// QuickTime MOV file parser by A'rpi // additional work by Atmos // based on TOOLS/movinfo.c by A'rpi & Al3x // compressed header support from moov.c of the openquicktime lib. // References: http://openquicktime.sf.net/, http://www.heroinewarrior.com/ // http://www.geocities.com/SiliconValley/Lakes/2160/fformats/files/mov.pdf // (above url no longer works, file mirrored somewhere? ::atmos) // The QuickTime File Format PDF from Apple: // http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf // (Complete list of documentation at http://developer.apple.com/quicktime/) // MP4-Lib sources from http://mpeg4ip.sf.net/ might be usefull fot .mp4 // aswell as .mov specific stuff. // All sort of Stuff about MPEG4: // http://www.cmlab.csie.ntu.edu.tw/~pkhsiao/thesis.html // I really recommend N4270-1.doc and N4270-2.doc which are exact specs // of the MP4-File Format and the MPEG4 Specific extensions. ::atmos #include #include #include #include "config.h" #include "mp_msg.h" #include "help_mp.h" #include "stream.h" #include "demuxer.h" #include "stheader.h" #include "bswap.h" #include "qtpalette.h" #include "parse_mp4.h" // .MP4 specific stuff #ifdef MACOSX #include #else #include "../loader/qtx/qtxsdk/components.h" #endif #ifdef HAVE_ZLIB #include #endif #ifndef _FCNTL_H #include #endif #define BE_16(x) (((unsigned char *)(x))[0] << 8 | \ ((unsigned char *)(x))[1]) #define BE_32(x) (((unsigned char *)(x))[0] << 24 | \ ((unsigned char *)(x))[1] << 16 | \ ((unsigned char *)(x))[2] << 8 | \ ((unsigned char *)(x))[3]) #define char2short(x,y) BE_16(&(x)[(y)]) #define char2int(x,y) BE_32(&(x)[(y)]) typedef struct { unsigned int pts; // duration unsigned int size; off_t pos; } mov_sample_t; typedef struct { unsigned int sample; // number of the first sample in the chunk unsigned int size; // number of samples in the chunk int desc; // for multiple codecs mode - not used off_t pos; } mov_chunk_t; typedef struct { unsigned int first; unsigned int spc; unsigned int sdid; } mov_chunkmap_t; typedef struct { unsigned int num; unsigned int dur; } mov_durmap_t; typedef struct { unsigned int dur; unsigned int pos; int speed; // int frames; int start_sample; int start_frame; int pts_offset; } mov_editlist_t; #define MOV_TRAK_UNKNOWN 0 #define MOV_TRAK_VIDEO 1 #define MOV_TRAK_AUDIO 2 #define MOV_TRAK_FLASH 3 #define MOV_TRAK_GENERIC 4 #define MOV_TRAK_CODE 5 typedef struct { int id; int type; off_t pos; // unsigned int media_handler; unsigned int data_handler; // int timescale; unsigned int length; int samplesize; // 0 = variable int duration; // 0 = variable int width,height; // for video unsigned int fourcc; unsigned int nchannels; unsigned int samplebytes; // int tkdata_len; // track data unsigned char* tkdata; int stdata_len; // stream data unsigned char* stdata; // unsigned char* stream_header; int stream_header_len; // if >0, this header should be sent before the 1st frame // int samples_size; mov_sample_t* samples; int chunks_size; mov_chunk_t* chunks; int chunkmap_size; mov_chunkmap_t* chunkmap; int durmap_size; mov_durmap_t* durmap; int keyframes_size; unsigned int* keyframes; int editlist_size; mov_editlist_t* editlist; int editlist_pos; // void* desc; // image/sound/etc description (pointer to ImageDescription etc) } mov_track_t; void mov_build_index(mov_track_t* trak,int timescale){ int i,j,s; int last=trak->chunks_size; unsigned int pts=0; #if 0 if (trak->chunks_size <= 0) { mp_msg(MSGT_DEMUX, MSGL_WARN, "No chunk offset table, trying to build one!\n"); trak->chunks_size = trak->samples_size; /* XXX: FIXME ! */ trak->chunks = realloc(trak->chunks, sizeof(mov_chunk_t)*trak->chunks_size); for (i=0; i < trak->chunks_size; i++) trak->chunks[i].pos = -1; } #endif mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV track #%d: %d chunks, %d samples\n",trak->id,trak->chunks_size,trak->samples_size); mp_msg(MSGT_DEMUX, MSGL_V, "pts=%d scale=%d time=%5.3f\n",trak->length,trak->timescale,(float)trak->length/(float)trak->timescale); // process chunkmap: i=trak->chunkmap_size; while(i>0){ --i; for(j=trak->chunkmap[i].first;jchunks[j].desc=trak->chunkmap[i].sdid; trak->chunks[j].size=trak->chunkmap[i].spc; } last=trak->chunkmap[i].first; } #if 0 for (i=0; i < trak->chunks_size; i++) { /* fixup position */ if (trak->chunks[i].pos == -1) if (i > 0) trak->chunks[i].pos = trak->chunks[i-1].pos + trak->chunks[i-1].size; else trak->chunks[i].pos = 0; /* FIXME: set initial pos */ #endif // calc pts of chunks: s=0; for(j=0;jchunks_size;j++){ trak->chunks[j].sample=s; s+=trak->chunks[j].size; } // workaround for fixed-size video frames (dv and uncompressed) if(!trak->samples_size && trak->type!=MOV_TRAK_AUDIO){ trak->samples_size=s; trak->samples=malloc(sizeof(mov_sample_t)*s); for(i=0;isamples[i].size=trak->samplesize; trak->samplesize=0; } if(!trak->samples_size){ // constant sampesize if(trak->durmap_size==1 || (trak->durmap_size==2 && trak->durmap[1].num==1)){ trak->duration=trak->durmap[0].dur; } else mp_msg(MSGT_DEMUX, MSGL_ERR, "*** constant samplesize & variable duration not yet supported! ***\nContact the author if you have such sample file!\n"); return; } // calc pts: s=0; for(j=0;jdurmap_size;j++){ for(i=0;idurmap[j].num;i++){ trak->samples[s].pts=pts; ++s; pts+=trak->durmap[j].dur; } } // calc sample offsets s=0; for(j=0;jchunks_size;j++){ off_t pos=trak->chunks[j].pos; for(i=0;ichunks[j].size;i++){ trak->samples[s].pos=pos; mp_msg(MSGT_DEMUX, MSGL_DBG3, "Sample %5d: pts=%8d off=0x%08X size=%d\n",s, trak->samples[s].pts, (int)trak->samples[s].pos, trak->samples[s].size); pos+=trak->samples[s].size; ++s; } } // precalc editlist entries if(trak->editlist_size>0){ int frame=0; int e_pts=0; for(i=0;ieditlist_size;i++){ mov_editlist_t* el=&trak->editlist[i]; int sample=0; int pts=el->pos; el->start_frame=frame; if(pts<0){ // skip! el->frames=0; continue; } // find start sample for(;samplesamples_size;sample++){ if(pts<=trak->samples[sample].pts) break; } el->start_sample=sample; el->pts_offset=((long long)e_pts*(long long)trak->timescale)/(long long)timescale-trak->samples[sample].pts; pts+=((long long)el->dur*(long long)trak->timescale)/(long long)timescale; e_pts+=el->dur; // find end sample for(;samplesamples_size;sample++){ if(pts<=trak->samples[sample].pts) break; } el->frames=sample-el->start_sample; frame+=el->frames; mp_msg(MSGT_DEMUX,MSGL_V,"EL#%d: pts=%d 1st_sample=%d frames=%d (%5.3fs) pts_offs=%d\n",i, el->pos,el->start_sample, el->frames, (float)(el->dur)/(float)timescale, el->pts_offset); } } } #define MOV_MAX_TRACKS 256 typedef struct { off_t moov_start; off_t moov_end; off_t mdat_start; off_t mdat_end; int track_db; mov_track_t* tracks[MOV_MAX_TRACKS]; int timescale; // movie timescale int duration; // movie duration (in movie timescale units) } mov_priv_t; #define MOV_FOURCC(a,b,c,d) ((a<<24)|(b<<16)|(c<<8)|(d)) int mov_check_file(demuxer_t* demuxer){ int flags=0; int no=0; mov_priv_t* priv=malloc(sizeof(mov_priv_t)); mp_msg(MSGT_DEMUX,MSGL_V,"Checking for MOV\n"); memset(priv,0,sizeof(mov_priv_t)); while(1){ int i; int skipped=8; off_t len=stream_read_dword(demuxer->stream); unsigned int id=stream_read_dword(demuxer->stream); if(stream_eof(demuxer->stream)) break; // EOF if (len == 1) /* real size is 64bits - cjb */ { #ifndef _LARGEFILE_SOURCE if (stream_read_dword(demuxer->stream) != 0) mp_msg(MSGT_DEMUX, MSGL_WARN, "64bit file, but you've compiled MPlayer without LARGEFILE support!