#include <Errors.h>
+// mmu_man: this is needed for http.c (defined errno)
+#include <errno.h>
+
#ifdef ENOENT
#undef ENOENT
#endif
v4l="yes"
audio_oss="yes"
network="yes"
+zlib="yes"
mp3lame="no"
a52="yes"
a52bin="no"
;;
--disable-network) network="no"
;;
+ --disable-zlib) zlib="no"
+ ;;
--disable-a52) a52="no"
;;
--enable-a52bin) a52bin="yes" ; extralibs="-ldl $extralibs"
$cc -o $TMPO $TMPC 2> /dev/null || _memalign=no
fi
+if test "$zlib" = "yes"; then
+# check for zlib - mmu_man
+cat > $TMPC << EOF
+#include <zlib.h>
+int main ( void ) {
+if (zlibVersion() != ZLIB_VERSION)
+ puts("zlib version differs !!!");
+ return 1;
+return 0;
+}
+EOF
+$cc -o $TMPO $TMPC -lz 2> /dev/null || zlib="no"
+# $TMPO 2> /dev/null > /dev/null || zlib="no"
+# XXX: more tests needed - runtime test
+fi
+if test "$zlib" = "yes"; then
+extralibs="$extralibs -lz"
+fi
+
_restrict=
for restrict_keyword in restrict __restrict__ __restrict; do
echo "void foo(char * $restrict_keyword p);" > $TMPC
echo " --disable-audio-oss disable OSS audio support [default=no]"
echo " --disable-v4l disable video4linux grabbing [default=no]"
echo " --disable-network disable network support [default=no]"
+echo " --disable-zlib disable zlib [default=no]"
echo " --disable-simple_idct disable simple IDCT routines [default=no]"
echo " --enable-gprof enable profiling with gprof [$gprof]"
echo " --disable-mpegaudio-hp faster (but less accurate)"
echo "Big Endian $bigendian"
echo "MMX enabled $mmx"
echo "gprof enabled $gprof"
+echo "zlib enabled $zlib"
echo "mp3lame enabled $mp3lame"
echo "a52 support $a52"
echo "a52 dlopened $a52bin"
echo "CONFIG_NETWORK=yes" >> config.mak
fi
+if test "$zlib" = "yes" ; then
+ echo "#define CONFIG_ZLIB 1" >> $TMPH
+ echo "CONFIG_ZLIB=yes" >> config.mak
+fi
+
if test "$mp3lame" = "yes" ; then
echo "#define CONFIG_MP3LAME 1" >> $TMPH
echo "CONFIG_MP3LAME=yes" >> config.mak
--- /dev/null
+Compilation on BeOS:
+--------------------
+
+François Revol - revol@free.fr - July 2002
+
+The configure script should guess the configuration itself.
+Networking support is currently not finished.
+errno issues fixed by Andrew Bachmann.
+
+Old stuff:
+
+François Revol - revol@free.fr - April 2002
+
+The configure script should guess the configuration itself,
+however I still didn't tested building on net_server version of BeOS.
+
+ffserver is broken (needs poll() implementation).
+
+There is still issues with errno codes, which are negative in BeOs, and
+that ffmpeg negates when returning. This ends up turning errors into
+valid results, then crashes.
+(To be fixed)
+
#include "avformat.h"
#include "avi.h"
+#ifdef CONFIG_ZLIB
+#include <zlib.h>
+#endif
+
/*
* First version by Francois Revol revol@free.fr
*
* Features and limitations:
* - reads most of the QT files I have (at least the structure),
* the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
+ * FIXED, Francois Revol, 07/17/2002
* - ffmpeg has nearly none of the usual QuickTime codecs,
* although I succesfully dumped raw and mp3 audio tracks off .mov files.
* Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
static const CodecTag mov_video_tags[] = {
/* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
/* { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG */
- { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
- { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
+/* { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
+/* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
/* Graphics */
/* Animation */
/* Apple video */
{ CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
/* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
/* Sorenson video */
+ { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
+ { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, /* OpenDiVX *//* yeah ! */
{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
/* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
+ { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
{ 0, 0 },
};
{ CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
{ CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
{ CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
-/* { CODEC_ID_, MKTAG('i', 'm', 'a', '4') }, *//* IMA-4 */
+ { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
{ CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
{ CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
long sample_size;
long sample_count;
long *sample_sizes;
+ long time_scale;
} MOVStreamContext;
typedef struct MOVContext {
get_be32(pb); /* creation time */
get_be32(pb); /* modification time */
c->time_scale = get_be32(pb); /* time scale */
+#ifdef DEBUG
+ printf("time scale = %li\n", c->time_scale);
+#endif
get_be32(pb); /* duration */
get_be32(pb); /* preferred scale */
return 0;
}
+static int parse_mdhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ AVStream *st;
+#ifdef DEBUG
+ print_atom("mdhd", atom_type, atom_offset, atom_size);
+#endif
+
+ c = (MOVContext *)param;
+ st = c->fc->streams[c->fc->nb_streams-1];
+
+ get_byte(pb); /* version */
+
+ get_byte(pb); get_byte(pb);
+ get_byte(pb); /* flags */
+
+ get_be32(pb); /* creation time */
+ get_be32(pb); /* modification time */
+
+ c->streams[c->total_streams]->time_scale = get_be32(pb);
+
+#ifdef DEBUG
+ printf("track[%i].time_scale = %li\n", c->fc->nb_streams-1, c->streams[c->total_streams]->time_scale); /* time scale */
+#endif
+ get_be32(pb); /* duration */
+
+ get_be16(pb); /* language */
+ get_be16(pb); /* quality */
+
+ return 0;
+}
+
static int parse_hdlr(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
{
MOVContext *c;
#endif
if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
+ /* helps parsing the string hereafter... */
+ c->mp4 = 0;
if(type == MKTAG('v', 'i', 'd', 'e'))
st->codec.codec_type = CODEC_TYPE_VIDEO;
else if(type == MKTAG('s', 'o', 'u', 'n'))
st->codec.codec_type = CODEC_TYPE_AUDIO;
} else if(ctype == 0) { /* MP4 */
+ /* helps parsing the string hereafter... */
+ c->mp4 = 1;
if(type == MKTAG('v', 'i', 'd', 'e'))
st->codec.codec_type = CODEC_TYPE_VIDEO;
else if(type == MKTAG('s', 'o', 'u', 'n'))
return 0; /* nothing left to read */
/* XXX: MP4 uses a C string, not a pascal one */
/* component name */
+
+ if(c->mp4) {
+ /* .mp4: C string */
+ while(get_byte(pb) && (++len < (atom_size - 24)));
+ } else {
+ /* .mov: PASCAL string */
+ len = get_byte(pb);
+ buf = av_malloc(len+1);
+ get_buffer(pb, buf, len);
+ buf[len] = '\0';
+#ifdef DEBUG
+ printf("**buf='%s'\n", buf);
+#endif
+ av_free(buf);
+ }
+#if 0
len = get_byte(pb);
/* XXX: use a better heuristic */
