h263pdec.c
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 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
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (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 ***** */
- //#include <string.h>
- #include "dllindex.h"
- #include "h261defs.h"
- #include "h261func.h"
- #include "h263plus.h"
- #include <stdio.h>
- #include "assert.h"
- #ifdef _MACINTOSH
- #include <string.h> // for memset
- #endif
- #ifdef COMPILE_MMX
- #include "mmxcpuid.h"
- #endif
- //#define VVPROFILER
- #define REPLACE_MACROS
- extern void ApplyVerticalDeblockingFilter( PIXEL * left, PIXEL * right, int offset);
- extern void ApplyVerticalDeblockingFilterMMX( PIXEL * left, PIXEL * right, int offset);
- extern void ApplyHorizontalDeblockingFilter( PIXEL * top, PIXEL * bottom, int offset);
- extern void ApplyHorizontalDeblockingFilterMMX( PIXEL * top, PIXEL * bottom, int offset);
- #ifdef VVPROFILER
- #include "hvdebtim.h"
- extern struct CVvDebugTimer * pVvProf[];
- #endif
- void PredBframePlus( MACROBLOCK_DESCR * mb, // Macroblock to be predicted
- PICTURE * prevPic, // Prev. picture (forward pred)
- PICTURE * nextPic, // Next P-picture (backward pred)
- PICTURE * Bpic // Output picture where pred is placed
- );
- // PredBframePlus - Form prediction for B-frame a la H.263+
- void PredBframePlus( MACROBLOCK_DESCR * mb, // Macroblock to be predicted
- PICTURE * prevPic, // Prev. picture (forward pred)
- PICTURE * nextPic, // Next P-picture (backward pred)
- PICTURE * Bpic // Output picture where pred is placed
- )
- {
- if(BFRAME_IS_BIDIRECTIONAL(mb))
- {
- PredBframe(mb,prevPic,nextPic,Bpic);
- }
- else
- {
- S8 saveMvX = mb->mv_x;
- S8 saveMvY = mb->mv_y;
- U8 saveType = mb->mtype;
- mb->mv_x = mb->mvdB_x;
- mb->mv_y = mb->mvdB_y;
- mb->mtype = MTYPE263_INTER;
- MotionComp263( mb, prevPic, Bpic );
- mb->mv_x = saveMvX;
- mb->mv_y = saveMvY;
- mb->mtype = saveType;
- }
- }
- //////////////////////////////////////////////////////////////////////////
- // Deblocking Filter Mode Functions
- //
- static U8 ClipTableBase[288];
- static U8 * ClipTable=NULL;
- static void InitializeClipTable()
- {
- int i;
- if(ClipTable) {
- return;
- } else {
- ClipTable = ClipTableBase + 16;
- }
- for(i = -16; i<=0; i++) ClipTable[i] = 0x00;
- for(i=1 ; i<256; i++) ClipTable[i] = (U8) i;
- for(i=256 ; i<272; i++) ClipTable[i] = 0xFF;
- }
- static S8 DiffCutoffTableBase[351]; // Range [-175, 175]
- static S8 * DiffCutoffTable=NULL;
- #ifdef COMPILE_MMX
- #define SHORTMAX 32767
- __int64 g_qp = 0;
- // max - qp
- __int64 g_max_qp = ((__int64) SHORTMAX)
- | (((__int64) SHORTMAX)<<16)
- | (((__int64) SHORTMAX)<<32)
- | (((__int64) SHORTMAX)<<48);
- // max - 2 * (qp)
- __int64 g_max_2qp = ((__int64) SHORTMAX )
- | (((__int64) SHORTMAX)<<16)
- | (((__int64) SHORTMAX)<<32)
- | (((__int64) SHORTMAX)<<48);
- #endif
- static void InitializeDiffCutoffTable(S32 qp)
- {
- static DiffTableQuantCache=0;
- int d, d2;
