MP4 progressive connector cleanups, fixes and simplification.
This commit is contained in:
Thulinma
parent
bb16647467
commit
bda368b75f
1 changed files with 163 additions and 229 deletions
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@ -49,21 +49,15 @@ namespace Connector_HTTP {
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std::string DTSCMeta2MP4Header(DTSC::Meta & metaData, std::set<int> & tracks, long long & size){
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std::stringstream header;
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//ftyp box
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/// \todo fill ftyp with non hardcoded values from file
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MP4::FTYP ftypBox;
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ftypBox.setMajorBrand(0x6D703431);//mp41
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ftypBox.setMinorVersion(0);
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ftypBox.setCompatibleBrands(0x69736f6d,0);
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ftypBox.setCompatibleBrands(0x69736f32,1);
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ftypBox.setCompatibleBrands(0x61766331,2);
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ftypBox.setCompatibleBrands(0x6D703431,3);
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header << std::string(ftypBox.asBox(),ftypBox.boxedSize());
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uint64_t mdatSize = 0;
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//moov box
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MP4::MOOV moovBox;{
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MP4::MOOV moovBox;
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unsigned int moovOffset = 0;
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{
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//calculating longest duration
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long long int fileDuration = 0;
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long long int firstms = -1;
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long long int lastms = -1;
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for (std::set<int>::iterator it = tracks.begin(); it != tracks.end(); it++) {
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@ -74,222 +68,163 @@ namespace Connector_HTTP {
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firstms = metaData.tracks[*it].firstms;
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}
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}
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fileDuration = lastms - firstms;
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//MP4::MVHD mvhdBox(fileDuration);
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MP4::MVHD mvhdBox;
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mvhdBox.setVersion(0);
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mvhdBox.setCreationTime(0);
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mvhdBox.setModificationTime(0);
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mvhdBox.setTimeScale(1000);
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mvhdBox.setRate(0x10000);
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mvhdBox.setDuration(fileDuration);
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mvhdBox.setTrackID(0);
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mvhdBox.setVolume(256);
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mvhdBox.setMatrix(0x00010000,0);
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mvhdBox.setMatrix(0,1);
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mvhdBox.setMatrix(0,2);
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mvhdBox.setMatrix(0,3);
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mvhdBox.setMatrix(0x00010000,4);
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mvhdBox.setMatrix(0,5);
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mvhdBox.setMatrix(0,6);
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mvhdBox.setMatrix(0,7);
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mvhdBox.setMatrix(0x40000000,8);
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moovBox.setContent(mvhdBox, 0);
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MP4::MVHD mvhdBox(lastms - firstms);
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moovBox.setContent(mvhdBox, moovOffset++);
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}
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{//start arbitrary track addition for headeri
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int boxOffset = 1;
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for (std::set<int>::iterator it = tracks.begin(); it != tracks.end(); it++) {
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int timescale = 0;
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MP4::TRAK trakBox;
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for (std::set<int>::iterator it = tracks.begin(); it != tracks.end(); it++) {
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MP4::TRAK trakBox;
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{
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{
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MP4::TKHD tkhdBox(*it, metaData.tracks[*it].lastms - metaData.tracks[*it].firstms, metaData.tracks[*it].width, metaData.tracks[*it].height);
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trakBox.setContent(tkhdBox, 0);
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}{
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MP4::MDIA mdiaBox;
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unsigned int mdiaOffset = 0;
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{
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MP4::TKHD tkhdBox;
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tkhdBox.setVersion(0);
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tkhdBox.setFlags(15);
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tkhdBox.setTrackID(*it);
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tkhdBox.setDuration(metaData.tracks[*it].lastms - metaData.tracks[*it].firstms);
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if (metaData.tracks[*it].type == "video"){
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tkhdBox.setWidth(metaData.tracks[*it].width << 16);
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tkhdBox.setHeight(metaData.tracks[*it].height << 16);
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tkhdBox.setVolume(0);
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}else{
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tkhdBox.setVolume(256);
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tkhdBox.setAlternateGroup(1);
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}
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tkhdBox.setMatrix(0x00010000,0);
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tkhdBox.setMatrix(0,1);
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tkhdBox.setMatrix(0,2);
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tkhdBox.setMatrix(0,3);
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tkhdBox.setMatrix(0x00010000,4);
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tkhdBox.setMatrix(0,5);
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tkhdBox.setMatrix(0,6);
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tkhdBox.setMatrix(0,7);
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tkhdBox.setMatrix(0x40000000,8);
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trakBox.setContent(tkhdBox, 0);
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}{
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MP4::MDIA mdiaBox;
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MP4::MDHD mdhdBox(metaData.tracks[*it].lastms - metaData.tracks[*it].firstms);
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mdiaBox.setContent(mdhdBox, mdiaOffset++);
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}//MDHD box
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{
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MP4::HDLR hdlrBox(metaData.tracks[*it].type, metaData.tracks[*it].getIdentifier());
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mdiaBox.setContent(hdlrBox, mdiaOffset++);
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}//hdlr box
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{
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MP4::MINF minfBox;
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unsigned int minfOffset = 0;
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if (metaData.tracks[*it].type== "video"){
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MP4::VMHD vmhdBox;
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vmhdBox.setFlags(1);
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minfBox.setContent(vmhdBox,minfOffset++);
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}else if (metaData.tracks[*it].type == "audio"){
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MP4::SMHD smhdBox;
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minfBox.setContent(smhdBox,minfOffset++);
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}//type box
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{
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MP4::MDHD mdhdBox(0);/// \todo fix constructor mdhd in lib
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mdhdBox.setCreationTime(0);
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mdhdBox.setModificationTime(0);
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//Calculating media time based on sampledelta. Probably cheating, but it works...
