ref: 83b502b3f6d71f22f1f346d44098c8e712b95cc9
parent: 1699775cbbb131a2c8b81016e47a0c204428a33e
author: lingzhu <syureyi@163.com>
date: Mon Dec 22 06:12:05 EST 2014
Delete \
--- a/\
+++ /dev/null
@@ -1,1731 +1,0 @@
-/*!
- * \copy
- * Copyright (c) 2008-2013, Cisco Systems
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * Abstract
- * current slice decoding
- *
- * History
- * 07/10/2008 Created
- * 08/09/2013 Modified
- *
- *****************************************************************************/
-
-
-#include "deblocking.h"
-
-#include "decode_slice.h"
-
-#include "parse_mb_syn_cavlc.h"
-#include "parse_mb_syn_cabac.h"
-#include "rec_mb.h"
-#include "mv_pred.h"
-
-#include "cpu_core.h"
-
-namespace WelsDec {-
-int32_t WelsTargetSliceConstruction (PWelsDecoderContext pCtx) {- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PSlice pCurSlice = &pCurLayer->sLayerInfo.sSliceInLayer;
- PSliceHeader pSliceHeader = &pCurSlice->sSliceHeaderExt.sSliceHeader;
-
- int32_t iTotalMbTargetLayer = pSliceHeader->pSps->uiTotalMbCount;
-
- int32_t iCurLayerWidth = pCurLayer->iMbWidth << 4;
- int32_t iCurLayerHeight = pCurLayer->iMbHeight << 4;
-
- int32_t iNextMbXyIndex = 0;
- PFmo pFmo = pCtx->pFmo;
-
- int32_t iTotalNumMb = pCurSlice->iTotalMbInCurSlice;
- int32_t iCountNumMb = 0;
- PDeblockingFilterMbFunc pDeblockMb;
-
- if (!pCtx->bAvcBasedFlag && iCurLayerWidth != pCtx->iCurSeqIntervalMaxPicWidth) {- return -1;
- }
-
- iNextMbXyIndex = pSliceHeader->iFirstMbInSlice;
- pCurLayer->iMbX = iNextMbXyIndex % pCurLayer->iMbWidth;
- pCurLayer->iMbY = iNextMbXyIndex / pCurLayer->iMbWidth;
- pCurLayer->iMbXyIndex = iNextMbXyIndex;
-
- if (0 == iNextMbXyIndex) {- pCurLayer->pDec->iSpsId = pSliceHeader->iSpsId;
- pCurLayer->pDec->iPpsId = pSliceHeader->iPpsId;
-
- pCurLayer->pDec->uiQualityId = pCurLayer->sLayerInfo.sNalHeaderExt.uiQualityId;
- }
-
- do {- if (iCountNumMb >= iTotalNumMb) {- break;
- }
-
- if (WelsTargetMbConstruction (pCtx)) {- WelsLog (& (pCtx->sLogCtx), WELS_LOG_WARNING,
- "WelsTargetSliceConstruction():::MB(%d, %d) construction error. pCurSlice_type:%d",
- pCurLayer->iMbX, pCurLayer->iMbY, pCurSlice->eSliceType);
-
- return -1;
- }
-
- ++iCountNumMb;
- if (!pCurLayer->pMbCorrectlyDecodedFlag[iNextMbXyIndex]) { //already con-ed, overwrite- pCurLayer->pMbCorrectlyDecodedFlag[iNextMbXyIndex] = true;
- ++pCtx->iTotalNumMbRec;
- }
-
- if (pCtx->iTotalNumMbRec > iTotalMbTargetLayer) {- WelsLog (& (pCtx->sLogCtx), WELS_LOG_WARNING,
- "WelsTargetSliceConstruction():::pCtx->iTotalNumMbRec:%d, iTotalMbTargetLayer:%d",
- pCtx->iTotalNumMbRec, iTotalMbTargetLayer);
-
- return -1;
- }
-
- if (pSliceHeader->pPps->uiNumSliceGroups > 1) {- iNextMbXyIndex = FmoNextMb (pFmo, iNextMbXyIndex);
- } else {- ++iNextMbXyIndex;
- }
- if (-1 == iNextMbXyIndex || iNextMbXyIndex >= iTotalMbTargetLayer) { // slice group boundary or end of a frame- break;
- }
- pCurLayer->iMbX = iNextMbXyIndex % pCurLayer->iMbWidth;
- pCurLayer->iMbY = iNextMbXyIndex / pCurLayer->iMbWidth;
- pCurLayer->iMbXyIndex = iNextMbXyIndex;
- } while (1);
-
- pCtx->pDec->iWidthInPixel = iCurLayerWidth;
- pCtx->pDec->iHeightInPixel = iCurLayerHeight;
-
- if ((pCurSlice->eSliceType != I_SLICE) && (pCurSlice->eSliceType != P_SLICE))
- return 0;
-
- pDeblockMb = WelsDeblockingMb;
-
- if (1 == pSliceHeader->uiDisableDeblockingFilterIdc) {- return 0;//NO_SUPPORTED_FILTER_IDX
- } else {- WelsDeblockingFilterSlice (pCtx, pDeblockMb);
-
- }
- // any other filter_idc not supported here, 7/22/2010
-
- return 0;
-}
-
-int32_t WelsMbInterSampleConstruction (PWelsDecoderContext pCtx, PDqLayer pCurLayer,
- uint8_t* pDstY, uint8_t* pDstU, uint8_t* pDstV, int32_t iStrideL, int32_t iStrideC) {- int32_t iMbXy = pCurLayer->iMbXyIndex;
- int32_t i, iIndex, iOffset;
-
- WelsChromaDcIdct (pCurLayer->pScaledTCoeff[iMbXy] + 256); // 256 = 16*16
- WelsChromaDcIdct (pCurLayer->pScaledTCoeff[iMbXy] + 320); // 320 = 16*16 + 16*4
-
- for (i = 0; i < 16; i++) { //luma- iIndex = g_kuiMbCountScan4Idx[i];
- if (pCurLayer->pNzc[iMbXy][iIndex]) {- iOffset = ((iIndex >> 2) << 2) * iStrideL + ((iIndex % 4) << 2);
- pCtx->pIdctResAddPredFunc (pDstY + iOffset, iStrideL, pCurLayer->pScaledTCoeff[iMbXy] + (i << 4));
- }
- }
-
- for (i = 0; i < 4; i++) { //chroma- iIndex = g_kuiMbCountScan4Idx[i + 16]; //Cb
- if (pCurLayer->pNzc[iMbXy][iIndex] || * (pCurLayer->pScaledTCoeff[iMbXy] + ((i + 16) << 4))) {- iOffset = (((iIndex - 16) >> 2) << 2) * iStrideC + (((iIndex - 16) % 4) << 2);
- pCtx->pIdctResAddPredFunc (pDstU + iOffset, iStrideC, pCurLayer->pScaledTCoeff[iMbXy] + ((i + 16) << 4));
- }
-
- iIndex = g_kuiMbCountScan4Idx[i + 20]; //Cr
- if (pCurLayer->pNzc[iMbXy][iIndex] || * (pCurLayer->pScaledTCoeff[iMbXy] + ((i + 20) << 4))) {- iOffset = (((iIndex - 18) >> 2) << 2) * iStrideC + (((iIndex - 18) % 4) << 2);
- pCtx->pIdctResAddPredFunc (pDstV + iOffset, iStrideC , pCurLayer->pScaledTCoeff[iMbXy] + ((i + 20) << 4));
- }
- }
-
- return 0;
-}
-int32_t WelsMbInterConstruction (PWelsDecoderContext pCtx, PDqLayer pCurLayer) {- int32_t iMbX = pCurLayer->iMbX;
- int32_t iMbY = pCurLayer->iMbY;
- uint8_t* pDstY, *pDstCb, *pDstCr;
-
- int32_t iLumaStride = pCtx->pDec->iLinesize[0];
- int32_t iChromaStride = pCtx->pDec->iLinesize[1];
-
- pDstY = pCurLayer->pDec->pData[0] + ((iMbY * iLumaStride + iMbX) << 4);
- pDstCb = pCurLayer->pDec->pData[1] + ((iMbY * iChromaStride + iMbX) << 3);
- pDstCr = pCurLayer->pDec->pData[2] + ((iMbY * iChromaStride + iMbX) << 3);
-
- GetInterPred (pDstY, pDstCb, pDstCr, pCtx);
- WelsMbInterSampleConstruction (pCtx, pCurLayer, pDstY, pDstCb, pDstCr, iLumaStride, iChromaStride);
-
- pCtx->sBlockFunc.pWelsSetNonZeroCountFunc (
- pCurLayer->pNzc[pCurLayer->iMbXyIndex]); // set all none-zero nzc to 1; dbk can be opti!
