * Seek to a given timestamp relative to the frames in
- * stream component stream_index.
- * @param stream_index Must not be -1.
- * @param flags Selects which direction should be preferred if no exact
- * match is available.
- * @return >= 0 on success (but not necessarily the new offset)
- */
- attribute_deprecated int (*read_seek)(struct AVFormatContext *,
- int stream_index, int64_t timestamp, int flags);
-#endif
- /**
- * Gets the next timestamp in stream[stream_index].time_base units.
- * @return the timestamp or AV_NOPTS_VALUE if an error occurred
- */
- int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
- int64_t *pos, int64_t pos_limit);
-
- /**
- * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER.
- */
- int flags;
-
- /**
- * If extensions are defined, then no probe is done. You should
- * usually not use extension format guessing because it is not
- * reliable enough
- */
- const char *extensions;
-
- /**
- * General purpose read-only value that the format can use.
- */
- int value;
-
- /**
- * Start/resume playing - only meaningful if using a network-based format
- * (RTSP).
- */
- int (*read_play)(struct AVFormatContext *);
-
- /**
- * Pause playing - only meaningful if using a network-based format
- * (RTSP).
- */
- int (*read_pause)(struct AVFormatContext *);
-
- const struct AVCodecTag * const *codec_tag;
-
- /**
- * Seek to timestamp ts.
- * Seeking will be done so that the point from which all active streams
- * can be presented successfully will be closest to ts and within min/max_ts.
- * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
- */
- int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
-
-#if FF_API_OLD_METADATA2
- const AVMetadataConv *metadata_conv;
-#endif
-
- const AVClass *priv_class; ///< AVClass for the private context
-
- /* private fields */
- struct AVInputFormat *next;
-} AVInputFormat;
-
-enum AVStreamParseType {
- AVSTREAM_PARSE_NONE,
- AVSTREAM_PARSE_FULL, /**< full parsing and repack */
- AVSTREAM_PARSE_HEADERS, /**< Only parse headers, do not repack. */
- AVSTREAM_PARSE_TIMESTAMPS, /**< full parsing and interpolation of timestamps for frames not starting on a packet boundary */
- AVSTREAM_PARSE_FULL_ONCE, /**< full parsing and repack of the first frame only, only implemented for H.264 currently */
-};
-
-typedef struct AVIndexEntry {
- int64_t pos;
- int64_t timestamp;
-#define AVINDEX_KEYFRAME 0x0001
- int flags:2;
- int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs. 32 bytes due to possible 8-byte alignment).
- int min_distance; /**< Minimum distance between this and the previous keyframe, used to avoid unneeded searching. */
-} AVIndexEntry;
-
-#define AV_DISPOSITION_DEFAULT 0x0001
-#define AV_DISPOSITION_DUB 0x0002
-#define AV_DISPOSITION_ORIGINAL 0x0004
-#define AV_DISPOSITION_COMMENT 0x0008
-#define AV_DISPOSITION_LYRICS 0x0010
-#define AV_DISPOSITION_KARAOKE 0x0020
-
-/**
- * Track should be used during playback by default.
- * Useful for subtitle track that should be displayed
- * even when user did not explicitly ask for subtitles.
- */
-#define AV_DISPOSITION_FORCED 0x0040
-#define AV_DISPOSITION_HEARING_IMPAIRED 0x0080 /**< stream for hearing impaired audiences */
-#define AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 /**< stream for visual impaired audiences */
-#define AV_DISPOSITION_CLEAN_EFFECTS 0x0200 /**< stream without voice */
-
-/**
- * Stream structure.
- * New fields can be added to the end with minor version bumps.
- * Removal, reordering and changes to existing fields require a major
- * version bump.
- * sizeof(AVStream) must not be used outside libav*.
- */
-typedef struct AVStream {
- int index; /**< stream index in AVFormatContext */
- int id; /**< format-specific stream ID */
- AVCodecContext *codec; /**< codec context */
- /**
- * Real base framerate of the stream.
- * This is the lowest framerate with which all timestamps can be
- * represented accurately (it is the least common multiple of all
- * framerates in the stream). Note, this value is just a guess!
- * For example, if the time base is 1/90000 and all frames have either
- * approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1.
- */
- AVRational r_frame_rate;
- void *priv_data;
-
- /* internal data used in av_find_stream_info() */
- int64_t first_dts;
-
- /**
- * encoding: pts generation when outputting stream
- */
- struct AVFrac pts;
-
- /**
- * This is the fundamental unit of time (in seconds) in terms
- * of which frame timestamps are represented. For fixed-fps content,
- * time base should be 1/framerate and timestamp increments should be 1.
- * decoding: set by libavformat
- * encoding: set by libavformat in av_write_header
- */
- AVRational time_base;
- int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */
- /* ffmpeg.c private use */
- int stream_copy; /**< If set, just copy stream. */
- enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed.
-
- //FIXME move stuff to a flags field?
- /**
- * Quality, as it has been removed from AVCodecContext and put in AVVideoFrame.
- * MN: dunno if that is the right place for it
- */
- float quality;
-
- /**
- * Decoding: pts of the first frame of the stream, in stream time base.
- * Only set this if you are absolutely 100% sure that the value you set
- * it to really is the pts of the first frame.
- * This may be undefined (AV_NOPTS_VALUE).
- */
- int64_t start_time;
-
- /**
- * Decoding: duration of the stream, in stream time base.
- * If a source file does not specify a duration, but does specify
- * a bitrate, this value will be estimated from bitrate and file size.
- */
- int64_t duration;
-
- /* av_read_frame() support */
- enum AVStreamParseType need_parsing;
- struct AVCodecParserContext *parser;
-
- int64_t cur_dts;
- int last_IP_duration;
- int64_t last_IP_pts;
- /* av_seek_frame() support */
- AVIndexEntry *index_entries; /**< Only used if the format does not
- support seeking natively. */
- int nb_index_entries;
- unsigned int index_entries_allocated_size;
-
- int64_t nb_frames; ///< number of frames in this stream if known or 0
-
- int disposition; /**< AV_DISPOSITION_* bit field */
-
- AVProbeData probe_data;
-#define MAX_REORDER_DELAY 16
- int64_t pts_buffer[MAX_REORDER_DELAY+1];
-
- /**
- * sample aspect ratio (0 if unknown)
- * - encoding: Set by user.
- * - decoding: Set by libavformat.
- */
- AVRational sample_aspect_ratio;
-
- AVDictionary *metadata;
-
- /* Intended mostly for av_read_frame() support. Not supposed to be used by */
- /* external applications; try to use something else if at all possible. */
- const uint8_t *cur_ptr;
- int cur_len;
- AVPacket cur_pkt;
-
- // Timestamp generation support:
- /**
- * Timestamp corresponding to the last dts sync point.
- *
- * Initialized when AVCodecParserContext.dts_sync_point >= 0 and
- * a DTS is received from the underlying container. Otherwise set to
- * AV_NOPTS_VALUE by default.
- */
- int64_t reference_dts;
-
- /**
- * Number of packets to buffer for codec probing
- * NOT PART OF PUBLIC API
- */
-#define MAX_PROBE_PACKETS 2500
- int probe_packets;
-
- /**
- * last packet in packet_buffer for this stream when muxing.
- * used internally, NOT PART OF PUBLIC API, dont read or write from outside of libav*
- */
- struct AVPacketList *last_in_packet_buffer;
-
- /**
- * Average framerate
- */
- AVRational avg_frame_rate;
-
- /**
- * Number of frames that have been demuxed during av_find_stream_info()
- */
- int codec_info_nb_frames;
-
- /**
- * Stream informations used internally by av_find_stream_info()
- */
-#define MAX_STD_TIMEBASES (60*12+5)
- struct {
- int64_t last_dts;
- int64_t duration_gcd;
- int duration_count;
- double duration_error[MAX_STD_TIMEBASES];
- int64_t codec_info_duration;
- } *info;
-} AVStream;
-
-#define AV_PROGRAM_RUNNING 1
-
-/**
- * New fields can be added to the end with minor version bumps.
- * Removal, reordering and changes to existing fields require a major
- * version bump.
- * sizeof(AVProgram) must not be used outside libav*.
- */
-typedef struct AVProgram {
- int id;
- int flags;
- enum AVDiscard discard; ///< selects which program to discard and which to feed to the caller
- unsigned int *stream_index;
- unsigned int nb_stream_indexes;
- AVDictionary *metadata;
-} AVProgram;
-
-#define AVFMTCTX_NOHEADER 0x0001 /**< signal that no header is present
- (streams are added dynamically) */
-
-typedef struct AVChapter {
- int id; ///< unique ID to identify the chapter
- AVRational time_base; ///< time base in which the start/end timestamps are specified
- int64_t start, end; ///< chapter start/end time in time_base units
- AVDictionary *metadata;
-} AVChapter;
-
-/**
- * Format I/O context.
- * New fields can be added to the end with minor version bumps.
- * Removal, reordering and changes to existing fields require a major
- * version bump.
- * sizeof(AVFormatContext) must not be used outside libav*.
- */
-typedef struct AVFormatContext {
- const AVClass *av_class; /**< Set by avformat_alloc_context. */
- /* Can only be iformat or oformat, not both at the same time. */
- struct AVInputFormat *iformat;
- struct AVOutputFormat *oformat;
- void *priv_data;
- AVIOContext *pb;
- unsigned int nb_streams;
- AVStream **streams;
- char filename[1024]; /**< input or output filename */
- /* stream info */
- int64_t timestamp;
-
- int ctx_flags; /**< Format-specific flags, see AVFMTCTX_xx */
- /* private data for pts handling (do not modify directly). */
- /**
- * This buffer is only needed when packets were already buffered but
- * not decoded, for example to get the codec parameters in MPEG
- * streams.
- */
- struct AVPacketList *packet_buffer;
-
- /**
- * Decoding: position of the first frame of the component, in
- * AV_TIME_BASE fractional seconds. NEVER set this value directly:
- * It is deduced from the AVStream values.
- */
- int64_t start_time;
-
- /**
- * Decoding: duration of the stream, in AV_TIME_BASE fractional
- * seconds. Only set this value if you know none of the individual stream
- * durations and also dont set any of them. This is deduced from the
- * AVStream values if not set.
- */
- int64_t duration;
-
- /**
- * decoding: total file size, 0 if unknown
- */
- int64_t file_size;
-
- /**
- * Decoding: total stream bitrate in bit/s, 0 if not
- * available. Never set it directly if the file_size and the
- * duration are known as Libav can compute it automatically.
- */
- int bit_rate;
-
- /* av_read_frame() support */
- AVStream *cur_st;
-
- /* av_seek_frame() support */
- int64_t data_offset; /**< offset of the first packet */
-
- int mux_rate;
- unsigned int packet_size;
- int preload;
- int max_delay;
-
-#define AVFMT_NOOUTPUTLOOP -1
-#define AVFMT_INFINITEOUTPUTLOOP 0
- /**
- * number of times to loop output in formats that support it
- */
- int loop_output;
-
- int flags;
-#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames.
-#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index.
-#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input.
-#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS
-#define AVFMT_FLAG_NOFILLIN 0x0010 ///< Do not infer any values from other values, just return what is stored in the container
-#define AVFMT_FLAG_NOPARSE 0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled
-#if FF_API_FLAG_RTP_HINT
-#define AVFMT_FLAG_RTP_HINT 0x0040 ///< Deprecated, use the -movflags rtphint muxer specific AVOption instead
-#endif
-#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it.
-
- int loop_input;
-
- /**
- * decoding: size of data to probe; encoding: unused.
- */
- unsigned int probesize;
-
- /**
- * Maximum time (in AV_TIME_BASE units) during which the input should
- * be analyzed in av_find_stream_info().
- */
- int max_analyze_duration;
-
- const uint8_t *key;
- int keylen;
-
- unsigned int nb_programs;
- AVProgram **programs;
-
- /**
- * Forced video codec_id.
- * Demuxing: Set by user.
- */
- enum CodecID video_codec_id;
-
- /**
- * Forced audio codec_id.
- * Demuxing: Set by user.
- */
- enum CodecID audio_codec_id;
-
- /**
- * Forced subtitle codec_id.
- * Demuxing: Set by user.
- */
- enum CodecID subtitle_codec_id;
-
- /**
- * Maximum amount of memory in bytes to use for the index of each stream.
- * If the index exceeds this size, entries will be discarded as
- * needed to maintain a smaller size. This can lead to slower or less
- * accurate seeking (depends on demuxer).
- * Demuxers for which a full in-memory index is mandatory will ignore
- * this.
- * muxing : unused
- * demuxing: set by user
- */
- unsigned int max_index_size;
-
- /**
- * Maximum amount of memory in bytes to use for buffering frames
- * obtained from realtime capture devices.
- */
- unsigned int max_picture_buffer;
-
- unsigned int nb_chapters;
- AVChapter **chapters;
-
- /**
- * Flags to enable debugging.
- */
- int debug;
-#define FF_FDEBUG_TS 0x0001
-
- /**
- * Raw packets from the demuxer, prior to parsing and decoding.
- * This buffer is used for buffering packets until the codec can
- * be identified, as parsing cannot be done without knowing the
- * codec.
- */
- struct AVPacketList *raw_packet_buffer;
- struct AVPacketList *raw_packet_buffer_end;
-
- struct AVPacketList *packet_buffer_end;
-
- AVDictionary *metadata;
-
- /**
- * Remaining size available for raw_packet_buffer, in bytes.
- * NOT PART OF PUBLIC API
- */
-#define RAW_PACKET_BUFFER_SIZE 2500000
- int raw_packet_buffer_remaining_size;
-
- /**
- * Start time of the stream in real world time, in microseconds
- * since the unix epoch (00:00 1st January 1970). That is, pts=0
- * in the stream was captured at this real world time.
- * - encoding: Set by user.
- * - decoding: Unused.
- */
- int64_t start_time_realtime;
-
- /**
- * decoding: number of frames used to probe fps
- */
- int fps_probe_size;
-} AVFormatContext;
-
-typedef struct AVPacketList {
- AVPacket pkt;
- struct AVPacketList *next;
-} AVPacketList;
-
-/**
- * If f is NULL, returns the first registered input format,
- * if f is non-NULL, returns the next registered input format after f
- * or NULL if f is the last one.
- */
-AVInputFormat *av_iformat_next(AVInputFormat *f);
-
-/**
- * If f is NULL, returns the first registered output format,
- * if f is non-NULL, returns the next registered output format after f
- * or NULL if f is the last one.
- */
-AVOutputFormat *av_oformat_next(AVOutputFormat *f);
-
-#if FF_API_GUESS_IMG2_CODEC
-attribute_deprecated enum CodecID av_guess_image2_codec(const char *filename);
-#endif
-
-/* XXX: Use automatic init with either ELF sections or C file parser */
-/* modules. */
-
-/* utils.c */
-void av_register_input_format(AVInputFormat *format);
-void av_register_output_format(AVOutputFormat *format);
-
-/**
- * Return the output format in the list of registered output formats
- * which best matches the provided parameters, or return NULL if
- * there is no match.
- *
- * @param short_name if non-NULL checks if short_name matches with the
- * names of the registered formats
- * @param filename if non-NULL checks if filename terminates with the
- * extensions of the registered formats
- * @param mime_type if non-NULL checks if mime_type matches with the
- * MIME type of the registered formats
- */
-AVOutputFormat *av_guess_format(const char *short_name,
- const char *filename,
- const char *mime_type);
-
-/**
- * Guess the codec ID based upon muxer and filename.
- */
-enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
- const char *filename, const char *mime_type,
- enum AVMediaType type);
-
-/**
- * Send a nice hexadecimal dump of a buffer to the specified file stream.
- *
- * @param f The file stream pointer where the dump should be sent to.
- * @param buf buffer
- * @param size buffer size
- *
- * @see av_hex_dump_log, av_pkt_dump2, av_pkt_dump_log2
- */
-void av_hex_dump(FILE *f, uint8_t *buf, int size);
-
-/**
- * Send a nice hexadecimal dump of a buffer to the log.
- *
- * @param avcl A pointer to an arbitrary struct of which the first field is a
- * pointer to an AVClass struct.
- * @param level The importance level of the message, lower values signifying
- * higher importance.
- * @param buf buffer
- * @param size buffer size
- *
- * @see av_hex_dump, av_pkt_dump2, av_pkt_dump_log2
- */
-void av_hex_dump_log(void *avcl, int level, uint8_t *buf, int size);
-
-/**
- * Send a nice dump of a packet to the specified file stream.
- *
- * @param f The file stream pointer where the dump should be sent to.
- * @param pkt packet to dump
- * @param dump_payload True if the payload must be displayed, too.
- * @param st AVStream that the packet belongs to
- */
-void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st);
-
-
-/**
- * Send a nice dump of a packet to the log.
- *
- * @param avcl A pointer to an arbitrary struct of which the first field is a
- * pointer to an AVClass struct.
- * @param level The importance level of the message, lower values signifying
- * higher importance.
- * @param pkt packet to dump
- * @param dump_payload True if the payload must be displayed, too.
- * @param st AVStream that the packet belongs to
- */
-void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload,
- AVStream *st);
-
-#if FF_API_PKT_DUMP
-attribute_deprecated void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
-attribute_deprecated void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt,
- int dump_payload);
-#endif
-
-/**
- * Initialize libavformat and register all the muxers, demuxers and
- * protocols. If you do not call this function, then you can select
- * exactly which formats you want to support.
- *
- * @see av_register_input_format()
- * @see av_register_output_format()
- * @see av_register_protocol()
- */
-void av_register_all(void);
-
-/**
- * Get the CodecID for the given codec tag tag.
- * If no codec id is found returns CODEC_ID_NONE.
- *
- * @param tags list of supported codec_id-codec_tag pairs, as stored
- * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
- */
-enum CodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag);
-
-/**
- * Get the codec tag for the given codec id id.
- * If no codec tag is found returns 0.
- *
- * @param tags list of supported codec_id-codec_tag pairs, as stored
- * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
- */
-unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum CodecID id);
-
-/* media file input */
-
-/**
- * Find AVInputFormat based on the short name of the input format.
- */
-AVInputFormat *av_find_input_format(const char *short_name);
-
-/**
- * Guess the file format.
- *
- * @param is_opened Whether the file is already opened; determines whether
- * demuxers with or without AVFMT_NOFILE are probed.
- */
-AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
-
-/**
- * Guess the file format.
- *
- * @param is_opened Whether the file is already opened; determines whether
- * demuxers with or without AVFMT_NOFILE are probed.
- * @param score_max A probe score larger that this is required to accept a
- * detection, the variable is set to the actual detection
- * score afterwards.
- * If the score is <= AVPROBE_SCORE_MAX / 4 it is recommended
- * to retry with a larger probe buffer.
- */
-AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max);
-
-/**
- * Probe a bytestream to determine the input format. Each time a probe returns
- * with a score that is too low, the probe buffer size is increased and another
- * attempt is made. When the maximum probe size is reached, the input format
- * with the highest score is returned.
- *
- * @param pb the bytestream to probe
- * @param fmt the input format is put here
- * @param filename the filename of the stream
- * @param logctx the log context
- * @param offset the offset within the bytestream to probe from
- * @param max_probe_size the maximum probe buffer size (zero for default)
- * @return 0 in case of success, a negative value corresponding to an
- * AVERROR code otherwise
- */
-int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
- const char *filename, void *logctx,
- unsigned int offset, unsigned int max_probe_size);
-
-#if FF_API_FORMAT_PARAMETERS
-/**
- * Allocate all the structures needed to read an input stream.
- * This does not open the needed codecs for decoding the stream[s].
- * @deprecated use avformat_open_input instead.
- */
-attribute_deprecated int av_open_input_stream(AVFormatContext **ic_ptr,
- AVIOContext *pb, const char *filename,
- AVInputFormat *fmt, AVFormatParameters *ap);
-
-/**
- * Open a media file as input. The codecs are not opened. Only the file
- * header (if present) is read.
- *
- * @param ic_ptr The opened media file handle is put here.
- * @param filename filename to open
- * @param fmt If non-NULL, force the file format to use.
- * @param buf_size optional buffer size (zero if default is OK)
- * @param ap Additional parameters needed when opening the file
- * (NULL if default).
- * @return 0 if OK, AVERROR_xxx otherwise
- *
- * @deprecated use avformat_open_input instead.
- */
-attribute_deprecated int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
- AVInputFormat *fmt,
- int buf_size,
- AVFormatParameters *ap);
-#endif
-
-/**
- * Open an input stream and read the header. The codecs are not opened.
- * The stream must be closed with av_close_input_file().
- *
- * @param ps Pointer to user-supplied AVFormatContext (allocated by avformat_alloc_context).
- * May be a pointer to NULL, in which case an AVFormatContext is allocated by this
- * function and written into ps.
- * Note that a user-supplied AVFormatContext will be freed on failure.
- * @param filename Name of the stream to open.
- * @param fmt If non-NULL, this parameter forces a specific input format.
- * Otherwise the format is autodetected.
- * @param options A dictionary filled with AVFormatContext and demuxer-private options.
- * On return this parameter will be destroyed and replaced with a dict containing
- * options that were not found. May be NULL.
- *
- * @return 0 on success, a negative AVERROR on failure.
- *
- * @note If you want to use custom IO, preallocate the format context and set its pb field.
- */
-int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options);
-
-/**
- * Allocate an AVFormatContext.
- * avformat_free_context() can be used to free the context and everything
- * allocated by the framework within it.
- */
-AVFormatContext *avformat_alloc_context(void);
-
-/**
- * Read packets of a media file to get stream information. This
- * is useful for file formats with no headers such as MPEG. This
- * function also computes the real framerate in case of MPEG-2 repeat
- * frame mode.
- * The logical file position is not changed by this function;
- * examined packets may be buffered for later processing.
- *
- * @param ic media file handle
- * @return >=0 if OK, AVERROR_xxx on error
- * @todo Let the user decide somehow what information is needed so that
- * we do not waste time getting stuff the user does not need.
- */
-int av_find_stream_info(AVFormatContext *ic);
-
-/**
- * Find the "best" stream in the file.
- * The best stream is determined according to various heuristics as the most
- * likely to be what the user expects.
- * If the decoder parameter is non-NULL, av_find_best_stream will find the
- * default decoder for the stream's codec; streams for which no decoder can
- * be found are ignored.
- *
- * @param ic media file handle
- * @param type stream type: video, audio, subtitles, etc.
- * @param wanted_stream_nb user-requested stream number,
- * or -1 for automatic selection
- * @param related_stream try to find a stream related (eg. in the same
- * program) to this one, or -1 if none
- * @param decoder_ret if non-NULL, returns the decoder for the
- * selected stream
- * @param flags flags; none are currently defined
- * @return the non-negative stream number in case of success,
- * AVERROR_STREAM_NOT_FOUND if no stream with the requested type
- * could be found,
- * AVERROR_DECODER_NOT_FOUND if streams were found but no decoder
- * @note If av_find_best_stream returns successfully and decoder_ret is not
- * NULL, then *decoder_ret is guaranteed to be set to a valid AVCodec.
- */
-int av_find_best_stream(AVFormatContext *ic,
- enum AVMediaType type,
- int wanted_stream_nb,
- int related_stream,
- AVCodec **decoder_ret,
- int flags);
-
-/**
- * Read a transport packet from a media file.
- *
- * This function is obsolete and should never be used.
- * Use av_read_frame() instead.
- *
- * @param s media file handle
- * @param pkt is filled
- * @return 0 if OK, AVERROR_xxx on error
- */
-int av_read_packet(AVFormatContext *s, AVPacket *pkt);
-
-/**
- * Return the next frame of a stream.
- * This function returns what is stored in the file, and does not validate
- * that what is there are valid frames for the decoder. It will split what is
- * stored in the file into frames and return one for each call. It will not
- * omit invalid data between valid frames so as to give the decoder the maximum
- * information possible for decoding.
- *
- * The returned packet is valid
- * until the next av_read_frame() or until av_close_input_file() and
- * must be freed with av_free_packet. For video, the packet contains
- * exactly one frame. For audio, it contains an integer number of
- * frames if each frame has a known fixed size (e.g. PCM or ADPCM
- * data). If the audio frames have a variable size (e.g. MPEG audio),
- * then it contains one frame.
- *
- * pkt->pts, pkt->dts and pkt->duration are always set to correct
- * values in AVStream.time_base units (and guessed if the format cannot
- * provide them). pkt->pts can be AV_NOPTS_VALUE if the video format
- * has B-frames, so it is better to rely on pkt->dts if you do not
- * decompress the payload.
- *
- * @return 0 if OK, < 0 on error or end of file
- */
-int av_read_frame(AVFormatContext *s, AVPacket *pkt);
-
-/**
- * Seek to the keyframe at timestamp.
- * 'timestamp' in 'stream_index'.
- * @param stream_index If stream_index is (-1), a default
- * stream is selected, and timestamp is automatically converted
- * from AV_TIME_BASE units to the stream specific time_base.
- * @param timestamp Timestamp in AVStream.time_base units
- * or, if no stream is specified, in AV_TIME_BASE units.
- * @param flags flags which select direction and seeking mode
- * @return >= 0 on success
- */
-int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp,
- int flags);
-
-/**
- * Seek to timestamp ts.
- * Seeking will be done so that the point from which all active streams
- * can be presented successfully will be closest to ts and within min/max_ts.
- * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
- *
- * If flags contain AVSEEK_FLAG_BYTE, then all timestamps are in bytes and
- * are the file position (this may not be supported by all demuxers).
- * If flags contain AVSEEK_FLAG_FRAME, then all timestamps are in frames
- * in the stream with stream_index (this may not be supported by all demuxers).
- * Otherwise all timestamps are in units of the stream selected by stream_index
- * or if stream_index is -1, in AV_TIME_BASE units.
- * If flags contain AVSEEK_FLAG_ANY, then non-keyframes are treated as
- * keyframes (this may not be supported by all demuxers).
- *
- * @param stream_index index of the stream which is used as time base reference
- * @param min_ts smallest acceptable timestamp
- * @param ts target timestamp
- * @param max_ts largest acceptable timestamp
- * @param flags flags
- * @return >=0 on success, error code otherwise
- *
- * @note This is part of the new seek API which is still under construction.
- * Thus do not use this yet. It may change at any time, do not expect
- * ABI compatibility yet!
- */
-int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
-
-/**
- * Start playing a network-based stream (e.g. RTSP stream) at the
- * current position.
- */
-int av_read_play(AVFormatContext *s);
-
-/**
- * Pause a network-based stream (e.g. RTSP stream).
- *
- * Use av_read_play() to resume it.
- */
-int av_read_pause(AVFormatContext *s);
-
-/**
- * Free a AVFormatContext allocated by av_open_input_stream.
- * @param s context to free
- */
-void av_close_input_stream(AVFormatContext *s);
-
-/**
- * Close a media file (but not its codecs).
- *
- * @param s media file handle
- */
-void av_close_input_file(AVFormatContext *s);
-
-/**
- * Free an AVFormatContext and all its streams.
- * @param s context to free
- */
-void avformat_free_context(AVFormatContext *s);
-
-/**
- * Add a new stream to a media file.
- *
- * Can only be called in the read_header() function. If the flag
- * AVFMTCTX_NOHEADER is in the format context, then new streams
- * can be added in read_packet too.
- *
- * @param s media file handle
- * @param id file-format-dependent stream ID
- */
-AVStream *av_new_stream(AVFormatContext *s, int id);
-AVProgram *av_new_program(AVFormatContext *s, int id);
-
-/**
- * Set the pts for a given stream. If the new values would be invalid
- * (<= 0), it leaves the AVStream unchanged.
- *
- * @param s stream
- * @param pts_wrap_bits number of bits effectively used by the pts
- * (used for wrap control, 33 is the value for MPEG)
- * @param pts_num numerator to convert to seconds (MPEG: 1)
- * @param pts_den denominator to convert to seconds (MPEG: 90000)
- */
-void av_set_pts_info(AVStream *s, int pts_wrap_bits,
- unsigned int pts_num, unsigned int pts_den);
-
-#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
-#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
-#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non-keyframes
-#define AVSEEK_FLAG_FRAME 8 ///< seeking based on frame number
-
-int av_find_default_stream_index(AVFormatContext *s);
-
-/**
- * Get the index for a specific timestamp.
- * @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond
- * to the timestamp which is <= the requested one, if backward
- * is 0, then it will be >=
- * if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise
- * @return < 0 if no such timestamp could be found
- */
-int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
-
-/**
- * Add an index entry into a sorted list. Update the entry if the list
- * already contains it.
- *
- * @param timestamp timestamp in the time base of the given stream
- */
-int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp,
- int size, int distance, int flags);
-
-/**
- * Perform a binary search using av_index_search_timestamp() and
- * AVInputFormat.read_timestamp().
- * This is not supposed to be called directly by a user application,
- * but by demuxers.
- * @param target_ts target timestamp in the time base of the given stream
- * @param stream_index stream number
- */
-int av_seek_frame_binary(AVFormatContext *s, int stream_index,
- int64_t target_ts, int flags);
-
-/**
- * Update cur_dts of all streams based on the given timestamp and AVStream.
- *
- * Stream ref_st unchanged, others set cur_dts in their native time base.
- * Only needed for timestamp wrapping or if (dts not set and pts!=dts).
- * @param timestamp new dts expressed in time_base of param ref_st
- * @param ref_st reference stream giving time_base of param timestamp
- */
-void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
-
-/**
- * Perform a binary search using read_timestamp().
- * This is not supposed to be called directly by a user application,
- * but by demuxers.
- * @param target_ts target timestamp in the time base of the given stream
- * @param stream_index stream number
- */
-int64_t av_gen_search(AVFormatContext *s, int stream_index,
- int64_t target_ts, int64_t pos_min,
- int64_t pos_max, int64_t pos_limit,
- int64_t ts_min, int64_t ts_max,
- int flags, int64_t *ts_ret,
- int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ));
-
-/**
- * media file output
- */
-#if FF_API_FORMAT_PARAMETERS
-/**
- * @deprecated pass the options to avformat_write_header directly.
- */
-attribute_deprecated int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
-#endif
-
-/**
- * Split a URL string into components.
- *
- * The pointers to buffers for storing individual components may be null,
- * in order to ignore that component. Buffers for components not found are
- * set to empty strings. If the port is not found, it is set to a negative
- * value.
- *
- * @param proto the buffer for the protocol
- * @param proto_size the size of the proto buffer
- * @param authorization the buffer for the authorization
- * @param authorization_size the size of the authorization buffer
- * @param hostname the buffer for the host name
- * @param hostname_size the size of the hostname buffer
- * @param port_ptr a pointer to store the port number in
- * @param path the buffer for the path
- * @param path_size the size of the path buffer
- * @param url the URL to split
- */
-void av_url_split(char *proto, int proto_size,
- char *authorization, int authorization_size,
- char *hostname, int hostname_size,
- int *port_ptr,
- char *path, int path_size,
- const char *url);
-
-/**
- * Allocate the stream private data and write the stream header to
- * an output media file.
- *
- * @param s Media file handle, must be allocated with avformat_alloc_context().
- * Its oformat field must be set to the desired output format;
- * Its pb field must be set to an already openened AVIOContext.
- * @param options An AVDictionary filled with AVFormatContext and muxer-private options.
- * On return this parameter will be destroyed and replaced with a dict containing
- * options that were not found. May be NULL.
- *
- * @return 0 on success, negative AVERROR on failure.
- *
- * @see av_opt_find, av_dict_set, avio_open, av_oformat_next.
- */
-int avformat_write_header(AVFormatContext *s, AVDictionary **options);
-
-#if FF_API_FORMAT_PARAMETERS
-/**
- * Allocate the stream private data and write the stream header to an
- * output media file.
- * @note: this sets stream time-bases, if possible to stream->codec->time_base
- * but for some formats it might also be some other time base
- *
- * @param s media file handle
- * @return 0 if OK, AVERROR_xxx on error
- *
- * @deprecated use avformat_write_header.
- */
-attribute_deprecated int av_write_header(AVFormatContext *s);
-#endif
-
-/**
- * Write a packet to an output media file.
- *
- * The packet shall contain one audio or video frame.
- * The packet must be correctly interleaved according to the container
- * specification, if not then av_interleaved_write_frame must be used.
- *
- * @param s media file handle
- * @param pkt The packet, which contains the stream_index, buf/buf_size,
- dts/pts, ...
- * @return < 0 on error, = 0 if OK, 1 if end of stream wanted
- */
-int av_write_frame(AVFormatContext *s, AVPacket *pkt);
-
-/**
- * Write a packet to an output media file ensuring correct interleaving.
- *
- * The packet must contain one audio or video frame.
- * If the packets are already correctly interleaved, the application should
- * call av_write_frame() instead as it is slightly faster. It is also important
- * to keep in mind that completely non-interleaved input will need huge amounts
- * of memory to interleave with this, so it is preferable to interleave at the
- * demuxer level.
- *
- * @param s media file handle
- * @param pkt The packet, which contains the stream_index, buf/buf_size,
- dts/pts, ...
- * @return < 0 on error, = 0 if OK, 1 if end of stream wanted
- */
-int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
-
-/**
- * Interleave a packet per dts in an output media file.
- *
- * Packets with pkt->destruct == av_destruct_packet will be freed inside this
- * function, so they cannot be used after it. Note that calling av_free_packet()
- * on them is still safe.
- *
- * @param s media file handle
- * @param out the interleaved packet will be output here
- * @param pkt the input packet
- * @param flush 1 if no further packets are available as input and all
- * remaining packets should be output
- * @return 1 if a packet was output, 0 if no packet could be output,
- * < 0 if an error occurred
- */
-int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
- AVPacket *pkt, int flush);
-
-/**
- * Write the stream trailer to an output media file and free the
- * file private data.
- *
- * May only be called after a successful call to av_write_header.
- *
- * @param s media file handle
- * @return 0 if OK, AVERROR_xxx on error
- */
-int av_write_trailer(AVFormatContext *s);
-
-#if FF_API_DUMP_FORMAT
-attribute_deprecated void dump_format(AVFormatContext *ic,
- int index,
- const char *url,
- int is_output);
-#endif
-
-void av_dump_format(AVFormatContext *ic,
- int index,
- const char *url,
- int is_output);
-
-#if FF_API_PARSE_DATE
-/**
- * Parse datestr and return a corresponding number of microseconds.
- *
- * @param datestr String representing a date or a duration.
- * See av_parse_time() for the syntax of the provided string.
- * @deprecated in favor of av_parse_time()
- */
-attribute_deprecated
-int64_t parse_date(const char *datestr, int duration);
-#endif
-
-/**
- * Get the current time in microseconds.
- */
-int64_t av_gettime(void);
-
-#if FF_API_FIND_INFO_TAG
-/**
- * @deprecated use av_find_info_tag in libavutil instead.
- */
-attribute_deprecated int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
-#endif
-
-/**
- * Return in 'buf' the path with '%d' replaced by a number.
- *
- * Also handles the '%0nd' format where 'n' is the total number
- * of digits and '%%'.
- *
- * @param buf destination buffer
- * @param buf_size destination buffer size
- * @param path numbered sequence string
- * @param number frame number
- * @return 0 if OK, -1 on format error
- */
-int av_get_frame_filename(char *buf, int buf_size,
- const char *path, int number);
-
-/**
- * Check whether filename actually is a numbered sequence generator.
- *
- * @param filename possible numbered sequence string
- * @return 1 if a valid numbered sequence string, 0 otherwise
- */
-int av_filename_number_test(const char *filename);
-
-/**
- * Generate an SDP for an RTP session.
- *
- * @param ac array of AVFormatContexts describing the RTP streams. If the
- * array is composed by only one context, such context can contain
- * multiple AVStreams (one AVStream per RTP stream). Otherwise,
- * all the contexts in the array (an AVCodecContext per RTP stream)
- * must contain only one AVStream.
- * @param n_files number of AVCodecContexts contained in ac
- * @param buf buffer where the SDP will be stored (must be allocated by
- * the caller)
- * @param size the size of the buffer
- * @return 0 if OK, AVERROR_xxx on error
- */
-int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size);
-
-#if FF_API_SDP_CREATE
-attribute_deprecated int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size);
-#endif
-
-/**
- * Return a positive value if the given filename has one of the given
- * extensions, 0 otherwise.
- *
- * @param extensions a comma-separated list of filename extensions
- */
-int av_match_ext(const char *filename, const char *extensions);
-
-#endif /* AVFORMAT_AVFORMAT_H */
+++ /dev/null
-/*
- * copyright (c) 2001 Fabrice Bellard
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#ifndef AVFORMAT_AVIO_H
-#define AVFORMAT_AVIO_H
-
-/**
- * @file
- * Buffered I/O operations
- */
-
-#include <stdint.h>
-
-#include "libavutil/common.h"
-#include "libavutil/log.h"
-
-#include "libavformat/version.h"
-
-
-#define AVIO_SEEKABLE_NORMAL 0x0001 /**< Seeking works like for a local file */
-
-/**
- * Bytestream IO Context.
- * New fields can be added to the end with minor version bumps.
- * Removal, reordering and changes to existing fields require a major
- * version bump.
- * sizeof(AVIOContext) must not be used outside libav*.
- *
- * @note None of the function pointers in AVIOContext should be called
- * directly, they should only be set by the client application
- * when implementing custom I/O. Normally these are set to the
- * function pointers specified in avio_alloc_context()
- */
-typedef struct {
- unsigned char *buffer; /**< Start of the buffer. */
- int buffer_size; /**< Maximum buffer size */
- unsigned char *buf_ptr; /**< Current position in the buffer */
- unsigned char *buf_end; /**< End of the data, may be less than
- buffer+buffer_size if the read function returned
- less data than requested, e.g. for streams where
- no more data has been received yet. */
- void *opaque; /**< A private pointer, passed to the read/write/seek/...
- functions. */
- int (*read_packet)(void *opaque, uint8_t *buf, int buf_size);
- int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
- int64_t (*seek)(void *opaque, int64_t offset, int whence);
- int64_t pos; /**< position in the file of the current buffer */
- int must_flush; /**< true if the next seek should flush */
- int eof_reached; /**< true if eof reached */
- int write_flag; /**< true if open for writing */
-#if FF_API_OLD_AVIO
- attribute_deprecated int is_streamed;
-#endif
- int max_packet_size;
- unsigned long checksum;
- unsigned char *checksum_ptr;
- unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size);
- int error; /**< contains the error code or 0 if no error happened */
- /**
- * Pause or resume playback for network streaming protocols - e.g. MMS.
- */
- int (*read_pause)(void *opaque, int pause);
- /**
- * Seek to a given timestamp in stream with the specified stream_index.
- * Needed for some network streaming protocols which don't support seeking
- * to byte position.
- */
- int64_t (*read_seek)(void *opaque, int stream_index,
- int64_t timestamp, int flags);
- /**
- * A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
- */
- int seekable;
-} AVIOContext;
-
-/* unbuffered I/O */
-
-#if FF_API_OLD_AVIO
-/**
- * URL Context.
- * New fields can be added to the end with minor version bumps.
- * Removal, reordering and changes to existing fields require a major
- * version bump.
- * sizeof(URLContext) must not be used outside libav*.
- * @deprecated This struct will be made private
- */
-typedef struct URLContext {
- const AVClass *av_class; ///< information for av_log(). Set by url_open().
- struct URLProtocol *prot;
- int flags;
- int is_streamed; /**< true if streamed (no seek possible), default = false */
- int max_packet_size; /**< if non zero, the stream is packetized with this max packet size */
- void *priv_data;
- char *filename; /**< specified URL */
- int is_connected;
-} URLContext;
-
-#define URL_PROTOCOL_FLAG_NESTED_SCHEME 1 /*< The protocol name can be the first part of a nested protocol scheme */
-
-/**
- * @deprecated This struct is to be made private. Use the higher-level
- * AVIOContext-based API instead.
- */
-typedef struct URLProtocol {
- const char *name;
- int (*url_open)(URLContext *h, const char *url, int flags);
- int (*url_read)(URLContext *h, unsigned char *buf, int size);
- int (*url_write)(URLContext *h, const unsigned char *buf, int size);
- int64_t (*url_seek)(URLContext *h, int64_t pos, int whence);
- int (*url_close)(URLContext *h);
- struct URLProtocol *next;
- int (*url_read_pause)(URLContext *h, int pause);
- int64_t (*url_read_seek)(URLContext *h, int stream_index,
- int64_t timestamp, int flags);
- int (*url_get_file_handle)(URLContext *h);
- int priv_data_size;
- const AVClass *priv_data_class;
- int flags;
- int (*url_check)(URLContext *h, int mask);
-} URLProtocol;
-
-typedef struct URLPollEntry {
- URLContext *handle;
- int events;
- int revents;
-} URLPollEntry;
-
-/* not implemented */
-attribute_deprecated int url_poll(URLPollEntry *poll_table, int n, int timeout);
-
-/**
- * @name URL open modes
- * The flags argument to url_open and cosins must be one of the following
- * constants, optionally ORed with other flags.
