X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fmov.c;h=71cd5113b058eb636b30bda3cce2f6397ddc18eb;hb=ac6a655b8a191a56dc194b548d8ba7bb16ea6abb;hp=72f03d4fd4e87d0cdb2fd111a99cb5d7e62b5579;hpb=14342fd53794471da963c6a41f2712bb09191945;p=ffmpeg diff --git a/libavformat/mov.c b/libavformat/mov.c index 72f03d4fd4e..71cd5113b05 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -16,6 +16,9 @@ * 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 + #include "avformat.h" #include "avi.h" @@ -25,6 +28,7 @@ /* * 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), @@ -37,6 +41,7 @@ * (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) @@ -44,8 +49,8 @@ * Reference documents: * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt * Apple: - * http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html - * http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf + * http://developer.apple.com/documentation/QuickTime/QTFF/ + * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf * QuickTime is a trademark of Apple (AFAIK :)) */ @@ -55,6 +60,12 @@ #include #endif +#include "qtpalette.h" + + +/* Allows seeking (MOV_SPLIT_CHUNKS should also be defined) */ +#define MOV_SEEK + /* allows chunk splitting - should work now... */ /* in case you can't read a file, try commenting */ #define MOV_SPLIT_CHUNKS @@ -91,6 +102,8 @@ static const CodecTag mov_video_tags[] = { { 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 */ @@ -98,6 +111,14 @@ static const CodecTag mov_video_tags[] = { { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */ /* { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, *//* AVID dv */ { 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_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_NONE, 0 }, }; @@ -118,9 +139,13 @@ static const CodecTag mov_audio_tags[] = { { 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 or audio ? */ + { 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_NONE, 0 }, }; @@ -198,24 +223,38 @@ typedef struct { struct MOVParseTableEntry; +typedef struct Time2Sample{ + int count; + int duration; +}Time2Sample; + typedef struct MOVStreamContext { int ffindex; /* the ffmpeg stream id */ int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */ long next_chunk; long chunk_count; int64_t *chunk_offsets; + int stts_count; + Time2Sample *stts_data; + int ctts_count; + Time2Sample *ctts_data; + int edit_count; /* number of 'edit' (elst atom) */ long sample_to_chunk_sz; MOV_sample_to_chunk_tbl *sample_to_chunk; long sample_to_chunk_index; + int sample_to_time_index; + long sample_to_time_sample; + uint64_t sample_to_time_time; + int sample_to_ctime_index; + int sample_to_ctime_sample; long sample_size; long sample_count; long *sample_sizes; + long keyframe_count; + long *keyframes; int time_scale; long current_sample; long left_in_chunk; /* how many samples before next chunk */ - /* specific MPEG4 header which is added at the beginning of the stream */ - int header_len; - uint8_t *header_data; MOV_esds_t esds; } MOVStreamContext; @@ -228,6 +267,7 @@ typedef struct MOVContext { int found_mdat; /* we suppose we have enough data to read the file */ int64_t mdat_size; int64_t mdat_offset; + int ni; ///< non interleaved mode int total_streams; /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio * but we need the info to be able to skip data from those streams in the 'mdat' section @@ -240,6 +280,8 @@ typedef struct MOVContext { 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; } MOVContext; @@ -272,9 +314,9 @@ void print_atom(const char *str, MOV_atom_t atom) i=debug_indent; if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L'); while(i--) - printf("|"); - printf("parse:"); - printf(" %s: tag=%c%c%c%c offset=0x%x size=0x%x\n", + av_log(NULL, AV_LOG_DEBUG, "|"); + av_log(NULL, AV_LOG_DEBUG, "parse:"); + av_log(NULL, AV_LOG_DEBUG, " %s: tag=%c%c%c%c offset=0x%x size=0x%x\n", str, tag & 0xff, (tag >> 8) & 0xff, (tag >> 16) & 0xff, @@ -323,7 +365,7 @@ static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) } total_size += 8; a.offset += 8; - //printf("type: %08x %.4s sz: %Lx %Lx %Lx\n", type, (char*)&type, size, atom.size, total_size); + //av_log(NULL, AV_LOG_DEBUG, "type: %08x %.4s sz: %Lx %Lx %Lx\n", type, (char*)&type, size, atom.size, total_size); if (a.size == 1) { /* 64 bit extended size */ a.size = get_be64(pb) - 8; a.offset += 8; @@ -339,7 +381,11 @@ static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) /* empty */; a.size -= 8; -// printf(" i=%ld\n", i); + + if(a.size < 0) + break; + +// av_log(NULL, AV_LOG_DEBUG, " i=%ld\n", i); if (c->parse_table[i].type == 0) { /* skip leaf atoms data */ // url_seek(pb, atom.offset+atom.size, SEEK_SET); #ifdef DEBUG @@ -359,7 +405,7 @@ static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) } if (!err && total_size < atom.size && atom.size < 0x7ffff) { - //printf("RESET %Ld %Ld err:%d\n", atom.size, total_size, err); + //av_log(NULL, AV_LOG_DEBUG, "RESET %Ld %Ld err:%d\n", atom.size, total_size, err); url_fskip(pb, atom.size - total_size); } @@ -371,9 +417,12 @@ static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) 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; - //url_fskip(pb, atom.size); // for now c->ctab = av_realloc(c->ctab, ++c->ctab_size); t = c->ctab[c->ctab_size]; t->seed = get_be32(pb); @@ -385,6 +434,7 @@ static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) if (t->clrs) get_buffer(pb, t->clrs, len); } +#endif return 0; } @@ -406,8 +456,8 @@ static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) type = get_le32(pb); /* component subtype */ #ifdef DEBUG - printf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype); - printf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]); + av_log(NULL, AV_LOG_DEBUG, "ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype); + av_log(NULL, AV_LOG_DEBUG, "stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]); #endif #ifdef DEBUG /* XXX: yeah this is ugly... */ @@ -432,16 +482,16 @@ static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) /* helps parsing the string hereafter... */ c->mp4 = 0; if(type == MKTAG('v', 'i', 'd', 'e')) - st->codec.codec_type = CODEC_TYPE_VIDEO; + st->codec->codec_type = CODEC_TYPE_VIDEO; else if(type == MKTAG('s', 'o', 'u', 'n')) - st->codec.codec_type = CODEC_TYPE_AUDIO; + 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; + st->codec->codec_type = CODEC_TYPE_VIDEO; else if(type == MKTAG('s', 'o', 'u', 'n')) - st->codec.codec_type = CODEC_TYPE_AUDIO; + st->codec->codec_type = CODEC_TYPE_AUDIO; } get_be32(pb); /* component manufacture */ get_be32(pb); /* component flags */ @@ -466,13 +516,14 @@ static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) if (buf) { get_buffer(pb, buf, len); buf[len] = '\0'; - printf("**buf='%s'\n", buf); + av_log(NULL, AV_LOG_DEBUG, "**buf='%s'\n", buf); av_free(buf); } else #endif url_fskip(pb, len); } + url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset)); return 0; } @@ -495,20 +546,11 @@ static int mov_mp4_read_descr(ByteIOContext *pb, int *tag) *tag = get_byte(pb); len = mov_mp4_read_descr_len(pb); #ifdef DEBUG - printf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len); + av_log(NULL, AV_LOG_DEBUG, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len); #endif return len; } -static inline unsigned int get_be24(ByteIOContext *s) -{ - unsigned int val; - val = get_byte(s) << 16; - val |= get_byte(s) << 8; - val |= get_byte(s); - return val; -} - static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) { AVStream *st = c->fc->streams[c->fc->nb_streams-1]; @@ -536,15 +578,15 @@ static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) sc->esds.avg_bitrate = get_be32(pb); len = mov_mp4_read_descr(pb, &tag); - //printf("LEN %d TAG %d m:%d a:%d\n", len, tag, sc->esds.max_bitrate, sc->esds.avg_bitrate); + //av_log(NULL, AV_LOG_DEBUG, "LEN %d TAG %d m:%d a:%d\n", len, tag, sc->esds.max_bitrate, sc->esds.avg_bitrate); if (tag == MP4DecSpecificDescrTag) { #ifdef DEBUG - printf("Specific MPEG4 header len=%d\n", len); + av_log(NULL, AV_LOG_DEBUG, "Specific MPEG4 header len=%d\n", len); #endif - st->codec.extradata = (uint8_t*) av_mallocz(len); - if (st->codec.extradata) { - get_buffer(pb, st->codec.extradata, len); - st->codec.extradata_size = len; + st->codec->extradata = (uint8_t*) av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE); + if (st->codec->extradata) { + get_buffer(pb, st->codec->extradata, len); + st->codec->extradata_size = len; } } } @@ -598,12 +640,13 @@ static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) get_be32(pb); /* creation time */ get_be32(pb); /* modification time */ - c->streams[c->total_streams]->time_scale = get_be32(pb); + c->streams[c->fc->nb_streams-1]->time_scale = get_be32(pb); + av_set_pts_info(c->fc->streams[c->fc->nb_streams-1], 64, 1, c->streams[c->fc->nb_streams-1]->time_scale); #ifdef DEBUG - printf("track[%i].time_scale = %i\n", c->fc->nb_streams-1, c->streams[c->total_streams]->time_scale); /* time scale */ + av_log(NULL, AV_LOG_DEBUG, "track[%i].time_scale = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->time_scale); /* time scale */ #endif - get_be32(pb); /* duration */ + c->fc->streams[c->fc->nb_streams-1]->duration= get_be32(pb); /* duration */ get_be16(pb); /* language */ get_be16(pb); /* quality */ @@ -622,7 +665,7 @@ static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) get_be32(pb); /* modification time */ c->time_scale = get_be32(pb); /* time scale */ #ifdef DEBUG - printf("time scale = %i\n", c->time_scale); + av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale); #endif c->duration = get_be32(pb); /* duration */ get_be32(pb); /* preferred scale */ @@ -648,17 +691,60 @@ 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 = (uint8_t*) av_mallocz(st->codec.extradata_size); - - if (st->codec.extradata) { - int i; - strcpy(st->codec.extradata, "SVQ3"); // fake - get_buffer(pb, st->codec.extradata + 0x5a, atom.size); - //printf("Reading SMI %Ld %s\n", atom.size, (char*)st->codec.extradata + 0x5a); + av_free(st->codec->extradata); + st->codec->extradata_size = 0x5a + atom.size; + st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + + if (st->codec->extradata) { + strcpy(st->codec->extradata, "SVQ3"); // fake + get_buffer(pb, st->codec->extradata + 0x5a, atom.size); + //av_log(NULL, AV_LOG_DEBUG, "Reading SMI %Ld %s\n", atom.size, (char*)st->codec->extradata + 0x5a); + } 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; + + // 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 = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + + if (st->codec->extradata) { + get_buffer(pb, st->codec->extradata, atom.size); + //av_log(NULL, AV_LOG_DEBUG, "Reading frma %Ld %s\n", atom.size, (char*)st->codec->extradata); + } 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 = (uint8_t*) 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); @@ -669,7 +755,7 @@ 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; - int entries, i; + unsigned int i, entries; print_atom("stco", atom); @@ -677,6 +763,10 @@ static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) 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 = (int64_t*) av_malloc(entries * sizeof(int64_t)); if (!sc->chunk_offsets) @@ -691,10 +781,20 @@ static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) } } else return -1; + + for(i=0; ifc->nb_streams; i++){ + MOVStreamContext *sc2 = (MOVStreamContext *)c->fc->streams[i]->priv_data; + if(sc2 && sc2->chunk_offsets){ + int64_t first= sc2->chunk_offsets[0]; + int64_t last= sc2->chunk_offsets[sc2->chunk_count-1]; + if(first >= sc->chunk_offsets[entries-1] || last <= sc->chunk_offsets[0]) + c->ni=1; + } + } #ifdef DEBUG /* for(i=0; ichunk_offsets[i]); + av_log(NULL, AV_LOG_DEBUG, "chunk offset=0x%Lx\n", sc->chunk_offsets[i]); } */ #endif @@ -704,9 +804,22 @@ static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) 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; + 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; print_atom("stsd", atom); @@ -730,51 +843,52 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) AVCodec *codec; codec = avcodec_find_decoder(id); if (codec) - st->codec.codec_type = codec->type; + st->codec->codec_type = codec->type; } #ifdef DEBUG - printf("size=%d 4CC= %c%c%c%c codec_type=%d\n", + av_log(NULL, AV_LOG_DEBUG, "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); + st->codec->codec_type); #endif - st->codec.codec_tag = format; - if(st->codec.codec_type==CODEC_TYPE_VIDEO) { + st->codec->codec_tag = format; + if(st->codec->codec_type==CODEC_TYPE_VIDEO) { MOV_atom_t a = { 0, 0, 0 }; - st->codec.codec_id = id; + 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 */ -#if 1 - if (st->codec.codec_id == CODEC_ID_MPEG4) { - /* in some MPEG4 the width/height are not correct, so - we ignore this info */ - st->codec.width = 0; - st->codec.height = 0; + if(st->codec->codec_id == CODEC_ID_MPEG4){ //FIXME this is silly + get_be16(pb); + get_be16(pb); + }else{ + st->codec->width = get_be16(pb); /* width */ + st->codec->height = get_be16(pb); /* height */ } -#endif 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 - printf("frames/samples = %d\n", frames_per_sample); + av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample); #endif - get_buffer(pb, (uint8_t *)st->codec.codec_name, 32); /* codec name */ + 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 */ + st->codec->bits_per_sample = get_be16(pb); /* depth */ + st->codec->color_table_id = get_be16(pb); /* colortable id */ /* These are set in mov_read_stts and might already be set! - st->codec.frame_rate = 25; - st->codec.frame_rate_base = 1; + st->codec->time_base.den = 25; + st->codec->time_base.num = 1; */ size -= (16+8*4+2+32+2*2); #if 0 @@ -786,7 +900,7 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) a.type = get_le32(pb); size -= 8; #ifdef DEBUG - printf("VIDEO: atom_type=%c%c%c%c atom.size=%Ld size_left=%d\n", + av_log(NULL, AV_LOG_DEBUG, "VIDEO: atom_type=%c%c%c%c atom.size=%Ld size_left=%d\n", (a.type >> 0) & 0xff, (a.type >> 8) & 0xff, (a.type >> 16) & 0xff, @@ -819,7 +933,7 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) goto fail; /* MP4DecSpecificDescrTag */ #ifdef DEBUG - printf("Specific MPEG4 header len=%d\n", len); + av_log(NULL, AV_LOG_DEBUG, "Specific MPEG4 header len=%d\n", len); #endif sc->header_data = av_mallocz(len); if (sc->header_data) { @@ -834,7 +948,7 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) break; } fail: - printf("ATOMENEWSIZE %Ld %d\n", atom.size, url_ftell(pb) - start_pos); + av_log(NULL, AV_LOG_DEBUG, "ATOMENEWSIZE %Ld %d\n", atom.size, url_ftell(pb) - start_pos); if (atom.size > 8) { url_fskip(pb, (atom.size - 8) - ((url_ftell(pb) - start_pos))); @@ -846,15 +960,86 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) url_fskip(pb, size); } #else + + /* 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; + a.size = size; mov_read_default(c, pb, a); #endif } else { - st->codec.codec_id = codec_get_id(mov_audio_tags, format); - if(st->codec.codec_id==CODEC_ID_AMR_NB) //from TS26.244 + st->codec->codec_id = codec_get_id(mov_audio_tags, format); + if(st->codec->codec_id==CODEC_ID_AMR_NB || st->codec->codec_id==CODEC_ID_AMR_WB) //from TS26.244 { #ifdef DEBUG - printf("AMR-NB audio identified!!\n"); + av_log(NULL, AV_LOG_DEBUG, "AMR-NB or AMR-WB audio identified!!\n"); #endif get_be32(pb);get_be32(pb); //Reserved_8 get_be16(pb);//Reserved_2 @@ -864,46 +1049,31 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) get_be16(pb);//Reserved_2 //AMRSpecificBox.(10 bytes) - -#ifdef DEBUG - int damr_size= -#endif + get_be32(pb); //size -#ifdef DEBUG - int damr_type= -#endif get_be32(pb); //type=='damr' -#ifdef DEBUG - int damr_vendor= -#endif get_be32(pb); //vendor get_byte(pb); //decoder version get_be16(pb); //mode_set get_byte(pb); //mode_change_period get_byte(pb); //frames_per_sample -#ifdef DEBUG - printf("Audio: damr_type=%c%c%c%c damr_size=%d damr_vendor=%c%c%c%c\n", - (damr_type >> 24) & 0xff, - (damr_type >> 16) & 0xff, - (damr_type >> 8) & 0xff, - (damr_type >> 0) & 0xff, - damr_size, - (damr_vendor >> 24) & 0xff, - (damr_vendor >> 16) & 0xff, - (damr_vendor >> 8) & 0xff, - (damr_vendor >> 0) & 0xff - ); -#endif - - st->time_length=0;//Not possible to get from this info, must count number of AMR frames - st->codec.sample_rate=8000; - st->codec.channels=1; - st->codec.bits_per_sample=16; - st->codec.bit_rate=0; /*It is not possible to tell this before we have + st->duration = AV_NOPTS_VALUE;//Not possible to get from this info, must count number of AMR frames + if(st->codec->codec_id==CODEC_ID_AMR_NB) + { + st->codec->sample_rate=8000; + st->codec->channels=1; + } + else //AMR-WB + { + st->codec->sample_rate=16000; + st->codec->channels=1; + } + st->codec->bits_per_sample=16; + st->codec->bit_rate=0; /*It is not possible to tell this before we have an audio frame and even then every frame can be different*/ } - else if( st->codec.codec_tag == MKTAG( 'm', 'p', '4', 's' )) + else if( st->codec->codec_tag == MKTAG( 'm', 'p', '4', 's' )) { //This is some stuff for the hint track, lets ignore it! //Do some mp4 auto detect. @@ -911,32 +1081,95 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) size-=(16); url_fskip(pb, size); /* The mp4s atom also contians a esds atom that we can skip*/ } + else if( st->codec->codec_tag == MKTAG( 'm', 'p', '4', 'a' )) + { + MOV_atom_t a; + int mp4_version; + + /* Handle mp4 audio tag */ + mp4_version=get_be16(pb);/*version*/ + get_be16(pb); /*revesion*/ + get_be32(pb); + st->codec->channels = get_be16(pb); /* channels */ + st->codec->bits_per_sample = get_be16(pb); /* bits per sample */ + get_be32(pb); + st->codec->sample_rate = get_be16(pb); /* sample rate, not always correct */ + if(st->codec->sample_rate == 1) //nonsese rate? -> ignore + st->codec->sample_rate= 0; + + get_be16(pb); + c->mp4=1; + + if(mp4_version==1) + { + url_fskip(pb,16); + a.size=size-(16+20+16); + } + else + a.size=size-(16+20); + + a.offset=url_ftell(pb); + + mov_read_default(c, pb, a); + + /* Get correct sample rate from extradata */ + if(st->codec->extradata_size) { + const int samplerate_table[] = { + 96000, 88200, 64000, 48000, 44100, 32000, + 24000, 22050, 16000, 12000, 11025, 8000, + 7350, 0, 0, 0 + }; + unsigned char *px = st->codec->extradata; + // 5 bits objectTypeIndex, 4 bits sampleRateIndex, 4 bits channels + int samplerate_index = ((px[0] & 7) << 1) + ((px[1] >> 7) & 1); + st->codec->sample_rate = samplerate_table[samplerate_index]; + st->codec->channels = (px[1] >> 3) & 15; + } + } + else if( st->codec->codec_tag == MKTAG( 'a', 'l', 'a', 'c' )) + { + /* Handle alac audio tag + special extradata */ + get_be32(pb); /* version */ + get_be32(pb); + st->codec->channels = get_be16(pb); /* channels */ + st->codec->bits_per_sample = get_be16(pb); /* bits per sample */ + get_be32(pb); + st->codec->sample_rate = get_be16(pb); + get_be16(pb); + + /* fetch the 36-byte extradata needed for alac decoding */ + st->codec->extradata_size = 36; + st->codec->extradata = (uint8_t*) + av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + get_buffer(pb, st->codec->extradata, st->codec->extradata_size); + } else if(size>=(16+20)) {//16 bytes read, reading atleast 20 more + uint16_t version; #ifdef DEBUG - printf("audio size=0x%X\n",size); + av_log(NULL, AV_LOG_DEBUG, "audio size=0x%X\n",size); #endif - uint16_t version = get_be16(pb); /* version */ + version = get_be16(pb); /* version */ get_be16(pb); /* revision level */ get_be32(pb); /* vendor */ - st->codec.channels = get_be16(pb); /* channel count */ - st->codec.bits_per_sample = get_be16(pb); /* sample size */ + st->codec->channels = get_be16(pb); /* channel count */ + st->codec->bits_per_sample = get_be16(pb); /* sample size */ /* handle specific s8 codec */ get_be16(pb); /* compression id = 0*/ get_be16(pb); /* packet size = 0 */ - st->codec.sample_rate = ((get_be32(pb) >> 16)); - //printf("CODECID %d %d %.4s\n", st->codec.codec_id, CODEC_ID_PCM_S16BE, (char*)&format); + st->codec->sample_rate = ((get_be32(pb) >> 16)); + //av_log(NULL, AV_LOG_DEBUG, "CODECID %d %d %.4s\n", st->codec->codec_id, CODEC_ID_PCM_S16BE, (char*)&format); - switch (st->codec.codec_id) { + switch (st->codec->codec_id) { case CODEC_ID_PCM_S16BE: - if (st->codec.bits_per_sample == 8) - st->codec.codec_id = CODEC_ID_PCM_S8; + if (st->codec->bits_per_sample == 8) + st->codec->codec_id = CODEC_ID_PCM_S8; /* fall */ case CODEC_ID_PCM_U8: - st->codec.bit_rate = st->codec.sample_rate * 8; + st->codec->bit_rate = st->codec->sample_rate * 8; break; default: ; @@ -944,8 +1177,8 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) //Read QT version 1 fields. In version 0 theese dont exist #ifdef DEBUG - printf("version =%d mp4=%d\n",version,c->mp4); - printf("size-(16+20+16)=%d\n",size-(16+20+16)); + av_log(NULL, AV_LOG_DEBUG, "version =%d mp4=%d\n",version,c->mp4); + av_log(NULL, AV_LOG_DEBUG, "size-(16+20+16)=%d\n",size-(16+20+16)); #endif if((version==1) && size>=(16+20+16)) { @@ -956,14 +1189,14 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) if(size>(16+20+16)) { //Optional, additional atom-based fields + MOV_atom_t a = { format, url_ftell(pb), size - (16 + 20 + 16 + 8) }; #ifdef DEBUG - printf("offest=0x%X, sizeleft=%d=0x%x,format=%c%c%c%c\n",(int)url_ftell(pb),size - (16 + 20 + 16 ),size - (16 + 20 + 16 ), + av_log(NULL, AV_LOG_DEBUG, "offest=0x%X, sizeleft=%d=0x%x,format=%c%c%c%c\n",(int)url_ftell(pb),size - (16 + 20 + 16 ),size - (16 + 20 + 16 ), (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, (format >> 24) & 0xff); #endif - MOV_atom_t a = { format, url_ftell(pb), size - (16 + 20 + 16 + 8) }; mov_read_default(c, pb, a); } } @@ -973,7 +1206,7 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) size-=(16+20); #ifdef DEBUG if(size>0) - printf("skipping 0x%X bytes\n",size-(16+20)); + av_log(NULL, AV_LOG_DEBUG, "skipping 0x%X bytes\n",size-(16+20)); #endif url_fskip(pb, size); } @@ -983,12 +1216,16 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) size-=16; //Unknown size, but lets do our best and skip the rest. #ifdef DEBUG - printf("Strange size, skipping 0x%X bytes\n",size); + av_log(NULL, AV_LOG_DEBUG, "Strange size, skipping 0x%X bytes\n",size); #endif url_fskip(pb, 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; + } return 0; } @@ -997,7 +1234,7 @@ 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; - int entries, i; + unsigned int i, entries; print_atom("stsc", atom); @@ -1005,8 +1242,12 @@ static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) 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 -printf("track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries); +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 = (MOV_sample_to_chunk_tbl*) av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl)); @@ -1017,7 +1258,39 @@ printf("track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries); sc->sample_to_chunk[i].count = get_be32(pb); sc->sample_to_chunk[i].id = get_be32(pb); #ifdef DEBUG -/* printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); */ +/* av_log(NULL, AV_LOG_DEBUG, "sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); */ +#endif + } + 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; + + print_atom("stss", atom); + + 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 = %ld\n", sc->keyframe_count); +#endif + sc->keyframes = (long*) 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; @@ -1027,7 +1300,7 @@ 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; - int entries, i; + unsigned int i, entries; print_atom("stsz", atom); @@ -1036,9 +1309,12 @@ static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) sc->sample_size = get_be32(pb); entries = get_be32(pb); + if(entries >= UINT_MAX / sizeof(long)) + return -1; + sc->sample_count = entries; #ifdef DEBUG - printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count); + av_log(NULL, AV_LOG_DEBUG, "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 */ @@ -1048,7 +1324,7 @@ static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) for(i=0; isample_sizes[i] = get_be32(pb); #ifdef DEBUG -/* printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */ + av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]); #endif } return 0; @@ -1058,19 +1334,23 @@ 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; - int entries, i; - int duration=0; - int total_sample_count=0; + unsigned int i, entries; + int64_t duration=0; + int64_t total_sample_count=0; print_atom("stts", atom); 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; + c->streams[c->fc->nb_streams-1]->stts_count = entries; + c->streams[c->fc->nb_streams-1]->stts_data = av_malloc(entries * sizeof(Time2Sample)); #ifdef DEBUG -printf("track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries); +av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries); #endif for(i=0; ifc->nb_streams-1, entries); sample_count=get_be32(pb); sample_duration = get_be32(pb); + c->streams[c->fc->nb_streams - 1]->stts_data[i].count= sample_count; + c->streams[c->fc->nb_streams - 1]->stts_data[i].duration= sample_duration; + #ifdef DEBUG - printf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration); + av_log(NULL, AV_LOG_DEBUG, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration); #endif duration+=sample_duration*sample_count; total_sample_count+=sample_count; + } -#if 0 //We calculate an average instead, needed by .mp4-files created with nec e606 3g phone + st->nb_frames= total_sample_count; + if(duration) + st->duration= duration; + return 0; +} - if (!i && st->codec.codec_type==CODEC_TYPE_VIDEO) { - st->codec.frame_rate_base = sample_duration ? sample_duration : 1; - st->codec.frame_rate = c->streams[c->total_streams]->time_scale; -#ifdef DEBUG - printf("VIDEO FRAME RATE= %i (sd= %i)\n", st->codec.frame_rate, sample_duration); -#endif - } -#endif - } +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; -#define MAX(a,b) a>b?a:b -#define MIN(a,b) a>b?b:a - /*The stsd atom which contain codec type sometimes comes after the stts so we cannot check for codec_type*/ - if(duration>0) - { - //Find greatest common divisor to avoid overflow using the Euclidean Algorithm... - uint32_t max=MAX(duration,total_sample_count); - uint32_t min=MIN(duration,total_sample_count); - uint32_t spare=max%min; - - while(spare!