EBML updates:
- AV1 support - Support for outputting fragments longer than 30 seconds in duration - Fixed FireFox support for Opus audio tracks - Added support for stdin live input of EBML - Fixed broken timestamps when seeking in VoD EBML files - Analyser now calculates offsets for (manual) double-checking - Added JSON track support to EBML input and output - Added basic input support for SRT/ASS/SSA subtitles - Opus CODECDELAY now actually calculated. - Fixed Opus in Firefox - Improved MP3 support, more robust handling of corruption, support for non-standard timescale sources
This commit is contained in:
Thulinma
parent
7f770b27b7
commit
68a1bff34f
8 changed files with 351 additions and 91 deletions
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@ -1,6 +1,7 @@
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#include "output_ebml.h"
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#include <mist/ebml_socketglue.h>
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#include <mist/riff.h>
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#include <mist/opus.h>
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namespace Mist{
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OutEBML::OutEBML(Socket::Connection &conn) : HTTPOutput(conn){
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@ -15,6 +16,9 @@ namespace Mist{
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if (config->getString("target").size()){
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if (config->getString("target").find(".webm") != std::string::npos){doctype = "webm";}
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initialize();
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if (myMeta.vod){
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calcVodSizes();
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}
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if (!streamName.size()){
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WARN_MSG("Recording unconnected EBML output to file! Cancelled.");
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conn.close();
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@ -55,6 +59,7 @@ namespace Mist{
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capa["codecs"][0u][0u].append("VP9");
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capa["codecs"][0u][0u].append("theora");
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capa["codecs"][0u][0u].append("MPEG2");
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capa["codecs"][0u][0u].append("AV1");
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capa["codecs"][0u][1u].append("AAC");
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capa["codecs"][0u][1u].append("vorbis");
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capa["codecs"][0u][1u].append("opus");
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@ -65,6 +70,7 @@ namespace Mist{
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capa["codecs"][0u][1u].append("MP3");
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capa["codecs"][0u][1u].append("FLOAT");
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capa["codecs"][0u][1u].append("AC3");
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capa["codecs"][0u][2u].append("+JSON");
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capa["methods"][0u]["handler"] = "http";
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capa["methods"][0u]["type"] = "html5/video/webm";
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capa["methods"][0u]["priority"] = 11ll;
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@ -131,12 +137,13 @@ namespace Mist{
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currentClusterTime = thisPacket.getTime();
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if (myMeta.vod){
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//In case of VoD, clusters are aligned with the main track fragments
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//EXCEPT when they are more than 30 seconds long, because clusters are limited to -32 to 32 seconds.
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DTSC::Track &Trk = myMeta.tracks[getMainSelectedTrack()];
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uint32_t fragIndice = Trk.timeToFragnum(currentClusterTime);
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newClusterTime = Trk.getKey(Trk.fragments[fragIndice].getNumber()).getTime() + Trk.fragments[fragIndice].getDuration();
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//The last fragment should run until the end of time
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if (fragIndice == Trk.fragments.size() - 1){
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newClusterTime = 0xFFFFFFFFFFFFFFFFull;
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//Limit clusters to 30s, and the last fragment should always be 30s, just in case.
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if ((newClusterTime - currentClusterTime > 30000) || (fragIndice == Trk.fragments.size() - 1)){
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newClusterTime = currentClusterTime + 30000;
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}
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EXTREME_MSG("Cluster: %llu - %llu (%lu/%lu) = %llu", currentClusterTime, newClusterTime, fragIndice, Trk.fragments.size(), clusterSize(currentClusterTime, newClusterTime));
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}else{
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@ -157,6 +164,7 @@ namespace Mist{
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if (Trk.codec == "HEVC"){return "V_MPEGH/ISO/HEVC";}
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if (Trk.codec == "VP8"){return "V_VP8";}
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if (Trk.codec == "VP9"){return "V_VP9";}
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if (Trk.codec == "AV1"){return "V_AV1";}
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if (Trk.codec == "AAC"){return "A_AAC";}
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if (Trk.codec == "vorbis"){return "A_VORBIS";}
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if (Trk.codec == "theora"){return "V_THEORA";}
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@ -168,6 +176,7 @@ namespace Mist{
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if (Trk.codec == "ALAW"){return "A_MS/ACM";}
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if (Trk.codec == "ULAW"){return "A_MS/ACM";}
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if (Trk.codec == "FLOAT"){return "A_PCM/FLOAT/IEEE";}
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if (Trk.codec == "JSON"){return "M_JSON";}
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return "E_UNKNOWN";
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}
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@ -185,10 +194,16 @@ namespace Mist{
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}else{
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if (Trk.init.size()){sendLen += EBML::sizeElemStr(EBML::EID_CODECPRIVATE, Trk.init);}
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}
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if (Trk.codec == "opus" && Trk.init.size() > 11){
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sendLen += EBML::sizeElemUInt(EBML::EID_CODECDELAY, Opus::getPreSkip(Trk.init.data())*1000000/48);
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sendLen += EBML::sizeElemUInt(EBML::EID_SEEKPREROLL, 80000000);
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}
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if (Trk.type == "video"){
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sendLen += EBML::sizeElemUInt(EBML::EID_TRACKTYPE, 1);
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subLen += EBML::sizeElemUInt(EBML::EID_PIXELWIDTH, Trk.width);
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subLen += EBML::sizeElemUInt(EBML::EID_PIXELHEIGHT, Trk.height);
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subLen += EBML::sizeElemUInt(EBML::EID_DISPLAYWIDTH, Trk.width);
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subLen += EBML::sizeElemUInt(EBML::EID_DISPLAYHEIGHT, Trk.height);
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sendLen += EBML::sizeElemHead(EBML::EID_VIDEO, subLen);
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}
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if (Trk.type == "audio"){
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@ -198,6 +213,9 @@ namespace Mist{
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subLen += EBML::sizeElemUInt(EBML::EID_BITDEPTH, Trk.size);
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sendLen += EBML::sizeElemHead(EBML::EID_AUDIO, subLen);
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}
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if (Trk.type == "meta"){
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sendLen += EBML::sizeElemUInt(EBML::EID_TRACKTYPE, 3);
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}
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sendLen += subLen;
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// Now actually send.
