blob: 1efda809242d0e028c37f6fbe0a3b442f58f5d99 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// 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 WEBKIT_MEDIA_MEDIA_STREAM_AUDIO_RENDERER_H_
#define WEBKIT_MEDIA_MEDIA_STREAM_AUDIO_RENDERER_H_
#include "base/memory/ref_counted.h"
#include "base/time.h"
namespace webkit_media {
class MediaStreamAudioRenderer
: public base::RefCountedThreadSafe<MediaStreamAudioRenderer> {
public:
// Starts rendering audio.
virtual void Start() = 0;
// Stops rendering audio.
virtual void Stop() = 0;
// Resumes rendering audio after being paused.
virtual void Play() = 0;
// Temporarily suspends rendering audio. The audio stream might still be
// active but new audio data is not provided to the consumer.
virtual void Pause() = 0;
// Sets the output volume.
virtual void SetVolume(float volume) = 0;
// Time stamp that reflects the current render time. Should not be updated
// when paused.
virtual base::TimeDelta GetCurrentRenderTime() const = 0;
// Returns true if the implementation is a local renderer and false
// otherwise.
virtual bool IsLocalRenderer() const = 0;
protected:
friend class base::RefCountedThreadSafe<MediaStreamAudioRenderer>;
MediaStreamAudioRenderer();
virtual ~MediaStreamAudioRenderer();
private:
DISALLOW_COPY_AND_ASSIGN(MediaStreamAudioRenderer);
};
} // namespace webkit_media
#endif // WEBKIT_MEDIA_MEDIA_STREAM_AUDIO_RENDERER_H_
|