- * @{
- */
-#define URL_RDONLY 1 /**< read-only */
-#define URL_WRONLY 2 /**< write-only */
-#define URL_RDWR (URL_RDONLY|URL_WRONLY) /**< read-write */
-/**
- * @}
- */
-
-/**
- * Use non-blocking mode.
- * If this flag is set, operations on the context will return
- * AVERROR(EAGAIN) if they can not be performed immediately.
- * If this flag is not set, operations on the context will never return
- * AVERROR(EAGAIN).
- * Note that this flag does not affect the opening/connecting of the
- * context. Connecting a protocol will always block if necessary (e.g. on
- * network protocols) but never hang (e.g. on busy devices).
- * Warning: non-blocking protocols is work-in-progress; this flag may be
- * silently ignored.
- */
-#define URL_FLAG_NONBLOCK 4
-
-typedef int URLInterruptCB(void);
-extern URLInterruptCB *url_interrupt_cb;
-
-/**
- * @defgroup old_url_funcs Old url_* functions
- * The following functions are deprecated. Use the buffered API based on #AVIOContext instead.
- * @{
- */
-attribute_deprecated int url_open_protocol (URLContext **puc, struct URLProtocol *up,
- const char *url, int flags);
-attribute_deprecated int url_alloc(URLContext **h, const char *url, int flags);
-attribute_deprecated int url_connect(URLContext *h);
-attribute_deprecated int url_open(URLContext **h, const char *url, int flags);
-attribute_deprecated int url_read(URLContext *h, unsigned char *buf, int size);
-attribute_deprecated int url_read_complete(URLContext *h, unsigned char *buf, int size);
-attribute_deprecated int url_write(URLContext *h, const unsigned char *buf, int size);
-attribute_deprecated int64_t url_seek(URLContext *h, int64_t pos, int whence);
-attribute_deprecated int url_close(URLContext *h);
-attribute_deprecated int64_t url_filesize(URLContext *h);
-attribute_deprecated int url_get_file_handle(URLContext *h);
-attribute_deprecated int url_get_max_packet_size(URLContext *h);
-attribute_deprecated void url_get_filename(URLContext *h, char *buf, int buf_size);
-attribute_deprecated int av_url_read_pause(URLContext *h, int pause);
-attribute_deprecated int64_t av_url_read_seek(URLContext *h, int stream_index,
- int64_t timestamp, int flags);
-attribute_deprecated void url_set_interrupt_cb(int (*interrupt_cb)(void));
-/**
- * If protocol is NULL, returns the first registered protocol,
- * if protocol is non-NULL, returns the next registered protocol after protocol,
- * or NULL if protocol is the last one.
- */
-attribute_deprecated URLProtocol *av_protocol_next(URLProtocol *p);
-/**
- * Register the URLProtocol protocol.
- *
- * @param size the size of the URLProtocol struct referenced
- */
-attribute_deprecated int av_register_protocol2(URLProtocol *protocol, int size);
-/**
- * @}
- */
-
-
-typedef attribute_deprecated AVIOContext ByteIOContext;
-
-attribute_deprecated int init_put_byte(AVIOContext *s,
- unsigned char *buffer,
- int buffer_size,
- int write_flag,
- void *opaque,
- int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
- int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
- int64_t (*seek)(void *opaque, int64_t offset, int whence));
-attribute_deprecated AVIOContext *av_alloc_put_byte(
- unsigned char *buffer,
- int buffer_size,
- int write_flag,
- void *opaque,
- int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
- int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
- int64_t (*seek)(void *opaque, int64_t offset, int whence));
-
-/**
- * @defgroup old_avio_funcs Old put_/get_*() functions
- * The following functions are deprecated. Use the "avio_"-prefixed functions instead.
- * @{
- */
-attribute_deprecated int get_buffer(AVIOContext *s, unsigned char *buf, int size);
-attribute_deprecated int get_partial_buffer(AVIOContext *s, unsigned char *buf, int size);
-attribute_deprecated int get_byte(AVIOContext *s);
-attribute_deprecated unsigned int get_le16(AVIOContext *s);
-attribute_deprecated unsigned int get_le24(AVIOContext *s);
-attribute_deprecated unsigned int get_le32(AVIOContext *s);
-attribute_deprecated uint64_t get_le64(AVIOContext *s);
-attribute_deprecated unsigned int get_be16(AVIOContext *s);
-attribute_deprecated unsigned int get_be24(AVIOContext *s);
-attribute_deprecated unsigned int get_be32(AVIOContext *s);
-attribute_deprecated uint64_t get_be64(AVIOContext *s);
-
-attribute_deprecated void put_byte(AVIOContext *s, int b);
-attribute_deprecated void put_nbyte(AVIOContext *s, int b, int count);
-attribute_deprecated void put_buffer(AVIOContext *s, const unsigned char *buf, int size);
-attribute_deprecated void put_le64(AVIOContext *s, uint64_t val);
-attribute_deprecated void put_be64(AVIOContext *s, uint64_t val);
-attribute_deprecated void put_le32(AVIOContext *s, unsigned int val);
-attribute_deprecated void put_be32(AVIOContext *s, unsigned int val);
-attribute_deprecated void put_le24(AVIOContext *s, unsigned int val);
-attribute_deprecated void put_be24(AVIOContext *s, unsigned int val);
-attribute_deprecated void put_le16(AVIOContext *s, unsigned int val);
-attribute_deprecated void put_be16(AVIOContext *s, unsigned int val);
-attribute_deprecated void put_tag(AVIOContext *s, const char *tag);
-/**
- * @}
- */
-
-attribute_deprecated int av_url_read_fpause(AVIOContext *h, int pause);
-attribute_deprecated int64_t av_url_read_fseek (AVIOContext *h, int stream_index,
- int64_t timestamp, int flags);
-
-/**
- * @defgroup old_url_f_funcs Old url_f* functions
- * The following functions are deprecated, use the "avio_"-prefixed functions instead.
- * @{
- */
-attribute_deprecated int url_fopen( AVIOContext **s, const char *url, int flags);
-attribute_deprecated int url_fclose(AVIOContext *s);
-attribute_deprecated int64_t url_fseek(AVIOContext *s, int64_t offset, int whence);
-attribute_deprecated int url_fskip(AVIOContext *s, int64_t offset);
-attribute_deprecated int64_t url_ftell(AVIOContext *s);
-attribute_deprecated int64_t url_fsize(AVIOContext *s);
-#define URL_EOF (-1)
-attribute_deprecated int url_fgetc(AVIOContext *s);
-attribute_deprecated int url_setbufsize(AVIOContext *s, int buf_size);
-#ifdef __GNUC__
-attribute_deprecated int url_fprintf(AVIOContext *s, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3)));
-#else
-attribute_deprecated int url_fprintf(AVIOContext *s, const char *fmt, ...);
-#endif
-attribute_deprecated void put_flush_packet(AVIOContext *s);
-attribute_deprecated int url_open_dyn_buf(AVIOContext **s);
-attribute_deprecated int url_open_dyn_packet_buf(AVIOContext **s, int max_packet_size);
-attribute_deprecated int url_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
-attribute_deprecated int url_fdopen(AVIOContext **s, URLContext *h);
-/**
- * @}
- */
-
-/**
- * @deprecated use AVIOContext.eof_reached
- */
-attribute_deprecated int url_feof(AVIOContext *s);
-attribute_deprecated int url_ferror(AVIOContext *s);
-
-attribute_deprecated int udp_set_remote_url(URLContext *h, const char *uri);
-attribute_deprecated int udp_get_local_port(URLContext *h);
-
-attribute_deprecated void init_checksum(AVIOContext *s,
- unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len),
- unsigned long checksum);
-attribute_deprecated unsigned long get_checksum(AVIOContext *s);
-attribute_deprecated void put_strz(AVIOContext *s, const char *buf);
-/** @note unlike fgets, the EOL character is not returned and a whole
- line is parsed. return NULL if first char read was EOF */
-attribute_deprecated char *url_fgets(AVIOContext *s, char *buf, int buf_size);
-/**
- * @deprecated use avio_get_str instead
- */
-attribute_deprecated char *get_strz(AVIOContext *s, char *buf, int maxlen);
-/**
- * @deprecated Use AVIOContext.seekable field directly.
- */
-attribute_deprecated static inline int url_is_streamed(AVIOContext *s)
-{
- return !s->seekable;
-}
-attribute_deprecated URLContext *url_fileno(AVIOContext *s);
-
-/**
- * @deprecated use AVIOContext.max_packet_size directly.
- */
-attribute_deprecated int url_fget_max_packet_size(AVIOContext *s);
-
-attribute_deprecated int url_open_buf(AVIOContext **s, uint8_t *buf, int buf_size, int flags);
-
-/** return the written or read size */
-attribute_deprecated int url_close_buf(AVIOContext *s);
-
-/**
- * Return a non-zero value if the resource indicated by url
- * exists, 0 otherwise.
- * @deprecated Use avio_check instead.
- */
-attribute_deprecated int url_exist(const char *url);
-#endif // FF_API_OLD_AVIO
-
-/**
- * Return AVIO_FLAG_* access flags corresponding to the access permissions
- * of the resource in url, or a negative value corresponding to an
- * AVERROR code in case of failure. The returned access flags are
- * masked by the value in flags.
- *
- * @note This function is intrinsically unsafe, in the sense that the
- * checked resource may change its existence or permission status from
- * one call to another. Thus you should not trust the returned value,
- * unless you are sure that no other processes are accessing the
- * checked resource.
- */
-int avio_check(const char *url, int flags);
-
-/**
- * The callback is called in blocking functions to test regulary if
- * asynchronous interruption is needed. AVERROR_EXIT is returned
- * in this case by the interrupted function. 'NULL' means no interrupt
- * callback is given.
- */
-void avio_set_interrupt_cb(int (*interrupt_cb)(void));
-
-/**
- * Allocate and initialize an AVIOContext for buffered I/O. It must be later
- * freed with av_free().
- *
- * @param buffer Memory block for input/output operations via AVIOContext.
- * The buffer must be allocated with av_malloc() and friends.
- * @param buffer_size The buffer size is very important for performance.
- * For protocols with fixed blocksize it should be set to this blocksize.
- * For others a typical size is a cache page, e.g. 4kb.
- * @param write_flag Set to 1 if the buffer should be writable, 0 otherwise.
- * @param opaque An opaque pointer to user-specific data.
- * @param read_packet A function for refilling the buffer, may be NULL.
- * @param write_packet A function for writing the buffer contents, may be NULL.
- * @param seek A function for seeking to specified byte position, may be NULL.
- *
- * @return Allocated AVIOContext or NULL on failure.
- */
-AVIOContext *avio_alloc_context(
- unsigned char *buffer,
- int buffer_size,
- int write_flag,
- void *opaque,
- int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
- int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
- int64_t (*seek)(void *opaque, int64_t offset, int whence));
-
-void avio_w8(AVIOContext *s, int b);
-void avio_write(AVIOContext *s, const unsigned char *buf, int size);
-void avio_wl64(AVIOContext *s, uint64_t val);
-void avio_wb64(AVIOContext *s, uint64_t val);
-void avio_wl32(AVIOContext *s, unsigned int val);
-void avio_wb32(AVIOContext *s, unsigned int val);
-void avio_wl24(AVIOContext *s, unsigned int val);
-void avio_wb24(AVIOContext *s, unsigned int val);
-void avio_wl16(AVIOContext *s, unsigned int val);
-void avio_wb16(AVIOContext *s, unsigned int val);
-
-/**
- * Write a NULL-terminated string.
- * @return number of bytes written.
- */
-int avio_put_str(AVIOContext *s, const char *str);
-
-/**
- * Convert an UTF-8 string to UTF-16LE and write it.
- * @return number of bytes written.
- */
-int avio_put_str16le(AVIOContext *s, const char *str);
-
-/**
- * Passing this as the "whence" parameter to a seek function causes it to
- * return the filesize without seeking anywhere. Supporting this is optional.
- * If it is not supported then the seek function will return <0.
- */
-#define AVSEEK_SIZE 0x10000
-
-/**
- * Oring this flag as into the "whence" parameter to a seek function causes it to
- * seek by any means (like reopening and linear reading) or other normally unreasonble
- * means that can be extreemly slow.
- * This may be ignored by the seek code.
- */
-#define AVSEEK_FORCE 0x20000
-
-/**
- * fseek() equivalent for AVIOContext.
- * @return new position or AVERROR.
- */
-int64_t avio_seek(AVIOContext *s, int64_t offset, int whence);
-
-/**
- * Skip given number of bytes forward
- * @return new position or AVERROR.
- */
-static av_always_inline int64_t avio_skip(AVIOContext *s, int64_t offset)
-{
- return avio_seek(s, offset, SEEK_CUR);
-}
-
-/**
- * ftell() equivalent for AVIOContext.
- * @return position or AVERROR.
- */
-static av_always_inline int64_t avio_tell(AVIOContext *s)
-{
- return avio_seek(s, 0, SEEK_CUR);
-}
-
-/**
- * Get the filesize.
- * @return filesize or AVERROR
- */
-int64_t avio_size(AVIOContext *s);
-
-/** @warning currently size is limited */
-#ifdef __GNUC__
-int avio_printf(AVIOContext *s, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3)));
-#else
-int avio_printf(AVIOContext *s, const char *fmt, ...);
-#endif
-
-void avio_flush(AVIOContext *s);
-
-
-/**
- * Read size bytes from AVIOContext into buf.
- * @return number of bytes read or AVERROR
- */
-int avio_read(AVIOContext *s, unsigned char *buf, int size);
-
-/**
- * @name Functions for reading from AVIOContext
- * @{
- *
- * @note return 0 if EOF, so you cannot use it if EOF handling is
- * necessary
- */
-int avio_r8 (AVIOContext *s);
-unsigned int avio_rl16(AVIOContext *s);
-unsigned int avio_rl24(AVIOContext *s);
-unsigned int avio_rl32(AVIOContext *s);
-uint64_t avio_rl64(AVIOContext *s);
-unsigned int avio_rb16(AVIOContext *s);
-unsigned int avio_rb24(AVIOContext *s);
-unsigned int avio_rb32(AVIOContext *s);
-uint64_t avio_rb64(AVIOContext *s);
-/**
- * @}
- */
-
-/**
- * Read a string from pb into buf. The reading will terminate when either
- * a NULL character was encountered, maxlen bytes have been read, or nothing
- * more can be read from pb. The result is guaranteed to be NULL-terminated, it
- * will be truncated if buf is too small.
- * Note that the string is not interpreted or validated in any way, it
- * might get truncated in the middle of a sequence for multi-byte encodings.
- *
- * @return number of bytes read (is always <= maxlen).
- * If reading ends on EOF or error, the return value will be one more than
- * bytes actually read.
- */
-int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen);
-
-/**
- * Read a UTF-16 string from pb and convert it to UTF-8.
- * The reading will terminate when either a null or invalid character was
- * encountered or maxlen bytes have been read.
- * @return number of bytes read (is always <= maxlen)
- */
-int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen);
-int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen);
-
-
-/**
- * @name URL open modes
- * The flags argument to avio_open must be one of the following
- * constants, optionally ORed with other flags.
- * @{
- */
-#define AVIO_FLAG_READ 1 /**< read-only */
-#define AVIO_FLAG_WRITE 2 /**< write-only */
-#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE) /**< read-write pseudo flag */
-/**
- * @}
- */
-
-/**
- * Use non-blocking mode.
- * If this flag is set, operations on the context will return
- * AVERROR(EAGAIN) if they can not be performed immediately.
- * If this flag is not set, operations on the context will never return
- * AVERROR(EAGAIN).
- * Note that this flag does not affect the opening/connecting of the
- * context. Connecting a protocol will always block if necessary (e.g. on
- * network protocols) but never hang (e.g. on busy devices).
- * Warning: non-blocking protocols is work-in-progress; this flag may be
- * silently ignored.
- */
-#define AVIO_FLAG_NONBLOCK 8
-
-/**
- * Create and initialize a AVIOContext for accessing the
- * resource indicated by url.
- * @note When the resource indicated by url has been opened in
- * read+write mode, the AVIOContext can be used only for writing.
- *
- * @param s Used to return the pointer to the created AVIOContext.
- * In case of failure the pointed to value is set to NULL.
- * @param flags flags which control how the resource indicated by url
- * is to be opened
- * @return 0 in case of success, a negative value corresponding to an
- * AVERROR code in case of failure
- */
-int avio_open(AVIOContext **s, const char *url, int flags);
-
-/**
- * Close the resource accessed by the AVIOContext s and free it.
- * This function can only be used if s was opened by avio_open().
- *
- * @return 0 on success, an AVERROR < 0 on error.
- */
-int avio_close(AVIOContext *s);
-
-/**
- * Open a write only memory stream.
- *
- * @param s new IO context
- * @return zero if no error.
- */
-int avio_open_dyn_buf(AVIOContext **s);
-
-/**
- * Return the written size and a pointer to the buffer. The buffer
- * must be freed with av_free().
- * Padding of FF_INPUT_BUFFER_PADDING_SIZE is added to the buffer.
- *
- * @param s IO context
- * @param pbuffer pointer to a byte buffer
- * @return the length of the byte buffer
- */
-int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
-
-/**
- * Iterate through names of available protocols.
- *
- * @param opaque A private pointer representing current protocol.
- * It must be a pointer to NULL on first iteration and will
- * be updated by successive calls to avio_enum_protocols.
- * @param output If set to 1, iterate over output protocols,
- * otherwise over input protocols.
- *
- * @return A static string containing the name of current protocol or NULL
- */
-const char *avio_enum_protocols(void **opaque, int output);
-
-/**
- * Pause and resume playing - only meaningful if using a network streaming
- * protocol (e.g. MMS).
- * @param pause 1 for pause, 0 for resume
- */
-int avio_pause(AVIOContext *h, int pause);
-
-/**
- * Seek to a given timestamp relative to some component stream.
- * Only meaningful if using a network streaming protocol (e.g. MMS.).
- * @param stream_index The stream index that the timestamp is relative to.
- * If stream_index is (-1) the timestamp should be in AV_TIME_BASE
- * units from the beginning of the presentation.
- * If a stream_index >= 0 is used and the protocol does not support
- * seeking based on component streams, the call will fail with ENOTSUP.
- * @param timestamp timestamp in AVStream.time_base units
- * or if there is no stream specified then in AV_TIME_BASE units.
- * @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE
- * and AVSEEK_FLAG_ANY. The protocol may silently ignore
- * AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will
- * fail with ENOTSUP if used and not supported.
- * @return >= 0 on success
- * @see AVInputFormat::read_seek
- */
-int64_t avio_seek_time(AVIOContext *h, int stream_index,
- int64_t timestamp, int flags);
-
-#endif /* AVFORMAT_AVIO_H */
+++ /dev/null
-/*
- * Version macros.
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVFORMAT_VERSION_H
-#define AVFORMAT_VERSION_H
-
-#include "libavutil/avutil.h"
-
-#define LIBAVFORMAT_VERSION_MAJOR 53
-#define LIBAVFORMAT_VERSION_MINOR 2
-#define LIBAVFORMAT_VERSION_MICRO 0
-
-#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
- LIBAVFORMAT_VERSION_MINOR, \
- LIBAVFORMAT_VERSION_MICRO)
-#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \
- LIBAVFORMAT_VERSION_MINOR, \
- LIBAVFORMAT_VERSION_MICRO)
-#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
-
-#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
-
-/**
- * Those FF_API_* defines are not part of public API.
- * They may change, break or disappear at any time.
- */
-#ifndef FF_API_OLD_METADATA2
-#define FF_API_OLD_METADATA2 (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_READ_SEEK
-#define FF_API_READ_SEEK (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_OLD_AVIO
-#define FF_API_OLD_AVIO (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_DUMP_FORMAT
-#define FF_API_DUMP_FORMAT (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_PARSE_DATE
-#define FF_API_PARSE_DATE (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_FIND_INFO_TAG
-#define FF_API_FIND_INFO_TAG (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_PKT_DUMP
-#define FF_API_PKT_DUMP (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_GUESS_IMG2_CODEC
-#define FF_API_GUESS_IMG2_CODEC (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_SDP_CREATE
-#define FF_API_SDP_CREATE (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_FORMAT_PARAMETERS
-#define FF_API_FORMAT_PARAMETERS (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-#ifndef FF_API_FLAG_RTP_HINT
-#define FF_API_FLAG_RTP_HINT (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
-
-#endif /* AVFORMAT_VERSION_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Mans Rullgard
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_ADLER32_H
-#define AVUTIL_ADLER32_H
-
-#include <stdint.h>
-#include "attributes.h"
-
-/**
- * Calculate the Adler32 checksum of a buffer.
- *
- * Passing the return value to a subsequent av_adler32_update() call
- * allows the checksum of multiple buffers to be calculated as though
- * they were concatenated.
- *
- * @param adler initial checksum value
- * @param buf pointer to input buffer
- * @param len size of input buffer
- * @return updated checksum
- */
-unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf,
- unsigned int len) av_pure;
-
-#endif /* AVUTIL_ADLER32_H */
+++ /dev/null
-/*
- * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_AES_H
-#define AVUTIL_AES_H
-
-#include <stdint.h>
-
-extern const int av_aes_size;
-
-struct AVAES;
-
-/**
- * Initialize an AVAES context.
- * @param key_bits 128, 192 or 256
- * @param decrypt 0 for encryption, 1 for decryption
- */
-int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt);
-
-/**
- * Encrypt or decrypt a buffer using a previously initialized context.
- * @param count number of 16 byte blocks
- * @param dst destination array, can be equal to src
- * @param src source array, can be equal to dst
- * @param iv initialization vector for CBC mode, if NULL then ECB will be used
- * @param decrypt 0 for encryption, 1 for decryption
- */
-void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
-
-#endif /* AVUTIL_AES_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * Macro definitions for various function/variable attributes
- */
-
-#ifndef AVUTIL_ATTRIBUTES_H
-#define AVUTIL_ATTRIBUTES_H
-
-#ifdef __GNUC__
-# define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y)
-#else
-# define AV_GCC_VERSION_AT_LEAST(x,y) 0
-#endif
-
-#ifndef av_always_inline
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-# define av_always_inline __attribute__((always_inline)) inline
-#else
-# define av_always_inline inline
-#endif
-#endif
-
-#ifndef av_noinline
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-# define av_noinline __attribute__((noinline))
-#else
-# define av_noinline
-#endif
-#endif
-
-#ifndef av_pure
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-# define av_pure __attribute__((pure))
-#else
-# define av_pure
-#endif
-#endif
-
-#ifndef av_const
-#if AV_GCC_VERSION_AT_LEAST(2,6)
-# define av_const __attribute__((const))
-#else
-# define av_const
-#endif
-#endif
-
-#ifndef av_cold
-#if AV_GCC_VERSION_AT_LEAST(4,3)
-# define av_cold __attribute__((cold))
-#else
-# define av_cold
-#endif
-#endif
-
-#ifndef av_flatten
-#if AV_GCC_VERSION_AT_LEAST(4,1)
-# define av_flatten __attribute__((flatten))
-#else
-# define av_flatten
-#endif
-#endif
-
-#ifndef attribute_deprecated
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-# define attribute_deprecated __attribute__((deprecated))
-#else
-# define attribute_deprecated
-#endif
-#endif
-
-#ifndef av_unused
-#if defined(__GNUC__)
-# define av_unused __attribute__((unused))
-#else
-# define av_unused
-#endif
-#endif
-
-/**
- * Mark a variable as used and prevent the compiler from optimizing it
- * away. This is useful for variables accessed only from inline
- * assembler without the compiler being aware.
- */
-#ifndef av_used
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-# define av_used __attribute__((used))
-#else
-# define av_used
-#endif
-#endif
-
-#ifndef av_alias
-#if AV_GCC_VERSION_AT_LEAST(3,3)
-# define av_alias __attribute__((may_alias))
-#else
-# define av_alias
-#endif
-#endif
-
-#ifndef av_uninit
-#if defined(__GNUC__) && !defined(__ICC)
-# define av_uninit(x) x=x
-#else
-# define av_uninit(x) x
-#endif
-#endif
-
-#ifdef __GNUC__
-# define av_builtin_constant_p __builtin_constant_p
-#else
-# define av_builtin_constant_p(x) 0
-#endif
-
-#endif /* AVUTIL_ATTRIBUTES_H */
+++ /dev/null
-/*
- * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- * Copyright (c) 2008 Peter Ross
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_AUDIOCONVERT_H
-#define AVUTIL_AUDIOCONVERT_H
-
-#include <stdint.h>
-
-/**
- * @file
- * audio conversion routines
- */
-
-/* Audio channel masks */
-#define AV_CH_FRONT_LEFT 0x00000001
-#define AV_CH_FRONT_RIGHT 0x00000002
-#define AV_CH_FRONT_CENTER 0x00000004
-#define AV_CH_LOW_FREQUENCY 0x00000008
-#define AV_CH_BACK_LEFT 0x00000010
-#define AV_CH_BACK_RIGHT 0x00000020
-#define AV_CH_FRONT_LEFT_OF_CENTER 0x00000040
-#define AV_CH_FRONT_RIGHT_OF_CENTER 0x00000080
-#define AV_CH_BACK_CENTER 0x00000100
-#define AV_CH_SIDE_LEFT 0x00000200
-#define AV_CH_SIDE_RIGHT 0x00000400
-#define AV_CH_TOP_CENTER 0x00000800
-#define AV_CH_TOP_FRONT_LEFT 0x00001000
-#define AV_CH_TOP_FRONT_CENTER 0x00002000
-#define AV_CH_TOP_FRONT_RIGHT 0x00004000
-#define AV_CH_TOP_BACK_LEFT 0x00008000
-#define AV_CH_TOP_BACK_CENTER 0x00010000
-#define AV_CH_TOP_BACK_RIGHT 0x00020000
-#define AV_CH_STEREO_LEFT 0x20000000 ///< Stereo downmix.
-#define AV_CH_STEREO_RIGHT 0x40000000 ///< See AV_CH_STEREO_LEFT.
-
-/** Channel mask value used for AVCodecContext.request_channel_layout
- to indicate that the user requests the channel order of the decoder output
- to be the native codec channel order. */
-#define AV_CH_LAYOUT_NATIVE 0x8000000000000000LL
-
-/* Audio channel convenience macros */
-#define AV_CH_LAYOUT_MONO (AV_CH_FRONT_CENTER)
-#define AV_CH_LAYOUT_STEREO (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT)
-#define AV_CH_LAYOUT_2_1 (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)
-#define AV_CH_LAYOUT_SURROUND (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
-#define AV_CH_LAYOUT_4POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER)
-#define AV_CH_LAYOUT_2_2 (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
-#define AV_CH_LAYOUT_QUAD (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
-#define AV_CH_LAYOUT_5POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
-#define AV_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY)
-#define AV_CH_LAYOUT_5POINT0_BACK (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
-#define AV_CH_LAYOUT_5POINT1_BACK (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY)
-#define AV_CH_LAYOUT_7POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
-#define AV_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
-#define AV_CH_LAYOUT_7POINT1_WIDE (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
-#define AV_CH_LAYOUT_STEREO_DOWNMIX (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)
-
-/**
- * Return a channel layout id that matches name, 0 if no match.
- */
-int64_t av_get_channel_layout(const char *name);
-
-/**
- * Return a description of a channel layout.
- * If nb_channels is <= 0, it is guessed from the channel_layout.
- *
- * @param buf put here the string containing the channel layout
- * @param buf_size size in bytes of the buffer
- */
-void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, int64_t channel_layout);
-
-/**
- * Return the number of channels in the channel layout.
- */
-int av_get_channel_layout_nb_channels(int64_t channel_layout);
-
-#endif /* AVUTIL_AUDIOCONVERT_H */
+++ /dev/null
-/*
- * copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * simple assert() macros that are a bit more flexible than ISO C assert().
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-#ifndef AVUTIL_AVASSERT_H
-#define AVUTIL_AVASSERT_H
-
-#include <stdlib.h>
-#include "avutil.h"
-#include "log.h"
-
-/**
- * assert() equivalent, that is always enabled.
- */
-#define av_assert0(cond) do { \
- if (!(cond)) { \
- av_log(NULL, AV_LOG_FATAL, "Assertion %s failed at %s:%d\n", \
- AV_STRINGIFY(cond), __FILE__, __LINE__); \
- abort(); \
- } \
-} while (0)
-
-
-/**
- * assert() equivalent, that does not lie in speed critical code.
- * These asserts() thus can be enabled without fearing speedloss.
- */
-#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
-#define av_assert1(cond) av_assert0(cond)
-#else
-#define av_assert1(cond) ((void)0)
-#endif
-
-
-/**
- * assert() equivalent, that does lie in speed critical code.
- */
-#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
-#define av_assert2(cond) av_assert0(cond)
-#else
-#define av_assert2(cond) ((void)0)
-#endif
-
-#endif /* AVUTIL_AVASSERT_H */
+++ /dev/null
-/* Generated by ffconf */
-#ifndef AVUTIL_AVCONFIG_H
-#define AVUTIL_AVCONFIG_H
-#define AV_HAVE_BIGENDIAN 0
-#define AV_HAVE_FAST_UNALIGNED 1
-#endif /* AVUTIL_AVCONFIG_H */
+++ /dev/null
-/*
- * Copyright (c) 2007 Mans Rullgard
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_AVSTRING_H
-#define AVUTIL_AVSTRING_H
-
-#include <stddef.h>
-
-/**
- * Return non-zero if pfx is a prefix of str. If it is, *ptr is set to
- * the address of the first character in str after the prefix.
- *
- * @param str input string
- * @param pfx prefix to test
- * @param ptr updated if the prefix is matched inside str
- * @return non-zero if the prefix matches, zero otherwise
- */
-int av_strstart(const char *str, const char *pfx, const char **ptr);
-
-/**
- * Return non-zero if pfx is a prefix of str independent of case. If
- * it is, *ptr is set to the address of the first character in str
- * after the prefix.
- *
- * @param str input string
- * @param pfx prefix to test
- * @param ptr updated if the prefix is matched inside str
- * @return non-zero if the prefix matches, zero otherwise
- */
-int av_stristart(const char *str, const char *pfx, const char **ptr);
-
-/**
- * Locate the first case-independent occurrence in the string haystack
- * of the string needle. A zero-length string needle is considered to
- * match at the start of haystack.
- *
- * This function is a case-insensitive version of the standard strstr().
- *
- * @param haystack string to search in
- * @param needle string to search for
- * @return pointer to the located match within haystack
- * or a null pointer if no match
- */
-char *av_stristr(const char *haystack, const char *needle);
-
-/**
- * Copy the string src to dst, but no more than size - 1 bytes, and
- * null-terminate dst.
- *
- * This function is the same as BSD strlcpy().
- *
- * @param dst destination buffer
- * @param src source string
- * @param size size of destination buffer
- * @return the length of src
- *
- * WARNING: since the return value is the length of src, src absolutely
- * _must_ be a properly 0-terminated string, otherwise this will read beyond
- * the end of the buffer and possibly crash.
- */
-size_t av_strlcpy(char *dst, const char *src, size_t size);
-
-/**
- * Append the string src to the string dst, but to a total length of
- * no more than size - 1 bytes, and null-terminate dst.
- *
- * This function is similar to BSD strlcat(), but differs when
- * size <= strlen(dst).
- *
- * @param dst destination buffer
- * @param src source string
- * @param size size of destination buffer
- * @return the total length of src and dst
- *
- * WARNING: since the return value use the length of src and dst, these absolutely
- * _must_ be a properly 0-terminated strings, otherwise this will read beyond
- * the end of the buffer and possibly crash.
- */
-size_t av_strlcat(char *dst, const char *src, size_t size);
-
-/**
- * Append output to a string, according to a format. Never write out of
- * the destination buffer, and always put a terminating 0 within
- * the buffer.
- * @param dst destination buffer (string to which the output is
- * appended)
- * @param size total size of the destination buffer
- * @param fmt printf-compatible format string, specifying how the
- * following parameters are used
- * @return the length of the string that would have been generated
- * if enough space had been available
- */
-size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...);
-
-/**
- * Convert a number to a av_malloced string.
- */
-char *av_d2str(double d);
-
-/**
- * Unescape the given string until a non escaped terminating char,
- * and return the token corresponding to the unescaped string.
- *
- * The normal \ and ' escaping is supported. Leading and trailing
- * whitespaces are removed, unless they are escaped with '\' or are
- * enclosed between ''.
- *
- * @param buf the buffer to parse, buf will be updated to point to the
- * terminating char
- * @param term a 0-terminated list of terminating chars
- * @return the malloced unescaped string, which must be av_freed by
- * the user, NULL in case of allocation failure
- */
-char *av_get_token(const char **buf, const char *term);
-
-#endif /* AVUTIL_AVSTRING_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_AVUTIL_H
-#define AVUTIL_AVUTIL_H
-
-/**
- * @file
- * external API header
- */
-
-
-#define AV_STRINGIFY(s) AV_TOSTRING(s)
-#define AV_TOSTRING(s) #s
-
-#define AV_GLUE(a, b) a ## b
-#define AV_JOIN(a, b) AV_GLUE(a, b)
-
-#define AV_PRAGMA(s) _Pragma(#s)
-
-#define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c)
-#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
-#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
-
-#define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR 7
-#define LIBAVUTIL_VERSION_MICRO 0
-
-#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
- LIBAVUTIL_VERSION_MINOR, \
- LIBAVUTIL_VERSION_MICRO)
-#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \
- LIBAVUTIL_VERSION_MINOR, \
- LIBAVUTIL_VERSION_MICRO)
-#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
-
-#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
-
-/**
- * Those FF_API_* defines are not part of public API.
- * They may change, break or disappear at any time.
- */
-#ifndef FF_API_GET_BITS_PER_SAMPLE_FMT
-#define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 52)
-#endif
-#ifndef FF_API_FIND_OPT
-#define FF_API_FIND_OPT (LIBAVUTIL_VERSION_MAJOR < 52)
-#endif
-
-/**
- * Return the LIBAVUTIL_VERSION_INT constant.
- */
-unsigned avutil_version(void);
-
-/**
- * Return the libavutil build-time configuration.
- */
-const char *avutil_configuration(void);
-
-/**
- * Return the libavutil license.
- */
-const char *avutil_license(void);
-
-enum AVMediaType {
- AVMEDIA_TYPE_UNKNOWN = -1,
- AVMEDIA_TYPE_VIDEO,
- AVMEDIA_TYPE_AUDIO,
- AVMEDIA_TYPE_DATA,
- AVMEDIA_TYPE_SUBTITLE,
- AVMEDIA_TYPE_ATTACHMENT,
- AVMEDIA_TYPE_NB
-};
-
-#define FF_LAMBDA_SHIFT 7
-#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
-#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
-#define FF_LAMBDA_MAX (256*128-1)
-
-#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
-
-#define AV_NOPTS_VALUE INT64_C(0x8000000000000000)
-#define AV_TIME_BASE 1000000
-#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
-
-enum AVPictureType {
- AV_PICTURE_TYPE_I = 1, ///< Intra
- AV_PICTURE_TYPE_P, ///< Predicted
- AV_PICTURE_TYPE_B, ///< Bi-dir predicted
- AV_PICTURE_TYPE_S, ///< S(GMC)-VOP MPEG4
- AV_PICTURE_TYPE_SI, ///< Switching Intra
- AV_PICTURE_TYPE_SP, ///< Switching Predicted
- AV_PICTURE_TYPE_BI, ///< BI type
-};
-
-/**
- * Return a single letter to describe the given picture type
- * pict_type.
- *
- * @param[in] pict_type the picture type @return a single character
- * representing the picture type, '?' if pict_type is unknown
- */
-char av_get_picture_type_char(enum AVPictureType pict_type);
-
-#include "common.h"
-#include "error.h"
-#include "mathematics.h"
-#include "rational.h"
-#include "intfloat_readwrite.h"
-#include "log.h"
-#include "pixfmt.h"
-
-#endif /* AVUTIL_AVUTIL_H */
+++ /dev/null
-/*
- * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_BASE64_H
-#define AVUTIL_BASE64_H
-
-#include <stdint.h>
-
-/**
- * Decode a base64-encoded string.
- *
- * @param out buffer for decoded data
- * @param in null-terminated input string
- * @param out_size size in bytes of the out buffer, must be at
- * least 3/4 of the length of in
- * @return number of bytes written, or a negative value in case of
- * invalid input
- */
-int av_base64_decode(uint8_t *out, const char *in, int out_size);
-
-/**
- * Encode data to base64 and null-terminate.
- *
- * @param out buffer for encoded data
- * @param out_size size in bytes of the output buffer, must be at
- * least AV_BASE64_SIZE(in_size)
- * @param in_size size in bytes of the 'in' buffer
- * @return 'out' or NULL in case of error
- */
-char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
-
-/**
- * Calculate the output size needed to base64-encode x bytes.
- */
-#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
-
-#endif /* AVUTIL_BASE64_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * byte swapping routines
- */
-
-#ifndef AVUTIL_BSWAP_H
-#define AVUTIL_BSWAP_H
-
-#include <stdint.h>
-#include "libavutil/avconfig.h"
-#include "attributes.h"
-
-#ifdef HAVE_AV_CONFIG_H
-
-#include "config.h"
-
-#if ARCH_ARM
-# include "arm/bswap.h"
-#elif ARCH_AVR32
-# include "avr32/bswap.h"
-#elif ARCH_BFIN
-# include "bfin/bswap.h"
-#elif ARCH_SH4
-# include "sh4/bswap.h"
-#elif ARCH_X86
-# include "x86/bswap.h"
-#endif
-
-#endif /* HAVE_AV_CONFIG_H */
-
-#define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff))
-#define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16))
-#define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32))
-
-#define AV_BSWAPC(s, x) AV_BSWAP##s##C(x)
-
-#ifndef av_bswap16
-static av_always_inline av_const uint16_t av_bswap16(uint16_t x)
-{
- x= (x>>8) | (x<<8);
- return x;
-}
-#endif
-
-#ifndef av_bswap32
-static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
-{
- x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);
- x= (x>>16) | (x<<16);
- return x;
-}
-#endif
-
-#ifndef av_bswap64
-static inline uint64_t av_const av_bswap64(uint64_t x)
-{
- union {
- uint64_t ll;
- uint32_t l[2];
- } w, r;
- w.ll = x;
- r.l[0] = av_bswap32 (w.l[1]);
- r.l[1] = av_bswap32 (w.l[0]);
- return r.ll;
-}
-#endif
-
-// be2ne ... big-endian to native-endian
-// le2ne ... little-endian to native-endian
-
-#if AV_HAVE_BIGENDIAN
-#define av_be2ne16(x) (x)
-#define av_be2ne32(x) (x)
-#define av_be2ne64(x) (x)
-#define av_le2ne16(x) av_bswap16(x)
-#define av_le2ne32(x) av_bswap32(x)
-#define av_le2ne64(x) av_bswap64(x)
-#define AV_BE2NEC(s, x) (x)
-#define AV_LE2NEC(s, x) AV_BSWAPC(s, x)
-#else
-#define av_be2ne16(x) av_bswap16(x)
-#define av_be2ne32(x) av_bswap32(x)
-#define av_be2ne64(x) av_bswap64(x)
-#define av_le2ne16(x) (x)
-#define av_le2ne32(x) (x)
-#define av_le2ne64(x) (x)
-#define AV_BE2NEC(s, x) AV_BSWAPC(s, x)
-#define AV_LE2NEC(s, x) (x)
-#endif
-
-#define AV_BE2NE16C(x) AV_BE2NEC(16, x)
-#define AV_BE2NE32C(x) AV_BE2NEC(32, x)
-#define AV_BE2NE64C(x) AV_BE2NEC(64, x)
-#define AV_LE2NE16C(x) AV_LE2NEC(16, x)
-#define AV_LE2NE32C(x) AV_LE2NEC(32, x)
-#define AV_LE2NE64C(x) AV_LE2NEC(64, x)
-
-#endif /* AVUTIL_BSWAP_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * common internal and external API header
- */
-
-#ifndef AVUTIL_COMMON_H
-#define AVUTIL_COMMON_H
-
-#include <ctype.h>
-#include <errno.h>
-#include <inttypes.h>
-#include <limits.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "attributes.h"
-#include "libavutil/avconfig.h"
-
-#if AV_HAVE_BIGENDIAN
-# define AV_NE(be, le) (be)
-#else
-# define AV_NE(be, le) (le)
-#endif
-
-//rounded division & shift
-#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
-/* assume b>0 */
-#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
-#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
-#define FFSIGN(a) ((a) > 0 ? 1 : -1)
-
-#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
-#define FFMAX3(a,b,c) FFMAX(FFMAX(a,b),c)
-#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
-#define FFMIN3(a,b,c) FFMIN(FFMIN(a,b),c)
-
-#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
-#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
-#define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1))
-
-/* misc math functions */
-extern const uint8_t ff_log2_tab[256];
-
-extern const uint8_t av_reverse[256];
-
-static av_always_inline av_const int av_log2_c(unsigned int v)
-{
- int n = 0;
- if (v & 0xffff0000) {
- v >>= 16;
- n += 16;
- }
- if (v & 0xff00) {
- v >>= 8;
- n += 8;
- }
- n += ff_log2_tab[v];
-
- return n;
-}
-
-static av_always_inline av_const int av_log2_16bit_c(unsigned int v)
-{
- int n = 0;
- if (v & 0xff00) {
- v >>= 8;
- n += 8;
- }
- n += ff_log2_tab[v];
-
- return n;
-}
-
-#ifdef HAVE_AV_CONFIG_H
-# include "config.h"
-# include "intmath.h"
-#endif
-
-/* Pull in unguarded fallback defines at the end of this file. */
-#include "common.h"
-
-/**
- * Clip a signed integer value into the amin-amax range.