=0) - { - max=min; - min=spare; - spare=max%min; - } - - duration/=min; - total_sample_count/=min; + print_atom("ctts", atom); - //Only support constant frame rate. But lets calculate the average. Needed by .mp4-files created with nec e606 3g phone. - //To get better precision, we use the duration as frame_rate_base + 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; - st->codec.frame_rate_base=duration; - st->codec.frame_rate = c->streams[c->total_streams]->time_scale * total_sample_count; + c->streams[c->fc->nb_streams-1]->ctts_count = entries; + c->streams[c->fc->nb_streams-1]->ctts_data = av_malloc(entries * sizeof(Time2Sample)); -#ifdef DEBUG - printf("FRAME RATE average (video or audio)= %f (tot sample count= %i ,tot dur= %i timescale=%d)\n", (float)st->codec.frame_rate/st->codec.frame_rate_base,total_sample_count,duration,c->streams[c->total_streams]->time_scale); -#endif - } - else - { - st->codec.frame_rate_base = 1; - st->codec.frame_rate = c->streams[c->total_streams]->time_scale; +// #ifdef DEBUG +av_log(NULL, AV_LOG_DEBUG, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries); +// #endif + for(i=0; istreams[c->fc->nb_streams - 1]->ctts_data[i].count= get_be32(pb); + c->streams[c->fc->nb_streams - 1]->ctts_data[i].duration= get_be32(pb); } -#undef MAX -#undef MIN return 0; } @@ -1153,8 +1418,8 @@ static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) sc->sample_to_chunk_index = -1; st->priv_data = sc; - st->codec.codec_type = CODEC_TYPE_MOV_OTHER; - st->time_length = (c->duration * 1000) / c->time_scale; // time in miliseconds + st->codec->codec_type = CODEC_TYPE_MOV_OTHER; + st->start_time = 0; /* XXX: check */ c->streams[c->fc->nb_streams-1] = sc; return mov_read_default(c, pb, atom); @@ -1183,7 +1448,8 @@ static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) get_be32(pb); /* modification time */ st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/ get_be32(pb); /* reserved */ - st->time_length = get_be32(pb) * 1000 / c->time_scale; /* duration */ + st->start_time = 0; /* check */ + get_be32(pb); /* highlevel (considering edits) duration in movie timebase */ get_be32(pb); /* reserved */ get_be32(pb); /* reserved */ @@ -1195,8 +1461,8 @@ static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) url_fskip(pb, 36); /* display matrix */ /* those are fixed-point */ - st->codec.width = get_be32(pb) >> 16; /* track width */ - st->codec.height = get_be32(pb) >> 16; /* track height */ + /*st->codec->width =*/ get_be32(pb) >> 16; /* track width */ + /*st->codec->height =*/ get_be32(pb) >> 16; /* track height */ return 0; } @@ -1253,7 +1519,7 @@ static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' )) return -1; if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) { - dprintf("unknown compression for cmov atom !"); + av_log(NULL, AV_LOG_DEBUG, "unknown compression for cmov atom !"); return -1; } get_be32(pb); /* cmvd atom */ @@ -1290,17 +1556,38 @@ static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) } #endif +/* edit list atom */ +static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) +{ + int i, edit_count; + print_atom("elst", atom); + + 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); +#endif + return 0; +} + static const MOVParseTableEntry mov_default_parse_table[] = { /* mp4 atoms */ { MKTAG( 'c', 'o', '6', '4' ), mov_read_stco }, { MKTAG( 'c', 'p', 'r', 't' ), mov_read_default }, { MKTAG( 'c', 'r', 'h', 'd' ), mov_read_default }, -{ MKTAG( 'c', 't', 't', 's' ), mov_read_leaf }, /* composition time to sample */ +{ MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */ { MKTAG( 'd', 'i', 'n', 'f' ), mov_read_default }, /* data information */ { MKTAG( 'd', 'p', 'n', 'd' ), mov_read_leaf }, { MKTAG( 'd', 'r', 'e', 'f' ), mov_read_leaf }, { MKTAG( 'e', 'd', 't', 's' ), mov_read_default }, -{ MKTAG( 'e', 'l', 's', 't' ), mov_read_leaf }, +{ MKTAG( 'e', 'l', 's', 't' ), mov_read_elst }, { MKTAG( 'f', 'r', 'e', 'e' ), mov_read_leaf }, { MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr }, { MKTAG( 'h', 'i', 'n', 't' ), mov_read_leaf }, @@ -1319,16 +1606,17 @@ static const MOVParseTableEntry mov_default_parse_table[] = { { MKTAG( 'n', 'm', 'h', 'd' ), mov_read_leaf }, { MKTAG( 'o', 'd', 'h', 'd' ), mov_read_default }, { MKTAG( 's', 'd', 'h', 'd' ), mov_read_default }, -{ MKTAG( 's', 'k', 'i', 'p' ), mov_read_default }, +{ MKTAG( 's', 'k', 'i', 'p' ), mov_read_leaf }, { MKTAG( 's', 'm', 'h', 'd' ), mov_read_leaf }, /* sound media info header */ -{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorrenson extension ??? */ +{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */ +{ 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', 'd', 'p' ), mov_read_default }, { MKTAG( 's', 't', 's', 'c' ), mov_read_stsc }, { MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */ { MKTAG( 's', 't', 's', 'h' ), mov_read_default }, -{ MKTAG( 's', 't', 's', 's' ), mov_read_leaf }, /* sync sample */ +{ 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 */ @@ -1337,9 +1625,9 @@ static const MOVParseTableEntry mov_default_parse_table[] = { { MKTAG( 'u', 'd', 't', 'a' ), mov_read_leaf }, { MKTAG( 'u', 'r', 'l', ' ' ), mov_read_leaf }, { MKTAG( 'u', 'r', 'n', ' ' ), mov_read_leaf }, -{ MKTAG( 'u', 'u', 'i', 'd' ), mov_read_default }, +{ MKTAG( 'u', 'u', 'i', 'd' ), mov_read_leaf }, { MKTAG( 'v', 'm', 'h', 'd' ), mov_read_leaf }, /* video media info header */ -{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_default }, +{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave }, /* extra mp4 */ { MKTAG( 'M', 'D', 'E', 'S' ), mov_read_leaf }, /* QT atoms */ @@ -1371,11 +1659,13 @@ static const MOVParseTableEntry mov_default_parse_table[] = { static void mov_free_stream_context(MOVStreamContext *sc) { if(sc) { - av_free(sc->chunk_offsets); - av_free(sc->sample_to_chunk); - av_free(sc->sample_sizes); - av_free(sc->header_data); - av_free(sc); + av_freep(&sc->chunk_offsets); + av_freep(&sc->sample_to_chunk); + av_freep(&sc->sample_sizes); + av_freep(&sc->keyframes); + av_freep(&sc->stts_data); + av_freep(&sc->ctts_data); + av_freep(&sc); } } @@ -1394,6 +1684,7 @@ static int mov_probe(AVProbeData *p) { unsigned int offset; uint32_t tag; + int score = 0; /* check file header */ if (p->buf_size <= 12) @@ -1402,26 +1693,34 @@ static int mov_probe(AVProbeData *p) for(;;) { /* ignore invalid offset */ if ((offset + 8) > (unsigned int)p->buf_size) - return 0; + return score; tag = mov_to_tag(p->buf + offset + 4); switch(tag) { + /* check for obvious tags */ case MKTAG( 'm', 'o', 'o', 'v' ): - case MKTAG( 'w', 'i', 'd', 'e' ): - case MKTAG( 'f', 'r', 'e', 'e' ): 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 = to_be32(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 0; + return score; } } - return 0; + return score; } static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap) @@ -1439,23 +1738,23 @@ static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap) mov->mp4 = 1; #endif if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */ - atom.size = url_filesize(url_fileno(pb)); + atom.size = url_fsize(pb); else atom.size = 0x7FFFFFFFFFFFFFFFLL; #ifdef DEBUG - printf("filesz=%Ld\n", atom.size); + av_log(NULL, AV_LOG_DEBUG, "filesz=%Ld\n", atom.size); #endif /* check MOV header */ err = mov_read_default(mov, pb, atom); if (err<0 || (!mov->found_moov && !mov->found_mdat)) { - fprintf(stderr, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%lld\n", + av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%lld\n", err, mov->found_moov, mov->found_mdat, url_ftell(pb)); return -1; } #ifdef DEBUG - printf("on_parse_exit_offset=%d\n", (int) url_ftell(pb)); + av_log(NULL, AV_LOG_DEBUG, "on_parse_exit_offset=%d\n", (int) url_ftell(pb)); #endif /* some cleanup : make sure we are on the mdat atom */ if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset)) @@ -1464,17 +1763,17 @@ static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap) mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */ #ifdef DEBUG - printf("mdat_reset_offset=%d\n", (int) url_ftell(pb)); + av_log(NULL, AV_LOG_DEBUG, "mdat_reset_offset=%d\n", (int) url_ftell(pb)); #endif #ifdef DEBUG - printf("streams= %d\n", s->nb_streams); + av_log(NULL, AV_LOG_DEBUG, "streams= %d\n", s->nb_streams); #endif mov->total_streams = nb = s->nb_streams; #if 1 for(i=0; inb_streams;) { - if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */ + if(s->streams[i]->codec->codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */ av_free(s->streams[i]); for(j=i+1; jnb_streams; j++) s->streams[j-1] = s->streams[j]; @@ -1490,7 +1789,7 @@ static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap) } #endif #ifdef DEBUG - printf("real streams= %d\n", s->nb_streams); + av_log(NULL, AV_LOG_DEBUG, "real streams= %d\n", s->nb_streams); #endif return 0; } @@ -1501,21 +1800,26 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt) { MOVContext *mov = (MOVContext *) s->priv_data; MOVStreamContext *sc; - int64_t offset = 0x0FFFFFFFFFFFFFFFLL; - int i; + int64_t offset = INT64_MAX; + int64_t best_dts = INT64_MAX; + int i, a, b, m; int size; + int idx; size = 0x0FFFFFFF; #ifdef MOV_SPLIT_CHUNKS if (mov->partial) { - - int idx; - sc = mov->partial; idx = sc->sample_to_chunk_index; if (idx < 0) return 0; - size = sc->sample_sizes[sc->current_sample]; +#ifdef DEBUG + fprintf(stderr, "sc[ffid %d]->sample_size = %d\n", sc->ffindex, sc->sample_size); +#endif + //size = sc->sample_sizes[sc->current_sample]; + // that ain't working... + //size = (sc->sample_size)?sc->sample_size:sc->sample_sizes[sc->current_sample]; + size = (sc->sample_size > 1)?sc->sample_size:sc->sample_sizes[sc->current_sample]; sc->current_sample++; sc->left_in_chunk--; @@ -1531,17 +1835,44 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt) again: sc = 0; + if(offset == INT64_MAX) + best_dts= INT64_MAX; for(i=0; itotal_streams; i++) { MOVStreamContext *msc = mov->streams[i]; - //printf("MOCHUNK %ld %d %p pos:%Ld\n", mov->streams[i]->next_chunk, mov->total_streams, mov->streams[i], url_ftell(&s->pb)); - if ((msc->next_chunk < msc->chunk_count) && msc->next_chunk >= 0 - && (msc->chunk_offsets[msc->next_chunk] < offset)) { - sc = msc; - offset = msc->chunk_offsets[msc->next_chunk]; - //printf("SELETED %Ld i:%d\n", offset, i); + + if ((msc->next_chunk < msc->chunk_count) && msc->next_chunk >= 0){ + if (msc->sample_to_time_index < msc->stts_count && mov->ni) { + int64_t dts; + int index= msc->sample_to_time_index; + int sample= msc->sample_to_time_sample; + int time= msc->sample_to_time_time; + int duration = msc->stts_data[index].duration; + int count = msc->stts_data[index].count; + if (sample + count < msc->current_sample) { + sample += count; + time += count*duration; + index ++; + duration = msc->stts_data[index].duration; + } + dts = time + (msc->current_sample-1 - sample) * (int64_t)duration; + dts = av_rescale(dts, AV_TIME_BASE, msc->time_scale); +// av_log(NULL, AV_LOG_DEBUG, "%d %Ld %Ld %Ld \n", i, dts, best_dts, offset); + if(dts < best_dts){ + best_dts= dts; + sc = msc; + offset = msc->chunk_offsets[msc->next_chunk]; + } + }else{ + //av_log(NULL, AV_LOG_DEBUG, "MOCHUNK %ld %d %p pos:%Ld\n", mov->streams[i]->next_chunk, mov->total_streams, mov->streams[i], url_ftell(&s->pb)); + if ((msc->chunk_offsets[msc->next_chunk] < offset)) { + sc = msc; + offset = msc->chunk_offsets[msc->next_chunk]; + //av_log(NULL, AV_LOG_DEBUG, "SELETED %Ld i:%d\n", offset, i); + } + } } } - if (!sc || offset==0x0FFFFFFFFFFFFFFFLL) + if (!sc || offset==INT64_MAX) return -1; sc->next_chunk++; @@ -1551,11 +1882,11 @@ again: mov->next_chunk_offset = offset; } -//printf("chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset); - if(!sc->is_ff_stream) { +//av_log(NULL, AV_LOG_DEBUG, "chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset); + if(!sc->is_ff_stream || (s->streams[sc->ffindex]->discard >= AVDISCARD_ALL)) { url_fskip(&s->pb, (offset - mov->next_chunk_offset)); mov->next_chunk_offset = offset; - offset = 0x0FFFFFFFFFFFFFFFLL; + offset = INT64_MAX; goto again; } @@ -1564,7 +1895,8 @@ again: for(i=0; itotal_streams; i++) { MOVStreamContext *msc = mov->streams[i]; if ((msc->next_chunk < msc->chunk_count) - && ((msc->chunk_offsets[msc->next_chunk] - offset) < size)) + && msc->chunk_offsets[msc->next_chunk] - offset < size + && msc->chunk_offsets[msc->next_chunk] > offset) size = msc->chunk_offsets[msc->next_chunk] - offset; } @@ -1576,45 +1908,54 @@ again: if (sc->sample_size > 0) { int foundsize=0; for(i=0; i<(sc->sample_to_chunk_sz); i++) { - if( (sc->sample_to_chunk[i].first)<=(sc->next_chunk) && (sc->sample_size>0) ) + if( (sc->sample_to_chunk[i].first)<=(sc->next_chunk) ) { - foundsize=sc->sample_to_chunk[i].count*sc->sample_size; + // I can't figure out why for PCM audio sample_size is always 1 + // (it should actually be channels*bits_per_second/8) but it is. + AVCodecContext* cod = s->streams[sc->ffindex]->codec; + if (sc->sample_size == 1 && (cod->codec_id == CODEC_ID_PCM_S16BE || cod->codec_id == CODEC_ID_PCM_S16LE)) + foundsize=(sc->sample_to_chunk[i].count*cod->channels*cod->bits_per_sample)/8; + else + foundsize=sc->sample_to_chunk[i].count*sc->sample_size; } #ifdef DEBUG - /*printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id);*/ + av_log(NULL, AV_LOG_DEBUG, "sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); #endif } if( (foundsize>0) && (foundsizesample_to_chunk_index; + if (idx + 1 < sc->sample_to_chunk_sz && sc->next_chunk >= sc->sample_to_chunk[idx + 1].first) + idx++; + sc->sample_to_chunk_index = idx; #ifdef