- if(DiffCutoffTable==NULL) {
- memset(DiffCutoffTableBase, 0, 351);
- DiffCutoffTable = DiffCutoffTableBase + 175;
- }
- if(DiffTableQuantCache == qp) return;
- for(d=0, d2=0; d2<=qp; d++, d2+=2) {
- DiffCutoffTable[d] = d;
- DiffCutoffTable[-d] = -d;
- }
- for(;d<=qp;d++) {
- DiffCutoffTable[d] = qp - d;
- DiffCutoffTable[-d] = -qp + d;
- }
- for(;d<=DiffTableQuantCache;d++) {
- DiffCutoffTable[d] = 0;
- DiffCutoffTable[-d] = 0;
- }
- DiffTableQuantCache = qp;
- #ifdef COMPILE_MMX
- {
- short max_qp, max_2pq;
- max_qp = (short)SHORTMAX - (short) qp; // max - pq/2
- max_2pq = (short)SHORTMAX - 2*(short)qp; // max - 2 * (pq/2)
-
- g_qp = (((__int64) qp))
- | (((__int64) qp)<<16)
- | (((__int64) qp)<<32)
- | (((__int64) qp)<<48);
- g_max_qp = (((__int64) max_qp))
- | (((__int64) max_qp)<<16)
- | (((__int64) max_qp)<<32)
- | (((__int64) max_qp)<<48);
- g_max_2qp = (((__int64) max_2pq))
- | (((__int64) max_2pq)<<16)
- | (((__int64) max_2pq)<<32)
- | (((__int64) max_2pq)<<48);
- }
- #endif
- }
- #ifdef _DEBUG
- static PIXEL * MACROBLOCK_LUMA_PTR(PICTURE * p,MACROBLOCK_DESCR * mb)
- {
- return ((p)->y.ptr + 16*(mb)->x + 16*(mb)->y*(p)->y.hoffset);
- }
- static PIXEL * BlockLumaPtr(PICTURE * pic, MACROBLOCK_DESCR * mb, int blk)
- {
- switch(blk)
- {
- case 0:
- return MACROBLOCK_LUMA_PTR(pic,mb);
- case 1:
- return MACROBLOCK_LUMA_PTR(pic,mb) + 8;
- case 2:
- return MACROBLOCK_LUMA_PTR(pic,mb) + 8*pic->y.hoffset;
- default:
- return MACROBLOCK_LUMA_PTR(pic,mb) + 8*(pic->y.hoffset + 1);
- }
- }
- static PIXEL * MacroBlockCrPtr(PICTURE * pic, MACROBLOCK_DESCR * mb)
- {
- return pic->cr.ptr + 8*mb->x + 8*mb->y*pic->cr.hoffset;
- }
- static PIXEL * MacroBlockCbPtr(PICTURE * pic, MACROBLOCK_DESCR * mb)
- {
- return pic->cb.ptr + 8*mb->x + 8*mb->y*pic->cb.hoffset;
- }
- #else
- #define MACROBLOCK_LUMA_PTR(p, mb)
- ((p)->y.ptr + 16*(mb)->x + 16*(mb)->y*(p)->y.hoffset)
- #define BlockLumaPtr(pic, mb, blk)
- (MACROBLOCK_LUMA_PTR((pic),(mb)) + 4*((blk)&2)*(pic)->y.hoffset + 8*((blk)&1))
- #define MacroBlockCrPtr(pic, mb)
- ((pic)->cr.ptr + 8*(mb)->x + 8*(mb)->y*(pic)->cr.hoffset)
- #define MacroBlockCbPtr(pic, mb)
- ((pic)->cb.ptr + 8*(mb)->x + 8*(mb)->y*(pic)->cb.hoffset)
- #endif
- /******************************************************************************************/
- void ApplyVerticalDeblockingFilter( PIXEL * left, PIXEL * right, int offset)
- {
- int i;
- left += 7;
- for(i=0; i<8; i++) {
- //8-bit arithmetic might overflow, changing to 32-bit
- S32 d = DiffCutoffTable[(3*(S32) left[-1] - 8*(S32)left[0] + 8*(S32)right[0] - 3*(S32)right[1])>>4];
- *left = ClipTable[*left + d];
- *right = ClipTable[*right - d];
- left += offset;
- right += offset;
- }
- }
- /*
- PIXEL *left01, *right01, *left02, *right02;
- static void ApplyVerticalDeblockingFilter( PIXEL * left, PIXEL * right, int offset)
- {
- int result, ii;
- left01 = left;
- right01 = right;
- left02 = ((PIXEL *)calloc((8*offset)+8, sizeof(*left)));
- //left02 += 7;
