encode.h

//*@@@+++@@@@******************************************************************
//
// Copyright © Microsoft Corp.
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// modification, are permitted provided that the following conditions are met:
// 
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//*@@@---@@@@******************************************************************

#ifndef WMI_ENCODE_H
#define WMI_ENCODE_H

#include "strcodec.h"

/*************************************************************************
    struct / class definitions
*************************************************************************/

Int EncodeMacroblockDC(CWMImageStrCodec*, CCodingContext *, Int, Int);
Int EncodeMacroblockLowpass(CWMImageStrCodec*, CCodingContext *, Int, Int);
Int EncodeMacroblockHighpass(CWMImageStrCodec*, CCodingContext *, Int, Int);

Int quantizeMacroblock(CWMImageStrCodec *);
Void transformMacroblock(CWMImageStrCodec *);
Void predMacroblockEnc(CWMImageStrCodec *);

Void AdaptLowpassEnc(CCodingContext *pContext);
Void AdaptHighpassEnc(CCodingContext *pContext);
Void ResetCodingContextEnc(CCodingContext *pContext);
Int  AllocateCodingContextEnc(struct CWMImageStrCodec *pSC, Int iNumContexts, Int iTrimFlexBits);
Void FreeCodingContextEnc(struct CWMImageStrCodec *pSC);
Void predCBPEnc(CWMImageStrCodec *pSC, CCodingContext *pContext);

/*************************************************************************
    Forward transform definitions
*************************************************************************/
/** 2-point pre filter for boundaries (only used in 420 UV DC subband) **/
Void strPre2(PixelI *, PixelI *);

/** 2x2 pre filter (only used in 420 UV DC subband) **/
Void strPre2x2(PixelI *, PixelI *, PixelI *, PixelI *);

/** 4-point pre filter for boundaries **/
Void strPre4(PixelI *, PixelI *, PixelI *, PixelI *);

/** data allocation in working buffer (first stage) **/

/** Y, 444 U and V **/
/**  0  1  2  3 **/
/** 32 33 34 35 **/
/** 64 65 66 67 **/
/** 96 97 98 99 **/

/** 420 U and V **/
/**   0   2   4   6 **/
/**  64  66  68  70 **/
/** 128 130 132 134 **/
/** 192 194 196 198 **/

/** 4x4 foward DCT for first stage **/
Void strDCT4x4FirstStage(PixelI *);
Void strDCT4x4FirstStage420UV(PixelI *);

Void strDCT4x4Stage1(PixelI*);

/** 4x4 pre filter for first stage **/
Void strPre4x4FirstStage(PixelI *);
Void strPre4x4FirstStage420UV(PixelI *);

Void strPre4x4Stage1Split(PixelI* p0, PixelI* p1, Int iOffset);
Void strPre4x4Stage1(PixelI* p, Int iOffset);

/** data allocation in working buffer (second stage)**/

/** Y, 444 U and V **/
/**   0   4   8  12 **/
/** 128 132 136 140 **/
/** 256 260 264 268 **/
/** 384 388 392 396 **/

/** 420 U and V **/
/**   0  8 **/
/** 256 264 **/

/** 4x4 foward DCT for second stage **/
Void strDCT4x4SecondStage(PixelI *);
Void strNormalizeEnc(PixelI *, Bool);
Void strDCT2x2dnEnc(PixelI *, PixelI *, PixelI *, PixelI *);

/** 4x4 pre filter for second stage **/
Void strPre4x4Stage2Split(PixelI* p0, PixelI* p1);
    
#endif // ENCODE_H