MOV_SPLIT_CHUNKS /* split chunks into samples */ - if (sc->sample_size == 0) { - int idx = sc->sample_to_chunk_index; - if ((idx + 1 < sc->sample_to_chunk_sz) - && (sc->next_chunk >= sc->sample_to_chunk[idx + 1].first)) - idx++; - sc->sample_to_chunk_index = idx; + if (sc->sample_size == 0 || sc->sample_size > 100) { if (idx >= 0 && sc->sample_to_chunk[idx].count != 1) { mov->partial = sc; /* we'll have to get those samples before next chunk */ sc->left_in_chunk = sc->sample_to_chunk[idx].count - 1; - size = sc->sample_sizes[sc->current_sample]; + size = (sc->sample_size > 1)?sc->sample_size:sc->sample_sizes[sc->current_sample]; } sc->current_sample++; + }else if(idx + 1 < sc->sample_to_chunk_sz){ + sc->current_sample += sc->sample_size * sc->sample_to_chunk[idx].count; } #endif readchunk: -//printf("chunk: [%i] %lli -> %lli (%i)\n", st_id, offset, offset + size, size); +#ifdef DEBUG + av_log(NULL, AV_LOG_DEBUG, "chunk: %lli -> %lli (%i)\n", offset, offset + size, size); +#endif if(size == 0x0FFFFFFF) size = mov->mdat_size + mov->mdat_offset - offset; if(size < 0) @@ -1623,44 +1964,314 @@ readchunk: return -1; url_fseek(&s->pb, offset, SEEK_SET); - //printf("READCHUNK hlen: %d %d off: %Ld pos:%Ld\n", size, sc->header_len, offset, url_ftell(&s->pb)); - if (sc->header_len > 0) { - av_new_packet(pkt, size + sc->header_len); - memcpy(pkt->data, sc->header_data, sc->header_len); - get_buffer(&s->pb, pkt->data + sc->header_len, size); - /* free header */ - av_freep(&sc->header_data); - sc->header_len = 0; - } else { - av_new_packet(pkt, size); - get_buffer(&s->pb, pkt->data, pkt->size); - } + av_get_packet(&s->pb, pkt, size); pkt->stream_index = sc->ffindex; + + // If the keyframes table exists, mark any samples that are in the table as key frames. + // If no table exists, treat very sample as a key frame. + if (sc->keyframes) { + a = 0; + b = sc->keyframe_count - 1; + + while (a < b) { + m = (a + b + 1) >> 1; + if (sc->keyframes[m] > sc->current_sample) { + b = m - 1; + } else { + a = m; + } + } + + if (sc->keyframes[a] == sc->current_sample) + pkt->flags |= PKT_FLAG_KEY; + } + else + pkt->flags |= PKT_FLAG_KEY; #ifdef DEBUG /* - printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size); + av_log(NULL, AV_LOG_DEBUG, "Packet (%d, %ld) ", pkt->stream_index, pkt->size); for(i=0; i<8; i++) - printf("%02x ", pkt->data[i]); + av_log(NULL, AV_LOG_DEBUG, "%02x ", pkt->data[i]); for(i=0; i<8; i++) - printf("%c ", (pkt->data[i]) & 0x7F); - puts(""); + av_log(NULL, AV_LOG_DEBUG, "%c ", (pkt->data[i]) & 0x7F); + av_log(NULL, AV_LOG_DEBUG, "\n"); */ #endif mov->next_chunk_offset = offset + size; + + /* find the corresponding dts */ + if (sc && sc->sample_to_time_index < sc->stts_count && pkt) { + unsigned int count; + uint64_t dts, pts; + unsigned int duration = sc->stts_data[sc->sample_to_time_index].duration; + count = sc->stts_data[sc->sample_to_time_index].count; + if ((sc->sample_to_time_sample + count) < sc->current_sample) { + sc->sample_to_time_sample += count; + sc->sample_to_time_time += count*duration; + sc->sample_to_time_index ++; + duration = sc->stts_data[sc->sample_to_time_index].duration; + } + dts = sc->sample_to_time_time + (sc->current_sample-1 - sc->sample_to_time_sample) * (int64_t)duration; + /* find the corresponding pts */ + if (sc->sample_to_ctime_index < sc->ctts_count) { + int duration = sc->ctts_data[sc->sample_to_ctime_index].duration; + int count = sc->ctts_data[sc->sample_to_ctime_index].count; + + if ((sc->sample_to_ctime_sample + count) < sc->current_sample) { + sc->sample_to_ctime_sample += count; + sc->sample_to_ctime_index ++; + duration = sc->ctts_data[sc->sample_to_ctime_index].duration; + } + pts = dts + duration; + }else + pts = dts; + pkt->pts = pts; + pkt->dts = dts; +#ifdef DEBUG + av_log(NULL, AV_LOG_DEBUG, "stream #%d smp #%ld dts = %lld pts = %lld (smp:%ld time:%lld idx:%d ent:%d count:%d dur:%d)\n" + , pkt->stream_index, sc->current_sample-1, pkt->dts, pkt->pts + , sc->sample_to_time_sample + , sc->sample_to_time_time + , sc->sample_to_time_index + , sc->stts_count + , count + , duration); +#endif + } return 0; } +#if defined(MOV_SPLIT_CHUNKS) && defined(MOV_SEEK) +/** + * Seek method based on the one described in the Appendix C of QTFileFormat.pdf + */ +static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags) +{ + MOVContext* mov = (MOVContext *) s->priv_data; + MOVStreamContext* sc; + int32_t i, a, b, m; + int64_t start_time; + int32_t seek_sample, sample; + int32_t duration; + int32_t count; + int32_t chunk; + int32_t left_in_chunk; + int64_t chunk_file_offset; + int64_t sample_file_offset; + int32_t first_chunk_sample; + int32_t sample_to_chunk_idx; + int sample_to_time_index; + long sample_to_time_sample = 0; + uint64_t sample_to_time_time = 0; + int mov_idx; + + // Find the corresponding mov stream + for (mov_idx = 0; mov_idx < mov->total_streams; mov_idx++) + if (mov->streams[mov_idx]->ffindex == stream_index) + break; + if (mov_idx == mov->total_streams) { + av_log(s, AV_LOG_ERROR, "mov: requested stream was not found in mov streams (idx=%i)\n", stream_index); + return -1; + } + sc = mov->streams[mov_idx]; + + // Step 1. Find the edit that contains the requested time (elst) + if (sc->edit_count) { + // FIXME should handle edit list + av_log(s, AV_LOG_ERROR, "mov: does not handle seeking in files that contain edit list (c:%d)\n", sc->edit_count); + return -1; + } + + // Step 2. Find the corresponding sample using the Time-to-sample atom (stts) */ +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Searching for time %li in stream #%i (time_scale=%i)\n", (long)timestamp, mov_idx, sc->time_scale); +#endif + start_time = 0; // FIXME use elst atom + sample = 1; // sample are 0 based in table +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Searching for sample_time %li \n", (long)sample_time); +#endif + for (i = 0; i < sc->stts_count; i++) { + count = sc->stts_data[i].count; + duration = sc->stts_data[i].duration; +//av_log(s, AV_LOG_DEBUG, "> sample_time %lli \n", (long)sample_time); +//av_log(s, AV_LOG_DEBUG, "> count=%i duration=%i\n", count, duration); + if ((start_time + count*duration) > sample_time) { + sample_to_time_time = start_time; + sample_to_time_index = i; + sample_to_time_sample = sample; + sample += (sample_time - start_time) / duration; + break; + } + sample += count; + start_time += count * duration; + } + sample_to_time_time = start_time; + sample_to_time_index = i; + /* NOTE: despite what qt doc say, the dt value (Display Time in qt vocabulary) computed with the stts atom + is a decoding time stamp (dts) not a presentation time stamp. And as usual dts != pts for stream with