- right02 = ((PIXEL *)calloc((8*offset)+8, sizeof(*right)));
- if(!left02 || !right02) return;
- //left[-1, 0, -1+offset, 0+offset, ..., -1+7*offset, 0+8*offset]
- //right[0, +1, 0+offset, +1+offset, ..., 0+7*offset, +1+8*offset]
- for(ii=0; ii<8; ii++) {
- left02[-1+ii*offset+7] = left[-1+ii*offset+7];
- left02[ 0+ii*offset+7] = left[ 0+ii*offset+7];
- right02[ 0+ii*offset] = right[ 0+ii*offset];
- right02[+1+ii*offset] = right[+1+ii*offset];
- }
- //call deblocking filter
- ApplyVerticalDeblockingFilterMMX(left01, right01, offset);
- ApplyVerticalDeblockingFilterInt(left02, right02, offset);
-
- //compare output
- for(ii=0; ii<8; ii++) {
- if(
- (left02[-1+ii*offset+7] != left01[-1+ii*offset+7])
- || (left02[ 0+ii*offset+7] != left01[ 0+ii*offset+7])
- || (right02[ 0+ii*offset] != right01[ 0+ii*offset])
- || (right02[+1+ii*offset] != right01[+1+ii*offset])
- ) {
- result = ii;
- }
- }
- free(left02);
- free(right02);
- }
- */
- /******************************************************************************************/
- void ApplyHorizontalDeblockingFilter( PIXEL * top, PIXEL * bottom, int offset)
- {
- int i;
- PIXEL *next_to_top;
- PIXEL *next_after_bottom;
- top += 7*offset;
- next_to_top = top - offset;
- next_after_bottom = bottom + offset;
- for(i=0; i<8; i++) {
- //8-bit arithmetic might overflow, changing to 32-bit
- S32 d = DiffCutoffTable[(3*(S32)next_to_top[0] - 8*(S32)top[0] + 8*(S32)bottom[0] - 3*(S32)next_after_bottom[0])>>4];
-
- *top = ClipTable[*top + d];
- *bottom = ClipTable[*bottom - d];
- top += 1;
- next_to_top += 1;
- bottom += 1;
- next_after_bottom += 1;
- }
- }
- /*
- PIXEL *top01=0, *bottom01=0;
- PIXEL *top02=0, *bottom02=0;
- static void ApplyHorizontalDeblockingFilter( PIXEL * top, PIXEL * bottom, int offset)
- {
- int result;
- top01 = top;
- bottom01 = bottom;
- top02 = calloc((7*offset)+8, sizeof(*top));
- bottom02 = calloc(offset+8, sizeof(*bottom));
- if(!top02 || !bottom02) return;
- //top+7*offset [0...7]
- //top+6*offset [0...7]
- memcpy(top02 + (7*offset), top + (7*offset), 8*sizeof(*top));
- memcpy(top02 + (6*offset), top + (6*offset), 8*sizeof(*top));
-
- //bottom[0...7]
- //bottom+offset[0...7]
- memcpy(bottom02, bottom, 8*sizeof(*bottom));
- memcpy(bottom02 + offset, bottom + offset, 8*sizeof(*bottom));
- //call deblocking filter
- ApplyHorizontalDeblockingFilterMMX(top02, bottom02, offset);
- ApplyHorizontalDeblockingFilterInt(top, bottom, offset);
-
- //compare output
- if((result = memcmp(top02 + (7*offset), top + (7*offset), 8*sizeof(*top))) != 0) {
- PIXEL *point = top + (7*offset);
- PIXEL *point02 = top02 + (7*offset);
- }
- if((result = memcmp(top02 + (6*offset), top + (6*offset), 8*sizeof(*top))) != 0) {
- PIXEL *point = top + (6*offset);
- PIXEL *point02 = top02 + (6*offset);
- }
- if((result = memcmp(bottom02, bottom, 8*sizeof(*bottom))) != 0) {
- PIXEL *point = bottom;
- PIXEL *point02 = bottom02;
- }
- if((result = memcmp(bottom02 + offset, bottom + offset, 8*sizeof(*bottom))) != 0) {
