109 lines
4.6 KiB
C++
109 lines
4.6 KiB
C++
/* ***** 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_ */
|