/usr/include/svxlink/AsyncSigCAudioSource.h is in libasyncaudio-dev 14.08.1-2.
This file is owned by root:root, with mode 0o644.
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@file AsyncSigCAudioSource.h
@brief Contains an adapter class to connect to an AudioSink using SigC
@author Tobias Blomberg / SM0SVX
@date 2005-04-17
\verbatim
Async - A library for programming event driven applications
Copyright (C) 2003-2013 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_SIGC_AUDIO_SOURCE_INCLUDED
#define ASYNC_SIGC_AUDIO_SOURCE_INCLUDED
/****************************************************************************
*
* System Includes
*
****************************************************************************/
#include <sigc++/sigc++.h>
/****************************************************************************
*
* Project Includes
*
****************************************************************************/
#include <AsyncAudioSource.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 adapter class to connect to an AudioSink class using SigC
@author Tobias Blomberg
@date 2005-04-17
This is an adapter class that can be used to interact with an AudioSink
class using SigC signals and slots.
*/
class SigCAudioSource : public AudioSource, public sigc::trackable
{
public:
/**
* @brief Default constuctor
*/
SigCAudioSource(void) {}
/**
* @brief Destructor
*/
~SigCAudioSource(void) {}
/**
* @brief Resume audio output to the sink
*
* This function will be called when the registered audio sink is ready
* to accept more samples. It will then emit the sigResumeOutput signal.
*/
virtual void resumeOutput(void)
{
sigResumeOutput();
}
/**
* @brief The registered sink has flushed all samples
*
* This function will be called when all samples have been flushed in the
* registered sink. It will then emit the sigAllSamplesFlushed signal.
*/
virtual void allSamplesFlushed(void)
{
sigAllSamplesFlushed();
}
/**
* @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 object. If it
* returns 0, no more samples should be written until the sigResumeOutput
* signal have been emitted.
*/
int writeSamples(float *samples, int len)
{
return sinkWriteSamples(samples, len);
}
/**
* @brief Tell the sink to flush the previously written samples
*
* This function is used to tell this object to flush previously written
* samples. When done flushing, the sigAllSamplesFlushed signal will be
* emitted.
*/
void flushSamples(void)
{
sinkFlushSamples();
}
/**
* @brief A signal that is emitted when more samples can be written
*
* This signal will be emitted when the registered audio sink is ready
* to accept more samples.
*/
sigc::signal<void> sigResumeOutput;
/**
* @brief Signal that is emitted when the connected sink is done flushing
*
* This signal will be emitted when all samples have been flushed in the
* registered sink.
*/
sigc::signal<void> sigAllSamplesFlushed;
}; /* class SigCAudioSource */
} /* namespace */
#endif /* ASYNC_SIGC_AUDIO_SOURCE_INCLUDED */
/*
* This file has not been truncated
*/
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