1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "content/renderer/media/media_stream_video_track.h" 6 7 #include "content/renderer/media/webrtc/webrtc_video_sink_adapter.h" 8 9 namespace content { 10 11 // Wrapper which allows to use std::find_if() when adding and removing 12 // sinks to/from |sinks_|. 13 struct SinkWrapper { 14 explicit SinkWrapper(MediaStreamVideoSink* sink) : sink_(sink) {} 15 bool operator()( 16 const WebRtcVideoSinkAdapter* owner) { 17 return owner->sink() == sink_; 18 } 19 MediaStreamVideoSink* sink_; 20 }; 21 22 MediaStreamVideoTrack::MediaStreamVideoTrack(webrtc::VideoTrackInterface* track, 23 bool is_local_track) 24 : MediaStreamTrackExtraData(track, is_local_track), 25 video_track_(track) { 26 } 27 28 MediaStreamVideoTrack::~MediaStreamVideoTrack() { 29 DCHECK(sinks_.empty()); 30 } 31 32 void MediaStreamVideoTrack::AddSink(MediaStreamVideoSink* sink) { 33 DCHECK(thread_checker_.CalledOnValidThread()); 34 DCHECK(std::find_if(sinks_.begin(), sinks_.end(), 35 SinkWrapper(sink)) == sinks_.end()); 36 sinks_.push_back(new WebRtcVideoSinkAdapter(video_track_, sink)); 37 } 38 39 void MediaStreamVideoTrack::RemoveSink(MediaStreamVideoSink* sink) { 40 DCHECK(thread_checker_.CalledOnValidThread()); 41 ScopedVector<WebRtcVideoSinkAdapter>::iterator it = 42 std::find_if(sinks_.begin(), sinks_.end(), SinkWrapper(sink)); 43 DCHECK(it != sinks_.end()); 44 sinks_.erase(it); 45 } 46 47 } // namespace content 48