\n"); len = stream_read_dword(demuxer->stream); #else len = stream_read_qword(demuxer->stream); #endif skipped += 8; } #if 0 else if (len == 0) /* deleted chunk */ { /* XXX: CJB! is this right? - alex */ goto skip_chunk; } #endif else if(len<8) break; // invalid chunk switch(id){ case MOV_FOURCC('f','t','y','p'): { unsigned int tmp; // File Type Box (ftyp): // char[4] major_brand (eg. 'isom') // int minor_version (eg. 0x00000000) // char[4] compatible_brands[] (eg. 'mp41') // compatible_brands list spans to the end of box #if 1 tmp = stream_read_dword(demuxer->stream); switch(tmp) { case MOV_FOURCC('i','s','o','m'): mp_msg(MSGT_DEMUX,MSGL_V,"ISO: File Type Major Brand: ISO Base Media\n"); break; case MOV_FOURCC('m','p','4','1'): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: ISO/IEC 14496-1 (MPEG-4 system) v1\n"); break; case MOV_FOURCC('m','p','4','2'): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: ISO/IEC 14496-1 (MPEG-4 system) v2\n"); break; case MOV_FOURCC('M','4','A',' '): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: Apple iTunes AAC-LC Audio\n"); break; case MOV_FOURCC('M','4','P',' '): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: Apple iTunes AAC-LC Protected Audio\n"); break; case MOV_FOURCC('q','t',' ',' '): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: Original QuickTime\n"); break; case MOV_FOURCC('3','g','p','1'): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: 3GPP Profile 1\n"); break; case MOV_FOURCC('3','g','p','2'): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: 3GPP Profile 2\n"); break; case MOV_FOURCC('3','g','p','3'): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: 3GPP Profile 3\n"); break; case MOV_FOURCC('3','g','p','4'): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: 3GPP Profile 4\n"); break; case MOV_FOURCC('3','g','p','5'): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: 3GPP Profile 5\n"); break; case MOV_FOURCC('m','m','p','4'): mp_msg(MSGT_DEMUX,MSGL_INFO,"ISO: File Type Major Brand: Mobile ISO/IEC 14496-1 (MPEG-4 system)\n"); break; default: tmp = be2me_32(tmp); mp_msg(MSGT_DEMUX,MSGL_WARN,"ISO: Unknown File Type Major Brand: %.4s\n",&tmp); } mp_msg(MSGT_DEMUX,MSGL_V,"ISO: File Type Minor Version: %d\n", stream_read_dword(demuxer->stream)); skipped += 8; // List all compatible brands for(i = 0; i < ((len-16)/4); i++) { tmp = be2me_32(stream_read_dword(demuxer->stream)); mp_msg(MSGT_DEMUX,MSGL_V,"ISO: File Type Compatible Brand #%d: %.4s\n",i,&tmp); skipped += 4; } #endif } break; case MOV_FOURCC('m','o','o','v'): // case MOV_FOURCC('c','m','o','v'): mp_msg(MSGT_DEMUX,MSGL_V,"MOV: Movie header found!\n"); priv->moov_start=(off_t)stream_tell(demuxer->stream); priv->moov_end=(off_t)priv->moov_start+len-skipped; mp_msg(MSGT_DEMUX,MSGL_DBG2,"MOV: Movie header: start: %x end: %x\n", priv->moov_start, priv->moov_end); skipped+=8; i = stream_read_dword(demuxer->stream)-8; if(stream_read_dword(demuxer->stream)==MOV_FOURCC('r','m','r','a')){ int ref=0; skipped+=i; mp_msg(MSGT_DEMUX,MSGL_INFO,"MOV: Reference Media file!!!\n"); //set demuxer type to playlist ... demuxer->type=DEMUXER_TYPE_PLAYLIST; while(i>0){ int len=stream_read_dword(demuxer->stream)-8; int fcc=stream_read_dword(demuxer->stream); if(len<0) break; // EOF!? i-=8; // printf("i=%d len=%d\n",i,len); switch(fcc){ case MOV_FOURCC('r','m','d','a'): continue; case MOV_FOURCC('r','d','r','f'): { int tmp=stream_read_dword(demuxer->stream); int type=stream_read_dword_le(demuxer->stream); int slen=stream_read_dword(demuxer->stream); //char* s=malloc(slen+1); //stream_read(demuxer->stream,s,slen); //FIXME: also store type & data_rate ? ds_read_packet(demuxer->video, demuxer->stream, slen, 0, stream_tell(demuxer->stream), 0 // no flags ); flags|=4; mp_msg(MSGT_DEMUX,MSGL_V,"Added reference to playlist\n"); //s[slen]=0; //mp_msg(MSGT_DEMUX,MSGL_INFO,"REF: [%.4s] %s\n",&type,s); len-=12+slen;i-=12+slen; break; } case MOV_FOURCC('r','m','d','r'): { int flags=stream_read_dword(demuxer->stream); int rate=stream_read_dword(demuxer->stream); mp_msg(MSGT_DEMUX,MSGL_V," min. data rate: %d bits/sec\n",rate); len-=8; i-=8; break; } case MOV_FOURCC('r','m','q','u'): { int q=stream_read_dword(demuxer->stream); mp_msg(MSGT_DEMUX,MSGL_V," quality index: %d\n",q); len-=4; i-=4; break; } } i-=len;stream_skip(demuxer->stream,len); } } flags|=1; break; case MOV_FOURCC('w','i','d','e'): mp_msg(MSGT_DEMUX,MSGL_V,"MOV: 'WIDE' chunk found!\n"); if(flags&2) break; case MOV_FOURCC('m','d','a','t'): mp_msg(MSGT_DEMUX,MSGL_V,"MOV: Movie DATA found!\n"); priv->mdat_start=stream_tell(demuxer->stream); priv->mdat_end=priv->mdat_start+len-skipped; mp_msg(MSGT_DEMUX,MSGL_DBG2,"MOV: Movie data: start: %x end: %x\n", priv->mdat_start, priv->mdat_end); flags|=2; if(flags==3){ // if we're over the headers, then we can stop parsing here! demuxer->priv=priv; return 1; } break; case MOV_FOURCC('f','r','e','e'): case MOV_FOURCC('s','k','i','p'): case MOV_FOURCC('j','u','n','k'): mp_msg(MSGT_DEMUX,MSGL_DBG2,"MOV: free space (len: %d)\n", len); /* unused, if you edit a mov, you can use space provided by free atoms (redefining it) */ break; case MOV_FOURCC('p','n','o','t'): case MOV_FOURCC('P','I','C','T'): /* dunno what, but we shoudl ignore it */ break; default: if(no==0){ free(priv); return 0;} // first chunk is bad! id = be2me_32(id); mp_msg(MSGT_DEMUX,MSGL_V,"MOV: unknown chunk: %.4s %d\n",&id,(int)len); } skip_chunk: if(!stream_skip(demuxer->stream,len-skipped)) break; ++no; } if(flags==3){ demuxer->priv=priv; return 1; } free(priv); if ((flags==5) || (flags==7)) // reference & header sent return 1; if(flags==1) mp_msg(MSGT_DEMUX,MSGL_WARN,"MOV: missing data (mdat) chunk! Maybe broken file...\n"); else if(flags==2) mp_msg(MSGT_DEMUX,MSGL_WARN,"MOV: missing header (moov/cmov) chunk! Maybe broken file...\n"); return 0; } static void lschunks(demuxer_t* demuxer,int level,off_t endpos,mov_track_t* trak){ mov_priv_t* priv=demuxer->priv; // printf("lschunks (level=%d,endpos=%x)\n", level, endpos); while(1){ off_t pos; off_t len; unsigned int id; // pos=stream_tell(demuxer->stream); // printf("stream_tell==%d\n",pos); if(pos>=endpos) return; // END len=stream_read_dword(demuxer->stream); // printf("len==%d\n",len); if(len<8) return; // error len-=8; id=stream_read_dword(demuxer->stream); // mp_msg(MSGT_DEMUX,MSGL_DBG2,"lschunks %.4s %d\n",&id,(int)len); // if(trak){ switch(id){ case MOV_FOURCC('m','d','a','t'): { mp_msg(MSGT_DEMUX,MSGL_WARN,"Hmm, strange MOV, parsing mdat in lschunks?\n"); return; } case MOV_FOURCC('f','r','e','e'): case MOV_FOURCC('u','d','t','a'): /* here not supported :p */ break; case MOV_FOURCC('t','k','h','d'): { mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sTrack header!\n",level,""); // read codec data trak->tkdata_len=len; trak->tkdata=malloc(trak->tkdata_len); stream_read(demuxer->stream,trak->tkdata,trak->tkdata_len); /* 0 1 Version 1 3 Flags 4 4 Creation time 8 4 Modification time 12 4 Track ID 16 4 Reserved 20 4 Duration 24 8 Reserved 32 2 Layer 34 2 Alternate group 36 2 Volume 38 2 Reserved 40 36 Matrix structure 76 4 Track width 80 4 Track height */ mp_msg(MSGT_DEMUX,MSGL_V,"tkhd len=%d ver=%d flags=0x%X id=%d dur=%d lay=%d vol=%d\n", trak->tkdata_len, trak->tkdata[0], trak->tkdata[1], char2int(trak->tkdata,12), // id char2int(trak->tkdata,20), // duration char2short(trak->tkdata,32), // layer char2short(trak->tkdata,36)); // volume break; } case MOV_FOURCC('m','d','h','d'): { unsigned int tmp; mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sMedia header!