content/public/renderer/media_stream_sink.h

   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 #ifndef CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_SINK_H_
   6 #define CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_SINK_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "content/common/content_export.h"
  10 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
  11
  12 namespace content {
  13
  14 // MediaStreamSink is the base interface for MediaStreamAudioSink and
  15 // MediaStreamVideoSink. It allows an implementation to receive notifications
  16 // about state changes on a blink::WebMediaStreamSource object or such an
  17 // object underlying a blink::WebMediaStreamTrack.
  18 class CONTENT_EXPORT MediaStreamSink {
  19  public:
  20   virtual void OnReadyStateChanged(
  21       blink::WebMediaStreamSource::ReadyState state) {}
  22   virtual void OnEnabledChanged(bool enabled) {}
  23
  24  protected:
  25   virtual ~MediaStreamSink() {}
  26 };
  27
  28 }  // namespace content
  29
  30 #endif  // CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_SINK_H_