b frames */ + +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Found time %li at sample #%u\n", (long)sample_time, sample); +#endif + if (sample > sc->sample_count) { + av_log(s, AV_LOG_ERROR, "mov: sample pos is too high, unable to seek (req. sample=%i, sample count=%ld)\n", sample, sc->sample_count); + return -1; + } + + // Step 3. Find the prior sync. sample using the Sync sample atom (stss) + if (sc->keyframes) { + a = 0; + b = sc->keyframe_count - 1; + while (a < b) { + m = (a + b + 1) >> 1; + if (sc->keyframes[m] > sample) { + b = m - 1; + } else { + a = m; + } +#ifdef DEBUG + // av_log(s, AV_LOG_DEBUG, "a=%i (%i) b=%i (%i) m=%i (%i) stream #%i\n", a, sc->keyframes[a], b, sc->keyframes[b], m, sc->keyframes[m], mov_idx); +#endif + } + // for low latency prob: always use the previous keyframe, just uncomment the next line + // if (a) a--; + seek_sample = sc->keyframes[a]; + } + else + seek_sample = sample; // else all samples are key frames +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Found nearest keyframe at sample #%i \n", seek_sample); +#endif + + // Step 4. Find the chunk of the sample using the Sample-to-chunk-atom (stsc) + for (first_chunk_sample = 1, i = 0; i < (sc->sample_to_chunk_sz - 1); i++) { + b = (sc->sample_to_chunk[i + 1].first - sc->sample_to_chunk[i].first) * sc->sample_to_chunk[i].count; + if (seek_sample >= first_chunk_sample && seek_sample < (first_chunk_sample + b)) + break; + first_chunk_sample += b; + } + chunk = sc->sample_to_chunk[i].first + (seek_sample - first_chunk_sample) / sc->sample_to_chunk[i].count; + left_in_chunk = sc->sample_to_chunk[i].count - (seek_sample - first_chunk_sample) % sc->sample_to_chunk[i].count; + first_chunk_sample += ((seek_sample - first_chunk_sample) / sc->sample_to_chunk[i].count) * sc->sample_to_chunk[i].count; + sample_to_chunk_idx = i; +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Sample was found in chunk #%i at sample offset %i (idx %i)\n", chunk, seek_sample - first_chunk_sample, sample_to_chunk_idx); +#endif + + // Step 5. Find the offset of the chunk using the chunk offset atom + if (!sc->chunk_offsets) { + av_log(s, AV_LOG_ERROR, "mov: no chunk offset atom, unable to seek\n"); + return -1; + } + if (chunk > sc->chunk_count) { + av_log(s, AV_LOG_ERROR, "mov: chunk offset atom too short, unable to seek (req. chunk=%i, chunk count=%li)\n", chunk, sc->chunk_count); + return -1; + } + chunk_file_offset = sc->chunk_offsets[chunk - 1]; +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Chunk file offset is #%llu \n", chunk_file_offset); +#endif + + // Step 6. Find the byte offset within the chunk using the sample size atom + sample_file_offset = chunk_file_offset; + if (sc->sample_size) + sample_file_offset += (seek_sample - first_chunk_sample) * sc->sample_size; + else { + for (i = 0; i < (seek_sample - first_chunk_sample); i++) { + sample_file_offset += sc->sample_sizes[first_chunk_sample + i - 1]; + } + } +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Sample file offset is #%llu \n", sample_file_offset); +#endif + + // Step 6. Update the parser + mov->partial = sc; + mov->next_chunk_offset = sample_file_offset; + // Update current stream state + sc->current_sample = seek_sample - 1; // zero based + sc->left_in_chunk = left_in_chunk; + sc->next_chunk = chunk; // +1 -1 (zero based) + sc->sample_to_chunk_index = sample_to_chunk_idx; + + // Update other streams + for (i = 0; itotal_streams; i++) { + MOVStreamContext *msc; + if (i == mov_idx) continue; + // Find the nearest 'next' chunk + msc = mov->streams[i]; + a = 0; + b = msc->chunk_count - 1; + while (a < b) { + m = (a + b + 1) >> 1; + if (msc->chunk_offsets[m] > chunk_file_offset) { + b = m - 1; + } else { + a = m; + } +#ifdef DEBUG +/* av_log(s, AV_LOG_DEBUG, "a=%i (%li) b=%i (%li) m=%i (%li) stream #%i\n" + , a, (long)msc->chunk_offsets[a], b, (long)msc->chunk_offsets[b], m, (long)msc->chunk_offsets[m], i); */ +#endif + } + msc->next_chunk = a; + if (msc->chunk_offsets[a] < chunk_file_offset && a < (msc->chunk_count-1)) + msc->next_chunk ++; +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Nearest next chunk for stream #%i is #%i @%lli\n", i, msc->next_chunk+1, msc->chunk_offsets[msc->next_chunk]); +#endif + // Compute sample count and index in the sample_to_chunk table (what a pity) + msc->sample_to_chunk_index = 0; + msc->current_sample = 0; + for(; msc->sample_to_chunk_index < (msc->sample_to_chunk_sz - 1) + && msc->sample_to_chunk[msc->sample_to_chunk_index + 1].first <= (1 + msc->next_chunk); msc->sample_to_chunk_index++) { + msc->current_sample += (msc->sample_to_chunk[msc->sample_to_chunk_index + 1].first - msc->sample_to_chunk[msc->sample_to_chunk_index].first) \ + * msc->sample_to_chunk[msc->sample_to_chunk_index].count; + } + msc->current_sample += (msc->next_chunk - (msc->sample_to_chunk[msc->sample_to_chunk_index].first - 1)) * sc->sample_to_chunk[msc->sample_to_chunk_index].count; + msc->left_in_chunk = msc->sample_to_chunk[msc->sample_to_chunk_index].count - 1; + // Find corresponding position in stts (used later to compute dts) + sample = 0; + start_time = 0; + for (msc->sample_to_time_index = 0; msc->sample_to_time_index < msc->stts_count; msc->sample_to_time_index++) { + count = msc->stts_data[msc->sample_to_time_index].count; + duration = msc->stts_data[msc->sample_to_time_index].duration; + if ((sample + count - 1) > msc->current_sample) { + msc->sample_to_time_time = start_time; + msc->sample_to_time_sample = sample; + break; + } + sample += count; + start_time += count * duration; + } + sample = 0; + for (msc->sample_to_ctime_index = 0; msc->sample_to_ctime_index < msc->ctts_count; msc->sample_to_ctime_index++) { + count = msc->ctts_data[msc->sample_to_ctime_index].count; + duration = msc->ctts_data[msc->sample_to_ctime_index].duration; + if ((sample + count - 1) > msc->current_sample) { + msc->sample_to_ctime_sample = sample; + break; + } + sample += count; + } +#ifdef DEBUG + av_log(s, AV_LOG_DEBUG, "Next Sample for stream #%i is #%i @%i\n", i, msc->current_sample + 1, msc->sample_to_chunk_index + 1); +#endif + } + return 0; +} +#endif + 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]); - for(i=0; inb_streams; i++) - av_freep(&s->streams[i]); /* free color tabs */ for(i=0; ictab_size; i++) av_freep(&mov->ctab[i]); @@ -1669,13 +2280,16 @@ static int mov_read_close(AVFormatContext *s) } static AVInputFormat mov_iformat = { - "mov", + "mov,mp4,m4a,3gp,3g2", "QuickTime/MPEG4 format", sizeof(MOVContext), mov_probe, mov_read_header, mov_read_packet, mov_read_close, +#if defined(MOV_SPLIT_CHUNKS) && defined(MOV_SEEK) + mov_read_seek, +#endif }; int mov_init(void)