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timescale = ((double)(42 * metaData.tracks[*it].parts.size() ) / (metaData.tracks[*it].lastms - metaData.tracks[*it].firstms)) * 1000;
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mdhdBox.setTimeScale(timescale);
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mdhdBox.setDuration((metaData.tracks[*it].lastms - metaData.tracks[*it].firstms) * ((double)timescale / 1000));
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mdiaBox.setContent(mdhdBox, 0);
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}//MDHD box
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MP4::DINF dinfBox;
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MP4::DREF drefBox;
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dinfBox.setContent(drefBox,0);
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minfBox.setContent(dinfBox,minfOffset++);
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}//dinf box
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{
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MP4::HDLR hdlrBox;/// \todo fix constructor hdlr in lib
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MP4::STBL stblBox;
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unsigned int offset = 0;
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{
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MP4::STSD stsdBox;
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stsdBox.setVersion(0);
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if (metaData.tracks[*it].type == "video"){//boxname = codec
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MP4::VisualSampleEntry vse;
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if (metaData.tracks[*it].codec == "H264"){
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vse.setCodec("avc1");
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}
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vse.setDataReferenceIndex(1);
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vse.setWidth(metaData.tracks[*it].width);
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vse.setHeight(metaData.tracks[*it].height);
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MP4::AVCC avccBox;
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avccBox.setPayload(metaData.tracks[*it].init);
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vse.setCLAP(avccBox);
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stsdBox.setEntry(vse,0);
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}else if(metaData.tracks[*it].type == "audio"){//boxname = codec
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MP4::AudioSampleEntry ase;
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if (metaData.tracks[*it].codec == "AAC"){
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ase.setCodec("mp4a");
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ase.setDataReferenceIndex(1);
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}
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ase.setSampleRate(metaData.tracks[*it].rate);
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ase.setChannelCount(metaData.tracks[*it].channels);
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ase.setSampleSize(metaData.tracks[*it].size);
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//MP4::ESDS esdsBox(metaData.tracks[*it].init, metaData.tracks[*it].bps);
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MP4::ESDS esdsBox;
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//outputting these values first, so malloc isn't called as often.