- * @param a value to clip
- * @param amin minimum value of the clip range
- * @param amax maximum value of the clip range
- * @return clipped value
- */
-static av_always_inline av_const int av_clip_c(int a, int amin, int amax)
-{
- if (a < amin) return amin;
- else if (a > amax) return amax;
- else return a;
-}
-
-/**
- * Clip a signed integer value into the 0-255 range.
- * @param a value to clip
- * @return clipped value
- */
-static av_always_inline av_const uint8_t av_clip_uint8_c(int a)
-{
- if (a&(~0xFF)) return (-a)>>31;
- else return a;
-}
-
-/**
- * Clip a signed integer value into the -128,127 range.
- * @param a value to clip
- * @return clipped value
- */
-static av_always_inline av_const int8_t av_clip_int8_c(int a)
-{
- if ((a+0x80) & ~0xFF) return (a>>31) ^ 0x7F;
- else return a;
-}
-
-/**
- * Clip a signed integer value into the 0-65535 range.
- * @param a value to clip
- * @return clipped value
- */
-static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
-{
- if (a&(~0xFFFF)) return (-a)>>31;
- else return a;
-}
-
-/**
- * Clip a signed integer value into the -32768,32767 range.
- * @param a value to clip
- * @return clipped value
- */
-static av_always_inline av_const int16_t av_clip_int16_c(int a)
-{
- if ((a+0x8000) & ~0xFFFF) return (a>>31) ^ 0x7FFF;
- else return a;
-}
-
-/**
- * Clip a signed 64-bit integer value into the -2147483648,2147483647 range.
- * @param a value to clip
- * @return clipped value
- */
-static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a)
-{
- if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF;
- else return a;
-}
-
-/**
- * Clip a signed integer to an unsigned power of two range.
- * @param a value to clip
- * @param p bit position to clip at
- * @return clipped value
- */
-static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
-{
- if (a & ~((1<<p) - 1)) return -a >> 31 & ((1<<p) - 1);
- else return a;
-}
-
-/**
- * Clip a float value into the amin-amax range.
- * @param a value to clip
- * @param amin minimum value of the clip range
- * @param amax maximum value of the clip range
- * @return clipped value
- */
-static av_always_inline av_const float av_clipf_c(float a, float amin, float amax)
-{
- if (a < amin) return amin;
- else if (a > amax) return amax;
- else return a;
-}
-
-/** Compute ceil(log2(x)).
- * @param x value used to compute ceil(log2(x))
- * @return computed ceiling of log2(x)
- */
-static av_always_inline av_const int av_ceil_log2_c(int x)
-{
- return av_log2((x - 1) << 1);
-}
-
-/**
- * Count number of bits set to one in x
- * @param x value to count bits of
- * @return the number of bits set to one in x
- */
-static av_always_inline av_const int av_popcount_c(uint32_t x)
-{
- x -= (x >> 1) & 0x55555555;
- x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
- x = (x + (x >> 4)) & 0x0F0F0F0F;
- x += x >> 8;
- return (x + (x >> 16)) & 0x3F;
-}
-
-#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((d) << 24))
-#define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((a) << 24))
-
-/**
- * Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
- *
- * @param val Output value, must be an lvalue of type uint32_t.
- * @param GET_BYTE Expression reading one byte from the input.
- * Evaluated up to 7 times (4 for the currently
- * assigned Unicode range). With a memory buffer
- * input, this could be *ptr++.
- * @param ERROR Expression to be evaluated on invalid input,
- * typically a goto statement.
- */
-#define GET_UTF8(val, GET_BYTE, ERROR)\
- val= GET_BYTE;\
- {\
- int ones= 7 - av_log2(val ^ 255);\
- if(ones==1)\
- ERROR\
- val&= 127>>ones;\
- while(--ones > 0){\
- int tmp= GET_BYTE - 128;\
- if(tmp>>6)\
- ERROR\
- val= (val<<6) + tmp;\
- }\
- }
-
-/**
- * Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form.
- *
- * @param val Output value, must be an lvalue of type uint32_t.
- * @param GET_16BIT Expression returning two bytes of UTF-16 data converted
- * to native byte order. Evaluated one or two times.
- * @param ERROR Expression to be evaluated on invalid input,
- * typically a goto statement.
- */
-#define GET_UTF16(val, GET_16BIT, ERROR)\
- val = GET_16BIT;\
- {\
- unsigned int hi = val - 0xD800;\
- if (hi < 0x800) {\
- val = GET_16BIT - 0xDC00;\
- if (val > 0x3FFU || hi > 0x3FFU)\
- ERROR\
- val += (hi<<10) + 0x10000;\
- }\
- }\
-
-/*!
- * \def PUT_UTF8(val, tmp, PUT_BYTE)
- * Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).
- * \param val is an input-only argument and should be of type uint32_t. It holds
- * a UCS-4 encoded Unicode character that is to be converted to UTF-8. If
- * val is given as a function it is executed only once.
- * \param tmp is a temporary variable and should be of type uint8_t. It
- * represents an intermediate value during conversion that is to be
- * output by PUT_BYTE.
- * \param PUT_BYTE writes the converted UTF-8 bytes to any proper destination.
- * It could be a function or a statement, and uses tmp as the input byte.
- * For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be
- * executed up to 4 times for values in the valid UTF-8 range and up to
- * 7 times in the general case, depending on the length of the converted
- * Unicode character.
- */
-#define PUT_UTF8(val, tmp, PUT_BYTE)\
- {\
- int bytes, shift;\
- uint32_t in = val;\
- if (in < 0x80) {\
- tmp = in;\
- PUT_BYTE\
- } else {\
- bytes = (av_log2(in) + 4) / 5;\
- shift = (bytes - 1) * 6;\
- tmp = (256 - (256 >> bytes)) | (in >> shift);\
- PUT_BYTE\
- while (shift >= 6) {\
- shift -= 6;\
- tmp = 0x80 | ((in >> shift) & 0x3f);\
- PUT_BYTE\
- }\
- }\
- }
-
-/*!
- * \def PUT_UTF16(val, tmp, PUT_16BIT)
- * Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes).
- * \param val is an input-only argument and should be of type uint32_t. It holds
- * a UCS-4 encoded Unicode character that is to be converted to UTF-16. If
- * val is given as a function it is executed only once.
- * \param tmp is a temporary variable and should be of type uint16_t. It
- * represents an intermediate value during conversion that is to be
- * output by PUT_16BIT.
- * \param PUT_16BIT writes the converted UTF-16 data to any proper destination
- * in desired endianness. It could be a function or a statement, and uses tmp
- * as the input byte. For example, PUT_BYTE could be "*output++ = tmp;"
- * PUT_BYTE will be executed 1 or 2 times depending on input character.
- */
-#define PUT_UTF16(val, tmp, PUT_16BIT)\
- {\
- uint32_t in = val;\
- if (in < 0x10000) {\
- tmp = in;\
- PUT_16BIT\
- } else {\
- tmp = 0xD800 | ((in - 0x10000) >> 10);\
- PUT_16BIT\
- tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
- PUT_16BIT\
- }\
- }\
-
-
-
-#include "mem.h"
-
-#ifdef HAVE_AV_CONFIG_H
-# include "internal.h"
-#endif /* HAVE_AV_CONFIG_H */
-
-#endif /* AVUTIL_COMMON_H */
-
-/*
- * The following definitions are outside the multiple inclusion guard
- * to ensure they are immediately available in intmath.h.
- */
-
-#ifndef av_log2
-# define av_log2 av_log2_c
-#endif
-#ifndef av_log2_16bit
-# define av_log2_16bit av_log2_16bit_c
-#endif
-#ifndef av_ceil_log2
-# define av_ceil_log2 av_ceil_log2_c
-#endif
-#ifndef av_clip
-# define av_clip av_clip_c
-#endif
-#ifndef av_clip_uint8
-# define av_clip_uint8 av_clip_uint8_c
-#endif
-#ifndef av_clip_int8
-# define av_clip_int8 av_clip_int8_c
-#endif
-#ifndef av_clip_uint16
-# define av_clip_uint16 av_clip_uint16_c
-#endif
-#ifndef av_clip_int16
-# define av_clip_int16 av_clip_int16_c
-#endif
-#ifndef av_clipl_int32
-# define av_clipl_int32 av_clipl_int32_c
-#endif
-#ifndef av_clip_uintp2
-# define av_clip_uintp2 av_clip_uintp2_c
-#endif
-#ifndef av_clipf
-# define av_clipf av_clipf_c
-#endif
-#ifndef av_popcount
-# define av_popcount av_popcount_c
-#endif
+++ /dev/null
-/*
- * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_CPU_H
-#define AVUTIL_CPU_H
-
-#define AV_CPU_FLAG_FORCE 0x80000000 /* force usage of selected flags (OR) */
-
- /* lower 16 bits - CPU features */
-#define AV_CPU_FLAG_MMX 0x0001 ///< standard MMX
-#define AV_CPU_FLAG_MMX2 0x0002 ///< SSE integer functions or AMD MMX ext
-#define AV_CPU_FLAG_3DNOW 0x0004 ///< AMD 3DNOW
-#define AV_CPU_FLAG_SSE 0x0008 ///< SSE functions
-#define AV_CPU_FLAG_SSE2 0x0010 ///< PIV SSE2 functions
-#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
-#define AV_CPU_FLAG_3DNOWEXT 0x0020 ///< AMD 3DNowExt
-#define AV_CPU_FLAG_SSE3 0x0040 ///< Prescott SSE3 functions
-#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster
-#define AV_CPU_FLAG_SSSE3 0x0080 ///< Conroe SSSE3 functions
-#define AV_CPU_FLAG_ATOM 0x10000000 ///< Atom processor, some SSSE3 instructions are slower
-#define AV_CPU_FLAG_SSE4 0x0100 ///< Penryn SSE4.1 functions
-#define AV_CPU_FLAG_SSE42 0x0200 ///< Nehalem SSE4.2 functions
-#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
-#define AV_CPU_FLAG_IWMMXT 0x0100 ///< XScale IWMMXT
-#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard
-
-/**
- * Return the flags which specify extensions supported by the CPU.
- */
-int av_get_cpu_flags(void);
-
-/* The following CPU-specific functions shall not be called directly. */
-int ff_get_cpu_flags_arm(void);
-int ff_get_cpu_flags_ppc(void);
-int ff_get_cpu_flags_x86(void);
-
-#endif /* AVUTIL_CPU_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_CRC_H
-#define AVUTIL_CRC_H
-
-#include <stdint.h>
-#include <stddef.h>
-#include "attributes.h"
-
-typedef uint32_t AVCRC;
-
-typedef enum {
- AV_CRC_8_ATM,
- AV_CRC_16_ANSI,
- AV_CRC_16_CCITT,
- AV_CRC_32_IEEE,
- AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */
- AV_CRC_MAX, /*< Not part of public API! Do not use outside libavutil. */
-}AVCRCId;
-
-int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
-const AVCRC *av_crc_get_table(AVCRCId crc_id);
-uint32_t av_crc(const AVCRC *ctx, uint32_t start_crc, const uint8_t *buffer, size_t length) av_pure;
-
-#endif /* AVUTIL_CRC_H */
-
+++ /dev/null
-/*
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * Public dictionary API.
- */
-
-#ifndef AVUTIL_DICT_H
-#define AVUTIL_DICT_H
-
-#define AV_DICT_MATCH_CASE 1
-#define AV_DICT_IGNORE_SUFFIX 2
-#define AV_DICT_DONT_STRDUP_KEY 4
-#define AV_DICT_DONT_STRDUP_VAL 8
-#define AV_DICT_DONT_OVERWRITE 16 ///< Don't overwrite existing entries.
-#define AV_DICT_APPEND 32 /**< If the entry already exists, append to it. Note that no
- delimiter is added, the strings are simply concatenated. */
-
-typedef struct {
- char *key;
- char *value;
-} AVDictionaryEntry;
-
-typedef struct AVDictionary AVDictionary;
-
-/**
- * Get a dictionary entry with matching key.
- *
- * @param prev Set to the previous matching element to find the next.
- * If set to NULL the first matching element is returned.
- * @param flags Allows case as well as suffix-insensitive comparisons.
- * @return Found entry or NULL, changing key or value leads to undefined behavior.
- */
-AVDictionaryEntry *
-av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags);
-
-/**
- * Set the given entry in *pm, overwriting an existing entry.
- *
- * @param pm pointer to a pointer to a dictionary struct. If *pm is NULL
- * a dictionary struct is allocated and put in *pm.
- * @param key entry key to add to *pm (will be av_strduped depending on flags)
- * @param value entry value to add to *pm (will be av_strduped depending on flags).
- * Passing a NULL value will cause an existing tag to be deleted.
- * @return >= 0 on success otherwise an error code <0
- */
-int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags);
-
-/**
- * Copy entries from one AVDictionary struct into another.
- * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL,
- * this function will allocate a struct for you and put it in *dst
- * @param src pointer to source AVDictionary struct
- * @param flags flags to use when setting entries in *dst
- * @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag
- */
-void av_dict_copy(AVDictionary **dst, AVDictionary *src, int flags);
-
-/**
- * Free all the memory allocated for an AVDictionary struct.
- */
-void av_dict_free(AVDictionary **m);
-
-#endif // AVUTIL_DICT_H
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * error code definitions
- */
-
-#ifndef AVUTIL_ERROR_H
-#define AVUTIL_ERROR_H
-
-#include <errno.h>
-#include "avutil.h"
-
-/* error handling */
-#if EDOM > 0
-#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions.
-#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
-#else
-/* Some platforms have E* and errno already negated. */
-#define AVERROR(e) (e)
-#define AVUNERROR(e) (e)
-#endif
-
-#define AVERROR_BSF_NOT_FOUND (-MKTAG(0xF8,'B','S','F')) ///< Bitstream filter not found
-#define AVERROR_DECODER_NOT_FOUND (-MKTAG(0xF8,'D','E','C')) ///< Decoder not found
-#define AVERROR_DEMUXER_NOT_FOUND (-MKTAG(0xF8,'D','E','M')) ///< Demuxer not found
-#define AVERROR_ENCODER_NOT_FOUND (-MKTAG(0xF8,'E','N','C')) ///< Encoder not found
-#define AVERROR_EOF (-MKTAG( 'E','O','F',' ')) ///< End of file
-#define AVERROR_EXIT (-MKTAG( 'E','X','I','T')) ///< Immediate exit was requested; the called function should not be restarted
-#define AVERROR_FILTER_NOT_FOUND (-MKTAG(0xF8,'F','I','L')) ///< Filter not found
-#define AVERROR_INVALIDDATA (-MKTAG( 'I','N','D','A')) ///< Invalid data found when processing input
-#define AVERROR_MUXER_NOT_FOUND (-MKTAG(0xF8,'M','U','X')) ///< Muxer not found
-#define AVERROR_OPTION_NOT_FOUND (-MKTAG(0xF8,'O','P','T')) ///< Option not found
-#define AVERROR_PATCHWELCOME (-MKTAG( 'P','A','W','E')) ///< Not yet implemented in Libav, patches welcome
-#define AVERROR_PROTOCOL_NOT_FOUND (-MKTAG(0xF8,'P','R','O')) ///< Protocol not found
-#define AVERROR_STREAM_NOT_FOUND (-MKTAG(0xF8,'S','T','R')) ///< Stream not found
-
-/**
- * Put a description of the AVERROR code errnum in errbuf.
- * In case of failure the global variable errno is set to indicate the
- * error. Even in case of failure av_strerror() will print a generic
- * error message indicating the errnum provided to errbuf.
- *
- * @param errnum error code to describe
- * @param errbuf buffer to which description is written
- * @param errbuf_size the size in bytes of errbuf
- * @return 0 on success, a negative value if a description for errnum
- * cannot be found
- */
-int av_strerror(int errnum, char *errbuf, size_t errbuf_size);
-
-#endif /* AVUTIL_ERROR_H */
+++ /dev/null
-/*
- * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * simple arithmetic expression evaluator
- */
-
-#ifndef AVUTIL_EVAL_H
-#define AVUTIL_EVAL_H
-
-#include "avutil.h"
-
-typedef struct AVExpr AVExpr;
-
-/**
- * Parse and evaluate an expression.
- * Note, this is significantly slower than av_expr_eval().
- *
- * @param res a pointer to a double where is put the result value of
- * the expression, or NAN in case of error
- * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"
- * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0}
- * @param const_values a zero terminated array of values for the identifiers from const_names
- * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers
- * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument
- * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers
- * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments
- * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2
- * @param log_ctx parent logging context
- * @return 0 in case of success, a negative value corresponding to an
- * AVERROR code otherwise
- */
-int av_expr_parse_and_eval(double *res, const char *s,
- const char * const *const_names, const double *const_values,
- const char * const *func1_names, double (* const *funcs1)(void *, double),
- const char * const *func2_names, double (* const *funcs2)(void *, double, double),
- void *opaque, int log_offset, void *log_ctx);
-
-/**
- * Parse an expression.
- *
- * @param expr a pointer where is put an AVExpr containing the parsed
- * value in case of successfull parsing, or NULL otherwise.
- * The pointed to AVExpr must be freed with av_expr_free() by the user
- * when it is not needed anymore.
- * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"
- * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0}
- * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers
- * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument
- * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers
- * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments
- * @param log_ctx parent logging context
- * @return 0 in case of success, a negative value corresponding to an
- * AVERROR code otherwise
- */
-int av_expr_parse(AVExpr **expr, const char *s,
- const char * const *const_names,
- const char * const *func1_names, double (* const *funcs1)(void *, double),
- const char * const *func2_names, double (* const *funcs2)(void *, double, double),
- int log_offset, void *log_ctx);
-
-/**
- * Evaluate a previously parsed expression.
- *
- * @param const_values a zero terminated array of values for the identifiers from av_expr_parse() const_names
- * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2
- * @return the value of the expression
- */
-double av_expr_eval(AVExpr *e, const double *const_values, void *opaque);
-
-/**
- * Free a parsed expression previously created with av_expr_parse().
- */
-void av_expr_free(AVExpr *e);
-
-/**
- * Parse the string in numstr and return its value as a double. If
- * the string is empty, contains only whitespaces, or does not contain
- * an initial substring that has the expected syntax for a
- * floating-point number, no conversion is performed. In this case,
- * returns a value of zero and the value returned in tail is the value
- * of numstr.
- *
- * @param numstr a string representing a number, may contain one of
- * the International System number postfixes, for example 'K', 'M',
- * 'G'. If 'i' is appended after the postfix, powers of 2 are used
- * instead of powers of 10. The 'B' postfix multiplies the value for
- * 8, and can be appended after another postfix or used alone. This
- * allows using for example 'KB', 'MiB', 'G' and 'B' as postfix.
- * @param tail if non-NULL puts here the pointer to the char next
- * after the last parsed character
- */
-double av_strtod(const char *numstr, char **tail);
-
-#endif /* AVUTIL_EVAL_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * a very simple circular buffer FIFO implementation
- */
-
-#ifndef AVUTIL_FIFO_H
-#define AVUTIL_FIFO_H
-
-#include <stdint.h>
-
-typedef struct AVFifoBuffer {
- uint8_t *buffer;
- uint8_t *rptr, *wptr, *end;
- uint32_t rndx, wndx;
-} AVFifoBuffer;
-
-/**
- * Initialize an AVFifoBuffer.
- * @param size of FIFO
- * @return AVFifoBuffer or NULL in case of memory allocation failure
- */
-AVFifoBuffer *av_fifo_alloc(unsigned int size);
-
-/**
- * Free an AVFifoBuffer.
- * @param *f AVFifoBuffer to free
- */
-void av_fifo_free(AVFifoBuffer *f);
-
-/**
- * Reset the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied.
- * @param *f AVFifoBuffer to reset
- */
-void av_fifo_reset(AVFifoBuffer *f);
-
-/**
- * Return the amount of data in bytes in the AVFifoBuffer, that is the
- * amount of data you can read from it.
- * @param *f AVFifoBuffer to read from
- * @return size
- */
-int av_fifo_size(AVFifoBuffer *f);
-
-/**
- * Return the amount of space in bytes in the AVFifoBuffer, that is the
- * amount of data you can write into it.
- * @param *f AVFifoBuffer to write into
- * @return size
- */
-int av_fifo_space(AVFifoBuffer *f);
-
-/**
- * Feed data from an AVFifoBuffer to a user-supplied callback.
- * @param *f AVFifoBuffer to read from
- * @param buf_size number of bytes to read
- * @param *func generic read function
- * @param *dest data destination
- */
-int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
-
-/**
- * Feed data from a user-supplied callback to an AVFifoBuffer.
- * @param *f AVFifoBuffer to write to
- * @param *src data source; non-const since it may be used as a
- * modifiable context by the function defined in func
- * @param size number of bytes to write
- * @param *func generic write function; the first parameter is src,
- * the second is dest_buf, the third is dest_buf_size.
- * func must return the number of bytes written to dest_buf, or <= 0 to
- * indicate no more data available to write.
- * If func is NULL, src is interpreted as a simple byte array for source data.
- * @return the number of bytes written to the FIFO
- */
-int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int));
-
-/**
- * Resize an AVFifoBuffer.
- * @param *f AVFifoBuffer to resize
- * @param size new AVFifoBuffer size in bytes
- * @return <0 for failure, >=0 otherwise
- */
-int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size);
-
-/**
- * Read and discard the specified amount of data from an AVFifoBuffer.
- * @param *f AVFifoBuffer to read from
- * @param size amount of data to read in bytes
- */
-void av_fifo_drain(AVFifoBuffer *f, int size);
-
-static inline uint8_t av_fifo_peek(AVFifoBuffer *f, int offs)
-{
- uint8_t *ptr = f->rptr + offs;
- if (ptr >= f->end)
- ptr -= f->end - f->buffer;
- return *ptr;
-}
-#endif /* AVUTIL_FIFO_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_FILE_H
-#define AVUTIL_FILE_H
-
-#include "avutil.h"
-
-/**
- * @file
- * Misc file utilities.
- */
-
-/**
- * Read the file with name filename, and put its content in a newly
- * allocated buffer or map it with mmap() when available.
- * In case of success set *bufptr to the read or mmapped buffer, and
- * *size to the size in bytes of the buffer in *bufptr.
- * The returned buffer must be released with av_file_unmap().
- *
- * @param log_offset loglevel offset used for logging
- * @param log_ctx context used for logging
- * @return a non negative number in case of success, a negative value
- * corresponding to an AVERROR error code in case of failure
- */
-int av_file_map(const char *filename, uint8_t **bufptr, size_t *size,
- int log_offset, void *log_ctx);
-
-/**
- * Unmap or free the buffer bufptr created by av_file_map().
- *
- * @param size size in bytes of bufptr, must be the same as returned
- * by av_file_map()
- */
-void av_file_unmap(uint8_t *bufptr, size_t size);
-
-#endif /* AVUTIL_FILE_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_IMGUTILS_H
-#define AVUTIL_IMGUTILS_H
-
-/**
- * @file
- * misc image utilities
- */
-
-#include "avutil.h"
-#include "pixdesc.h"
-
-/**
- * Compute the max pixel step for each plane of an image with a
- * format described by pixdesc.
- *
- * The pixel step is the distance in bytes between the first byte of
- * the group of bytes which describe a pixel component and the first
- * byte of the successive group in the same plane for the same
- * component.
- *
- * @param max_pixsteps an array which is filled with the max pixel step
- * for each plane. Since a plane may contain different pixel
- * components, the computed max_pixsteps[plane] is relative to the
- * component in the plane with the max pixel step.
- * @param max_pixstep_comps an array which is filled with the component
- * for each plane which has the max pixel step. May be NULL.
- */
-void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
- const AVPixFmtDescriptor *pixdesc);
-
-/**
- * Compute the size of an image line with format pix_fmt and width
- * width for the plane plane.
- *
- * @return the computed size in bytes
- */
-int av_image_get_linesize(enum PixelFormat pix_fmt, int width, int plane);
-
-/**
- * Fill plane linesizes for an image with pixel format pix_fmt and
- * width width.
- *
- * @param linesizes array to be filled with the linesize for each plane
- * @return >= 0 in case of success, a negative error code otherwise
- */
-int av_image_fill_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width);
-
-/**
- * Fill plane data pointers for an image with pixel format pix_fmt and
- * height height.
- *
- * @param data pointers array to be filled with the pointer for each image plane
- * @param ptr the pointer to a buffer which will contain the image
- * @param linesizes the array containing the linesize for each
- * plane, should be filled by av_image_fill_linesizes()
- * @return the size in bytes required for the image buffer, a negative
- * error code in case of failure
- */
-int av_image_fill_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
- uint8_t *ptr, const int linesizes[4]);
-
-/**
- * Allocate an image with size w and h and pixel format pix_fmt, and
- * fill pointers and linesizes accordingly.
- * The allocated image buffer has to be freed by using
- * av_freep(&pointers[0]).
- *
- * @param align the value to use for buffer size alignment
- * @return the size in bytes required for the image buffer, a negative
- * error code in case of failure
- */
-int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
- int w, int h, enum PixelFormat pix_fmt, int align);
-
-/**
- * Copy image plane from src to dst.
- * That is, copy "height" number of lines of "bytewidth" bytes each.
- * The first byte of each successive line is separated by *_linesize
- * bytes.
- *
- * @param dst_linesize linesize for the image plane in dst
- * @param src_linesize linesize for the image plane in src
- */
-void av_image_copy_plane(uint8_t *dst, int dst_linesize,
- const uint8_t *src, int src_linesize,
- int bytewidth, int height);
-
-/**
- * Copy image in src_data to dst_data.
- *
- * @param dst_linesize linesizes for the image in dst_data
- * @param src_linesize linesizes for the image in src_data
- */
-void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
- const uint8_t *src_data[4], const int src_linesizes[4],
- enum PixelFormat pix_fmt, int width, int height);
-
-/**
- * Check if the given dimension of an image is valid, meaning that all
- * bytes of the image can be addressed with a signed int.
- *
- * @param w the width of the picture
- * @param h the height of the picture
- * @param log_offset the offset to sum to the log level for logging with log_ctx
- * @param log_ctx the parent logging context, it may be NULL
- * @return >= 0 if valid, a negative error code otherwise
- */
-int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
-
-int ff_set_systematic_pal2(uint32_t pal[256], enum PixelFormat pix_fmt);
-
-#endif /* AVUTIL_IMGUTILS_H */
+++ /dev/null
-/*
- * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_INTFLOAT_READWRITE_H
-#define AVUTIL_INTFLOAT_READWRITE_H
-
-#include <stdint.h>
-#include "attributes.h"
-
-/* IEEE 80 bits extended float */
-typedef struct AVExtFloat {
- uint8_t exponent[2];
- uint8_t mantissa[8];
-} AVExtFloat;
-
-double av_int2dbl(int64_t v) av_const;
-float av_int2flt(int32_t v) av_const;
-double av_ext2dbl(const AVExtFloat ext) av_const;
-int64_t av_dbl2int(double d) av_const;
-int32_t av_flt2int(float d) av_const;
-AVExtFloat av_dbl2ext(double d) av_const;
-
-#endif /* AVUTIL_INTFLOAT_READWRITE_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_INTREADWRITE_H
-#define AVUTIL_INTREADWRITE_H
-
-#include <stdint.h>
-#include "libavutil/avconfig.h"
-#include "attributes.h"
-#include "bswap.h"
-
-typedef union {
- uint64_t u64;
- uint32_t u32[2];
- uint16_t u16[4];
- uint8_t u8 [8];
- double f64;
- float f32[2];
-} av_alias av_alias64;
-
-typedef union {
- uint32_t u32;
- uint16_t u16[2];
- uint8_t u8 [4];
- float f32;
-} av_alias av_alias32;
-
-typedef union {
- uint16_t u16;
- uint8_t u8 [2];
-} av_alias av_alias16;
-
-/*
- * Arch-specific headers can provide any combination of
- * AV_[RW][BLN](16|24|32|64) and AV_(COPY|SWAP|ZERO)(64|128) macros.
- * Preprocessor symbols must be defined, even if these are implemented
- * as inline functions.
- */
-
-#ifdef HAVE_AV_CONFIG_H
-
-#include "config.h"
-
-#if ARCH_ARM
-# include "arm/intreadwrite.h"
-#elif ARCH_AVR32
-# include "avr32/intreadwrite.h"
-#elif ARCH_MIPS
-# include "mips/intreadwrite.h"
-#elif ARCH_PPC
-# include "ppc/intreadwrite.h"
-#elif ARCH_TOMI
-# include "tomi/intreadwrite.h"
-#elif ARCH_X86
-# include "x86/intreadwrite.h"
-#endif
-
-#endif /* HAVE_AV_CONFIG_H */
-
-/*
- * Map AV_RNXX <-> AV_R[BL]XX for all variants provided by per-arch headers.
- */
-
-#if AV_HAVE_BIGENDIAN
-
-# if defined(AV_RN16) && !defined(AV_RB16)
-# define AV_RB16(p) AV_RN16(p)
-# elif !defined(AV_RN16) && defined(AV_RB16)
-# define AV_RN16(p) AV_RB16(p)
-# endif
-
-# if defined(AV_WN16) && !defined(AV_WB16)
-# define AV_WB16(p, v) AV_WN16(p, v)
-# elif !defined(AV_WN16) && defined(AV_WB16)
-# define AV_WN16(p, v) AV_WB16(p, v)
-# endif
-
-# if defined(AV_RN24) && !defined(AV_RB24)
-# define AV_RB24(p) AV_RN24(p)
-# elif !defined(AV_RN24) && defined(AV_RB24)
-# define AV_RN24(p) AV_RB24(p)
-# endif
-
-# if defined(AV_WN24) && !defined(AV_WB24)
-# define AV_WB24(p, v) AV_WN24(p, v)
-# elif !defined(AV_WN24) && defined(AV_WB24)
-# define AV_WN24(p, v) AV_WB24(p, v)
-# endif
-
-# if defined(AV_RN32) && !defined(AV_RB32)
-# define AV_RB32(p) AV_RN32(p)
-# elif !defined(AV_RN32) && defined(AV_RB32)
-# define AV_RN32(p) AV_RB32(p)
-# endif
-
-# if defined(AV_WN32) && !defined(AV_WB32)
-# define AV_WB32(p, v) AV_WN32(p, v)
-# elif !defined(AV_WN32) && defined(AV_WB32)
-# define AV_WN32(p, v) AV_WB32(p, v)
-# endif
-
-# if defined(AV_RN64) && !defined(AV_RB64)
-# define AV_RB64(p) AV_RN64(p)
-# elif !defined(AV_RN64) && defined(AV_RB64)
-# define AV_RN64(p) AV_RB64(p)
-# endif
-
-# if defined(AV_WN64) && !defined(AV_WB64)
-# define AV_WB64(p, v) AV_WN64(p, v)
-# elif !defined(AV_WN64) && defined(AV_WB64)
-# define AV_WN64(p, v) AV_WB64(p, v)
-# endif
-
-#else /* AV_HAVE_BIGENDIAN */
-
-# if defined(AV_RN16) && !defined(AV_RL16)
-# define AV_RL16(p) AV_RN16(p)
-# elif !defined(AV_RN16) && defined(AV_RL16)
-# define AV_RN16(p) AV_RL16(p)
-# endif
-
-# if defined(AV_WN16) && !defined(AV_WL16)
-# define AV_WL16(p, v) AV_WN16(p, v)
-# elif !defined(AV_WN16) && defined(AV_WL16)
-# define AV_WN16(p, v) AV_WL16(p, v)
-# endif
-
-# if defined(AV_RN24) && !defined(AV_RL24)
-# define AV_RL24(p) AV_RN24(p)
-# elif !defined(AV_RN24) && defined(AV_RL24)
-# define AV_RN24(p) AV_RL24(p)
-# endif
-
-# if defined(AV_WN24) && !defined(AV_WL24)
-# define AV_WL24(p, v) AV_WN24(p, v)
-# elif !defined(AV_WN24) && defined(AV_WL24)
-# define AV_WN24(p, v) AV_WL24(p, v)
-# endif
-
-# if defined(AV_RN32) && !defined(AV_RL32)
-# define AV_RL32(p) AV_RN32(p)
-# elif !defined(AV_RN32) && defined(AV_RL32)
-# define AV_RN32(p) AV_RL32(p)
-# endif
-
-# if defined(AV_WN32) && !defined(AV_WL32)
-# define AV_WL32(p, v) AV_WN32(p, v)
-# elif !defined(AV_WN32) && defined(AV_WL32)
-# define AV_WN32(p, v) AV_WL32(p, v)
-# endif
-
-# if defined(AV_RN64) && !defined(AV_RL64)
-# define AV_RL64(p) AV_RN64(p)
-# elif !defined(AV_RN64) && defined(AV_RL64)
-# define AV_RN64(p) AV_RL64(p)
-# endif
-
-# if defined(AV_WN64) && !defined(AV_WL64)
-# define AV_WL64(p, v) AV_WN64(p, v)
-# elif !defined(AV_WN64) && defined(AV_WL64)
-# define AV_WN64(p, v) AV_WL64(p, v)
-# endif
-
-#endif /* !AV_HAVE_BIGENDIAN */
-
-/*
- * Define AV_[RW]N helper macros to simplify definitions not provided
- * by per-arch headers.
- */
-
-#if defined(__GNUC__) && !defined(__TI_COMPILER_VERSION__)
-
-union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias;
-union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias;
-union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias;
-
-# define AV_RN(s, p) (((const union unaligned_##s *) (p))->l)
-# define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v))
-
-#elif defined(__DECC)
-
-# define AV_RN(s, p) (*((const __unaligned uint##s##_t*)(p)))
-# define AV_WN(s, p, v) (*((__unaligned uint##s##_t*)(p)) = (v))
-
-#elif AV_HAVE_FAST_UNALIGNED
-
-# define AV_RN(s, p) (((const av_alias##s*)(p))->u##s)
-# define AV_WN(s, p, v) (((av_alias##s*)(p))->u##s = (v))
-
-#else
-
-#ifndef AV_RB16
-# define AV_RB16(x) \
- ((((const uint8_t*)(x))[0] << 8) | \
- ((const uint8_t*)(x))[1])
-#endif
-#ifndef AV_WB16
-# define AV_WB16(p, d) do { \
- ((uint8_t*)(p))[1] = (d); \
- ((uint8_t*)(p))[0] = (d)>>8; \
- } while(0)
-#endif
-
-#ifndef AV_RL16
-# define AV_RL16(x) \
- ((((const uint8_t*)(x))[1] << 8) | \
- ((const uint8_t*)(x))[0])
-#endif
-#ifndef AV_WL16
-# define AV_WL16(p, d) do { \
- ((uint8_t*)(p))[0] = (d); \
- ((uint8_t*)(p))[1] = (d)>>8; \
- } while(0)
-#endif
-
-#ifndef AV_RB32
-# define AV_RB32(x) \
- (((uint32_t)((const uint8_t*)(x))[0] << 24) | \
- (((const uint8_t*)(x))[1] << 16) | \
- (((const uint8_t*)(x))[2] << 8) | \
- ((const uint8_t*)(x))[3])
-#endif
-#ifndef AV_WB32
-# define AV_WB32(p, d) do { \
- ((uint8_t*)(p))[3] = (d); \
- ((uint8_t*)(p))[2] = (d)>>8; \
- ((uint8_t*)(p))[1] = (d)>>16; \
- ((uint8_t*)(p))[0] = (d)>>24; \
- } while(0)
-#endif
-
-#ifndef AV_RL32
-# define AV_RL32(x) \
- (((uint32_t)((const uint8_t*)(x))[3] << 24) | \
- (((const uint8_t*)(x))[2] << 16) | \
- (((const uint8_t*)(x))[1] << 8) | \
- ((const uint8_t*)(x))[0])
-#endif
-#ifndef AV_WL32
-# define AV_WL32(p, d) do { \
- ((uint8_t*)(p))[0] = (d); \
- ((uint8_t*)(p))[1] = (d)>>8; \
- ((uint8_t*)(p))[2] = (d)>>16; \
- ((uint8_t*)(p))[3] = (d)>>24; \
- } while(0)
-#endif
-
-#ifndef AV_RB64
-# define AV_RB64(x) \
- (((uint64_t)((const uint8_t*)(x))[0] << 56) | \
- ((uint64_t)((const uint8_t*)(x))[1] << 48) | \
- ((uint64_t)((const uint8_t*)(x))[2] << 40) | \
- ((uint64_t)((const uint8_t*)(x))[3] << 32) | \
- ((uint64_t)((const uint8_t*)(x))[4] << 24) | \
- ((uint64_t)((const uint8_t*)(x))[5] << 16) | \
- ((uint64_t)((const uint8_t*)(x))[6] << 8) | \
- (uint64_t)((const uint8_t*)(x))[7])
-#endif
-#ifndef AV_WB64
-# define AV_WB64(p, d) do { \
- ((uint8_t*)(p))[7] = (d); \
- ((uint8_t*)(p))[6] = (d)>>8; \
- ((uint8_t*)(p))[5] = (d)>>16; \
- ((uint8_t*)(p))[4] = (d)>>24; \
- ((uint8_t*)(p))[3] = (d)>>32; \
- ((uint8_t*)(p))[2] = (d)>>40; \
- ((uint8_t*)(p))[1] = (d)>>48; \
- ((uint8_t*)(p))[0] = (d)>>56; \
- } while(0)
-#endif
-
-#ifndef AV_RL64
-# define AV_RL64(x) \
- (((uint64_t)((const uint8_t*)(x))[7] << 56) | \
- ((uint64_t)((const uint8_t*)(x))[6] << 48) | \
- ((uint64_t)((const uint8_t*)(x))[5] << 40) | \
- ((uint64_t)((const uint8_t*)(x))[4] << 32) | \
- ((uint64_t)((const uint8_t*)(x))[3] << 24) | \
- ((uint64_t)((const uint8_t*)(x))[2] << 16) | \
- ((uint64_t)((const uint8_t*)(x))[1] << 8) | \
- (uint64_t)((const uint8_t*)(x))[0])
-#endif
-#ifndef AV_WL64
-# define AV_WL64(p, d) do { \
- ((uint8_t*)(p))[0] = (d); \
- ((uint8_t*)(p))[1] = (d)>>8; \
- ((uint8_t*)(p))[2] = (d)>>16; \
- ((uint8_t*)(p))[3] = (d)>>24; \
- ((uint8_t*)(p))[4] = (d)>>32; \
- ((uint8_t*)(p))[5] = (d)>>40; \
- ((uint8_t*)(p))[6] = (d)>>48; \
- ((uint8_t*)(p))[7] = (d)>>56; \
- } while(0)
-#endif
-
-#if AV_HAVE_BIGENDIAN
-# define AV_RN(s, p) AV_RB##s(p)
-# define AV_WN(s, p, v) AV_WB##s(p, v)
-#else
-# define AV_RN(s, p) AV_RL##s(p)
-# define AV_WN(s, p, v) AV_WL##s(p, v)
-#endif
-
-#endif /* HAVE_FAST_UNALIGNED */
-
-#ifndef AV_RN16
-# define AV_RN16(p) AV_RN(16, p)
-#endif
-
-#ifndef AV_RN32
-# define AV_RN32(p) AV_RN(32, p)
-#endif
-
-#ifndef AV_RN64
-# define AV_RN64(p) AV_RN(64, p)
-#endif
-
-#ifndef AV_WN16
-# define AV_WN16(p, v) AV_WN(16, p, v)
-#endif
-
-#ifndef AV_WN32
-# define AV_WN32(p, v) AV_WN(32, p, v)
-#endif
-
-#ifndef AV_WN64
-# define AV_WN64(p, v) AV_WN(64, p, v)
-#endif
-
-#if AV_HAVE_BIGENDIAN
-# define AV_RB(s, p) AV_RN##s(p)
-# define AV_WB(s, p, v) AV_WN##s(p, v)
-# define AV_RL(s, p) av_bswap##s(AV_RN##s(p))
-# define AV_WL(s, p, v) AV_WN##s(p, av_bswap##s(v))
-#else
-# define AV_RB(s, p) av_bswap##s(AV_RN##s(p))
-# define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v))
-# define AV_RL(s, p) AV_RN##s(p)
-# define AV_WL(s, p, v) AV_WN##s(p, v)
-#endif
-
-#define AV_RB8(x) (((const uint8_t*)(x))[0])
-#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0)
-
-#define AV_RL8(x) AV_RB8(x)
-#define AV_WL8(p, d) AV_WB8(p, d)
-
-#ifndef AV_RB16
-# define AV_RB16(p) AV_RB(16, p)
-#endif
-#ifndef AV_WB16
-# define AV_WB16(p, v) AV_WB(16, p, v)
-#endif
-
-#ifndef AV_RL16
-# define AV_RL16(p) AV_RL(16, p)
-#endif
-#ifndef AV_WL16
-# define AV_WL16(p, v) AV_WL(16, p, v)
-#endif
-
-#ifndef AV_RB32
-# define AV_RB32(p) AV_RB(32, p)
-#endif
-#ifndef AV_WB32
-# define AV_WB32(p, v) AV_WB(32, p, v)
-#endif
-
-#ifndef AV_RL32
-# define AV_RL32(p) AV_RL(32, p)
-#endif
-#ifndef AV_WL32
-# define AV_WL32(p, v) AV_WL(32, p, v)
-#endif
-
-#ifndef AV_RB64
-# define AV_RB64(p) AV_RB(64, p)
-#endif
-#ifndef AV_WB64
-# define AV_WB64(p, v) AV_WB(64, p, v)
-#endif
-
-#ifndef AV_RL64
-# define AV_RL64(p) AV_RL(64, p)
-#endif
-#ifndef AV_WL64
-# define AV_WL64(p, v) AV_WL(64, p, v)
-#endif
-
-#ifndef AV_RB24
-# define AV_RB24(x) \
- ((((const uint8_t*)(x))[0] << 16) | \
- (((const uint8_t*)(x))[1] << 8) | \
- ((const uint8_t*)(x))[2])
-#endif
-#ifndef AV_WB24
-# define AV_WB24(p, d) do { \
- ((uint8_t*)(p))[2] = (d); \
- ((uint8_t*)(p))[1] = (d)>>8; \
- ((uint8_t*)(p))[0] = (d)>>16; \
- } while(0)
-#endif
-
-#ifndef AV_RL24
-# define AV_RL24(x) \
- ((((const uint8_t*)(x))[2] << 16) | \
- (((const uint8_t*)(x))[1] << 8) | \
- ((const uint8_t*)(x))[0])
-#endif
-#ifndef AV_WL24
-# define AV_WL24(p, d) do { \
- ((uint8_t*)(p))[0] = (d); \
- ((uint8_t*)(p))[1] = (d)>>8; \
- ((uint8_t*)(p))[2] = (d)>>16; \
- } while(0)
-#endif
-
-/*
- * The AV_[RW]NA macros access naturally aligned data
- * in a type-safe way.