- return 0;
-}
-
-void WelsLumaDcDequantIdct (int16_t* pBlock, int32_t iQp,PWelsDecoderContext pCtx) {- const int32_t kiQMul =pCtx->bUseScalingList? pCtx->pDequant_coeff4x4[0][iQp][0]>>4 :g_kuiDequantCoeff[iQp][0];
-#define STRIDE 16
- int32_t i;
- int32_t iTemp[16]; //FIXME check if this is a good idea
- int16_t* pBlk = pBlock;
- static const int32_t kiXOffset[4] = {0, STRIDE, STRIDE << 2, 5 * STRIDE};- static const int32_t kiYOffset[4] = {0, STRIDE << 1, STRIDE << 3, 10 * STRIDE};-
- for (i = 0; i < 4; i++) {- const int32_t kiOffset = kiYOffset[i];
- const int32_t kiX1 = kiOffset + kiXOffset[2];
- const int32_t kiX2 = STRIDE + kiOffset;
- const int32_t kiX3 = kiOffset + kiXOffset[3];
- const int32_t kiI4 = i << 2; // 4*i
- const int32_t kiZ0 = pBlk[kiOffset] + pBlk[kiX1];
- const int32_t kiZ1 = pBlk[kiOffset] - pBlk[kiX1];
- const int32_t kiZ2 = pBlk[kiX2] - pBlk[kiX3];
- const int32_t kiZ3 = pBlk[kiX2] + pBlk[kiX3];
-
- iTemp[kiI4] = kiZ0 + kiZ3;
- iTemp[1 + kiI4] = kiZ1 + kiZ2;
- iTemp[2 + kiI4] = kiZ1 - kiZ2;
- iTemp[3 + kiI4] = kiZ0 - kiZ3;
- }
-
- for (i = 0; i < 4; i++) {- const int32_t kiOffset = kiXOffset[i];
- const int32_t kiI4 = 4 + i;
- const int32_t kiZ0 = iTemp[i] + iTemp[4 + kiI4];
- const int32_t kiZ1 = iTemp[i] - iTemp[4 + kiI4];
- const int32_t kiZ2 = iTemp[kiI4] - iTemp[8 + kiI4];
- const int32_t kiZ3 = iTemp[kiI4] + iTemp[8 + kiI4];
-
- pBlk[kiOffset] = ((kiZ0 + kiZ3) * kiQMul + 2) >> 2; //FIXME think about merging this into decode_resdual
- pBlk[kiYOffset[1] + kiOffset] = ((kiZ1 + kiZ2) * kiQMul + 2) >> 2;
- pBlk[kiYOffset[2] + kiOffset] = ((kiZ1 - kiZ2) * kiQMul + 2) >> 2;
- pBlk[kiYOffset[3] + kiOffset] = ((kiZ0 - kiZ3) * kiQMul + 2) >> 2;
- }
-#undef STRIDE
-}
-
-int32_t WelsMbIntraPredictionConstruction (PWelsDecoderContext pCtx, PDqLayer pCurLayer, bool bOutput) {-//seems IPCM should not enter this path
- int32_t iMbXy = pCurLayer->iMbXyIndex;
-
- WelsFillRecNeededMbInfo (pCtx, bOutput, pCurLayer);
-
- if (IS_INTRA16x16 (pCurLayer->pMbType[iMbXy])) {- WelsLumaDcDequantIdct (pCurLayer->pScaledTCoeff[iMbXy], pCurLayer->pLumaQp[iMbXy]);
- RecI16x16Mb (iMbXy, pCtx, pCurLayer->pScaledTCoeff[iMbXy], pCurLayer);
-
- return 0;
- }
-
- if (IS_INTRA4x4 (pCurLayer->pMbType[iMbXy]))
- RecI4x4Mb (iMbXy, pCtx, pCurLayer->pScaledTCoeff[iMbXy], pCurLayer);
-
- return 0;
-}
-
-int32_t WelsMbInterPrediction (PWelsDecoderContext pCtx, PDqLayer pCurLayer) {- int32_t iMbX = pCurLayer->iMbX;
- int32_t iMbY = pCurLayer->iMbY;
- uint8_t* pDstY, *pDstCb, *pDstCr;
-
- int32_t iLumaStride = pCtx->pDec->iLinesize[0];
- int32_t iChromaStride = pCtx->pDec->iLinesize[1];
-
- pDstY = pCurLayer->pDec->pData[0] + ((iMbY * iLumaStride + iMbX) << 4);
- pDstCb = pCurLayer->pDec->pData[1] + ((iMbY * iChromaStride + iMbX) << 3);
- pDstCr = pCurLayer->pDec->pData[2] + ((iMbY * iChromaStride + iMbX) << 3);
-
- GetInterPred (pDstY, pDstCb, pDstCr, pCtx);
-
- return 0;
-}
-
-int32_t WelsTargetMbConstruction (PWelsDecoderContext pCtx) {- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- if (MB_TYPE_INTRA_PCM == pCurLayer->pMbType[pCurLayer->iMbXyIndex]) {- //already decoded and reconstructed when parsing
- return 0;
- } else if (IS_INTRA (pCurLayer->pMbType[pCurLayer->iMbXyIndex])) {- WelsMbIntraPredictionConstruction (pCtx, pCurLayer, 1);
- } else if (IS_INTER (pCurLayer->pMbType[pCurLayer->iMbXyIndex])) { //InterMB- if (0 == pCurLayer->pCbp[pCurLayer->iMbXyIndex]) { //uiCbp==0 include SKIP- WelsMbInterPrediction (pCtx, pCurLayer);
- } else {- WelsMbInterConstruction (pCtx, pCurLayer);
- }
- } else {- WelsLog (& (pCtx->sLogCtx), WELS_LOG_WARNING, "WelsTargetMbConstruction():::::Unknown MB type: %d",
- pCurLayer->pMbType[pCurLayer->iMbXyIndex]);
- return -1;
- }
-
- return 0;
-}
-
-void WelsChromaDcIdct (int16_t* pBlock) {- int32_t iStride = 32;
- int32_t iXStride = 16;
- int32_t iStride1 = iXStride + iStride;
- int16_t* pBlk = pBlock;
- int32_t iA, iB, iC, iD, iE;
-
- iA = pBlk[0];
- iB = pBlk[iXStride];
- iC = pBlk[iStride];
- iD = pBlk[iStride1];
-
- iE = iA - iB;
- iA += iB;
- iB = iC - iD;
- iC += iD;
-
- pBlk[0] = (iA + iC) >> 1;
- pBlk[iXStride] = (iE + iB) >> 1;
- pBlk[iStride] = (iA - iC) >> 1;
- pBlk[iStride1] = (iE - iB) >> 1;
-}
-
-void WelsMap4x4NeighToSampleNormal (PWelsNeighAvail pNeighAvail, int32_t* pSampleAvail) {- if (pNeighAvail->iLeftAvail) { //left- pSampleAvail[ 6] =
