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/*
* g711codec.h
*
* Open Phone Abstraction Library (OPAL)
* Formally known as the Open H323 project.
*
* Copyright (c) 2001 Equivalence Pty. Ltd.
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Open Phone Abstraction Library.
*
* The Initial Developer of the Original Code is Equivalence Pty. Ltd.
*
* Contributor(s): ______________________________________.
*
* $Revision: 21988 $
* $Author: rjongbloed $
* $Date: 2009-02-04 00:28:03 -0600 (Wed, 04 Feb 2009) $
*/
#ifndef OPAL_CODEC_G711CODEC_H
#define OPAL_CODEC_G711CODEC_H
#ifdef P_USE_PRAGMA
#pragma interface
#endif
#include <opal/buildopts.h>
#include <opal/transcoders.h>
#include <codec/g711a1_plc.h>
///////////////////////////////////////////////////////////////////////////////
class Opal_G711_PCM : public OpalStreamedTranscoder {
public:
Opal_G711_PCM(const OpalMediaFormat & inputMediaFormat);
#if OPAL_G711PLC
virtual PBoolean Convert(
const RTP_DataFrame & input, ///< Input data
RTP_DataFrame & output ///< Output data
);
protected:
OpalG711_PLC plc;
PINDEX lastPayloadSize;
#endif
};
///////////////////////////////////////////////////////////////////////////////
class Opal_G711_uLaw_PCM : public Opal_G711_PCM {
public:
Opal_G711_uLaw_PCM();
virtual int ConvertOne(int sample) const;
static int ConvertSample(int sample);
};
///////////////////////////////////////////////////////////////////////////////
class Opal_PCM_G711_uLaw : public OpalStreamedTranscoder {
public:
Opal_PCM_G711_uLaw();
virtual int ConvertOne(int sample) const;
static int ConvertSample(int sample);
};
///////////////////////////////////////////////////////////////////////////////
class Opal_G711_ALaw_PCM : public Opal_G711_PCM {
public:
Opal_G711_ALaw_PCM();
virtual int ConvertOne(int sample) const;
static int ConvertSample(int sample);
};
///////////////////////////////////////////////////////////////////////////////
class Opal_PCM_G711_ALaw : public OpalStreamedTranscoder {
public:
Opal_PCM_G711_ALaw();
virtual int ConvertOne(int sample) const;
static int ConvertSample(int sample);
};
///////////////////////////////////////////////////////////////////////////////
#define OPAL_REGISTER_G711() \
OPAL_REGISTER_TRANSCODER(Opal_G711_uLaw_PCM, OpalG711_ULAW_64K, OpalPCM16); \
OPAL_REGISTER_TRANSCODER(Opal_PCM_G711_uLaw, OpalPCM16, OpalG711_ULAW_64K); \
OPAL_REGISTER_TRANSCODER(Opal_G711_ALaw_PCM, OpalG711_ALAW_64K, OpalPCM16); \
OPAL_REGISTER_TRANSCODER(Opal_PCM_G711_ALaw, OpalPCM16, OpalG711_ALAW_64K)
#endif // OPAL_CODEC_G711CODEC_H
/////////////////////////////////////////////////////////////////////////////
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