diff options
Diffstat (limited to '')
| -rw-r--r-- | circuitpython/lib/mp3/src/mpadecobjfixpt.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/circuitpython/lib/mp3/src/mpadecobjfixpt.h b/circuitpython/lib/mp3/src/mpadecobjfixpt.h new file mode 100644 index 0000000..a8a5c40 --- /dev/null +++ b/circuitpython/lib/mp3/src/mpadecobjfixpt.h @@ -0,0 +1,108 @@ +/* ***** 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_ */ |