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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#ifndef SV_AUDIO_RECORD_TARGET_H
#define SV_AUDIO_RECORD_TARGET_H
#include "BaseTypes.h"
namespace sv {
/**
* The record target API used by the view manager. See also AudioPlaySource.
*/
class AudioRecordTarget
{
public:
virtual ~AudioRecordTarget() { }
/**
* Return whether recording is currently happening.
*/
virtual bool isRecording() const = 0;
/**
* Return the approximate duration of the audio recording so far.
*/
virtual sv_frame_t getRecordDuration() const = 0;
/**
* Return the current (or thereabouts) input levels in the range
* 0.0 -> 1.0, for metering purposes. Only valid while recording.
* The values returned are peak values since the last call to this
* function was made (i.e. calling this function also resets them).
*/
virtual bool getInputLevels(float &left, float &right) = 0;
};
} // end namespace sv
#endif
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