if(len < 32) {
len = get_byte(pb);
}
}
+#endif
return 0;
}
if(format == MKTAG('m', 'p', '4', 'v')) { /* XXX */
st->codec.codec_type=CODEC_TYPE_VIDEO; /* force things */
st->codec.codec_id = CODEC_ID_MPEG4;
- st->codec.frame_rate = 25;
+ st->codec.frame_rate = 25 * FRAME_RATE_BASE;
st->codec.bit_rate = 100000;
}
sc->sample_size = get_be32(pb);
entries = get_be32(pb);
sc->sample_count = entries;
+#ifdef DEBUG
printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
+#endif
if(sc->sample_size)
return 0; /* there isn't any table following */
sc->sample_sizes = av_malloc(entries * sizeof(long));
return 0;
}
+static int parse_stts(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ int entries, i;
+ AVStream *st;
+ MOVStreamContext *sc;
+#ifdef DEBUG
+ print_atom("stts", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+ st = c->fc->streams[c->fc->nb_streams-1];
+ sc = (MOVStreamContext *)st->priv_data;
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+ entries = get_be32(pb);
+ for(i=0; i<entries; i++) {
+ int sample_duration;
+
+ get_be32(pb);
+ sample_duration = get_be32(pb);
+
+ if (!i && st->codec.codec_type==CODEC_TYPE_VIDEO) {
+ st->codec.frame_rate = FRAME_RATE_BASE * c->streams[c->total_streams]->time_scale / sample_duration;
+#ifdef DEBUG
+ printf("VIDEO FRAME RATE= %li (sd= %li)\n", st->codec.frame_rate, sample_duration);
+#endif
+ }
+ }
+ return 0;
+}
+
+#ifdef CONFIG_ZLIB
+static int null_read_packet(void *opaque, UINT8 *buf, int buf_size)
+{
+ return -1;
+}
+
+static int parse_cmov(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ ByteIOContext ctx;
+ char *cmov_data;
+ unsigned char *moov_data; /* uncompressed data */
+ long cmov_len, moov_len;
+ int ret;
+#ifdef DEBUG
+ print_atom("cmov", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+
+ get_be32(pb); /* dcom atom */
+ if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
+ return -1;
+ if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
+ puts("unknown compression for cmov atom !");
+ return -1;
+ }
+ get_be32(pb); /* cmvd atom */
+ if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
+ return -1;
+ moov_len = get_be32(pb); /* uncompressed size */
+ cmov_len = atom_size - 6 * 4;
+
+ cmov_data = av_malloc(cmov_len);
+ if (!cmov_data)
+ return -1;
+ moov_data = av_malloc(moov_len);
+ if (!moov_data) {
+ av_free(cmov_data);
+ return -1;
+ }
+ get_buffer(pb, cmov_data, cmov_len);
+ if(uncompress (moov_data, &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
+ return -1;
+ if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, null_read_packet, NULL, NULL) != 0)
+ return -1;
+ ctx.buf_end = ctx.buffer + moov_len;
+ ret = parse_default(parse_table, &ctx, MKTAG( 'm', 'o', 'o', 'v' ), 0, moov_len, param);
+ av_free(moov_data);
+ av_free(cmov_data);
+ return ret;
+}
+#endif
+
static const MOVParseTableEntry mov_default_parse_table[] = {
/* mp4 atoms */
{ MKTAG( 'm', 'p', '4', 'a' ), parse_default },
{ MKTAG( 'm', 'p', '4', 's' ), parse_default },
{ MKTAG( 'm', 'd', 'i', 'a' ), parse_default },
{ MKTAG( 'm', 'd', 'a', 't' ), parse_mdat },
-{ MKTAG( 'm', 'd', 'h', 'd' ), parse_leaf },
+{ MKTAG( 'm', 'd', 'h', 'd' ), parse_mdhd },
{ MKTAG( 'm', 'i', 'n', 'f' ), parse_default },
{ MKTAG( 'm', 'o', 'o', 'v' ), parse_moov },
{ MKTAG( 'm', 'v', 'h', 'd' ), parse_mvhd },
{ MKTAG( 's', 'm', 'h', 'd' ), parse_leaf },
{ MKTAG( 'd', 'p', 'n', 'd' ), parse_leaf },
{ MKTAG( 's', 't', 's', 's' ), parse_leaf },
-{ MKTAG( 's', 't', 't', 's' ), parse_leaf },
+{ MKTAG( 's', 't', 't', 's' ), parse_stts },