\n",level,""); #if 0 tmp=stream_read_dword(demuxer->stream); printf("dword1: 0x%08X (%d)\n",tmp,tmp); tmp=stream_read_dword(demuxer->stream); printf("dword2: 0x%08X (%d)\n",tmp,tmp); tmp=stream_read_dword(demuxer->stream); printf("dword3: 0x%08X (%d)\n",tmp,tmp); tmp=stream_read_dword(demuxer->stream); printf("dword4: 0x%08X (%d)\n",tmp,tmp); tmp=stream_read_dword(demuxer->stream); printf("dword5: 0x%08X (%d)\n",tmp,tmp); tmp=stream_read_dword(demuxer->stream); printf("dword6: 0x%08X (%d)\n",tmp,tmp); #endif stream_skip(demuxer->stream,12); // read timescale trak->timescale=stream_read_dword(demuxer->stream); // read length trak->length=stream_read_dword(demuxer->stream); break; } case MOV_FOURCC('h','d','l','r'): { unsigned int tmp=stream_read_dword(demuxer->stream); unsigned int type=stream_read_dword_le(demuxer->stream); unsigned int subtype=stream_read_dword_le(demuxer->stream); unsigned int manufact=stream_read_dword_le(demuxer->stream); unsigned int comp_flags=stream_read_dword(demuxer->stream); unsigned int comp_mask=stream_read_dword(demuxer->stream); int len=stream_read_char(demuxer->stream); char* str=malloc(len+1); stream_read(demuxer->stream,str,len); str[len]=0; mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sHandler header: %.4s/%.4s (%.4s) %s\n",level,"",&type,&subtype,&manufact,str); free(str); switch(bswap_32(type)){ case MOV_FOURCC('m','h','l','r'): trak->media_handler=bswap_32(subtype); break; case MOV_FOURCC('d','h','l','r'): trak->data_handler=bswap_32(subtype); break; default: mp_msg(MSGT_DEMUX,MSGL_V,"MOV: unknown handler class: 0x%X (%.4s)\n",bswap_32(type),&type); } break; } case MOV_FOURCC('v','m','h','d'): { mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sVideo header!\n",level,""); trak->type=MOV_TRAK_VIDEO; // read video data break; } case MOV_FOURCC('s','m','h','d'): { mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sSound header!\n",level,""); trak->type=MOV_TRAK_AUDIO; // read audio data break; } case MOV_FOURCC('g','m','h','d'): { mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sGeneric header!\n",level,""); trak->type=MOV_TRAK_GENERIC; break; } case MOV_FOURCC('n','m','h','d'): { mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sGeneric header!\n",level,""); trak->type=MOV_TRAK_GENERIC; break; } case MOV_FOURCC('s','t','s','d'): { int i=stream_read_dword(demuxer->stream); // temp! int count=stream_read_dword(demuxer->stream); mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sDescription list! (cnt:%d)\n",level,"",count); for(i=0;istream); off_t len=stream_read_dword(demuxer->stream); unsigned int fourcc=stream_read_dword_le(demuxer->stream); /* some files created with Broadcast 2000 (e.g. ilacetest.mov) contain raw I420 video but have a yv12 fourcc */ if(fourcc==mmioFOURCC('y','v','1','2')) fourcc=mmioFOURCC('I','4','2','0'); if(len<8) break; // error mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*s desc #%d: %.4s (%d bytes)\n",level,"",i,&fourcc,len-16); if(fourcc!=trak->fourcc && i) mp_msg(MSGT_DEMUX,MSGL_WARN,MSGTR_MOVvariableFourCC); // if(!i) { trak->fourcc=fourcc; // read type specific (audio/video/time/text etc) header // NOTE: trak type is not yet known at this point :((( trak->stdata_len=len-8; trak->stdata=malloc(trak->stdata_len); stream_read(demuxer->stream,trak->stdata,trak->stdata_len); } if(!stream_seek(demuxer->stream,pos+len)) break; } break; } case MOV_FOURCC('s','t','t','s'): { int temp=stream_read_dword(demuxer->stream); int len=stream_read_dword(demuxer->stream); int i; unsigned int pts=0; mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sSample duration table! (%d blocks)\n",level,"",len); trak->durmap=malloc(sizeof(mov_durmap_t)*len); memset(trak->durmap,0,sizeof(mov_durmap_t)*len); trak->durmap_size=len; for(i=0;idurmap[i].num=stream_read_dword(demuxer->stream); trak->durmap[i].dur=stream_read_dword(demuxer->stream); pts+=trak->durmap[i].num*trak->durmap[i].dur; } if(trak->length!=pts) mp_msg(MSGT_DEMUX, MSGL_WARN, "Warning! pts=%d length=%d\n",pts,trak->length); break; } case MOV_FOURCC('s','t','s','c'): { int temp=stream_read_dword(demuxer->stream); int len=stream_read_dword(demuxer->stream); int ver = (temp << 24); int flags = (temp << 16)|(temp<<8)|temp; int i; mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sSample->Chunk mapping table! (%d blocks) (ver:%d,flags:%ld)\n", level,"",len,ver,flags); // read data: trak->chunkmap_size=len; trak->chunkmap=malloc(sizeof(mov_chunkmap_t)*len); for(i=0;ichunkmap[i].first=stream_read_dword(demuxer->stream)-1; trak->chunkmap[i].spc=stream_read_dword(demuxer->stream); trak->chunkmap[i].sdid=stream_read_dword(demuxer->stream); } break; } case MOV_FOURCC('s','t','s','z'): { int temp=stream_read_dword(demuxer->stream); int ss=stream_read_dword(demuxer->stream); int ver = (temp << 24); int flags = (temp << 16)|(temp<<8)|temp; int entries=stream_read_dword(demuxer->stream); int i; mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sSample size table! (entries=%d ss=%d) (ver:%d,flags:%ld)\n", level,"",entries,ss,ver,flags); trak->samplesize=ss; if (!ss) { // variable samplesize trak->samples=realloc(trak->samples,sizeof(mov_sample_t)*entries); trak->samples_size=entries; for(i=0;isamples[i].size=stream_read_dword(demuxer->stream); } break; } case MOV_FOURCC('s','t','c','o'): { int temp=stream_read_dword(demuxer->stream); int len=stream_read_dword(demuxer->stream); int i; mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sChunk offset table! (%d chunks)\n",level,"",len); // extend array if needed: if(len>trak->chunks_size){ trak->chunks=realloc(trak->chunks,sizeof(mov_chunk_t)*len); trak->chunks_size=len; } // read elements: for(i=0;ichunks[i].pos=stream_read_dword(demuxer->stream); break; } case MOV_FOURCC('c','o','6','4'): { int temp=stream_read_dword(demuxer->stream); int len=stream_read_dword(demuxer->stream); int i; mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*s64bit chunk offset table! (%d chunks)\n",level,"",len); // extend array if needed: if(len>trak->chunks_size){ trak->chunks=realloc(trak->chunks,sizeof(mov_chunk_t)*len); trak->chunks_size=len; } // read elements: for(i=0;istream) != 0) mp_msg(MSGT_DEMUX, MSGL_WARN, "Chunk %d has got 64bit address, but you've MPlayer compiled without LARGEFILE support!\n", i); trak->chunks[i].pos = stream_read_dword(demuxer->stream); #else trak->chunks[i].pos = stream_read_qword(demuxer->stream); #endif } break; } case MOV_FOURCC('s','t','s','s'): { int temp=stream_read_dword(demuxer->stream); int entries=stream_read_dword(demuxer->stream); int ver = (temp << 24); int flags = (temp << 16)|(temp<<8)|temp; int i; mp_msg(MSGT_DEMUX, MSGL_V,"MOV: %*sSyncing samples (keyframes) table! (%d entries) (ver:%d,flags:%ld)\n", level, "",entries, ver, flags); trak->keyframes_size=entries; trak->keyframes=malloc(sizeof(unsigned int)*entries); for (i=0;ikeyframes[i]=stream_read_dword(demuxer->stream)-1; // for (i=0;ikeyframes[i]); break; } case MOV_FOURCC('m','d','i','a'): { mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sMedia stream!