- */
-
-#define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s)
-#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v))
-
-#ifndef AV_RN16A
-# define AV_RN16A(p) AV_RNA(16, p)
-#endif
-
-#ifndef AV_RN32A
-# define AV_RN32A(p) AV_RNA(32, p)
-#endif
-
-#ifndef AV_RN64A
-# define AV_RN64A(p) AV_RNA(64, p)
-#endif
-
-#ifndef AV_WN16A
-# define AV_WN16A(p, v) AV_WNA(16, p, v)
-#endif
-
-#ifndef AV_WN32A
-# define AV_WN32A(p, v) AV_WNA(32, p, v)
-#endif
-
-#ifndef AV_WN64A
-# define AV_WN64A(p, v) AV_WNA(64, p, v)
-#endif
-
-/* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be
- * naturally aligned. They may be implemented using MMX,
- * so emms_c() must be called before using any float code
- * afterwards.
- */
-
-#define AV_COPY(n, d, s) \
- (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)
-
-#ifndef AV_COPY16
-# define AV_COPY16(d, s) AV_COPY(16, d, s)
-#endif
-
-#ifndef AV_COPY32
-# define AV_COPY32(d, s) AV_COPY(32, d, s)
-#endif
-
-#ifndef AV_COPY64
-# define AV_COPY64(d, s) AV_COPY(64, d, s)
-#endif
-
-#ifndef AV_COPY128
-# define AV_COPY128(d, s) \
- do { \
- AV_COPY64(d, s); \
- AV_COPY64((char*)(d)+8, (char*)(s)+8); \
- } while(0)
-#endif
-
-#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))
-
-#ifndef AV_SWAP64
-# define AV_SWAP64(a, b) AV_SWAP(64, a, b)
-#endif
-
-#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0)
-
-#ifndef AV_ZERO16
-# define AV_ZERO16(d) AV_ZERO(16, d)
-#endif
-
-#ifndef AV_ZERO32
-# define AV_ZERO32(d) AV_ZERO(32, d)
-#endif
-
-#ifndef AV_ZERO64
-# define AV_ZERO64(d) AV_ZERO(64, d)
-#endif
-
-#ifndef AV_ZERO128
-# define AV_ZERO128(d) \
- do { \
- AV_ZERO64(d); \
- AV_ZERO64((char*)(d)+8); \
- } while(0)
-#endif
-
-#endif /* AVUTIL_INTREADWRITE_H */
+++ /dev/null
-/*
- * Lagged Fibonacci PRNG
- * Copyright (c) 2008 Michael Niedermayer
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_LFG_H
-#define AVUTIL_LFG_H
-
-typedef struct {
- unsigned int state[64];
- int index;
-} AVLFG;
-
-void av_lfg_init(AVLFG *c, unsigned int seed);
-
-/**
- * Get the next random unsigned 32-bit number using an ALFG.
- *
- * Please also consider a simple LCG like state= state*1664525+1013904223,
- * it may be good enough and faster for your specific use case.
- */
-static inline unsigned int av_lfg_get(AVLFG *c){
- c->state[c->index & 63] = c->state[(c->index-24) & 63] + c->state[(c->index-55) & 63];
- return c->state[c->index++ & 63];
-}
-
-/**
- * Get the next random unsigned 32-bit number using a MLFG.
- *
- * Please also consider av_lfg_get() above, it is faster.
- */
-static inline unsigned int av_mlfg_get(AVLFG *c){
- unsigned int a= c->state[(c->index-55) & 63];
- unsigned int b= c->state[(c->index-24) & 63];
- return c->state[c->index++ & 63] = 2*a*b+a+b;
-}
-
-/**
- * Get the next two numbers generated by a Box-Muller Gaussian
- * generator using the random numbers issued by lfg.
- *
- * @param out array where the two generated numbers are placed
- */
-void av_bmg_get(AVLFG *lfg, double out[2]);
-
-#endif /* AVUTIL_LFG_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_LOG_H
-#define AVUTIL_LOG_H
-
-#include <stdarg.h>
-#include "avutil.h"
-
-/**
- * Describe the class of an AVClass context structure. That is an
- * arbitrary struct of which the first field is a pointer to an
- * AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).
- */
-typedef struct {
- /**
- * The name of the class; usually it is the same name as the
- * context structure type to which the AVClass is associated.
- */
- const char* class_name;
-
- /**
- * A pointer to a function which returns the name of a context
- * instance ctx associated with the class.
- */
- const char* (*item_name)(void* ctx);
-
- /**
- * a pointer to the first option specified in the class if any or NULL
- *
- * @see av_set_default_options()
- */
- const struct AVOption *option;
-
- /**
- * LIBAVUTIL_VERSION with which this structure was created.
- * This is used to allow fields to be added without requiring major
- * version bumps everywhere.
- */
-
- int version;
-
- /**
- * Offset in the structure where log_level_offset is stored.
- * 0 means there is no such variable
- */
- int log_level_offset_offset;
-
- /**
- * Offset in the structure where a pointer to the parent context for loging is stored.
- * for example a decoder that uses eval.c could pass its AVCodecContext to eval as such
- * parent context. And a av_log() implementation could then display the parent context
- * can be NULL of course
- */
- int parent_log_context_offset;
-
- /**
- * A function for extended searching, e.g. in possible
- * children objects.
- */
- const struct AVOption* (*opt_find)(void *obj, const char *name, const char *unit,
- int opt_flags, int search_flags);
-} AVClass;
-
-/* av_log API */
-
-#define AV_LOG_QUIET -8
-
-/**
- * Something went really wrong and we will crash now.
- */
-#define AV_LOG_PANIC 0
-
-/**
- * Something went wrong and recovery is not possible.
- * For example, no header was found for a format which depends
- * on headers or an illegal combination of parameters is used.
- */
-#define AV_LOG_FATAL 8
-
-/**
- * Something went wrong and cannot losslessly be recovered.
- * However, not all future data is affected.
- */
-#define AV_LOG_ERROR 16
-
-/**
- * Something somehow does not look correct. This may or may not
- * lead to problems. An example would be the use of '-vstrict -2'.
- */
-#define AV_LOG_WARNING 24
-
-#define AV_LOG_INFO 32
-#define AV_LOG_VERBOSE 40
-
-/**
- * Stuff which is only useful for libav* developers.
- */
-#define AV_LOG_DEBUG 48
-
-/**
- * Send the specified message to the log if the level is less than or equal
- * to the current av_log_level. By default, all logging messages are sent to
- * stderr. This behavior can be altered by setting a different av_vlog callback
- * function.
- *
- * @param avcl A pointer to an arbitrary struct of which the first field is a
- * pointer to an AVClass struct.
- * @param level The importance level of the message, lower values signifying
- * higher importance.
- * @param fmt The format string (printf-compatible) that specifies how
- * subsequent arguments are converted to output.
- * @see av_vlog
- */
-#ifdef __GNUC__
-void av_log(void *avcl, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
-#else
-void av_log(void *avcl, int level, const char *fmt, ...);
-#endif
-
-void av_vlog(void *avcl, int level, const char *fmt, va_list);
-int av_log_get_level(void);
-void av_log_set_level(int);
-void av_log_set_callback(void (*)(void*, int, const char*, va_list));
-void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl);
-const char* av_default_item_name(void* ctx);
-
-/**
- * av_dlog macros
- * Useful to print debug messages that shouldn't get compiled in normally.
- */
-
-#ifdef DEBUG
-# define av_dlog(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
-#else
-# define av_dlog(pctx, ...)
-#endif
-
-/**
- * Skip repeated messages, this requires the user app to use av_log() instead of
- * (f)printf as the 2 would otherwise interfere and lead to
- * "Last message repeated x times" messages below (f)printf messages with some
- * bad luck.
- * Also to receive the last, "last repeated" line if any, the user app must
- * call av_log(NULL, AV_LOG_QUIET, ""); at the end
- */
-#define AV_LOG_SKIP_REPEATED 1
-void av_log_set_flags(int arg);
-
-#endif /* AVUTIL_LOG_H */
+++ /dev/null
-/*
- * LZO 1x decompression
- * copyright (c) 2006 Reimar Doeffinger
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_LZO_H
-#define AVUTIL_LZO_H
-
-#include <stdint.h>
-
-/** @name Error flags returned by av_lzo1x_decode
- * \{ */
-//! end of the input buffer reached before decoding finished
-#define AV_LZO_INPUT_DEPLETED 1
-//! decoded data did not fit into output buffer
-#define AV_LZO_OUTPUT_FULL 2
-//! a reference to previously decoded data was wrong
-#define AV_LZO_INVALID_BACKPTR 4
-//! a non-specific error in the compressed bitstream
-#define AV_LZO_ERROR 8
-/** \} */
-
-#define AV_LZO_INPUT_PADDING 8
-#define AV_LZO_OUTPUT_PADDING 12
-
-/**
- * \brief Decodes LZO 1x compressed data.
- * \param out output buffer
- * \param outlen size of output buffer, number of bytes left are returned here
- * \param in input buffer
- * \param inlen size of input buffer, number of bytes left are returned here
- * \return 0 on success, otherwise a combination of the error flags above
- *
- * Make sure all buffers are appropriately padded, in must provide
- * AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes.
- */
-int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen);
-
-/**
- * \brief deliberately overlapping memcpy implementation
- * \param dst destination buffer; must be padded with 12 additional bytes
- * \param back how many bytes back we start (the initial size of the overlapping window)
- * \param cnt number of bytes to copy, must be >= 0
- *
- * cnt > back is valid, this will copy the bytes we just copied,
- * thus creating a repeating pattern with a period length of back.
- */
-void av_memcpy_backptr(uint8_t *dst, int back, int cnt);
-
-#endif /* AVUTIL_LZO_H */
+++ /dev/null
-/*
- * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_MATHEMATICS_H
-#define AVUTIL_MATHEMATICS_H
-
-#include <stdint.h>
-#include <math.h>
-#include "attributes.h"
-#include "rational.h"
-
-#ifndef M_E
-#define M_E 2.7182818284590452354 /* e */
-#endif
-#ifndef M_LN2
-#define M_LN2 0.69314718055994530942 /* log_e 2 */
-#endif
-#ifndef M_LN10
-#define M_LN10 2.30258509299404568402 /* log_e 10 */
-#endif
-#ifndef M_LOG2_10
-#define M_LOG2_10 3.32192809488736234787 /* log_2 10 */
-#endif
-#ifndef M_PHI
-#define M_PHI 1.61803398874989484820 /* phi / golden ratio */
-#endif
-#ifndef M_PI
-#define M_PI 3.14159265358979323846 /* pi */
-#endif
-#ifndef M_SQRT1_2
-#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
-#endif
-#ifndef M_SQRT2
-#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
-#endif
-#ifndef NAN
-#define NAN (0.0/0.0)
-#endif
-#ifndef INFINITY
-#define INFINITY (1.0/0.0)
-#endif
-
-enum AVRounding {
- AV_ROUND_ZERO = 0, ///< Round toward zero.
- AV_ROUND_INF = 1, ///< Round away from zero.
- AV_ROUND_DOWN = 2, ///< Round toward -infinity.
- AV_ROUND_UP = 3, ///< Round toward +infinity.
- AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero.
-};
-
-/**
- * Return the greatest common divisor of a and b.
- * If both a and b are 0 or either or both are <0 then behavior is
- * undefined.
- */
-int64_t av_const av_gcd(int64_t a, int64_t b);
-
-/**
- * Rescale a 64-bit integer with rounding to nearest.
- * A simple a*b/c isn't possible as it can overflow.
- */
-int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
-
-/**
- * Rescale a 64-bit integer with specified rounding.
- * A simple a*b/c isn't possible as it can overflow.
- */
-int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const;
-
-/**
- * Rescale a 64-bit integer by 2 rational numbers.
- */
-int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
-
-/**
- * Compare 2 timestamps each in its own timebases.
- * The result of the function is undefined if one of the timestamps
- * is outside the int64_t range when represented in the others timebase.
- * @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position
- */
-int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b);
-
-/**
- * Compare 2 integers modulo mod.
- * That is we compare integers a and b for which only the least
- * significant log2(mod) bits are known.
- *
- * @param mod must be a power of 2
- * @return a negative value if a is smaller than b
- * a positive value if a is greater than b
- * 0 if a equals b
- */
-int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod);
-
-#endif /* AVUTIL_MATHEMATICS_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_MD5_H
-#define AVUTIL_MD5_H
-
-#include <stdint.h>
-
-extern const int av_md5_size;
-
-struct AVMD5;
-
-void av_md5_init(struct AVMD5 *ctx);
-void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, const int len);
-void av_md5_final(struct AVMD5 *ctx, uint8_t *dst);
-void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len);
-
-#endif /* AVUTIL_MD5_H */
-
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * memory handling functions
- */
-
-#ifndef AVUTIL_MEM_H
-#define AVUTIL_MEM_H
-
-#include "attributes.h"
-#include "avutil.h"
-
-#if defined(__ICC) && _ICC < 1200 || defined(__SUNPRO_C)
- #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
- #define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v
-#elif defined(__TI_COMPILER_VERSION__)
- #define DECLARE_ALIGNED(n,t,v) \
- AV_PRAGMA(DATA_ALIGN(v,n)) \
- t __attribute__((aligned(n))) v
- #define DECLARE_ASM_CONST(n,t,v) \
- AV_PRAGMA(DATA_ALIGN(v,n)) \
- static const t __attribute__((aligned(n))) v
-#elif defined(__GNUC__)
- #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
- #define DECLARE_ASM_CONST(n,t,v) static const t av_used __attribute__ ((aligned (n))) v
-#elif defined(_MSC_VER)
- #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
- #define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v
-#else
- #define DECLARE_ALIGNED(n,t,v) t v
- #define DECLARE_ASM_CONST(n,t,v) static const t v
-#endif
-
-#if AV_GCC_VERSION_AT_LEAST(3,1)
- #define av_malloc_attrib __attribute__((__malloc__))
-#else
- #define av_malloc_attrib
-#endif
-
-#if AV_GCC_VERSION_AT_LEAST(4,3)
- #define av_alloc_size(n) __attribute__((alloc_size(n)))
-#else
- #define av_alloc_size(n)
-#endif
-
-/**
- * Allocate a block of size bytes with alignment suitable for all
- * memory accesses (including vectors if available on the CPU).
- * @param size Size in bytes for the memory block to be allocated.
- * @return Pointer to the allocated block, NULL if the block cannot
- * be allocated.
- * @see av_mallocz()
- */
-void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1);
-
-/**
- * Allocate or reallocate a block of memory.
- * If ptr is NULL and size > 0, allocate a new block. If
- * size is zero, free the memory block pointed to by ptr.
- * @param size Size in bytes for the memory block to be allocated or
- * reallocated.
- * @param ptr Pointer to a memory block already allocated with
- * av_malloc(z)() or av_realloc() or NULL.
- * @return Pointer to a newly reallocated block or NULL if the block
- * cannot be reallocated or the function is used to free the memory block.
- * @see av_fast_realloc()
- */
-void *av_realloc(void *ptr, size_t size) av_alloc_size(2);
-
-/**
- * Free a memory block which has been allocated with av_malloc(z)() or
- * av_realloc().
- * @param ptr Pointer to the memory block which should be freed.
- * @note ptr = NULL is explicitly allowed.
- * @note It is recommended that you use av_freep() instead.
- * @see av_freep()
- */
-void av_free(void *ptr);
-
-/**
- * Allocate a block of size bytes with alignment suitable for all
- * memory accesses (including vectors if available on the CPU) and
- * zero all the bytes of the block.
- * @param size Size in bytes for the memory block to be allocated.
- * @return Pointer to the allocated block, NULL if it cannot be allocated.
- * @see av_malloc()
- */
-void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1);
-
-/**
- * Duplicate the string s.
- * @param s string to be duplicated
- * @return Pointer to a newly allocated string containing a
- * copy of s or NULL if the string cannot be allocated.
- */
-char *av_strdup(const char *s) av_malloc_attrib;
-
-/**
- * Free a memory block which has been allocated with av_malloc(z)() or
- * av_realloc() and set the pointer pointing to it to NULL.
- * @param ptr Pointer to the pointer to the memory block which should
- * be freed.
- * @see av_free()
- */
-void av_freep(void *ptr);
-
-#endif /* AVUTIL_MEM_H */
+++ /dev/null
-/*
- * AVOptions
- * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_OPT_H
-#define AVUTIL_OPT_H
-
-/**
- * @file
- * AVOptions
- */
-
-#include "rational.h"
-#include "avutil.h"
-#include "dict.h"
-
-enum AVOptionType{
- FF_OPT_TYPE_FLAGS,
- FF_OPT_TYPE_INT,
- FF_OPT_TYPE_INT64,
- FF_OPT_TYPE_DOUBLE,
- FF_OPT_TYPE_FLOAT,
- FF_OPT_TYPE_STRING,
- FF_OPT_TYPE_RATIONAL,
- FF_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length
- FF_OPT_TYPE_CONST=128,
-};
-
-/**
- * AVOption
- */
-typedef struct AVOption {
- const char *name;
-
- /**
- * short English help text
- * @todo What about other languages?
- */
- const char *help;
-
- /**
- * The offset relative to the context structure where the option
- * value is stored. It should be 0 for named constants.
- */
- int offset;
- enum AVOptionType type;
-
- /**
- * the default value for scalar options
- */
- union {
- double dbl;
- const char *str;
- /* TODO those are unused now */
- int64_t i64;
- AVRational q;
- } default_val;
- double min; ///< minimum valid value for the option
- double max; ///< maximum valid value for the option
-
- int flags;
-#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding
-#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding
-#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ...
-#define AV_OPT_FLAG_AUDIO_PARAM 8
-#define AV_OPT_FLAG_VIDEO_PARAM 16
-#define AV_OPT_FLAG_SUBTITLE_PARAM 32
-//FIXME think about enc-audio, ... style flags
-
- /**
- * The logical unit to which the option belongs. Non-constant
- * options and corresponding named constants share the same
- * unit. May be NULL.
- */
- const char *unit;
-} AVOption;
-
-#if FF_API_FIND_OPT
-/**
- * Look for an option in obj. Look only for the options which
- * have the flags set as specified in mask and flags (that is,
- * for which it is the case that opt->flags & mask == flags).
- *
- * @param[in] obj a pointer to a struct whose first element is a
- * pointer to an AVClass
- * @param[in] name the name of the option to look for
- * @param[in] unit the unit of the option to look for, or any if NULL
- * @return a pointer to the option found, or NULL if no option
- * has been found
- *
- * @deprecated use av_opt_find.
- */
-attribute_deprecated
-const AVOption *av_find_opt(void *obj, const char *name, const char *unit, int mask, int flags);
-#endif
-
-/**
- * Set the field of obj with the given name to value.
- *
- * @param[in] obj A struct whose first element is a pointer to an
- * AVClass.
- * @param[in] name the name of the field to set
- * @param[in] val The value to set. If the field is not of a string
- * type, then the given string is parsed.
- * SI postfixes and some named scalars are supported.
- * If the field is of a numeric type, it has to be a numeric or named
- * scalar. Behavior with more than one scalar and +- infix operators
- * is undefined.
- * If the field is of a flags type, it has to be a sequence of numeric
- * scalars or named flags separated by '+' or '-'. Prefixing a flag
- * with '+' causes it to be set without affecting the other flags;
- * similarly, '-' unsets a flag.
- * @param[out] o_out if non-NULL put here a pointer to the AVOption
- * found
- * @param alloc when 1 then the old value will be av_freed() and the
- * new av_strduped()
- * when 0 then no av_free() nor av_strdup() will be used
- * @return 0 if the value has been set, or an AVERROR code in case of
- * error:
- * AVERROR(ENOENT) if no matching option exists
- * AVERROR(ERANGE) if the value is out of range
- * AVERROR(EINVAL) if the value is not valid
- */
-int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out);
-
-const AVOption *av_set_double(void *obj, const char *name, double n);
-const AVOption *av_set_q(void *obj, const char *name, AVRational n);
-const AVOption *av_set_int(void *obj, const char *name, int64_t n);
-double av_get_double(void *obj, const char *name, const AVOption **o_out);
-AVRational av_get_q(void *obj, const char *name, const AVOption **o_out);
-int64_t av_get_int(void *obj, const char *name, const AVOption **o_out);
-const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len);
-const AVOption *av_next_option(void *obj, const AVOption *last);
-
-/**
- * Show the obj options.
- *
- * @param req_flags requested flags for the options to show. Show only the
- * options for which it is opt->flags & req_flags.
- * @param rej_flags rejected flags for the options to show. Show only the
- * options for which it is !(opt->flags & req_flags).
- * @param av_log_obj log context to use for showing the options
- */
-int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags);
-
-void av_opt_set_defaults(void *s);
-void av_opt_set_defaults2(void *s, int mask, int flags);
-
-/**
- * Parse the key/value pairs list in opts. For each key/value pair
- * found, stores the value in the field in ctx that is named like the
- * key. ctx must be an AVClass context, storing is done using
- * AVOptions.
- *
- * @param key_val_sep a 0-terminated list of characters used to
- * separate key from value
- * @param pairs_sep a 0-terminated list of characters used to separate
- * two pairs from each other
- * @return the number of successfully set key/value pairs, or a negative
- * value corresponding to an AVERROR code in case of error:
- * AVERROR(EINVAL) if opts cannot be parsed,
- * the error code issued by av_set_string3() if a key/value pair
- * cannot be set
- */
-int av_set_options_string(void *ctx, const char *opts,
- const char *key_val_sep, const char *pairs_sep);
-
-/**
- * Free all string and binary options in obj.
- */
-void av_opt_free(void *obj);
-
-/**
- * Check whether a particular flag is set in a flags field.
- *
- * @param field_name the name of the flag field option
- * @param flag_name the name of the flag to check
- * @return non-zero if the flag is set, zero if the flag isn't set,
- * isn't of the right type, or the flags field doesn't exist.
- */
-int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name);
-
-/*
- * Set all the options from a given dictionary on an object.
- *
- * @param obj a struct whose first element is a pointer to AVClass
- * @param options options to process. This dictionary will be freed and replaced
- * by a new one containing all options not found in obj.
- * Of course this new dictionary needs to be freed by caller
- * with av_dict_free().
- *
- * @return 0 on success, a negative AVERROR if some option was found in obj,
- * but could not be set.
- *
- * @see av_dict_copy()
- */
-int av_opt_set_dict(void *obj, struct AVDictionary **options);
-
-#define AV_OPT_SEARCH_CHILDREN 0x0001 /**< Search in possible children of the
- given object first. */
-
-/**
- * Look for an option in an object. Consider only options which
- * have all the specified flags set.
- *
- * @param[in] obj A pointer to a struct whose first element is a
- * pointer to an AVClass.
- * @param[in] name The name of the option to look for.
- * @param[in] unit When searching for named constants, name of the unit
- * it belongs to.
- * @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG).
- * @param search_flags A combination of AV_OPT_SEARCH_*.
- *
- * @return A pointer to the option found, or NULL if no option
- * was found.
- *
- * @note Options found with AV_OPT_SEARCH_CHILDREN flag may not be settable
- * directly with av_set_string3(). Use special calls which take an options
- * AVDictionary (e.g. avformat_open_input()) to set options found with this
- * flag.
- */
-const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
- int opt_flags, int search_flags);
-
-#endif /* AVUTIL_OPT_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_PARSEUTILS_H
-#define AVUTIL_PARSEUTILS_H
-
-#include "rational.h"
-
-/**
- * @file
- * misc parsing utilities
- */
-
-/**
- * Parse str and put in width_ptr and height_ptr the detected values.
- *
- * @param[in,out] width_ptr pointer to the variable which will contain the detected
- * width value
- * @param[in,out] height_ptr pointer to the variable which will contain the detected
- * height value
- * @param[in] str the string to parse: it has to be a string in the format
- * width x height or a valid video size abbreviation.
- * @return >= 0 on success, a negative error code otherwise
- */
-int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str);
-
-/**
- * Parse str and store the detected values in *rate.
- *
- * @param[in,out] rate pointer to the AVRational which will contain the detected
- * frame rate
- * @param[in] str the string to parse: it has to be a string in the format
- * rate_num / rate_den, a float number or a valid video rate abbreviation
- * @return >= 0 on success, a negative error code otherwise
- */
-int av_parse_video_rate(AVRational *rate, const char *str);
-
-/**
- * Put the RGBA values that correspond to color_string in rgba_color.
- *
- * @param color_string a string specifying a color. It can be the name of
- * a color (case insensitive match) or a [0x|#]RRGGBB[AA] sequence,
- * possibly followed by "@" and a string representing the alpha
- * component.
- * The alpha component may be a string composed by "0x" followed by an
- * hexadecimal number or a decimal number between 0.0 and 1.0, which
- * represents the opacity value (0x00/0.0 means completely transparent,
- * 0xff/1.0 completely opaque).
- * If the alpha component is not specified then 0xff is assumed.
- * The string "random" will result in a random color.
- * @param slen length of the initial part of color_string containing the
- * color. It can be set to -1 if color_string is a null terminated string
- * containing nothing else than the color.
- * @return >= 0 in case of success, a negative value in case of
- * failure (for example if color_string cannot be parsed).
- */
-int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
- void *log_ctx);
-
-/**
- * Parses timestr and returns in *time a corresponding number of
- * microseconds.
- *
- * @param timeval puts here the number of microseconds corresponding
- * to the string in timestr. If the string represents a duration, it
- * is the number of microseconds contained in the time interval. If
- * the string is a date, is the number of microseconds since 1st of
- * January, 1970 up to the time of the parsed date. If timestr cannot
- * be successfully parsed, set *time to INT64_MIN.
-
- * @param datestr a string representing a date or a duration.
- * - If a date the syntax is:
- * @code
- * [{YYYY-MM-DD|YYYYMMDD}[T|t| ]]{{HH[:MM[:SS[.m...]]]}|{HH[MM[SS[.m...]]]}}[Z]
- * now
- * @endcode
- * If the value is "now" it takes the current time.
- * Time is local time unless Z is appended, in which case it is
- * interpreted as UTC.
- * If the year-month-day part is not specified it takes the current
- * year-month-day.
- * - If a duration the syntax is:
- * @code
- * [-]HH[:MM[:SS[.m...]]]
- * [-]S+[.m...]
- * @endcode
- * @param duration flag which tells how to interpret timestr, if not
- * zero timestr is interpreted as a duration, otherwise as a date
- * @return 0 in case of success, a negative value corresponding to an
- * AVERROR code otherwise
- */
-int av_parse_time(int64_t *timeval, const char *timestr, int duration);
-
-/**
- * Attempt to find a specific tag in a URL.
- *
- * syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done.
- * Return 1 if found.
- */
-int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
-
-#endif /* AVUTIL_PARSEUTILS_H */
+++ /dev/null
-/*
- * pixel format descriptor
- * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_PIXDESC_H
-#define AVUTIL_PIXDESC_H
-
-#include <inttypes.h>
-#include "pixfmt.h"
-
-typedef struct AVComponentDescriptor{
- uint16_t plane :2; ///< which of the 4 planes contains the component
-
- /**
- * Number of elements between 2 horizontally consecutive pixels minus 1.
- * Elements are bits for bitstream formats, bytes otherwise.
- */
- uint16_t step_minus1 :3;
-
- /**
- * Number of elements before the component of the first pixel plus 1.
- * Elements are bits for bitstream formats, bytes otherwise.
- */
- uint16_t offset_plus1 :3;
- uint16_t shift :3; ///< number of least significant bits that must be shifted away to get the value
- uint16_t depth_minus1 :4; ///< number of bits in the component minus 1
-}AVComponentDescriptor;
-
-/**
- * Descriptor that unambiguously describes how the bits of a pixel are
- * stored in the up to 4 data planes of an image. It also stores the
- * subsampling factors and number of components.
- *
- * @note This is separate of the colorspace (RGB, YCbCr, YPbPr, JPEG-style YUV
- * and all the YUV variants) AVPixFmtDescriptor just stores how values
- * are stored not what these values represent.
- */
-typedef struct AVPixFmtDescriptor{
- const char *name;
- uint8_t nb_components; ///< The number of components each pixel has, (1-4)
-
- /**
- * Amount to shift the luma width right to find the chroma width.
- * For YV12 this is 1 for example.
- * chroma_width = -((-luma_width) >> log2_chroma_w)
- * The note above is needed to ensure rounding up.
- * This value only refers to the chroma components.
- */
- uint8_t log2_chroma_w; ///< chroma_width = -((-luma_width )>>log2_chroma_w)
-
- /**
- * Amount to shift the luma height right to find the chroma height.
- * For YV12 this is 1 for example.
- * chroma_height= -((-luma_height) >> log2_chroma_h)
- * The note above is needed to ensure rounding up.
- * This value only refers to the chroma components.
- */
- uint8_t log2_chroma_h;
- uint8_t flags;
-
- /**
- * Parameters that describe how pixels are packed. If the format
- * has chroma components, they must be stored in comp[1] and
- * comp[2].
- */
- AVComponentDescriptor comp[4];
-}AVPixFmtDescriptor;
-
-#define PIX_FMT_BE 1 ///< Pixel format is big-endian.
-#define PIX_FMT_PAL 2 ///< Pixel format has a palette in data[1], values are indexes in this palette.
-#define PIX_FMT_BITSTREAM 4 ///< All values of a component are bit-wise packed end to end.
-#define PIX_FMT_HWACCEL 8 ///< Pixel format is an HW accelerated format.
-
-/**
- * The array of all the pixel format descriptors.
- */
-extern const AVPixFmtDescriptor av_pix_fmt_descriptors[];
-
-/**
- * Read a line from an image, and write the values of the
- * pixel format component c to dst.
- *
- * @param data the array containing the pointers to the planes of the image
- * @param linesize the array containing the linesizes of the image
- * @param desc the pixel format descriptor for the image
- * @param x the horizontal coordinate of the first pixel to read
- * @param y the vertical coordinate of the first pixel to read
- * @param w the width of the line to read, that is the number of
- * values to write to dst
- * @param read_pal_component if not zero and the format is a paletted
- * format writes the values corresponding to the palette
- * component c in data[1] to dst, rather than the palette indexes in
- * data[0]. The behavior is undefined if the format is not paletted.
- */
-void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
- const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component);
-
-/**
- * Write the values from src to the pixel format component c of an
- * image line.
- *
- * @param src array containing the values to write
- * @param data the array containing the pointers to the planes of the
- * image to write into. It is supposed to be zeroed.
- * @param linesize the array containing the linesizes of the image
- * @param desc the pixel format descriptor for the image
- * @param x the horizontal coordinate of the first pixel to write
- * @param y the vertical coordinate of the first pixel to write
- * @param w the width of the line to write, that is the number of
- * values to write to the image line
- */
-void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
- const AVPixFmtDescriptor *desc, int x, int y, int c, int w);
-
-/**
- * Return the pixel format corresponding to name.
- *
- * If there is no pixel format with name name, then looks for a
- * pixel format with the name corresponding to the native endian
- * format of name.
- * For example in a little-endian system, first looks for "gray16",
- * then for "gray16le".
- *
- * Finally if no pixel format has been found, returns PIX_FMT_NONE.
- */
-enum PixelFormat av_get_pix_fmt(const char *name);
-
-/**
- * Return the short name for a pixel format, NULL in case pix_fmt is
- * unknown.
- *
- * @see av_get_pix_fmt(), av_get_pix_fmt_string()
- */
-const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt);
-
-/**
- * Print in buf the string corresponding to the pixel format with
- * number pix_fmt, or an header if pix_fmt is negative.
- *
- * @param buf the buffer where to write the string
- * @param buf_size the size of buf
- * @param pix_fmt the number of the pixel format to print the
- * corresponding info string, or a negative value to print the
- * corresponding header.
- */
-char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt);
-
-/**
- * Return the number of bits per pixel used by the pixel format
- * described by pixdesc.
- *
- * The returned number of bits refers to the number of bits actually
- * used for storing the pixel information, that is padding bits are
- * not counted.
- */
-int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc);
-
-#endif /* AVUTIL_PIXDESC_H */
+++ /dev/null
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_PIXFMT_H
-#define AVUTIL_PIXFMT_H
-
-/**
- * @file
- * pixel format definitions
- *
- * @warning This file has to be considered an internal but installed
- * header, so it should not be directly included in your projects.
- */
-
-#include "libavutil/avconfig.h"
-
-/**
- * Pixel format. Notes:
- *
- * PIX_FMT_RGB32 is handled in an endian-specific manner. An RGBA
- * color is put together as:
- * (A << 24) | (R << 16) | (G << 8) | B
- * This is stored as BGRA on little-endian CPU architectures and ARGB on
- * big-endian CPUs.
- *
- * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
- * image data is stored in AVFrame.data[0]. The palette is transported in
- * AVFrame.data[1], is 1024 bytes long (256 4-byte entries) and is
- * formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
- * also endian-specific). Note also that the individual RGB palette
- * components stored in AVFrame.data[1] should be in the range 0..255.
- * This is important as many custom PAL8 video codecs that were designed
- * to run on the IBM VGA graphics adapter use 6-bit palette components.
- *
- * For all the 8bit per pixel formats, an RGB32 palette is in data[1] like
- * for pal8. This palette is filled in automatically by the function
- * allocating the picture.
- *
- * Note, make sure that all newly added big endian formats have pix_fmt&1==1
- * and that all newly added little endian formats have pix_fmt&1==0
- * this allows simpler detection of big vs little endian.
- */
-
-#define PixelFormat FFmpeg_PixelFormat
-
-enum PixelFormat {
- PIX_FMT_NONE= -1,
- PIX_FMT_YUV420P, ///< planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
- PIX_FMT_YUYV422, ///< packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
- PIX_FMT_RGB24, ///< packed RGB 8:8:8, 24bpp, RGBRGB...
- PIX_FMT_BGR24, ///< packed RGB 8:8:8, 24bpp, BGRBGR...
- PIX_FMT_YUV422P, ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
- PIX_FMT_YUV444P, ///< planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
- PIX_FMT_YUV410P, ///< planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
- PIX_FMT_YUV411P, ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
- PIX_FMT_GRAY8, ///< Y , 8bpp
- PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb
- PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb
- PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
- PIX_FMT_YUVJ420P, ///< planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_range
- PIX_FMT_YUVJ422P, ///< planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_range
- PIX_FMT_YUVJ444P, ///< planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_range
- PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing
- PIX_FMT_XVMC_MPEG2_IDCT,
- PIX_FMT_UYVY422, ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
- PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
- PIX_FMT_BGR8, ///< packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
- PIX_FMT_BGR4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
- PIX_FMT_BGR4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
- PIX_FMT_RGB8, ///< packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
- PIX_FMT_RGB4, ///< packed RGB 1:2:1 bitstream, 4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
- PIX_FMT_RGB4_BYTE, ///< packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
- PIX_FMT_NV12, ///< planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (first byte U and the following byte V)
- PIX_FMT_NV21, ///< as above, but U and V bytes are swapped
-
- PIX_FMT_ARGB, ///< packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
- PIX_FMT_RGBA, ///< packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
- PIX_FMT_ABGR, ///< packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
- PIX_FMT_BGRA, ///< packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
-
- PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian
- PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian
- PIX_FMT_YUV440P, ///< planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
- PIX_FMT_YUVJ440P, ///< planar YUV 4:4:0 full scale (JPEG), deprecated in favor of PIX_FMT_YUV440P and setting color_range
- PIX_FMT_YUVA420P, ///< planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
- PIX_FMT_VDPAU_H264,///< H.264 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
- PIX_FMT_VDPAU_MPEG1,///< MPEG-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
- PIX_FMT_VDPAU_MPEG2,///< MPEG-2 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
- PIX_FMT_VDPAU_WMV3,///< WMV3 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
- PIX_FMT_VDPAU_VC1, ///< VC-1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
- PIX_FMT_RGB48BE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big-endian
- PIX_FMT_RGB48LE, ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as little-endian
-
- PIX_FMT_RGB565BE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
- PIX_FMT_RGB565LE, ///< packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
- PIX_FMT_RGB555BE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), big-endian, most significant bit to 0
- PIX_FMT_RGB555LE, ///< packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), little-endian, most significant bit to 0
-
- PIX_FMT_BGR565BE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
- PIX_FMT_BGR565LE, ///< packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
- PIX_FMT_BGR555BE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), big-endian, most significant bit to 1
- PIX_FMT_BGR555LE, ///< packed BGR 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), little-endian, most significant bit to 1
-
- PIX_FMT_VAAPI_MOCO, ///< HW acceleration through VA API at motion compensation entry-point, Picture.data[3] contains a vaapi_render_state struct which contains macroblocks as well as various fields extracted from headers
- PIX_FMT_VAAPI_IDCT, ///< HW acceleration through VA API at IDCT entry-point, Picture.data[3] contains a vaapi_render_state struct which contains fields extracted from headers
- PIX_FMT_VAAPI_VLD, ///< HW decoding through VA API, Picture.data[3] contains a vaapi_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
-
- PIX_FMT_YUV420P16LE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
- PIX_FMT_YUV420P16BE, ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
- PIX_FMT_YUV422P16LE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
- PIX_FMT_YUV422P16BE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
- PIX_FMT_YUV444P16LE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
- PIX_FMT_YUV444P16BE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
- PIX_FMT_VDPAU_MPEG4, ///< MPEG4 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
- PIX_FMT_DXVA2_VLD, ///< HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer
-
- PIX_FMT_RGB444LE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), little-endian, most significant bits to 0
- PIX_FMT_RGB444BE, ///< packed RGB 4:4:4, 16bpp, (msb)4A 4R 4G 4B(lsb), big-endian, most significant bits to 0
- PIX_FMT_BGR444LE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), little-endian, most significant bits to 1
- PIX_FMT_BGR444BE, ///< packed BGR 4:4:4, 16bpp, (msb)4A 4B 4G 4R(lsb), big-endian, most significant bits to 1
- PIX_FMT_Y400A, ///< 8bit gray, 8bit alpha
- PIX_FMT_BGR48BE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big-endian
- PIX_FMT_BGR48LE, ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as little-endian
- PIX_FMT_YUV420P9BE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
- PIX_FMT_YUV420P9LE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
- PIX_FMT_YUV420P10BE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
- PIX_FMT_YUV420P10LE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
- PIX_FMT_YUV422P10BE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
- PIX_FMT_YUV422P10LE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
- PIX_FMT_YUV444P9BE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
- PIX_FMT_YUV444P9LE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
- PIX_FMT_YUV444P10BE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
- PIX_FMT_YUV444P10LE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
- PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
-};
-
-#if AV_HAVE_BIGENDIAN
-# define PIX_FMT_NE(be, le) PIX_FMT_##be
-#else
-# define PIX_FMT_NE(be, le) PIX_FMT_##le
-#endif
-
-#define PIX_FMT_RGB32 PIX_FMT_NE(ARGB, BGRA)
-#define PIX_FMT_RGB32_1 PIX_FMT_NE(RGBA, ABGR)
-#define PIX_FMT_BGR32 PIX_FMT_NE(ABGR, RGBA)
-#define PIX_FMT_BGR32_1 PIX_FMT_NE(BGRA, ARGB)
-
-#define PIX_FMT_GRAY16 PIX_FMT_NE(GRAY16BE, GRAY16LE)
-#define PIX_FMT_RGB48 PIX_FMT_NE(RGB48BE, RGB48LE)
-#define PIX_FMT_RGB565 PIX_FMT_NE(RGB565BE, RGB565LE)
-#define PIX_FMT_RGB555 PIX_FMT_NE(RGB555BE, RGB555LE)
-#define PIX_FMT_RGB444 PIX_FMT_NE(RGB444BE, RGB444LE)
-#define PIX_FMT_BGR48 PIX_FMT_NE(BGR48BE, BGR48LE)
-#define PIX_FMT_BGR565 PIX_FMT_NE(BGR565BE, BGR565LE)
-#define PIX_FMT_BGR555 PIX_FMT_NE(BGR555BE, BGR555LE)
-#define PIX_FMT_BGR444 PIX_FMT_NE(BGR444BE, BGR444LE)
-
-#define PIX_FMT_YUV420P9 PIX_FMT_NE(YUV420P9BE , YUV420P9LE)
-#define PIX_FMT_YUV444P9 PIX_FMT_NE(YUV444P9BE , YUV444P9LE)
-#define PIX_FMT_YUV420P10 PIX_FMT_NE(YUV420P10BE, YUV420P10LE)
-#define PIX_FMT_YUV422P10 PIX_FMT_NE(YUV422P10BE, YUV422P10LE)
-#define PIX_FMT_YUV444P10 PIX_FMT_NE(YUV444P10BE, YUV444P10LE)
-#define PIX_FMT_YUV420P16 PIX_FMT_NE(YUV420P16BE, YUV420P16LE)
-#define PIX_FMT_YUV422P16 PIX_FMT_NE(YUV422P16BE, YUV422P16LE)
-#define PIX_FMT_YUV444P16 PIX_FMT_NE(YUV444P16BE, YUV444P16LE)
-
-#endif /* AVUTIL_PIXFMT_H */
+++ /dev/null
-/*
- * Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_RANDOM_SEED_H
-#define AVUTIL_RANDOM_SEED_H
-
-#include <stdint.h>
-
-/**
- * Get a seed to use in conjunction with random functions.
