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Diffstat (limited to 'libSBRdec/src/sbr_crc.h')
-rw-r--r-- | libSBRdec/src/sbr_crc.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/libSBRdec/src/sbr_crc.h b/libSBRdec/src/sbr_crc.h new file mode 100644 index 0000000..281f30c --- /dev/null +++ b/libSBRdec/src/sbr_crc.h @@ -0,0 +1,65 @@ +/**************************************************************************** + + (C) Copyright Fraunhofer IIS (2004) + All Rights Reserved + + Please be advised that this software and/or program delivery is + Confidential Information of Fraunhofer and subject to and covered by the + + Fraunhofer IIS Software Evaluation Agreement + between Google Inc. and Fraunhofer + effective and in full force since March 1, 2012. + + You may use this software and/or program only under the terms and + conditions described in the above mentioned Fraunhofer IIS Software + Evaluation Agreement. Any other and/or further use requires a separate agreement. + + + This software and/or program is protected by copyright law and international + treaties. Any reproduction or distribution of this software and/or program, + or any portion of it, may result in severe civil and criminal penalties, and + will be prosecuted to the maximum extent possible under law. + + $Id$ + +*******************************************************************************/ +/*! + \file + \brief CRC checking routines $Revision: 36841 $ +*/ +#ifndef __SBR_CRC_H +#define __SBR_CRC_H + +#include "sbrdecoder.h" + +#include "FDK_bitstream.h" + +/* some useful crc polynoms: + +crc5: x^5+x^4+x^2+x^1+1 +crc6: x^6+x^5+x^3+x^2+x+1 +crc7: x^7+x^6+x^2+1 +crc8: x^8+x^2+x+x+1 +*/ + +/* default SBR CRC */ /* G(x) = x^10 + x^9 + x^5 + x^4 + x + 1 */ +#define SBR_CRC_POLY 0x0233 +#define SBR_CRC_MASK 0x0200 +#define SBR_CRC_START 0x0000 +#define SBR_CRC_RANGE 0x03FF + +typedef struct +{ + USHORT crcState; + USHORT crcMask; + USHORT crcPoly; +} +CRC_BUFFER; + +typedef CRC_BUFFER *HANDLE_CRC; + +int SbrCrcCheck (HANDLE_FDK_BITSTREAM hBitBuf, + LONG NrCrcBits); + + +#endif |