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/* ***** BEGIN LICENSE BLOCK *****
* Version: RCSL 1.0/RPSL 1.0
*
* Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
*
* The contents of this file, and the files included with this file, are
* subject to the current version of the RealNetworks Public Source License
* Version 1.0 (the "RPSL") available at
* http://www.helixcommunity.org/content/rpsl unless you have licensed
* the file under the RealNetworks Community Source License Version 1.0
* (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
* in which case the RCSL will apply. You may also obtain the license terms
* directly from RealNetworks. You may not use this file except in
* compliance with the RPSL or, if you have a valid RCSL with RealNetworks
* applicable to this file, the RCSL. Please see the applicable RPSL or
* RCSL for the rights, obligations and limitations governing use of the
* contents of the file.
*
* This file is part of the Helix DNA Technology. RealNetworks is the
* developer of the Original Code and owns the copyrights in the portions
* it created.
*
* This file, and the files included with this file, is distributed and made
* available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
*
* Technology Compatibility Kit Test Suite(s) Location:
* http://www.helixcommunity.org/content/tck
*
* Contributor(s):
*
* ***** END LICENSE BLOCK ***** */
#ifndef _MPADECOBJFIXPT_H_
#define _MPADECOBJFIXPT_H_
#include "mp3dec.h" /* public C API for new MP3 decoder */
class CMpaDecObj
{
public:
CMpaDecObj();
~CMpaDecObj();
///////////////////////////////////////////////////////////////////////////
// Function: Init_n
// Purpose: Initialize the mp3 decoder.
// Parameters: pSync a pointer to a syncword
// ulSize the size of the buffer pSync points to
// bUseSize this tells the decoder to use the input frame
// size on the decode instead of calculating
// the frame size. This is necessary when
// our formatted mp3 data (main_data_begin always
// equal to 0).
//
// Returns: returns 1 on success, 0 on failure
///////////////////////////////////////////////////////////////////////////
int Init_n(unsigned char *pSync,
unsigned long ulSize,
unsigned char bUseSize=0);
///////////////////////////////////////////////////////////////////////////
// Function: DecodeFrame_v
// Purpose: Decodes one mp3 frame
// Parameters: pSource pointer to an mp3 frame (at a syncword)
// pulSize size of the buffer pSource points to. It will
// contain the number of mp3 bytes decoded upon
// return.
// pPCM pointer to a buffer to decode into
// pulPCMSize size of the PCM buffer. It will contain the
// number of PCM bytes prodced upon return.
///////////////////////////////////////////////////////////////////////////
void DecodeFrame_v(unsigned char *pSource,
unsigned long *pulSize,
unsigned char *pPCM,
unsigned long *pulPCMSize);
// overloaded new version that returns error code in errCode
void DecodeFrame_v(unsigned char *pSource,
unsigned long *pulSize,
unsigned char *pPCM,
unsigned long *pulPCMSize,
int *errCode);
void GetPCMInfo_v(unsigned long &ulSampRate,
int &nChannels,
int &nBitsPerSample);
// return number of samples per frame, PER CHANNEL (renderer multiplies this result by nChannels)
int GetSamplesPerFrame_n();
void SetTrustPackets(unsigned char bTrust) { m_bTrustPackets = bTrust; }
private:
void * m_pDec; // generic void ptr
void * m_pDecL1; // not implemented (could use old Xing mpadecl1.cpp)
void * m_pDecL2; // not implemented (could use old Xing mpadecl2.cpp)
HMP3Decoder m_pDecL3;
MP3FrameInfo m_lastMP3FrameInfo;
unsigned char m_bUseFrameSize;
unsigned char m_bTrustPackets;
};
#endif /* _MPADECOBJFIXPT_H_ */
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