\n",level,""); lschunks(demuxer,level+1,pos+len,trak); break; } case MOV_FOURCC('m','i','n','f'): { mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sMedia info!\n",level,""); lschunks(demuxer,level+1,pos+len,trak); break; } case MOV_FOURCC('s','t','b','l'): { mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sSample info!\n",level,""); lschunks(demuxer,level+1,pos+len,trak); break; } case MOV_FOURCC('e','d','t','s'): { mp_msg(MSGT_DEMUX, MSGL_V, "MOV: %*sEdit atom!\n", level, ""); lschunks(demuxer,level+1,pos+len,trak); break; } case MOV_FOURCC('e','l','s','t'): { int temp=stream_read_dword(demuxer->stream); int entries=stream_read_dword(demuxer->stream); int ver = (temp << 24); int flags = (temp << 16)|(temp<<8)|temp; int i; mp_msg(MSGT_DEMUX, MSGL_V,"MOV: %*sEdit list table (%d entries) (ver:%d,flags:%ld)\n", level, "",entries, ver, flags); #if 1 trak->editlist_size=entries; trak->editlist=malloc(trak->editlist_size*sizeof(mov_editlist_t)); for (i=0;istream); int mt=stream_read_dword(demuxer->stream); int mr=stream_read_dword(demuxer->stream); // 16.16fp trak->editlist[i].dur=dur; trak->editlist[i].pos=mt; trak->editlist[i].speed=mr; mp_msg(MSGT_DEMUX, MSGL_V,"MOV: %*s entry#%d: duration: %d start time: %d speed: %3.1fx\n",level,"", i, dur,mt,(float)mr/65536.0f); } #endif break; } case MOV_FOURCC('c','o','d','e'): { /* XXX: Implement atom 'code' for FLASH support */ } default: id = be2me_32(id); mp_msg(MSGT_DEMUX,MSGL_V,"MOV: unknown chunk: %.4s %d\n",&id,(int)len); break; }//switch(id) } else { /* not in track */ switch(id) { case MOV_FOURCC('m','v','h','d'): { stream_skip(demuxer->stream,12); priv->timescale=stream_read_dword(demuxer->stream); priv->duration=stream_read_dword(demuxer->stream); mp_msg(MSGT_DEMUX, MSGL_V,"MOV: %*sMovie header (%d bytes): tscale=%d dur=%d\n",level,"",(int)len, (int)priv->timescale,(int)priv->duration); break; } case MOV_FOURCC('t','r','a','k'): { // if(trak) printf("MOV: Warning! trak in trak?\n"); if(priv->track_db>=MOV_MAX_TRACKS){ mp_msg(MSGT_DEMUX,MSGL_WARN,MSGTR_MOVtooManyTrk); return; } if(!priv->track_db) mp_msg(MSGT_DEMUX, MSGL_INFO, "--------------\n"); trak=malloc(sizeof(mov_track_t)); memset(trak,0,sizeof(mov_track_t)); mp_msg(MSGT_DEMUX,MSGL_V,"MOV: Track #%d:\n",priv->track_db); trak->id=priv->track_db; priv->tracks[priv->track_db]=trak; lschunks(demuxer,level+1,pos+len,trak); mov_build_index(trak,priv->timescale); switch(trak->type){ case MOV_TRAK_AUDIO: { #if 0 struct { int16_t version; // 0 or 1 (version 1 is qt3.0+) int16_t revision; // 0 int32_t vendor_id; // 0 int16_t channels; // 1 or 2 (Mono/Stereo) int16_t samplesize; // 8 or 16 (8Bit/16Bit) int16_t compression_id; // if version 0 then 0 // if version 1 and vbr then -2 else 0 int16_t packet_size; // 0 uint16_t sample_rate; // samplerate (Hz) // qt3.0+ (version == 1) uint32_t samples_per_packet; // 0 or num uncompressed samples in a packet // if 0 below three values are also 0 uint32_t bytes_per_packet; // 0 or num compressed bytes for one channel uint32_t bytes_per_frame; // 0 or num compressed bytes for all channels // (channels * bytes_per_packet) uint32_t bytes_per_sample; // 0 or size of uncompressed sample // if samples_per_packet and bytes_per_packet are constant (CBR) // then bytes_per_frame and bytes_per_sample must be 0 (else is VBR) // --- // optional additional atom-based fields // ([int32_t size,int32_t type,some data ],repeat) } my_stdata; #endif sh_audio_t* sh=new_sh_audio(demuxer,priv->track_db); sh->format=trak->fourcc; switch( sh->format ) { case 0x726D6173: /* samr */ /* amr narrowband */ trak->samplebytes=sh->samplesize=1; trak->nchannels=sh->channels=1; sh->samplerate=8000; break; case 0x62776173: /* sawb */ /* amr wideband */ trak->samplebytes=sh->samplesize=1; trak->nchannels=sh->channels=1; sh->samplerate=16000; break; default: // assumptions for below table: short is 16bit, int is 32bit, intfp is 16bit // XXX: 32bit fixed point numbers (intfp) are only 2 Byte! // short values are usually one byte leftpadded by zero // int values are usually two byte leftpadded by zero // stdata[]: // 8 short version // 10 short revision // 12 int vendor_id // 16 short channels // 18 short samplesize // 20 short compression_id // 22 short packet_size (==0) // 24 intfp sample_rate // (26 short) unknown (==0) // ---- qt3.0+ (version>=1) // 28 int samples_per_packet // 32 int bytes_per_packet // 36 int bytes_per_frame // 40 int bytes_per_sample // there may be additional atoms following at 28 (version 0) // or 44 (version 1), eg. esds atom of .MP4 files // esds atom: // 28 int atom size (bytes of int size, int type and data) // 32 char[4] atom type (fourc charater code -> esds) // 36 char[] atom data (len=size-8) trak->samplebytes=sh->samplesize=char2short(trak->stdata,18)/8; trak->nchannels=sh->channels=char2short(trak->stdata,16); /*printf("MOV: timescale: %d samplerate: %d durmap: %d (%d) -> %d (%d)\n", trak->timescale, char2short(trak->stdata,24), trak->durmap[0].dur, trak->durmap[0].num, trak->timescale/trak->durmap[0].dur, char2short(trak->stdata,24)/trak->durmap[0].dur);*/ sh->samplerate=char2short(trak->stdata,24); if((sh->samplerate < 7000) && trak->durmap) { switch(char2short(trak->stdata,24)/trak->durmap[0].dur) { // TODO: add more cases. case 31: sh->samplerate = 32000; break; case 43: sh->samplerate = 44100; break; case 47: sh->samplerate = 48000; break; default: mp_msg(MSGT_DEMUX, MSGL_WARN, "MOV: unable to determine audio samplerate, " "assuming 44.1kHz (got %d)\n", char2short(trak->stdata,24)/trak->durmap[0].dur); sh->samplerate = 44100; } } } mp_msg(MSGT_DEMUX, MSGL_INFO, "Audio bits: %d chans: %d rate: %d\n", sh->samplesize*8,sh->channels,sh->samplerate); if(trak->stdata_len >= 44 && trak->stdata[9]>=1){ mp_msg(MSGT_DEMUX,MSGL_V,"Audio header: samp/pack=%d bytes/pack=%d bytes/frame=%d bytes/samp=%d \n", char2int(trak->stdata,28), char2int(trak->stdata,32), char2int(trak->stdata,36), char2int(trak->stdata,40)); if(trak->stdata_len>=44+8){ int len=char2int(trak->stdata,44); int fcc=char2int(trak->stdata,48); // we have extra audio headers!!! printf("Audio extra header: len=%d fcc=0x%X\n",len,fcc); sh->codecdata_len = len-8; sh->codecdata = trak->stdata+44+8; } } if((trak->stdata[9]==0 || trak->stdata[9]==1) && trak->stdata_len >= 36) { // version 0 with extra atoms int adjust = (trak->stdata[9]==1)?48:0; int atom_len = char2int(trak->stdata,28+adjust); switch(char2int(trak->stdata,32+adjust)) { // atom type case MOV_FOURCC('e','s','d','s'): { mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Found MPEG4 audio Elementary Stream Descriptor atom (%d)!\n", atom_len); if(atom_len > 8) { esds_t esds; if(!mp4_parse_esds(&trak->stdata[36+adjust], atom_len-8, &esds)) { sh->i_bps = esds.avgBitrate/8; // printf("######## audio format = %d ########\n",esds.objectTypeId); if(esds.objectTypeId==MP4OTI_MPEG1Audio || esds.objectTypeId==MP4OTI_MPEG2AudioPart3) sh->format=0x55; // .mp3 // dump away the codec specific configuration for the AAC decoder if(esds.decoderConfigLen){ if( (esds.decoderConfig[0]>>3) == 29 ) sh->format = 0x1d61346d; // request multi-channel mp3 decoder sh->codecdata_len = esds.decoderConfigLen; sh->codecdata = (unsigned char *)malloc(sh->codecdata_len); memcpy(sh->codecdata, esds.decoderConfig, sh->codecdata_len); } } mp4_free_esds(&esds); // freeup esds mem #if 0 { FILE* f=fopen("esds.dat","wb"); fwrite(&trak->stdata[36],atom_len-8,1,f); fclose(f); } #endif } } break; default: mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Found unknown audio atom %c%c%c%c (%d)!