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// Copyright (c) 2010 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_AUDIO_MAC_AUDIO_MANAGER_MAC_H_
#define MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_
#include "base/basictypes.h"
#include "media/audio/audio_manager_base.h"
class PCMQueueOutAudioOutputStream;
// Mac OS X implementation of the AudioManager singleton. This class is internal
// to the audio output and only internal users can call methods not exposed by
// the AudioManager class.
class AudioManagerMac : public AudioManagerBase {
public:
AudioManagerMac() {};
// Implementation of AudioManager.
virtual bool HasAudioOutputDevices();
virtual bool HasAudioInputDevices();
virtual AudioOutputStream* MakeAudioOutputStream(Format format, int channels,
int sample_rate,
char bits_per_sample);
virtual AudioInputStream* MakeAudioInputStream(Format format, int channels,
int sample_rate,
char bits_per_sample,
uint32 samples_per_packet);
virtual void MuteAll();
virtual void UnMuteAll();
// Mac-only method to free a stream created in MakeAudioStream.
// It is called internally by the audio stream when it has been closed.
void ReleaseOutputStream(PCMQueueOutAudioOutputStream* stream);
private:
friend void DestroyAudioManagerMac(void*);
virtual ~AudioManagerMac() {};
DISALLOW_COPY_AND_ASSIGN(AudioManagerMac);
};
#endif // MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_
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