| /* | 
 |  *  Copyright 2016 The WebRTC project authors. All Rights Reserved. | 
 |  * | 
 |  *  Use of this source code is governed by a BSD-style license | 
 |  *  that can be found in the LICENSE file in the root of the source | 
 |  *  tree. An additional intellectual property rights grant can be found | 
 |  *  in the file PATENTS.  All contributing project authors may | 
 |  *  be found in the AUTHORS file in the root of the source tree. | 
 |  */ | 
 |  | 
 | #include "pc/video_track_source.h" | 
 |  | 
 | #include "rtc_base/checks.h" | 
 |  | 
 | namespace webrtc { | 
 |  | 
 | VideoTrackSource::VideoTrackSource( | 
 |     bool remote) | 
 |     : state_(kInitializing), remote_(remote) { | 
 |   worker_thread_checker_.DetachFromThread(); | 
 | } | 
 |  | 
 | void VideoTrackSource::SetState(SourceState new_state) { | 
 |   if (state_ != new_state) { | 
 |     state_ = new_state; | 
 |     FireOnChanged(); | 
 |   } | 
 | } | 
 |  | 
 | void VideoTrackSource::AddOrUpdateSink( | 
 |     rtc::VideoSinkInterface<VideoFrame>* sink, | 
 |     const rtc::VideoSinkWants& wants) { | 
 |   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread()); | 
 |   source()->AddOrUpdateSink(sink, wants); | 
 | } | 
 |  | 
 | void VideoTrackSource::RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) { | 
 |   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread()); | 
 |   source()->RemoveSink(sink); | 
 | } | 
 |  | 
 | }  //  namespace webrtc |