Source code

Revision control

Other Tools

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "MediaStreamWindowCapturer.h"
#include "AudioStreamTrack.h"
#include "DOMMediaStream.h"
#include "MediaTrackGraph.h"
namespace mozilla {
using dom::AudioStreamTrack;
using dom::MediaStreamTrack;
MediaStreamWindowCapturer::CapturedTrack::CapturedTrack(
MediaStreamTrack* aTrack, uint64_t aWindowID)
: mTrack(aTrack),
mPort(aTrack->Graph()->ConnectToCaptureTrack(aWindowID,
aTrack->GetTrack())) {}
MediaStreamWindowCapturer::CapturedTrack::~CapturedTrack() {
if (mPort) {
mPort->Destroy();
}
}
MediaStreamWindowCapturer::MediaStreamWindowCapturer(DOMMediaStream* aStream,
uint64_t aWindowId)
: mStream(aStream), mWindowId(aWindowId) {
mStream->RegisterTrackListener(this);
nsTArray<RefPtr<AudioStreamTrack>> tracks;
mStream->GetAudioTracks(tracks);
for (const auto& t : tracks) {
if (t->Ended()) {
continue;
}
AddTrack(t);
}
}
MediaStreamWindowCapturer::~MediaStreamWindowCapturer() {
if (mStream) {
mStream->UnregisterTrackListener(this);
}
}
void MediaStreamWindowCapturer::NotifyTrackAdded(
const RefPtr<MediaStreamTrack>& aTrack) {
if (AudioStreamTrack* at = aTrack->AsAudioStreamTrack()) {
AddTrack(at);
}
}
void MediaStreamWindowCapturer::NotifyTrackRemoved(
const RefPtr<MediaStreamTrack>& aTrack) {
if (AudioStreamTrack* at = aTrack->AsAudioStreamTrack()) {
RemoveTrack(at);
}
}
void MediaStreamWindowCapturer::AddTrack(AudioStreamTrack* aTrack) {
if (aTrack->Ended()) {
return;
}
mTracks.AppendElement(MakeUnique<CapturedTrack>(aTrack, mWindowId));
}
void MediaStreamWindowCapturer::RemoveTrack(AudioStreamTrack* aTrack) {
for (size_t i = mTracks.Length(); i > 0; --i) {
if (mTracks[i - 1]->mTrack == aTrack) {
mTracks.RemoveElementAt(i - 1);
break;
}
}
}
} // namespace mozilla