From aaf805f67d1117459501b962b230593d2943c065 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 3 Mar 2007 21:00:40 +0000 Subject: [PATCH] functional part of the commit below ===== Author: bcoudurier Date: Sat Mar 3 15:33:55 2007 New Revision: 8204 Modified: trunk/libavformat/mov.c Log: cosmetics, cleanup tables, add pcm 24/32 le tags Originally committed as revision 8207 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/mov.c.tmp | 1786 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1786 insertions(+) create mode 100644 libavformat/mov.c.tmp diff --git a/libavformat/mov.c.tmp b/libavformat/mov.c.tmp new file mode 100644 index 0000000..bd1f30f --- /dev/null +++ b/libavformat/mov.c.tmp @@ -0,0 +1,1786 @@ +/* + * MOV demuxer + * Copyright (c) 2001 Fabrice Bellard. + * + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include + +//#define DEBUG + +#include "avformat.h" +#include "riff.h" +#include "isom.h" +#include "dv.h" + +#ifdef CONFIG_ZLIB +#include +#endif + +/* + * First version by Francois Revol revol@free.fr + * Seek function by Gael Chardon gael.dev@4now.net + * + * 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 + * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes + * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at + * http://mpeg.telecomitalialab.com/faq.htm + * - the code is quite ugly... maybe I won't do it recursive next time :-) + * - seek is not supported with files that contain edit list + * + * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/ + * when coding this :) (it's a writer anyway) + * + * Reference documents: + * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt + * Apple: + * http://developer.apple.com/documentation/QuickTime/QTFF/ + * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf + * QuickTime is a trademark of Apple (AFAIK :)) + */ + +#include "qtpalette.h" + + +#undef NDEBUG +#include + +static const AVCodecTag mov_video_tags[] = { +/* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */ + { CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */ +/* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */ + { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */ +/* Graphics */ +/* Animation */ +/* Apple video */ +/* Kodak Photo CD */ + { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */ + { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */ + { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */ + { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */ + { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */ +/* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */ + { 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_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/ + { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */ + { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, + { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */ + { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, + { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */ +/* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */ + { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */ + { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */ + { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */ + { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */ + { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */ + { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */ + { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */ + { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */ + { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */ + { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */ + { CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') }, + { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */ + { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */ + { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 produced by Sony HD camera */ + { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* HDV produced by FCP */ + { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */ + { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */ + { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */ + { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */ + { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */ + { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'n') }, /* AVID IMX NTSC */ + { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */ + //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */ + //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */ + { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */ + { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */ + { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */ + //{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */ + { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */ + { CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */ + { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */ + { CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */ + { CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') }, + { CODEC_ID_NONE, 0 }, +}; + +static const AVCodecTag mov_audio_tags[] = { + { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') }, + { CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') }, + { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') }, + { CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') }, + { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */ + { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */ + { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */ + { 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_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */ + { CODEC_ID_ADPCM_MS, MKTAG('m', 's', 0x00, 0x02) }, /* MS ADPCM */ + { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */ + { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */ + + { CODEC_ID_MP3, 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 */ + { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */ +/* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */ +/* MP4 tags */ + { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */ + /* The standard for mpeg4 audio is still not normalised AFAIK anyway */ + { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */ + { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */ + { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */ + { CODEC_ID_ALAC,MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */ + { CODEC_ID_QDM2,MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */ + { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') }, + { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') }, + { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') }, + { CODEC_ID_NONE, 0 }, +}; + +/* the QuickTime file format is quite convoluted... + * it has lots of index tables, each indexing something in another one... + * Here we just use what is needed to read the chunks + */ + +typedef struct MOV_sample_to_chunk_tbl { + long first; + long count; + long id; +} MOV_sample_to_chunk_tbl; + +typedef struct { + uint32_t type; + int64_t offset; + int64_t size; /* total size (excluding the size and type fields) */ +} MOV_atom_t; + +typedef struct { + int seed; + int flags; + int size; + void* clrs; +} MOV_ctab_t; + +typedef struct MOV_mdat_atom_s { + offset_t offset; + int64_t size; +} MOV_mdat_atom_t; + +typedef struct { + uint8_t version; + uint32_t flags; // 24bit + + /* 0x03 ESDescrTag */ + uint16_t es_id; +#define MP4ODescrTag 0x01 +#define MP4IODescrTag 0x02 +#define MP4ESDescrTag 0x03 +#define MP4DecConfigDescrTag 0x04 +#define MP4DecSpecificDescrTag 0x05 +#define MP4SLConfigDescrTag 0x06 +#define MP4ContentIdDescrTag 0x07 +#define MP4SupplContentIdDescrTag 0x08 +#define MP4IPIPtrDescrTag 0x09 +#define MP4IPMPPtrDescrTag 0x0A +#define MP4IPMPDescrTag 0x0B +#define MP4RegistrationDescrTag 0x0D +#define MP4ESIDIncDescrTag 0x0E +#define MP4ESIDRefDescrTag 0x0F +#define MP4FileIODescrTag 0x10 +#define MP4FileODescrTag 0x11 +#define MP4ExtProfileLevelDescrTag 0x13 +#define MP4ExtDescrTagsStart 0x80 +#define MP4ExtDescrTagsEnd 0xFE + uint8_t stream_priority; + + /* 0x04 DecConfigDescrTag */ + uint8_t object_type_id; + uint8_t stream_type; + /* XXX: really streamType is + * only 6bit, followed by: + * 1bit upStream + * 1bit reserved + */ + uint32_t buffer_size_db; // 24 + uint32_t max_bitrate; + uint32_t avg_bitrate; + + /* 0x05 DecSpecificDescrTag */ + uint8_t decoder_cfg_len; + uint8_t *decoder_cfg; + + /* 0x06 SLConfigDescrTag */ + uint8_t sl_config_len; + uint8_t *sl_config; +} MOV_esds_t; + +struct MOVParseTableEntry; + +typedef struct MOVStreamContext { + int ffindex; /* the ffmpeg stream id */ + long next_chunk; + unsigned int chunk_count; + int64_t *chunk_offsets; + unsigned int stts_count; + Time2Sample *stts_data; + unsigned int ctts_count; + Time2Sample *ctts_data; + unsigned int edit_count; /* number of 'edit' (elst atom) */ + unsigned int sample_to_chunk_sz; + MOV_sample_to_chunk_tbl *sample_to_chunk; + int sample_to_ctime_index; + int sample_to_ctime_sample; + unsigned int sample_size; + unsigned int sample_count; + long *sample_sizes; + unsigned int keyframe_count; + long *keyframes; + int time_scale; + int time_rate; + long current_sample; + MOV_esds_t esds; + AVRational sample_size_v1; + int dv_audio_container; +} MOVStreamContext; + +typedef struct MOVContext { + AVFormatContext *fc; + int time_scale; + int64_t duration; /* duration of the longest track */ + int found_moov; /* when both 'moov' and 'mdat' sections has been found */ + int found_mdat; /* we suppose we have enough data to read the file */ + int64_t mdat_offset; + int total_streams; + MOVStreamContext *streams[MAX_STREAMS]; + + int ctab_size; + MOV_ctab_t **ctab; /* color tables */ + const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */ + /* NOTE: for recursion save to/ restore from local variable! */ + + AVPaletteControl palette_control; + MOV_mdat_atom_t *mdat_list; + int mdat_count; + DVDemuxContext *dv_demux; + AVFormatContext *dv_fctx; + int isom; /* 1 if file is ISO Media (mp4/3gp) */ +} MOVContext; + + +/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */ + +/* those functions parse an atom */ +/* return code: + 1: found what I wanted, exit + 0: continue to parse next atom + -1: error occured, exit + */ +typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom); + +/* links atom IDs to parse functions */ +typedef struct MOVParseTableEntry { + uint32_t type; + mov_parse_function func; +} MOVParseTableEntry; + +static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + int64_t total_size = 0; + MOV_atom_t a; + int i; + int err = 0; + + a.offset = atom.offset; + + if (atom.size < 0) + atom.size = 0x7fffffffffffffffLL; + while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) { + a.size = atom.size; + a.type=0L; + if(atom.size >= 8) { + a.size = get_be32(pb); + a.type = get_le32(pb); + } + total_size += 8; + a.offset += 8; + dprintf("type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n", a.type, (char*)&a.type, a.size, atom.size, total_size); + if (a.size == 1) { /* 64 bit extended size */ + a.size = get_be64(pb) - 8; + a.offset += 8; + total_size += 8; + } + if (a.size == 0) { + a.size = atom.size - total_size; + if (a.size <= 8) + break; + } + for (i = 0; c->parse_table[i].type != 0L + && c->parse_table[i].type != a.type; i++) + /* empty */; + + a.size -= 8; + + if(a.size < 0) + break; + + if (c->parse_table[i].type == 0) { /* skip leaf atoms data */ + url_fskip(pb, a.size); + } else { + offset_t start_pos = url_ftell(pb); + int64_t left; + err = (c->parse_table[i].func)(c, pb, a); + left = a.size - url_ftell(pb) + start_pos; + if (left > 0) /* skip garbage at atom end */ + url_fskip(pb, left); + } + + a.offset += a.size; + total_size += a.size; + } + + if (!err && total_size < atom.size && atom.size < 0x7ffff) { + url_fskip(pb, atom.size - total_size); + } + + return err; +} + +static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ +#if 1 + url_fskip(pb, atom.size); // for now +#else + VERY VERY BROKEN, NEVER execute this, needs rewrite + unsigned int len; + MOV_ctab_t *t; + c->ctab = av_realloc(c->ctab, ++c->ctab_size); + t = c->ctab[c->ctab_size]; + t->seed = get_be32(pb); + t->flags = get_be16(pb); + t->size = get_be16(pb) + 1; + len = 2 * t->size * 4; + if (len > 0) { + t->clrs = av_malloc(len); // 16bit A R G B + if (t->clrs) + get_buffer(pb, t->clrs, len); + } +#endif + + return 0; +} + +static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + uint32_t type; + uint32_t ctype; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + + /* component type */ + ctype = get_le32(pb); + type = get_le32(pb); /* component subtype */ + + dprintf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype); + dprintf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]); + if(!ctype) + c->isom = 1; + 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(type == MKTAG('m', '1', 'a', ' ')) + st->codec->codec_id = CODEC_ID_MP2; + else if(type == MKTAG('s', 'u', 'b', 'p')) { + st->codec->codec_type = CODEC_TYPE_SUBTITLE; + st->codec->codec_id = CODEC_ID_DVD_SUBTITLE; + } + get_be32(pb); /* component manufacture */ + get_be32(pb); /* component flags */ + get_be32(pb); /* component flags mask */ + + if(atom.size <= 24) + return 0; /* nothing left to read */ + + url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset)); + return 0; +} + +static int mov_mp4_read_descr_len(ByteIOContext *pb) +{ + int len = 0; + int count = 4; + while (count--) { + int c = get_byte(pb); + len = (len << 7) | (c & 0x7f); + if (!(c & 0x80)) + break; + } + return len; +} + +static int mov_mp4_read_descr(ByteIOContext *pb, int *tag) +{ + int len; + *tag = get_byte(pb); + len = mov_mp4_read_descr_len(pb); + dprintf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len); + return len; +} + +static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + int tag, len; + + /* Well, broken but suffisant for some MP4 streams */ + get_be32(pb); /* version + flags */ + len = mov_mp4_read_descr(pb, &tag); + if (tag == MP4ESDescrTag) { + get_be16(pb); /* ID */ + get_byte(pb); /* priority */ + } else + get_be16(pb); /* ID */ + + len = mov_mp4_read_descr(pb, &tag); + if (tag == MP4DecConfigDescrTag) { + sc->esds.object_type_id = get_byte(pb); + sc->esds.stream_type = get_byte(pb); + sc->esds.buffer_size_db = get_be24(pb); + sc->esds.max_bitrate = get_be32(pb); + sc->esds.avg_bitrate = get_be32(pb); + + st->codec->codec_id= codec_get_id(ff_mov_obj_type, sc->esds.object_type_id); + dprintf("esds object type id %d\n", sc->esds.object_type_id); + len = mov_mp4_read_descr(pb, &tag); + if (tag == MP4DecSpecificDescrTag) { + dprintf("Specific MPEG4 header len=%d\n", len); + st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE); + if (st->codec->extradata) { + get_buffer(pb, st->codec->extradata, len); + st->codec->extradata_size = len; + /* from mplayer */ + if ((*st->codec->extradata >> 3) == 29) { + st->codec->codec_id = CODEC_ID_MP3ON4; + } + } + } + } + return 0; +} + +/* this atom contains actual media data */ +static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + if(atom.size == 0) /* wrong one (MP4) */ + return 0; + c->mdat_list = av_realloc(c->mdat_list, (c->mdat_count + 1) * sizeof(*c->mdat_list)); + c->mdat_list[c->mdat_count].offset = atom.offset; + c->mdat_list[c->mdat_count].size = atom.size; + c->mdat_count++; + c->found_mdat=1; + c->mdat_offset = atom.offset; + if(c->found_moov) + return 1; /* found both, just go */ + url_fskip(pb, atom.size); + return 0; /* now go for moov */ +} + +static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + uint32_t type = get_le32(pb); + + if (type != MKTAG('q','t',' ',' ')) + c->isom = 1; + av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type); + get_be32(pb); /* minor version */ + url_fskip(pb, atom.size - 8); + return 0; +} + +/* this atom should contain all header atoms */ +static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + int err; + + err = mov_read_default(c, pb, atom); + /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */ + /* so we don't parse the whole file if over a network */ + c->found_moov=1; + if(c->found_mdat) + return 1; /* found both, just go */ + return 0; /* now go for mdat */ +} + + +static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + int version = get_byte(pb); + int lang; + + if (version > 1) + return 1; /* unsupported */ + + get_byte(pb); get_byte(pb); + get_byte(pb); /* flags */ + + if (version == 1) { + get_be64(pb); + get_be64(pb); + } else { + get_be32(pb); /* creation time */ + get_be32(pb); /* modification time */ + } + + sc->time_scale = get_be32(pb); + st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */ + + lang = get_be16(pb); /* language */ + ff_mov_lang_to_iso639(lang, st->language); + get_be16(pb); /* quality */ + + return 0; +} + +static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + int version = get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + + if (version == 1) { + get_be64(pb); + get_be64(pb); + } else { + get_be32(pb); /* creation time */ + get_be32(pb); /* modification time */ + } + c->time_scale = get_be32(pb); /* time scale */ +#ifdef DEBUG + av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale); +#endif + c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */ + get_be32(pb); /* preferred scale */ + + get_be16(pb); /* preferred volume */ + + url_fskip(pb, 10); /* reserved */ + + url_fskip(pb, 36); /* display matrix */ + + get_be32(pb); /* preview time */ + get_be32(pb); /* preview duration */ + get_be32(pb); /* poster time */ + get_be32(pb); /* selection time */ + get_be32(pb); /* selection duration */ + get_be32(pb); /* current time */ + get_be32(pb); /* next track ID */ + + return 0; +} + +static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + + if((uint64_t)atom.size > (1<<30)) + return -1; + + // currently SVQ3 decoder expect full STSD header - so let's fake it + // this should be fixed and just SMI header should be passed + av_free(st->codec->extradata); + st->codec->extradata_size = 0x5a + atom.size; + st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + + if (st->codec->extradata) { + memcpy(st->codec->extradata, "SVQ3", 4); // fake + get_buffer(pb, st->codec->extradata + 0x5a, atom.size); + dprintf("Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a); + } else + url_fskip(pb, atom.size); + + return 0; +} + +static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + int little_endian = get_be16(pb); + + if (little_endian) { + switch (st->codec->codec_id) { + case CODEC_ID_PCM_S24BE: + st->codec->codec_id = CODEC_ID_PCM_S24LE; + break; + case CODEC_ID_PCM_S32BE: + st->codec->codec_id = CODEC_ID_PCM_S32LE; + break; + default: + break; + } + } + return 