- PIXEL *point = bottom + offset;
- PIXEL *point02 = bottom02 + offset;
- }
- free(top02);
- free(bottom02);
- }
- */
- /******************************************************************************************/
- // This routine applies the H.263+ deblocking filter to a decoded picture. Note
- // That this routine is NOT H.263+ compliant because it applies the filter after the
- // reconstructed picture has already been clipped to 0,255
- void ApplyDeblockingFilter( PICTURE * pic, MACROBLOCK_DESCR * mb, S32 Bframe)
- {
- int i,h,v;
- int numhor=pic->y.nhor>>4; // number of mb per row
- int numvert=pic->y.nvert>>4; // number of mb per col
- int nummb = numhor*numvert;
- int off = pic->y.hoffset;
- #ifdef REPLACE_MACROS
- PIXEL *pLuma, *pCb, *pCr;
- #endif
- void (*pApplyHorizontalDeblockingFilter)(PIXEL *, PIXEL *, int);
- void (*pApplyVerticalDeblockingFilter)(PIXEL *, PIXEL *, int);
- #if defined(COMPILE_MMX)
- #if (_MSC_VER>=1100)
- if(cpuid_is_mmx_deblo_on()) {
- //do mmx if compiler switch AND initialized AND detected
- pApplyHorizontalDeblockingFilter = ApplyHorizontalDeblockingFilterMMX;
- pApplyVerticalDeblockingFilter = ApplyVerticalDeblockingFilterMMX;
- } else
- #else
- #pragma message("need MSVC 5.0 or higher to compile MMX - MMX disabled")
- #endif
- #endif
- {
- pApplyHorizontalDeblockingFilter = ApplyHorizontalDeblockingFilter;
- pApplyVerticalDeblockingFilter = ApplyVerticalDeblockingFilter;
- }
- #ifdef VVPROFILER
- S32 ret;
- S32 nVvProfNb = 6;
- if(!pVvProf[nVvProfNb]) pVvProf[nVvProfNb] = newCVvDebugTimer();//memory leak on destruction
- StartTime(pVvProf[nVvProfNb]);
- #endif
- #ifdef REPLACE_MACROS
- //aw using pointers instead of macros
- pLuma = pic->y.ptr;
- pCb = pic->cb.ptr;
- pCr = pic->cr.ptr;
- assert(off==16*numhor);
- #endif
- if(ClipTable==NULL) InitializeClipTable();
- for(i=0,v=0; v<numvert; v++
- #ifdef REPLACE_MACROS
- , pLuma += 15*off,
- pCb += 7*pic->cb.hoffset + pic->cb.hoffset/2,
- pCr += 7*pic->cr.hoffset + pic->cr.hoffset/2
- #endif
- ) {
- for(h=0; h<numhor; h++, i++
- #ifdef REPLACE_MACROS
- , pLuma+=16, pCb+=8, pCr+=8
- #endif
- ) {
- int qp;
- if(mb[i].mtype == MTYPE_SKIP) {
- // Here we check to see if the macroblock below us is coded. If it is then we need to
- // filter our bottom horizontal edges. Note that we need to use the quant value of the
- // block below
- if(v<numvert-1 && mb[i+numhor].mtype != MTYPE_SKIP) {
- qp = Bframe ? mb[i+numhor].Bquant : mb[i+numhor].quant;
- InitializeDiffCutoffTable(qp);
- #ifndef REPLACE_MACROS
- pApplyHorizontalDeblockingFilter(BlockLumaPtr(pic,&mb[i],2), BlockLumaPtr(pic,&mb[i+numhor],0), off);
- pApplyHorizontalDeblockingFilter(BlockLumaPtr(pic,&mb[i],3), BlockLumaPtr(pic,&mb[i+numhor],1), off);
- pApplyHorizontalDeblockingFilter(MacroBlockCbPtr(pic, &mb[i]), MacroBlockCbPtr(pic,&mb[i+numhor]), pic->cb.hoffset);
- pApplyHorizontalDeblockingFilter(MacroBlockCrPtr(pic, &mb[i]), MacroBlockCrPtr(pic,&mb[i+numhor]), pic->cr.hoffset);
