95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
//=========================================================================
|
|
// Name: WASAPIAudioDevice.h
|
|
// Purpose: Defines the interface to a Windows audio device.
|
|
//
|
|
// Authors: Mooneer Salem
|
|
// License:
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License version 2.1,
|
|
// as published by the Free Software Foundation. This program is
|
|
// distributed in the hope that it will be useful, but WITHOUT ANY
|
|
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
|
// License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
//
|
|
//=========================================================================
|
|
|
|
#ifndef WASAPI_AUDIO_DEVICE_H
|
|
#define WASAPI_AUDIO_DEVICE_H
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
#include <functional>
|
|
#include <chrono>
|
|
#include <thread>
|
|
#include <initguid.h>
|
|
#include <mmdeviceapi.h>
|
|
#include <audioclient.h>
|
|
#include "IAudioEngine.h"
|
|
#include "IAudioDevice.h"
|
|
#include "../util/Win32COMObject.h"
|
|
|
|
class WASAPIAudioDevice : public Win32COMObject, public IAudioDevice
|
|
{
|
|
public:
|
|
virtual ~WASAPIAudioDevice();
|
|
|
|
virtual int getNumChannels() override;
|
|
virtual int getSampleRate() const override;
|
|
|
|
virtual void start() override;
|
|
virtual void stop() override;
|
|
|
|
virtual bool isRunning() override;
|
|
|
|
virtual int getLatencyInMicroseconds() override;
|
|
|
|
// Configures current thread for real-time priority. This should be
|
|
// called from the thread that will be operating on received audio.
|
|
virtual void setHelperRealTime() override;
|
|
|
|
// Lets audio system know that we're beginning to do work with the
|
|
// received audio.
|
|
virtual void startRealTimeWork() override;
|
|
|
|
// Lets audio system know that we're done with the work on the received
|
|
// audio.
|
|
virtual void stopRealTimeWork() override;
|
|
|
|
// Reverts real-time priority for current thread.
|
|
virtual void clearHelperRealTime() override;
|
|
|
|
protected:
|
|
friend class WASAPIAudioEngine;
|
|
|
|
WASAPIAudioDevice(IAudioClient* client, IAudioEngine::AudioDirection direction, int sampleRate, int numChannels);
|
|
|
|
private:
|
|
IAudioClient* client_;
|
|
IAudioRenderClient* renderClient_;
|
|
IAudioCaptureClient* captureClient_;
|
|
IAudioEngine::AudioDirection direction_;
|
|
int sampleRate_;
|
|
int numChannels_;
|
|
UINT32 bufferFrameCount_;
|
|
bool initialized_;
|
|
int latencyFrames_;
|
|
std::thread renderCaptureThread_;
|
|
HANDLE renderCaptureEvent_;
|
|
bool isRenderCaptureRunning_;
|
|
HANDLE semaphore_;
|
|
|
|
void renderAudio_();
|
|
void captureAudio_();
|
|
|
|
static thread_local HANDLE HelperTask_;
|
|
};
|
|
|
|
#endif // WASAPI_AUDIO_DEVICE_H
|