Adding audio support to the new webmediaplyer

media/base/rtc_audio_renderer.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_BASE_RTC_AUDIO_RENDERER_H_
+#define MEDIA_BASE_RTC_AUDIO_RENDERER_H_
+
+#include "base/memory/ref_counted.h"
+#include "media/base/media_export.h"
+
+namespace media {
+
+class MEDIA_EXPORT RtcAudioRenderer
+    : public base::RefCountedThreadSafe<RtcAudioRenderer> {
+ public:
+  // Start audio decoding and rendering at the current playback rate.
+  virtual void Play() = 0;
+
+  // Temporarily suspend decoding and rendering audio.
+  virtual void Pause() = 0;
+
+  // Stop all operations in preparation for being deleted.
+  virtual void Stop() = 0;
+
+  // Sets the output volume.
+  virtual void SetVolume(float volume) = 0;
+
+ protected:
+  friend class base::RefCountedThreadSafe<RtcAudioRenderer>;
+
+  RtcAudioRenderer();
+  virtual ~RtcAudioRenderer();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(RtcAudioRenderer);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_AUDIO_RENDERER_H_