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57 lines (42 loc) · 1.48 KB
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/*
Copyright (c) 2016 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _AUDIO_IN_H_INCLUDED
#define _AUDIO_IN_H_INCLUDED
#include <stddef.h>
class AudioOut;
class AudioAnalyzer;
class AudioIn
{
public:
AudioIn();
virtual ~AudioIn();
virtual long sampleRate() = 0; // Returns the sample rate
virtual int bitsPerSample() = 0; // returns the bits per sample
virtual int channels() = 0; // Returns the number of channels
protected:
void samplesRead(void* buffer, size_t size);
protected:
friend class AudioOut;
virtual int begin() = 0;
virtual int read(void* buffer, size_t size) = 0;
virtual int reset() = 0;
virtual void end() = 0;
protected:
friend class AudioAnalyzer;
int setAnalyzer(AudioAnalyzer* analyzer);
private:
AudioAnalyzer* _analyzer;
};
#endif