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/*************************** Fraunhofer IIS FDK Tools ***********************
(C) Copyright Fraunhofer IIS (2005)
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.
$Id$
Author(s): M. Lohwasser
Description: common bitbuffer read/write routines
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.
******************************************************************************/
#ifndef __FDK_BITBUFFER_H__
#define __FDK_BITBUFFER_H__
#include "machine_type.h"
typedef struct
{
UINT ValidBits;
UINT ReadOffset;
UINT WriteOffset;
UINT BitCnt;
UINT BitNdx;
UCHAR *Buffer;
UINT bufSize;
UINT bufBits;
} FDK_BITBUF;
typedef FDK_BITBUF *HANDLE_FDK_BITBUF;
#ifdef __cplusplus
extern "C"
{
#endif
extern const UINT BitMask [32+1];
/** The BitBuffer Functions are called straight from FDK_bitstream Interface.
For Functions functional survey look there.
*/
void FDK_CreateBitBuffer (HANDLE_FDK_BITBUF *hBitBuffer, UCHAR *pBuffer, UINT bufSize) ;
void FDK_InitBitBuffer (HANDLE_FDK_BITBUF hBitBuffer, UCHAR *pBuffer,
UINT bufSize, UINT validBits) ;
void FDK_ResetBitBuffer (HANDLE_FDK_BITBUF hBitBuffer) ;
void FDK_DeleteBitBuffer (HANDLE_FDK_BITBUF hBitBuffer) ;
INT FDK_get (HANDLE_FDK_BITBUF hBitBuffer, const UINT numberOfBits) ;
INT FDK_get32 (HANDLE_FDK_BITBUF hBitBuffer) ;
void FDK_put (HANDLE_FDK_BITBUF hBitBuffer, UINT value, const UINT numberOfBits) ;
INT FDK_getBwd (HANDLE_FDK_BITBUF hBitBuffer, const UINT numberOfBits);
void FDK_putBwd (HANDLE_FDK_BITBUF hBitBuffer, UINT value, const UINT numberOfBits) ;
void FDK_pushBack (HANDLE_FDK_BITBUF hBitBuffer, const UINT numberOfBits, UCHAR config) ;
void FDK_pushForward (HANDLE_FDK_BITBUF hBitBuffer, const UINT numberOfBits, UCHAR config) ;
void FDK_byteAlign (HANDLE_FDK_BITBUF hBitBuffer, UCHAR config) ;
UINT FDK_getValidBits (HANDLE_FDK_BITBUF hBitBuffer) ;
INT FDK_getFreeBits (HANDLE_FDK_BITBUF hBitBuffer) ;
void FDK_setBitCnt (HANDLE_FDK_BITBUF hBitBuffer, const UINT value) ;
INT FDK_getBitCnt (HANDLE_FDK_BITBUF hBitBuffer) ;
void FDK_Feed (HANDLE_FDK_BITBUF hBitBuffer, UCHAR inputBuffer [],
const UINT bufferSize, UINT *bytesValid) ;
void FDK_Copy (HANDLE_FDK_BITBUF hBitBufDst, HANDLE_FDK_BITBUF hBitBufSrc, UINT *bytesValid) ;
void FDK_Fetch (HANDLE_FDK_BITBUF hBitBuffer, UCHAR outBuf[], UINT *writeBytes);
#ifdef __cplusplus
}
#endif
#endif
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