- #else
- assert(BlockLumaPtr(pic,&mb[i],2) == pLuma + 8*off);assert(BlockLumaPtr(pic,&mb[i+numhor],0) == pLuma + 16*off);
- assert(BlockLumaPtr(pic,&mb[i],3) == pLuma + 8*off +8);assert(BlockLumaPtr(pic,&mb[i+numhor],1) == pLuma + 16*off +8);
- assert(MacroBlockCbPtr(pic, &mb[i]) == pCb);assert(MacroBlockCbPtr(pic,&mb[i+numhor]) == pCb + 8*pic->cb.hoffset);
- assert(MacroBlockCrPtr(pic, &mb[i]) == pCr);assert(MacroBlockCrPtr(pic,&mb[i+numhor]) == pCr + 8*pic->cr.hoffset);
- pApplyHorizontalDeblockingFilter(pLuma + 8*off, pLuma + 16*off, off);
- pApplyHorizontalDeblockingFilter(pLuma + 8*off +8, pLuma + 16*off +8, off);
- pApplyHorizontalDeblockingFilter(pCb, pCb + 8*pic->cb.hoffset, pic->cb.hoffset);
- pApplyHorizontalDeblockingFilter(pCr, pCr + 8*pic->cr.hoffset, pic->cr.hoffset);
- #endif
- }
- // Here we check to see if the macroblock to the left of us is coded. If so do our left vertical
- // edges
- if(h && mb[i-1].mtype != MTYPE_SKIP) {
- qp = Bframe ? mb[i-1].Bquant : mb[i-1].quant;
- InitializeDiffCutoffTable(qp);
- #ifndef REPLACE_MACROS
- pApplyVerticalDeblockingFilter(BlockLumaPtr(pic,&mb[i-1],1), BlockLumaPtr(pic,&mb[i],0), off);
- pApplyVerticalDeblockingFilter(BlockLumaPtr(pic,&mb[i-1],3), BlockLumaPtr(pic,&mb[i],2), off);
- pApplyVerticalDeblockingFilter(MacroBlockCbPtr(pic, &mb[i-1]), MacroBlockCbPtr(pic,&mb[i]), pic->cb.hoffset);
- pApplyVerticalDeblockingFilter(MacroBlockCrPtr(pic, &mb[i-1]), MacroBlockCrPtr(pic,&mb[i]), pic->cr.hoffset);
- #else
- assert(BlockLumaPtr(pic,&mb[i-1],1) == pLuma -8);assert(BlockLumaPtr(pic,&mb[i],0) == pLuma);
- assert(BlockLumaPtr(pic,&mb[i-1],3) == pLuma + 8*off -8);assert(BlockLumaPtr(pic,&mb[i],2) == pLuma + 8*off);
- assert(MacroBlockCbPtr(pic, &mb[i-1]) == pCb -8);assert(MacroBlockCbPtr(pic,&mb[i]) == pCb);
- assert(MacroBlockCrPtr(pic, &mb[i-1]) == pCr -8);assert(MacroBlockCrPtr(pic,&mb[i]) == pCr);
- pApplyVerticalDeblockingFilter(pLuma -8, pLuma, off);
- pApplyVerticalDeblockingFilter(pLuma + 8*off -8, pLuma + 8*off, off);
- pApplyVerticalDeblockingFilter(pCb -8, pCb, pic->cb.hoffset);
- pApplyVerticalDeblockingFilter(pCr -8, pCr, pic->cr.hoffset);
- #endif
- }
- } else {
- qp = Bframe ? mb[i].Bquant : mb[i].quant;
- InitializeDiffCutoffTable(qp);
- // First do the first two horizontal edges
- #ifndef REPLACE_MACROS
- pApplyHorizontalDeblockingFilter(BlockLumaPtr(pic,&mb[i],0), BlockLumaPtr(pic,&mb[i],2), off);
- pApplyHorizontalDeblockingFilter(BlockLumaPtr(pic,&mb[i],1), BlockLumaPtr(pic,&mb[i],3), off);
- #else
- assert(BlockLumaPtr(pic,&mb[i],0) == pLuma);assert(BlockLumaPtr(pic,&mb[i],2) == pLuma + 8*off);
- assert(BlockLumaPtr(pic,&mb[i],1) == pLuma +8);assert(BlockLumaPtr(pic,&mb[i],3) == pLuma + 8*off +8);
- pApplyHorizontalDeblockingFilter(pLuma, pLuma + 8*off, off);
- pApplyHorizontalDeblockingFilter(pLuma +8, pLuma + 8*off +8, off);
- #endif
- // Now do the first two vertical edges; don't filter if the left edge is a picture edge
- if(h) {