- */
-uint32_t av_get_random_seed(void);
-
-#endif /* AVUTIL_RANDOM_SEED_H */
+++ /dev/null
-/*
- * rational numbers
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * rational numbers
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-#ifndef AVUTIL_RATIONAL_H
-#define AVUTIL_RATIONAL_H
-
-#include <stdint.h>
-#include <limits.h>
-#include "attributes.h"
-
-/**
- * rational number numerator/denominator
- */
-typedef struct AVRational{
- int num; ///< numerator
- int den; ///< denominator
-} AVRational;
-
-/**
- * Compare two rationals.
- * @param a first rational
- * @param b second rational
- * @return 0 if a==b, 1 if a>b, -1 if a<b, and INT_MIN if one of the
- * values is of the form 0/0
- */
-static inline int av_cmp_q(AVRational a, AVRational b){
- const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den;
-
- if(tmp) return ((tmp ^ a.den ^ b.den)>>63)|1;
- else if(b.den && a.den) return 0;
- else if(a.num && b.num) return (a.num>>31) - (b.num>>31);
- else return INT_MIN;
-}
-
-/**
- * Convert rational to double.
- * @param a rational to convert
- * @return (double) a
- */
-static inline double av_q2d(AVRational a){
- return a.num / (double) a.den;
-}
-
-/**
- * Reduce a fraction.
- * This is useful for framerate calculations.
- * @param dst_num destination numerator
- * @param dst_den destination denominator
- * @param num source numerator
- * @param den source denominator
- * @param max the maximum allowed for dst_num & dst_den
- * @return 1 if exact, 0 otherwise
- */
-int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max);
-
-/**
- * Multiply two rationals.
- * @param b first rational
- * @param c second rational
- * @return b*c
- */
-AVRational av_mul_q(AVRational b, AVRational c) av_const;
-
-/**
- * Divide one rational by another.
- * @param b first rational
- * @param c second rational
- * @return b/c
- */
-AVRational av_div_q(AVRational b, AVRational c) av_const;
-
-/**
- * Add two rationals.
- * @param b first rational
- * @param c second rational
- * @return b+c
- */
-AVRational av_add_q(AVRational b, AVRational c) av_const;
-
-/**
- * Subtract one rational from another.
- * @param b first rational
- * @param c second rational
- * @return b-c
- */
-AVRational av_sub_q(AVRational b, AVRational c) av_const;
-
-/**
- * Convert a double precision floating point number to a rational.
- * inf is expressed as {1,0} or {-1,0} depending on the sign.
- *
- * @param d double to convert
- * @param max the maximum allowed numerator and denominator
- * @return (AVRational) d
- */
-AVRational av_d2q(double d, int max) av_const;
-
-/**
- * @return 1 if q1 is nearer to q than q2, -1 if q2 is nearer
- * than q1, 0 if they have the same distance.
- */
-int av_nearer_q(AVRational q, AVRational q1, AVRational q2);
-
-/**
- * Find the nearest value in q_list to q.
- * @param q_list an array of rationals terminated by {0, 0}
- * @return the index of the nearest value found in the array
- */
-int av_find_nearest_q_idx(AVRational q, const AVRational* q_list);
-
-#endif /* AVUTIL_RATIONAL_H */
+++ /dev/null
-/*
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_SAMPLEFMT_H
-#define AVUTIL_SAMPLEFMT_H
-
-#include "avutil.h"
-
-/**
- * all in native-endian format
- */
-enum AVSampleFormat {
- AV_SAMPLE_FMT_NONE = -1,
- AV_SAMPLE_FMT_U8, ///< unsigned 8 bits
- AV_SAMPLE_FMT_S16, ///< signed 16 bits
- AV_SAMPLE_FMT_S32, ///< signed 32 bits
- AV_SAMPLE_FMT_FLT, ///< float
- AV_SAMPLE_FMT_DBL, ///< double
- AV_SAMPLE_FMT_NB ///< Number of sample formats. DO NOT USE if linking dynamically
-};
-
-/**
- * Return the name of sample_fmt, or NULL if sample_fmt is not
- * recognized.
- */
-const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
-
-/**
- * Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE
- * on error.
- */
-enum AVSampleFormat av_get_sample_fmt(const char *name);
-
-/**
- * Generate a string corresponding to the sample format with
- * sample_fmt, or a header if sample_fmt is negative.
- *
- * @param buf the buffer where to write the string
- * @param buf_size the size of buf
- * @param sample_fmt the number of the sample format to print the
- * corresponding info string, or a negative value to print the
- * corresponding header.
- * @return the pointer to the filled buffer or NULL if sample_fmt is
- * unknown or in case of other errors
- */
-char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
-
-#if FF_API_GET_BITS_PER_SAMPLE_FMT
-/**
- * @deprecated Use av_get_bytes_per_sample() instead.
- */
-attribute_deprecated
-int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt);
-#endif
-
-/**
- * Return number of bytes per sample.
- *
- * @param sample_fmt the sample format
- * @return number of bytes per sample or zero if unknown for the given
- * sample format
- */
-int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt);
-
-#endif /* AVUTIL_SAMPLEFMT_H */
+++ /dev/null
-/*
- * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_SHA_H
-#define AVUTIL_SHA_H
-
-#include <stdint.h>
-
-extern const int av_sha_size;
-
-struct AVSHA;
-
-/**
- * Initialize SHA-1 or SHA-2 hashing.
- *
- * @param context pointer to the function context (of size av_sha_size)
- * @param bits number of bits in digest (SHA-1 - 160 bits, SHA-2 224 or 256 bits)
- * @return zero if initialization succeeded, -1 otherwise
- */
-int av_sha_init(struct AVSHA* context, int bits);
-
-/**
- * Update hash value.
- *
- * @param context hash function context
- * @param data input data to update hash with
- * @param len input data length
- */
-void av_sha_update(struct AVSHA* context, const uint8_t* data, unsigned int len);
-
-/**
- * Finish hashing and output digest value.
- *
- * @param context hash function context
- * @param digest buffer where output digest value is stored
- */
-void av_sha_final(struct AVSHA* context, uint8_t *digest);
-
-#endif /* AVUTIL_SHA_H */
+++ /dev/null
-prefix=./
-exec_prefix=${prefix}
-libdir=${prefix}/lib
-includedir=${prefix}/include
-
-Name: libavcodec
-Description: Libav codec library
-Version: 53.5.0
-Requires: libavutil = 51.7.0
-Requires.private:
-Conflicts:
-Libs: -L${libdir} -lavcodec -lm -pthread -lbz2 -lz
-Libs.private:
-Cflags: -I${includedir}
+++ /dev/null
-prefix=./
-exec_prefix=${prefix}
-libdir=${prefix}/lib
-includedir=${prefix}/include
-
-Name: libavdevice
-Description: Libav device handling library
-Version: 53.0.0
-Requires: libavformat = 53.2.0
-Requires.private:
-Conflicts:
-Libs: -L${libdir} -lavdevice -lm -pthread -lbz2 -lz
-Libs.private:
-Cflags: -I${includedir}
+++ /dev/null
-prefix=./
-exec_prefix=${prefix}
-libdir=${prefix}/lib
-includedir=${prefix}/include
-
-Name: libavfilter
-Description: Libav video filtering library
-Version: 2.4.0
-Requires:
-Requires.private:
-Conflicts:
-Libs: -L${libdir} -lavfilter -lm -pthread -lbz2 -lz
-Libs.private:
-Cflags: -I${includedir}
+++ /dev/null
-prefix=./
-exec_prefix=${prefix}
-libdir=${prefix}/lib
-includedir=${prefix}/include
-
-Name: libavformat
-Description: Libav container format library
-Version: 53.2.0
-Requires: libavcodec = 53.5.0
-Requires.private:
-Conflicts:
-Libs: -L${libdir} -lavformat -lm -pthread -lbz2 -lz
-Libs.private:
-Cflags: -I${includedir}
+++ /dev/null
-prefix=./
-exec_prefix=${prefix}
-libdir=${prefix}/lib
-includedir=${prefix}/include
-
-Name: libavutil
-Description: Libav utility library
-Version: 51.7.0
-Requires:
-Requires.private:
-Conflicts:
-Libs: -L${libdir} -lavutil -lm
-Libs.private:
-Cflags: -I${includedir}
int pce_size = 0;
uint8_t pce_data[MAX_PCE_SIZE];
if (!hdr.chan_config) {
- init_get_bits(&gb, buf, buf_size);
+ init_get_bits(&gb, buf, buf_size * 8);
if (get_bits(&gb, 3) != 5) {
av_log_missing_feature(avctx, "PCE based channel configuration, where the PCE is not the first syntax element is", 0);
return -1;
} else {
memset(in, 0, 448 * sizeof(float));
ac->dsp.vector_fmul(in + 448, in + 448, swindow_prev, 128);
- memcpy(in + 576, in + 576, 448 * sizeof(float));
}
if (ics->window_sequence[0] != LONG_START_SEQUENCE) {
ac->dsp.vector_fmul_reverse(in + 1024, in + 1024, lwindow, 1024);
} else {
- memcpy(in + 1024, in + 1024, 448 * sizeof(float));
ac->dsp.vector_fmul_reverse(in + 1024 + 448, in + 1024 + 448, swindow, 128);
memset(in + 1024 + 576, 0, 448 * sizeof(float));
}
ChannelElement *che = NULL, *che_prev = NULL;
enum RawDataBlockType elem_type, elem_type_prev = TYPE_END;
int err, elem_id, data_size_tmp;
- int samples = 0, multiplier;
+ int samples = 0, multiplier, audio_found = 0;
if (show_bits(gb, 12) == 0xfff) {
if (parse_adts_frame_header(ac, gb) < 0) {
case TYPE_SCE:
err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+ audio_found = 1;
break;
case TYPE_CPE:
err = decode_cpe(ac, gb, che);
+ audio_found = 1;
break;
case TYPE_CCE:
case TYPE_LFE:
err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+ audio_found = 1;
break;
case TYPE_DSE:
samples, avctx->channels);
}
- if (ac->output_configured)
+ if (ac->output_configured && audio_found)
ac->output_configured = OC_LOCKED;
return 0;
const float (*H_LUT)[8][4] = (PS_BASELINE || ps->icc_mode < 3) ? HA : HB;
//Remapping
- memcpy(H11[0][0], H11[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[0][0][0]));
- memcpy(H11[1][0], H11[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[1][0][0]));
- memcpy(H12[0][0], H12[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[0][0][0]));
- memcpy(H12[1][0], H12[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[1][0][0]));
- memcpy(H21[0][0], H21[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[0][0][0]));
- memcpy(H21[1][0], H21[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[1][0][0]));
- memcpy(H22[0][0], H22[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[0][0][0]));
- memcpy(H22[1][0], H22[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[1][0][0]));
+ if (ps->num_env_old) {
+ memcpy(H11[0][0], H11[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[0][0][0]));
+ memcpy(H11[1][0], H11[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[1][0][0]));
+ memcpy(H12[0][0], H12[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[0][0][0]));
+ memcpy(H12[1][0], H12[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[1][0][0]));
+ memcpy(H21[0][0], H21[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[0][0][0]));
+ memcpy(H21[1][0], H21[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[1][0][0]));
+ memcpy(H22[0][0], H22[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[0][0][0]));
+ memcpy(H22[1][0], H22[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[1][0][0]));
+ }
+
if (is34) {
remap34(&iid_mapped, ps->iid_par, ps->nr_iid_par, ps->num_env, 1);
remap34(&icc_mapped, ps->icc_par, ps->nr_icc_par, ps->num_env, 1);
vhsub.s16 \r0, \d0, \d1 @ t3, t4, t8, t7
vhsub.s16 \r1, \d1, \d0
vhadd.s16 \d0, \d0, \d1 @ t1, t2, t6, t5
- vmov.i64 \d1, #0xffff<<32
+ vmov.i64 \d1, #0xffff00000000
vbit \r0, \r1, \d1
vrev64.16 \r1, \r0 @ t7, t8, t4, t3
vtrn.32 \r0, \r1 @ t3, t4, t7, t8
/**
* Bits per sample/pixel of internal libavcodec pixel/sample format.
- * This field is applicable only when sample_fmt is AV_SAMPLE_FMT_S32.
* - encoding: set by user.
* - decoding: set by libavcodec.
*/
table = buf + (256 * vect_w * vect_h);
if (sub_type != AVS_I_FRAME) {
int map_size = ((318 / vect_w + 7) / 8) * (198 / vect_h);
- init_get_bits(&change_map, table, map_size);
+ init_get_bits(&change_map, table, map_size * 8);
table += map_size;
}
r++;
mask = -(level_code & 1);
level = (level^mask) - mask;
- } else {
+ } else if (level_code >= 0) {
level = r->rltab[level_code][0];
if(!level) //end of block signal
break;
run = r->rltab[level_code][1];
r += r->rltab[level_code][2];
+ } else {
+ break;
}
level_buf[i] = level;
run_buf[i] = run;
static int decode_mb_i(AVSContext *h, int cbp_code) {
GetBitContext *gb = &h->s.gb;
- int block, pred_mode_uv;
+ unsigned pred_mode_uv;
+ int block;
uint8_t top[18];
uint8_t *left = NULL;
uint8_t *d;
if((show_bits_long(gb,24+align) & 0xFFFFFF) == 0x000001) {
skip_bits_long(gb,24+align);
h->stc = get_bits(gb,8);
+ if (h->stc >= h->mb_height)
+ return 0;
decode_slice_header(h,gb);
return 1;
}
buf_end = buf + buf_size;
for(;;) {
buf_ptr = ff_find_start_code(buf_ptr,buf_end, &stc);
- if(stc & 0xFFFFFE00)
+ if((stc & 0xFFFFFE00) || buf_ptr == buf_end)
return FFMAX(0, buf_ptr - buf - s->parse_context.last_index);
input_size = (buf_end - buf_ptr)*8;
switch(stc) {
cdg_decode_end,
cdg_decode_frame,
CODEC_CAP_DR1,
- .max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("CD Graphics video"),
};
p->pict_type= AV_PICTURE_TYPE_I;
p->key_frame= 1;
- init_get_bits(&a->gb, buf, buf_size);
+ init_get_bits(&a->gb, buf, buf_size * 8);
for(y=0; y<avctx->height; y++){
uint8_t *luma= &a->picture.data[0][ y*a->picture.linesize[0] ];
//set AVCodec values with parsed data
avctx->sample_rate = s->sample_rate;
avctx->bit_rate = s->bit_rate;
+ avctx->frame_size = s->sample_blocks * 32;
s->profile = FF_PROFILE_DTS;
bytes_read = c->bytestream - c->bytestream_start - 1;
if(bytes_read ==0) av_log(avctx, AV_LOG_ERROR, "error at end of AC stream\n"); //FIXME
//printf("pos=%d\n", bytes_read);
- init_get_bits(&f->slice_context[0]->gb, buf + bytes_read, buf_size - bytes_read);
+ init_get_bits(&f->slice_context[0]->gb, buf + bytes_read, (buf_size - bytes_read) * 8);
} else {
bytes_read = 0; /* avoid warning */
}
if(fs->ac){
ff_init_range_decoder(&fs->c, buf_p, v);
}else{
- init_get_bits(&fs->gb, buf_p, v);
+ init_get_bits(&fs->gb, buf_p, v * 8);
}
}
memcpy(&h->s + 1, &h1->s + 1, sizeof(H264Context) - sizeof(MpegEncContext)); //copy all fields after MpegEnc
memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
- ff_h264_alloc_tables(h);
+ if (ff_h264_alloc_tables(h) < 0) {
+ av_log(dst, AV_LOG_ERROR, "Could not allocate memory for h264\n");
+ return AVERROR(ENOMEM);
+ }
context_init(h);
for(i=0; i<2; i++){
tmp_y[j] = get_bits(&gb, bit_depth);
}
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- for (i = 0; i < 8; i++) {
- uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
- for (j = 0; j < 8; j++)
- tmp_cb[j] = get_bits(&gb, bit_depth);
- }
- for (i = 0; i < 8; i++) {
- uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
- for (j = 0; j < 8; j++)
- tmp_cr[j] = get_bits(&gb, bit_depth);
+ if (!h->sps.chroma_format_idc) {
+ for (i = 0; i < 8; i++) {
+ uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
+ for (j = 0; j < 8; j++) {
+ tmp_cb[j] = 1 << (bit_depth - 1);
+ }
+ }
+ for (i = 0; i < 8; i++) {
+ uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
+ for (j = 0; j < 8; j++) {
+ tmp_cr[j] = 1 << (bit_depth - 1);
+ }
+ }
+ } else {
+ for (i = 0; i < 8; i++) {
+ uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
+ for (j = 0; j < 8; j++)
+ tmp_cb[j] = get_bits(&gb, bit_depth);
+ }
+ for (i = 0; i < 8; i++) {
+ uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
+ for (j = 0; j < 8; j++)
+ tmp_cr[j] = get_bits(&gb, bit_depth);
+ }
}
}
} else {
memcpy(dest_y + i* linesize, h->mb + i*8, 16);
}
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- for (i=0; i<8; i++) {
- memcpy(dest_cb+ i*uvlinesize, h->mb + 128 + i*4, 8);
- memcpy(dest_cr+ i*uvlinesize, h->mb + 160 + i*4, 8);
+ if (!h->sps.chroma_format_idc) {
+ for (i = 0; i < 8; i++) {
+ memset(dest_cb + i*uvlinesize, 128, 8);
+ memset(dest_cr + i*uvlinesize, 128, 8);
+ }
+ } else {
+ for (i = 0; i < 8; i++) {
+ memcpy(dest_cb + i*uvlinesize, h->mb + 128 + i*4, 8);
+ memcpy(dest_cr + i*uvlinesize, h->mb + 160 + i*4, 8);
+ }
}
}
}
for(ref0=ref_start; ref0 < ref_count0; ref0++){
int poc0 = h->ref_list[0][ref0].poc;
for(ref1=ref_start; ref1 < ref_count1; ref1++){
- int poc1 = h->ref_list[1][ref1].poc;
- int td = av_clip(poc1 - poc0, -128, 127);
- int w= 32;
- if(td){
- int tb = av_clip(cur_poc - poc0, -128, 127);
- int tx = (16384 + (FFABS(td) >> 1)) / td;
- int dist_scale_factor = (tb*tx + 32) >> 8;
- if(dist_scale_factor >= -64 && dist_scale_factor <= 128)
- w = 64 - dist_scale_factor;
+ int w = 32;
+ if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
+ int poc1 = h->ref_list[1][ref1].poc;
+ int td = av_clip(poc1 - poc0, -128, 127);
+ if(td){
+ int tb = av_clip(cur_poc - poc0, -128, 127);
+ int tx = (16384 + (FFABS(td) >> 1)) / td;
+ int dist_scale_factor = (tb*tx + 32) >> 8;
+ if(dist_scale_factor >= -64 && dist_scale_factor <= 128)
+ w = 64 - dist_scale_factor;
+ }
}
if(field<0){
h->implicit_weight[ref0][ref1][0]=
h->prev_interlaced_frame = 1;
init_scan_tables(h);
- ff_h264_alloc_tables(h);
+ if (ff_h264_alloc_tables(h) < 0) {
+ av_log(h->s.avctx, AV_LOG_ERROR, "Could not allocate memory for h264\n");
+ return AVERROR(ENOMEM);
+ }
if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_SLICE)) {
if (context_init(h) < 0) {
}
if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
unsigned int long_arg= get_ue_golomb_31(gb);
- if(long_arg >= 32 || (long_arg >= 16 && !(opcode == MMCO_LONG2UNUSED && FIELD_PICTURE))){
+ if(long_arg >= 32 || (long_arg >= 16 && !(opcode == MMCO_SET_MAX_LONG && long_arg == 16) && !(opcode == MMCO_LONG2UNUSED && FIELD_PICTURE))){
av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
return -1;
}
return -1;
}
+ start = 48; /* hardcoded for now */
+
+ if (start >= buf_size) {
+ av_log(s->avctx, AV_LOG_ERROR, "input buffer size too small (%d)\n", buf_size);
+ return AVERROR_INVALIDDATA;
+ }
+
s->decode_delta = buf[18];
/* decide whether frame uses deltas or not */
for (i = 0; i < buf_size; i++)
buf[i] = av_reverse[buf[i]];
#endif
- start = 48; /* hardcoded for now */
- init_get_bits(&s->gb, buf + start, buf_size - start);
+ init_get_bits(&s->gb, buf + start, (buf_size - start) * 8);
if (s->decode_delta) { /* intraframe */
ir2_decode_plane(s, avctx->width, avctx->height,
if (video_type == 0 || video_type == 1) {
GetBitContext gb;
- init_get_bits(&gb, buf, FFMIN(video_size, buf_end - buf));
+ init_get_bits(&gb, buf, FFMIN(video_size, (buf_end - buf) * 8));
for (j = 0; j < avctx->height; j += 8)
for (i = 0; i < avctx->width; i += 8)
NULL,
decode_end,
decode_frame,
- .max_lowres = 1,
.long_name = NULL_IF_CONFIG_SMALL("Kega Game Video"),
};
--- /dev/null
+LIBAVCODEC_$MAJOR {
+ global: *;
+ local:
+ ff_*_bsf;
+ ff_*_decoder;
+ ff_*_encoder;
+ ff_*_hwaccel;
+ ff_*_parser;
+};
}
x4->out_pic.key_frame = pic_out.b_keyframe;
- x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
+ if (bufsize)
+ x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
return bufsize;
}
}
}
- if (s->restart_interval && !--s->restart_count) {
+ if (s->restart_interval && show_bits(&s->gb, 8) == 0xFF){ /* skip RSTn */
+ --s->restart_count;
align_get_bits(&s->gb);
- skip_bits(&s->gb, 16); /* skip RSTn */
+ while(show_bits(&s->gb, 8) == 0xFF)
+ skip_bits(&s->gb, 8);
+ skip_bits(&s->gb, 8);
for (i=0; i<nb_components; i++) /* reset dc */
s->last_dc[i] = 1024;
}
}
FF_ALLOCZ_OR_GOTO(s->avctx, pic->mbskip_table , mb_array_size * sizeof(uint8_t)+2, fail) //the +2 is for the slice end check
- FF_ALLOCZ_OR_GOTO(s->avctx, pic->qscale_table , mb_array_size * sizeof(uint8_t) , fail)
+ FF_ALLOCZ_OR_GOTO(s->avctx, pic->qscale_table_base , (big_mb_num + s->mb_stride) * sizeof(uint8_t) , fail)
FF_ALLOCZ_OR_GOTO(s->avctx, pic->mb_type_base , (big_mb_num + s->mb_stride) * sizeof(uint32_t), fail)
pic->mb_type= pic->mb_type_base + 2*s->mb_stride+1;
+ pic->qscale_table = pic->qscale_table_base + 2*s->mb_stride + 1;
if(s->out_format == FMT_H264){
for(i=0; i<2; i++){
FF_ALLOCZ_OR_GOTO(s->avctx, pic->motion_val_base[i], 2 * (b4_array_size+4) * sizeof(int16_t), fail)
av_freep(&pic->mc_mb_var);
av_freep(&pic->mb_mean);
av_freep(&pic->mbskip_table);
- av_freep(&pic->qscale_table);
+ av_freep(&pic->qscale_table_base);
av_freep(&pic->mb_type_base);
av_freep(&pic->dct_coeff);
av_freep(&pic->pan_scan);
* halfpel luma planes.
*/
uint8_t *interpolated[3];
+ int8_t *qscale_table_base;
int16_t (*motion_val_base[2])[2];
uint32_t *mb_type_base;
#define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type
{"lpc_passes", "deprecated, use flac-specific options", OFFSET(lpc_passes), FF_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
#endif
{"slices", "number of slices, used in parallelized decoding", OFFSET(slices), FF_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, V|E},
-{"thread_type", "select multithreading type", OFFSET(thread_type), FF_OPT_TYPE_INT, {.dbl = FF_THREAD_SLICE|FF_THREAD_FRAME }, 0, INT_MAX, V|E|D, "thread_type"},
+{"thread_type", "select multithreading type", OFFSET(thread_type), FF_OPT_TYPE_FLAGS, {.dbl = FF_THREAD_SLICE|FF_THREAD_FRAME }, 0, INT_MAX, V|E|D, "thread_type"},
{"slice", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_THREAD_SLICE }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
{"frame", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_THREAD_FRAME }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
{"vbv_delay", "initial buffer fill time in periods of 27Mhz clock", 0, FF_OPT_TYPE_INT64, {.dbl = 0 }, 0, INT64_MAX},
decode_frame,
CODEC_CAP_DR1 /*| CODEC_CAP_DRAW_HORIZ_BAND*/,
NULL,
- .max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("PNG image"),
};
pnm_decode_frame,
CODEC_CAP_DR1,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_GRAY8, PIX_FMT_GRAY16BE, PIX_FMT_NONE},
- .max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
};
#endif
pnm_decode_frame,
CODEC_CAP_DR1,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
- .max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
};
#endif
pnm_decode_frame,
CODEC_CAP_DR1,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB48BE, PIX_FMT_NONE},
- .max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
};
#endif
pnm_decode_frame,
CODEC_CAP_DR1,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_MONOWHITE, PIX_FMT_NONE},
- .max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),
};
#endif
pnm_decode_frame,
CODEC_CAP_DR1,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_GRAY8, PIX_FMT_MONOWHITE, PIX_FMT_NONE},
- .max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("PAM (Portable AnyMap) image"),
};
#endif
L(\name):
.endm
-.macro movrel rd, sym
+.macro movrel rd, sym, gp
ld \rd, \sym@got(r2)
.endm
+.macro get_got rd
+.endm
+
#else /* ARCH_PPC64 */
#define PTR .int
\name:
.endm
-.macro movrel rd, sym
+.macro movrel rd, sym, gp
#if CONFIG_PIC
- lwz \rd, \sym@got(r2)
+ lwz \rd, \sym@got(\gp)
#else
lis \rd, \sym@ha
la \rd, \sym@l(\rd)
#endif
.endm
+.macro get_got rd
+#if CONFIG_PIC
+ bcl 20, 31, .Lgot\@
+.Lgot\@:
+ mflr \rd
+ addis \rd, \rd, _GLOBAL_OFFSET_TABLE_ - .Lgot\@@ha
+ addi \rd, \rd, _GLOBAL_OFFSET_TABLE_ - .Lgot\@@l
+#endif
+.endm
+
#endif /* ARCH_PPC64 */
#if HAVE_IBM_ASM
mflr r0
stp r0, 2*PS(r1)
stpu r1, -(160+16*PS)(r1)
+ get_got r11
addi r6, r1, 16*PS
stvm r6, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29
mfvrsave r0
li r6, 0xfffffffc
mtvrsave r6
- movrel r6, fft_data
+ movrel r6, fft_data, r11
lvm r6, v14, v15, v16, v17, v18, v19, v20, v21
lvm r6, v22, v23, v24, v25, v26, v27, v28, v29
li r9, 16
- movrel r12, X(ff_cos_tabs)
+ movrel r12, X(ff_cos_tabs), r11
- movrel r6, fft_dispatch_tab\interleave\()_altivec
+ movrel r6, fft_dispatch_tab\interleave\()_altivec, r11
lwz r3, 0(r3)
subi r3, r3, 2
slwi r3, r3, 2+ARCH_PPC64
s->avctx= avctx;
s->out_format = FMT_H263;
s->codec_id= avctx->codec_id;
+ avctx->flags |= CODEC_FLAG_EMU_EDGE;
s->orig_width = s->width = avctx->coded_width;
s->orig_height= s->height = avctx->coded_height;
if(MPV_frame_start(s, avctx) < 0)
return -1;
ff_er_frame_start(s);
+ } else {
+ if (s->current_picture_ptr->pict_type != s->pict_type) {
+ av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n");
+ return -1;
+ }
}
av_dlog(avctx, "qscale=%d\n", s->qscale);
if(avctx->extradata_size - 8 < (r->rpr - 1) * 2){
av_log(avctx, AV_LOG_ERROR, "Insufficient extradata - need at least %d bytes, got %d\n",
6 + r->rpr * 2, avctx->extradata_size);
+ return AVERROR(EINVAL);
}
r->parse_slice_header = rv30_parse_slice_header;
r->decode_intra_types = rv30_decode_intra_types;
slice_count = (*buf++) + 1;
slices_hdr = buf + 4;
buf += 8 * slice_count;
+ buf_size -= 1 + 8 * slice_count;
}else
slice_count = avctx->slice_count;
//parse first slice header to check whether this frame can be decoded
- if(get_slice_offset(avctx, slices_hdr, 0) > buf_size){
- av_log(avctx, AV_LOG_ERROR, "Slice offset is greater than frame size\n");
+ if(get_slice_offset(avctx, slices_hdr, 0) < 0 ||
+ get_slice_offset(avctx, slices_hdr, 0) > buf_size){
+ av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n");
return -1;
}
- init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, 0), buf_size-get_slice_offset(avctx, slices_hdr, 0));
+ init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, 0), (buf_size-get_slice_offset(avctx, slices_hdr, 0))*8);
if(r->parse_slice_header(r, &r->s.gb, &si) < 0 || si.start){
av_log(avctx, AV_LOG_ERROR, "First slice header is incorrect\n");
return -1;
if( (avctx->skip_frame >= AVDISCARD_NONREF && si.type==AV_PICTURE_TYPE_B)
|| (avctx->skip_frame >= AVDISCARD_NONKEY && si.type!=AV_PICTURE_TYPE_I)
|| avctx->skip_frame >= AVDISCARD_ALL)
- return buf_size;
+ return avpkt->size;
for(i=0; i<slice_count; i++){
int offset= get_slice_offset(avctx, slices_hdr, i);
else
size= get_slice_offset(avctx, slices_hdr, i+1) - offset;
- if(offset > buf_size){
- av_log(avctx, AV_LOG_ERROR, "Slice offset is greater than frame size\n");
+ if(offset < 0 || offset > buf_size || size < 0){
+ av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n");
break;
}
break;
}
- if(last){
+ if(last && s->current_picture_ptr){
if(r->loop_filter)
r->loop_filter(r, s->mb_height - 1);
ff_er_frame_end(s);
}
s->current_picture_ptr= NULL; //so we can detect if frame_end wasnt called (find some nicer solution...)
