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1 // Copyright (c) 2012 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 MEDIA_AUDIO_AUDIO_BUFFERS_STATE_H_
6 #define MEDIA_AUDIO_AUDIO_BUFFERS_STATE_H_
7 
8 #include "media/base/media_export.h"
9 
10 namespace media {
11 
12 // AudioBuffersState struct stores current state of audio buffers.
13 // It is used for audio synchronization.
14 struct MEDIA_EXPORT AudioBuffersState {
15   AudioBuffersState();
16   AudioBuffersState(int pending_bytes, int hardware_delay_bytes);
17 
total_bytesAudioBuffersState18   int total_bytes() {
19     return pending_bytes + hardware_delay_bytes;
20   }
21 
22   // Number of bytes we currently have in our software buffer.
23   int pending_bytes;
24 
25   // Number of bytes that have been written to the device, but haven't
26   // been played yet.
27   int hardware_delay_bytes;
28 };
29 
30 }  // namespace media
31 
32 #endif  // MEDIA_AUDIO_AUDIO_BUFFERS_STATE_H_
33