void
DecodedStream::InitTracks()
{
AssertOwnerThread();
if (mData->mStreamInitialized) {
return;
}
SourceMediaStream* sourceStream = mData->mStream;
if (mInfo.HasAudio()) {
TrackID audioTrackId = mInfo.mAudio.mTrackId;
AudioSegment* audio = new AudioSegment();
sourceStream->AddAudioTrack(audioTrackId, mInfo.mAudio.mRate, 0, audio,
SourceMediaStream::ADDTRACK_QUEUED);
mData->mNextAudioTime = mStartTime.ref();
}
if (mInfo.HasVideo()) {
TrackID videoTrackId = mInfo.mVideo.mTrackId;
VideoSegment* video = new VideoSegment();
sourceStream->AddTrack(videoTrackId, 0, video,
SourceMediaStream::ADDTRACK_QUEUED);
mData->mNextVideoTime = mStartTime.ref();
}
sourceStream->FinishAddTracks();
mData->mStreamInitialized = true;
}
void
DOMHwMediaStream::Init(MediaStream* stream)
{
SourceMediaStream* srcStream = stream->AsSourceStream();
if (srcStream) {
VideoSegment segment;
#ifdef MOZ_WIDGET_GONK
const StreamTime delta = STREAM_TIME_MAX; // Because MediaStreamGraph will run out frames in non-autoplay mode,
// we must give it bigger frame length to cover this situation.
mImageData.mOverlayId = DEFAULT_IMAGE_ID;
mImageData.mSize.width = DEFAULT_IMAGE_WIDTH;
mImageData.mSize.height = DEFAULT_IMAGE_HEIGHT;
mOverlayImage->SetData(mImageData);
RefPtr<Image> image = static_cast<Image*>(mOverlayImage.get());
mozilla::gfx::IntSize size = image->GetSize();
segment.AppendFrame(image.forget(), delta, size);
#endif
srcStream->AddTrack(TRACK_VIDEO_PRIMARY, 0, new VideoSegment());
srcStream->AppendToTrack(TRACK_VIDEO_PRIMARY, &segment);
srcStream->FinishAddTracks();
srcStream->AdvanceKnownTracksTime(STREAM_TIME_MAX);
}
}
void
RemoteSourceStreamInfo::StartReceiving()
{
if (mReceiving || mPipelines.empty()) {
return;
}
mReceiving = true;
SourceMediaStream* source = GetMediaStream()->GetInputStream()->AsSourceStream();
source->FinishAddTracks();
source->SetPullEnabled(true);
// AdvanceKnownTracksTicksTime(HEAT_DEATH_OF_UNIVERSE) means that in
// theory per the API, we can't add more tracks before that
// time. However, the impl actually allows it, and it avoids a whole
// bunch of locking that would be required (and potential blocking)
// if we used smaller values and updated them on each NotifyPull.
source->AdvanceKnownTracksTime(STREAM_TIME_MAX);
CSFLogDebug(logTag, "Finished adding tracks to MediaStream %p", source);
}