}
- return buf_size;
+ return avpkt->size;
}
av_cold int ff_rv34_decode_end(AVCodecContext *avctx)
return -1;
}
b1 = get_bits_count(gb);
- i1 = get_vlc2(gb, ctx->v1->table, SMKTREE_BITS, 3);
+ i1 = ctx->v1->table ? get_vlc2(gb, ctx->v1->table, SMKTREE_BITS, 3) : 0;
b1 = get_bits_count(gb) - b1;
b2 = get_bits_count(gb);
- i2 = get_vlc2(gb, ctx->v2->table, SMKTREE_BITS, 3);
+ i2 = ctx->v2->table ? get_vlc2(gb, ctx->v2->table, SMKTREE_BITS, 3) : 0;
b2 = get_bits_count(gb) - b2;
+ if (i1 < 0 || i2 < 0)
+ return -1;
val = ctx->recode1[i1] | (ctx->recode2[i2] << 8);
if(val == ctx->escapes[0]) {
ctx->last[0] = hc->current;
smk->mmap_tbl[0] = 0;
smk->mmap_last[0] = smk->mmap_last[1] = smk->mmap_last[2] = 1;
} else {
- smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size);
+ if (smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size))
+ return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MCLR tree\n");
smk->mclr_tbl[0] = 0;
smk->mclr_last[0] = smk->mclr_last[1] = smk->mclr_last[2] = 1;
} else {
- smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size);
+ if (smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size))
+ return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping FULL tree\n");
smk->full_tbl[0] = 0;
smk->full_last[0] = smk->full_last[1] = smk->full_last[2] = 1;
} else {
- smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size);
+ if (smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size))
+ return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping TYPE tree\n");
smk->type_tbl[0] = 0;
smk->type_last[0] = smk->type_last[1] = smk->type_last[2] = 1;
} else {
- smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size);
+ if (smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size))
+ return -1;
}
return 0;
return -1;
}
- decode_header_trees(c);
-
+ if (decode_header_trees(c))
+ return -1;
return 0;
}
if(bits) { //decode 16-bit data
for(i = stereo; i >= 0; i--)
pred[i] = av_bswap16(get_bits(&gb, 16));
- for(i = 0; i < stereo; i++)
+ for(i = 0; i <= stereo; i++)
*samples++ = pred[i];
- for(i = 0; i < unp_size / 2; i++) {
+ for(; i < unp_size / 2; i++) {
if(i & stereo) {
if(vlc[2].table)
res = get_vlc2(&gb, vlc[2].table, SMKTREE_BITS, 3);
} else { //8-bit data
for(i = stereo; i >= 0; i--)
pred[i] = get_bits(&gb, 8);
- for(i = 0; i < stereo; i++)
+ for(i = 0; i <= stereo; i++)
*samples8++ = pred[i];
- for(i = 0; i < unp_size; i++) {
+ for(; i < unp_size; i++) {
if(i & stereo){
if(vlc[1].table)
res = get_vlc2(&gb, vlc[1].table, SMKTREE_BITS, 3);
sp5x_decode_frame,
CODEC_CAP_DR1,
NULL,
- .max_lowres = 5,
+ .max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("Sunplus JPEG (SP5X)"),
};
if (avctx->extradata_size < 30)
return -1;
- init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size);
+ init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size * 8);
if (show_bits_long(&s->gb, 32) == AV_RL32("TTA1"))
{
/* signature */
if(ar && ar < 14){
v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
}else if(ar == 15){
- w = get_bits(gb, 8);
- h = get_bits(gb, 8);
+ w = get_bits(gb, 8) + 1;
+ h = get_bits(gb, 8) + 1;
v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
}
av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n", v->s.avctx->sample_aspect_ratio.num, v->s.avctx->sample_aspect_ratio.den);
}
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] + 8*s->linesize, s->linesize, pq);
- if (s->mb_y == s->mb_height-1) {
+ if (s->mb_y == s->end_mb_y-1) {
if (s->mb_x) {
v->vc1dsp.vc1_h_loop_filter16(s->dest[0], s->linesize, pq);
v->vc1dsp.vc1_h_loop_filter8(s->dest[1], s->uvlinesize, pq);
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 8 * s->linesize, s->linesize, pq);
}
- if (s->mb_y == s->mb_height) {
+ if (s->mb_y == s->end_mb_y) {
if (s->mb_x) {
if (s->mb_x >= 2)
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize - 16, s->linesize, pq);
} else {
dst = s->dest[0] + (block_num & 1) * 8 + ((block_num & 2) * 4 - 8) * linesize;
}
- if (s->mb_y != s->mb_height || block_num < 2) {
+ if (s->mb_y != s->end_mb_y || block_num < 2) {
int16_t (*mv)[2];
int mv_stride;
s->mb_x = 0;
ff_init_block_index(s);
memset(&s->coded_block[s->block_index[0]-s->b8_stride], 0,
- s->b8_stride * sizeof(*s->coded_block));
+ (1 + s->b8_stride) * sizeof(*s->coded_block));
}
for(; s->mb_y < s->end_mb_y; s->mb_y++) {
s->mb_x = 0;
if(v->s.loop_filter) vc1_loop_filter_iblk_delayed(v, v->pq);
}
if (v->s.loop_filter)
- ff_draw_horiz_band(s, (s->mb_height-1)*16, 16);
+ ff_draw_horiz_band(s, (s->end_mb_y-1)*16, 16);
ff_er_add_slice(s, 0, s->start_mb_y, s->mb_width - 1, s->end_mb_y - 1, (AC_END|DC_END|MV_END));
}
s->first_slice_line = 0;
}
if (v->s.loop_filter)
- ff_draw_horiz_band(s, (s->mb_height-1)*16, 16);
+ ff_draw_horiz_band(s, (s->end_mb_y-1)*16, 16);
ff_er_add_slice(s, 0, s->start_mb_y, s->mb_width - 1, s->end_mb_y - 1, (AC_END|DC_END|MV_END));
}
{
MpegEncContext *s = &v->s;
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
+ ff_er_add_slice(s, 0, s->start_mb_y, s->mb_width - 1, s->end_mb_y - 1, (AC_END|DC_END|MV_END));
s->first_slice_line = 1;
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
+ for(s->mb_y = s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
s->mb_x = 0;
ff_init_block_index(s);
ff_update_block_index(s);
return vp3_decode_init(avctx);
}
+static void vp3_decode_flush(AVCodecContext *avctx)
+{
+ Vp3DecodeContext *s = avctx->priv_data;
+
+ if (s->golden_frame.data[0]) {
+ if (s->golden_frame.data[0] == s->last_frame.data[0])
+ memset(&s->last_frame, 0, sizeof(AVFrame));
+ if (s->current_frame.data[0] == s->golden_frame.data[0])
+ memset(&s->current_frame, 0, sizeof(AVFrame));
+ ff_thread_release_buffer(avctx, &s->golden_frame);
+ }
+ if (s->last_frame.data[0]) {
+ if (s->current_frame.data[0] == s->last_frame.data[0])
+ memset(&s->current_frame, 0, sizeof(AVFrame));
+ ff_thread_release_buffer(avctx, &s->last_frame);
+ }
+ if (s->current_frame.data[0])
+ ff_thread_release_buffer(avctx, &s->current_frame);
+}
+
AVCodec ff_theora_decoder = {
"theora",
AVMEDIA_TYPE_VIDEO,
vp3_decode_frame,
CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
NULL,
+ .flush = vp3_decode_flush,
.long_name = NULL_IF_CONFIG_SMALL("Theora"),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
};
vp3_decode_frame,
CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
NULL,
+ .flush = vp3_decode_flush,
.long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
};
}
}else{
t = get_unary_0_33(gb);
- if(t >= 2) t = get_bits(gb, t - 1) | (1 << (t-1));
+ if(t >= 2){
+ if(get_bits_left(gb) < t-1)
+ goto error;
+ t = get_bits(gb, t - 1) | (1 << (t-1));
+ }else{
+ if(get_bits_left(gb) < 0)
+ goto error;
+ }
ctx->zeroes = t;
if(ctx->zeroes){
memset(ctx->ch[0].median, 0, sizeof(ctx->ch[0].median));
}
}
- if(get_bits_count(gb) >= ctx->data_size){
- *last = 1;
- return 0;
- }
-
if(ctx->zero){
t = 0;
ctx->zero = 0;
}else{
t = get_unary_0_33(gb);
- if(get_bits_count(gb) >= ctx->data_size){
- *last = 1;
- return 0;
- }
+ if(get_bits_left(gb) < 0)
+ goto error;
if(t == 16) {
t2 = get_unary_0_33(gb);
- if(t2 < 2) t += t2;
- else t += get_bits(gb, t2 - 1) | (1 << (t2 - 1));
+ if(t2 < 2){
+ if(get_bits_left(gb) < 0)
+ goto error;
+ t += t2;
+ }else{
+ if(get_bits_left(gb) < t2 - 1)
+ goto error;
+ t += get_bits(gb, t2 - 1) | (1 << (t2 - 1));
+ }
}
if(ctx->one){
}
if(!c->error_limit){
ret = base + get_tail(gb, add);
+ if (get_bits_left(gb) <= 0)
+ goto error;
}else{
int mid = (base*2 + add + 1) >> 1;
while(add > c->error_limit){
+ if(get_bits_left(gb) <= 0)
+ goto error;
if(get_bits1(gb)){
add -= (mid - base);
base = mid;
if(ctx->hybrid_bitrate)
c->slow_level += wp_log2(ret) - LEVEL_DECAY(c->slow_level);
return sign ? ~ret : ret;
+
+error:
+ *last = 1;
+ return 0;
}
static inline int wv_get_value_integer(WavpackFrameContext *s, uint32_t *crc, int S)
if(s->extra_bits){
S <<= s->extra_bits;
- if(s->got_extra_bits){
+ if(s->got_extra_bits && get_bits_left(&s->gb_extra_bits) >= s->extra_bits){
S |= get_bits(&s->gb_extra_bits, s->extra_bits);
*crc = *crc * 9 + (S&0xffff) * 3 + ((unsigned)S>>16);
}
count++;
}while(!last && count < s->max_samples);
- s->samples_left -= count;
+ if (last)
+ s->samples_left = 0;
+ else
+ s->samples_left -= count;
if(!s->samples_left){
if(crc != s->CRC){
av_log(s->avctx, AV_LOG_ERROR, "CRC error\n");
count++;
}while(!last && count < s->max_samples);
- s->samples_left -= count;
+ if (last)
+ s->samples_left = 0;
+ else
+ s->samples_left -= count;
if(!s->samples_left){
if(crc != s->CRC){
av_log(s->avctx, AV_LOG_ERROR, "CRC error\n");
}
switch(id & WP_IDF_MASK){
case WP_ID_DECTERMS:
- s->terms = size;
- if(s->terms > MAX_TERMS){
+ if(size > MAX_TERMS){
av_log(avctx, AV_LOG_ERROR, "Too many decorrelation terms\n");
+ s->terms = 0;
buf += ssize;
continue;
}
+ s->terms = size;
for(i = 0; i < s->terms; i++) {
s->decorr[s->terms - i - 1].value = (*buf & 0x1F) - 5;
s->decorr[s->terms - i - 1].delta = *buf >> 5;
samplecount = wv_unpack_stereo(s, &s->gb, samples, AV_SAMPLE_FMT_S32);
else
samplecount = wv_unpack_stereo(s, &s->gb, samples, AV_SAMPLE_FMT_FLT);
+
+ if (samplecount < 0)
+ return -1;
+
samplecount >>= 1;
}else{
const int channel_stride = avctx->channels;
else
samplecount = wv_unpack_mono(s, &s->gb, samples, AV_SAMPLE_FMT_FLT);
+ if (samplecount < 0)
+ return -1;
+
if(s->stereo && avctx->sample_fmt == AV_SAMPLE_FMT_S16){
int16_t *dst = (int16_t*)samples + 1;
int16_t *src = (int16_t*)samples;
return 0;
}
-static int xan_huffman_decode(unsigned char *dest, const unsigned char *src,
- int dest_len)
+static int xan_huffman_decode(unsigned char *dest, int dest_len,
+ const unsigned char *src, int src_len)
{
unsigned char byte = *src++;
unsigned char ival = byte + 0x16;
const unsigned char * ptr = src + byte*2;
+ int ptr_len = src_len - 1 - byte*2;
unsigned char val = ival;
unsigned char *dest_end = dest + dest_len;
GetBitContext gb;
- init_get_bits(&gb, ptr, 0); // FIXME: no src size available
+ if (ptr_len < 0)
+ return AVERROR_INVALIDDATA;
+
+ init_get_bits(&gb, ptr, ptr_len * 8);
while ( val != 0x16 ) {
val = src[val - 0x17 + get_bits1(&gb) * byte];
}
}
-static void xan_wc3_decode_frame(XanContext *s) {
+static int xan_wc3_decode_frame(XanContext *s) {
int width = s->avctx->width;
int height = s->avctx->height;
const unsigned char *size_segment;
const unsigned char *vector_segment;
const unsigned char *imagedata_segment;
+ int huffman_offset, size_offset, vector_offset, imagedata_offset;
+
+ if (s->size < 8)
+ return AVERROR_INVALIDDATA;
+
+ huffman_offset = AV_RL16(&s->buf[0]);
+ size_offset = AV_RL16(&s->buf[2]);
+ vector_offset = AV_RL16(&s->buf[4]);
+ imagedata_offset = AV_RL16(&s->buf[6]);
- huffman_segment = s->buf + AV_RL16(&s->buf[0]);
- size_segment = s->buf + AV_RL16(&s->buf[2]);
- vector_segment = s->buf + AV_RL16(&s->buf[4]);
- imagedata_segment = s->buf + AV_RL16(&s->buf[6]);
+ if (huffman_offset >= s->size ||
+ size_offset >= s->size ||
+ vector_offset >= s->size ||
+ imagedata_offset >= s->size)
+ return AVERROR_INVALIDDATA;
- xan_huffman_decode(opcode_buffer, huffman_segment, opcode_buffer_size);
+ huffman_segment = s->buf + huffman_offset;
+ size_segment = s->buf + size_offset;
+ vector_segment = s->buf + vector_offset;
+ imagedata_segment = s->buf + imagedata_offset;
+
+ if (xan_huffman_decode(opcode_buffer, opcode_buffer_size,
+ huffman_segment, s->size - huffman_offset) < 0)
+ return AVERROR_INVALIDDATA;
if (imagedata_segment[0] == 2)
xan_unpack(s->buffer2, &imagedata_segment[1], s->buffer2_size);
y += (x + size) / width;
x = (x + size) % width;
}
+ return 0;
}
#if RUNTIME_GAMMA
s->buf = buf;
s->size = buf_size;
- xan_wc3_decode_frame(s);
+ if (xan_wc3_decode_frame(s) < 0)
+ return AVERROR_INVALIDDATA;
/* release the last frame if it is allocated */
if (s->last_frame.data[0])
}
snd_pcm_hw_params_get_buffer_size_max(hw_params, &buffer_size);
+ buffer_size = FFMIN(buffer_size, ALSA_BUFFER_SIZE_MAX);
/* TODO: maybe use ctx->max_picture_buffer somehow */
res = snd_pcm_hw_params_set_buffer_size_near(h, hw_params, &buffer_size);
if (res < 0) {
}
snd_pcm_hw_params_get_period_size_min(hw_params, &period_size, NULL);
+ if (!period_size)
+ period_size = buffer_size / 4;
res = snd_pcm_hw_params_set_period_size_near(h, hw_params, &period_size, NULL);
if (res < 0) {
av_log(ctx, AV_LOG_ERROR, "cannot set ALSA period size (%s)\n",
other formats */
#define DEFAULT_CODEC_ID AV_NE(CODEC_ID_PCM_S16BE, CODEC_ID_PCM_S16LE)
+#define ALSA_BUFFER_SIZE_MAX 32768
+
typedef struct {
AVClass *class;
snd_pcm_t *h;
--- /dev/null
+LIBAVDEVICE_$MAJOR {
+ global: avdevice_*;
+ local: *;
+};
--- /dev/null
+LIBAVFILTER_$MAJOR {
+ global: avfilter_*; av_*;
+ local: *;
+};
/* #define DEBUG */
#include <opencv/cv.h>
-#include <opencv/cxtypes.h>
+#include <opencv/cxcore.h>
#include "libavutil/avstring.h"
#include "libavutil/file.h"
#include "avfilter.h"
scale->input_is_pal = av_pix_fmt_descriptors[inlink->format].flags & PIX_FMT_PAL;
+ if (scale->sws)
+ sws_freeContext(scale->sws);
scale->sws = sws_getContext(inlink ->w, inlink ->h, inlink ->format,
outlink->w, outlink->h, outlink->format,
scale->flags, NULL, NULL, NULL);
av_log(s, AV_LOG_ERROR, "Scalable configurations are not allowed in ADTS\n");
return -1;
}
+ if (get_bits(&gb, 1)) {
+ av_log(s, AV_LOG_ERROR, "Extension flag is not allowed in ADTS\n");
+ return -1;
+ }
if (!adts->channel_conf) {
init_put_bits(&pb, adts->pce_data, MAX_PCE_SIZE);
if (ape->seektablelength > 0) {
ape->seektable = av_malloc(ape->seektablelength);
+ if (!ape->seektable)
+ return AVERROR(ENOMEM);
for (i = 0; i < ape->seektablelength / sizeof(uint32_t); i++)
ape->seektable[i] = avio_rl32(pb);
}
break;
arraylen = avio_rb32(ioc);
+ if (arraylen >> 28)
+ break;
+
/*
* Expect only 'times' or 'filepositions' sub-arrays in other case refuse to use such metadata
* for indexing
AVCodecContext *audio_enc = NULL, *video_enc = NULL;
int i;
double framerate = 0.0;
- int metadata_size_pos, data_size;
+ int64_t metadata_size_pos, data_size;
AVDictionaryEntry *tag = NULL;
for(i=0; i<s->nb_streams; i++){
int map_len;
int len;
AVRational main_timebase = {0, 0};
- struct gxf_stream_info si;
+ struct gxf_stream_info *si = s->priv_data;
int i;
if (!parse_packet_header(pb, &pkt_type, &map_len) || pkt_type != PKT_MAP) {
av_log(s, AV_LOG_ERROR, "map packet not found\n");
return 0;
}
map_len -= len;
- gxf_material_tags(pb, &len, &si);
+ gxf_material_tags(pb, &len, si);
avio_skip(pb, len);
map_len -= 2;
len = avio_rb16(pb); // length of track description
track_id = avio_r8(pb);
track_len = avio_rb16(pb);
len -= track_len;
- gxf_track_tags(pb, &track_len, &si);
+ gxf_track_tags(pb, &track_len, si);
avio_skip(pb, track_len);
if (!(track_type & 0x80)) {
av_log(s, AV_LOG_ERROR, "invalid track type %x\n", track_type);
if (idx < 0) continue;
st = s->streams[idx];
if (!main_timebase.num || !main_timebase.den) {
- main_timebase.num = si.frames_per_second.den;
- main_timebase.den = si.frames_per_second.num * 2;
+ main_timebase.num = si->frames_per_second.den;
+ main_timebase.den = si->frames_per_second.num * 2;
}
- st->start_time = si.first_field;
- if (si.first_field != AV_NOPTS_VALUE && si.last_field != AV_NOPTS_VALUE)
- st->duration = si.last_field - si.first_field;
+ st->start_time = si->first_field;
+ if (si->first_field != AV_NOPTS_VALUE && si->last_field != AV_NOPTS_VALUE)
+ st->duration = si->last_field - si->first_field;
}
if (len < 0)
av_log(s, AV_LOG_ERROR, "invalid track description length specified\n");
AVIOContext *pb = s->pb;
GXFPktType pkt_type;
int pkt_len;
+ struct gxf_stream_info *si = s->priv_data;
+
while (!pb->eof_reached) {
AVStream *st;
int track_type, track_id, ret;
avio_skip(pb, skip);
pkt->stream_index = stream_index;
pkt->dts = field_nr;
+
+ //set duration manually for DV or else lavf misdetects the frame rate
+ if (st->codec->codec_id == CODEC_ID_DVVIDEO)
+ pkt->duration = si->fields_per_frame;
+
return ret;
}
return AVERROR(EIO);
AVInputFormat ff_gxf_demuxer = {
"gxf",
NULL_IF_CONFIG_SMALL("GXF format"),
- 0,
+ sizeof(struct gxf_stream_info),
gxf_probe,
gxf_header,
gxf_packet,
--- /dev/null
+LIBAVFORMAT_$MAJOR {
+ global: *;
+ local:
+ ff_*_demuxer;
+ ff_*_muxer;
+ ff_*_protocol;
+};
uint32_t id = syntax->id;
uint64_t length;
int res;
+ void *newelem;
data = (char *)data + syntax->data_offset;
if (syntax->list_elem_size) {
EbmlList *list = data;
- list->elem = av_realloc(list->elem, (list->nb_elem+1)*syntax->list_elem_size);
+ newelem = av_realloc(list->elem, (list->nb_elem+1)*syntax->list_elem_size);
+ if (!newelem)
+ return AVERROR(ENOMEM);
+ list->elem = newelem;
data = (char*)list->elem + list->nb_elem*syntax->list_elem_size;
memset(data, 0, syntax->list_elem_size);
list->nb_elem++;
* Not fully fool-proof, but good enough. */
for (i = 0; i < FF_ARRAY_ELEMS(matroska_doctypes); i++) {
int probelen = strlen(matroska_doctypes[i]);
+ if (total < probelen)
+ continue;
for (n = 4+size; n <= 4+size+total-probelen; n++)
if (!memcmp(p->buf+n, matroska_doctypes[i], probelen))
return AVPROBE_SCORE_MAX;
uint8_t* data = *buf;
int isize = *buf_size;
uint8_t* pkt_data = NULL;
+ uint8_t* newpktdata;
int pkt_size = isize;
int result = 0;
int olen;
zstream.avail_in = isize;
do {
pkt_size *= 3;
- pkt_data = av_realloc(pkt_data, pkt_size);
+ newpktdata = av_realloc(pkt_data, pkt_size);
+ if (!newpktdata) {
+ inflateEnd(&zstream);
+ goto failed;
+ }
+ pkt_data = newpktdata;
zstream.avail_out = pkt_size - zstream.total_out;
zstream.next_out = pkt_data + zstream.total_out;
result = inflate(&zstream, Z_NO_FLUSH);
bzstream.avail_in = isize;
do {
pkt_size *= 3;
- pkt_data = av_realloc(pkt_data, pkt_size);
+ newpktdata = av_realloc(pkt_data, pkt_size);
+ if (!newpktdata) {
+ BZ2_bzDecompressEnd(&bzstream);
+ goto failed;
+ }
+ pkt_data = newpktdata;
bzstream.avail_out = pkt_size - bzstream.total_out_lo32;
bzstream.next_out = pkt_data + bzstream.total_out_lo32;
result = BZ2_bzDecompress(&bzstream);
}
}
-static void matroska_merge_packets(AVPacket *out, AVPacket *in)
+static int matroska_merge_packets(AVPacket *out, AVPacket *in)
{
- out->data = av_realloc(out->data, out->size+in->size);
+ void *newdata = av_realloc(out->data, out->size+in->size);
+ if (!newdata)
+ return AVERROR(ENOMEM);
+ out->data = newdata;
memcpy(out->data+out->size, in->data, in->size);
out->size += in->size;
av_destruct_packet(in);
av_free(in);
+ return 0;
}
static void matroska_convert_tag(AVFormatContext *s, EbmlList *list,
memcpy(pkt, matroska->packets[0], sizeof(AVPacket));
av_free(matroska->packets[0]);
if (matroska->num_packets > 1) {
+ void *newpackets;
memmove(&matroska->packets[0], &matroska->packets[1],
(matroska->num_packets - 1) * sizeof(AVPacket *));
- matroska->packets =
- av_realloc(matroska->packets, (matroska->num_packets - 1) *
- sizeof(AVPacket *));
+ newpackets = av_realloc(matroska->packets,
+ (matroska->num_packets - 1) * sizeof(AVPacket *));
+ if (newpackets)
+ matroska->packets = newpackets;
} else {
av_freep(&matroska->packets);
}
if ((index = av_index_search_timestamp(st, timestamp, flags)) < 0) {
avio_seek(s->pb, st->index_entries[st->nb_index_entries-1].pos, SEEK_SET);
+ matroska->current_id = 0;
while ((index = av_index_search_timestamp(st, timestamp, flags)) < 0) {
matroska_clear_queue(matroska);
if (matroska_parse_cluster(matroska) < 0)
}
avio_seek(s->pb, st->index_entries[index_min].pos, SEEK_SET);
+ matroska->current_id = 0;
matroska->skip_to_keyframe = !(flags & AVSEEK_FLAG_ANY);
matroska->skip_to_timecode = st->index_entries[index].timestamp;
matroska->done = 0;
avio_wb32(pb, 11);
ffio_wfourcc(pb, "dac3");
- init_get_bits(&gbc, track->vosData+4, track->vosLen-4);
+ init_get_bits(&gbc, track->vosData+4, (track->vosLen-4) * 8);
fscod = get_bits(&gbc, 2);
frmsizecod = get_bits(&gbc, 6);
bsid = get_bits(&gbc, 5);
avio_wb32(pb, 0); /* reserved */
avio_wb32(pb, 0); /* reserved */
- avio_wb32(pb, 0x0); /* reserved (Layer & Alternate group) */
+ avio_wb16(pb, 0); /* layer */
+ avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
/* Volume, only for audio */
if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
avio_wb16(pb, 0x0100);
{
AVFormatContext *s = ts->stream;
MpegTSFilter *tss;
- int len, pid, cc, cc_ok, afc, is_start;
+ int len, pid, cc, expected_cc, cc_ok, afc, is_start;
const uint8_t *p, *p_end;
int64_t pos;
/* continuity check (currently not used) */
cc = (packet[3] & 0xf);
- cc_ok = (tss->last_cc < 0) || ((((tss->last_cc + 1) & 0x0f) == cc));
+ expected_cc = (packet[3] & 0x10) ? (tss->last_cc + 1) & 0x0f : tss->last_cc;
+ cc_ok = (tss->last_cc < 0) || (expected_cc == cc);
tss->last_cc = cc;
/* skip adaptation field */
default:
/* Private uid used by SONY C0023S01.mxf */
if (IS_KLV_KEY(uid, mxf_sony_mpeg4_extradata)) {
- descriptor->extradata = av_malloc(size);
+ descriptor->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!descriptor->extradata)
return -1;
descriptor->extradata_size = size;
static uint32_t ff_framenum_to_12m_time_code(unsigned frame, int drop, int fps)
{
return (0 << 31) | // color frame flag
- (0 << 30) | // drop frame flag
+ (drop << 30) | // drop frame flag
( ((frame % fps) / 10) << 28) | // tens of frames
( ((frame % fps) % 10) << 24) | // units of frames
(0 << 23) | // field phase (NTSC), b0 (PAL)
ogg->state = ost->next;
if (!discard){
+ struct ogg_stream *old_streams = ogg->streams;
+
for (i = 0; i < ogg->nstreams; i++)
av_free (ogg->streams[i].buf);
avio_seek (bc, ost->pos, SEEK_SET);
ogg->curidx = ost->curidx;
ogg->nstreams = ost->nstreams;
- memcpy(ogg->streams, ost->streams,
- ost->nstreams * sizeof(*ogg->streams));
+ ogg->streams = av_realloc (ogg->streams,
+ ogg->nstreams * sizeof (*ogg->streams));
+
+ if (ogg->streams) {
+ memcpy(ogg->streams, ost->streams,
+ ost->nstreams * sizeof(*ogg->streams));
+ } else {
+ av_free(old_streams);
+ ogg->nstreams = 0;
+ }
}
av_free (ost);
{ CODEC_ID_MPEG2VIDEO, MKTAG('s', 'l', 'i', 'f') },
{ CODEC_ID_MPEG2VIDEO, MKTAG('E', 'M', '2', 'V') },
{ CODEC_ID_MPEG2VIDEO, MKTAG('M', '7', '0', '1') }, /* Matrox MPEG2 intra-only */
+ { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', 'v') },
{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
{ CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
{ CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') },
for(i = 0; i < 7; i++) {
if(flags & 1) {
int size;
+ uint8_t *tmpbuf;
+
size = avio_rl32(s->pb) - 4;
frame_size -= size;
frame_size -= 4;
smk->curstream++;
- smk->bufs[smk->curstream] = av_realloc(smk->bufs[smk->curstream], size);
+ tmpbuf = av_realloc(smk->bufs[smk->curstream], size);
+ if (!tmpbuf)
+ return AVERROR(ENOMEM);
+ smk->bufs[smk->curstream] = tmpbuf;
smk->buf_sizes[smk->curstream] = size;
ret = avio_read(s->pb, smk->bufs[smk->curstream], size);
if(ret != size)
}
flags >>= 1;
}
- if (av_new_packet(pkt, frame_size + 768))
+ if (frame_size < 0)
+ return AVERROR_INVALIDDATA;
+ if (av_new_packet(pkt, frame_size + 769))
return AVERROR(ENOMEM);
if(smk->frm_size[smk->cur_frame] & 1)
palchange |= 2;
else
ic->pb = pb;
- err = avformat_open_input(&ic, filename, fmt, &opts);
+ if ((err = avformat_open_input(&ic, filename, fmt, &opts)) < 0)
+ goto fail;
ic->pb = ic->pb ? ic->pb : pb; // don't leak custom pb if it wasn't set above
- *ic_ptr = ic;
fail:
+ *ic_ptr = ic;
av_dict_free(&opts);
return err;
}
(st->codec_info_nb_frames-2)*(int64_t)st->time_base.den,
st->info->codec_info_duration*(int64_t)st->time_base.num, 60000);
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
- if(st->codec->codec_id == CODEC_ID_RAWVIDEO && !st->codec->codec_tag && !st->codec->bits_per_coded_sample)
- st->codec->codec_tag= avcodec_pix_fmt_to_codec_tag(st->codec->pix_fmt);
-
// the check for tb_unreliable() is not completely correct, since this is not about handling
// a unreliable/inexact time base, but a time base that is finer than necessary, as e.g.
// ipmovie.c produces.
--- /dev/null
+/*
+ * Version macros.
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_VERSION_H
+#define AVFORMAT_VERSION_H
+
+#include "libavutil/avutil.h"
+
+#define LIBAVFORMAT_VERSION_MAJOR 53
+#define LIBAVFORMAT_VERSION_MINOR 2
+#define LIBAVFORMAT_VERSION_MICRO 0
+
+#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
+ LIBAVFORMAT_VERSION_MINOR, \
+ LIBAVFORMAT_VERSION_MICRO)
+#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \
+ LIBAVFORMAT_VERSION_MINOR, \
+ LIBAVFORMAT_VERSION_MICRO)
+#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
+
+#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
+
+/**
+ * Those FF_API_* defines are not part of public API.
+ * They may change, break or disappear at any time.
+ */
+#ifndef FF_API_OLD_METADATA2
+#define FF_API_OLD_METADATA2 (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_READ_SEEK
+#define FF_API_READ_SEEK (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_OLD_AVIO
+#define FF_API_OLD_AVIO (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_DUMP_FORMAT
+#define FF_API_DUMP_FORMAT (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_PARSE_DATE
+#define FF_API_PARSE_DATE (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_FIND_INFO_TAG
+#define FF_API_FIND_INFO_TAG (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_PKT_DUMP
+#define FF_API_PKT_DUMP (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_GUESS_IMG2_CODEC
+#define FF_API_GUESS_IMG2_CODEC (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_SDP_CREATE
+#define FF_API_SDP_CREATE (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_FORMAT_PARAMETERS
+#define FF_API_FORMAT_PARAMETERS (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_FLAG_RTP_HINT
+#define FF_API_FLAG_RTP_HINT (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+
+#endif /* AVFORMAT_VERSION_H */
if ((ret = parse_expr(&e, &p)) < 0)
goto end;
if (*p.s) {
+ av_expr_free(e);
av_log(&p, AV_LOG_ERROR, "Invalid chars '%s' at the end of expression '%s'\n", p.s, s0);
ret = AVERROR(EINVAL);
goto end;
--- /dev/null
+LIBAVUTIL_$MAJOR {
+ global: av_*; ff_*; avutil_*;
+ local: *;
+};
* when 0 then no av_free() nor av_strdup() will be used
* @return 0 if the value has been set, or an AVERROR code in case of
* error:
- * AVERROR(ENOENT) if no matching option exists
+ * AVERROR_OPTION_NOT_FOUND if no matching option exists
* AVERROR(ERANGE) if the value is out of range
* AVERROR(EINVAL) if the value is not valid
*/
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
- {0,1,1,0,9}, /* Y */
- {1,1,1,0,9}, /* U */
- {2,1,1,0,9}, /* V */
+ {0,1,1,0,8}, /* Y */
+ {1,1,1,0,8}, /* U */
+ {2,1,1,0,8}, /* V */
},
.flags = PIX_FMT_BE,
},
if(max_ext_level >= 0x80000001){
cpuid(0x80000001, eax, ebx, ecx, ext_caps);
- if (ext_caps & (1<<31))
+ if (ext_caps & (1U<<31))
rval |= AV_CPU_FLAG_3DNOW;
if (ext_caps & (1<<30))
rval |= AV_CPU_FLAG_3DNOWEXT;
--- /dev/null
+LIBPOSTPROC_$MAJOR {
+ global: postproc_*; pp_*;
+ local: *;
+};
ppMode->maxClippedThreshold= 0.01;
ppMode->error=0;
- av_strlcpy(temp, name, GET_MODE_BUFFER_SIZE);
+ memset(temp, 0, GET_MODE_BUFFER_SIZE);
+ av_strlcpy(temp, name, GET_MODE_BUFFER_SIZE - 1);
av_log(NULL, AV_LOG_DEBUG, "pp: %s\n", name);
plen= strlen(p);
spaceLeft= p - temp + plen;
- if(spaceLeft + newlen >= GET_MODE_BUFFER_SIZE){
+ if(spaceLeft + newlen >= GET_MODE_BUFFER_SIZE - 1){
ppMode->error++;
break;
}
--- /dev/null
+LIBSWSCALE_$MAJOR {
+ global: swscale_*; sws_*; ff_*;
+ local: *;
+};
register int i;
vector unsigned int altivec_vectorShiftInt19 =
vec_add(vec_splat_u32(10), vec_splat_u32(9));
- if ((unsigned int)dest % 16) {
+ if ((uintptr_t)dest % 16) {
/* badly aligned store, we force store alignment */
/* and will handle load misalignment on val w/ vec_perm */
vector unsigned char perm1;
vector signed int v1;
for (i = 0 ; (i < dstW) &&
- (((unsigned int)dest + i) % 16) ; i++) {
+ (((uintptr_t)dest + i) % 16) ; i++) {
int t = val[i] >> 19;
dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t);
}
vector unsigned char src_v1, src_vF;
vector signed short src_v, filter_v;
vector signed int val_vEven, val_s;
- if ((((int)src + srcPos)% 16) > 12) {
+ if ((((uintptr_t)src + srcPos) % 16) > 12) {
src_v1 = vec_ld(srcPos + 16, src);
}
src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src));
vector unsigned char src_v1, src_vF;
vector signed short src_v, filter_v;
vector signed int val_v, val_s;
- if ((((int)src + srcPos)% 16) > 8) {
+ if ((((uintptr_t)src + srcPos) % 16) > 8) {
src_v1 = vec_ld(srcPos + 16, src);
}
src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src));
//vector unsigned char src_v0 = vec_ld(srcPos + j, src);
vector unsigned char src_v1, src_vF;
vector signed short src_v, filter_v1R, filter_v;
- if ((((int)src + srcPos)% 16) > 8) {
+ if ((((uintptr_t)src + srcPos) % 16) > 8) {
src_v1 = vec_ld(srcPos + j + 16, src);
}
src_vF = vec_perm(src_v0, src_v1, permS);
enum PixelFormat srcFormat = c->srcFormat,
dstFormat = c->dstFormat;
- if (!is16BPS(dstFormat) && !is9_OR_10BPS(dstFormat)) {
+ if (!is16BPS(dstFormat) && !is9_OR_10BPS(dstFormat) &&
+ dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21) {
if (!(c->flags & SWS_BITEXACT)) {
if (c->flags & SWS_ACCURATE_RND) {
c->yuv2yuv1 = RENAME(yuv2yuv1_ar );
fate-id-cin-video: CMD = framecrc -i $(SAMPLES)/idcin/idlog-2MB.cin -pix_fmt rgb24
FATE_TESTS += fate-idroq-video-dpcm
fate-idroq-video-dpcm: CMD = framecrc -i $(SAMPLES)/idroq/idlogo.roq
-FATE_TESTS += fate-idroq-video-encode
+FATE_TESTS-$(CONFIG_AVFILTER) += fate-idroq-video-encode
fate-idroq-video-encode: CMD = md5 -t 0.2 -f image2 -vcodec pgmyuv -i $(SAMPLES)/ffmpeg-synthetic/vsynth1/%02d.pgm -sws_flags +bitexact -vf pad=512:512:80:112 -f RoQ
FATE_TESTS += fate-iff-byterun1
fate-iff-byterun1: CMD = framecrc -i $(SAMPLES)/iff/ASH.LBM -pix_fmt rgb24
if [ -n "$do_mxf" ] ; then
do_lavf mxf "-ar 48000 -bf 2 -timecode_frame_start 264363"
+fi
+
+if [ -n "$do_mxf_d10" ]; then
do_lavf mxf_d10 "-ar 48000 -ac 2 -r 25 -s 720x576 -vf pad=720:608:0:32 -vcodec mpeg2video -intra -flags +ildct+low_delay -dc 10 -flags2 +ivlc+non_linear_q -qscale 1 -ps 1 -qmin 1 -rc_max_vbv_use 1 -rc_min_vbv_use 1 -pix_fmt yuv422p -minrate 30000k -maxrate 30000k -b 30000k -bufsize 1200000 -top 1 -rc_init_occupancy 1200000 -qmax 12 -f mxf_d10"
fi
-c68f649777ab8e7c9a0f1f221451d3ad *./tests/data/acodec/alac.m4a
+b25bcc7ec3f5c19cdfc01a6bbd32edb8 *./tests/data/acodec/alac.m4a
389386 ./tests/data/acodec/alac.m4a
95e54b261530a1bcf6de6fe3b21dc5f6 *./tests/data/alac.acodec.out.wav
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 1058400/ 1058400
529256 ./tests/data/acodec/pcm_mulaw.wav
1c3eeaa8814ebd4916780dff80ed6dc5 *./tests/data/pcm.acodec.out.wav
stddev: 103.38 PSNR: 56.04 MAXDIFF: 644 bytes: 1058400/ 1058400
-b7936d7170e0efefb379349d81aed360 *./tests/data/acodec/pcm_s8.mov
+760f85fb9f4e8aba326fb44ae84c9507 *./tests/data/acodec/pcm_s8.mov
530837 ./tests/data/acodec/pcm_s8.mov
652edf30f35ad89bf27bcc9d2f9c7b53 *./tests/data/pcm.acodec.out.wav
stddev: 147.89 PSNR: 52.93 MAXDIFF: 255 bytes: 1058400/ 1058400
529244 ./tests/data/acodec/pcm_u8.wav
652edf30f35ad89bf27bcc9d2f9c7b53 *./tests/data/pcm.acodec.out.wav
stddev: 147.89 PSNR: 52.93 MAXDIFF: 255 bytes: 1058400/ 1058400
-c42b9c04305455250366c84e17c1023f *./tests/data/acodec/pcm_s16be.mov
+a4e18d1ca9ef5b8132a84d43625ddc47 *./tests/data/acodec/pcm_s16be.mov
1060037 ./tests/data/acodec/pcm_s16be.mov
95e54b261530a1bcf6de6fe3b21dc5f6 *./tests/data/pcm.acodec.out.wav
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 1058400/ 1058400
1060638 ./tests/data/acodec/pcm_s16le.mkv
95e54b261530a1bcf6de6fe3b21dc5f6 *./tests/data/pcm.acodec.out.wav
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 1058400/ 1058400
-07ffe7ffb78f3648b6524debdde5aec1 *./tests/data/acodec/pcm_s24be.mov
+971d2d2633e41a0326fe2d04a2d0350f *./tests/data/acodec/pcm_s24be.mov
1589237 ./tests/data/acodec/pcm_s24be.mov
95e54b261530a1bcf6de6fe3b21dc5f6 *./tests/data/pcm.acodec.out.wav
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 1058400/ 1058400
1587668 ./tests/data/acodec/pcm_s24le.wav
95e54b261530a1bcf6de6fe3b21dc5f6 *./tests/data/pcm.acodec.out.wav
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 1058400/ 1058400
-d7792f0343cd66fda8b50b569e2bcc48 *./tests/data/acodec/pcm_s32be.mov
+fc4f4e3e195bbde037ed31021d229f12 *./tests/data/acodec/pcm_s32be.mov
2118437 ./tests/data/acodec/pcm_s32be.mov
95e54b261530a1bcf6de6fe3b21dc5f6 *./tests/data/pcm.acodec.out.wav
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 1058400/ 1058400
0, 0, 192000, 0x8926d7fc
-1, 0, 47240, 0xad778a78
+1, 0, 47240, 0x9974897c
0, 6390, 192000, 0x2506d384
0, 12780, 192000, 0x9a8dc93a
0, 19170, 192000, 0x4badb7f2
0, 83070, 192000, 0x1a3d7971
0, 89460, 192000, 0xa1a65bd5
0, 95850, 192000, 0x344957b9
-1, 96408, 3128, 0x4c1564ae
+1, 96408, 3128, 0x7e4064b4
0, 102240, 192000, 0xe23b5f4e
-1, 102792, 3128, 0x34553309
+1, 102792, 3128, 0x80883301
0, 108630, 192000, 0xb5c2710b
-1, 109176, 3136, 0xb474d246
+1, 109176, 3136, 0x2ad2d341
0, 115020, 192000, 0x7a25938f
-1, 115576, 3128, 0x87b868ea
+1, 115576, 3128, 0xda8468e3
0, 121410, 192000, 0x0a84e4c9
-1, 121959, 3136, 0xf1516dc3
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0, 127800, 192000, 0x94209b0d
-1, 128359, 3128, 0x867563cb
+1, 128359, 3128, 0x1aaa64b5
0, 134190, 192000, 0xf940e51f
-1, 134743, 3128, 0x5200728c
+1, 134743, 3128, 0x9182728b
0, 140580, 192000, 0xb9fdec42
-1, 141127, 3136, 0xeda118a0
+1, 141127, 3136, 0xfa8e17b3
0, 146970, 192000, 0x7b04a376
-1, 147527, 3128, 0x03e2c1d6
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0, 153360, 192000, 0x5fe0026b
-1, 153910, 3136, 0xc3e862b6
+1, 153910, 3136, 0x0109639d
0, 159750, 192000, 0x775aca39
-1, 160310, 3128, 0x937a13be
+1, 160310, 3128, 0x6d8a12d9
0, 166140, 192000, 0xae14fb32
-1, 166694, 3128, 0x7b1b9577
+1, 166694, 3128, 0x4b9a9597
0, 172530, 192000, 0x661106e5
-1, 173078, 3136, 0x042c7113
+1, 173078, 3136, 0x9112710e
0, 178920, 192000, 0xe8658dbf
-1, 179478, 3128, 0xac48f451
+1, 179478, 3128, 0x8cccf522
0, 185310, 192000, 0x5359f0f9
-1, 185861, 3128, 0x018fbbe9
+1, 185861, 3128, 0x6594bbf3
0, 191700, 192000, 0xc1ec80f4
-1, 192245, 3136, 0xc62aa7ce
+1, 192245, 3136, 0xd878a7d5
0, 198090, 192000, 0xca53806b
-1, 198645, 3128, 0x106e3924
+1, 198645, 3128, 0xaa6e3905
0, 204480, 192000, 0xf0766b2e
-1, 205029, 3136, 0xfeb82ecc
+1, 205029, 3136, 0x2a062e04
0, 210870, 192000, 0x39962da8
-1, 211429, 3128, 0x7e7c005b
+1, 211429, 3128, 0x84e4006a
0, 217260, 192000, 0x4171c37f
-1, 217812, 3128, 0x949d3560
+1, 217812, 3128, 0x85183633
0, 223650, 192000, 0x3abf3b46
-1, 224196, 3136, 0x02bd4aff
+1, 224196, 3136, 0xb62d4b02
0, 230040, 192000, 0xecc68313
-1, 230596, 3128, 0x4aaf4715
+1, 230596, 3128, 0xe209462a
0, 236430, 192000, 0xea339baf
-1, 236980, 3136, 0x2958825f
+1, 236980, 3136, 0x57c4824b
0, 242820, 192000, 0x616b8f16
-1, 243380, 3128, 0x99a5914d
+1, 243380, 3128, 0x664a9163
0, 249210, 192000, 0xf77a8581
-1, 249763, 3128, 0xe67277a4
+1, 249763, 3128, 0xb4287874
0, 255600, 192000, 0xb315678b
-1, 256147, 3136, 0x11296973
+1, 256147, 3136, 0xde626885
0, 261990, 192000, 0x0a4a5218
-1, 262547, 3128, 0x5cc362f7
+1, 262547, 3128, 0x919763c2
0, 268380, 192000, 0x98802be4
-1, 268931, 3128, 0x0c5e6586
+1, 268931, 3128, 0xa4f664e1
0, 274770, 192000, 0xa2f0fd94
-1, 275314, 3136, 0xe940b0f9
+1, 275314, 3136, 0xa0bab0d4
0, 281160, 192000, 0x6671c84f
-1, 281714, 3128, 0x2c9292cc
+1, 281714, 3128, 0xe938939c
0, 287550, 192000, 0x38327e31
-1, 288098, 3136, 0xa807c096
+1, 288098, 3136, 0x3679bfc7
0, 293940, 192000, 0xb85d3e08
-1, 294498, 3128, 0x9d2254d8
+1, 294498, 3128, 0xc96c55c3
0, 300330, 192000, 0xdc69eba9
-1, 300882, 3128, 0xe68015b0
+1, 300882, 3128, 0x119114d6
0, 306720, 192000, 0x8955a0b3
-1, 307265, 3136, 0x65d58029
+1, 307265, 3136, 0x42f3800f
0, 313110, 192000, 0x714a548b
-1, 313665, 3128, 0xcffcc48c
+1, 313665, 3128, 0x4250c4ad
0, 319500, 192000, 0xc0471de9
-1, 320049, 3136, 0x8c704944
+1, 320049, 3136, 0x5cdd4925
0, 325890, 192000, 0x2e16e039
-1, 326449, 3128, 0x1459231d
+1, 326449, 3128, 0xa4c12360
0, 332280, 192000, 0x9fa4b033
-1, 332833, 3128, 0x7dde4839
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0, 338670, 192000, 0x4a0f9402
-1, 339216, 3136, 0xbb6890e2
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0, 345060, 192000, 0x1f3e6843
-1, 345616, 3128, 0xcd9a8524
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0, 351450, 192000, 0x31774850
-1, 352000, 3128, 0xa244fc31
+1, 352000, 3128, 0x10f2fcb1
0, 357840, 192000, 0x9d5336a2
-1, 358384, 3136, 0x504e2bd9
+1, 358384, 3136, 0xf0f02b23
0, 364230, 192000, 0xf7de27a2
-1, 364784, 3128, 0x655858d8
+1, 364784, 3128, 0x64f759c6
0, 370620, 192000, 0x98c717ce
-1, 371167, 3136, 0x46027610
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0, 377010, 192000, 0x615b10b8
-1, 377567, 3128, 0x4192d5e3
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0, 383400, 192000, 0xd5bc0e7e
-1, 383951, 3128, 0x21d2e7fe
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0, 389790, 192000, 0xd5bc0e7e
-1, 390335, 3136, 0x7c93e329
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0, 396180, 192000, 0xd5bc0e7e
-1, 396735, 3128, 0xa67718c0
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0, 402570, 192000, 0xd5bc0e7e
-1, 403118, 3136, 0x9bb6e8a3
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0, 408960, 192000, 0xd5bc0e7e
-1, 409518, 3128, 0x0933b7a6
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0, 415350, 192000, 0xd5bc0e7e
-1, 415902, 3128, 0x07f1fb57
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0, 421740, 192000, 0xd5bc0e7e
-1, 422286, 3136, 0x8a050cfd
+1, 422286, 3136, 0xe0560c41
0, 428130, 192000, 0xd5bc0e7e
-1, 428686, 3128, 0xdb773c0b