- pSampleAvail[12] =
- pSampleAvail[18] =
- pSampleAvail[24] = 1;
- }
- if (pNeighAvail->iLeftTopAvail) { //top_left- pSampleAvail[0] = 1;
- }
- if (pNeighAvail->iTopAvail) { //top- pSampleAvail[1] =
- pSampleAvail[2] =
- pSampleAvail[3] =
- pSampleAvail[4] = 1;
- }
- if (pNeighAvail->iRightTopAvail) { //top_right- pSampleAvail[5] = 1;
- }
-}
-
-void WelsMap4x4NeighToSampleConstrain1 (PWelsNeighAvail pNeighAvail, int32_t* pSampleAvail) {- if (pNeighAvail->iLeftAvail && IS_INTRA (pNeighAvail->iLeftType)) { //left- pSampleAvail[ 6] =
- pSampleAvail[12] =
- pSampleAvail[18] =
- pSampleAvail[24] = 1;
- }
- if (pNeighAvail->iLeftTopAvail && IS_INTRA (pNeighAvail->iLeftTopType)) { //top_left- pSampleAvail[0] = 1;
- }
- if (pNeighAvail->iTopAvail && IS_INTRA (pNeighAvail->iTopType)) { //top- pSampleAvail[1] =
- pSampleAvail[2] =
- pSampleAvail[3] =
- pSampleAvail[4] = 1;
- }
- if (pNeighAvail->iRightTopAvail && IS_INTRA (pNeighAvail->iRightTopType)) { //top_right- pSampleAvail[5] = 1;
- }
-}
-void WelsMap16x16NeighToSampleNormal (PWelsNeighAvail pNeighAvail, uint8_t* pSampleAvail) {- if (pNeighAvail->iLeftAvail) {- *pSampleAvail = (1 << 2);
- }
- if (pNeighAvail->iLeftTopAvail) {- *pSampleAvail |= (1 << 1);
- }
- if (pNeighAvail->iTopAvail) {- *pSampleAvail |= 1;
- }
-}
-
-void WelsMap16x16NeighToSampleConstrain1 (PWelsNeighAvail pNeighAvail, uint8_t* pSampleAvail) {- if (pNeighAvail->iLeftAvail && IS_INTRA (pNeighAvail->iLeftType)) {- *pSampleAvail = (1 << 2);
- }
- if (pNeighAvail->iLeftTopAvail && IS_INTRA (pNeighAvail->iLeftTopType)) {- *pSampleAvail |= (1 << 1);
- }
- if (pNeighAvail->iTopAvail && IS_INTRA (pNeighAvail->iTopType)) {- *pSampleAvail |= 1;
- }
-}
-
-int32_t ParseIntra4x4Mode (PWelsDecoderContext pCtx, PWelsNeighAvail pNeighAvail, int8_t* pIntraPredMode,
- PBitStringAux pBs,
- PDqLayer pCurDqLayer) {- int32_t iSampleAvail[5 * 6] = { 0 }; //initialize as 0- int32_t iMbXy = pCurDqLayer->iMbXyIndex;
- int32_t iFinalMode, i;
-
- uint8_t uiNeighAvail = 0;
- uint32_t uiCode;
- int32_t iCode;
- pCtx->pMap4x4NeighToSampleFunc (pNeighAvail, iSampleAvail);
- uiNeighAvail = (iSampleAvail[6] << 2) | (iSampleAvail[0] << 1) | (iSampleAvail[1]);
- for (i = 0; i < 16; i++) {- int32_t iPrevIntra4x4PredMode = 0;
- if (pCurDqLayer->sLayerInfo.pPps->bEntropyCodingModeFlag) {- WELS_READ_VERIFY (ParseIntraPredModeLumaCabac (pCtx, iCode));
- iPrevIntra4x4PredMode = iCode;
- } else {- WELS_READ_VERIFY (BsGetOneBit (pBs, &uiCode));
- iPrevIntra4x4PredMode = uiCode;
- }
- const int32_t kiPredMode = PredIntra4x4Mode (pIntraPredMode, i);
-
- int8_t iBestMode;
- if (pCurDqLayer->sLayerInfo.pPps->bEntropyCodingModeFlag) {- if (iPrevIntra4x4PredMode == -1)
- iBestMode = kiPredMode;
- else
- iBestMode = iPrevIntra4x4PredMode + (iPrevIntra4x4PredMode >= kiPredMode);
- } else {- if (iPrevIntra4x4PredMode) {- iBestMode = kiPredMode;
- } else {- WELS_READ_VERIFY (BsGetBits (pBs, 3, &uiCode));
- iBestMode = uiCode + ((int32_t) uiCode >= kiPredMode);
- }
- }
-
- iFinalMode = CheckIntra4x4PredMode (&iSampleAvail[0], &iBestMode, i);
- if (iFinalMode == ERR_INVALID_INTRA4X4_MODE) {- return ERR_INFO_INVALID_I4x4_PRED_MODE;
- }
-
- pCurDqLayer->pIntra4x4FinalMode[iMbXy][g_kuiScan4[i]] = iFinalMode;
-
- pIntraPredMode[g_kuiScan8[i]] = iBestMode;
-
- iSampleAvail[g_kuiCache30ScanIdx[i]] = 1;
- }
- ST32 (&pCurDqLayer->pIntraPredMode[iMbXy][0], LD32 (&pIntraPredMode[1 + 8 * 4]));
- pCurDqLayer->pIntraPredMode[iMbXy][4] = pIntraPredMode[4 + 8 * 1];
- pCurDqLayer->pIntraPredMode[iMbXy][5] = pIntraPredMode[4 + 8 * 2];
- pCurDqLayer->pIntraPredMode[iMbXy][6] = pIntraPredMode[4 + 8 * 3];
- if (pCurDqLayer->sLayerInfo.pPps->bEntropyCodingModeFlag) {- WELS_READ_VERIFY (ParseIntraPredModeChromaCabac (pCtx, uiNeighAvail, iCode));
- if (iCode > MAX_PRED_MODE_ID_CHROMA) {- return ERR_INFO_INVALID_I_CHROMA_PRED_MODE;
- }
- pCurDqLayer->pChromaPredMode[iMbXy] = iCode;
- } else {- WELS_READ_VERIFY (BsGetUe (pBs, &uiCode)); //intra_chroma_pred_mode
- if (uiCode > MAX_PRED_MODE_ID_CHROMA) {- return ERR_INFO_INVALID_I_CHROMA_PRED_MODE;
- }
- pCurDqLayer->pChromaPredMode[iMbXy] = uiCode;
- }
-
- if (-1 == pCurDqLayer->pChromaPredMode[iMbXy]
- || CheckIntraChromaPredMode (uiNeighAvail, &pCurDqLayer->pChromaPredMode[iMbXy])) {- return ERR_INFO_INVALID_I_CHROMA_PRED_MODE;
- }
-
- return ERR_NONE;
