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/*
* g7231_fake.h
*
* Fake G.723.1 codec for T38FAX Pseudo Modem
*
* Copyright (c) 2001-2002 Equivalence Pty Ltd
*
* Open H323 Project
*
* 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 H323 Library.
*
* The Initial Developer of the Original Code is Equivalence Pty Ltd
*
* Contributor(s):
*
* $Log: g7231_fake.h,v $
* Revision 1.3 2003/12/18 13:16:52 vfrolov
* Fixed all CPU usage
*
* Revision 1.2 2002/07/23 01:15:24 craigs
* Added Capability clone function
*
* Revision 1.1 2002/04/30 04:17:54 craigs
* Initial version
*
*/
// mostly "stolen" from OpenAM
#ifndef _PM_G7231_FAKE_H
#define _PM_G7231_FAKE_H
#include <h323.h>
#include <h245.h>
#include <ptclib/delaychan.h>
class G7231_Fake_Codec : public H323AudioCodec
{
PCLASSINFO(G7231_Fake_Codec, H323AudioCodec);
public:
G7231_Fake_Codec(Direction dir);
unsigned GetBandwidth() const;
static int GetFrameLen(int val);
BOOL Read(BYTE * buffer, unsigned & length, RTP_DataFrame &);
BOOL Write(const BYTE * buffer, unsigned length, const RTP_DataFrame & rtp, unsigned & frames);
protected:
PAdaptiveDelay delayRead;
PAdaptiveDelay delayWrite;
};
class G7231_Fake_Capability : public H323AudioCapability
{
PCLASSINFO(G7231_Fake_Capability, H323AudioCapability)
public:
G7231_Fake_Capability();
PObject * Clone();
unsigned GetSubType() const { return H245_AudioCapability::e_g7231; }
PString GetFormatName() const { return "G.723.1"; }
H323Codec * CreateCodec(H323Codec::Direction direction) const;
BOOL OnSendingPDU(H245_AudioCapability & cap, unsigned packetSize) const;
BOOL OnReceivedPDU(const H245_AudioCapability & pdu, unsigned & packetSize);
PObject * Clone() const;
};
#endif
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