\n", trak->stdata[32+adjust],trak->stdata[33+adjust],trak->stdata[34+adjust],trak->stdata[35+adjust], atom_len); } } mp_msg(MSGT_DEMUX, MSGL_INFO, "Fourcc: %.4s\n",&trak->fourcc); #if 0 { FILE* f=fopen("stdata.dat","wb"); fwrite(trak->stdata,trak->stdata_len,1,f); fclose(f); } { FILE* f=fopen("tkdata.dat","wb"); fwrite(trak->tkdata,trak->tkdata_len,1,f); fclose(f); } #endif // Emulate WAVEFORMATEX struct: sh->wf=malloc(sizeof(WAVEFORMATEX)); memset(sh->wf,0,sizeof(WAVEFORMATEX)); sh->wf->nChannels=sh->channels; sh->wf->wBitsPerSample=(trak->stdata[18]<<8)+trak->stdata[19]; // sh->wf->nSamplesPerSec=trak->timescale; sh->wf->nSamplesPerSec=(trak->stdata[24]<<8)+trak->stdata[25]; if(trak->stdata_len >= 44 && trak->stdata[9]>=1 && char2int(trak->stdata,28)>0){ //Audio header: samp/pack=4096 bytes/pack=743 bytes/frame=1486 bytes/samp=2 sh->wf->nAvgBytesPerSec=(sh->wf->nChannels*sh->wf->nSamplesPerSec* char2int(trak->stdata,32)+char2int(trak->stdata,28)/2) /char2int(trak->stdata,28); sh->wf->nBlockAlign=char2int(trak->stdata,36); } else { sh->wf->nAvgBytesPerSec=sh->wf->nChannels*sh->wf->wBitsPerSample*sh->wf->nSamplesPerSec/8; // workaround for ms11 ima4 if (sh->format == 0x1100736d && trak->stdata_len >= 36) sh->wf->nBlockAlign=char2int(trak->stdata,36); } // Selection: // if(demuxer->audio->id==-1 || demuxer->audio->id==priv->track_db){ // // (auto)selected audio track: // demuxer->audio->id=priv->track_db; // demuxer->audio->sh=sh; sh->ds=demuxer->audio; // } break; } case MOV_TRAK_VIDEO: { int i, entry; int flag, start, count_flag, end, palette_count, gray; int hdr_ptr = 76; // the byte just after depth unsigned char *palette_map; sh_video_t* sh=new_sh_video(demuxer,priv->track_db); int depth = trak->stdata[75]|(trak->stdata[74]<<8); sh->format=trak->fourcc; // stdata[]: // 8 short version // 10 short revision // 12 int vendor_id // 16 int temporal_quality // 20 int spatial_quality // 24 short width // 26 short height // 28 int h_dpi // 32 int v_dpi // 36 int 0 // 40 short frames_per_sample // 42 char[4] compressor_name // 74 short depth // 76 short color_table_id // additional atoms may follow, // eg esds atom from .MP4 files // 78 int atom size // 82 char[4] atom type // 86 ... atom data { ImageDescription* id=malloc(8+trak->stdata_len); trak->desc=id; id->idSize=8+trak->stdata_len; // id->cType=bswap_32(trak->fourcc); id->cType=le2me_32(trak->fourcc); id->version=char2short(trak->stdata,8); id->revisionLevel=char2short(trak->stdata,10); id->vendor=char2int(trak->stdata,12); id->temporalQuality=char2int(trak->stdata,16); id->spatialQuality=char2int(trak->stdata,20); id->width=char2short(trak->stdata,24); id->height=char2short(trak->stdata,26); id->hRes=char2int(trak->stdata,28); id->vRes=char2int(trak->stdata,32); id->dataSize=char2int(trak->stdata,36); id->frameCount=char2short(trak->stdata,40); memcpy(&id->name,trak->stdata+42,32); id->depth=char2short(trak->stdata,74); id->clutID=char2short(trak->stdata,76); if(trak->stdata_len>78) memcpy(((char*)&id->clutID)+2,trak->stdata+78,trak->stdata_len-78); sh->ImageDesc=id; #if 0 { FILE *f=fopen("ImageDescription","wb"); fwrite(id,id->idSize,1,f); fclose(f); } #endif } if(trak->stdata_len >= 86) { // extra atoms found int pos=78; int atom_len; while(pos+8<=trak->stdata_len && (pos+(atom_len=char2int(trak->stdata,pos)))<=trak->stdata_len){ switch(char2int(trak->stdata,pos+4)) { // switch atom type case MOV_FOURCC('g','a','m','a'): // intfp with gamma value at which movie was captured // can be used to gamma correct movie display mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Found unsupported Gamma-Correction movie atom (%d)!\n", atom_len); break; case MOV_FOURCC('f','i','e','l'): // 2 char-values (8bit int) that specify field handling // see the Apple's QuickTime Fileformat PDF for more info mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Found unsupported Field-Handling movie atom (%d)!\n", atom_len); break; case MOV_FOURCC('m','j','q','t'): // Motion-JPEG default quantization table mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Found unsupported MJPEG-Quantization movie atom (%d)!\n", atom_len); break; case MOV_FOURCC('m','j','h','t'): // Motion-JPEG default huffman table mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Found unsupported MJPEG-Huffman movie atom (%d)!\n", atom_len); break; case MOV_FOURCC('e','s','d','s'): // MPEG4 Elementary Stream Descriptor header mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Found MPEG4 movie Elementary Stream Descriptor atom (%d)!\n", atom_len); // add code here to save esds header of length atom_len-8 // beginning at stdata[86] to some variable to pass it // on to the decoder ::atmos if(atom_len > 8) { esds_t esds; if(!mp4_parse_esds(trak->stdata+pos+8, atom_len-8, &esds)) { if(esds.objectTypeId==MP4OTI_MPEG2VisualSimple || esds.objectTypeId==MP4OTI_MPEG2VisualMain || esds.objectTypeId==MP4OTI_MPEG2VisualSNR || esds.objectTypeId==MP4OTI_MPEG2VisualSpatial || esds.objectTypeId==MP4OTI_MPEG2VisualHigh || esds.objectTypeId==MP4OTI_MPEG2Visual422) sh->format=mmioFOURCC('m', 'p', 'g', '2'); else if(esds.objectTypeId==MP4OTI_MPEG1Visual) sh->format=mmioFOURCC('m', 'p', 'g', '1'); // dump away the codec specific configuration for the AAC decoder trak->stream_header_len = esds.decoderConfigLen; trak->stream_header = (unsigned char *)malloc(trak->stream_header_len); memcpy(trak->stream_header, esds.decoderConfig, trak->stream_header_len); } mp4_free_esds(&esds); // freeup esds mem } break; case MOV_FOURCC('a','v','c','C'): // AVC decoder configuration record mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: AVC decoder configuration record atom (%d)!\n", atom_len); if(atom_len > 8) { int i, poffs, cnt; // Parse some parts of avcC, just for fun :) // real parsing is done by avc1 decoder mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC version: %d\n", *(trak->stdata+pos+8)); if (*(trak->stdata+pos+8) != 1) mp_msg(MSGT_DEMUX, MSGL_ERR, "MOV: unknown avcC version (%d). Expexct problems.\n", *(trak->stdata+pos+9)); mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC profile: %d\n", *(trak->stdata+pos+9)); mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC profile compatibility: %d\n", *(trak->stdata+pos+10)); mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC level: %d\n", *(trak->stdata+pos+11)); mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC nal length size: %d\n", ((*(trak->stdata+pos+12))&0x03)+1); mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC number of sequence param sets: %d\n", cnt = (*(trak->stdata+pos+13) & 0x1f)); poffs = pos + 14; for (i = 0; i < cnt; i++) { mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC sps %d have length %d\n", i, BE_16(trak->stdata+poffs)); poffs += BE_16(trak->stdata+poffs) + 2; } mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC number of picture param sets: %d\n", *(trak->stdata+poffs)); poffs++; for (i = 0; i < cnt; i++) { mp_msg(MSGT_DEMUX, MSGL_V, "MOV: avcC pps %d have length %d\n", i, BE_16(trak->stdata+poffs)); poffs += BE_16(trak->stdata+poffs) + 2; } // Copy avcC for the AVC decoder // This data will be put in extradata below, where BITMAPINFOHEADER is created trak->stream_header_len = atom_len-8; trak->stream_header = (unsigned char *)malloc(trak->stream_header_len); memcpy(trak->stream_header, trak->stdata+pos+8, trak->stream_header_len); } break; case 0: break; default: mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Found unknown movie atom %c%c%c%c (%d)!