-}
-
-int32_t ParseIntra16x16Mode (PWelsDecoderContext pCtx, PWelsNeighAvail pNeighAvail, PBitStringAux pBs,
- PDqLayer pCurDqLayer) {- int32_t iMbXy = pCurDqLayer->iMbXyIndex;
- uint8_t uiNeighAvail = 0; //0x07 = 0 1 1 1, means left, top-left, top avail or not. (1: avail, 0: unavail)
- uint32_t uiCode;
- int32_t iCode;
- pCtx->pMap16x16NeighToSampleFunc (pNeighAvail, &uiNeighAvail);
-
- if (CheckIntra16x16PredMode (uiNeighAvail,
- &pCurDqLayer->pIntraPredMode[iMbXy][7])) { //invalid iPredMode, must stop decoding- return ERR_INFO_INVALID_I16x16_PRED_MODE;
- }
- if (pCurDqLayer->sLayerInfo.pPps->bEntropyCodingModeFlag) {- WELS_READ_VERIFY (ParseIntraPredModeChromaCabac (pCtx, uiNeighAvail, iCode));
- if (iCode > MAX_PRED_MODE_ID_CHROMA) {- return ERR_INFO_INVALID_I_CHROMA_PRED_MODE;
- }
- pCurDqLayer->pChromaPredMode[iMbXy] = iCode;
- } else {- WELS_READ_VERIFY (BsGetUe (pBs, &uiCode)); //intra_chroma_pred_mode
- if (uiCode > MAX_PRED_MODE_ID_CHROMA) {- return ERR_INFO_INVALID_I_CHROMA_PRED_MODE;
- }
- pCurDqLayer->pChromaPredMode[iMbXy] = uiCode;
- }
- if (-1 == pCurDqLayer->pChromaPredMode[iMbXy]
- || CheckIntraChromaPredMode (uiNeighAvail, &pCurDqLayer->pChromaPredMode[iMbXy])) {- return ERR_INFO_INVALID_I_CHROMA_PRED_MODE;
- }
-
- return ERR_NONE;
-}
-
-int32_t WelsDecodeMbCabacISliceBaseMode0 (PWelsDecoderContext pCtx, uint32_t& uiEosFlag) {- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PBitStringAux pBsAux = pCurLayer->pBitStringAux;
- PSlice pSlice = &pCurLayer->sLayerInfo.sSliceInLayer;
- PSliceHeader pSliceHeader = &pSlice->sSliceHeaderExt.sSliceHeader;
- SWelsNeighAvail sNeighAvail;
- int32_t iScanIdxStart = pSlice->sSliceHeaderExt.uiScanIdxStart;
- int32_t iScanIdxEnd = pSlice->sSliceHeaderExt.uiScanIdxEnd;
- int32_t iMbXy = pCurLayer->iMbXyIndex;
- int32_t i;
- uint32_t uiMbType = 0, uiCbp = 0, uiCbpLuma = 0, uiCbpChroma = 0;
-
- ENFORCE_STACK_ALIGN_1D (uint8_t, pNonZeroCount, 48, 16);
-
- pCurLayer->pInterPredictionDoneFlag[iMbXy] = 0;
- pCurLayer->pResidualPredFlag[iMbXy] = pSlice->sSliceHeaderExt.bDefaultResidualPredFlag;
- GetNeighborAvailMbType (&sNeighAvail, pCurLayer);
- WELS_READ_VERIFY (ParseMBTypeISliceCabac (pCtx, &sNeighAvail, uiMbType));
- if (uiMbType > 25) {- return ERR_INFO_INVALID_MB_TYPE;
- } else if (25 == uiMbType) { //I_PCM- WELS_READ_VERIFY (ParseIPCMInfoCabac (pCtx));
- pSlice->iLastDeltaQp = 0;
- WELS_READ_VERIFY (ParseEndOfSliceCabac (pCtx, uiEosFlag));
- if (uiEosFlag) {- RestoreCabacDecEngineToBS (pCtx->pCabacDecEngine, pCtx->pCurDqLayer->pBitStringAux);
- }
- return ERR_NONE;
- } else if (0 == uiMbType) { //I4x4- ENFORCE_STACK_ALIGN_1D (int8_t, pIntraPredMode, 48, 16);
- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA4x4;
- pCtx->pFillInfoCacheIntra4x4Func (&sNeighAvail, pNonZeroCount, pIntraPredMode, pCurLayer);
- WELS_READ_VERIFY (ParseIntra4x4Mode (pCtx, &sNeighAvail, pIntraPredMode, pBsAux, pCurLayer));
- //get uiCbp for I4x4
- WELS_READ_VERIFY (ParseCbpInfoCabac (pCtx, &sNeighAvail, uiCbp));
- pCurLayer->pCbp[iMbXy] = uiCbp;
- pSlice->iLastDeltaQp = uiCbp == 0 ? 0: pSlice->iLastDeltaQp;
- uiCbpChroma = uiCbp >> 4;
- uiCbpLuma = uiCbp & 15;
- } else { //I16x16;- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA16x16;
- pCurLayer->pIntraPredMode[iMbXy][7] = (uiMbType - 1) & 3;
- pCurLayer->pCbp[iMbXy] = g_kuiI16CbpTable[ (uiMbType - 1) >> 2];
- uiCbpChroma = pCurLayer->pCbp[iMbXy] >> 4;
- uiCbpLuma = pCurLayer->pCbp[iMbXy] & 15;
- WelsFillCacheNonZeroCount (&sNeighAvail, pNonZeroCount, pCurLayer);
- WELS_READ_VERIFY (ParseIntra16x16Mode (pCtx, &sNeighAvail, pBsAux, pCurLayer));
- }
-
- memset (pCurLayer->pScaledTCoeff[iMbXy], 0, 384 * sizeof (pCurLayer->pScaledTCoeff[iMbXy][0]));
- ST32 (&pCurLayer->pNzc[iMbXy][0], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][4], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][8], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][12], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][16], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][20], 0);
- pCurLayer->pCbfDc[iMbXy] = 0;
-
- if (pCurLayer->pCbp[iMbXy] == 0 && IS_INTRA4x4 (pCurLayer->pMbType[iMbXy])) {- pCurLayer->pLumaQp[iMbXy] = pSlice->iLastMbQp;
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 ((pCurLayer->pLumaQp[iMbXy] +
- pSliceHeader->pPps->iChromaQpIndexOffset), 0, 51)];