+1, 428686, 3128, 0x14773c9a
0, 434520, 192000, 0xd5bc0e7e
-1, 435069, 3136, 0xd1281c53
+1, 435069, 3136, 0x850f1c82
0, 440910, 192000, 0xd5bc0e7e
-1, 441469, 3128, 0x9f395324
+1, 441469, 3128, 0xb0bd5347
0, 447300, 192000, 0xd5bc0e7e
-1, 447853, 3128, 0x5f13edec
+1, 447853, 3128, 0x8f82edbf
0, 453690, 192000, 0xd5bc0e7e
-1, 454237, 3136, 0x871cbecf
+1, 454237, 3136, 0x493abee2
0, 460080, 192000, 0xd5bc0e7e
-1, 460637, 3128, 0x799eff3e
+1, 460637, 3128, 0xf5daff3f
0, 466470, 192000, 0xd5bc0e7e
-1, 467020, 3128, 0x3f902762
+1, 467020, 3128, 0x78ad2690
0, 472860, 192000, 0xd5bc0e7e
-1, 473404, 3136, 0x29f8bb04
+1, 473404, 3136, 0x490ebafc
0, 479250, 192000, 0xd5bc0e7e
-1, 479804, 3128, 0xf3523ee9
+1, 479804, 3128, 0x70333fd2
0, 485640, 192000, 0xd5bc0e7e
-1, 486188, 3136, 0x4405c435
+1, 486188, 3136, 0x8cb1c350
0, 492030, 192000, 0xd5bc0e7e
-1, 492588, 3128, 0x892957cb
+1, 492588, 3128, 0x8bd057cb
0, 498420, 192000, 0xd5bc0e7e
-1, 498971, 3128, 0xdf483dbd
+1, 498971, 3128, 0x161b3dbc
0, 504810, 192000, 0xd5bc0e7e
-1, 505355, 3136, 0x5e8ab797
+1, 505355, 3136, 0xb47fb88a
0, 511200, 192000, 0xd5bc0e7e
-1, 511755, 3128, 0x92e13820
+1, 511755, 3128, 0x474b381e
0, 517590, 192000, 0xd5bc0e7e
-1, 518139, 3136, 0xfde719b6
+1, 518139, 3136, 0x07c519bb
0, 523980, 192000, 0xd5bc0e7e
-1, 524539, 3128, 0x442f17ae
+1, 524539, 3128, 0x15b916c8
0, 530370, 192000, 0xd5bc0e7e
-1, 530922, 3128, 0x011af61f
+1, 530922, 3128, 0x0ed7f6fb
0, 536760, 192000, 0xd5bc0e7e
-1, 537306, 3136, 0x4e3e3a6d
+1, 537306, 3136, 0x54d6397b
0, 543150, 192000, 0xd5bc0e7e
-1, 543706, 3128, 0xc11242b9
+1, 543706, 3128, 0x437242bb
0, 549540, 192000, 0xd5bc0e7e
-1, 550090, 3128, 0x01415b59
+1, 550090, 3128, 0x38f05c4d
0, 555930, 192000, 0xd5bc0e7e
-1, 556473, 3136, 0x302e0e55
+1, 556473, 3136, 0x5d000e59
0, 562320, 192000, 0xd5bc0e7e
-1, 562873, 3128, 0x20522d04
+1, 562873, 3128, 0xdeab2d04
0, 568710, 192000, 0xd5bc0e7e
-1, 569257, 3136, 0x316a697d
+1, 569257, 3136, 0x77de6880
0, 575100, 192000, 0xd5bc0e7e
-1, 575657, 3128, 0x6d75ee27
+1, 575657, 3128, 0xbc87ef25
0, 581490, 192000, 0xd5bc0e7e
-1, 582041, 3128, 0xcb008ae8
+1, 582041, 3128, 0xc1638ade
0, 587880, 192000, 0xd5bc0e7e
-1, 588424, 3136, 0xd2664b51
+1, 588424, 3136, 0xcfb64a5f
0, 594270, 192000, 0xd5bc0e7e
-1, 594824, 3128, 0xdfcab728
+1, 594824, 3128, 0x90b1b826
0, 600660, 192000, 0xd5bc0e7e
1, 601208, 3136, 0x00000000
0, 607050, 192000, 0xd5bc0e7e
-439684b82ccc1fdd24a23392c238ae53 *./tests/data/lavf/lavf.mov
+4a3ad13f0355cb5d119109778d555207 *./tests/data/lavf/lavf.mov
357681 ./tests/data/lavf/lavf.mov
./tests/data/lavf/lavf.mov CRC=0x2f6a9b26
6e9bd63c5cadd7550ad313553ebf665f *./tests/data/lavf/lavf.mxf
525881 ./tests/data/lavf/lavf.mxf
./tests/data/lavf/lavf.mxf CRC=0x4ace0849
-e7168856f2b54c6272685967e707fb21 *./tests/data/lavf/lavf.mxf_d10
-5330989 ./tests/data/lavf/lavf.mxf_d10
-./tests/data/lavf/lavf.mxf_d10 CRC=0xc3f4f92e
--- /dev/null
+e7168856f2b54c6272685967e707fb21 *./tests/data/lavf/lavf.mxf_d10
+5330989 ./tests/data/lavf/lavf.mxf_d10
+./tests/data/lavf/lavf.mxf_d10 CRC=0xc3f4f92e
#!/bin/sh
TARGET_OS=`uname -s`
+BUILD_OS=`uname -p`
+BIN_DIR="i386"
+
+if test "$BUILD_OS" = "x86_64"
+then
+ BIN_DIR="x86_64"
+fi
case $TARGET_OS in
Linux*)
-./configure --prefix=./ --arch=x86 --enable-static --enable-pic --enable-optimizations --disable-doc --disable-gpl --disable-postproc --disable-swscale --disable-ffmpeg --disable-ffprobe --disable-ffserver --disable-ffplay --disable-decoders --disable-encoders --disable-muxers --disable-demuxers --disable-parsers --disable-protocols --disable-network --disable-bsfs --disable-devices --disable-filters --enable-encoder=h263 --enable-encoder=h263p --enable-encoder=mpeg4 --enable-encoder=msmpeg4v2 --enable-encoder=msmpeg4v3 --enable-decoder=aac --enable-decoder=h263 --enable-decoder=h264 --enable-decoder=mp3 --enable-decoder=mp3adu --enable-decoder=mpeg4 --enable-decoder=mpegvideo --enable-decoder=msmpeg4v1 --enable-decoder=msmpeg4v2 --enable-decoder=msmpeg4v3 --enable-decoder=wmav1 --enable-decoder=wmav2 --enable-decoder=vc1
+./configure --prefix=./$BIN_DIR --arch=x86 --enable-static --enable-pic --enable-optimizations --disable-doc --disable-gpl --disable-yasm --disable-postproc --disable-swscale --disable-ffmpeg --disable-ffprobe --disable-ffserver --disable-ffplay --disable-decoders --disable-encoders --disable-muxers --disable-demuxers --disable-parsers --disable-protocols --disable-network --disable-bsfs --disable-devices --disable-filters --enable-encoder=h263 --enable-encoder=h263p --enable-encoder=mpeg4 --enable-encoder=msmpeg4v2 --enable-encoder=msmpeg4v3 --enable-decoder=aac --enable-decoder=h263 --enable-decoder=h264 --enable-decoder=mp3 --enable-decoder=mp3adu --enable-decoder=mpeg4 --enable-decoder=mpegvideo --enable-decoder=msmpeg4v1 --enable-decoder=msmpeg4v2 --enable-decoder=msmpeg4v3 --enable-decoder=wmav1 --enable-decoder=wmav2 --enable-decoder=wmv3 --enable-decoder=vc1
;;
MINGW*)
-./configure --prefix=./ --arch=x86 --enable-shared --disable-static --enable-optimizations --enable-memalign-hack --disable-yasm --disable-doc --disable-gpl --disable-postproc --disable-swscale --disable-ffmpeg --disable-ffprobe --disable-ffserver --disable-ffplay --disable-decoders --disable-encoders --disable-muxers --disable-demuxers --disable-parsers --disable-protocols --disable-network --disable-bsfs --disable-devices --disable-filters --enable-encoder=h263 --enable-encoder=h263p --enable-encoder=mpeg4 --enable-encoder=msmpeg4v2 --enable-encoder=msmpeg4v3 --enable-decoder=aac --enable-decoder=h263 --enable-decoder=h264 --enable-decoder=mp3 --enable-decoder=mp3adu --enable-decoder=mpeg4 --enable-decoder=mpegvideo --enable-decoder=msmpeg4v1 --enable-decoder=msmpeg4v2 --enable-decoder=msmpeg4v3 --enable-decoder=wmav1 --enable-decoder=wmav2 --enable-decoder=vc1
+./configure --prefix=./$BIN_DIR --arch=x86 --enable-shared --disable-static --enable-optimizations --enable-memalign-hack --disable-doc --disable-gpl --disable-yasm --disable-postproc --disable-swscale --disable-ffmpeg --disable-ffprobe --disable-ffserver --disable-ffplay --disable-decoders --disable-encoders --disable-muxers --disable-demuxers --disable-parsers --disable-protocols --disable-network --disable-bsfs --disable-devices --disable-filters --enable-encoder=h263 --enable-encoder=h263p --enable-encoder=mpeg4 --enable-encoder=msmpeg4v2 --enable-encoder=msmpeg4v3 --enable-decoder=aac --enable-decoder=h263 --enable-decoder=h264 --enable-decoder=mp3 --enable-decoder=mp3adu --enable-decoder=mpeg4 --enable-decoder=mpegvideo --enable-decoder=msmpeg4v1 --enable-decoder=msmpeg4v2 --enable-decoder=msmpeg4v3 --enable-decoder=wmav1 --enable-decoder=wmav2 --enable-decoder=wmv3 --enable-decoder=vc1
;;
esac
--enable-ldst-optimization \
--enable-hax \
--enable-maru \
- --enable-gl
+ --enable-gl $1
# --enable-ffmpeg
# --disable-vnc-jpeg \
# --disable-jpeg
$(call set-vpath, $(SRC_PATH):$(TARGET_PATH):$(SRC_PATH)/hw:$(SRC_PATH)/tizen/src:$(SRC_PATH)/tizen/src/hw:$(SRC_PATH)/tizen/src/skin)
QEMU_CFLAGS += -I$(SRC_PATH)/hw -I$(SRC_PATH)/tizen/src
-#QEMU_CFLAGS += -I$(SRC_PATH)/tizen/distrib/ffmpeg/include
-#QEMU_CFLAGS += -L$(SRC_PATH)/tizen/distrib/ffmpeg/lib
-QEMU_CFLAGS += -I$(SRC_PATH)/tizen/distrib/libav/include
-QEMU_CFLAGS += -L$(SRC_PATH)/tizen/distrib/libav/lib
+QEMU_CFLAGS += -I$(SRC_PATH)/tizen/distrib/libav/$(ARCH)/include
+QEMU_CFLAGS += -L$(SRC_PATH)/tizen/distrib/libav/$(ARCH)/lib
QEMU_CFLAGS += $(SDL_CFLAGS)
QEMU_CFLAGS += $(GLIB_CFLAGS)
CFLAGS += -g -O2
#include <linux/version.h>
#include <sys/utsname.h>
#include <sys/sysinfo.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
#endif
#include "mloop_event.h"
SDL_Quit();
}
+static int check_port_bind_listen(u_int port)
+{
+ struct sockaddr_in addr;
+ int s, opt = 1;
+ int ret = -1;
+ socklen_t addrlen = sizeof(addr);
+ memset(&addr, 0, addrlen);
+
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = INADDR_ANY;
+ addr.sin_port = htons(port);
+
+ if (((s = socket(AF_INET,SOCK_STREAM,0)) < 0) ||
+ (setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int)) < 0) ||
+ (bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) ||
+ (listen(s,1) < 0)) {
+
+ /* fail */
+ ret = -1;
+ ERR( "check port(%d) bind listen fail \n", port);
+ }else{
+ /*fsucess*/
+ ret = 1;
+ INFO( "check port(%d) bind listen ok \n", port);
+ }
+
+#ifdef _WIN32
+ closesocket(s);
+#else
+ close(s);
+#endif
+
+ return ret;
+}
+
+
+void check_shdmem(void)
+{
+#ifndef _WIN32
+ int shm_id;
+ void *shm_addr;
+ u_int port;
+ int val;
+ struct shmid_ds shm_info;
+
+ for(port=26100;port < 26200; port += 10)
+ {
+ if ( -1 != ( shm_id = shmget( (key_t)port, 0, 0)))
+ {
+ if((void *)-1 == (shm_addr = shmat(shm_id, (void *)0, 0)))
+ {
+ ERR( "error occured at shmat()\n");
+ break;
+ }
+
+ val = shmctl(shm_id, IPC_STAT, &shm_info);
+ if(val != -1)
+ {
+ INFO( "count of process that use shared memory : %d\n", shm_info.shm_nattch);
+ if(shm_info.shm_nattch > 0 && strcmp(tizen_target_path, (char*)shm_addr) == 0)
+ {
+ if(check_port_bind_listen(port+1) > 0){
+ shmdt(shm_addr);
+ continue;
+ }
+ shmdt(shm_addr);
+ maru_register_exit_msg(MARU_EXIT_UNKNOWN, (char*)"Can not execute this VM.\nThe same name is running now.");
+ exit(0);
+ }
+ else{
+ shmdt(shm_addr);
+ }
+ }
+ }
+ }
+
+#else /* _WIN32*/
+ u_int port;
+ char* base_port = NULL;
+ char* pBuf;
+ HANDLE hMapFile;
+ for(port=26100;port < 26200; port += 10)
+ {
+ base_port = g_strdup_printf("%d", port);
+ hMapFile = OpenFileMapping(
+ FILE_MAP_READ,
+ TRUE,
+ base_port);
+ if(hMapFile == NULL)
+ {
+ INFO("port %s is not used.\n", base_port);
+ continue;
+ }
+ else
+ {
+ pBuf = (char*)MapViewOfFile(hMapFile,
+ FILE_MAP_READ,
+ 0,
+ 0,
+ 50);
+ if (pBuf == NULL)
+ {
+ ERR("Could not map view of file (%d).\n", GetLastError());
+ CloseHandle(hMapFile);
+ return -1;
+ }
+
+ if(strcmp(pBuf, tizen_target_path) == 0)
+ {
+ if(check_port_bind_listen(port+1) > 0)
+ {
+ UnmapViewOfFile(pBuf);
+ CloseHandle(hMapFile);
+ continue;
+ }
+
+ maru_register_exit_msg(MARU_EXIT_UNKNOWN, "Can not execute this VM.\nThe same name is running now.");
+ UnmapViewOfFile(pBuf);
+ CloseHandle(hMapFile);
+ free(base_port);
+ exit(0);
+ }
+ else
+ UnmapViewOfFile(pBuf);
+ }
+
+ CloseHandle(hMapFile);
+ free(base_port);
+ }
+#endif
+}
+
+void make_shdmem(void)
+{
+#ifndef _WIN32
+ int shmid;
+ char *shared_memory;
+ shmid = shmget((key_t)tizen_base_port, MAXLEN, 0666|IPC_CREAT);
+ if (shmid == -1)
+ {
+ ERR("shmget failed\n");
+ return;
+ }
+ shared_memory = shmat(shmid, (char*)0x00, 0);
+ if (shared_memory == (void *)-1)
+ {
+ ERR("shmat failed\n");
+ return;
+ }
+ sprintf(shared_memory, "%s", tizen_target_path);
+ INFO( "shared memory key: %d value: %s\n", tizen_base_port, (char*)shared_memory);
+#else
+ HANDLE hMapFile;
+ char* pBuf;
+ char* port_in_use;
+ char *shared_memory;
+ shared_memory = g_strdup_printf("%s", tizen_target_path);
+ port_in_use = g_strdup_printf("%d", tizen_base_port);
+ hMapFile = CreateFileMapping(
+ INVALID_HANDLE_VALUE, // use paging file
+ NULL, // default security
+ PAGE_READWRITE, // read/write access
+ 0, // maximum object size (high-order DWORD)
+ 50, // maximum object size (low-order DWORD)
+ port_in_use); // name of mapping object
+ if (hMapFile == NULL)
+ {
+ ERR("Could not create file mapping object (%d).\n", GetLastError());
+ return;
+ }
+ pBuf = MapViewOfFile(hMapFile, // handle to map object
+ FILE_MAP_ALL_ACCESS, // read/write permission
+ 0,
+ 0,
+ 50);
+
+ if (pBuf == NULL)
+ {
+ ERR("Could not map view of file (%d).\n", GetLastError());
+ CloseHandle(hMapFile);
+ return;
+ }
+
+ CopyMemory((PVOID)pBuf, shared_memory, strlen(shared_memory));
+ free(port_in_use);
+ free(shared_memory);
+#endif
+ return;
+}
+
+
+
static void construct_main_window(int skin_argc, char* skin_argv[], int qemu_argc, char* qemu_argv[] )
{
INFO("construct main window\n");
extract_info(qemu_argc, qemu_argv);
INFO("Emulator start !!!\n");
+
atexit(maru_atexit);
+
+ check_shdmem();
+ make_shdmem();
+
system_info();
INFO("Prepare running...\n");
void redir_output(void);
void extract_info(int qemu_argc, char** qemu_argv);
void prepare_maru(void);
-
+void check_shdmem(void);
+void make_shdmem(void);
#endif /* __EMULATOR_H__ */
#include <string.h>
#include <unistd.h>
#include <stdint.h>
+#include <assert.h>
+#include <glib.h>
#ifdef _WIN32
#include <windows.h>
}
+/* get_tizen_vms_sdcard_path = "/home/{USER}/tizen_vms/sdcard" */
+char* get_tizen_vms_sdcard_path(void)
+{
+ char tizen_vms[] = "/tizen_vms/sdcard/";
+#ifndef _WIN32
+ char *homedir = (char*)g_getenv("HOME");
+#else
+ char *homedir = (char*)g_getenv("USERPROFILE");
+#endif
+ char *tizen_vms_path;
+
+ if(!homedir)
+ homedir = (char*)g_get_home_dir();
+
+ tizen_vms_path = malloc(strlen(homedir) + sizeof tizen_vms + 1);
+ assert(tizen_vms_path != NULL);
+ strcpy(tizen_vms_path, homedir);
+ strcat(tizen_vms_path, tizen_vms);
+
+ return tizen_vms_path;
+}
+
static void* run_guest_server( void* args ) {
INFO( "start guest server thread.\n" );
TRACE( "command:%s\n", command );
notify_sdb_daemon_start();
notify_sensor_daemon_start();
- } else {
+ }
+ else if ( strcmp( command, "4\n" ) == 0 ) {
+ /* sdcard mount/umount msg recv from emuld */
+ INFO( "command:%s\n", command );
+ char token[] = "\n";
+ char* ret = NULL;
+ ret = strtok(readbuf, token);
+ INFO( "%s\n", ret);
+
+ ret = strtok(NULL, token);
+ INFO( "%s\n", ret);
+
+ /* umount sdcard */
+ if ( atoi(ret) == 0 ) {
+ mloop_evcmd_usbdisk( NULL );
+
+ } else if( atoi(ret) == 1 ) {
+ /* mount sdcard */
+ char sdcard_path[256];
+ char* vms_path = get_tizen_vms_sdcard_path();
+ memset(sdcard_path, '\0', sizeof(sdcard_path));
+
+ strcpy(sdcard_path, vms_path);
+
+ /* tizen_vms_sdcard_path + sdcard img name */
+ ret = strtok(NULL, token);
+ strcat(sdcard_path, ret);
+ INFO( "%s\n", sdcard_path);
+
+ mloop_evcmd_usbdisk(sdcard_path);
+ free(vms_path);
+ } else {
+ ERR( "!!! unknown command : %s\n", ret );
+ }
+ } else {
ERR( "!!! unknown command : %s\n", command );
}
TRACE( "========================================\n" );
#include "maru_codec.h"
#define MARU_CODEC_DEV_NAME "codec"
-#define MARU_CODEC_VERSION "1.0"
+#define MARU_CODEC_VERSION "1.1"
/* Needs 16M to support 1920x1080 video resolution.
* Output size for encoding has to be greater than (width * height * 6)
static int ctxArrIndex = 0;
// static uint8_t *gTempBuffer = NULL;
-static void qemu_parser_init (SVCodecState *s, int ctxIndex)
+void qemu_parser_init (SVCodecState *s, int ctxIndex)
{
TRACE("[%s] Enter\n", __func__);
TRACE("[%s] Leave\n", __func__);
}
-static void qemu_codec_close (SVCodecState *s, uint32_t value)
+void qemu_codec_close (SVCodecState *s, uint32_t value)
{
int i;
int ctxIndex = 0;
TRACE("[%s] Leave\n", __func__);
}
-static void qemu_restore_context (AVCodecContext *dst, AVCodecContext *src)
+void qemu_restore_context (AVCodecContext *dst, AVCodecContext *src)
{
TRACE("[%s] Enter\n", __func__);
TRACE("[%s] Leave\n", __func__);
}
-static void qemu_get_codec_ver (SVCodecState *s, int ctxIndex)
+void qemu_get_codec_ver (SVCodecState *s, int ctxIndex)
{
char codec_ver[32];
off_t offset;
}
/* void av_register_all() */
-static void qemu_av_register_all (void)
+void qemu_av_register_all (void)
{
av_register_all();
TRACE("av_register_all\n");
}
/* int avcodec_default_get_buffer (AVCodecContext *s, AVFrame *pic) */
-static int qemu_avcodec_get_buffer (AVCodecContext *context, AVFrame *picture)
+int qemu_avcodec_get_buffer (AVCodecContext *context, AVFrame *picture)
{
int ret;
TRACE("avcodec_default_get_buffer\n");
}
/* void avcodec_default_release_buffer (AVCodecContext *ctx, AVFrame *frame) */
-static void qemu_avcodec_release_buffer (AVCodecContext *context, AVFrame *picture)
+void qemu_avcodec_release_buffer (AVCodecContext *context, AVFrame *picture)
{
TRACE("avcodec_default_release_buffer\n");
avcodec_default_release_buffer(context, picture);
/* int avcodec_open (AVCodecContext *avctx, AVCodec *codec) */
#ifdef CODEC_HOST
-static int qemu_avcodec_open (SVCodecState *s, int ctxIndex)
+int qemu_avcodec_open (SVCodecState *s, int ctxIndex)
{
AVCodecContext *avctx;
AVCodecContext tmpCtx;
return ret;
}
#else
-static int qemu_avcodec_open (SVCodecState *s, int ctxIndex)
+int qemu_avcodec_open (SVCodecState *s, int ctxIndex)
{
AVCodecContext *avctx;
#ifndef CODEC_COPY_DATA
if (!codec) {
ERR("failed to find codec of %d\n", codec_id);
}
+
avctx->get_buffer = qemu_avcodec_get_buffer;
avctx->release_buffer = qemu_avcodec_release_buffer;
#endif
/* int avcodec_close (AVCodecContext *avctx) */
-static int qemu_avcodec_close (SVCodecState* s, int ctxIndex)
+int qemu_avcodec_close (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx;
off_t offset;
}
/* AVCodecContext* avcodec_alloc_context (void) */
-static void qemu_avcodec_alloc_context (SVCodecState* s)
+void qemu_avcodec_alloc_context (SVCodecState* s)
{
off_t offset;
int index;
}
/* AVFrame *avcodec_alloc_frame (void) */
-static void qemu_avcodec_alloc_frame (SVCodecState* s)
+void qemu_avcodec_alloc_frame (SVCodecState* s)
{
TRACE("[%s] Enter\n", __func__);
pthread_mutex_lock(&s->codec_mutex);
}
/* void av_free (void *ptr) */
-static void qemu_av_free_context (SVCodecState* s, int ctxIndex)
+void qemu_av_free_context (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx;
TRACE("free AVCodecContext\n");
}
-static void qemu_av_free_picture (SVCodecState* s, int ctxIndex)
+void qemu_av_free_picture (SVCodecState* s, int ctxIndex)
{
AVFrame *avframe;
TRACE("free AVFrame\n");
}
-static void qemu_av_free_palctrl (SVCodecState* s, int ctxIndex)
+void qemu_av_free_palctrl (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx;
TRACE("free AVCodecContext palctrl\n");
}
-static void qemu_av_free_extradata (SVCodecState* s, int ctxIndex)
+void qemu_av_free_extradata (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx;
}
/* void avcodec_flush_buffers (AVCodecContext *avctx) */
-static void qemu_avcodec_flush_buffers (SVCodecState* s, int ctxIndex)
+void qemu_avcodec_flush_buffers (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx;
* int buf_size)
*/
#ifdef CODEC_HOST
-static int qemu_avcodec_decode_video (SVCodecState* s, int ctxIndex)
+int qemu_avcodec_decode_video (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx;
AVFrame *picture;
return ret;
}
#else
-static int qemu_avcodec_decode_video (SVCodecState* s, int ctxIndex)
+int qemu_avcodec_decode_video (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx;
-// AVCodecContext tmpCtx;
+#ifndef CODEC_COPY_DATA
+ AVCodecContext tmpCtx;
+#endif
AVFrame *picture;
AVPacket avpkt;
int got_picture_ptr;
bParser = s->ctxArr[ctxIndex].bParser;
TRACE("[%s] Parser Buffer : %p, Parser:%d\n", __func__, pParserBuffer, bParser);
+#ifndef CODEC_COPY_DATA
+ memcpy(&tmpCtx, avctx, sizeof(AVCodecContext));
+ memcpy(avctx, (uint8_t*)s->vaddr + offset, sizeof(AVCodecContext));
+ size = sizeof(AVCodecContext);
+ qemu_restore_context(avctx, &tmpCtx);
+#else
memcpy(&avctx->reordered_opaque, (uint8_t*)s->vaddr + offset, sizeof(int64_t));
size = sizeof(int64_t);
memcpy(&avctx->skip_frame, (uint8_t*)s->vaddr + offset + size, sizeof(int));
size += sizeof(int);
-/* memcpy(&tmpCtx, avctx, sizeof(AVCodecContext));
- memcpy(avctx, (uint8_t*)s->vaddr + offset, sizeof(AVCodecContext));
- size = sizeof(AVCodecContext);
- qemu_restore_context(avctx, &tmpCtx); */
+#endif
memcpy(&buf_size, (uint8_t*)s->vaddr + offset + size, sizeof(int));
size += sizeof(int);
#endif
// memcpy((uint8_t*)s->vaddr + offset + size, picture, sizeof(AVFrame));
// size += sizeof(AVFrame);
+ memcpy((uint8_t*)s->vaddr + offset + size, &picture->key_frame, sizeof(int));
+ size += sizeof(int);
+ memcpy((uint8_t*)s->vaddr + offset + size, &picture->pict_type, sizeof(int));
+ size += sizeof(int);
memcpy((uint8_t*)s->vaddr + offset + size, &picture->pts, sizeof(int64_t));
size += sizeof(int64_t);
memcpy((uint8_t*)s->vaddr + offset + size, &picture->coded_picture_number, sizeof(int));
size += sizeof(int);
- memcpy((uint8_t*)s->vaddr + offset + size, &picture->reference, sizeof(int));
- size += sizeof(int);
memcpy((uint8_t*)s->vaddr + offset + size, &picture->display_picture_number, sizeof(int));
size += sizeof(int);
+ memcpy((uint8_t*)s->vaddr + offset + size, &picture->quality, sizeof(int));
+ size += sizeof(int);
+ memcpy((uint8_t*)s->vaddr + offset + size, &picture->age, sizeof(int));
+ size += sizeof(int);
+ memcpy((uint8_t*)s->vaddr + offset + size, &picture->reference, sizeof(int));
+ size += sizeof(int);
memcpy((uint8_t*)s->vaddr + offset + size, &picture->reordered_opaque, sizeof(int64_t));
size += sizeof(int64_t);
memcpy((uint8_t*)s->vaddr + offset + size, &picture->repeat_pict, sizeof(int));
* int buf_size, const AVFrame *pict)
*/
#ifdef CODEC_HOST
-static int qemu_avcodec_encode_video (SVCodecState* s, int ctxIndex)
+int qemu_avcodec_encode_video (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx;
uint8_t *outBuf, *inBuf;
return ret;
}
#else
-static int qemu_avcodec_encode_video (SVCodecState* s, int ctxIndex)
+int qemu_avcodec_encode_video (SVCodecState* s, int ctxIndex)
{
AVCodecContext *avctx = NULL;
AVFrame *pict = NULL;
* int avcodec_decode_audio3 (AVCodecContext *avctx, int16_t *samples,
* int *frame_size_ptr, AVPacket *avpkt)
*/
-static int qemu_avcodec_decode_audio (SVCodecState *s, int ctxIndex)
+int qemu_avcodec_decode_audio (SVCodecState *s, int ctxIndex)
{
AVCodecContext *avctx;
AVPacket avpkt;
return ret;
}
-static int qemu_avcodec_encode_audio (SVCodecState *s, int ctxIndex)
+int qemu_avcodec_encode_audio (SVCodecState *s, int ctxIndex)
{
WARN("[%s] Does not support audio encoder using FFmpeg\n", __func__);
return 0;
* enum PixelFormat pix_fmt, int width, int height)
*/
#ifdef CODEC_HOST
-static void qemu_av_picture_copy (SVCodecState* s, int ctxIndex)
+void qemu_av_picture_copy (SVCodecState* s, int ctxIndex)
{
AVCodecContext* avctx;
AVPicture dst;
TRACE("Leave :%s\n", __func__);
}
#else
-static void qemu_av_picture_copy (SVCodecState* s, int ctxIndex)
+void qemu_av_picture_copy (SVCodecState* s, int ctxIndex)
{
AVCodecContext* avctx;
AVPicture dst;
#endif
/* AVCodecParserContext *av_parser_init (int codec_id) */
-static void qemu_av_parser_init (SVCodecState* s, int ctxIndex)
+void qemu_av_parser_init (SVCodecState* s, int ctxIndex)
{
AVCodecParserContext *parserctx = NULL;
AVCodecContext *avctx;
* int64_t pts, int64_t dts)
*/
#ifdef CODEC_HOST
-static int qemu_av_parser_parse (SVCodecState* s, int ctxIndex)
+int qemu_av_parser_parse (SVCodecState* s, int ctxIndex)
{
AVCodecParserContext *parserctx = NULL;
AVCodecContext *avctx = NULL;
return ret;
}
#else
-static int qemu_av_parser_parse (SVCodecState *s, int ctxIndex)
+int qemu_av_parser_parse (SVCodecState *s, int ctxIndex)
{
AVCodecParserContext *parserctx = NULL;
+#ifndef CODEC_COPY_DATA
+ AVCodecParserContext tmpParser;
+#endif
AVCodecContext *avctx = NULL;
uint8_t *poutbuf;
int poutbuf_size = 0;
offset = s->codecParam.mmapOffset;
- memcpy(&pts, (uint8_t*)s->vaddr + offset, sizeof(int64_t));
+#ifndef CODEC_COPY_DATA
+ memcpy(&tmpParser, parserctx, sizeof(AVCodecParserContext));
+ memcpy(parserctx, (uint8_t*)s->vaddr + offset, sizeof(AVCodecParserContext));
+ size = sizeof(AVCodecParserContext);
+ parserctx->priv_data = tmpParser.priv_data;
+ parserctx->parser = tmpParser.parser;
+#else
+ memcpy(&parserctx->pts, (uint8_t*)s->vaddr + offset, sizeof(int64_t));
size = sizeof(int64_t);
+ memcpy(&parserctx->dts, (uint8_t*)s->vaddr + offset + size, sizeof(int64_t));
+ size += sizeof(int64_t);
+ memcpy(&parserctx->pos, (uint8_t*)s->vaddr + offset + size, sizeof(int64_t));
+ size += sizeof(int64_t);
+#endif
+ memcpy(&pts, (uint8_t*)s->vaddr + offset + size, sizeof(int64_t));
+ size += sizeof(int64_t);
memcpy(&dts, (uint8_t*)s->vaddr + offset + size, sizeof(int64_t));
size += sizeof(int64_t);
memcpy(&pos, (uint8_t*)s->vaddr + offset + size, sizeof(int64_t));
TRACE("[%s] inbuf : %p, outbuf : %p\n", __func__, inbuf, poutbuf);
#ifndef CODEC_COPY_DATA
-// memcpy((uint8_t*)s->vaddr + offset, parserctx, sizeof(AVCodecParserContext));
-// size = sizeof(AVCodecParserContext);
- memcpy((uint8_t*)s->vaddr + offset, &parserctx->pts, sizeof(int64_t));
- size = sizeof(int64_t);
+ memcpy((uint8_t*)s->vaddr + offset, parserctx, sizeof(AVCodecParserContext));
+ size = sizeof(AVCodecParserContext);
#else
memcpy((uint8_t*)s->vaddr + offset, &parserctx->pts, sizeof(int64_t));
size = sizeof(int64_t);
#endif
-// memcpy((uint8_t*)s->vaddr + offset, avctx, sizeof(AVCodecContext));
+// memcpy((uint8_t*)s->vaddr + offset + size, avctx, sizeof(AVCodecContext));
// size += sizeof(AVCodecContext);
memcpy((uint8_t*)s->vaddr + offset + size, &poutbuf_size, sizeof(int));
size += sizeof(int);
#endif
/* void av_parser_close (AVCodecParserContext *s) */
-static void qemu_av_parser_close (SVCodecState *s, int ctxIndex)
+void qemu_av_parser_close (SVCodecState *s, int ctxIndex)
{
AVCodecParserContext *parserctx;
pthread_mutex_unlock(&s->codec_mutex);
}
-static int codec_operate (uint32_t apiIndex, uint32_t ctxIndex, SVCodecState *state)
+int codec_operate (uint32_t apiIndex, uint32_t ctxIndex, SVCodecState *state)
{
int ret = -1;
void codec_write (void *opaque, target_phys_addr_t addr, uint64_t value, unsigned size);
-static int codec_operate(uint32_t apiIndex, uint32_t ctxIndex, SVCodecState *state);
+int codec_operate(uint32_t apiIndex, uint32_t ctxIndex, SVCodecState *state);
/*
* Codec Helper APIs
*/
-static void qemu_parser_init (SVCodecState *s, int ctxIndex);
+void qemu_parser_init (SVCodecState *s, int ctxIndex);
-static void qemu_restore_context (AVCodecContext *dst, AVCodecContext *src);
+void qemu_restore_context (AVCodecContext *dst, AVCodecContext *src);
-static void qemu_get_codec_ver (SVCodecState *s, int ctxIndex);
+void qemu_get_codec_ver (SVCodecState *s, int ctxIndex);
/*
* FFMPEG APIs
*/
-static void qemu_av_register_all (void);
+void qemu_av_register_all (void);
-static int qemu_avcodec_open (SVCodecState *s, int ctxIndex);
+int qemu_avcodec_open (SVCodecState *s, int ctxIndex);
-static int qemu_avcodec_close (SVCodecState *s, int ctxIndex);
+int qemu_avcodec_close (SVCodecState *s, int ctxIndex);
-static void qemu_avcodec_alloc_context (SVCodecState *s);
+void qemu_avcodec_alloc_context (SVCodecState *s);
-static void qemu_avcodec_alloc_frame (SVCodecState *s);
+void qemu_avcodec_alloc_frame (SVCodecState *s);
-static void qemu_av_free_context (SVCodecState* s, int ctxIndex);
+void qemu_av_free_context (SVCodecState* s, int ctxIndex);
-static void qemu_av_free_picture (SVCodecState* s, int ctxIndex);
+void qemu_av_free_picture (SVCodecState* s, int ctxIndex);
-static void qemu_av_free_palctrl (SVCodecState* s, int ctxIndex);
+void qemu_av_free_palctrl (SVCodecState* s, int ctxIndex);
-static void qemu_av_free_extradata (SVCodecState* s, int ctxIndex);
+void qemu_av_free_extradata (SVCodecState* s, int ctxIndex);
-static void qemu_avcodec_flush_buffers (SVCodecState *s, int ctxIndex);
+void qemu_avcodec_flush_buffers (SVCodecState *s, int ctxIndex);
-static int qemu_avcodec_decode_video (SVCodecState *s, int ctxIndex);
+int qemu_avcodec_decode_video (SVCodecState *s, int ctxIndex);
-static int qemu_avcodec_encode_video (SVCodecState *s, int ctxIndex);
+int qemu_avcodec_encode_video (SVCodecState *s, int ctxIndex);
-static int qemu_avcodec_decode_audio (SVCodecState *s, int ctxIndex);
+int qemu_avcodec_decode_audio (SVCodecState *s, int ctxIndex);
-static int qemu_avcodec_encode_audio (SVCodecState *s, int ctxIndex);
+int qemu_avcodec_encode_audio (SVCodecState *s, int ctxIndex);
-static void qemu_av_picture_copy (SVCodecState *s, int ctxIndex);
+void qemu_av_picture_copy (SVCodecState *s, int ctxIndex);
-static void qemu_av_parser_init (SVCodecState *s, int ctxIndex);
+void qemu_av_parser_init (SVCodecState *s, int ctxIndex);
-static int qemu_av_parser_parse (SVCodecState *s, int ctxIndex);
+int qemu_av_parser_parse (SVCodecState *s, int ctxIndex);
-static void qemu_av_parser_close (SVCodecState *s, int ctxIndex);
+void qemu_av_parser_close (SVCodecState *s, int ctxIndex);
-static int qemu_avcodec_get_buffer (AVCodecContext *context, AVFrame *picture);
+int qemu_avcodec_get_buffer (AVCodecContext *context, AVFrame *picture);
-static void qemu_avcodec_release_buffer (AVCodecContext *context, AVFrame *picture);
+void qemu_avcodec_release_buffer (AVCodecContext *context, AVFrame *picture);
#endif
}
-void maruskin_sdl_init(int swt_handle, int lcd_size_width, int lcd_size_height)
+void maruskin_sdl_init(uint64 swt_handle, int lcd_size_width, int lcd_size_height)
{
int w, h;
gchar SDL_windowhack[32];
#define SDL_USER_EVENT_CODE_HARDKEY 1
void maruskin_display_init(DisplayState *ds);
-void maruskin_sdl_init(int swt_handle, int lcd_size_width, int lcd_size_height);
+void maruskin_sdl_init(uint64 swt_handle, int lcd_size_width, int lcd_size_height);
void maruskin_sdl_resize(void);
DisplaySurface* get_qemu_display_surface( void );
-/*\r
- * mainloop_evhandle.c\r
- *\r
- * Copyright (C) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.\r
- *\r
- * Contact:\r
- * DoHyung Hong <don.hong@samsung.com>\r
- *\r
- * This program is free software; you can redistribute it and/or\r
- * modify it under the terms of the GNU General Public License\r
- * as published by the Free Software Foundation; either version 2\r
- * of the License, or (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\r
- *\r
- * Contributors:\r
- * - S-Core Co., Ltd\r
- *\r
- */\r
-\r
-\r
-#ifdef _WIN32\r
-#include <winsock.h>\r
-#define socklen_t int\r
-#else\r
-#include <netinet/in.h>\r
-#include <sys/ioctl.h>\r
-#endif\r
-\r
-#include "qobject.h"\r
-#include "qemu-common.h"\r
-#include "hw/usb.h"\r
-#include "hw/irq.h"\r
-#include "mloop_event.h"\r
-\r
-#define error_report(x, ...)\r
-\r
-struct mloop_evsock {\r
- int sockno;\r
- unsigned short portno;\r
- unsigned char status;\r
-};\r
-\r
-#define MLOOP_EVSOCK_NULL 0\r
-#define MLOOP_EVSOCK_CREATED 1\r
-#define MLOOP_EVSOCK_NOTBOUND 2\r
-#define MLOOP_EVSOCK_BOUND 3\r
-#define MLOOP_EVSOCK_CONNECTED 4\r
-\r
-#define PACKET_LEN 512\r
-struct mloop_evpack {\r
- short type;\r
- short size;\r
- char data[PACKET_LEN-4];\r
-};\r
-\r
-#define MLOOP_EVTYPE_USB_ADD 1\r
-#define MLOOP_EVTYPE_USB_DEL 2\r
-#define MLOOP_EVTYPE_INTR_UP 3\r
-#define MLOOP_EVTYPE_INTR_DOWN 4\r
-\r
-static struct mloop_evsock mloop = {-1,0,0};\r
-\r
-static int mloop_evsock_create(struct mloop_evsock *ev)\r
-{\r
- struct sockaddr sa;\r
- socklen_t sa_size;\r
- int ret;\r
- unsigned long nonblock = 1;\r
-\r
- if (ev == NULL) {\r
- error_report("mloop_evsock: null point");\r
- return -1;\r
- }\r
-\r
- ev->sockno = socket(AF_INET, SOCK_DGRAM, 0);\r
- if( ev->sockno == -1 ) {\r
- error_report("mloop_evsock: socket() failed");\r
- return -1;\r
- }\r
-\r
-#ifdef _WIN32\r
- ioctlsocket(ev->sockno, FIONBIO, &nonblock );\r
-#else\r
- ioctl(ev->sockno, FIONBIO, &nonblock);\r
-#endif // _WIN32\r
-\r
- nonblock = 1 ;\r
- setsockopt( ev->sockno, SOL_SOCKET, SO_REUSEADDR, (char *)&nonblock, sizeof(nonblock) ) ;\r
-\r
- memset(&sa, '\0', sizeof(sa));\r
- ((struct sockaddr_in *) &sa)->sin_family = AF_INET;\r
- memcpy(&((struct sockaddr_in *) &sa)->sin_addr, "\177\000\000\001", 4); // 127.0.0.1\r
- ((struct sockaddr_in *) &sa)->sin_port = htons(ev->portno);\r
- sa_size = sizeof(struct sockaddr_in);\r
-\r
- ret = bind(ev->sockno, &sa, sa_size);\r
- if (ret) {\r
- error_report("mloop_evsock: bind() failed");\r
- goto mloop_evsock_init_cleanup;\r
- }\r
-\r
- if (ev->portno == 0) {\r
- memset(&sa, '\0', sizeof(sa));\r
- getsockname(ev->sockno, (struct sockaddr *) &sa, &sa_size);\r
- ev->portno = ntohs(((struct sockaddr_in *) &sa)->sin_port);\r
- }\r
-\r
- ret = connect(ev->sockno, (struct sockaddr *) &sa, sa_size);\r
- if (ret) {\r
- error_report("mloop_evsock: connect() failed");\r
- goto mloop_evsock_init_cleanup;\r
- }\r
-\r
- ev->status = MLOOP_EVSOCK_CONNECTED;\r
- return 0;\r
-\r
-mloop_evsock_init_cleanup:\r
-#ifdef _WIN32\r
- closesocket(ev->sockno);\r
-#else\r
- close(ev->sockno);\r
-#endif\r
- ev->sockno = -1;\r
- ev->status = 0;\r
- return ret;\r
-}\r
-\r
-static void mloop_evsock_remove(struct mloop_evsock *ev)\r
-{\r
- if (!ev) {\r
- return ;\r
- }\r
-\r
- if (ev->sockno > 0) {\r
-#ifdef _WIN32\r
- shutdown(ev->sockno, SD_BOTH);\r
- closesocket(ev->sockno);\r
-#else\r
- shutdown(ev->sockno, SHUT_RDWR);\r
- close(ev->sockno);\r
-#endif\r
- ev->sockno = -1;\r
- ev->status = 0;\r
- }\r
-}\r
-\r
-static int mloop_evsock_send(struct mloop_evsock *ev, struct mloop_evpack *p)\r
-{\r
- int ret;\r
-\r
- if (ev == NULL || ev->sockno == -1) {\r
- error_report("invalid mloop_evsock");\r
- return -1;\r
- }\r
-\r
- if (p == NULL || p->size <= 0) {\r
- error_report("invalid mloop_evpack");\r
- return -1;\r
- }\r
-\r
- do {\r
- ret = send(ev->sockno, p, ntohs(p->size), 0);\r
-#ifdef _WIN32\r
- } while (ret == -1 && (WSAGetLastError() == WSAEWOULDBLOCK));\r
-#else\r
- } while (ret == -1 && (errno == EWOULDBLOCK || errno == EINTR));\r
-#endif // _WIN32\r
-\r
- return ret;\r
-}\r
-\r
-static USBDevice *usbkbd = NULL;\r
-static USBDevice *usbdisk = NULL;\r
-static void mloop_evhandle_usb_add(char *name)\r
-{\r
- if (name == NULL) {\r
- return;\r
- }\r
-\r
- if (strcmp(name, "keyboard") == 0) {\r
- if (usbkbd == NULL) {\r
- usbkbd = usbdevice_create(name);\r
- }\r
- else if (usbkbd->attached == 0) {\r
- usb_device_attach(usbkbd);\r
- }\r
- }\r
- else if (strncmp(name, "disk:", 5) == 0) {\r
- if (usbdisk == NULL) {\r
- usbdisk = usbdevice_create(name);\r
- }\r
- }\r
-}\r
-\r
-static void mloop_evhandle_usb_del(char *name)\r
-{\r
- if (name == NULL) {\r
- return;\r
- }\r
-\r
- if (strcmp(name, "keyboard") == 0) {\r
- if (usbkbd && usbkbd->attached != 0) {\r
- usb_device_detach(usbkbd);\r
- }\r
- }\r
- else if (strncmp(name, "disk:", 5) == 0) {\r
- if (usbdisk) {\r
- qdev_free(&usbdisk->qdev);\r
- }\r
- }\r
-}\r
-\r
-static void mloop_evhandle_intr_up(long data)\r
-{\r
- if (data == 0) {\r
- return;\r
- }\r
-\r
- qemu_irq_raise((qemu_irq)data);\r
-}\r
-\r
-static void mloop_evhandle_intr_down(long data)\r
-{\r
- if (data == 0) {\r
- return;\r
- }\r
-\r
- qemu_irq_lower((qemu_irq)data);\r
-}\r
-\r
-static void mloop_evcb_recv(struct mloop_evsock *ev)\r
-{\r
- struct mloop_evpack pack;\r
- int ret;\r
-\r
- do {\r
- ret = recv(ev->sockno, (void *)&pack, sizeof(pack), 0);\r
-#ifdef _WIN32\r
- } while (ret == -1 && WSAGetLastError() == WSAEINTR);\r
-#else\r
- } while (ret == -1 && errno == EINTR);\r
-#endif // _WIN32\r
-\r
- if (ret == -1 ) {\r
- return;\r
- }\r
-\r
- if (ret == 0 ) {\r
- return;\r
- }\r
-\r
- pack.type = ntohs(pack.type);\r
- pack.size = ntohs(pack.size);\r
-\r
- switch (pack.type) {\r
- case MLOOP_EVTYPE_USB_ADD:\r
- mloop_evhandle_usb_add(pack.data);\r
- break;\r
- case MLOOP_EVTYPE_USB_DEL:\r
- mloop_evhandle_usb_del(pack.data);\r
- break;\r
- case MLOOP_EVTYPE_INTR_UP:\r
- mloop_evhandle_intr_up(ntohl(*(long*)&pack.data[0]));\r
- break;\r
- case MLOOP_EVTYPE_INTR_DOWN:\r
- mloop_evhandle_intr_down(ntohl(*(long*)&pack.data[0]));\r
- break;\r
- default:\r
- break;\r
- }\r
-}\r
-\r
-void mloop_ev_init(void)\r
-{\r
- int ret = mloop_evsock_create(&mloop);\r
- if (ret == 0) {\r
- qemu_set_fd_handler(mloop.sockno, (IOHandler *)mloop_evcb_recv, NULL, &mloop);\r
- }\r
-}\r
-\r
-void mloop_ev_stop(void)\r
-{\r
- qemu_set_fd_handler(mloop.sockno, NULL, NULL, NULL);\r
- mloop_evsock_remove(&mloop);\r
-}\r
-\r
-void mloop_evcmd_usbkbd(int on)\r
-{\r
- struct mloop_evpack pack = { htons(MLOOP_EVTYPE_USB_ADD), htons(13), "keyboard" };\r
- if (on == 0)\r
- pack.type = htons(MLOOP_EVTYPE_USB_DEL);\r
- mloop_evsock_send(&mloop, &pack);\r
-}\r
-\r
-void mloop_evcmd_usbdisk(char *img)\r
-{\r
- struct mloop_evpack pack;\r
-\r
- if (img) {\r
- if (strlen(img) > PACKET_LEN-5) {\r
- // Need log\r
- return;\r
- }\r
-\r
- pack.type = htons(MLOOP_EVTYPE_USB_ADD);\r
- pack.size = htons(5 + sprintf(pack.data, "disk:%s", img));\r
- }\r
- else {\r
- pack.type = htons(MLOOP_EVTYPE_USB_DEL);\r
- pack.size = htons(5 + sprintf(pack.data, "disk:"));\r
- }\r
-\r
- mloop_evsock_send(&mloop, &pack);\r
-}\r
-\r
-int mloop_evcmd_get_usbkbd_status(void)\r
-{\r
- return (usbkbd && usbkbd->attached ? 1 : 0);\r
-}\r
-\r
-void mloop_evcmd_set_usbkbd(void *dev)\r
-{\r
- usbkbd = (USBDevice *)dev;\r
-}\r
-\r
-void mloop_evcmd_set_usbdisk(void *dev)\r
-{\r
- usbdisk = (USBDevice *)dev;\r
-}\r
-\r
-void mloop_evcmd_raise_intr(void *irq)\r
-{\r
- struct mloop_evpack pack;\r
- memset((void*)&pack, 0, sizeof(struct mloop_evpack));\r
- pack.type = htons(MLOOP_EVTYPE_INTR_UP);\r
- pack.size = htons(8);\r
- *(long*)&pack.data[0] = htonl((long)irq);\r
- mloop_evsock_send(&mloop, &pack);\r
-}\r
-\r
-void mloop_evcmd_lower_intr(void *irq)\r
-{\r
- struct mloop_evpack pack;\r
- memset((void*)&pack, 0, sizeof(struct mloop_evpack));\r
- pack.type = htons(MLOOP_EVTYPE_INTR_DOWN);\r
- pack.size = htons(8);\r
- *(long*)&pack.data[0] = htonl((long)irq);\r
- mloop_evsock_send(&mloop, &pack);\r
-}\r
+/*
+ * mainloop_evhandle.c
+ *
+ * Copyright (C) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
+ *
+ * Contact:
+ * DoHyung Hong <don.hong@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributors:
+ * - S-Core Co., Ltd
+ *
+ */
+
+
+#ifdef _WIN32
+#include <winsock.h>
+#define socklen_t int
+#else
+#include <netinet/in.h>
+#include <sys/ioctl.h>
+#endif
+
+#include "qobject.h"
+#include "qemu-common.h"
+#include "hw/usb.h"
+#include "hw/irq.h"
+#include "mloop_event.h"
+
+#define error_report(x, ...)