- #ifndef REPLACE_MACROS
- pApplyVerticalDeblockingFilter(BlockLumaPtr(pic,&mb[i-1],1), BlockLumaPtr(pic,&mb[i],0), off);
- #else
- assert(BlockLumaPtr(pic,&mb[i-1],1) == pLuma -8);assert(BlockLumaPtr(pic,&mb[i],0) == pLuma);
- pApplyVerticalDeblockingFilter(pLuma -8, pLuma, off);
- #endif
- }
- #ifndef REPLACE_MACROS
- pApplyVerticalDeblockingFilter(BlockLumaPtr(pic,&mb[i],0), BlockLumaPtr(pic,&mb[i],1), off);
- #else
- assert(BlockLumaPtr(pic,&mb[i],0) == pLuma);assert(BlockLumaPtr(pic,&mb[i],1) == pLuma +8);
- pApplyVerticalDeblockingFilter(pLuma, pLuma +8, off);
- #endif
- // Now do the bottom two horizontal edges; don't filter if we are at a bottom edge of the picture
- if(v < numvert-1) {
- // Use quantization parameter for lower macroblock if it was coded
- if(mb[i+numhor].mtype != MTYPE_SKIP) {
- InitializeDiffCutoffTable(Bframe ? mb[i+numhor].Bquant : mb[i+numhor].quant);
- }
- #ifndef REPLACE_MACROS
- pApplyHorizontalDeblockingFilter(BlockLumaPtr(pic,&mb[i],2), BlockLumaPtr(pic,&mb[i+numhor],0),
- off);
- pApplyHorizontalDeblockingFilter(BlockLumaPtr(pic,&mb[i],3), BlockLumaPtr(pic,&mb[i+numhor],1),
- off);
- #else
- assert(BlockLumaPtr(pic,&mb[i],2) == pLuma + 8*off);assert(BlockLumaPtr(pic,&mb[i+numhor],0) == pLuma + 16*off);
- assert(BlockLumaPtr(pic,&mb[i],3) == pLuma + 8*off +8);assert(BlockLumaPtr(pic,&mb[i+numhor],1) == pLuma + 16*off +8);
- pApplyHorizontalDeblockingFilter(pLuma + 8*off, pLuma + 16*off, off);
- pApplyHorizontalDeblockingFilter(pLuma + 8*off +8, pLuma + 16*off +8, off);
- #endif
-
- // restore quantization parameter of current macroblock
- InitializeDiffCutoffTable(qp);
- }
- // Lastly do the lower two vertical edges; don't filter if the left edge is a picture edge
- if(h) {
- #ifndef REPLACE_MACROS
- pApplyVerticalDeblockingFilter(BlockLumaPtr(pic,&mb[i-1],3), BlockLumaPtr(pic,&mb[i],2), off);
- #else
- assert(BlockLumaPtr(pic,&mb[i-1],3) == pLuma + 8*off - 8);assert(BlockLumaPtr(pic,&mb[i],2) == pLuma +8*off);
- pApplyVerticalDeblockingFilter(pLuma + 8*off - 8, pLuma +8*off, off);
- #endif
- }
- #ifndef REPLACE_MACROS
- pApplyVerticalDeblockingFilter(BlockLumaPtr(pic,&mb[i],2), BlockLumaPtr(pic,&mb[i],3), off);
- #else
- assert(BlockLumaPtr(pic,&mb[i],2) == pLuma + 8*off);assert(BlockLumaPtr(pic,&mb[i],3) == pLuma + 8*off +8);
- pApplyVerticalDeblockingFilter(pLuma + 8*off, pLuma + 8*off +8, off);
- #endif
- // Now apply the filters to the chroma
- if(v < numvert-1) {
- #ifndef REPLACE_MACROS
- pApplyHorizontalDeblockingFilter(MacroBlockCbPtr(pic, &mb[i]), MacroBlockCbPtr(pic,&mb[i+numhor]), pic->cb.hoffset);
- pApplyHorizontalDeblockingFilter(MacroBlockCrPtr(pic, &mb[i]), MacroBlockCrPtr(pic,&mb[i+numhor]), pic->cr.hoffset);
- #else
- assert(MacroBlockCbPtr(pic, &mb[i]) == pCb);assert(MacroBlockCbPtr(pic,&mb[i+numhor]) == pCb +8*pic->cb.hoffset);
- assert(MacroBlockCrPtr(pic, &mb[i]) == pCr);assert(MacroBlockCrPtr(pic,&mb[i+numhor]) == pCr +8*pic->cr.hoffset);
