void TrackUnionStream::EndTrack(uint32_t aIndex) {
StreamTracks::Track* outputTrack =
mTracks.FindTrack(mTrackMap[aIndex].mOutputTrackID);
if (!outputTrack || outputTrack->IsEnded()) return;
STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p ending track %d", this,
outputTrack->GetID()));
outputTrack->SetEnded();
}
void TrackUnionStream::EndTrack(uint32_t aIndex)
{
StreamTracks::Track* outputTrack = mTracks.FindTrack(mTrackMap[aIndex].mOutputTrackID);
if (!outputTrack || outputTrack->IsEnded())
return;
STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p ending track %d", this, outputTrack->GetID()));
for (uint32_t j = 0; j < mListeners.Length(); ++j) {
MediaStreamListener* l = mListeners[j];
StreamTime offset = outputTrack->GetSegment()->GetDuration();
nsAutoPtr<MediaSegment> segment;
segment = outputTrack->GetSegment()->CreateEmptyClone();
l->NotifyQueuedTrackChanges(Graph(), outputTrack->GetID(), offset,
TrackEventCommand::TRACK_EVENT_ENDED,
*segment,
mTrackMap[aIndex].mInputPort->GetSource(),
mTrackMap[aIndex].mInputTrackID);
}
for (TrackBound<MediaStreamTrackListener>& b : mTrackListeners) {
if (b.mTrackID == outputTrack->GetID()) {
b.mListener->NotifyEnded();
}
}
outputTrack->SetEnded();
}
void TrackUnionStream::CopyTrackData(StreamTracks::Track* aInputTrack,
uint32_t aMapIndex, GraphTime aFrom, GraphTime aTo,
bool* aOutputTrackFinished)
{
TrackMapEntry* map = &mTrackMap[aMapIndex];
StreamTracks::Track* outputTrack = mTracks.FindTrack(map->mOutputTrackID);
MOZ_ASSERT(outputTrack && !outputTrack->IsEnded(), "Can't copy to ended track");
MediaSegment* segment = map->mSegment;
MediaStream* source = map->mInputPort->GetSource();
GraphTime next;
*aOutputTrackFinished = false;
for (GraphTime t = aFrom; t < aTo; t = next) {
MediaInputPort::InputInterval interval = map->mInputPort->GetNextInputInterval(t);
interval.mEnd = std::min(interval.mEnd, aTo);
StreamTime inputEnd = source->GraphTimeToStreamTimeWithBlocking(interval.mEnd);
StreamTime inputTrackEndPoint = STREAM_TIME_MAX;
if (aInputTrack->IsEnded() &&
aInputTrack->GetEnd() <= inputEnd) {
inputTrackEndPoint = aInputTrack->GetEnd();
*aOutputTrackFinished = true;
}
if (interval.mStart >= interval.mEnd) {
break;
}
StreamTime ticks = interval.mEnd - interval.mStart;
next = interval.mEnd;
StreamTime outputStart = outputTrack->GetEnd();
if (interval.mInputIsBlocked) {
// Maybe the input track ended?
segment->AppendNullData(ticks);
STREAM_LOG(LogLevel::Verbose, ("TrackUnionStream %p appending %lld ticks of null data to track %d",
this, (long long)ticks, outputTrack->GetID()));
} else if (InMutedCycle()) {
segment->AppendNullData(ticks);
} else {
if (source->IsSuspended()) {
segment->AppendNullData(aTo - aFrom);
} else {
MOZ_ASSERT(outputTrack->GetEnd() == GraphTimeToStreamTimeWithBlocking(interval.mStart),
"Samples missing");
StreamTime inputStart = source->GraphTimeToStreamTimeWithBlocking(interval.mStart);
segment->AppendSlice(*aInputTrack->GetSegment(),
std::min(inputTrackEndPoint, inputStart),
std::min(inputTrackEndPoint, inputEnd));
}
}
ApplyTrackDisabling(outputTrack->GetID(), segment);
for (uint32_t j = 0; j < mListeners.Length(); ++j) {
MediaStreamListener* l = mListeners[j];
// Separate Audio and Video.