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@ -215,11 +233,17 @@ namespace Mist{
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}else{
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if (Trk.init.size()){EBML::sendElemStr(myConn, EBML::EID_CODECPRIVATE, Trk.init);}
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}
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if (Trk.codec == "opus"){
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EBML::sendElemUInt(myConn, EBML::EID_CODECDELAY, Opus::getPreSkip(Trk.init.data())*1000000/48);
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EBML::sendElemUInt(myConn, EBML::EID_SEEKPREROLL, 80000000);
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}
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if (Trk.type == "video"){
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EBML::sendElemUInt(myConn, EBML::EID_TRACKTYPE, 1);
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EBML::sendElemHead(myConn, EBML::EID_VIDEO, subLen);
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EBML::sendElemUInt(myConn, EBML::EID_PIXELWIDTH, Trk.width);
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EBML::sendElemUInt(myConn, EBML::EID_PIXELHEIGHT, Trk.height);
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EBML::sendElemUInt(myConn, EBML::EID_DISPLAYWIDTH, Trk.width);
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EBML::sendElemUInt(myConn, EBML::EID_DISPLAYHEIGHT, Trk.height);
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}
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if (Trk.type == "audio"){
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EBML::sendElemUInt(myConn, EBML::EID_TRACKTYPE, 2);
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@ -228,6 +252,9 @@ namespace Mist{
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EBML::sendElemDbl(myConn, EBML::EID_SAMPLINGFREQUENCY, Trk.rate);
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EBML::sendElemUInt(myConn, EBML::EID_BITDEPTH, Trk.size);
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}
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if (Trk.type == "meta"){
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EBML::sendElemUInt(myConn, EBML::EID_TRACKTYPE, 3);
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}
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}
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uint32_t OutEBML::sizeElemTrackEntry(const DTSC::Track &Trk){
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@ -244,10 +271,16 @@ namespace Mist{
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}else{
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if (Trk.init.size()){sendLen += EBML::sizeElemStr(EBML::EID_CODECPRIVATE, Trk.init);}
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}
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if (Trk.codec == "opus"){
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sendLen += EBML::sizeElemUInt(EBML::EID_CODECDELAY, Opus::getPreSkip(Trk.init.data())*1000000/48);
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sendLen += EBML::sizeElemUInt(EBML::EID_SEEKPREROLL, 80000000);
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}
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if (Trk.type == "video"){
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sendLen += EBML::sizeElemUInt(EBML::EID_TRACKTYPE, 1);
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subLen += EBML::sizeElemUInt(EBML::EID_PIXELWIDTH, Trk.width);
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subLen += EBML::sizeElemUInt(EBML::EID_PIXELHEIGHT, Trk.height);
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subLen += EBML::sizeElemUInt(EBML::EID_DISPLAYWIDTH, Trk.width);
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subLen += EBML::sizeElemUInt(EBML::EID_DISPLAYHEIGHT, Trk.height);
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sendLen += EBML::sizeElemHead(EBML::EID_VIDEO, subLen);
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}
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if (Trk.type == "audio"){
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@ -257,6 +290,9 @@ namespace Mist{
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subLen += EBML::sizeElemUInt(EBML::EID_BITDEPTH, Trk.size);
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sendLen += EBML::sizeElemHead(EBML::EID_AUDIO, subLen);
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}
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if (Trk.type == "meta"){
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sendLen += EBML::sizeElemUInt(EBML::EID_TRACKTYPE, 3);
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}
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sendLen += subLen;
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return EBML::sizeElemHead(EBML::EID_TRACKENTRY, sendLen) + sendLen;
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}
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@ -296,14 +332,9 @@ namespace Mist{
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if (myMeta.vod){
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EBML::sendElemHead(myConn, EBML::EID_CUES, cuesSize);
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uint64_t tmpsegSize = infoSize + tracksSize + seekheadSize + cuesSize + EBML::sizeElemHead(EBML::EID_CUES, cuesSize);
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uint32_t fragNo = 0;
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for (std::deque<DTSC::Fragment>::iterator it = Trk.fragments.begin(); it != Trk.fragments.end(); ++it){
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uint64_t clusterStart = Trk.getKey(it->getNumber()).getTime();
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//The first fragment always starts at time 0, even if the main track does not.
