PortAudioPlayerDeviceDriver.h

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/*
 * SPDX-FileCopyrightText: 2006-2021 Istituto Italiano di Tecnologia (IIT)
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */
 
#ifndef PortAudioPlayerDeviceDriverh
#define PortAudioPlayerDeviceDriverh
 
#include <yarp/os/ManagedBytes.h>
#include <yarp/os/Thread.h>
 
#include <yarp/dev/DeviceDriver.h>
#include <yarp/dev/AudioPlayerDeviceBase.h>
#include <yarp/dev/CircularAudioBuffer.h>
#include <portaudio.h>
#include <mutex>
 
class PortAudioPlayerDeviceDriver :
        public yarp::dev::AudioPlayerDeviceBase,
        public yarp::dev::DeviceDriver,
        public yarp::os::Thread
{
private:
    PaStreamParameters  m_outputParameters;
    PaStream*           m_stream;
    PaError             m_err;
 
public:
    PortAudioPlayerDeviceDriver();
    PortAudioPlayerDeviceDriver(const PortAudioPlayerDeviceDriver&) = delete;
    PortAudioPlayerDeviceDriver(PortAudioPlayerDeviceDriver&&) = delete;
    PortAudioPlayerDeviceDriver& operator=(const PortAudioPlayerDeviceDriver&) = delete;
    PortAudioPlayerDeviceDriver& operator=(PortAudioPlayerDeviceDriver&&) = delete;
    ~PortAudioPlayerDeviceDriver() override;
 
private:
    bool abortSound();
    bool configureDeviceAndStart() override;
 
public: //DeviceDriver
    bool open(yarp::os::Searchable& config) override;
    bool close() override;
 
public: //AudioRecorderDeviceBase(IAudioGrabberSound)
    void waitUntilPlaybackStreamIsComplete() override;
    bool setHWGain(double gain) override;
    bool interruptDeviceAndClose() override;
    bool startPlayback() override;
    bool stopPlayback() override;
 
public: //Thread
    void threadRelease() override;
    bool threadInit() override;
    void run() override;
 
protected:
    void*   m_system_resource;
 
    int  m_device_id;
    int  m_driver_frame_size;
    void handleError();
};
 
#endif