if (segment->GetType() == MediaSegment::AUDIO) {
l->NotifyQueuedAudioData(Graph(), outputTrack->GetID(),
outputStart,
*static_cast<AudioSegment*>(segment),
map->mInputPort->GetSource(),
map->mInputTrackID);
}
}
for (TrackBound<MediaStreamTrackListener>& b : mTrackListeners) {
if (b.mTrackID != outputTrack->GetID()) {
continue;
}
b.mListener->NotifyQueuedChanges(Graph(), outputStart, *segment);
}
outputTrack->GetSegment()->AppendFrom(segment);
}
}
uint32_t TrackUnionStream::AddTrack(MediaInputPort* aPort, StreamTracks::Track* aTrack,
GraphTime aFrom)
{
STREAM_LOG(LogLevel::Verbose, ("TrackUnionStream %p adding track %d for "
"input stream %p track %d, desired id %d",
this, aTrack->GetID(), aPort->GetSource(),
aTrack->GetID(),
aPort->GetDestinationTrackId()));
TrackID id;
if (IsTrackIDExplicit(id = aPort->GetDestinationTrackId())) {
MOZ_ASSERT(id >= mNextAvailableTrackID &&
mUsedTracks.BinaryIndexOf(id) == mUsedTracks.NoIndex,
"Desired destination id taken. Only provide a destination ID "
"if you can assure its availability, or we may not be able "
"to bind to the correct DOM-side track.");
#ifdef DEBUG
for (size_t i = 0; mInputs[i] != aPort; ++i) {
MOZ_ASSERT(mInputs[i]->GetSourceTrackId() != TRACK_ANY,
"You are adding a MediaInputPort with a track mapping "
"while there already exist generic MediaInputPorts for this "
"destination stream. This can lead to TrackID collisions!");
}
#endif
mUsedTracks.InsertElementSorted(id);
} else if ((id = aTrack->GetID()) &&
id > mNextAvailableTrackID &&
mUsedTracks.BinaryIndexOf(id) == mUsedTracks.NoIndex) {
// Input id available. Mark it used in mUsedTracks.
mUsedTracks.InsertElementSorted(id);
} else {
// No desired destination id and Input id taken, allocate a new one.
id = mNextAvailableTrackID;
// Update mNextAvailableTrackID and prune any mUsedTracks members it now
// covers.
while (1) {
if (!mUsedTracks.RemoveElementSorted(++mNextAvailableTrackID)) {
// Not in use. We're done.
break;
}
}
}
// Round up the track start time so the track, if anything, starts a
// little later than the true time. This means we'll have enough
// samples in our input stream to go just beyond the destination time.
