fakeMicrophone.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 <yarp/dev/DeviceDriver.h>
#include <yarp/os/PeriodicThread.h>
#include <yarp/dev/IGenericSensor.h>
#include <yarp/dev/AudioRecorderDeviceBase.h>
#include <yarp/sig/Sound.h>
#include <yarp/sig/SoundFile.h>
 
#include <string>
#include <mutex>
 
#define DEFAULT_PERIOD 0.01   //s
 
class fakeMicrophone :
        public yarp::dev::DeviceDriver,
        public yarp::dev::AudioRecorderDeviceBase,
        public yarp::os::PeriodicThread
{
public:
    fakeMicrophone();
    fakeMicrophone(const fakeMicrophone&) = delete;
    fakeMicrophone(fakeMicrophone&&) = delete;
    fakeMicrophone& operator=(const fakeMicrophone&) = delete;
    fakeMicrophone& operator=(fakeMicrophone&&) = delete;
    ~fakeMicrophone() override;
 
public: // DeviceDriver
    bool open(yarp::os::Searchable &config) override;
    bool close() override;
 
private:
   //thread
    bool threadInit() override;
    void run() override;
 
private:
    std::vector<size_t> m_counter;
    std::vector<size_t> m_max_count;
    size_t m_wave_amplitude = 32000;
    double m_sig_freq=440; //Hz
 
    enum waveform_t
    {
        sine = 0,
        sawtooth = 1,
        square = 2,
        constant = 3
    } m_waveform = sine;
};