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75 lines
3.0 KiB
C
75 lines
3.0 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Source last modified: $Id: bitstream.h,v 1.1 2005/02/26 01:47:34 jrecker Exp $
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*
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* Portions Copyright (c) 1995-2005 RealNetworks, Inc. All Rights Reserved.
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*
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* The contents of this file, and the files included with this file,
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* are subject to the current version of the RealNetworks Public
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* Source License (the "RPSL") available at
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* http://www.helixcommunity.org/content/rpsl unless you have licensed
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* the file under the current version of the RealNetworks Community
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* Source License (the "RCSL") available at
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* http://www.helixcommunity.org/content/rcsl, in which case the RCSL
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* will apply. You may also obtain the license terms directly from
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* RealNetworks. You may not use this file except in compliance with
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* the RPSL or, if you have a valid RCSL with RealNetworks applicable
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* to this file, the RCSL. Please see the applicable RPSL or RCSL for
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* the rights, obligations and limitations governing use of the
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* contents of the file.
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*
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* This file is part of the Helix DNA Technology. RealNetworks is the
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* developer of the Original Code and owns the copyrights in the
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* portions it created.
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*
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* This file, and the files included with this file, is distributed
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* and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
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* KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
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* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
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* ENJOYMENT OR NON-INFRINGEMENT.
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*
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* Technology Compatibility Kit Test Suite(s) Location:
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* http://www.helixcommunity.org/content/tck
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** */
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/**************************************************************************************
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* Fixed-point HE-AAC decoder
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* Jon Recker (jrecker@real.com)
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* February 2005
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*
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* bitstream.h - definitions of bitstream handling functions
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**************************************************************************************/
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#ifndef _BITSTREAM_H
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#define _BITSTREAM_H
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#include "aaccommon.h"
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/* additional external symbols to name-mangle for static linking */
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#define SetBitstreamPointer STATNAME(SetBitstreamPointer)
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#define GetBits STATNAME(GetBits)
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#define GetBitsNoAdvance STATNAME(GetBitsNoAdvance)
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#define AdvanceBitstream STATNAME(AdvanceBitstream)
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#define CalcBitsUsed STATNAME(CalcBitsUsed)
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#define ByteAlignBitstream STATNAME(ByteAlignBitstream)
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typedef struct _BitStreamInfo {
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unsigned char *bytePtr;
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unsigned int iCache;
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int cachedBits;
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int nBytes;
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} BitStreamInfo;
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/* bitstream.c */
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void SetBitstreamPointer(BitStreamInfo *bsi, int nBytes, unsigned char *buf);
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unsigned int GetBits(BitStreamInfo *bsi, int nBits);
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unsigned int GetBitsNoAdvance(BitStreamInfo *bsi, int nBits);
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void AdvanceBitstream(BitStreamInfo *bsi, int nBits);
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int CalcBitsUsed(BitStreamInfo *bsi, unsigned char *startBuf, int startOffset);
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void ByteAlignBitstream(BitStreamInfo *bsi);
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#endif /* _BITSTREAM_H */
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