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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
#pragma once
#ifdef WASAPI_PLUGIN
#define AUD_BUILD_PLUGIN
#endif
/**
* @file WASAPIDevice.h
* @ingroup plugin
* The WASAPIDevice class.
*/
#include "devices/SoftwareDevice.h"
#include <thread>
#include <windows.h>
#include <audioclient.h>
#include <mmdeviceapi.h>
#include <mmreg.h>
AUD_NAMESPACE_BEGIN
/**
* This device plays back through WASAPI, the Windows audio API.
*/
class AUD_PLUGIN_API WASAPIDevice : public SoftwareDevice
{
private:
/**
* Whether there is currently playback.
*/
bool m_playing;
/**
* Whether the current playback should stop.
*/
bool m_stop;
IMMDeviceEnumerator* m_imm_device_enumerator;
IMMDevice* m_imm_device;
IAudioClient* m_audio_client;
WAVEFORMATEXTENSIBLE m_wave_format_extensible;
/**
* The streaming thread.
*/
std::thread m_thread;
/**
* Starts the streaming thread.
*/
AUD_LOCAL void start();
/**
* Streaming thread main function.
*/
AUD_LOCAL void updateStream();
// delete copy constructor and operator=
WASAPIDevice(const WASAPIDevice&) = delete;
WASAPIDevice& operator=(const WASAPIDevice&) = delete;
protected:
virtual void playing(bool playing);
public:
/**
* Opens the WASAPI audio device for playback.
* \param specs The wanted audio specification.
* \param buffersize The size of the internal buffer.
* \note The specification really used for opening the device may differ.
* \exception Exception Thrown if the audio device cannot be opened.
*/
WASAPIDevice(DeviceSpecs specs, int buffersize = AUD_DEFAULT_BUFFER_SIZE);
/**
* Closes the WASAPI audio device.
*/
virtual ~WASAPIDevice();
/**
* Registers this plugin.
*/
static void registerPlugin();
};
AUD_NAMESPACE_END
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