fakeSpeaker.h

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/*
 * Copyright (C) 2006-2020 Istituto Italiano di Tecnologia (IIT)
 * All rights reserved.
 *
 * This software may be modified and distributed under the terms of the
 * BSD-3-Clause license. See the accompanying LICENSE file for details.
 */
 
#include <string>
#include <yarp/dev/DeviceDriver.h>
#include <yarp/os/PeriodicThread.h>
#include <yarp/dev/IGenericSensor.h>
#include <yarp/dev/AudioGrabberInterfaces.h>
#include <yarp/dev/CircularAudioBuffer.h>
#include <yarp/sig/Sound.h>
#include <yarp/sig/SoundFile.h>
 
 
#define DEFAULT_PERIOD 0.01   //s
 
class fakeSpeaker :
        public yarp::dev::DeviceDriver,
        public yarp::dev::IAudioRender,
        public yarp::os::PeriodicThread
{
public:
    fakeSpeaker();
    fakeSpeaker(const fakeSpeaker&) = delete;
    fakeSpeaker(fakeSpeaker&&) = delete;
    fakeSpeaker& operator=(const fakeSpeaker&) = delete;
    fakeSpeaker& operator=(fakeSpeaker&&) = delete;
 
    ~fakeSpeaker() override;
 
    // Device Driver interface
    bool open(yarp::os::Searchable &config) override;
    bool close() override;
 
    virtual bool startPlayback() override;
    virtual bool stopPlayback() override;
    virtual bool renderSound(const yarp::sig::Sound& sound)  override;
    virtual bool getPlaybackAudioBufferMaxSize(yarp::dev::AudioBufferSize& size)  override;
    virtual bool getPlaybackAudioBufferCurrentSize(yarp::dev::AudioBufferSize& size)  override;
    virtual bool resetPlaybackAudioBuffer() override;
 
private:
    bool threadInit() override;
    void run() override;
 
    bool m_isPlaying = false;
 
    size_t m_cfg_numSamples = 0;
    size_t m_cfg_numChannels = 0;
    size_t m_cfg_frequency = 0;
    size_t m_cfg_bytesPerSample = 0;
 
    yarp::dev::CircularAudioBuffer_16t* m_outputBuffer = nullptr;
    bool m_renderSoundImmediate = false;
};