bool MediaStream::removeTrack(PassRefPtr<MediaStreamTrack> prpTrack)
{
// This is a common part used by removeTrack called by JavaScript
// and removeRemoteTrack and only removeRemoteTrack must fire removetrack event
RefPtr<MediaStreamTrack> track = prpTrack;
Vector<RefPtr<MediaStreamTrack>>* tracks = trackVectorForType(track->source()->type());
size_t pos = tracks->find(track);
if (pos == notFound)
return false;
tracks->remove(pos);
m_private->removeTrack(&track->privateTrack());
// There can be other tracks using the same source in the same MediaStream,
// like when MediaStreamTrack::clone() is called, for instance.
// Spec says that a source can be shared, so we must assure that there is no
// other track using it.
if (!haveTrackWithSource(track->source()))
m_private->removeSource(track->source());
track->removeObserver(this);
if (!m_audioTracks.size() && !m_videoTracks.size())
setActive(false);
return true;
}
bool MediaStream::addTrack(PassRefPtr<MediaStreamTrack> prpTrack)
{
// This is a common part used by addTrack called by JavaScript
// and addRemoteTrack and only addRemoteTrack must fire addtrack event
RefPtr<MediaStreamTrack> track = prpTrack;
if (getTrackById(track->id()))
return false;
Vector<RefPtr<MediaStreamTrack>>* tracks = trackVectorForType(track->source()->type());
tracks->append(track);
track->addObserver(this);
m_private->addTrack(&track->privateTrack());
setActive(true);
return true;
}
void MediaStream::removeRemoteSource(RealtimeMediaSource* source)
{
ASSERT(source);
if (!active())
return;
Vector<RefPtr<MediaStreamTrack>>* tracks = trackVectorForType(source->type());
for (int i = tracks->size() - 1; i >= 0; --i) {
if ((*tracks)[i]->source() != source)
continue;
RefPtr<MediaStreamTrack> track = (*tracks)[i];
track->removeObserver(this);
tracks->remove(i);
m_private->removeTrack(&track->privateTrack());
scheduleDispatchEvent(MediaStreamTrackEvent::create(eventNames().removetrackEvent, false, false, track.release()));
}
m_private->removeSource(source);
}
MediaStreamTrackVector MediaStream::getVideoTracks() const
{
return trackVectorForType(RealtimeMediaSource::Video);
}
