/usr/include/svxlink/AsyncAudioReader.h is in libasyncaudio-dev 14.08.1-2.
This file is owned by root:root, with mode 0o644.
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@file AsyncAudioReader.h
@brief An audio pipe component for on-demand reading samples
@author Tobias Blomberg / SM0SVX
@date 2008-02-22
\verbatim
Async - A library for programming event driven applications
Copyright (C) 2003-2008 Tobias Blomberg / SM0SVX
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.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
\endverbatim
*/
#ifndef ASYNC_AUDIO_READER_INCLUDED
#define ASYNC_AUDIO_READER_INCLUDED
/****************************************************************************
*
* System Includes
*
****************************************************************************/
/****************************************************************************
*
* Project Includes
*
****************************************************************************/
#include <AsyncAudioSink.h>
/****************************************************************************
*
* Local Includes
*
****************************************************************************/
/****************************************************************************
*
* Forward declarations
*
****************************************************************************/
/****************************************************************************
*
* Namespace
*
****************************************************************************/
namespace Async
{
/****************************************************************************
*
* Forward declarations of classes inside of the declared namespace
*
****************************************************************************/
/****************************************************************************
*
* Defines & typedefs
*
****************************************************************************/
/****************************************************************************
*
* Exported Global Variables
*
****************************************************************************/
/****************************************************************************
*
* Class definitions
*
****************************************************************************/
/**
@brief An audio pipe component for on demand reading samples
@author Tobias Blomberg / SM0SVX
@date 2008-02-22
This audio pipe component is used when reading samples on demand is preferred
rather than getting them pushed at you.
*/
class AudioReader : public AudioSink
{
public:
/**
* @brief Default constuctor
*/
AudioReader(void);
/**
* @brief Destructor
*/
~AudioReader(void);
/**
* @brief Read at most the specified number of samples
* @param samples A buffer to put the read samples into
* @param count The maximum number of samples to read. This value must
* not be larger than the size of the "samples" buffer
* given in the first argument.
* @return Returns the number of samples actually read
*/
int readSamples(float *samples, int count);
/**
* @brief Write samples into this audio sink
* @param samples The buffer containing the samples
* @param count The number of samples in the buffer
* @return Returns the number of samples that has been taken care of
*
* This function is used to write audio into this audio sink. If it
* returns 0, no more samples should be written until the resumeOutput
* function in the source have been called.
* This function is normally only called from a connected source object.
*/
virtual int writeSamples(const float *samples, int count);
/**
* @brief Tell the sink to flush the previously written samples
*
* This function is used to tell the sink to flush previously written
* samples. When done flushing, the sourceAllSamplesFlushed function
* will be called.
* This function is normally only called from a connected source object.
*/
virtual void flushSamples(void);
protected:
private:
AudioReader(const AudioReader&);
AudioReader& operator=(const AudioReader&);
float *buf;
int buf_size;
bool input_stopped;
int samples_in_buf;
}; /* class AudioReader */
} /* namespace */
#endif /* ASYNC_AUDIO_READER_INCLUDED */
/*
* This file has not been truncated
*/
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