+
+struct mloop_evsock {
+ int sockno;
+ unsigned short portno;
+ unsigned char status;
+};
+
+#define MLOOP_EVSOCK_NULL 0
+#define MLOOP_EVSOCK_CREATED 1
+#define MLOOP_EVSOCK_NOTBOUND 2
+#define MLOOP_EVSOCK_BOUND 3
+#define MLOOP_EVSOCK_CONNECTED 4
+
+#define PACKET_LEN 512
+struct mloop_evpack {
+ short type;
+ short size;
+ char data[PACKET_LEN-4];
+};
+
+#define MLOOP_EVTYPE_USB_ADD 1
+#define MLOOP_EVTYPE_USB_DEL 2
+#define MLOOP_EVTYPE_INTR_UP 3
+#define MLOOP_EVTYPE_INTR_DOWN 4
+
+static struct mloop_evsock mloop = {-1,0,0};
+
+static int mloop_evsock_create(struct mloop_evsock *ev)
+{
+ struct sockaddr sa;
+ socklen_t sa_size;
+ int ret;
+ unsigned long nonblock = 1;
+
+ if (ev == NULL) {
+ error_report("mloop_evsock: null point");
+ return -1;
+ }
+
+ ev->sockno = socket(AF_INET, SOCK_DGRAM, 0);
+ if( ev->sockno == -1 ) {
+ error_report("mloop_evsock: socket() failed");
+ return -1;
+ }
+
+#ifdef _WIN32
+ ioctlsocket(ev->sockno, FIONBIO, &nonblock );
+#else
+ ioctl(ev->sockno, FIONBIO, &nonblock);
+#endif // _WIN32
+
+ nonblock = 1 ;
+ setsockopt( ev->sockno, SOL_SOCKET, SO_REUSEADDR, (char *)&nonblock, sizeof(nonblock) ) ;
+
+ memset(&sa, '\0', sizeof(sa));
+ ((struct sockaddr_in *) &sa)->sin_family = AF_INET;
+ memcpy(&((struct sockaddr_in *) &sa)->sin_addr, "\177\000\000\001", 4); // 127.0.0.1
+ ((struct sockaddr_in *) &sa)->sin_port = htons(ev->portno);
+ sa_size = sizeof(struct sockaddr_in);
+
+ ret = bind(ev->sockno, &sa, sa_size);
+ if (ret) {
+ error_report("mloop_evsock: bind() failed");
+ goto mloop_evsock_init_cleanup;
+ }
+
+ if (ev->portno == 0) {
+ memset(&sa, '\0', sizeof(sa));
+ getsockname(ev->sockno, (struct sockaddr *) &sa, &sa_size);
+ ev->portno = ntohs(((struct sockaddr_in *) &sa)->sin_port);
+ }
+
+ ret = connect(ev->sockno, (struct sockaddr *) &sa, sa_size);
+ if (ret) {
+ error_report("mloop_evsock: connect() failed");
+ goto mloop_evsock_init_cleanup;
+ }
+
+ ev->status = MLOOP_EVSOCK_CONNECTED;
+ return 0;
+
+mloop_evsock_init_cleanup:
+#ifdef _WIN32
+ closesocket(ev->sockno);
+#else
+ close(ev->sockno);
+#endif
+ ev->sockno = -1;
+ ev->status = 0;
+ return ret;
+}
+
+static void mloop_evsock_remove(struct mloop_evsock *ev)
+{
+ if (!ev) {
+ return ;
+ }
+
+ if (ev->sockno > 0) {
+#ifdef _WIN32
+ shutdown(ev->sockno, SD_BOTH);
+ closesocket(ev->sockno);
+#else
+ shutdown(ev->sockno, SHUT_RDWR);
+ close(ev->sockno);
+#endif
+ ev->sockno = -1;
+ ev->status = 0;
+ }
+}
+
+static int mloop_evsock_send(struct mloop_evsock *ev, struct mloop_evpack *p)
+{
+ int ret;
+
+ if (ev == NULL || ev->sockno == -1) {
+ error_report("invalid mloop_evsock");
+ return -1;
+ }
+
+ if (p == NULL || p->size <= 0) {
+ error_report("invalid mloop_evpack");
+ return -1;
+ }
+
+ do {
+ ret = send(ev->sockno, p, ntohs(p->size), 0);
+#ifdef _WIN32
+ } while (ret == -1 && (WSAGetLastError() == WSAEWOULDBLOCK));
+#else
+ } while (ret == -1 && (errno == EWOULDBLOCK || errno == EINTR));
+#endif // _WIN32
+
+ return ret;
+}
+
+static USBDevice *usbkbd = NULL;
+static USBDevice *usbdisk = NULL;
+static void mloop_evhandle_usb_add(char *name)
+{
+ if (name == NULL) {
+ return;
+ }
+
+ if (strcmp(name, "keyboard") == 0) {
+ if (usbkbd == NULL) {
+ usbkbd = usbdevice_create(name);
+ }
+ else if (usbkbd->attached == 0) {
+ usb_device_attach(usbkbd);
+ }
+ }
+ else if (strncmp(name, "disk:", 5) == 0) {
+ if (usbdisk == NULL) {
+ usbdisk = usbdevice_create(name);
+ }
+ }
+}
+
+static void mloop_evhandle_usb_del(char *name)
+{
+ if (name == NULL) {
+ return;
+ }
+
+ if (strcmp(name, "keyboard") == 0) {
+ if (usbkbd && usbkbd->attached != 0) {
+ usb_device_detach(usbkbd);
+ }
+ }
+ else if (strncmp(name, "disk:", 5) == 0) {
+ if (usbdisk) {
+ qdev_free(&usbdisk->qdev);
+ }
+ }
+}
+
+static void mloop_evhandle_intr_up(long data)
+{
+ if (data == 0) {
+ return;
+ }
+
+ qemu_irq_raise((qemu_irq)data);
+}
+
+static void mloop_evhandle_intr_down(long data)
+{
+ if (data == 0) {
+ return;
+ }
+
+ qemu_irq_lower((qemu_irq)data);
+}
+
+static void mloop_evcb_recv(struct mloop_evsock *ev)
+{
+ struct mloop_evpack pack;
+ int ret;
+
+ do {
+ ret = recv(ev->sockno, (void *)&pack, sizeof(pack), 0);
+#ifdef _WIN32
+ } while (ret == -1 && WSAGetLastError() == WSAEINTR);
+#else
+ } while (ret == -1 && errno == EINTR);
+#endif // _WIN32
+
+ if (ret == -1 ) {
+ return;
+ }
+
+ if (ret == 0 ) {
+ return;
+ }
+
+ pack.type = ntohs(pack.type);
+ pack.size = ntohs(pack.size);
+
+ switch (pack.type) {
+ case MLOOP_EVTYPE_USB_ADD:
+ mloop_evhandle_usb_add(pack.data);
+ break;
+ case MLOOP_EVTYPE_USB_DEL:
+ mloop_evhandle_usb_del(pack.data);
+ break;
+ case MLOOP_EVTYPE_INTR_UP:
+ mloop_evhandle_intr_up(ntohl(*(long*)&pack.data[0]));
+ break;
+ case MLOOP_EVTYPE_INTR_DOWN:
+ mloop_evhandle_intr_down(ntohl(*(long*)&pack.data[0]));
+ break;
+ default:
+ break;
+ }
+}
+
+void mloop_ev_init(void)
+{
+ int ret = mloop_evsock_create(&mloop);
+ if (ret == 0) {
+ qemu_set_fd_handler(mloop.sockno, (IOHandler *)mloop_evcb_recv, NULL, &mloop);
+ }
+}
+
+void mloop_ev_stop(void)
+{
+ qemu_set_fd_handler(mloop.sockno, NULL, NULL, NULL);
+ mloop_evsock_remove(&mloop);
+}
+
+void mloop_evcmd_usbkbd(int on)
+{
+ struct mloop_evpack pack = { htons(MLOOP_EVTYPE_USB_ADD), htons(13), "keyboard" };
+ if (on == 0)
+ pack.type = htons(MLOOP_EVTYPE_USB_DEL);
+ mloop_evsock_send(&mloop, &pack);
+}
+
+void mloop_evcmd_usbdisk(char *img)
+{
+ struct mloop_evpack pack;
+
+ if (img) {
+ if (strlen(img) > PACKET_LEN-5) {
+ // Need log
+ return;
+ }
+
+ pack.type = htons(MLOOP_EVTYPE_USB_ADD);
+ pack.size = htons(5 + sprintf(pack.data, "disk:%s", img));
+ }
+ else {
+ pack.type = htons(MLOOP_EVTYPE_USB_DEL);
+ pack.size = htons(5 + sprintf(pack.data, "disk:"));
+ }
+
+ mloop_evsock_send(&mloop, &pack);
+}
+
+int mloop_evcmd_get_usbkbd_status(void)
+{
+ return (usbkbd && usbkbd->attached ? 1 : 0);
+}
+
+void mloop_evcmd_set_usbkbd(void *dev)
+{
+ usbkbd = (USBDevice *)dev;
+}
+
+void mloop_evcmd_set_usbdisk(void *dev)
+{
+ usbdisk = (USBDevice *)dev;
+}
+
+void mloop_evcmd_raise_intr(void *irq)
+{
+ struct mloop_evpack pack;
+ memset((void*)&pack, 0, sizeof(struct mloop_evpack));
+ pack.type = htons(MLOOP_EVTYPE_INTR_UP);
+ pack.size = htons(8);
+ *(long*)&pack.data[0] = htonl((long)irq);
+ mloop_evsock_send(&mloop, &pack);
+}
+
+void mloop_evcmd_lower_intr(void *irq)
+{
+ struct mloop_evpack pack;
+ memset((void*)&pack, 0, sizeof(struct mloop_evpack));
+ pack.type = htons(MLOOP_EVTYPE_INTR_DOWN);
+ pack.size = htons(8);
+ *(long*)&pack.data[0] = htonl((long)irq);
+ mloop_evsock_send(&mloop, &pack);
+}
-/*\r
- * mainloop_evhandle.c\r
- *\r
- * Copyright (C) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.\r
- *\r
- * Contact:\r
- * DoHyung Hong <don.hong@samsung.com>\r
- *\r
- * This program is free software; you can redistribute it and/or\r
- * modify it under the terms of the GNU General Public License\r
- * as published by the Free Software Foundation; either version 2\r
- * of the License, or (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\r
- *\r
- * Contributors:\r
- * - S-Core Co., Ltd\r
- *\r
- */\r
-\r
-#ifndef MLOOP_EVENT_H_\r
-#define MLOOP_EVENT_H_\r
-\r
-#ifdef __cplusplus\r
-extern "C" {\r
-#endif\r
-\r
-void mloop_ev_init(void);\r
-void mloop_ev_stop(void);\r
-\r
-void mloop_evcmd_usbkbd(int on);\r
-void mloop_evcmd_usbdisk(char *img);\r
-\r
-int mloop_evcmd_get_usbkbd_status(void);\r
-\r
-void mloop_evcmd_set_usbkbd(void *dev);\r
-void mloop_evcmd_set_usbdisk(void *dev);\r
-\r
-void mloop_evcmd_raise_intr(void *irq);\r
-void mloop_evcmd_lower_intr(void *irq);\r
-\r
-#ifdef __cplusplus\r
-}\r
-#endif\r
-\r
-#endif /* MLOOP_EVENT_H_ */\r
+/*
+ * mainloop_evhandle.c
+ *
+ * Copyright (C) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
+ *
+ * Contact:
+ * DoHyung Hong <don.hong@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributors:
+ * - S-Core Co., Ltd
+ *
+ */
+
+#ifndef MLOOP_EVENT_H_
+#define MLOOP_EVENT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void mloop_ev_init(void);
+void mloop_ev_stop(void);
+
+void mloop_evcmd_usbkbd(int on);
+void mloop_evcmd_usbdisk(char *img);
+
+int mloop_evcmd_get_usbkbd_status(void);
+
+void mloop_evcmd_set_usbkbd(void *dev);
+void mloop_evcmd_set_usbdisk(void *dev);
+
+void mloop_evcmd_raise_intr(void *irq);
+void mloop_evcmd_lower_intr(void *irq);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MLOOP_EVENT_H_ */
/**
- *
+ * Emulator Skin Process
*
* Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
*
private ScreenShotDialog screenShotDialog;
private SocketCommunicator communicator;
- private int windowHandleId;
+ private long windowHandleId;
private Listener shellCloseListener;
private PaintListener shellPaintListener;
private EmulatorSkin reopenSkin;
+ /**
+ * @brief constructor
+ * @param config : configuration of emulator skin
+ * @param isOnTop : always on top flag
+ */
protected EmulatorSkin( EmulatorConfig config, boolean isOnTop ) {
this.config = config;
this.isDefaultHoverColor = true;
this.communicator = communicator;
}
- public int compose() {
+ public long compose() {
this.lcdCanvas = new Canvas( shell, SWT.EMBEDDED );
//
// }
- private int getWindowHandleId() {
+ private long getWindowHandleId() {
- int windowHandleId = 0;
+ long windowHandleId = 0;
if ( SkinUtil.isLinuxPlatform() ) {
try {
Field field = lcdCanvas.getClass().getField( "embeddedHandle" );
- windowHandleId = field.getInt( lcdCanvas );
+ windowHandleId = field.getLong( lcdCanvas );
logger.info( "lcdCanvas.embeddedHandle:" + windowHandleId );
} catch ( IllegalArgumentException e ) {
logger.log( Level.SEVERE, e.getMessage(), e );
}
}
+ SkinUtil.trimShell( shell, currentImage );
+
KeyEventData keyEventData = new KeyEventData( KeyEventType.RELEASED.value(), keyCode, 0 );
communicator.sendToQEMU( SendCommand.SEND_HARD_KEY_EVENT, keyEventData );
}
region.height - 1, // src
region.x + 1, region.y + 1, region.width - 1, region.height - 1 ); // dst
gc.dispose();
+
+ SkinUtil.trimShell( shell, currentKeyPressedImage, region.x, region.y, region.width, region.height );
}
KeyEventData keyEventData = new KeyEventData( KeyEventType.PRESSED.value(), keyCode, 0 );
boolean isOnTop = Boolean.parseBoolean( onTopVal );
EmulatorSkin skin = new EmulatorSkin( config, isOnTop );
- int windowHandleId = skin.compose();
+ long windowHandleId = skin.compose();
int uid = config.getArgInt( ArgsConstants.UID );
communicator = new SocketCommunicator( config, uid, windowHandleId, skin );
private EmulatorConfig config;
private int uId;
- private int windowHandleId;
+ private long windowHandleId;
private EmulatorSkin skin;
private Socket socket;
private Thread sendThread;
private LinkedList<SkinSendData> sendQueue;
- public SocketCommunicator( EmulatorConfig config, int uId, int windowHandleId, EmulatorSkin skin ) {
+ public SocketCommunicator( EmulatorConfig config, int uId, long windowHandleId, EmulatorSkin skin ) {
this.config = config;
this.uId = uId;
// has to be portrait mode at first booting time
short rotation = EmulatorConfig.DEFAULT_WINDOW_ROTATION;
StartData startData = new StartData( windowHandleId, width, height, scale, rotation );
+ logger.info("StartData" + startData);
sendToQEMU( SendCommand.SEND_START, startData );
dos.writeInt( val );
}
- protected void writeLong ( int val ) throws IOException {
+ protected void writeLong ( long val ) throws IOException {
dos.writeLong( val );
}
*/
public class StartData extends AbstractSendData {
- private int windowHandleId;
+ private long windowHandleId;
private int lcdSizeWidth;
private int lcdSizeHeight;
private int scale;
private short rotation;
- public StartData(int windowHandleId, int lcdSizeWidth, int lcdSizeHeight, int scale, short rotation ) {
+ public StartData(long windowHandleId, int lcdSizeWidth, int lcdSizeHeight, int scale, short rotation ) {
this.windowHandleId = windowHandleId;
this.lcdSizeWidth = lcdSizeWidth;
this.lcdSizeHeight = lcdSizeHeight;
@Override
protected void write() throws IOException {
- writeInt( windowHandleId );
+ writeLong( windowHandleId );
writeInt( lcdSizeWidth );
writeInt( lcdSizeHeight );
writeInt( scale );
COPY_SCREEN_SHOT( "copy_screenshot_dialog.png" ),
REFRESH_SCREEN_SHOT( "refresh_screenshot_dialog.png" ),
+ INCREASE_SCALE( "increase_scale.png" ),
+ DECREASE_SCALE( "decrease_scale.png" ),
SAVE_SCREEN_SHOT( "save_screenshot_dialog.png" ),
EMULATOR_TITLE( "Emulator_20x20.png" ),
/**
- *
+ * Capture a screenshot of the Emulator framebuffer
*
* Copyright ( C ) 2011 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
*
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageLoader;
import org.eclipse.swt.graphics.PaletteData;
+import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.FileDialog;
+import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.ToolBar;
public final static int COLOR_DEPTH = 32;
public final static int CANVAS_MARGIN = 30;
+ public final static int TOOLITEM_COOLTIME = 200;
private Logger logger = SkinLogger.getSkinLogger( ScreenShotDialog.class ).getLogger();
private Canvas imageCanvas;
private Shell shell;
private ScrolledComposite scrollComposite;
+ private Label label;
private SocketCommunicator communicator;
private EmulatorSkin emulatorSkin;
private RotationInfo currentRotation;
private boolean reserveImage;
-
+ private ToolItem refreshItem;
+ private ToolItem copyItem;
+ private ToolItem IncreaseScaleItem;
+ private ToolItem DecreaseScaleItem;
+ private double scaleLevel;
+ /**
+ * @brief constructor
+ * @param Image icon : screenshot window icon resource
+ */
public ScreenShotDialog( Shell parent, SocketCommunicator communicator, EmulatorSkin emulatorSkin,
EmulatorConfig config, Image icon ) throws ScreenShotException {
this.communicator = communicator;
this.emulatorSkin = emulatorSkin;
this.config = config;
-
+ scaleLevel = 100d;
shell = new Shell( Display.getDefault(), SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MAX );
shell.setText( "Screen Shot - " + SkinUtil.makeEmulatorName( config ) );
if (icon != null) {
logger.fine( "paint image." );
if ( null != image && !image.isDisposed() ) {
- e.gc.drawImage( image, CANVAS_MARGIN, CANVAS_MARGIN );
+ //e.gc.drawImage( image, CANVAS_MARGIN, CANVAS_MARGIN );
+ Rectangle r = image.getBounds();
+ e.gc.drawImage(image, 0, 0, r.width, r.height,
+ CANVAS_MARGIN, CANVAS_MARGIN, (int)(r.width * scaleLevel * 1/100), (int)(r.height * scaleLevel * 1/100));
}
}
}
throw e;
}
-
+
shell.pack();
-
- Rectangle monitorBound = Display.getDefault().getBounds();
- logger.info("current display size : " + monitorBound);
- int x = parent.getLocation().x + parent.getSize().x + 20;
- int y = parent.getLocation().y;
- if ((x + shell.getSize().x) > (monitorBound.x + monitorBound.width)) {
- x = parent.getLocation().x - shell.getSize().x - 20;
+
+ label = new Label(shell, SWT.NORMAL );
+ label.setText(" Resolution : " + config.getArgInt(ArgsConstants.RESOLUTION_WIDTH) +
+ "x" + config.getArgInt(ArgsConstants.RESOLUTION_HEIGHT) + " " + scaleLevel + "%");
+
+// imageCanvas.addMouseMoveListener(new MouseMoveListener() {
+// public void mouseMove(MouseEvent e) {
+// Rectangle rectangle = imageCanvas.getBounds();
+// if(rectangle.contains(e.x - CANVAS_MARGIN, e.y - CANVAS_MARGIN) == true ) {
+// ImageData imageData = image.getImageData();
+//
+// try {
+// int pixel = imageData.getPixel(e.x - CANVAS_MARGIN , e.y - CANVAS_MARGIN);
+// if(pixel != 0) {
+// PaletteData paletteData = new PaletteData( RED_MASK, GREEN_MASK, BLUE_MASK );
+// RGB rgb = paletteData.getRGB(pixel);
+// label.setText("R: "+ rgb.red + " G: " + rgb.green + " B: " + rgb.blue);
+// label.update();
+// }
+// }catch (IllegalArgumentException e1) {
+// logger.warning(e1.getMessage());
+// }
+//
+// }
+// }
+// });
+
+ Rectangle monitorBound = Display.getDefault().getBounds();
+ logger.info("host monitor display bound : " + monitorBound);
+ Rectangle emulatorBound = parent.getBounds();
+ logger.info("current Emulator window bound : " + emulatorBound);
+ Rectangle dialogBound = shell.getBounds();
+ logger.info("current ScreenShot Dialog bound : " + dialogBound);
+
+ /* size correction */
+ shell.setSize(emulatorBound.width, emulatorBound.height);
+ dialogBound = shell.getBounds();
+ logger.info("current ScreenShot Dialog bound : " + dialogBound);
+
+ /* location correction */
+ int x = emulatorBound.x + emulatorBound.width + 20;
+ int y = emulatorBound.y;
+ if ((x + dialogBound.width) > (monitorBound.x + monitorBound.width)) {
+ x = emulatorBound.x - dialogBound.width - 20;
}
shell.setLocation(x, y);
+ dialogBound = shell.getBounds();
+ logger.info("current ScreenShot Dialog bound : " + dialogBound);
}
int width = config.getArgInt( ArgsConstants.RESOLUTION_WIDTH );
int height = config.getArgInt( ArgsConstants.RESOLUTION_HEIGHT );
- ImageData imageData = new ImageData( width, height, COLOR_DEPTH, paletteData, 1, receivedData );
-
+ ImageData imageData = new ImageData( width , height, COLOR_DEPTH, paletteData, 1, receivedData );
+
RotationInfo rotation = getCurrentRotation();
imageData = rotateImageData( imageData, rotation );
- this.image = new Image( Display.getDefault(), imageData );
- imageCanvas.redraw();
-
+ this.image = new Image( Display.getDefault(), imageData );
+
+ imageCanvas.redraw();
+
} else {
throw new ScreenShotException( "Fail to get image data." );
}
}
+
+ public double getScaleLevel() {
+ return scaleLevel;
+ }
+ public void DownScaleLevel() {
+ scaleLevel /= 2;
+ logger.info("down scaling level : " + scaleLevel);
+ }
+
+ public void UpScaleLevel() {
+ scaleLevel *= 2;
+ logger.info("up scaling level : " + scaleLevel);
+ }
+
private void arrageImageLayout() {
ImageData imageData = image.getImageData();
} );
- ToolItem copyItem = new ToolItem( toolBar, SWT.FLAT );
+ copyItem = new ToolItem( toolBar, SWT.FLAT );
copyItem.setImage( ImageRegistry.getInstance().getIcon( IconName.COPY_SCREEN_SHOT ) );
copyItem.setToolTipText( "Copy to clipboard" );
return;
}
+ copyItem.setEnabled(false);
+ shell.getDisplay().asyncExec(new Runnable() {
+ public void run() {
+ try {
+ Thread.sleep(TOOLITEM_COOLTIME);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ copyItem.setEnabled(true);
+ }
+ });
+
ImageLoader loader = new ImageLoader();
ImageData data = null;
} );
- ToolItem refreshItem = new ToolItem( toolBar, SWT.FLAT );
+ refreshItem = new ToolItem( toolBar, SWT.FLAT );
refreshItem.setImage( ImageRegistry.getInstance().getIcon( IconName.REFRESH_SCREEN_SHOT ) );
refreshItem.setToolTipText( "Refresh image" );
@Override
public void widgetSelected( SelectionEvent e ) {
+ refreshItem.setEnabled(false);
+ shell.getDisplay().asyncExec(new Runnable() {
+ public void run() {
+ try {
+ Thread.sleep(TOOLITEM_COOLTIME);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ refreshItem.setEnabled(true);
+ }
+ });
+
+ Point dialogSize = shell.getSize();
+
try {
clickShutter();
} catch ( ScreenShotException ex ) {
logger.log( Level.SEVERE, "Fail to create a screen shot.", ex );
SkinUtil.openMessage( shell, null, "Fail to create a screen shot.", SWT.ERROR, config );
}
+
+ /* restoration */
+ if (shell.getSize() != dialogSize) {
+ shell.setSize(dialogSize);
+ }
+ }
+
+ } );
+
+ IncreaseScaleItem = new ToolItem( toolBar, SWT.FLAT );
+ IncreaseScaleItem.setImage( ImageRegistry.getInstance().getIcon( IconName.INCREASE_SCALE ) );
+ IncreaseScaleItem.setToolTipText( "Increase view size" );
+ IncreaseScaleItem.addSelectionListener( new SelectionAdapter() {
+ @Override
+ public void widgetSelected( SelectionEvent e ) {
+ double level = getScaleLevel();
+ Point dialogSize = shell.getSize();
+
+ UpScaleLevel();
+ imageCanvas.redraw();
+ arrageImageLayout();
+ label.setText(" Resolution : " + config.getArgInt(ArgsConstants.RESOLUTION_WIDTH) +
+ "x" + config.getArgInt(ArgsConstants.RESOLUTION_HEIGHT) + " " + scaleLevel + "%");
+ label.update();
+
+ if(level >= 400d) {
+ IncreaseScaleItem.setEnabled(false);
+ DecreaseScaleItem.setEnabled(true);
+ }else {
+ IncreaseScaleItem.setEnabled(true);
+ DecreaseScaleItem.setEnabled(true);
+ }
+
+ /* restoration */
+ if (shell.getSize() != dialogSize) {
+ shell.setSize(dialogSize);
+ }
+ }
+
+ } );
+
+ DecreaseScaleItem = new ToolItem( toolBar, SWT.FLAT );
+ DecreaseScaleItem.setImage( ImageRegistry.getInstance().getIcon( IconName.DECREASE_SCALE ) );
+ DecreaseScaleItem.setToolTipText( "Decrease view size" );
+ DecreaseScaleItem.addSelectionListener( new SelectionAdapter() {
+ @Override
+ public void widgetSelected( SelectionEvent e ) {
+ double level = getScaleLevel();
+ Point dialogSize = shell.getSize();
+
+ DownScaleLevel();
+ imageCanvas.redraw();
+ arrageImageLayout();
+ label.setText(" Resolution : " + config.getArgInt(ArgsConstants.RESOLUTION_WIDTH) +
+ "x" + config.getArgInt(ArgsConstants.RESOLUTION_HEIGHT) + " " + scaleLevel + "%");
+ label.update();
+
+ if(level <= 25) {
+ DecreaseScaleItem.setEnabled(false);
+ IncreaseScaleItem.setEnabled(true);
+ }else {
+ DecreaseScaleItem.setEnabled(true);
+ IncreaseScaleItem.setEnabled(true);
+ }
+
+ /* restoration */
+ if (shell.getSize() != dialogSize) {
+ shell.setSize(dialogSize);
+ }
}
} );
+
}
private void saveFile( String fileFullPath, FileDialog fileDialog ) {
return shell;
}
-}
+}
\ No newline at end of file
}
+ public static void trimShell(Shell shell, Image image, int left, int top,
+ int width, int height) {
+
+ if (null == image) {
+ return;
+ }
+
+ ImageData imageData = image.getImageData();
+
+ int right = left + width;
+ int bottom = top + height;
+
+ Region region = shell.getRegion();
+ if (region == null) {
+ return;
+ }
+
+ for (int i = left; i < right; i++) {
+ for (int j = top; j < bottom; j++) {
+ int alpha = imageData.getAlpha(i, j);
+ if (0 == alpha) {
+ region.subtract(i, j, 1, 1);
+ }
+ }
+ }
+
+ shell.setRegion(region);
+ }
+
public static int[] convertMouseGeometry( int originalX, int originalY, int lcdWidth, int lcdHeight, int scale,
int angle ) {
#include "maruskin_keymap.h"
#include "emul_state.h"
#include "hw/maru_pm.h"
-#include "qemu-common.h"
#include "sysemu.h"
#ifdef _WIN32
static void* run_timed_shutdown_thread( void* args );
static void send_to_emuld( const char* request_type, int request_size, const char* send_buf, int buf_size );
-void start_display( int handle_id, int lcd_size_width, int lcd_size_height, double scale_factor, short rotation_type )
+void start_display(uint64 handle_id, int lcd_size_width, int lcd_size_height, double scale_factor, short rotation_type)
{
- INFO( "start_display handle_id:%d, lcd size:%dx%d, scale_factor:%lf, rotation_type:%d\n",
+ INFO( "start_display handle_id:%ld, lcd size:%dx%d, scale_factor:%lf, rotation_type:%d\n",
handle_id, lcd_size_width, lcd_size_height, scale_factor, rotation_type );
set_emul_win_scale(scale_factor);
#ifndef MARUSKIN_OPERATION_H_
#define MARUSKIN_OPERATION_H_
+#include "qemu-common.h"
+
+
extern int ret_hax_init;
struct QemuSurfaceInfo {
};
typedef struct DetailInfo DetailInfo;
-void start_display( int handle_id, int lcd_size_width, int lcd_size_height, double scale_factor, short rotation_type );
+void start_display(uint64 handle_id, int lcd_size_width, int lcd_size_height, double scale_factor, short rotation_type);
void do_mouse_event( int event_type, int x, int y, int z );
}
/* keep it consistent with emulator-skin definition */
- int handle_id = 0;
+ uint64 handle_id = 0;
int lcd_size_width = 0;
int lcd_size_height = 0;
int scale = 0;
p += sizeof( scale );
memcpy( &rotation, p, sizeof( rotation ) );
- handle_id = ntohl( handle_id );
+ int low_id = (int)handle_id;
+ int high_id = (int)(handle_id >> 32);
+ low_id = ntohl(high_id);
+ high_id = ntohl(low_id);
+ handle_id = high_id;
+ handle_id = (handle_id << 32) | low_id;
+
lcd_size_width = ntohl( lcd_size_width );
lcd_size_height = ntohl( lcd_size_height );
scale = ntohl( scale );
projects / sdk / emulator / qemu.git / commitdiff
