SoundRecorder.hpp

//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//

#ifndef SFML_SOUNDRECORDER_HPP
#define SFML_SOUNDRECORDER_HPP

// Headers
#include <SFML/Audio/Export.hpp>
#include <SFML/Audio/AlResource.hpp>
#include <SFML/System/Thread.hpp>
#include <SFML/System/Time.hpp>
#include <vector>
#include <string>


namespace sf
{
class SFML_AUDIO_API SoundRecorder : AlResource
{
public:

    virtual ~SoundRecorder();

    bool start(unsigned int sampleRate = 44100);

    void stop();

    unsigned int getSampleRate() const;

    static std::vector<std::string> getAvailableDevices();

    static std::string getDefaultDevice();

    bool setDevice(const std::string& name);

    const std::string& getDevice() const;

    void setChannelCount(unsigned int channelCount);

    unsigned int getChannelCount() const;

    static bool isAvailable();

protected:

    SoundRecorder();

    void setProcessingInterval(Time interval);

    virtual bool onStart();

    virtual bool onProcessSamples(const Int16* samples, std::size_t sampleCount) = 0;

    virtual void onStop();

private:

    void record();

    void processCapturedSamples();

    void cleanup();

    // Member data
    Thread             m_thread;             
    std::vector<Int16> m_samples;            
    unsigned int       m_sampleRate;         
    Time               m_processingInterval; 
    bool               m_isCapturing;        
    std::string        m_deviceName;         
    unsigned int       m_channelCount;       
};

} // namespace sf


#endif // SFML_SOUNDRECORDER_HPP