- }
-
- if (pCurLayer->pCbp[iMbXy] || MB_TYPE_INTRA16x16 == pCurLayer->pMbType[iMbXy]) {- int32_t iQpDelta, iId8x8, iId4x4;
- WELS_READ_VERIFY (ParseDeltaQpCabac (pCtx, iQpDelta));
- if (iQpDelta > 25 || iQpDelta < -26) {//out of iQpDelta range- return ERR_INFO_INVALID_QP;
- }
- pCurLayer->pLumaQp[iMbXy] = (pSlice->iLastMbQp + iQpDelta + 52) % 52; //update last_mb_qp
- pSlice->iLastMbQp = pCurLayer->pLumaQp[iMbXy];
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 ((pSlice->iLastMbQp +
- pSliceHeader->pPps->iChromaQpIndexOffset), 0, 51)];
- if (MB_TYPE_INTRA16x16 == pCurLayer->pMbType[iMbXy]) {- //step1: Luma DC
- WELS_READ_VERIFY (ParseResidualBlockCabac (&sNeighAvail, pNonZeroCount, pBsAux, 0, 16, g_kuiLumaDcZigzagScan,
- I16_LUMA_DC, pCurLayer->pScaledTCoeff[iMbXy], pCurLayer->pLumaQp[iMbXy], pCtx));
- //step2: Luma AC
- if (uiCbpLuma) {- for (i = 0; i < 16; i++) {- WELS_READ_VERIFY (ParseResidualBlockCabac (&sNeighAvail, pNonZeroCount, pBsAux, i,
- iScanIdxEnd - WELS_MAX (iScanIdxStart, 1) + 1, g_kuiZigzagScan + WELS_MAX (iScanIdxStart, 1), I16_LUMA_AC,
- pCurLayer->pScaledTCoeff[iMbXy] + (i << 4), pCurLayer->pLumaQp[iMbXy], pCtx));
- }
- ST32 (&pCurLayer->pNzc[iMbXy][0], LD32 (&pNonZeroCount[1 + 8 * 1]));
- ST32 (&pCurLayer->pNzc[iMbXy][4], LD32 (&pNonZeroCount[1 + 8 * 2]));
- ST32 (&pCurLayer->pNzc[iMbXy][8], LD32 (&pNonZeroCount[1 + 8 * 3]));
- ST32 (&pCurLayer->pNzc[iMbXy][12], LD32 (&pNonZeroCount[1 + 8 * 4]));
- } else { //pNonZeroCount = 0- ST32 (&pCurLayer->pNzc[iMbXy][0], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][4], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][8], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][12], 0);
- }
- } else { //non-MB_TYPE_INTRA16x16- for (iId8x8 = 0; iId8x8 < 4; iId8x8++) {- if (uiCbpLuma & (1 << iId8x8)) {- int32_t iIdx = (iId8x8 << 2);
- for (iId4x4 = 0; iId4x4 < 4; iId4x4++) {- //Luma (DC and AC decoding together)
- WELS_READ_VERIFY (ParseResidualBlockCabac (&sNeighAvail, pNonZeroCount, pBsAux, iIdx, iScanIdxEnd - iScanIdxStart + 1,
- g_kuiZigzagScan + iScanIdxStart, LUMA_DC_AC_INTRA, pCurLayer->pScaledTCoeff[iMbXy] + (iIdx << 4), pCurLayer->pLumaQp[iMbXy],
- pCtx));
- iIdx++;
- }
- } else {- ST16 (&pNonZeroCount[g_kCacheNzcScanIdx[ (iId8x8 << 2)]], 0);
- ST16 (&pNonZeroCount[g_kCacheNzcScanIdx[ (iId8x8 << 2) + 2]], 0);
- }
- }
- ST32 (&pCurLayer->pNzc[iMbXy][0], LD32 (&pNonZeroCount[1 + 8 * 1]));
- ST32 (&pCurLayer->pNzc[iMbXy][4], LD32 (&pNonZeroCount[1 + 8 * 2]));
- ST32 (&pCurLayer->pNzc[iMbXy][8], LD32 (&pNonZeroCount[1 + 8 * 3]));
- ST32 (&pCurLayer->pNzc[iMbXy][12], LD32 (&pNonZeroCount[1 + 8 * 4]));
- }
- int32_t iMBproperty;
- //chroma
- //step1: DC
- if (1 == uiCbpChroma || 2 == uiCbpChroma) {- //Cb Cr
- for ( i = 0;i<2;i++)
- {- iMBproperty = i ? CHROMA_DC_V : CHROMA_DC_U;
- WELS_READ_VERIFY (ParseResidualBlockCabac (&sNeighAvail, pNonZeroCount, pBsAux, 16 + (1 << 2), 4, g_kuiChromaDcScan,
- iMBproperty, pCurLayer->pScaledTCoeff[iMbXy] + 256 + (1 << 6), pCurLayer->pChromaQp[iMbXy], pCtx));
- }
- }
-
- //step2: AC
- if (2 == uiCbpChroma) {- for (i = 0; i < 2; i++) { //Cb Cr- iMBproperty = i ? CHROMA_AC_V : CHROMA_AC_U;
- int32_t iIdx = 16 + (i << 2);
- for (iId4x4 = 0; iId4x4 < 4; iId4x4++) {- WELS_READ_VERIFY (ParseResidualBlockCabac (&sNeighAvail, pNonZeroCount, pBsAux, iIdx,
- iScanIdxEnd - WELS_MAX (iScanIdxStart, 1) + 1, g_kuiZigzagScan + WELS_MAX (iScanIdxStart, 1), iMBproperty,
- pCurLayer->pScaledTCoeff[iMbXy] + (iIdx << 4), pCurLayer->pChromaQp[iMbXy], pCtx));
- iIdx++;
- }
- }
- ST16 (&pCurLayer->pNzc[iMbXy][16], LD16 (&pNonZeroCount[6 + 8 * 1]));
- ST16 (&pCurLayer->pNzc[iMbXy][20], LD16 (&pNonZeroCount[6 + 8 * 2]));
- ST16 (&pCurLayer->pNzc[iMbXy][18], LD16 (&pNonZeroCount[6 + 8 * 4]));
- ST16 (&pCurLayer->pNzc[iMbXy][22], LD16 (&pNonZeroCount[6 + 8 * 5]));
- } else {- ST16 (&pCurLayer->pNzc[iMbXy][16], 0);
- ST16 (&pCurLayer->pNzc[iMbXy][20], 0);
- ST16 (&pCurLayer->pNzc[iMbXy][18], 0);
- ST16 (&pCurLayer->pNzc[iMbXy][22], 0);
- }
- } else {- ST32 (&pCurLayer->pNzc[iMbXy][0], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][4], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][8], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][12], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][16], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][20], 0);
