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// Copyright 2013 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_AGGREGATE_DEVICE_MANAGER_H_
#define MEDIA_AUDIO_MAC_AGGREGATE_DEVICE_MANAGER_H_
#include <CoreAudio/CoreAudio.h>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "media/base/media_export.h"
namespace media {
class MEDIA_EXPORT AggregateDeviceManager {
public:
AggregateDeviceManager();
~AggregateDeviceManager();
// Lazily creates an aggregate device based on the default
// input and output devices.
// It will either return a valid device or kAudioDeviceUnknown
// if the default devices are not suitable for aggregate devices.
AudioDeviceID GetDefaultAggregateDevice();
private:
// The caller is responsible for releasing the CFStringRef.
static CFStringRef GetDeviceUID(AudioDeviceID id);
static void GetDeviceName(AudioDeviceID id, char* name, UInt32 size);
static UInt32 GetClockDomain(AudioDeviceID device_id);
static OSStatus GetPluginID(AudioObjectID* id);
CFMutableDictionaryRef CreateAggregateDeviceDictionary(
AudioDeviceID input_id,
AudioDeviceID output_id);
CFMutableArrayRef CreateSubDeviceArray(CFStringRef input_device_UID,
CFStringRef output_device_UID);
OSStatus CreateAggregateDevice(AudioDeviceID input_id,
AudioDeviceID output_id,
AudioDeviceID* aggregate_device);
void DestroyAggregateDevice();
AudioObjectID plugin_id_;
AudioDeviceID input_device_;
AudioDeviceID output_device_;
AudioDeviceID aggregate_device_;
DISALLOW_COPY_AND_ASSIGN(AggregateDeviceManager);
};
} // namespace media
#endif // MEDIA_AUDIO_MAC_AGGREGATE_DEVICE_MANAGER_H_
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