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esdsBox.setESHeaderStartCodes(metaData.tracks[*it].init);
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esdsBox.setSLValue(2);
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esdsBox.setESDescriptorTypeLength(32+metaData.tracks[*it].init.size());
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esdsBox.setESID(2);
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esdsBox.setStreamPriority(0);
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esdsBox.setDecoderConfigDescriptorTypeLength(18 + metaData.tracks[*it].init.size());
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esdsBox.setByteObjectTypeID(0x40);
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esdsBox.setStreamType(5);
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esdsBox.setReservedFlag(1);
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esdsBox.setBufferSize(1250000);
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esdsBox.setMaximumBitRate(10000000);
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esdsBox.setAverageBitRate(metaData.tracks[*it].bps * 8);
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esdsBox.setConfigDescriptorTypeLength(5);
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esdsBox.setSLConfigDescriptorTypeTag(0x6);
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esdsBox.setSLConfigExtendedDescriptorTypeTag(0x808080);
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esdsBox.setSLDescriptorTypeLength(1);
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ase.setCodecBox(esdsBox);
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stsdBox.setEntry(ase,0);
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}
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stblBox.setContent(stsdBox,offset++);
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}//stsd box
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{
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MP4::STTS sttsBox;
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sttsBox.setVersion(0);
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if (metaData.tracks[*it].parts.size()){
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for (unsigned int part = 0; part < metaData.tracks[*it].parts.size(); part++){
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MP4::STTSEntry newEntry;
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newEntry.sampleCount = 1;
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newEntry.sampleDelta = metaData.tracks[*it].parts[part].getDuration();
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sttsBox.setSTTSEntry(newEntry, part);
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}
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}
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stblBox.setContent(sttsBox,offset++);
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}//stts box
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if (metaData.tracks[*it].type == "video"){
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hdlrBox.setHandlerType(0x76696465);//vide
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}else if (metaData.tracks[*it].type == "audio"){
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hdlrBox.setHandlerType(0x736F756E);//soun
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}
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hdlrBox.setName(metaData.tracks[*it].getIdentifier());
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mdiaBox.setContent(hdlrBox, 1);
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}//hdlr box
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{
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MP4::MINF minfBox;
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unsigned int minf_offset = 0;
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if (metaData.tracks[*it].type== "video"){
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MP4::VMHD vmhdBox;
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vmhdBox.setFlags(1);
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minfBox.setContent(vmhdBox,minf_offset++);
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}else if (metaData.tracks[*it].type == "audio"){
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MP4::SMHD smhdBox;
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minfBox.setContent(smhdBox,minf_offset++);
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}//type box
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//STSS Box here
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MP4::STSS stssBox;
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stssBox.setVersion(0);
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int tmpCount = 0;
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int tmpItCount = 0;
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for ( std::deque< DTSC::Key>::iterator tmpIt = metaData.tracks[*it].keys.begin(); tmpIt != metaData.tracks[*it].keys.end(); tmpIt ++) {
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stssBox.setSampleNumber(tmpCount,tmpItCount);
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tmpCount += tmpIt->getParts();
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tmpItCount ++;
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}
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stblBox.setContent(stssBox,offset++);
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}//stss box
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{
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MP4::DINF dinfBox;
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MP4::DREF drefBox;/// \todo fix constructor dref in lib
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drefBox.setVersion(0);
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MP4::URL urlBox;
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urlBox.setFlags(1);
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drefBox.setDataEntry(urlBox,0);
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dinfBox.setContent(drefBox,0);
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minfBox.setContent(dinfBox,minf_offset++);
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}//dinf box
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MP4::STSC stscBox;
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stscBox.setVersion(0);
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MP4::STSCEntry stscEntry;
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stscEntry.firstChunk = 1;
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stscEntry.samplesPerChunk = 1;
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stscEntry.sampleDescriptionIndex = 1;
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stscBox.setSTSCEntry(stscEntry, 0);
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stblBox.setContent(stscBox,offset++);
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}//stsc box
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{
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MP4::STBL stblBox;
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unsigned int offset = 0;
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{
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MP4::STSD stsdBox;
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stsdBox.setVersion(0);
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if (metaData.tracks[*it].type == "video"){//boxname = codec
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MP4::VisualSampleEntry vse;
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if (metaData.tracks[*it].codec == "H264"){
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vse.setCodec("avc1");
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}
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vse.setDataReferenceIndex(1);
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vse.setWidth(metaData.tracks[*it].width);
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vse.setHeight(metaData.tracks[*it].height);
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MP4::AVCC avccBox;
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avccBox.setPayload(metaData.tracks[*it].init);
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vse.setCLAP(avccBox);
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stsdBox.setEntry(vse,0);
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}else if(metaData.tracks[*it].type == "audio"){//boxname = codec
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MP4::AudioSampleEntry ase;
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if (metaData.tracks[*it].codec == "AAC"){
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ase.setCodec("mp4a");
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ase.setDataReferenceIndex(1);
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}
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ase.setSampleRate(metaData.tracks[*it].rate);
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ase.setChannelCount(metaData.tracks[*it].channels);
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ase.setSampleSize(metaData.tracks[*it].size);
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//MP4::ESDS esdsBox(metaData.tracks[*it].init, metaData.tracks[*it].bps);
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MP4::ESDS esdsBox;
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//outputting these values first, so malloc isn't called as often.