- }
-
- WELS_READ_VERIFY (ParseEndOfSliceCabac (pCtx, uiEosFlag));
- if (uiEosFlag) {- RestoreCabacDecEngineToBS (pCtx->pCabacDecEngine, pCtx->pCurDqLayer->pBitStringAux);
- }
- return ERR_NONE;
-}
-
-int32_t WelsDecodeMbCabacISlice (PWelsDecoderContext pCtx, PNalUnit pNalCur, uint32_t& uiEosFlag) {- WELS_READ_VERIFY (WelsDecodeMbCabacISliceBaseMode0 (pCtx, uiEosFlag));
- return ERR_NONE;
-}
-
-int32_t WelsDecodeMbCabacPSliceBaseMode0 (PWelsDecoderContext pCtx, PWelsNeighAvail pNeighAvail, uint32_t& uiEosFlag) {- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PBitStringAux pBsAux = pCurLayer->pBitStringAux;
- PSlice pSlice = &pCurLayer->sLayerInfo.sSliceInLayer;
- PSliceHeader pSliceHeader = &pSlice->sSliceHeaderExt.sSliceHeader;
-
- int32_t iScanIdxStart = pSlice->sSliceHeaderExt.uiScanIdxStart;
- int32_t iScanIdxEnd = pSlice->sSliceHeaderExt.uiScanIdxEnd;
- int32_t iMbXy = pCurLayer->iMbXyIndex;
- int32_t iMBproperty;
- int32_t i;
- uint32_t uiMbType = 0, uiCbp = 0, uiCbpLuma = 0, uiCbpChroma = 0;
-
- ENFORCE_STACK_ALIGN_1D (uint8_t, pNonZeroCount, 48, 16);
-
- pCurLayer->pInterPredictionDoneFlag[iMbXy] = 0;
-
- WELS_READ_VERIFY (ParseMBTypePSliceCabac (pCtx, pNeighAvail, uiMbType));
- // uiMbType = 4 is not allowded.
- if (uiMbType < 4) { //Inter mode- int16_t pMotionVector[LIST_A][30][MV_A];
- int16_t pMvdCache[LIST_A][30][MV_A];
- int8_t pRefIndex[LIST_A][30];
- pCurLayer->pMbType[iMbXy] = g_ksInterMbTypeInfo[uiMbType].iType;
- WelsFillCacheInterCabac (pNeighAvail, pNonZeroCount, pMotionVector, pMvdCache, pRefIndex, pCurLayer);
- WELS_READ_VERIFY (ParseInterMotionInfoCabac (pCtx, pNeighAvail, pNonZeroCount, pMotionVector, pMvdCache, pRefIndex));
- pCurLayer->pInterPredictionDoneFlag[iMbXy] = 0;
- } else { //Intra mode- uiMbType -= 5;
- if (uiMbType > 25) {- return ERR_INFO_INVALID_MB_TYPE;
- }
-
- if (25 == uiMbType) { //I_PCM- WELS_READ_VERIFY (ParseIPCMInfoCabac (pCtx));
- pSlice->iLastDeltaQp = 0;
- WELS_READ_VERIFY (ParseEndOfSliceCabac (pCtx, uiEosFlag));
- if (uiEosFlag) {- RestoreCabacDecEngineToBS (pCtx->pCabacDecEngine, pCtx->pCurDqLayer->pBitStringAux);
- }
- return ERR_NONE;
- } else { //normal Intra mode- if (0 == uiMbType) { //Intra4x4- ENFORCE_STACK_ALIGN_1D (int8_t, pIntraPredMode, 48, 16);
- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA4x4;
- pCtx->pFillInfoCacheIntra4x4Func (pNeighAvail, pNonZeroCount, pIntraPredMode, pCurLayer);
- WELS_READ_VERIFY (ParseIntra4x4Mode (pCtx, pNeighAvail, pIntraPredMode, pBsAux, pCurLayer));
- } else { //Intra16x16- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA16x16;
- pCurLayer->pIntraPredMode[iMbXy][7] = (uiMbType - 1) & 3;
- pCurLayer->pCbp[iMbXy] = g_kuiI16CbpTable[ (uiMbType - 1) >> 2];
- uiCbpChroma = pCurLayer->pCbp[iMbXy] >> 4;
- uiCbpLuma = pCurLayer->pCbp[iMbXy] & 15;
- WelsFillCacheNonZeroCount (pNeighAvail, pNonZeroCount, pCurLayer);
- WELS_READ_VERIFY (ParseIntra16x16Mode (pCtx, pNeighAvail, pBsAux, pCurLayer));
- }
- }
- }
-
- if (MB_TYPE_INTRA16x16 != pCurLayer->pMbType[iMbXy]) {- WELS_READ_VERIFY (ParseCbpInfoCabac (pCtx, pNeighAvail, uiCbp));
- pCurLayer->pCbp[iMbXy] = uiCbp;
- pSlice->iLastDeltaQp = uiCbp == 0 ? 0: pSlice->iLastDeltaQp;
- uiCbpChroma = pCurLayer->pCbp[iMbXy] >> 4;
- uiCbpLuma = pCurLayer->pCbp[iMbXy] & 15;
- }
-
- pCtx->sBlockFunc.pWelsBlockZero16x16Func (pCurLayer->pScaledTCoeff[iMbXy], 16);
- pCtx->sBlockFunc.pWelsBlockZero8x8Func (pCurLayer->pScaledTCoeff[iMbXy] + 256, 8);
- pCtx->sBlockFunc.pWelsBlockZero8x8Func (pCurLayer->pScaledTCoeff[iMbXy] + 256 + 64, 8);
-
- ST32 (&pCurLayer->pNzc[iMbXy][0], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][4], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][8], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][12], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][16], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][20], 0);
-
- if (pCurLayer->pCbp[iMbXy] || MB_TYPE_INTRA16x16 == pCurLayer->pMbType[iMbXy]) {- int32_t iQpDelta, iId8x8, iId4x4;
-
- WELS_READ_VERIFY (ParseDeltaQpCabac (pCtx, iQpDelta));
- pCurLayer->pLumaQp[iMbXy] = (pSlice->iLastMbQp + iQpDelta + 52) % 52; //update last_mb_qp
- pSlice->iLastMbQp = pCurLayer->pLumaQp[iMbXy];
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 (pSlice->iLastMbQp +
- pSliceHeader->pPps->iChromaQpIndexOffset, 0, 51)];
-