0; +} + +/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */ +static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + if((uint64_t)atom.size > (1<<30)) + return -1; + av_free(st->codec->extradata); + st->codec->extradata_size = atom.size + 8; + st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + if (st->codec->extradata) { + AV_WL32(st->codec->extradata + 4, atom.type); + get_buffer(pb, st->codec->extradata + 8, atom.size); + } else + url_fskip(pb, atom.size); + return 0; +} + +static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + + if((uint64_t)atom.size > (1<<30)) + return -1; + + if (st->codec->codec_id == CODEC_ID_QDM2) { + // pass all frma atom to codec, needed at least for QDM2 + av_free(st->codec->extradata); + st->codec->extradata_size = atom.size; + st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + + if (st->codec->extradata) { + get_buffer(pb, st->codec->extradata, atom.size); + } else + url_fskip(pb, atom.size); + } else if (atom.size > 8) { /* to read frma, esds atoms */ + mov_read_default(c, pb, atom); + } else + url_fskip(pb, atom.size); + return 0; +} + +static int mov_read_avcC(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + + if((uint64_t)atom.size > (1<<30)) + return -1; + + av_free(st->codec->extradata); + + st->codec->extradata_size = atom.size; + st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + + if (st->codec->extradata) { + get_buffer(pb, st->codec->extradata, atom.size); + } else + url_fskip(pb, atom.size); + + return 0; +} + +static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + unsigned int i, entries; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + + entries = get_be32(pb); + + if(entries >= UINT_MAX/sizeof(int64_t)) + return -1; + + sc->chunk_count = entries; + sc->chunk_offsets = av_malloc(entries * sizeof(int64_t)); + if (!sc->chunk_offsets) + return -1; + if (atom.type == MKTAG('s', 't', 'c', 'o')) { + for(i=0; ichunk_offsets[i] = get_be32(pb); + } + } else if (atom.type == MKTAG('c', 'o', '6', '4')) { + for(i=0; ichunk_offsets[i] = get_be64(pb); + } + } else + return -1; + + return 0; +} + +static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + int entries, frames_per_sample; + uint32_t format; + uint8_t codec_name[32]; + + /* for palette traversal */ + int color_depth; + int color_start; + int color_count; + int color_end; + int color_index; + int color_dec; + int color_greyscale; + unsigned char *color_table; + int j; + unsigned char r, g, b; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + + entries = get_be32(pb); + + while(entries--) { //Parsing Sample description table + enum CodecID id; + MOV_atom_t a = { 0, 0, 0 }; + offset_t start_pos = url_ftell(pb); + int size = get_be32(pb); /* size */ + format = get_le32(pb); /* data format */ + + get_be32(pb); /* reserved */ + get_be16(pb); /* reserved */ + get_be16(pb); /* index */ + + if (st->codec->codec_tag) { + /* multiple fourcc, just skip for now */ + url_fskip(pb, size - (url_ftell(pb) - start_pos)); + continue; + } + + st->codec->codec_tag = format; + id = codec_get_id(mov_audio_tags, format); + if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) { + st->codec->codec_type = CODEC_TYPE_AUDIO; + } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */ + format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */ + id = codec_get_id(mov_video_tags, format); + if (id <= 0) + id = codec_get_id(codec_bmp_tags, format); + if (id > 0) + st->codec->codec_type = CODEC_TYPE_VIDEO; + } + + dprintf("size=%d 4CC= %c%c%c%c codec_type=%d\n", + size, + (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, (format >> 24) & 0xff, + st->codec->codec_type); + + if(st->codec->codec_type==CODEC_TYPE_VIDEO) { + st->codec->codec_id = id; + get_be16(pb); /* version */ + get_be16(pb); /* revision level */ + get_be32(pb); /* vendor */ + get_be32(pb); /* temporal quality */ + get_be32(pb); /* spacial quality */ + + st->codec->width = get_be16(pb); /* width */ + st->codec->height = get_be16(pb); /* height */ + + get_be32(pb); /* horiz resolution */ + get_be32(pb); /* vert resolution */ + get_be32(pb); /* data size, always 0 */ + frames_per_sample = get_be16(pb); /* frames per samples */ +#ifdef DEBUG + av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample); +#endif + get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */ + if (codec_name[0] <= 31) { + memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]); + st->codec->codec_name[codec_name[0]] = 0; + } + + st->codec->bits_per_sample = get_be16(pb); /* depth */ + st->codec->color_table_id = get_be16(pb); /* colortable id */ + + /* figure out the palette situation */ + color_depth = st->codec->bits_per_sample & 0x1F; + color_greyscale = st->codec->bits_per_sample & 0x20; + + /* if the depth is 2, 4, or 8 bpp, file is palettized */ + if ((color_depth == 2) || (color_depth == 4) || + (color_depth == 8)) { + + if (color_greyscale) { + + /* compute the greyscale palette */ + color_count = 1 << color_depth; + color_index = 255; + color_dec = 256 / (color_count - 1); + for (j = 0; j < color_count; j++) { + r = g = b = color_index; + c->palette_control.palette[j] = + (r << 16) | (g << 8) | (b); + color_index -= color_dec; + if (color_index < 0) + color_index = 0; + } + + } else if (st->codec->color_table_id & 0x08) { + + /* if flag bit 3 is set, use the default palette */ + color_count = 1 << color_depth; + if (color_depth == 2) + color_table = ff_qt_default_palette_4; + else if (color_depth == 4) + color_table = ff_qt_default_palette_16; + else + color_table = ff_qt_default_palette_256; + + for (j = 0; j < color_count; j++) { + r = color_table[j * 4 + 0]; + g = color_table[j * 4 + 1]; + b = color_table[j * 4 + 2]; + c->palette_control.palette[j] = + (r << 16) | (g << 8) | (b); + } + + } else { + + /* load the palette from the file */ + color_start = get_be32(pb); + color_count = get_be16(pb); + color_end = get_be16(pb); + for (j = color_start; j <= color_end; j++) { + /* each R, G, or B component is 16 bits; + * only use the top 8 bits; skip alpha bytes + * up front */ + get_byte(pb); + get_byte(pb); + r = get_byte(pb); + get_byte(pb); + g = get_byte(pb); + get_byte(pb); + b = get_byte(pb); + get_byte(pb); + c->palette_control.palette[j] = + (r << 16) | (g << 