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esdsBox.setESHeaderStartCodes(metaData.tracks[*it].init);
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esdsBox.setSLValue(2);
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esdsBox.setESDescriptorTypeLength(32+metaData.tracks[*it].init.size());
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esdsBox.setESID(2);
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esdsBox.setStreamPriority(0);
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esdsBox.setDecoderConfigDescriptorTypeLength(18 + metaData.tracks[*it].init.size());
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esdsBox.setByteObjectTypeID(0x40);
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esdsBox.setStreamType(5);
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esdsBox.setReservedFlag(1);
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esdsBox.setBufferSize(1250000);
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esdsBox.setMaximumBitRate(10000000);
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esdsBox.setAverageBitRate(metaData.tracks[*it].bps * 8);
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esdsBox.setConfigDescriptorTypeLength(5);
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esdsBox.setSLConfigDescriptorTypeTag(0x6);
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esdsBox.setSLConfigExtendedDescriptorTypeTag(0x808080);
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esdsBox.setSLDescriptorTypeLength(1);
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ase.setCodecBox(esdsBox);
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stsdBox.setEntry(ase,0);
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}
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stblBox.setContent(stsdBox,offset++);
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}//stsd box
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/// \todo update following stts lines
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{
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MP4::STTS sttsBox;//current version probably causes problems
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sttsBox.setVersion(0);
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MP4::STTSEntry newEntry;
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newEntry.sampleCount = metaData.tracks[*it].parts.size();
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//42, Used as magic number for timescale calculation
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newEntry.sampleDelta = 42;
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sttsBox.setSTTSEntry(newEntry, 0);
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stblBox.setContent(sttsBox,offset++);
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}//stts box
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if (metaData.tracks[*it].type == "video"){
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//STSS Box here
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MP4::STSS stssBox;
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stssBox.setVersion(0);
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int tmpCount = 0;
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int tmpItCount = 0;
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for ( std::deque< DTSC::Key>::iterator tmpIt = metaData.tracks[*it].keys.begin(); tmpIt != metaData.tracks[*it].keys.end(); tmpIt ++) {
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stssBox.setSampleNumber(tmpCount,tmpItCount);
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tmpCount += tmpIt->getParts();
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tmpItCount ++;
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}
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stblBox.setContent(stssBox,offset++);
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}//stss box
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{
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MP4::STSC stscBox;
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stscBox.setVersion(0);
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MP4::STSCEntry stscEntry;
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stscEntry.firstChunk = 1;
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stscEntry.samplesPerChunk = 1;
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stscEntry.sampleDescriptionIndex = 1;
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stscBox.setSTSCEntry(stscEntry, 0);
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stblBox.setContent(stscBox,offset++);
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}//stsc box
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{
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uint32_t total = 0;
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MP4::STSZ stszBox;
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stszBox.setVersion(0);
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total = 0;
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for (std::deque< DTSC::Part>::iterator partIt = metaData.tracks[*it].parts.begin(); partIt != metaData.tracks[*it].parts.end(); partIt ++) {
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stszBox.setEntrySize(partIt->getSize(), total);//in bytes in file
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size += partIt->getSize();
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total++;
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}
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stblBox.setContent(stszBox,offset++);
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}//stsz box
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//add STCO boxes here
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{
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MP4::STCO stcoBox;
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stcoBox.setVersion(1);
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//Inserting empty values on purpose here, will be fixed later.
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if (metaData.tracks[*it].parts.size() != 0){
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stcoBox.setChunkOffset(0, metaData.tracks[*it].parts.size() - 1);//this inserts all empty entries at once
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}
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stblBox.setContent(stcoBox,offset++);
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}//stco box
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minfBox.setContent(stblBox,minf_offset++);
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}//stbl box
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mdiaBox.setContent(minfBox, 2);
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}//minf box
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trakBox.setContent(mdiaBox, 1);
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}
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}//trak Box
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moovBox.setContent(trakBox, boxOffset);
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boxOffset++;
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}
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}//end arbitrary track addition
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uint32_t total = 0;
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MP4::STSZ stszBox;
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stszBox.setVersion(0);
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total = 0;
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for (std::deque< DTSC::Part>::iterator partIt = metaData.tracks[*it].parts.begin(); partIt != metaData.tracks[*it].parts.end(); partIt ++) {
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stszBox.setEntrySize(partIt->getSize(), total);//in bytes in file
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size += partIt->getSize();
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total++;
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}
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stblBox.setContent(stszBox,offset++);
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}//stsz box
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//add STCO boxes here
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{
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MP4::STCO stcoBox;
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stcoBox.setVersion(1);
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//Inserting empty values on purpose here, will be fixed later.
