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
10namespace media {
11
12// AudioBuffersState struct stores current state of audio buffers.
13// It is used for audio synchronization.
14struct MEDIA_EXPORT AudioBuffersState {
15  AudioBuffersState();
16  AudioBuffersState(int pending_bytes, int hardware_delay_bytes);
17
18  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