8) | (b); + } + } + + st->codec->palctrl = &c->palette_control; + st->codec->palctrl->palette_changed = 1; + } else + st->codec->palctrl = NULL; + } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) { + int bits_per_sample; + uint16_t version = get_be16(pb); + + st->codec->codec_id = id; + get_be16(pb); /* revision level */ + get_be32(pb); /* vendor */ + + st->codec->channels = get_be16(pb); /* channel count */ + dprintf("audio channels %d\n", st->codec->channels); + st->codec->bits_per_sample = get_be16(pb); /* sample size */ + /* do we need to force to 16 for AMR ? */ + + /* handle specific s8 codec */ + get_be16(pb); /* compression id = 0*/ + get_be16(pb); /* packet size = 0 */ + + st->codec->sample_rate = ((get_be32(pb) >> 16)); + + switch (st->codec->codec_id) { + case CODEC_ID_PCM_S8: + case CODEC_ID_PCM_U8: + if (st->codec->bits_per_sample == 16) + st->codec->codec_id = CODEC_ID_PCM_S16BE; + break; + case CODEC_ID_PCM_S16LE: + case CODEC_ID_PCM_S16BE: + if (st->codec->bits_per_sample == 8) + st->codec->codec_id = CODEC_ID_PCM_S8; + else if (st->codec->bits_per_sample == 24) + st->codec->codec_id = CODEC_ID_PCM_S24BE; + break; + default: + break; + } + + //Read QT version 1 fields. In version 0 theese dont exist + dprintf("version =%d, isom =%d\n",version,c->isom); + if(!c->isom) { + if(version==1) { + sc->sample_size_v1.den = get_be32(pb); /* samples per packet */ + get_be32(pb); /* bytes per packet */ + sc->sample_size_v1.num = get_be32(pb); /* bytes per frame */ + get_be32(pb); /* bytes per sample */ + } else if(version==2) { + get_be32(pb); /* sizeof struct only */ + st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */ + st->codec->channels = get_be32(pb); + get_be32(pb); /* always 0x7F000000 */ + get_be32(pb); /* bits per channel if sound is uncompressed */ + get_be32(pb); /* lcpm format specific flag */ + get_be32(pb); /* bytes per audio packet if constant */ + get_be32(pb); /* lpcm frames per audio packet if constant */ + } + } + + bits_per_sample = av_get_bits_per_sample(st->codec->codec_id); + if (bits_per_sample) { + st->codec->bits_per_sample = bits_per_sample; + sc->sample_size = (bits_per_sample >> 3) * st->codec->channels; + } + } else { + /* other codec type, just skip (rtp, mp4s, tmcd ...) */ + url_fskip(pb, size - (url_ftell(pb) - start_pos)); + } + /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */ + a.size = size - (url_ftell(pb) - start_pos); + if (a.size > 8) + mov_read_default(c, pb, a); + else if (a.size > 0) + url_fskip(pb, a.size); + } + + if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) { + st->codec->sample_rate= sc->time_scale; + } + + /* special codec parameters handling */ + switch (st->codec->codec_id) { +#ifdef CONFIG_H261_DECODER + case CODEC_ID_H261: +#endif +#ifdef CONFIG_H263_DECODER + case CODEC_ID_H263: +#endif +#ifdef CONFIG_MPEG4_DECODER + case CODEC_ID_MPEG4: +#endif + st->codec->width= 0; /* let decoder init width/height */ + st->codec->height= 0; + break; +#ifdef CONFIG_LIBFAAD + case CODEC_ID_AAC: +#endif +#ifdef CONFIG_VORBIS_DECODER + case CODEC_ID_VORBIS: +#endif + case CODEC_ID_MP3ON4: + st->codec->sample_rate= 0; /* let decoder init parameters properly */ + break; +#ifdef CONFIG_DV_DEMUXER + case CODEC_ID_DVAUDIO: + c->dv_fctx = av_alloc_format_context(); + c->dv_demux = dv_init_demux(c->dv_fctx); + if (!c->dv_demux) { + av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n"); + return -1; + } + sc->dv_audio_container = 1; + st->codec->codec_id = CODEC_ID_PCM_S16LE; + break; +#endif + /* no ifdef since parameters are always those */ + case CODEC_ID_AMR_WB: + st->codec->sample_rate= 16000; + st->codec->channels= 1; /* really needed */ + break; + case CODEC_ID_AMR_NB: + st->codec->sample_rate= 8000; + st->codec->channels= 1; /* really needed */ + break; + case CODEC_ID_MP2: + st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */ + st->need_parsing = 1; + break; + default: + break; + } + + return 0; +} + +static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + unsigned int i, entries; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + + entries = get_be32(pb); + + if(entries >= UINT_MAX / sizeof(MOV_sample_to_chunk_tbl)) + return -1; + +#ifdef DEBUG +av_log(NULL, AV_LOG_DEBUG, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries); +#endif + sc->sample_to_chunk_sz = entries; + sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl)); + if (!sc->sample_to_chunk) + return -1; + for(i=0; isample_to_chunk[i].first = get_be32(pb); + sc->sample_to_chunk[i].count = get_be32(pb); + sc->sample_to_chunk[i].id = get_be32(pb); + } + return 0; +} + +static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + unsigned int i, entries; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + + entries = get_be32(pb); + + if(entries >= UINT_MAX / sizeof(long)) + return -1; + + sc->keyframe_count = entries; +#ifdef DEBUG + av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %d\n", sc->keyframe_count); +#endif + sc->keyframes = av_malloc(entries * sizeof(long)); + if (!sc->keyframes) + return -1; + for(i=0; ikeyframes[i] = get_be32(pb); +#ifdef DEBUG +/* av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */ +#endif + } + return 0; +} + +static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + unsigned int i, entries, sample_size; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + + sample_size = get_be32(pb); + if (!sc->sample_size) /* do not overwrite value computed in stsd */ + sc->sample_size = sample_size; + entries = get_be32(pb); + if(entries >= UINT_MAX / sizeof(long)) + return -1; + + sc->sample_count = entries; + if (sample_size) + return 0; + +#ifdef DEBUG + av_log(NULL, AV_LOG_DEBUG, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count); +#endif + sc->sample_sizes = av_malloc(entries * sizeof(long)); + if (!sc->sample_sizes) + return -1; + for(i=0; isample_sizes[i] = get_be32(pb); +#ifdef DEBUG + av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]); +#endif + } + return 0; +} + +static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + unsigned int i, entries; + int64_t duration=0; + int64_t total_sample_count=0; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + entries = get_be32(pb); + if(entries >= UINT_MAX / sizeof(Time2Sample)) + return -1; + + sc->stts_count = entries; + sc->stts_data = av_malloc(entries * sizeof(Time2Sample)); + +#ifdef DEBUG +av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries); +#endif + + sc->time_rate=0; + + for(i=0; istts_data[i].count= sample_count; + sc->stts_data[i].duration= sample_duration; + + sc->time_rate= ff_gcd(sc->time_rate, sample_duration); + + dprintf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration); + + duration+=(int64_t)sample_duration*sample_count; + total_sample_count+=sample_count; + } + + st->nb_frames= total_sample_count; + if(duration) + st->duration= duration; + return 0; +} + +static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + MOVStreamContext *sc = (MOVStreamContext *)st->priv_data; + unsigned int i, entries; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + entries = get_be32(pb); + if(entries >= UINT_MAX / sizeof(Time2Sample)) + return -1; + + sc->ctts_count = entries; + sc->ctts_data = av_malloc(entries * sizeof(Time2Sample)); + + dprintf("track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries); + + for(i=0; ifc, AV_LOG_ERROR, "negative ctts, ignoring\n"); + sc->ctts_count = 0; + url_fskip(pb, 8 * (entries - i - 1)); + break; + } + sc->ctts_data[i].count = count; + sc->ctts_data[i].duration= duration; + + sc->time_rate= ff_gcd(sc->time_rate, duration); + } + return 0; +} + +static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st; + MOVStreamContext *sc; + + st = av_new_stream(c->fc, c->fc->nb_streams); + if (!st) return -2; + sc = av_mallocz(sizeof(MOVStreamContext)); + if (!sc) { + av_free(st); + return -1; + } + + st->priv_data = sc; + st->codec->codec_type = CODEC_TYPE_DATA; + st->start_time = 0; /* XXX: check */ + c->streams[c->fc->nb_streams-1] = sc; + + return mov_read_default(c, pb, atom); +} + +static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + AVStream *st = c->fc->streams[c->fc->nb_streams-1]; + int version = get_byte(pb); + + get_byte(pb); get_byte(pb); + get_byte(pb); /* flags */ + /* + MOV_TRACK_ENABLED 0x0001 + MOV_TRACK_IN_MOVIE 0x0002 + MOV_TRACK_IN_PREVIEW 0x0004 + MOV_TRACK_IN_POSTER 0x0008 + */ + + if (version == 1) { + get_be64(pb); + get_be64(pb); + } else { + get_be32(pb); /* creation time */ + get_be32(pb); /* modification time */ + } + st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/ + get_be32(pb); /* reserved */ + st->start_time = 0; /* check */ + (version == 1) ? get_be64(pb) : get_be32(pb); /* highlevel (considering edits) duration in movie timebase */ + get_be32(pb); /* reserved */ + get_be32(pb); /* reserved */ + + get_be16(pb); /* layer */ + get_be16(pb); /* alternate group */ + get_be16(pb); /* volume */ + get_be16(pb); /* reserved */ + + url_fskip(pb, 36); /* display matrix */ + + /* those are fixed-point */ + get_be32(pb); /* track width */ + get_be32(pb); /* track height */ + + return 0; +} + +/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */ +/* like the files created with Adobe Premiere 5.0, for samples see */ +/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */ +static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + int err; + + if (atom.size < 8) + return 0; /* continue */ + if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */ + url_fskip(pb, atom.size - 4); + return 0; + } + atom.type = get_le32(pb); + atom.offset += 8; + atom.size -= 8; + if (atom.type != MKTAG('m', 'd', 'a', 't')) { + url_fskip(pb, atom.size); + return 0; + } + err = mov_read_mdat(c, pb, atom); + return err; +} + +static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ +#ifdef CONFIG_ZLIB + ByteIOContext ctx; + uint8_t *cmov_data; + uint8_t *moov_data; /* uncompressed data */ + long cmov_len, moov_len; + int ret; + + 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' )) { + av_log(NULL, AV_LOG_ERROR, "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, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK) + return -1; + if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0) + return -1; + atom.type = MKTAG( 'm', 'o', 'o', 'v' ); + atom.offset = 0; + atom.size = moov_len; +#ifdef DEBUG +// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); } +#endif + ret = mov_read_default(c, &ctx, atom); + av_free(moov_data); + av_free(cmov_data); + return ret; +#else + av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n"); + return -1; +#endif +} + +/* edit list atom */ +static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + int i, edit_count; + + get_byte(pb); /* version */ + get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ + edit_count= c->streams[c->fc->nb_streams-1]->edit_count = get_be32(pb); /* entries */ + + for(i=0; ifc->nb_streams-1, c->streams[c->fc->nb_streams-1]->edit_count); + return 0; +} + +static const MOVParseTableEntry mov_default_parse_table[] = { +/* mp4 atoms */ +{ MKTAG( 'c', 'o', '6', '4' ), mov_read_stco }, +{ MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */ +{ MKTAG( 'e', 'd', 't', 's' ), mov_read_default }, +{ MKTAG( 'e', 'l', 's', 't' ), mov_read_elst }, +{ MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda }, +{ MKTAG( 'f', 'i', 'e', 'l' ), mov_read_extradata }, +{ MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp }, +{ MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr }, +{ MKTAG( 'j', 'p', '2', 'h' ), mov_read_extradata }, +{ MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat }, +{ MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd }, +{ MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default }, +{ MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default }, +{ MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov }, +{ MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd }, +{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */ +{ MKTAG( 'a', 'l', 'a', 'c' ), mov_read_extradata }, /* alac specific atom */ +{ MKTAG( 'a', 'v', 'c', 'C' ), mov_read_avcC }, +{ MKTAG( 's', 't', 'b', 'l' ), mov_read_default }, +{ MKTAG( 's', 't', 'c', 'o' ), mov_read_stco }, +{ MKTAG( 's', 't', 's', 'c' ), mov_read_stsc }, +{ MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */ +{ MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */ +{ MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */ +{ MKTAG( 's', 't', 't', 's' ), mov_read_stts }, +{ MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */ +{ MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak }, +{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave }, +{ MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab }, +{ MKTAG( 'e', 's', 'd', 's' ), mov_read_esds }, +{ MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */ +{ MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov }, +{ 0L, NULL } +}; + +static void mov_free_stream_context(MOVStreamContext *sc) +{ + if(sc) { + av_freep(&sc->ctts_data); + av_freep(&sc); + } +} + +/* XXX: is it sufficient ? */ +static int mov_probe(AVProbeData *p) +{ + unsigned int offset; + uint32_t tag; + int score = 0; + + /* check file header */ + if (p->buf_size <= 12) + return 0; + offset = 0; + for(;;) { + /* ignore invalid offset */ + if ((offset + 8) > (unsigned int)p->buf_size) + return score; + tag = AV_RL32(p->buf + offset + 4); + switch(tag) { + /* check for obvious tags */ + case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */ + case MKTAG( 'm', 'o', 'o', 'v' ): + case MKTAG( 'm', 'd', 'a', 't' ): + case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */ + case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */ + return AVPROBE_SCORE_MAX; + /* those are more common words, so rate then a bit less */ + case MKTAG( 'w', 'i', 'd', 'e' ): + case MKTAG( 'f', 'r', 'e', 'e' ): + case MKTAG( 'j', 'u', 'n', 'k' ): + case MKTAG( 'p', 'i', 'c', 't' ): + return AVPROBE_SCORE_MAX - 5; + case MKTAG( 'f', 't', 'y', 'p' ): + case MKTAG( 's', 'k', 'i', 'p' ): + case MKTAG( 'u', 'u', 'i', 'd' ): + offset = AV_RB32(p->buf+offset) + offset; + /* if we only find those cause probedata is too small at least rate them */ + score = AVPROBE_SCORE_MAX - 50; + break; + default: + /* unrecognized tag */ + return score; + } + } + return score; +} + +static void mov_build_index(MOVContext *mov, AVStream *st) +{ + MOVStreamContext *sc = st->priv_data; + offset_t current_offset; + int64_t current_dts = 0; + unsigned int stts_index = 0; + unsigned int stsc_index = 0; + unsigned int stss_index = 0; + unsigned int i, j, k; + + if (sc->sample_sizes || st->codec->codec_type == CODEC_TYPE_VIDEO || sc->dv_audio_container) { + unsigned int current_sample = 0; + unsigned int stts_sample = 0; + unsigned int keyframe, sample_size; + unsigned int distance = 0; + + st->nb_frames = sc->sample_count; + for (i = 0; i < sc->chunk_count; i++) { + current_offset = sc->chunk_offsets[i]; + if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first) + stsc_index++; + for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) { + if (current_sample >= sc->sample_count) { + av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n"); + goto out; + } + keyframe = !sc->keyframe_count || current_sample + 1 == sc->keyframes[stss_index]; + if (keyframe) { + distance = 0; + if (stss_index + 1 < sc->keyframe_count) + stss_index++; + } + sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample]; + dprintf("AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", size %d, distance %d, keyframe %d\n", + st->index, current_sample, current_offset, current_dts, sample_size, distance, keyframe); + av_add_index_entry(st, current_offset, current_dts, sample_size, distance, keyframe ? AVINDEX_KEYFRAME : 0); + current_offset += sample_size; + assert(sc->stts_data[stts_index].duration % sc->time_rate == 0); + current_dts += sc->stts_data[stts_index].duration / sc->time_rate; + distance++; + stts_sample++; + current_sample++; + if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) { + stts_sample = 0; + stts_index++; + } + } + } + } else { /* read whole chunk */ + unsigned int chunk_samples, chunk_size, chunk_duration; + + for (i = 0; i < sc->chunk_count; i++) { + current_offset = sc->chunk_offsets[i]; + if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first) + stsc_index++; + chunk_samples = sc->sample_to_chunk[stsc_index].count; + /* get chunk size */ + if (sc->sample_size > 1 || st->codec->codec_id == CODEC_ID_PCM_U8 || st->codec->codec_id == CODEC_ID_PCM_S8) + chunk_size = chunk_samples * sc->sample_size; + else if (sc->sample_size_v1.den > 0 && (chunk_samples * sc->sample_size_v1.num % sc->sample_size_v1.den == 0)) + chunk_size = chunk_samples * sc->sample_size_v1.num / sc->sample_size_v1.den; + else { /* workaround to find nearest next chunk offset */ + chunk_size = INT_MAX; + for (j = 0; j < mov->total_streams; j++) { + MOVStreamContext *msc = mov->streams[j]; + + for (k = msc->next_chunk; k < msc->chunk_count; k++) { + if (msc->chunk_offsets[k] > current_offset && msc->chunk_offsets[k] - current_offset < chunk_size) { + chunk_size = msc->chunk_offsets[k] - current_offset; + msc->next_chunk = k; + break; + } + } + } + /* check for last chunk */ + if (chunk_size == INT_MAX) + for (j = 0; j < mov->mdat_count; j++) { + dprintf("mdat %d, offset %"PRIx64", size %"PRId64", current offset %"PRIx64"\n", + j, mov->mdat_list[j].offset, mov->mdat_list[j].size, current_offset); + if (mov->mdat_list[j].offset <= current_offset && mov->mdat_list[j].offset + mov->mdat_list[j].size > current_offset) + chunk_size = mov->mdat_list[j].offset + mov->mdat_list[j].size - current_offset; + } + assert(chunk_size != INT_MAX); + for (j = 0; j < mov->total_streams; j++) { + mov->streams[j]->next_chunk = 0; + } + } + av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME); + /* get chunk duration */ + chunk_duration = 0; + while (chunk_samples > 0) { + if (chunk_samples < sc->stts_data[stts_index].count) { + chunk_duration += sc->stts_data[stts_index].duration * chunk_samples; + sc->stts_data[stts_index].count -= chunk_samples; + break; + } else { + chunk_duration += sc->stts_data[stts_index].duration * chunk_samples; + chunk_samples -= sc->stts_data[stts_index].count; + if (stts_index + 1 < sc->stts_count) { + stts_index++; + } + } + } + dprintf("AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", size %d, duration %d\n", + st->index, i, current_offset, current_dts, chunk_size, chunk_duration); + assert(chunk_duration % sc->time_rate == 0); + current_dts += chunk_duration / sc->time_rate; + } + } + out: + /* adjust sample count to avindex entries */ + sc->sample_count = st->nb_index_entries; +} + +static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap) +{ + MOVContext *mov = (MOVContext *) s->priv_data; + ByteIOContext *pb = &s->pb; + int i, err; + MOV_atom_t atom = { 0, 0, 0 }; + + mov->fc = s; + mov->parse_table = mov_default_parse_table; + + if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */ + atom.size = url_fsize(pb); + else + atom.size = 0x7FFFFFFFFFFFFFFFLL; + + /* check MOV header */ + err = mov_read_default(mov, pb, atom); + if (err<0 || (!mov->found_moov && !mov->found_mdat)) { + av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%"PRId64"\n", + err, mov->found_moov, mov->found_mdat, url_ftell(pb)); + return -1; + } + dprintf("on_parse_exit_offset=%d\n", (int) url_ftell(pb)); + + /* some cleanup : make sure we are on the mdat atom */ + if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset)) + url_fseek(pb, mov->mdat_offset, SEEK_SET); + + mov->total_streams = s->nb_streams; + + for(i=0; itotal_streams; i++) { + MOVStreamContext *sc = mov->streams[i]; + /* sanity checks */ + if(!sc->stts_count || !sc->chunk_count || !sc->sample_to_chunk_sz || + (!sc->sample_size && !sc->sample_count)){ + av_log(s, AV_LOG_ERROR, "missing mandatory atoms, broken header\n"); + return -1; + } + if(!sc->time_rate) + sc->time_rate=1; + if(!sc->time_scale) + sc->time_scale= mov->time_scale; + av_set_pts_info(s->streams[i], 64, sc->time_rate, sc->time_scale); + + if(s->streams[i]->duration != AV_NOPTS_VALUE){ + assert(s->streams[i]->duration % sc->time_rate == 0); + s->streams[i]->duration /= sc->time_rate; + } + sc->ffindex = i; + mov_build_index(mov, s->streams[i]); + } + + for(i=0; itotal_streams; i++) { + /* dont need those anymore */ + av_freep(&mov->streams[i]->chunk_offsets); + av_freep(&mov->streams[i]->sample_to_chunk); + av_freep(&mov->streams[i]->sample_sizes); + av_freep(&mov->streams[i]->keyframes); + av_freep(&mov->streams[i]->stts_data); + } + av_freep(&mov->mdat_list); + return 0; +} + +static int mov_read_packet(AVFormatContext *s, AVPacket *pkt) +{ + MOVContext *mov = s->priv_data; + MOVStreamContext *sc = 0; + AVIndexEntry *sample = 0; + int64_t best_dts = INT64_MAX; + int i; + + for (i = 0; i < mov->total_streams; i++) { + MOVStreamContext *msc = mov->streams[i]; + + if (s->streams[i]->discard != AVDISCARD_ALL && msc->current_sample < msc->sample_count) { + AVIndexEntry *current_sample = &s->streams[i]->index_entries[msc->current_sample]; + int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate, AV_TIME_BASE, msc->time_scale); + + dprintf("stream %d, sample %ld, dts %"PRId64"\n", i, msc->current_sample, dts); + if (dts < best_dts) { + sample = current_sample; + best_dts = dts; + sc = msc; + } + } + } + if (!sample) + return -1; + /* must be done just before reading, to avoid infinite loop on sample */ + sc->current_sample++; + if (sample->pos >= url_fsize(&s->pb)) { + av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n", sc->ffindex, sample->pos); + return -1; + } +#ifdef CONFIG_DV_DEMUXER + if (sc->dv_audio_container) { + dv_get_packet(mov->dv_demux, pkt); + dprintf("dv audio pkt size %d\n", pkt->size); + } else { +#endif + url_fseek(&s->pb, sample->pos, SEEK_SET); + av_get_packet(&s->pb, pkt, sample->size); +#ifdef CONFIG_DV_DEMUXER + if (mov->dv_demux) { + void *pkt_destruct_func = pkt->destruct; + dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size); + pkt->destruct = pkt_destruct_func; + } + } +#endif + pkt->stream_index = sc->ffindex; + pkt->dts = sample->timestamp; + if (sc->ctts_data) { + assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0); + pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate; + /* update ctts context */ + sc->sample_to_ctime_sample++; + if (sc->sample_to_ctime_index < sc->ctts_count && sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) { + sc->sample_to_ctime_index++; + sc->sample_to_ctime_sample = 0; + } + } else { + pkt->pts = pkt->dts; + } + pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0; + pkt->pos = sample->pos; + dprintf("stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n", pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration); + return 0; +} + +static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags) +{ + MOVStreamContext *sc = st->priv_data; + int sample, time_sample; + int i; + + sample = av_index_search_timestamp(st, timestamp, flags); + dprintf("stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample); + if (sample < 0) /* not sure what to do */ + return -1; + sc->current_sample = sample; + dprintf("stream %d, found sample %ld\n", st->index, sc->current_sample); + /* adjust ctts index */ + if (sc->ctts_data) { + time_sample = 0; + for (i = 0; i < sc->ctts_count; i++) { + time_sample += sc->ctts_data[i].count; + if (time_sample >= sc->current_sample) { + sc->sample_to_ctime_index = i; + sc->sample_to_ctime_sample = time_sample - sc->current_sample; + break; + } + } + } + return sample; +} + +static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags) +{ + AVStream *st; + int64_t seek_timestamp, timestamp; + int sample; + int i; + + if (stream_index >= s->nb_streams) + return -1; + + st = s->streams[stream_index]; + sample = mov_seek_stream(st, sample_time, flags); + if (sample < 0) + return -1; + + /* adjust seek timestamp to found sample timestamp */ + seek_timestamp = st->index_entries[sample].timestamp; + + for (i = 0; i < s->nb_streams; i++) { + st = s->streams[i]; + if (stream_index == i || st->discard == AVDISCARD_ALL) + continue; + + timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base); + mov_seek_stream(st, timestamp, flags); + } + return 0; +} + +static int mov_read_close(AVFormatContext *s) +{ + int i; + MOVContext *mov = (MOVContext *) s->priv_data; + for(i=0; itotal_streams; i++) + mov_free_stream_context(mov->streams[i]); + /* free color tabs */ + for(i=0; ictab_size; i++) + av_freep(&mov->ctab[i]); + if(mov->dv_demux){ + for(i=0; idv_fctx->nb_streams; i++){ + av_freep(&mov->dv_fctx->streams[i]->codec); + av_freep(&mov->dv_fctx->streams[i]); + } + av_freep(&mov->dv_fctx); + av_freep(&mov->dv_demux); + } + av_freep(&mov->ctab); + return 0; +} + +AVInputFormat mov_demuxer = { + "mov,mp4,m4a,3gp,3g2,mj2", + "QuickTime/MPEG4/Motion JPEG 2000 format", + sizeof(MOVContext), + mov_probe, + mov_read_header, + mov_read_packet, + mov_read_close, + mov_read_seek, +}; -- 2.7.4