- pApplyHorizontalDeblockingFilter(pCb, pCb +8*pic->cb.hoffset, pic->cb.hoffset);
- pApplyHorizontalDeblockingFilter(pCr, pCr +8*pic->cr.hoffset, pic->cr.hoffset);
- #endif
- }
- if(h) {
- #ifndef REPLACE_MACROS
- pApplyVerticalDeblockingFilter(MacroBlockCbPtr(pic, &mb[i-1]), MacroBlockCbPtr(pic,&mb[i]), pic->cb.hoffset);
- pApplyVerticalDeblockingFilter(MacroBlockCrPtr(pic, &mb[i-1]), MacroBlockCrPtr(pic,&mb[i]), pic->cr.hoffset);
- #else
- assert(MacroBlockCbPtr(pic, &mb[i-1]) == pCb -8);assert(MacroBlockCbPtr(pic,&mb[i]) == pCb);
- assert(MacroBlockCrPtr(pic, &mb[i-1]) == pCr -8);assert(MacroBlockCrPtr(pic,&mb[i]) == pCr);
- pApplyVerticalDeblockingFilter(pCb -8, pCb, pic->cb.hoffset);
- pApplyVerticalDeblockingFilter(pCr -8, pCr, pic->cr.hoffset);
- #endif
- }
- }
- }
- }
- //clear the mmx state
- #if defined(COMPILE_MMX)
- #if (_MSC_VER>=1100)
- if(cpuid_is_mmx_deblo_on()) {
- __asm emms
- }
- #endif
- #endif
- #ifdef VVPROFILER
- StopAndAccuTime(pVvProf[nVvProfNb]);
- #endif
- }
- /******************************************************************************************/
- //////////////////////////////////////////////////////////////////////////////
- // Deblocking filter for Reduced Resolution Update mode
- //
- static void vertFilterRRUmode( PIXEL * right, int offset, int len )
- {
- int i, valLeft, valRight;
- for(i=0; i < len; i++) {
- valLeft = right[-1];
- valRight = right[0];
- right[-1] = (3 * valLeft + 1 * valRight + 2) >> 2;
- right[0] = (1 * valLeft + 3 * valRight + 2) >> 2;
- right += offset;
- }
- }
- static void horFilterRRUmode( PIXEL * bottom, int offset, int len )
- {
- int i, valTop, valBottom;
- PIXEL *top;
-
- top = bottom - offset;
- for(i=0; i < len; i++) {
- valTop = top[0];
- valBottom = bottom[0];
- top[0] = (3 * valTop + 1 * valBottom + 2) >> 2;
- bottom[0] = (1 * valTop + 3 * valBottom + 2) >> 2;
- top += 1;
- bottom += 1;
- }
- }
- // This routine applies the Reduced-res. Update mode deblocking filter to a decoded picture.
- extern void ReducedResDeblockingFilter( PICTURE * pic, MACROBLOCK_DESCR * mb )
- {
- int i,h,v;
- int numhor = (pic->y.nhor + 16) >> 5; // number of mb per row
- int numvert= (pic->y.nvert+ 16) >> 5; // number of mb per col
- int nummb = numhor*numvert;
- int off = pic->y.hoffset;
- PIXEL *luma0;
- int hSize, vSize, cOffset;
-
- for(i=0,v=0; v<numvert; v++) {
- vSize = 32;
- if (32 * v + 16 >= pic->y.nvert)
- vSize = 16; // MB is truncated at the bottom
- for(h=0; h<numhor; h++, i++) {
- hSize = 32;
- if (32 * h + 16 >= pic->y.nhor)
- hSize = 16; // MB is truncated at the right
- luma0 = pic->y.ptr + 32 * h + 32 * v * off;
- cOffset = 16 * h + 16 * v * pic->cb.hoffset;
- // Filter horizontal edge inside block
- if (mb[i].mtype != MTYPE_SKIP && vSize == 32) {
- horFilterRRUmode( luma0 + 16*off, off, hSize );
- }
- // Filter horizontal edge at the bottom of the block
- if (v < numvert-1 &&
- (mb[i].mtype != MTYPE_SKIP || mb[i+numhor].mtype != MTYPE_SKIP)) {
- horFilterRRUmode( luma0 + 32*off, off, hSize );