StreamTime outputStart = GraphTimeToStreamTimeWithBlocking(aFrom);
nsAutoPtr<MediaSegment> segment;
segment = aTrack->GetSegment()->CreateEmptyClone();
for (uint32_t j = 0; j < mListeners.Length(); ++j) {
MediaStreamListener* l = mListeners[j];
l->NotifyQueuedTrackChanges(Graph(), id, outputStart,
TrackEventCommand::TRACK_EVENT_CREATED,
*segment,
aPort->GetSource(), aTrack->GetID());
}
segment->AppendNullData(outputStart);
StreamTracks::Track* track =
&mTracks.AddTrack(id, outputStart, segment.forget());
STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p added track %d for input stream %p track %d, start ticks %lld",
this, track->GetID(), aPort->GetSource(), aTrack->GetID(),
(long long)outputStart));
TrackMapEntry* map = mTrackMap.AppendElement();
map->mEndOfConsumedInputTicks = 0;
map->mEndOfLastInputIntervalInInputStream = -1;
map->mEndOfLastInputIntervalInOutputStream = -1;
map->mInputPort = aPort;
map->mInputTrackID = aTrack->GetID();
map->mOutputTrackID = track->GetID();
map->mSegment = aTrack->GetSegment()->CreateEmptyClone();
for (int32_t i = mPendingDirectTrackListeners.Length() - 1; i >= 0; --i) {
TrackBound<DirectMediaStreamTrackListener>& bound =
mPendingDirectTrackListeners[i];
if (bound.mTrackID != map->mOutputTrackID) {
continue;
}
MediaStream* source = map->mInputPort->GetSource();
map->mOwnedDirectListeners.AppendElement(bound.mListener);
DisabledTrackMode currentMode = GetDisabledTrackMode(bound.mTrackID);
if (currentMode != DisabledTrackMode::ENABLED) {
bound.mListener->IncreaseDisabled(currentMode);
}
STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p adding direct listener "
"%p for track %d. Forwarding to input "
"stream %p track %d.",
this, bound.mListener.get(), bound.mTrackID,
source, map->mInputTrackID));
source->AddDirectTrackListenerImpl(bound.mListener.forget(),
map->mInputTrackID);
mPendingDirectTrackListeners.RemoveElementAt(i);
}
return mTrackMap.Length() - 1;
}
void TrackUnionStream::CopyTrackData(StreamTracks::Track* aInputTrack,
uint32_t aMapIndex, GraphTime aFrom,
GraphTime aTo,
bool* aOutputTrackFinished) {
TrackMapEntry* map = &mTrackMap[aMapIndex];
TRACE_AUDIO_CALLBACK_COMMENT(
"Input stream %p track %i -> TrackUnionStream %p track %i",
map->mInputPort->GetSource(), map->mInputTrackID, this,
map->mOutputTrackID);
StreamTracks::Track* outputTrack = mTracks.FindTrack(map->mOutputTrackID);
MOZ_ASSERT(outputTrack && !outputTrack->IsEnded(),
"Can't copy to ended track");
MediaSegment* segment = map->mSegment;
MediaStream* source = map->mInputPort->GetSource();
GraphTime next;
*aOutputTrackFinished = false;
for (GraphTime t = aFrom; t < aTo; t = next) {
MediaInputPort::InputInterval interval =
map->mInputPort->GetNextInputInterval(t);
interval.mEnd = std::min(interval.mEnd, aTo);
StreamTime inputEnd =
source->GraphTimeToStreamTimeWithBlocking(interval.mEnd);
if (aInputTrack->IsEnded() && aInputTrack->GetEnd() <= inputEnd) {
*aOutputTrackFinished = true;
break;
}
if (interval.mStart >= interval.mEnd) {
break;
}
StreamTime ticks = interval.mEnd - interval.mStart;
next = interval.mEnd;
StreamTime outputStart = outputTrack->GetEnd();
if (interval.mInputIsBlocked) {
segment->AppendNullData(ticks);
STREAM_LOG(
LogLevel::Verbose,
("TrackUnionStream %p appending %lld ticks of null data to track %d",
this, (long long)ticks, outputTrack->GetID()));
} else if (InMutedCycle()) {
segment->AppendNullData(ticks);
} else {
if (source->IsSuspended()) {
segment->AppendNullData(aTo - aFrom);
} else {
MOZ_ASSERT(outputTrack->GetEnd() ==
GraphTimeToStreamTimeWithBlocking(interval.mStart),
"Samples missing");
StreamTime inputStart =
source->GraphTimeToStreamTimeWithBlocking(interval.mStart);
segment->AppendSlice(*aInputTrack->GetSegment(), inputStart, inputEnd);
}
}
ApplyTrackDisabling(outputTrack->GetID(), segment);
for (TrackBound<MediaStreamTrackListener>& b : mTrackListeners) {
if (b.mTrackID != outputTrack->GetID()) {
continue;
}
b.mListener->NotifyQueuedChanges(Graph(), outputStart, *segment);
}
outputTrack->GetSegment()->AppendFrom(segment);
}
}