{ MKTAG( 't', 'r', 'a', 'k' ), parse_trak },
{ MKTAG( 't', 'k', 'h', 'd' ), parse_tkhd },
{ MKTAG( 't', 'r', 'e', 'f' ), parse_default }, /* not really */
{ MKTAG( 's', 's', 'r', 'c' ), parse_leaf },
{ MKTAG( 't', 'c', 'm', 'd' ), parse_leaf },
{ MKTAG( 'w', 'i', 'd', 'e' ), parse_leaf }, /* place holder */
+#ifdef CONFIG_ZLIB
+{ MKTAG( 'c', 'm', 'o', 'v' ), parse_cmov },
+#else
+{ MKTAG( 'c', 'm', 'o', 'v' ), parse_leaf },
+#endif
{ 0L, parse_leaf }
};
return 0;
if ((p->buf[4] == 'm' && p->buf[5] == 'o' &&
p->buf[6] == 'o' && p->buf[7] == 'v') ||
+ (p->buf[4] == 'w' && p->buf[5] == 'i' &&
+ p->buf[6] == 'd' && p->buf[7] == 'e') ||
+ (p->buf[4] == 'f' && p->buf[5] == 'r' &&
+ p->buf[6] == 'e' && p->buf[7] == 'e') ||
(p->buf[4] == 'm' && p->buf[5] == 'd' &&
p->buf[6] == 'a' && p->buf[7] == 't'))
return AVPROBE_SCORE_MAX;
{ CODEC_ID_PCM_U8, 0x01 }, /* must come after s16le in this list */
{ CODEC_ID_PCM_ALAW, 0x06 },
{ CODEC_ID_PCM_MULAW, 0x07 },
+ { CODEC_ID_ADPCM_MS, 0x02 },
+ { CODEC_ID_ADPCM_IMA_WAV, 0x11 },
{ 0, 0 },
};
if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3LAME) {
blkalign = 1;
//blkalign = 144 * enc->bit_rate/enc->sample_rate;
+ } else if (enc->block_align != 0) { /* specified by the codec */
+ blkalign = enc->block_align;
} else
blkalign = enc->channels*bps >> 3;
if (enc->codec_id == CODEC_ID_PCM_U8 ||
unsigned int tag;
ByteIOContext *pb = &s->pb;
unsigned int id, channels, rate, bit_rate, extra_size, bps;
+ unsigned int blkalign;
AVStream *st;
/* check RIFF header */
channels = get_le16(pb);
rate = get_le32(pb);
bit_rate = get_le32(pb) * 8;
- get_le16(pb); /* block align */
+ blkalign = get_le16(pb); /* block align */
bps = get_le16(pb); /* bits per sample */
if (size >= 18) {
/* wav_extra_size */
st->codec.codec_id = wav_codec_get_id(id, bps);
st->codec.channels = channels;
st->codec.sample_rate = rate;
+ st->codec.block_align = blkalign;
return 0;
}
mpegaudio.o ac3enc.o mjpeg.o resample.o dsputil.o \
motion_est.o imgconvert.o imgresample.o msmpeg4.o \
mpeg12.o h263dec.o svq1.o rv10.o mpegaudiodec.o pcm.o simple_idct.o \
- ratecontrol.o
+ ratecontrol.o adpcm.o
ASM_OBJS=
# currently using liba52 for ac3 decoding
--- /dev/null
+/*
+ * ADPCM codecs
+ * Copyright (c) 2001 Fabrice Bellard.
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "avcodec.h"
+
+/*
+ * First version by Francois Revol revol@free.fr
+ *
+ * Features and limitations:
+ *
+ * Reference documents:
+ * http://www.pcisys.net/~melanson/codecs/adpcm.txt
+ * http://www.geocities.com/SiliconValley/8682/aud3.txt
+ * http://openquicktime.sourceforge.net/plugins.htm
+ * XAnim sources (xa_codec.c) http://www.rasnaimaging.com/people/lapus/download.html
+ */
+
+#define BLKSIZE 1024
+
+#define CLAMP_TO_SHORT(value) \
+if (value > 32767) \
+ value = 32767; \
+else if (value < -32768) \
+ value = -32768; \
+
+/* step_table[] and index_table[] are from the ADPCM reference source */
+/* This is the index table: */
+static int index_table[16] = {
+ -1, -1, -1, -1, 2, 4, 6, 8,
+ -1, -1, -1, -1, 2, 4, 6, 8,
+};
+
+/* This is the step table. Note that many programs use slight deviations from
+ * this table, but such deviations are negligible:
+ */
+static int step_table[89] = {
+ 7, 8, 9, 10, 11, 12, 13, 14, 16, 17,
+ 19, 21, 23, 25, 28, 31, 34, 37, 41, 45,
+ 50, 55, 60, 66, 73, 80, 88, 97, 107, 118,
+ 130, 143, 157, 173, 190, 209, 230, 253, 279, 307,
+ 337, 371, 408, 449, 494, 544, 598, 658, 724, 796,
+ 876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066,
+ 2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358,
+ 5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
+ 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767
+};
+
+/* AdaptationTable[], AdaptCoeff1[], and AdaptCoeff2[] are from libsndfile */
+static int AdaptationTable[] = {
+ 230, 230, 230, 230, 307, 409, 512, 614,
+ 768, 614, 512, 409, 307, 230, 230, 230
+};
+
+static int AdaptCoeff1[] = {
+ 256, 512, 0, 192, 240, 460, 392
+};
+
+static int AdaptCoeff2[] = {
+ 0, -256, 0, 64, 0, -208, -232
+};
+
+/* end of tables */
+
+typedef struct ADPCMChannelStatus {
+ int predictor;
+ short int step_index;
+ int step;
+
+ /* MS version */
+ short sample1;
+ short sample2;
+ int coeff1;
+ int coeff2;
+ int idelta;
+} ADPCMChannelStatus;
+
+typedef struct ADPCMContext {
+ int channel; /* for stereo MOVs, decode left, then decode right, then tell it's decoded */
+ ADPCMChannelStatus status[2];
+ short sample_buffer[32]; /* hold left samples while waiting for right samples */
+} ADPCMContext;
+
+/* XXX: implement encoding */
+
+static int adpcm_encode_init(AVCodecContext *avctx)
+{
+ switch(avctx->codec->id) {
+ case CODEC_ID_ADPCM_IMA_QT:
+ avctx->frame_size = 64; /* XXX: ??? */
+ break;
+ case CODEC_ID_ADPCM_IMA_WAV:
+ avctx->frame_size = 64; /* XXX: ??? */
+ break;
+ default:
+ avctx->frame_size = 1;
+ break;
+ }
+ return 0;
+}
+
+static int adpcm_encode_close(AVCodecContext *avctx)
+{
+ switch(avctx->codec->id) {
+ default:
+ /* nothing to free */
+ break;
+ }
+ return 0;
+}
+
+static int adpcm_encode_frame(AVCodecContext *avctx,
+ unsigned char *frame, int buf_size, void *data)
+{
+ int n, sample_size, v;
+ short *samples;
+ unsigned char *dst;
+
+ switch(avctx->codec->id) {
+ default:
+ return -1;
+ }
+ avctx->key_frame = 1;
+ //avctx->frame_size = (dst - frame) / (sample_size * avctx->channels);
+
+ return dst - frame;
+}
+
+static int adpcm_decode_init(AVCodecContext * avctx)
+{
+ ADPCMContext *c = avctx->priv_data;
+
+ c->channel = 0;
+ c->status[0].predictor = c->status[1].predictor = 0;
+ c->status[0].step_index = c->status[1].step_index = 0;
+ c->status[0].step = c->status[1].step = 0;
+
+ switch(avctx->codec->id) {
+ default:
+ break;
+ }
+ return 0;
+}
+
+static inline short adpcm_ima_expand_nibble(ADPCMChannelStatus *c, char nibble)
+{
+ int step_index;
+ int predictor;
+ int sign, delta, diff, step;
+
+ predictor = c->predictor;
+ step_index = c->step_index + index_table[(unsigned)nibble];
+ if (step_index < 0) step_index = 0;
+ if (step_index > 88) step_index = 88;
+
+ step = c->step;
+
+/*
+ diff = ((signed)((nibble & 0x08)?(nibble | 0xF0):(nibble)) + 0.5) * step / 4;
+ predictor += diff;
+*/
+ sign = nibble & 8;
+ delta = nibble & 7;
+ diff = step >> 3;
+ if (delta & 4) diff += step;
+ if (delta & 2) diff += step >> 1;
+ if (delta & 1) diff += step >> 2;
+ if (sign) predictor -= diff;
+ else predictor += diff;
+
+ CLAMP_TO_SHORT(predictor);
+ c->predictor = predictor;
+ c->step_index = step_index;
+ c->step = step_table[step_index];
+
+ return (short)predictor;
+}
+
+static inline short adpcm_ms_expand_nibble(ADPCMChannelStatus *c, char nibble)
+{
+ int predictor;
+
+ predictor = (((c->sample1) * (c->coeff1)) + ((c->sample2) * (c->coeff2))) / 256;
+ predictor += (signed)((nibble & 0x08)?(nibble - 0x10):(nibble)) * c->idelta;
+ CLAMP_TO_SHORT(predictor);
+
+ c->sample2 = c->sample1;
+ c->sample1 = predictor;
+ c->idelta = (AdaptationTable[(int)nibble] * c->idelta) / 256;
+ if (c->idelta < 16) c->idelta = 16;
+
+ return (short)predictor;
+}
+