\n", trak->stdata[pos+4],trak->stdata[pos+5],trak->stdata[pos+6],trak->stdata[pos+7], atom_len); } if(atom_len<8) break; pos+=atom_len; // printf("pos=%d max=%d\n",pos,trak->stdata_len); } } sh->fps=trak->timescale/ ((trak->durmap_size>=1)?(float)trak->durmap[0].dur:1); sh->frametime=1.0f/sh->fps; sh->disp_w=trak->stdata[25]|(trak->stdata[24]<<8); sh->disp_h=trak->stdata[27]|(trak->stdata[26]<<8); // if image size is zero, fallback to display size if(!sh->disp_w && !sh->disp_h) { sh->disp_w=trak->tkdata[77]|(trak->tkdata[76]<<8); sh->disp_h=trak->tkdata[81]|(trak->tkdata[80]<<8); } else if(sh->disp_w!=(trak->tkdata[77]|(trak->tkdata[76]<<8))){ // codec and display width differ... use display one for aspect sh->aspect=trak->tkdata[77]|(trak->tkdata[76]<<8); sh->aspect/=trak->tkdata[81]|(trak->tkdata[80]<<8); } if(depth>32+8) printf("*** depth = 0x%X\n",depth); // palettized? gray = 0; if (depth > 32) { depth&=31; gray = 1; } // depth > 32 means grayscale if ((depth == 2) || (depth == 4) || (depth == 8)) palette_count = (1 << depth); else palette_count = 0; // emulate BITMAPINFOHEADER: if (palette_count) { sh->bih=malloc(sizeof(BITMAPINFOHEADER) + palette_count * 4); memset(sh->bih,0,sizeof(BITMAPINFOHEADER) + palette_count * 4); sh->bih->biSize=40 + palette_count * 4; // fetch the relevant fields flag = BE_16(&trak->stdata[hdr_ptr]); hdr_ptr += 2; start = BE_32(&trak->stdata[hdr_ptr]); hdr_ptr += 4; count_flag = BE_16(&trak->stdata[hdr_ptr]); hdr_ptr += 2; end = BE_16(&trak->stdata[hdr_ptr]); hdr_ptr += 2; palette_map = (unsigned char *)sh->bih + 40; mp_msg(MSGT_DEMUX, MSGL_INFO, "Allocated %d entries for palette\n", palette_count); mp_msg(MSGT_DEMUX, MSGL_DBG2, "QT palette: start: %x, end: %x, count flag: %d, flags: %x\n", start, end, count_flag, flag); /* XXX: problems with sample (statunit6.mov) with flag&0x4 set! - alex*/ // load default palette if (flag & 0x08) { if (gray) { mp_msg(MSGT_DEMUX, MSGL_INFO, "Using default QT grayscale palette\n"); if (palette_count == 16) memcpy(palette_map, qt_default_grayscale_palette_16, 16 * 4); else if (palette_count == 256) { memcpy(palette_map, qt_default_grayscale_palette_256, 256 * 4); if (trak->fourcc == mmioFOURCC('c','v','i','d')) { int i; // Hack for grayscale CVID, negative palette // If you have samples where this is not required contact me (rxt) mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: greyscale cvid with default palette," " enabling negative palette hack.\n"); for (i = 0; i < 256 * 4; i++) palette_map[i] = palette_map[i] ^ 0xff; } } } else { mp_msg(MSGT_DEMUX, MSGL_INFO, "Using default QT colour palette\n"); if (palette_count == 4) memcpy(palette_map, qt_default_palette_4, 4 * 4); else if (palette_count == 16) memcpy(palette_map, qt_default_palette_16, 16 * 4); else if (palette_count == 256) memcpy(palette_map, qt_default_palette_256, 256 * 4); } } // load palette from file else { mp_msg(MSGT_DEMUX, MSGL_INFO, "Loading palette from file\n"); for (i = start; i <= end; i++) { entry = BE_16(&trak->stdata[hdr_ptr]); hdr_ptr += 2; // apparently, if count_flag is set, entry is same as i if (count_flag & 0x8000) entry = i; // only care about top 8 bits of 16-bit R, G, or B value if (entry <= palette_count && entry >= 0) { palette_map[entry * 4 + 2] = trak->stdata[hdr_ptr + 0]; palette_map[entry * 4 + 1] = trak->stdata[hdr_ptr + 2]; palette_map[entry * 4 + 0] = trak->stdata[hdr_ptr + 4]; mp_dbg(MSGT_DEMUX, MSGL_DBG2, "QT palette: added entry: %d of %d (colors: R:%x G:%x B:%x)\n", entry, palette_count, palette_map[entry * 4 + 2], palette_map[entry * 4 + 1], palette_map[entry * 4 + 0]); } else mp_msg(MSGT_DEMUX, MSGL_V, "QT palette: skipped entry (out of count): %d of %d\n", entry, palette_count); hdr_ptr += 6; } } } else { if (trak->fourcc == mmioFOURCC('a','v','c','1')) { sh->bih=malloc(sizeof(BITMAPINFOHEADER) + trak->stream_header_len); memset(sh->bih,0,sizeof(BITMAPINFOHEADER) + trak->stream_header_len); sh->bih->biSize=40 + trak->stream_header_len; memcpy(((unsigned char *)sh->bih)+40, trak->stream_header, trak->stream_header_len); free (trak->stream_header); trak->stream_header_len = 0; trak->stream_header = NULL; } else { sh->bih=malloc(sizeof(BITMAPINFOHEADER)); memset(sh->bih,0,sizeof(BITMAPINFOHEADER)); sh->bih->biSize=40; } } sh->bih->biWidth=sh->disp_w; sh->bih->biHeight=sh->disp_h; sh->bih->biPlanes=0; sh->bih->biBitCount=depth; sh->bih->biCompression=trak->fourcc; sh->bih->biSizeImage=sh->bih->biWidth*sh->bih->biHeight; mp_msg(MSGT_DEMUX, MSGL_INFO, "Image size: %d x %d (%d bpp)\n",sh->disp_w,sh->disp_h,sh->bih->biBitCount); if(trak->tkdata_len>81) mp_msg(MSGT_DEMUX, MSGL_INFO, "Display size: %d x %d\n", trak->tkdata[77]|(trak->tkdata[76]<<8), trak->tkdata[81]|(trak->tkdata[80]<<8)); mp_msg(MSGT_DEMUX, MSGL_INFO, "Fourcc: %.4s Codec: '%.*s'\n",&trak->fourcc,trak->stdata[42]&31,trak->stdata+43); // if(demuxer->video->id==-1 || demuxer->video->id==priv->track_db){ // // (auto)selected video track: // demuxer->video->id=priv->track_db; // demuxer->video->sh=sh; sh->ds=demuxer->video; // } break; } case MOV_TRAK_GENERIC: mp_msg(MSGT_DEMUX, MSGL_INFO, "Generic track - not completely understood! (id: %d)\n", trak->id); /* XXX: Also this contains the FLASH data */ #if 0 { int pos = stream_tell(demuxer->stream); int i; int fd; char name[20]; for (i=0; isamples_size; i++) { char buf[trak->samples[i].size]; stream_seek(demuxer->stream, trak->samples[i].pos); snprintf((char *)&name[0], 20, "samp%d", i); fd = open((char *)&name[0], O_CREAT|O_WRONLY); stream_read(demuxer->stream, &buf[0], trak->samples[i].size); write(fd, &buf[0], trak->samples[i].size); close(fd); } for (i=0; ichunks_size; i++) { char buf[trak->length]; stream_seek(demuxer->stream, trak->chunks[i].pos); snprintf((char *)&name[0], 20, "chunk%d", i); fd = open((char *)&name[0], O_CREAT|O_WRONLY); stream_read(demuxer->stream, &buf[0], trak->length); write(fd, &buf[0], trak->length); close(fd); } if (trak->samplesize > 0) { char *buf; buf = malloc(trak->samplesize); stream_seek(demuxer->stream, trak->chunks[0].pos); snprintf((char *)&name[0], 20, "trak%d", trak->id); fd = open((char *)&name[0], O_CREAT|O_WRONLY); stream_read(demuxer->stream, buf, trak->samplesize); write(fd, buf, trak->samplesize); close(fd); } stream_seek(demuxer->stream, pos); } #endif break; default: mp_msg(MSGT_DEMUX, MSGL_INFO, "Unknown track type found (type: %d)\n", trak->type); break; } mp_msg(MSGT_DEMUX, MSGL_INFO, "--------------\n"); priv->track_db++; trak=NULL; break; } #ifndef HAVE_ZLIB case MOV_FOURCC('c','m','o','v'): { mp_msg(MSGT_DEMUX,MSGL_ERR,MSGTR_MOVcomprhdr); return; } #else case MOV_FOURCC('m','o','o','v'): case MOV_FOURCC('c','m','o','v'): { // mp_msg(MSGT_DEMUX,MSGL_ERR,MSGTR_MOVcomprhdr); lschunks(demuxer,level+1,pos+len,NULL); break; } case MOV_FOURCC('d','c','o','m'): { // int temp=stream_read_dword(demuxer->stream); unsigned int algo=be2me_32(stream_read_dword(demuxer->stream)); mp_msg(MSGT_DEMUX, MSGL_INFO, "Compressed header uses %.4s algo!