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if (!fragNo){clusterStart = 0;}
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EBML::sendElemCuePoint(myConn, clusterStart, Trk.trackID, tmpsegSize, 0);
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tmpsegSize += clusterSizes[fragNo];
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++fragNo;
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for (std::map<uint64_t, uint64_t>::iterator it = clusterSizes.begin(); it != clusterSizes.end(); ++it){
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EBML::sendElemCuePoint(myConn, it->first, Trk.trackID, tmpsegSize, 0);
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tmpsegSize += it->second;
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}
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}
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sentHeader = true;
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@ -331,10 +362,10 @@ namespace Mist{
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for (std::map<uint64_t, uint64_t>::iterator it = clusterSizes.begin(); it != clusterSizes.end(); ++it){
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VERYHIGH_MSG("Cluster %llu (%llu bytes) -> %llu to go", it->first, it->second, startPos);
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if (startPos < it->second){
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HIGH_MSG("Seek to fragment %llu (%llu ms)", it->first, Trk.getKey(Trk.fragments[it->first].getNumber()).getTime());
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HIGH_MSG("Seek to fragment at %llu ms", it->first);
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myConn.skipBytes(startPos);
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seek(Trk.getKey(Trk.fragments[it->first].getNumber()).getTime());
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newClusterTime = Trk.getKey(Trk.fragments[it->first].getNumber()).getTime();
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seek(it->first);
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newClusterTime = it->first;
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return;
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}
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startPos -= it->second;
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@ -484,10 +515,17 @@ namespace Mist{
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uint64_t clusterEnd = clusterStart + it->getDuration();
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//The first fragment always starts at time 0, even if the main track does not.
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if (!fragNo){clusterStart = 0;}
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//The last fragment always ends at the end, even if the main track does not.
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if (fragNo == Trk.fragments.size() - 1){clusterEnd = 0xFFFFFFFFFFFFFFFFull;}
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uint64_t cSize = clusterSize(clusterStart, clusterEnd);
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clusterSizes[fragNo] = cSize + EBML::sizeElemHead(EBML::EID_CLUSTER, cSize);
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uint64_t clusterTmpEnd = clusterEnd;
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do {
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clusterTmpEnd = clusterEnd;
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//The last fragment always ends at the end, even if the main track does not.
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if (fragNo == Trk.fragments.size() - 1){clusterTmpEnd = clusterStart + 30000;}
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//Limit clusters to 30 seconds.
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if (clusterTmpEnd - clusterStart > 30000){clusterTmpEnd = clusterStart + 30000;}
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uint64_t cSize = clusterSize(clusterStart, clusterTmpEnd);
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clusterSizes[clusterStart] = cSize + EBML::sizeElemHead(EBML::EID_CLUSTER, cSize);
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clusterStart = clusterTmpEnd;//Continue at the end of this cluster, if continuing.
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}while(clusterTmpEnd < clusterEnd);
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++fragNo;
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}
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//Calculating Cues size
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@ -500,14 +538,9 @@ namespace Mist{
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oldcuesSize = cuesSize;
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segmentSize = infoSize + tracksSize + seekheadSize + cuesSize + EBML::sizeElemHead(EBML::EID_CUES, cuesSize);
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uint32_t cuesInside = 0;
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fragNo = 0;
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for (std::deque<DTSC::Fragment>::iterator it = Trk.fragments.begin(); it != Trk.fragments.end(); ++it){
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uint64_t clusterStart = Trk.getKey(it->getNumber()).getTime();
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//The first fragment always starts at time 0, even if the main track does not.
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if (!fragNo){clusterStart = 0;}
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cuesInside += EBML::sizeElemCuePoint(clusterStart, Trk.trackID, segmentSize, 0);
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segmentSize += clusterSizes[fragNo];
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++fragNo;
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for (std::map<uint64_t, uint64_t>::iterator it = clusterSizes.begin(); it != clusterSizes.end(); ++it){
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cuesInside += EBML::sizeElemCuePoint(it->first, Trk.trackID, segmentSize, 0);
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segmentSize += it->second;
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}
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cuesSize = cuesInside;
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}while(cuesSize != oldcuesSize);
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@ -26,7 +26,7 @@ namespace Mist{
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uint32_t cuesSize;//size of Cues (excl. header)
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uint32_t seekheadSize;//size of SeekHead (incl. header)
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uint32_t seekSize;//size of contents of SeekHead (excl. header)
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std::map<uint64_t, uint64_t> clusterSizes;//sizes of Clusters (incl. header)
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std::map<uint64_t, uint64_t> clusterSizes;//sizes of Clusters by start time (incl. header)
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void byteSeek(uint64_t startPos);
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};
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}
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