///\brief Builds a bootstrap for use in HTTP Dynamic streaming.
///\param streamName The name of the stream.
///\param metadata The current metadata, used to generate the index.
///\param fragnum The index of the current fragment
///\return The generated bootstrap.
std::string dynamicBootstrap(std::string & streamName, JSON::Value & metadata, int fragnum = 0){
std::string empty;
MP4::ASRT asrt;
asrt.setUpdate(false);
asrt.setVersion(1);
//asrt.setQualityEntry(empty, 0);
if (metadata.isMember("live")){
asrt.setSegmentRun(1, 4294967295ul, 0);
}else{
asrt.setSegmentRun(1, metadata["keytime"].size(), 0);
}
MP4::AFRT afrt;
afrt.setUpdate(false);
afrt.setVersion(1);
afrt.setTimeScale(1000);
//afrt.setQualityEntry(empty, 0);
MP4::afrt_runtable afrtrun;
if (metadata.isMember("live")){
// restrict data to last 2 fragments, unless an earlier fragment was expressly requested.
int count = 0;
unsigned int begin = std::max(0u, metadata["keynum"].size() - 3);
while (begin > 0 && fragnum && metadata["keynum"][begin].asInt() > fragnum){
begin--;
}
for (int i = begin; i < metadata["keynum"].size(); i++){
afrtrun.firstFragment = metadata["keynum"][i].asInt();
afrtrun.firstTimestamp = metadata["keytime"][i].asInt();
afrtrun.duration = metadata["keylen"][i].asInt();
afrt.setFragmentRun(afrtrun, count++);
}
}else{
for (int i = 0; i < metadata["keynum"].size(); i++){
afrtrun.firstFragment = metadata["keynum"][i].asInt();
afrtrun.firstTimestamp = metadata["keytime"][i].asInt();
afrtrun.duration = metadata["keylen"][i].asInt();
afrt.setFragmentRun(afrtrun, i);
}
}
MP4::ABST abst;
abst.setVersion(1);
abst.setBootstrapinfoVersion(1);
abst.setProfile(0);
abst.setUpdate(false);
abst.setTimeScale(1000);
abst.setLive(false);
abst.setCurrentMediaTime(metadata["lastms"].asInt());
abst.setSmpteTimeCodeOffset(0);
abst.setMovieIdentifier(streamName);
abst.setSegmentRunTable(asrt, 0);
abst.setFragmentRunTable(afrt, 0);
#if DEBUG >= 8
std::cout << "Sending bootstrap:" << std::endl << abst.toPrettyString(0) << std::endl;
#endif
return std::string((char*)abst.asBox(), (int)abst.boxedSize());
}
///\brief Builds a bootstrap for use in HTTP Dynamic streaming.
///\param tid The track this bootstrap is generated for.
///\return The generated bootstrap.
std::string OutHDS::dynamicBootstrap(int tid){
updateMeta();
std::string empty;
MP4::ASRT asrt;
asrt.setUpdate(false);
asrt.setVersion(1);
//asrt.setQualityEntry(empty, 0);
if (myMeta.live){
asrt.setSegmentRun(1, 4294967295ul, 0);
}else{
asrt.setSegmentRun(1, myMeta.tracks[tid].fragments.size(), 0);
}
MP4::AFRT afrt;
afrt.setUpdate(false);
afrt.setVersion(1);
afrt.setTimeScale(1000);
//afrt.setQualityEntry(empty, 0);
MP4::afrt_runtable afrtrun;
int i = 0;
int j = 0;
if (myMeta.tracks[tid].fragments.size()){
std::deque<DTSC::Fragment>::iterator fragIt = myMeta.tracks[tid].fragments.begin();
unsigned int firstTime = myMeta.tracks[tid].getKey(fragIt->getNumber()).getTime();
while (fragIt != myMeta.tracks[tid].fragments.end()){
if (myMeta.vod || fragIt->getDuration() > 0){
afrtrun.firstFragment = myMeta.tracks[tid].missedFrags + j + 1;
afrtrun.firstTimestamp = myMeta.tracks[tid].getKey(fragIt->getNumber()).getTime() - firstTime;
if (fragIt->getDuration() > 0){
afrtrun.duration = fragIt->getDuration();
}else{
afrtrun.duration = myMeta.tracks[tid].lastms - afrtrun.firstTimestamp;
}
afrt.setFragmentRun(afrtrun, i);
++i;
}
++j;
++fragIt;
}
}
MP4::ABST abst;
abst.setVersion(1);
abst.setBootstrapinfoVersion(1);
abst.setProfile(0);
abst.setUpdate(false);
abst.setTimeScale(1000);
abst.setLive(myMeta.live);
abst.setCurrentMediaTime(myMeta.tracks[tid].lastms);
abst.setSmpteTimeCodeOffset(0);
abst.setMovieIdentifier(streamName);
abst.setSegmentRunTable(asrt, 0);
abst.setFragmentRunTable(afrt, 0);
DEBUG_MSG(DLVL_VERYHIGH, "Sending bootstrap: %s", abst.toPrettyString(0).c_str());
return std::string((char*)abst.asBox(), (int)abst.boxedSize());
}