\n",&algo); break; } case MOV_FOURCC('c','m','v','d'): { // int temp=stream_read_dword(demuxer->stream); unsigned int moov_sz=stream_read_dword(demuxer->stream); unsigned int cmov_sz=len-4; unsigned char* cmov_buf=malloc(cmov_sz); unsigned char* moov_buf=malloc(moov_sz+16); int zret; z_stream zstrm; stream_t* backup; mp_msg(MSGT_DEMUX, MSGL_INFO, "Compressed header size: %d / %d\n",cmov_sz,moov_sz); stream_read(demuxer->stream,cmov_buf,cmov_sz); zstrm.zalloc = (alloc_func)0; zstrm.zfree = (free_func)0; zstrm.opaque = (voidpf)0; zstrm.next_in = cmov_buf; zstrm.avail_in = cmov_sz; zstrm.next_out = moov_buf; zstrm.avail_out = moov_sz; zret = inflateInit(&zstrm); if (zret != Z_OK) { mp_msg(MSGT_DEMUX, MSGL_ERR, "QT cmov: inflateInit err %d\n",zret); return; } zret = inflate(&zstrm, Z_NO_FLUSH); if ((zret != Z_OK) && (zret != Z_STREAM_END)) { mp_msg(MSGT_DEMUX, MSGL_ERR, "QT cmov inflate: ERR %d\n",zret); return; } #if 0 else { FILE *DecOut; DecOut = fopen("Out.bin", "w"); fwrite(moov_buf, 1, moov_sz, DecOut); fclose(DecOut); } #endif if(moov_sz != zstrm.total_out) mp_msg(MSGT_DEMUX, MSGL_WARN, "Warning! moov size differs cmov: %d zlib: %d\n",moov_sz,zstrm.total_out); zret = inflateEnd(&zstrm); backup=demuxer->stream; demuxer->stream=new_memory_stream(moov_buf,moov_sz); stream_skip(demuxer->stream,8); lschunks(demuxer,level+1,moov_sz,NULL); // parse uncompr. 'moov' //free_stream(demuxer->stream); demuxer->stream=backup; free(cmov_buf); free(moov_buf); break; } #endif case MOV_FOURCC('u','d','t','a'): { unsigned int udta_id; off_t udta_len; off_t udta_size = len; mp_msg(MSGT_DEMUX, MSGL_DBG2, "mov: user data record found\n"); mp_msg(MSGT_DEMUX, MSGL_V, "Quicktime Clip Info:\n"); while((len > 8) && (udta_size > 8)) { udta_len = stream_read_dword(demuxer->stream); udta_id = stream_read_dword(demuxer->stream); udta_size -= 8; mp_msg(MSGT_DEMUX, MSGL_DBG2, "udta_id: %.4s (len: %d)\n", &udta_id, udta_len); switch (udta_id) { case MOV_FOURCC(0xa9,'c','p','y'): case MOV_FOURCC(0xa9,'d','a','y'): case MOV_FOURCC(0xa9,'d','i','r'): /* 0xa9,'e','d','1' - '9' : edit timestamps */ case MOV_FOURCC(0xa9,'f','m','t'): case MOV_FOURCC(0xa9,'i','n','f'): case MOV_FOURCC(0xa9,'p','r','d'): case MOV_FOURCC(0xa9,'p','r','f'): case MOV_FOURCC(0xa9,'r','e','q'): case MOV_FOURCC(0xa9,'s','r','c'): case MOV_FOURCC('n','a','m','e'): case MOV_FOURCC(0xa9,'n','a','m'): case MOV_FOURCC(0xa9,'A','R','T'): case MOV_FOURCC(0xa9,'c','m','t'): case MOV_FOURCC(0xa9,'a','u','t'): case MOV_FOURCC(0xa9,'s','w','r'): { off_t text_len = stream_read_word(demuxer->stream); char text[text_len+2+1]; stream_read(demuxer->stream, (char *)&text, text_len+2); text[text_len+2] = 0x0; switch(udta_id) { case MOV_FOURCC(0xa9,'a','u','t'): demux_info_add(demuxer, "author", &text[2]); mp_msg(MSGT_DEMUX, MSGL_V, " Author: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'c','p','y'): demux_info_add(demuxer, "copyright", &text[2]); mp_msg(MSGT_DEMUX, MSGL_V, " Copyright: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'i','n','f'): mp_msg(MSGT_DEMUX, MSGL_V, " Info: %s\n", &text[2]); break; case MOV_FOURCC('n','a','m','e'): case MOV_FOURCC(0xa9,'n','a','m'): demux_info_add(demuxer, "name", &text[2]); mp_msg(MSGT_DEMUX, MSGL_V, " Name: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'A','R','T'): mp_msg(MSGT_DEMUX, MSGL_V, " Artist: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'d','i','r'): mp_msg(MSGT_DEMUX, MSGL_V, " Director: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'c','m','t'): demux_info_add(demuxer, "comments", &text[2]); mp_msg(MSGT_DEMUX, MSGL_V, " Comment: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'r','e','q'): mp_msg(MSGT_DEMUX, MSGL_V, " Requirements: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'s','w','r'): demux_info_add(demuxer, "encoder", &text[2]); mp_msg(MSGT_DEMUX, MSGL_V, " Software: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'d','a','y'): mp_msg(MSGT_DEMUX, MSGL_V, " Creation timestamp: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'f','m','t'): mp_msg(MSGT_DEMUX, MSGL_V, " Format: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'p','r','d'): mp_msg(MSGT_DEMUX, MSGL_V, " Producer: %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'p','r','f'): mp_msg(MSGT_DEMUX, MSGL_V, " Performer(s): %s\n", &text[2]); break; case MOV_FOURCC(0xa9,'s','r','c'): mp_msg(MSGT_DEMUX, MSGL_V, " Source providers: %s\n", &text[2]); break; } udta_size -= 4+text_len; break; } /* some other shits: WLOC - window location, LOOP - looping style, SelO - play only selected frames AllF - play all frames */ case MOV_FOURCC('W','L','O','C'): case MOV_FOURCC('L','O','O','P'): case MOV_FOURCC('S','e','l','O'): case MOV_FOURCC('A','l','l','F'): default: { if( udta_len>udta_size) udta_len=udta_size; { char dump[udta_len-4]; stream_read(demuxer->stream, (char *)&dump, udta_len-4-4); udta_size -= udta_len; } } } } break; } /* eof udta */ default: id = be2me_32(id); mp_msg(MSGT_DEMUX,MSGL_V,"MOV: unknown chunk: %.4s %d\n",&id,(int)len); } /* endof switch */ } /* endof else */ pos+=len+8; if(pos>=endpos) break; if(!stream_seek(demuxer->stream,pos)) break; } } int mov_read_header(demuxer_t* demuxer){ mov_priv_t* priv=demuxer->priv; int t_no; int best_a_id=-1, best_a_len=0; int best_v_id=-1, best_v_len=0; mp_msg(MSGT_DEMUX, MSGL_DBG3, "mov_read_header!\n"); // Parse header: stream_reset(demuxer->stream); if(!stream_seek(demuxer->stream,priv->moov_start)) { mp_msg(MSGT_DEMUX,MSGL_ERR,"MOV: Cannot seek to the beginning of the Movie header (0x%x)\n", priv->moov_start); return 0; } lschunks(demuxer, 0, priv->moov_end, NULL); // just in case we have hit eof while parsing... demuxer->stream->eof = 0; // mp_msg(MSGT_DEMUX, MSGL_INFO, "--------------\n"); // find the best (longest) streams: for(t_no=0;t_notrack_db;t_no++){ mov_track_t* trak=priv->tracks[t_no]; int len=(trak->samplesize) ? trak->chunks_size : trak->samples_size; if(demuxer->a_streams[t_no]){ // need audio if(len>best_a_len){ best_a_len=len; best_a_id=t_no; } } if(demuxer->v_streams[t_no]){ // need video if(len>best_v_len){ best_v_len=len; best_v_id=t_no; } } } mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: longest streams: A: #%d (%d samples) V: #%d (%d samples)\n", best_a_id,best_a_len,best_v_id,best_v_len); if(demuxer->audio->id==-1 && best_a_id>=0) demuxer->audio->id=best_a_id; if(demuxer->video->id==-1 && best_v_id>=0) demuxer->video->id=best_v_id; // setup sh pointers: if(demuxer->audio->id>=0){ sh_audio_t* sh=demuxer->a_streams[demuxer->audio->id]; if(sh){ demuxer->audio->sh=sh; sh->ds=demuxer->audio; } else { mp_msg(MSGT_DEMUX, MSGL_ERR, "MOV: selected audio stream (%d) does not exists\n",demuxer->audio->id); demuxer->audio->id=-2; } } if(demuxer->video->id>=0){ sh_video_t* sh=demuxer->v_streams[demuxer->video->id]; if(sh){ demuxer->video->sh=sh; sh->ds=demuxer->video; } else { mp_msg(MSGT_DEMUX, MSGL_ERR, "MOV: selected video stream (%d) does not exists\n",demuxer->video->id); demuxer->video->id=-2; } } #if 1 if(verbose>2){ for(t_no=0;t_notrack_db;t_no++){ mov_track_t* trak=priv->tracks[t_no]; if(trak->type==MOV_TRAK_GENERIC){ int i; int fd; char name[20]; mp_msg(MSGT_DEMUX, MSGL_INFO, "MOV: Track #%d: Extracting %d data chunks to files\n",t_no,trak->samples_size); for (i=0; isamples_size; i++) { int len=trak->samples[i].size; char buf[len]; stream_seek(demuxer->stream, trak->samples[i].pos); snprintf(name, 20, "t%02d-s%03d.