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if (metaData.tracks[*it].parts.size() != 0){
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stcoBox.setChunkOffset(0, metaData.tracks[*it].parts.size() - 1);//this inserts all empty entries at once
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}
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stblBox.setContent(stcoBox,offset++);
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}//stco box
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minfBox.setContent(stblBox,minfOffset++);
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}//stbl box
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mdiaBox.setContent(minfBox, mdiaOffset++);
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}//minf box
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trakBox.setContent(mdiaBox, 1);
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}
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}//trak Box
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moovBox.setContent(trakBox, moovOffset++);
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}
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//initial offset length ftyp, length moov + 8
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unsigned long long int byteOffset = ftypBox.boxedSize() + moovBox.boxedSize() + 8;
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//update all STCO from the following map;
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@ -298,24 +233,24 @@ namespace Connector_HTTP {
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for (unsigned int i = 1; i < moovBox.getContentCount(); i++){
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//10 lines to get the STCO box.
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MP4::TRAK checkTrakBox;
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MP4::MDIA checkMdiaBox;
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||||
MP4::TKHD checkTkhdBox;
|
||||
MP4::Box checkMdiaBox;
|
||||
MP4::Box checkTkhdBox;
|
||||
MP4::MINF checkMinfBox;
|
||||
MP4::STBL checkStblBox;
|
||||
//MP4::STCO checkStcoBox;
|
||||
checkTrakBox = ((MP4::TRAK&)moovBox.getContent(i));
|
||||
for (unsigned int j = 0; j < checkTrakBox.getContentCount(); j++){
|
||||
if (checkTrakBox.getContent(j).isType("mdia")){
|
||||
checkMdiaBox = ((MP4::MDIA&)checkTrakBox.getContent(j));
|
||||
checkMdiaBox = checkTrakBox.getContent(j);
|
||||
break;
|
||||
}
|
||||
if (checkTrakBox.getContent(j).isType("tkhd")){
|
||||
checkTkhdBox = ((MP4::TKHD&)checkTrakBox.getContent(j));
|
||||
checkTkhdBox = checkTrakBox.getContent(j);
|
||||
}
|
||||
}
|
||||
for (unsigned int j = 0; j < checkMdiaBox.getContentCount(); j++){
|
||||
if (checkMdiaBox.getContent(j).isType("minf")){
|
||||
checkMinfBox = ((MP4::MINF&)checkMdiaBox.getContent(j));
|
||||
for (unsigned int j = 0; j < ((MP4::MDIA&)checkMdiaBox).getContentCount(); j++){
|
||||
if (((MP4::MDIA&)checkMdiaBox).getContent(j).isType("minf")){
|
||||
checkMinfBox = ((MP4::MINF&)((MP4::MDIA&)checkMdiaBox).getContent(j));
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
@ -327,7 +262,7 @@ namespace Connector_HTTP {
|
|||
}
|
||||
for (unsigned int j = 0; j < checkStblBox.getContentCount(); j++){
|
||||
if (checkStblBox.getContent(j).isType("stco")){
|
||||
checkStcoBoxes.insert( std::pair<int, MP4::STCO>(checkTkhdBox.getTrackID(), ((MP4::STCO&)checkStblBox.getContent(j)) ));
|
||||
checkStcoBoxes.insert( std::pair<int, MP4::STCO>(((MP4::TKHD&)checkTkhdBox).getTrackID(), ((MP4::STCO&)checkStblBox.getContent(j)) ));
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
@ -363,13 +298,12 @@ namespace Connector_HTTP {
|
|||
//remove highest keyPart
|
||||
sortSet.erase(sortSet.begin());
|
||||
}
|
||||
//calculating the offset where the STCO box will be in the main MOOV box
|
||||
//needed for probable optimise
|
||||
mdatSize = totalByteOffset;
|
||||
|
||||
mdatSize = totalByteOffset+8;
|
||||
|
||||
header << std::string(moovBox.asBox(),moovBox.boxedSize());
|
||||
|
||||
header << (char)((mdatSize>>24) & 0x000000FF) << (char)((mdatSize>>16) & 0x000000FF) << (char)((mdatSize>>8) & 0x000000FF) << (char)(mdatSize & 0x000000FF) << "mdat";
|
||||
header << (char)((mdatSize>>24) & 0xFF) << (char)((mdatSize>>16) & 0xFF) << (char)((mdatSize>>8) & 0xFF) << (char)(mdatSize & 0xFF) << "mdat";
|
||||
//end of header
|
||||
|
||||
size += header.str().size();
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue