audio_buffers_state.h revision 5821806d5e7f356e8fa4b058a389a808ea183019
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