+static int adpcm_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ UINT8 *buf, int buf_size)
+{
+ ADPCMContext *c = avctx->priv_data;
+ ADPCMChannelStatus *cs;
+ int n, m, channel;
+ int block_predictor[2];
+ short *samples;
+ UINT8 *src;
+ int st; /* stereo */
+
+ samples = data;
+ src = buf;
+
+//printf("adpcm_decode_frame() buf_size=%i\n", buf_size);
+
+ st = avctx->channels == 2;
+
+ switch(avctx->codec->id) {
+ case CODEC_ID_ADPCM_IMA_QT:
+ n = (buf_size - 2);/* >> 2*avctx->channels;*/
+ channel = c->channel;
+ cs = &(c->status[channel]);
+ /* (pppppp) (piiiiiii) */
+
+ /* Bits 15-7 are the _top_ 9 bits of the 16-bit initial predictor value */
+ cs->predictor = (*src++) << 8;
+ cs->predictor |= (*src & 0x80);
+ cs->predictor &= 0xFF80;
+
+ /* sign extension */
+ if(cs->predictor & 0x8000)
+ cs->predictor -= 0x10000;
+
+ CLAMP_TO_SHORT(cs->predictor);
+
+ cs->step_index = (*src++) & 0x7F;
+
+if (cs->step_index > 88) printf("ERROR: step_index = %i\n", cs->step_index);
+ if (cs->step_index > 88) cs->step_index = 88;
+
+ cs->step = step_table[cs->step_index];
+
+ if (st && channel)
+ samples++;
+
+ for(m=32; n>0 && m>0; n--, m--) { /* in QuickTime, IMA is encoded by chuncks of 34 bytes (=64 samples) */
+ *samples = adpcm_ima_expand_nibble(cs, src[0] & 0x0F);
+ samples += avctx->channels;
+ *samples = adpcm_ima_expand_nibble(cs, (src[0] >> 4) & 0x0F);
+ samples += avctx->channels;
+ src ++;
+ }
+
+ if(st) { /* handle stereo interlacing */
+ c->channel = (channel + 1) % 2; /* we get one packet for left, then one for right data */
+ if(channel == 0) { /* wait for the other packet before outputing anything */
+ *data_size = 0;
+ return src - buf;
+ }
+ }
+ break;
+ case CODEC_ID_ADPCM_IMA_WAV:
+ if (buf_size > BLKSIZE) {
+ if (avctx->block_align != 0)
+ buf_size = avctx->block_align;
+ else
+ buf_size = BLKSIZE;
+ }
+ n = buf_size - 4 * avctx->channels;
+ cs = &(c->status[0]);
+ cs->predictor = (*src++) & 0x0FF;
+ cs->predictor |= ((*src++) << 8) & 0x0FF00;
+ if(cs->predictor & 0x8000)
+ cs->predictor -= 0x10000;
+ CLAMP_TO_SHORT(cs->predictor);
+
+ cs->step_index = *src++;
+ if (cs->step_index < 0) cs->step_index = 0;
+ if (cs->step_index > 88) cs->step_index = 88;
+ if (*src++) puts("unused byte should be null !!"); /* unused */
+ if (st) {
+ cs = &(c->status[1]);
+ cs->predictor = (*src++) & 0x0FF;
+ cs->predictor |= ((*src++) << 8) & 0x0FF00;
+ if(cs->predictor & 0x8000)
+ cs->predictor -= 0x10000;
+ CLAMP_TO_SHORT(cs->predictor);
+
+ cs->step_index = *src++;
+ if (cs->step_index < 0) cs->step_index = 0;
+ if (cs->step_index > 88) cs->step_index = 88;
+ src++; /* unused */
+ }
+ cs = &(c->status[0]);
+
+
+ for(m=3; n>0; n--, m--) {
+ *samples++ = adpcm_ima_expand_nibble(&c->status[0], src[0] & 0x0F);
+ if (st)
+ *samples++ = adpcm_ima_expand_nibble(&c->status[1], src[4] & 0x0F);
+ *samples++ = adpcm_ima_expand_nibble(&c->status[0], (src[0] >> 4) & 0x0F);
+ if (st)
+ *samples++ = adpcm_ima_expand_nibble(&c->status[1], (src[4] >> 4) & 0x0F);
+ src ++;
+ if (st && !m) {
+ m=3;
+ src+=4;
+ }
+ }
+ break;
+ case CODEC_ID_ADPCM_MS:
+
+ if (buf_size > BLKSIZE) {
+ if (avctx->block_align != 0)
+ buf_size = avctx->block_align;
+ else
+ buf_size = BLKSIZE;
+ }
+ n = buf_size - 7 * avctx->channels;
+ if (n < 0)
+ return -1;
+ block_predictor[0] = (*src++); /* should be bound */
+ block_predictor[0] = (block_predictor[0] < 0)?(0):((block_predictor[0] > 7)?(7):(block_predictor[0]));
+ block_predictor[1] = 0;
+ if (st)
+ block_predictor[1] = (*src++);
