tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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VideoStreamTrack.cpp (2515B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
      4 * You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 #include "VideoStreamTrack.h"
      7 
      8 #include "MediaTrackGraph.h"
      9 #include "MediaTrackListener.h"
     10 #include "VideoOutput.h"
     11 #include "nsContentUtils.h"
     12 #include "nsGlobalWindowInner.h"
     13 
     14 namespace mozilla::dom {
     15 
     16 VideoStreamTrack::VideoStreamTrack(nsPIDOMWindowInner* aWindow,
     17                                   mozilla::MediaTrack* aInputTrack,
     18                                   MediaStreamTrackSource* aSource,
     19                                   MediaStreamTrackState aReadyState,
     20                                   bool aMuted,
     21                                   const MediaTrackConstraints& aConstraints)
     22    : MediaStreamTrack(aWindow, aInputTrack, aSource, aReadyState, aMuted,
     23                       aConstraints) {}
     24 
     25 void VideoStreamTrack::Destroy() {
     26  mVideoOutputs.Clear();
     27  MediaStreamTrack::Destroy();
     28 }
     29 
     30 void VideoStreamTrack::AddVideoOutput(VideoFrameContainer* aSink) {
     31  if (Ended()) {
     32    return;
     33  }
     34  auto output = MakeRefPtr<VideoOutput>(aSink, AbstractThread::MainThread());
     35  AddVideoOutput(output);
     36 }
     37 
     38 void VideoStreamTrack::AddVideoOutput(VideoOutput* aOutput) {
     39  if (Ended()) {
     40    return;
     41  }
     42  for (const auto& output : mVideoOutputs) {
     43    if (output == aOutput) {
     44      MOZ_ASSERT_UNREACHABLE("A VideoOutput was already added");
     45      return;
     46    }
     47  }
     48  mVideoOutputs.AppendElement(aOutput);
     49  AddDirectListener(aOutput);
     50  AddListener(aOutput);
     51 }
     52 
     53 void VideoStreamTrack::RemoveVideoOutput(VideoFrameContainer* aSink) {
     54  for (const auto& output : mVideoOutputs.Clone()) {
     55    if (output->mVideoFrameContainer == aSink) {
     56      mVideoOutputs.RemoveElement(output);
     57      RemoveDirectListener(output);
     58      RemoveListener(output);
     59    }
     60  }
     61 }
     62 
     63 void VideoStreamTrack::RemoveVideoOutput(VideoOutput* aOutput) {
     64  for (const auto& output : mVideoOutputs.Clone()) {
     65    if (output == aOutput) {
     66      mVideoOutputs.RemoveElement(aOutput);
     67      RemoveDirectListener(aOutput);
     68      RemoveListener(aOutput);
     69    }
     70  }
     71 }
     72 
     73 void VideoStreamTrack::GetLabel(nsAString& aLabel, CallerType aCallerType) {
     74  MediaStreamTrack::GetLabel(aLabel, aCallerType);
     75 }
     76 
     77 already_AddRefed<MediaStreamTrack> VideoStreamTrack::Clone() {
     78  return MediaStreamTrack::CloneInternal<VideoStreamTrack>();
     79 }
     80 
     81 }  // namespace mozilla::dom