- horFilterRRUmode( pic->cb.ptr + cOffset + 16*pic->cb.hoffset,
- pic->cb.hoffset, hSize>>1 );
- horFilterRRUmode( pic->cr.ptr + cOffset + 16*pic->cr.hoffset,
- pic->cr.hoffset, hSize>>1 );
- }
- // Filter vertical edge at the left of the block
- if (h > 0 &&
- (mb[i].mtype != MTYPE_SKIP || mb[i-1].mtype != MTYPE_SKIP)) {
- vertFilterRRUmode( luma0, off, vSize );
- vertFilterRRUmode( pic->cb.ptr + cOffset,
- pic->cb.hoffset, vSize>>1 );
- vertFilterRRUmode( pic->cr.ptr + cOffset,
- pic->cr.hoffset, vSize>>1 );
- }
- // Filter vertical edge inside block
- if (mb[i].mtype != MTYPE_SKIP && hSize == 32) {
- vertFilterRRUmode( luma0 + 16, off, vSize );
- }
- }
- }
- }
- // Alternate Horizontal Scan Order
- static int alt_hor_scan[64] = { 0, 1, 2, 3,10,11,12,13,
- 4, 5, 8, 9,17,16,15,14,
- 6, 7,19,18,26,27,28,29,
- 20,21,24,25,30,31,32,33,
- 22,23,34,35,42,43,44,45,
- 36,37,40,41,46,47,48,49,
- 38,39,50,51,56,57,58,59,
- 52,53,54,55,60,61,62,63};
- // Alternate Vertical (MPEG-2) Scan Order
- static int alt_ver_scan[64] = { 0, 4, 6,20,22,36,38,52,
- 1, 5, 7,21,23,37,39,53,
- 2, 8,19,24,34,40,50,54,
- 3, 9,18,25,35,41,51,55,
- 10,17,26,30,42,46,56,60,
- 11,16,27,31,43,47,57,61,
- 12,15,28,32,44,48,58,62,
- 13,14,29,33,45,49,59,63};
- static int MyZigZag[64] = { 0, 1, 5, 6, 14, 15, 27, 28,
- 2, 4, 7, 13, 16, 26, 29, 42,
- 3, 8, 12, 17, 25, 30, 41, 43,
- 9, 11, 18, 24, 31, 40, 44, 53,
- 10, 19, 23, 32, 39, 45, 52, 54,
- 20, 22, 33, 38, 46, 51, 55, 60,
- 21, 34, 37, 47, 50, 56, 59, 61,
- 35, 36, 48, 49, 57, 58, 62, 63
- };
- static int reorder[8] = {0,4,2,7, 1,5,3,6};
- int ireorder[8] = {0,4,2,6, 1,5,7,3};
- int inv_alt_hor_scan[64];
- int inv_alt_hor_scan_no_reorder[64];
- int alt_hor_to_zigzag[64];
- int inv_alt_ver_scan[64];
- int inv_alt_ver_scan_no_reorder[64];
- int alt_ver_to_zigzag[64];
- int zigzag_to_zigzag[64];
- void InitAdvancedIntraTables()
- {
- static int initialized=0;
- int index,i,j;
- if(initialized) return;
- initialized = 1;
- // Generate inverse scan order vectors
- for (index = 0; index < 64; index++) {
- i = reorder[index % 8];
- j = reorder[index / 8];
- inv_alt_ver_scan[ alt_ver_scan[index] ] = i*8 + j;
- inv_alt_hor_scan[ alt_hor_scan[index] ] = i*8 + j;
- inv_alt_ver_scan_no_reorder[ alt_ver_scan[index] ] = index;
- inv_alt_hor_scan_no_reorder[ alt_hor_scan[index] ] = index;
- }
- // Now do the scan's from alt hor and alt ver to zigzag.
- // We need to be careful because the above tables take into
- // account the reorderings that come from our DCT. We don't
- // want to take that into account, so we apply the ireorder
- for(index = 0; index < 64; index++) {
- i = ireorder[ inv_alt_ver_scan[index]&7 ];
- j = ireorder[ inv_alt_ver_scan[index]>>3 ];
- alt_ver_to_zigzag[ index ] = MyZigZag[ i*8 + j ];
-
- i = ireorder[ inv_alt_hor_scan[index]&7 ];
- j = ireorder[ inv_alt_hor_scan[index]>>3 ];
- alt_hor_to_zigzag[ index ] = MyZigZag[ i*8 + j ];
- zigzag_to_zigzag[ index ] = index;
- }
- }