+ block_predictor[1] = (block_predictor[1] < 0)?(0):((block_predictor[1] > 7)?(7):(block_predictor[1]));
+ c->status[0].idelta = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
+ if (c->status[0].idelta & 0x08000)
+ c->status[0].idelta -= 0x10000;
+ src+=2;
+ if (st)
+ c->status[1].idelta = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
+ if (st && c->status[1].idelta & 0x08000)
+ c->status[1].idelta |= 0xFFFF0000;
+ if (st)
+ src+=2;
+ c->status[0].coeff1 = AdaptCoeff1[block_predictor[0]];
+ c->status[0].coeff2 = AdaptCoeff2[block_predictor[0]];
+ c->status[1].coeff1 = AdaptCoeff1[block_predictor[1]];
+ c->status[1].coeff2 = AdaptCoeff2[block_predictor[1]];
+
+ c->status[0].sample1 = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
+ src+=2;
+ if (st) c->status[1].sample1 = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
+ if (st) src+=2;
+ c->status[0].sample2 = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
+ src+=2;
+ if (st) c->status[1].sample2 = ((*src & 0xFF) | ((src[1] << 8) & 0xFF00));
+ if (st) src+=2;
+
+ *samples++ = c->status[0].sample1;
+ if (st) *samples++ = c->status[1].sample1;
+ *samples++ = c->status[0].sample2;
+ if (st) *samples++ = c->status[1].sample2;
+ for(;n>0;n--) {
+ *samples++ = adpcm_ms_expand_nibble(&c->status[0], (src[0] >> 4) & 0x0F);
+ *samples++ = adpcm_ms_expand_nibble(&c->status[st], src[0] & 0x0F);
+ src ++;
+ }
+ break;
+ default:
+ *data_size = 0;
+ return -1;
+ }
+ *data_size = (UINT8 *)samples - (UINT8 *)data;
+ return src - buf;
+}
+
+#define ADPCM_CODEC(id, name) \
+AVCodec name ## _encoder = { \
+ #name, \
+ CODEC_TYPE_AUDIO, \
+ id, \
+ sizeof(ADPCMContext), \
+ adpcm_encode_init, \
+ adpcm_encode_frame, \
+ adpcm_encode_close, \
+ NULL, \
+}; \
+AVCodec name ## _decoder = { \
+ #name, \
+ CODEC_TYPE_AUDIO, \
+ id, \
+ sizeof(ADPCMContext), \
+ adpcm_decode_init, \
+ NULL, \
+ NULL, \
+ adpcm_decode_frame, \
+};
+
+ADPCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
+ADPCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
+ADPCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
+
+#undef ADPCM_CODEC
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
+ /* adpcm codecs */
+PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
+PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
+PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
+
#undef PCM_CODEC
}
#define LIBAVCODEC_VERSION_INT 0x000406
#define LIBAVCODEC_VERSION "0.4.6"
-#define LIBAVCODEC_BUILD 4617
-#define LIBAVCODEC_BUILD_STR "4617"
+#define LIBAVCODEC_BUILD 4618
+#define LIBAVCODEC_BUILD_STR "4618"
enum CodecID {
CODEC_ID_NONE,
CODEC_ID_PCM_U8,
CODEC_ID_PCM_MULAW,
CODEC_ID_PCM_ALAW,
+
+ /* various adpcm codecs */
+ CODEC_ID_ADPCM_IMA_QT,
+ CODEC_ID_ADPCM_IMA_WAV,
+ CODEC_ID_ADPCM_MS,
};
#define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
int has_b_frames; // is 1 if the decoded stream contains b frames
int dr_uvstride;
int dr_ip_buffer_count;
+ int block_align; /* currently only for adpcm codec in wav/avi */
//FIXME this should be reordered after kabis API is finished ...
/*
ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
unsigned int
- ui_res0,ui_res1,ui_res2;
+ ui_res0,ui_res1;
unsigned short int
us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
+/* adpcm codecs */
+
+PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
+PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
+PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
+
#undef PCM_CODEC
/* dummy raw video codec */
projects / platform / upstream / libav.git / commitdiff