%s", t_no,i, (trak->media_handler==MOV_FOURCC('f','l','s','h')) ? "swf":"dump"); fd = open(name, O_CREAT|O_WRONLY); // { int j; // for(j=0;jstdata_len-3; j++) // printf("stdata[%d]=0x%X ize=0x%X\n",j,char2int(trak->stdata,j),MOV_FOURCC('z','l','i','b')); // } if( //trak->media_handler==MOV_FOURCC('s','p','r','t') && trak->stdata_len>=16 && char2int(trak->stdata,12)==MOV_FOURCC('z','l','i','b') ){ int newlen=stream_read_dword(demuxer->stream); #ifdef HAVE_ZLIB // unzip: z_stream zstrm; int zret; char buf2[newlen]; len-=4; stream_read(demuxer->stream, buf, len); zstrm.zalloc = (alloc_func)0; zstrm.zfree = (free_func)0; zstrm.opaque = (voidpf)0; zstrm.next_in = buf; zstrm.avail_in = len; zstrm.next_out = buf2; zstrm.avail_out = newlen; zret = inflateInit(&zstrm); zret = inflate(&zstrm, Z_NO_FLUSH); if(newlen != zstrm.total_out) mp_msg(MSGT_DEMUX, MSGL_WARN, "Warning! unzipped frame size differs hdr: %d zlib: %d\n",newlen,zstrm.total_out); write(fd, buf2, newlen); } else { #else len-=4; printf("******* ZLIB COMPRESSED SAMPLE!!!!! (%d->%d bytes) *******\n",len,newlen); } { #endif stream_read(demuxer->stream, buf, len); write(fd, buf, len); } close(fd); } } } } demuxer->stream->eof = 0; #endif return 1; } /** * \brief return the mov track that belongs to a demuxer stream * \param ds the demuxer stream, may be NULL * \return the mov track info structure belonging to the stream, * NULL if not found */ static mov_track_t *stream_track(mov_priv_t *priv, demux_stream_t *ds) { if (ds && (ds->id >= 0) && (ds->id < priv->track_db)) return priv->tracks[ds->id]; return NULL; } // return value: // 0 = EOF or no stream found // 1 = successfully read a packet int demux_mov_fill_buffer(demuxer_t *demuxer,demux_stream_t* ds){ mov_priv_t* priv=demuxer->priv; mov_track_t* trak=NULL; float pts; int x; off_t pos; trak = stream_track(priv, ds); if (!trak) return 0; if(trak->samplesize){ // read chunk: if(trak->pos>=trak->chunks_size) return 0; // EOF stream_seek(demuxer->stream,trak->chunks[trak->pos].pos); pts=(float)(trak->chunks[trak->pos].sample*trak->duration)/(float)trak->timescale; if(trak->samplesize!=1) { mp_msg(MSGT_DEMUX, MSGL_DBG2, "WARNING! Samplesize(%d) != 1\n", trak->samplesize); x=trak->chunks[trak->pos].size*trak->samplesize; } else x=trak->chunks[trak->pos].size; // printf("X = %d\n", x); /* the following stuff is audio related */ if (trak->type == MOV_TRAK_AUDIO){ if(trak->stdata_len>=44 && trak->stdata[9]>=1 && char2int(trak->stdata,28)>0){ // stsd version 1 - we have audio compression ratio info: x/=char2int(trak->stdata,28); // samples/packet // x*=char2int(trak->stdata,32); // bytes/packet x*=char2int(trak->stdata,36); // bytes/frame } else { if(ds->ss_div && ds->ss_mul){ // workaround for buggy files like 7up-high-traffic-areas.mov, // with missing stsd v1 header containing compression rate x/=ds->ss_div; x*=ds->ss_mul; // compression ratio fix ! HACK ! } else { x*=trak->nchannels; x*=trak->samplebytes; } } mp_msg(MSGT_DEMUX, MSGL_DBG2, "Audio sample %d bytes pts %5.3f\n",trak->chunks[trak->pos].size*trak->samplesize,pts); } /* MOV_TRAK_AUDIO */ pos=trak->chunks[trak->pos].pos; } else { int frame=trak->pos; // editlist support: if(trak->type == MOV_TRAK_VIDEO && trak->editlist_size>=1){ // find the right editlist entry: if(frameeditlist[trak->editlist_pos].start_frame) trak->editlist_pos=0; while(trak->editlist_poseditlist_size-1 && frame>=trak->editlist[trak->editlist_pos+1].start_frame) ++trak->editlist_pos; if(frame>=trak->editlist[trak->editlist_pos].start_frame+ trak->editlist[trak->editlist_pos].frames) return 0; // EOF // calc real frame index: frame-=trak->editlist[trak->editlist_pos].start_frame; frame+=trak->editlist[trak->editlist_pos].start_sample; // calc pts: pts=(float)(trak->samples[frame].pts+ trak->editlist[trak->editlist_pos].pts_offset)/(float)trak->timescale; } else { if(frame>=trak->samples_size) return 0; // EOF pts=(float)trak->samples[frame].pts/(float)trak->timescale; } // read sample: stream_seek(demuxer->stream,trak->samples[frame].pos); x=trak->samples[frame].size; pos=trak->samples[frame].pos; } if(trak->pos==0 && trak->stream_header_len>0){ // we have to append the stream header... demux_packet_t* dp=new_demux_packet(x+trak->stream_header_len); memcpy(dp->buffer,trak->stream_header,trak->stream_header_len); stream_read(demuxer->stream,dp->buffer+trak->stream_header_len,x); free(trak->stream_header); trak->stream_header = NULL; trak->stream_header_len = 0; dp->pts=pts; dp->flags=0; dp->pos=pos; // FIXME? ds_add_packet(ds,dp); } else ds_read_packet(ds,demuxer->stream,x,pts,pos,0); ++trak->pos; return 1; } static float mov_seek_track(mov_track_t* trak,float pts,int flags){ // printf("MOV track seek called %5.3f \n",pts); if(flags&2) pts*=trak->length; else pts*=(float)trak->timescale; if(trak->samplesize){ int sample=pts/trak->duration; // printf("MOV track seek - chunk: %d (pts: %5.3f dur=%d) \n",sample,pts,trak->duration); if(!(flags&1)) sample+=trak->chunks[trak->pos].sample; // relative trak->pos=0; while(trak->poschunks_size && trak->chunks[trak->pos].samplepos; pts=(float)(trak->chunks[trak->pos].sample*trak->duration)/(float)trak->timescale; } else { unsigned int ipts; if(!(flags&1)) pts+=trak->samples[trak->pos].pts; if(pts<0) pts=0; ipts=pts; //printf("MOV track seek - sample: %d \n",ipts); for(trak->pos=0;trak->possamples_size;++trak->pos){ if(trak->samples[trak->pos].pts>=ipts) break; // found it! } if(trak->keyframes_size){ // find nearest keyframe int i; for(i=0;ikeyframes_size;i++){ if(trak->keyframes[i]>=trak->pos) break; } if(i>0 && (trak->keyframes[i]-trak->pos) > (trak->pos-trak->keyframes[i-1])) --i; trak->pos=trak->keyframes[i]; // printf("nearest keyframe: %d \n",trak->pos); } pts=(float)trak->samples[trak->pos].pts/(float)trak->timescale; } // printf("MOV track seek done: %5.3f \n",pts); return pts; } void demux_seek_mov(demuxer_t *demuxer,float pts,int flags){ mov_priv_t* priv=demuxer->priv; demux_stream_t* ds; mov_track_t* trak; // printf("MOV seek called %5.3f flag=%d \n",pts,flags); ds=demuxer->video; trak = stream_track(priv, ds); if (trak) { //if(flags&2) pts*=(float)trak->length/(float)trak->timescale; //if(!(flags&1)) pts+=ds->pts; pts=ds->pts=mov_seek_track(trak,pts,flags); flags=1; // absolute seconds } ds=demuxer->audio; trak = stream_track(priv, ds); if (trak) { //if(flags&2) pts*=(float)trak->length/(float)trak->timescale; //if(!(flags&1)) pts+=ds->pts; ds->pts=mov_seek_track(trak,pts,flags); } } int demux_mov_control(demuxer_t *demuxer, int cmd, void *arg){ mov_track_t* track; // try the video track track = stream_track(demuxer->priv, demuxer->video); if (!track || !track->length) // otherwise try to get the info from the audio track track = stream_track(demuxer->priv, demuxer->audio); if (!track || !track->length) return DEMUXER_CTRL_DONTKNOW; switch(cmd) { case DEMUXER_CTRL_GET_TIME_LENGTH: if (!track->timescale) return DEMUXER_CTRL_DONTKNOW; *((unsigned long *)arg) = track->length / track->timescale; return DEMUXER_CTRL_OK; case DEMUXER_CTRL_GET_PERCENT_POS: { off_t pos = track->pos; if (track->durmap_size >= 1) pos *= track->durmap[0].dur; *((int *)arg) = (int)(100 * pos / track->length); return DEMUXER_CTRL_OK; } } return DEMUXER_CTRL_NOTIMPL; }