- if (MB_TYPE_INTRA16x16 == pCurLayer->pMbType[iMbXy]) {- //step1: Luma DC
- WELS_READ_VERIFY (ParseResidualBlockCabac (pNeighAvail, pNonZeroCount, pBsAux, 0, 16, g_kuiLumaDcZigzagScan,
- I16_LUMA_DC, pCurLayer->pScaledTCoeff[iMbXy], pCurLayer->pLumaQp[iMbXy], pCtx));
- //step2: Luma AC
- if (uiCbpLuma) {- for (i = 0; i < 16; i++) {- WELS_READ_VERIFY (ParseResidualBlockCabac (pNeighAvail, pNonZeroCount, pBsAux, i, iScanIdxEnd - WELS_MAX (iScanIdxStart,
- 1) + 1, g_kuiZigzagScan + WELS_MAX (iScanIdxStart, 1), I16_LUMA_AC, pCurLayer->pScaledTCoeff[iMbXy] + (i << 4),
- pCurLayer->pLumaQp[iMbXy], pCtx));
- }
- ST32 (&pCurLayer->pNzc[iMbXy][0], LD32 (&pNonZeroCount[1 + 8 * 1]));
- ST32 (&pCurLayer->pNzc[iMbXy][4], LD32 (&pNonZeroCount[1 + 8 * 2]));
- ST32 (&pCurLayer->pNzc[iMbXy][8], LD32 (&pNonZeroCount[1 + 8 * 3]));
- ST32 (&pCurLayer->pNzc[iMbXy][12], LD32 (&pNonZeroCount[1 + 8 * 4]));
- } else {- ST32 (&pCurLayer->pNzc[iMbXy][0], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][4], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][8], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][12], 0);
- }
- } else { //non-MB_TYPE_INTRA16x16- iMBproperty =(IS_INTRA(pCurLayer->pMbType[iMbXy]))? LUMA_DC_AC_INTRA:LUMA_DC_AC_INTER;
- for (iId8x8 = 0; iId8x8 < 4; iId8x8++) {- if (uiCbpLuma & (1 << iId8x8)) {- int32_t iIdx = (iId8x8 << 2);
- for (iId4x4 = 0; iId4x4 < 4; iId4x4++) {- //Luma (DC and AC decoding together)
- WELS_READ_VERIFY (ParseResidualBlockCabac (pNeighAvail, pNonZeroCount, pBsAux, iIdx, iScanIdxEnd - iScanIdxStart + 1,
- g_kuiZigzagScan + iScanIdxStart, iMBproperty, pCurLayer->pScaledTCoeff[iMbXy] + (iIdx << 4), pCurLayer->pLumaQp[iMbXy],
- pCtx));
- iIdx++;
- }
- } else {- ST16 (&pNonZeroCount[g_kCacheNzcScanIdx[iId8x8 << 2]], 0);
- ST16 (&pNonZeroCount[g_kCacheNzcScanIdx[ (iId8x8 << 2) + 2]], 0);
- }
- }
- ST32 (&pCurLayer->pNzc[iMbXy][0], LD32 (&pNonZeroCount[1 + 8 * 1]));
- ST32 (&pCurLayer->pNzc[iMbXy][4], LD32 (&pNonZeroCount[1 + 8 * 2]));
- ST32 (&pCurLayer->pNzc[iMbXy][8], LD32 (&pNonZeroCount[1 + 8 * 3]));
- ST32 (&pCurLayer->pNzc[iMbXy][12], LD32 (&pNonZeroCount[1 + 8 * 4]));
- }
-
- //chroma
- //step1: DC
- if (1 == uiCbpChroma || 2 == uiCbpChroma) {- for (i = 0; i < 2; i++) {- if(IS_INTRA(pCurLayer->pMbType[iMbXy]))
- iMBproperty = i ? CHROMA_DC_V : CHROMA_DC_U;
- else
- iMBproperty = i ? CHROMA_DC_V_INTER : CHROMA_DC_U_INTER;
-
- WELS_READ_VERIFY (ParseResidualBlockCabac (pNeighAvail, pNonZeroCount, pBsAux, 16 + (i << 2), 4, g_kuiChromaDcScan,
- iMBproperty, pCurLayer->pScaledTCoeff[iMbXy] + 256 + (i << 6), pCurLayer->pChromaQp[iMbXy], pCtx));
- }
- }
- //step2: AC
- if (2 == uiCbpChroma) {- for (i = 0; i < 2; i++) {- if(IS_INTRA(pCurLayer->pMbType[iMbXy]))
- iMBproperty = i ? CHROMA_AC_V : CHROMA_AC_U;
- else
- iMBproperty = i ? CHROMA_AC_V_INTER : CHROMA_AC_U_INTER;
- int32_t index = 16 + (i << 2);
- for (iId4x4 = 0; iId4x4 < 4; iId4x4++) {- WELS_READ_VERIFY (ParseResidualBlockCabac (pNeighAvail, pNonZeroCount, pBsAux, index,
- iScanIdxEnd - WELS_MAX (iScanIdxStart, 1) + 1, g_kuiZigzagScan + WELS_MAX (iScanIdxStart, 1),
- iMBproperty, pCurLayer->pScaledTCoeff[iMbXy] + (index << 4), pCurLayer->pChromaQp[iMbXy], pCtx));
- index++;
- }
- }
- ST16 (&pCurLayer->pNzc[iMbXy][16], LD16 (&pNonZeroCount[6 + 8 * 1]));
- ST16 (&pCurLayer->pNzc[iMbXy][20], LD16 (&pNonZeroCount[6 + 8 * 2]));
- ST16 (&pCurLayer->pNzc[iMbXy][18], LD16 (&pNonZeroCount[6 + 8 * 4]));
- ST16 (&pCurLayer->pNzc[iMbXy][22], LD16 (&pNonZeroCount[6 + 8 * 5]));
- } else {- ST32 (&pCurLayer->pNzc[iMbXy][16], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][20], 0);
- }
- } else {- pCurLayer->pLumaQp[iMbXy] = pSlice->iLastMbQp;
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 (pCurLayer->pLumaQp[iMbXy] +
- pSliceHeader->pPps->iChromaQpIndexOffset, 0, 51)];
- }
-
- WELS_READ_VERIFY (ParseEndOfSliceCabac (pCtx, uiEosFlag));
- if (uiEosFlag) {- RestoreCabacDecEngineToBS (pCtx->pCabacDecEngine, pCtx->pCurDqLayer->pBitStringAux);
- }
-
- return ERR_NONE;
-}
-
-int32_t WelsDecodeMbCabacPSlice (PWelsDecoderContext pCtx, PNalUnit pNalCur, uint32_t& uiEosFlag) {- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PSlice pSlice = &pCurLayer->sLayerInfo.sSliceInLayer;
- PSliceHeader pSliceHeader = &pSlice->sSliceHeaderExt.sSliceHeader;
- uint32_t uiCode;
- int32_t iMbXy = pCurLayer->iMbXyIndex;
