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diff --git a/audio_codec/libraac/bitstream.h b/audio_codec/libraac/bitstream.h new file mode 100644 index 0000000..30c957f --- a/dev/null +++ b/audio_codec/libraac/bitstream.h @@ -0,0 +1,76 @@ +/* ***** BEGIN LICENSE BLOCK ***** + * Source last modified: $Id: bitstream.h,v 1.1 2005/02/26 01:47:34 jrecker Exp $ + * + * Portions Copyright (c) 1995-2005 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 (the "RPSL") available at + * http://www.helixcommunity.org/content/rpsl unless you have licensed + * the file under the current version of the RealNetworks Community + * Source License (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 ***** */ + +/************************************************************************************** + * Fixed-point HE-AAC decoder + * Jon Recker (jrecker@real.com) + * February 2005 + * + * bitstream.h - definitions of bitstream handling functions + **************************************************************************************/ + +#ifndef _BITSTREAM_H +#define _BITSTREAM_H + +#include "aaccommon.h" + +/* additional external symbols to name-mangle for static linking */ +#define SetBitstreamPointer STATNAME(SetBitstreamPointer) +#define GetBits STATNAME(GetBits) +#define GetBitsNoAdvance STATNAME(GetBitsNoAdvance) +#define AdvanceBitstream STATNAME(AdvanceBitstream) +#define CalcBitsUsed STATNAME(CalcBitsUsed) +#define ByteAlignBitstream STATNAME(ByteAlignBitstream) + +typedef struct _BitStreamInfo { + unsigned char *bytePtr; + unsigned int iCache; + int cachedBits; + int nBytes; +} BitStreamInfo; + +/* bitstream.c */ +void SetBitstreamPointer(BitStreamInfo *bsi, int nBytes, unsigned char *buf); + +void InitBitStream(); +unsigned int GetBits(BitStreamInfo *bsi, int nBits); +unsigned int GetBitsNoAdvance(BitStreamInfo *bsi, int nBits); +void AdvanceBitstream(BitStreamInfo *bsi, int nBits); +int CalcBitsUsed(BitStreamInfo *bsi, unsigned char *startBuf, int startOffset); +void ByteAlignBitstream(BitStreamInfo *bsi); + +#endif /* _BITSTREAM_H */ |