97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
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/***************************************************************************\
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*
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* (C) copyright Fraunhofer - IIS (1998)
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* All Rights Reserved
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*
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* filename: bitbuffer_c.h
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* project : MPEG-4 Audio Decoder
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* author : Stefan Gewinner gew@iis.fhg.de
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* contents/description: memory input class with transport format
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*
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* This software and/or program is protected by copyright law and
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* international treaties. Any reproduction or distribution of this
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* software and/or program, or any portion of it, may result in severe
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* civil and criminal penalties, and will be prosecuted to the maximum
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* extent possible under law.
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*
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* $Header: /cvs/root/winamp/aacdec/incs/bitbuffer_c.h,v 1.3 2012/05/08 20:16:49 audiodsp Exp $
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*
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\***************************************************************************/
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#ifndef __BITBUFFER_C_H__
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#define __BITBUFFER_C_H__
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#include "mp4dec_helpers/machine.h"
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#include "mp4dec_helpers/bitstream_c.h"
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struct CSStreamInfo;
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enum
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{
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CSBitBuffer_BufferSize = 8192,
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CSBitBuffer_BufferBits = CSBitBuffer_BufferSize*8,
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/* CBitBuffer_InvalidCrcValue = 0xFFFFFFFF, */
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CBitBuffer_MaximumMarkers = 25*4
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/* , CAverageNumber_MaximumSize = 16 */
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};
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typedef struct
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{
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CSBitStream_MarkerPosition what ;
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UINT32 m_elementBits ;
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UINT32 m_ValidBits;
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UINT32 m_BitCnt;
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UINT32 m_BitNdx;
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} CMarker, *CMarkerPtr ;
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typedef struct CSBitBuffer
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{
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CSBitStream base ;
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UINT32 m_ValidBits;
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UINT32 m_ReadOffset;
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UINT32 m_BitCnt;
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UINT32 m_BitNdx;
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UINT32 m_FramesLeftInPacket ;
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UINT32 m_FrameCrcValue ;
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INT32 m_isEOF ;
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UINT8 m_Buffer [CSBitBuffer_BufferSize] ;
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/* CAverageNumber m_ActualBitrate ; */
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UINT32 m_LastBufferFullness ;
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UINT32 m_LastFrameLength ;
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CMarker m_MarkerList [CBitBuffer_MaximumMarkers] ;
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UINT32 m_Markers ;
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} CSBitBuffer, *CSBitBufferPtr ;
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#ifdef __cplusplus
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extern "C" {
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#endif
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void CSBitBuffer_Initialize(CSBitBufferPtr self);
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void CSBitBuffer_Feed(CSBitBufferPtr self, const UINT8 pBuf[], const UINT32 cbSize, UINT32 *cbValid);
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INT32 CSBitBuffer_IsDecodableFrame(CSBitBufferPtr self, struct CSStreamInfo *info);
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INT32 CSBitBuffer_IsCrcConsistent(CSBitBufferPtr self) ;
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void CSBitBuffer_SetEOF(CSBitBufferPtr self) ;
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#ifdef __cplusplus
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}
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#endif
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#endif
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