content/renderer/media/media_stream_track.h

   1 // Copyright 2014 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 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_TRACK_H_
   6 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_TRACK_H_
   7
   8 #include "base/callback.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/memory/ref_counted.h"
  11 #include "base/threading/thread_checker.h"
  12 #include "content/common/content_export.h"
  13 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
  14
  15 namespace webrtc {
  16 class AudioTrackInterface;
  17 }  // namespace webrtc
  18
  19 namespace content {
  20
  21 // MediaStreamTrack is a Chrome representation of blink::WebMediaStreamTrack.
  22 // It is owned by blink::WebMediaStreamTrack as
  23 // blink::WebMediaStreamTrack::ExtraData.
  24 class CONTENT_EXPORT MediaStreamTrack
  25     : NON_EXPORTED_BASE(public blink::WebMediaStreamTrack::ExtraData) {
  26  public:
  27   explicit MediaStreamTrack(bool is_local_track);
  28   virtual ~MediaStreamTrack();
  29
  30   static MediaStreamTrack* GetTrack(const blink::WebMediaStreamTrack& track);
  31
  32   virtual void SetEnabled(bool enabled) = 0;
  33
  34   virtual void Stop() = 0;
  35
  36   // TODO(tommi, xians): Remove this method.
  37   virtual webrtc::AudioTrackInterface* GetAudioAdapter();
  38
  39   bool is_local_track() const { return is_local_track_; }
  40
  41  protected:
  42   const bool is_local_track_;
  43
  44   // Used to DCHECK that we are called on Render main Thread.
  45   base::ThreadChecker main_render_thread_checker_;
  46
  47   DISALLOW_COPY_AND_ASSIGN(MediaStreamTrack);
  48 };
  49
  50 }  // namespace content
  51
  52 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_TRACK_H_