/usr/include/svxlink/AsyncAudioDecoder.h is in libasyncaudio-dev 14.08.1-2.
This file is owned by root:root, with mode 0o644.
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@file AsyncAudioDecoder.h
@brief Base class of an audio decoder
@author Tobias Blomberg / SM0SVX
@date 2008-10-06
\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_DECODER_INCLUDED
#define ASYNC_AUDIO_DECODER_INCLUDED
/****************************************************************************
*
* System Includes
*
****************************************************************************/
#include <string>
#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 Base class for an audio decoder
@author Tobias Blomberg / SM0SVX
@date 2008-10-06
This is the base class for an audio decoder.
*/
class AudioDecoder : public AudioSource, public sigc::trackable
{
public:
static AudioDecoder *create(const std::string &name);
/**
* @brief Default constuctor
*/
AudioDecoder(void) {}
/**
* @brief Destructor
*/
virtual ~AudioDecoder(void) {}
/**
* @brief Get the name of the codec
* @returns Return the name of the codec
*/
virtual const char *name(void) const = 0;
/**
* @brief Set an option for the decoder
* @param name The name of the option
* @param value The value of the option
*/
virtual void setOption(const std::string &name, const std::string &value) {}
/**
* @brief Print codec parameter settings
*/
virtual void printCodecParams(void) const {}
/**
* @brief Write encoded samples into the decoder
* @param buf Buffer containing encoded samples
* @param size The size of the buffer
*/
virtual void writeEncodedSamples(void *buf, int size) = 0;
/**
* @brief Call this function when all encoded samples have been received
*/
virtual void flushEncodedSamples(void) { sinkFlushSamples(); }
/**
* @brief Resume audio output to the sink
*
* This function will be called when the registered audio sink is ready to
* accept more samples.
* This function is normally only called from a connected sink object.
*/
virtual void resumeOutput(void) {}
/**
* @brief This signal is emitted when all encoded samples have been flushed
*/
sigc::signal<void> allEncodedSamplesFlushed;
protected:
/**
* @brief The registered sink has flushed all samples
*
* This function will be called when all samples have been flushed in the
* registered sink.
* This function is normally only called from a connected sink object.
*/
virtual void allSamplesFlushed(void) { allEncodedSamplesFlushed(); }
private:
AudioDecoder(const AudioDecoder&);
AudioDecoder& operator=(const AudioDecoder&);
}; /* class AudioDecoder */
} /* namespace */
#endif /* ASYNC_AUDIO_DECODER_INCLUDED */
/*
* This file has not been truncated
*/
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