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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): ______________________________________.
*
* $Log: g711codec.h,v $
* Revision 2.5 2005/08/28 07:59:17 rjongbloed
* Converted OpalTranscoder to use factory, requiring sme changes in making sure
* OpalMediaFormat instances are initialised before use.
*
* Revision 2.4 2002/09/16 02:52:33 robertj
* Added #define so can select if #pragma interface/implementation is used on
* platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan.
*
* Revision 2.3 2002/09/04 06:01:46 robertj
* Updated to OpenH323 v1.9.6
*
* Revision 2.2 2002/03/15 03:07:25 robertj
* Added static access to internal conversion functions.
*
* Revision 2.1 2001/08/01 05:03:26 robertj
* Changes to allow control of linking software transcoders, use macros
* to force linking.
*
*/
#ifndef __OPAL_G711CODEC_H
#define __OPAL_G711CODEC_H
#ifdef P_USE_PRAGMA
#pragma interface
#endif
#include <opal/transcoders.h>
///////////////////////////////////////////////////////////////////////////////
class Opal_G711_uLaw_PCM : public OpalStreamedTranscoder {
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 OpalStreamedTranscoder {
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_G711CODEC_H
/////////////////////////////////////////////////////////////////////////////
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