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Fixes to CMAF output

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This commit is contained in:
Thulinma 2020-02-17 17:02:05 +01:00
parent e217f41f17
commit a8e04e1787
7 changed files with 69 additions and 84 deletions
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2
src/output/output.cpp
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@ -725,7 +725,7 @@ namespace Mist{
if (tmpPack){
HIGH_MSG("Sought to time %" PRIu64 " (yields a packet at %" PRIu64 "ms) in %s@%zu", tmp.time,
tmpPack.getTime(), streamName.c_str(), tid);
tmp.partIndex = M.getPartIndex(tmpPack, tmp.tid);
tmp.partIndex = M.getPartIndex(tmpPack.getTime(), tmp.tid);
buffer.insert(tmp);
return true;
}

43
src/output/output_cmaf.cpp
View file

@ -237,7 +237,7 @@ namespace Mist{
std::string headerData = CMAF::fragmentHeader(M, idx, fragmentIndex, false, false);
H.Chunkify(headerData.c_str(), headerData.size(), myConn);
uint64_t mdatSize = 8 + CMAF::payloadSize(M, idx, fragmentIndex);
uint64_t mdatSize = 8 + CMAF::payloadSize(M, idx, targetTime, M.getTimeForFragmentIndex(idx, fragmentIndex+1));
char mdatHeader[] ={0x00, 0x00, 0x00, 0x00, 'm', 'd', 'a', 't'};
Bit::htobl(mdatHeader, mdatSize);
@ -776,8 +776,7 @@ namespace Mist{
if (!isRecording()){return;}
if (!pushTracks.count(idx) || !pushTracks.at(idx).D.getSocket()){return;}
INFO_MSG("Disconnecting track %zu", idx);
pushTracks[idx].disconnect();
pushTracks[idx].disconnect();
pushTracks.erase(idx);
}
@ -803,11 +802,13 @@ namespace Mist{
/// Function that waits at most `maxWait` ms (in steps of 100ms) for the next keyframe to become available.
/// Uses thisIdx and thisPacket to determine track and current timestamp respectively.
bool OutCMAF::waitForNextKey(uint64_t maxWait){
size_t currentKey = M.getKeyIndexForTime(thisIdx, thisPacket.getTime());
DTSC::Keys keys(M.keys(thisIdx));
size_t currentKey = M.getKeyIndexForTime(getMainSelectedTrack(), thisPacket.getTime());
DTSC::Keys keys(M.keys(getMainSelectedTrack()));
size_t waitTimes = maxWait / 100;
for (size_t i = 0; i < waitTimes; ++i){
if (keys.getEndValid() > currentKey + 1){return true;}
if (keys.getEndValid() > currentKey + 1 && M.getLastms(thisIdx) > M.getTimeForKeyIndex(getMainSelectedTrack(), currentKey+1)){
return true;
}
Util::wait(100);
//Make sure we don't accidentally timeout while waiting - runs approximately every second.
if (i % 10 == 0){
@ -817,7 +818,7 @@ namespace Mist{
}
}
}
return (keys.getEndValid() > currentKey + 1);
return (keys.getEndValid() > currentKey + 1 && M.getLastms(thisIdx) > M.getTimeForKeyIndex(getMainSelectedTrack(), currentKey+1));
}
//Set up an empty connection to the target to make sure we can push data towards it.
@ -833,14 +834,15 @@ namespace Mist{
void OutCMAF::pushNext() {
//Set up a new connection if this is a new track, or if we have been disconnected.
if (!pushTracks.count(thisIdx) || !pushTracks.at(thisIdx).D.getSocket()){
if (pushTracks.count(thisIdx)){INFO_MSG("Reconnecting existing track: socket was disconnected");}
CMAFPushTrack & track = pushTracks[thisIdx];
size_t keyIndex = M.getKeyIndexForTime(thisIdx, thisPacket.getTime());
track.headerFrom = M.getTimeForKeyIndex(thisIdx, keyIndex);
size_t keyIndex = M.getKeyIndexForTime(getMainSelectedTrack(), thisPacket.getTime());
track.headerFrom = M.getTimeForKeyIndex(getMainSelectedTrack(), keyIndex);
if (track.headerFrom < thisPacket.getTime()){
track.headerFrom = M.getTimeForKeyIndex(thisIdx, keyIndex + 1);
track.headerFrom = M.getTimeForKeyIndex(getMainSelectedTrack(), keyIndex + 1);
}
HIGH_MSG("Starting track %zu at %" PRIu64 "ms into the stream, current packet at %" PRIu64 "ms", thisIdx, track.headerFrom, thisPacket.getTime());
INFO_MSG("Starting track %zu at %" PRIu64 "ms into the stream, current packet at %" PRIu64 "ms", thisIdx, track.headerFrom, thisPacket.getTime());
setupTrackObject(thisIdx);
track.headerUntil = 0;
@ -848,13 +850,13 @@ namespace Mist{
}
CMAFPushTrack & track = pushTracks[thisIdx];
if (thisPacket.getTime() < track.headerFrom){return;}
if (thisPacket.getTime() > track.headerUntil || !track.headerUntil){
size_t keyIndex = M.getKeyIndexForTime(thisIdx, thisPacket.getTime());
uint64_t keyTime = M.getTimeForKeyIndex(thisIdx, keyIndex);
if (keyTime != thisPacket.getTime()){
WARN_MSG("Corruption probably occured, initiating reconnect %" PRIu64 " != %" PRIu64, keyTime, thisPacket.getTime());
if (thisPacket.getTime() >= track.headerUntil){
size_t keyIndex = M.getKeyIndexForTime(getMainSelectedTrack(), thisPacket.getTime());
uint64_t keyTime = M.getTimeForKeyIndex(getMainSelectedTrack(), keyIndex);
if (keyTime > thisPacket.getTime()){
WARN_MSG("Corruption probably occurred, initiating reconnect %" PRIu64 " != %" PRIu64, keyTime, thisPacket.getTime());
onTrackEnd(thisIdx);
track.headerFrom = M.getTimeForKeyIndex(thisIdx, keyIndex + 1);
track.headerFrom = M.getTimeForKeyIndex(getMainSelectedTrack(), keyIndex + 1);
track.headerUntil = 0;
pushNext();
return;
@ -865,10 +867,9 @@ namespace Mist{
dropTrack(thisIdx, "No next keyframe available");
return;
}
track.headerUntil = M.getTimeForKeyIndex(thisIdx, keyIndex + 1) - 1;
std::string keyHeader = CMAF::keyHeader(M, thisIdx, keyIndex, true, true);
uint64_t mdatSize = 8 + CMAF::payloadSize(M, thisIdx, keyIndex, true);
track.headerUntil = M.getTimeForKeyIndex(getMainSelectedTrack(), keyIndex + 1);
std::string keyHeader = CMAF::keyHeader(M, thisIdx, track.headerFrom, track.headerUntil, keyIndex+1, true, true);
uint64_t mdatSize = 8 + CMAF::payloadSize(M, thisIdx, track.headerFrom, track.headerUntil);
char mdatHeader[] ={0x00, 0x00, 0x00, 0x00, 'm', 'd', 'a', 't'};
Bit::htobl(mdatHeader, mdatSize);