- int32_t i;
- SWelsNeighAvail uiNeighAvail;
- pCurLayer->pCbp[iMbXy] = 0;
- pCurLayer->pCbfDc[iMbXy] = 0;
- pCurLayer->pChromaPredMode[iMbXy] = C_PRED_DC;
-
- GetNeighborAvailMbType (&uiNeighAvail, pCurLayer);
- WELS_READ_VERIFY (ParseSkipFlagCabac (pCtx, &uiNeighAvail, uiCode));
- if (uiCode) {- int16_t pMv[2] = {0};- pCurLayer->pMbType[iMbXy] = MB_TYPE_SKIP;
- ST32 (&pCurLayer->pNzc[iMbXy][0], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][4], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][8], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][12], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][16], 0);
- ST32 (&pCurLayer->pNzc[iMbXy][20], 0);
-
- pCurLayer->pInterPredictionDoneFlag[iMbXy] = 0;
- memset (pCurLayer->pRefIndex[0][iMbXy], 0, sizeof (int8_t) * 16);
-
- //predict mv
- PredPSkipMvFromNeighbor (pCurLayer, pMv);
- for (i = 0; i < 16; i++) {- ST32 (pCurLayer->pMv[0][iMbXy][i], * (uint32_t*)pMv);
- ST32 (pCurLayer->pMvd[0][iMbXy][i], 0);
- }
-
- if (!pSlice->sSliceHeaderExt.bDefaultResidualPredFlag) {- memset (pCurLayer->pScaledTCoeff[iMbXy], 0, 384 * sizeof (int16_t));
- }
-
- //reset rS
- pCurLayer->pLumaQp[iMbXy] = pSlice->iLastMbQp; //??????????????? dqaunt of previous mb
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 (pCurLayer->pLumaQp[iMbXy] +
- pSliceHeader->pPps->iChromaQpIndexOffset, 0, 51)];
-
- //for neighboring CABAC usage
- pSlice->iLastDeltaQp = 0;
-
- WELS_READ_VERIFY (ParseEndOfSliceCabac (pCtx, uiEosFlag));
-
- return ERR_NONE;
- }
-
- WELS_READ_VERIFY (WelsDecodeMbCabacPSliceBaseMode0 (pCtx, &uiNeighAvail, uiEosFlag));
- return ERR_NONE;
-}
-// Calculate deqaunt coeff scaling list value
-int32_t WelsCalcDeqCoeffScalingList(PWelsDecoderContext pCtx)
-{- if(pCtx->pSps->bSeqScalingMatrixPresentFlag || pCtx->pPps->bSeqScalingMatrixPresentFlag)
- {- pCtx->bUseScalingList = true;
- if(!pCtx->bDequant_coeff4x4_Init || (pCtx->iDequant_coeff_ppsid != pCtx->pPps->iPpsId))
- {- int i,q,x;
- for(i=0;i<6;i++)
- {- pCtx->pDequant_coeff4x4[i]=pCtx->pDequant_coeff_buffer4x4[i];
-
-
- for(q=0;q<51;q++)
- {- for(x=0;x<16;x++)
- {- pCtx->pDequant_coeff4x4[i][q][x]= pCtx->pPps->bSeqScalingMatrixPresentFlag? pCtx->pPps->iScalingList4x4[i][x]*g_kuiDequantCoeff[q][x&0x07]:pCtx->pSps->iScalingList4x4[i][x]*g_kuiDequantCoeff[q][x&0x07];
- }
- x=0;
-
- }
- q=0;
- }
-
- pCtx->bDequant_coeff4x4_Init = true;
- }
- }
- else
- pCtx->bUseScalingList = false;
-return ERR_NONE;
-}
-
-int32_t WelsDecodeSlice (PWelsDecoderContext pCtx, bool bFirstSliceInLayer, PNalUnit pNalCur) {- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PFmo pFmo = pCtx->pFmo;
- int32_t iRet;
- int32_t iNextMbXyIndex, iSliceIdc;
-
- PSlice pSlice = &pCurLayer->sLayerInfo.sSliceInLayer;
- PSliceHeaderExt pSliceHeaderExt = &pSlice->sSliceHeaderExt;
- PSliceHeader pSliceHeader = &pSliceHeaderExt->sSliceHeader;
- int32_t iMbX, iMbY;
- const int32_t kiCountNumMb = pSliceHeader->pSps->uiTotalMbCount; //need to be correct when fmo or multi slice
- uint32_t uiEosFlag = 0;
- PWelsDecMbFunc pDecMbFunc;
-
- pSlice->iTotalMbInCurSlice = 0; //initialize at the starting of slice decoding.
-
- if (pCtx->pPps->bEntropyCodingModeFlag) {- if (pSlice->sSliceHeaderExt.bAdaptiveMotionPredFlag ||
- pSlice->sSliceHeaderExt.bAdaptiveBaseModeFlag ||
- pSlice->sSliceHeaderExt.bAdaptiveResidualPredFlag) {- WelsLog (& (pCtx->sLogCtx), WELS_LOG_ERROR,
- "WelsDecodeSlice()::::ILP flag exist, not supported with CABAC enabled!");
- pCtx->iErrorCode |= dsBitstreamError;
- return dsBitstreamError;
- }
- if (P_SLICE == pSliceHeader->eSliceType)
- pDecMbFunc = WelsDecodeMbCabacPSlice;
- else //I_SLICE. B_SLICE not supported now
- pDecMbFunc = WelsDecodeMbCabacISlice;
- } else {- if (P_SLICE == pSliceHeader->eSliceType) {- pDecMbFunc = WelsDecodeMbCavlcPSlice;
- } else { //I_SLICE- pDecMbFunc = WelsDecodeMbCavlcISlice;
- }
- }
-
- if (pSliceHeader->pPps->bConstainedIntraPredFlag) {- pCtx->pFillInfoCacheIntra4x4Func = WelsFillCacheConstrain1Intra4x4;
- pCtx->pMap4x4NeighToSampleFunc = WelsMap4x4NeighToSampleConstrain1;
- pCtx->pMap16x16NeighToSampleFunc = WelsMap16x16NeighToSampleConstrain1;
- } else {- pCtx->pFillInfoCacheIntra4x4Func = WelsFillCacheConstrain0Intra4x4;
- pCtx->pMap4x4NeighToSampleFunc = WelsMap4x4NeighToSampleNormal;
- pCtx->pMap16x16NeighToSampleFunc = WelsMap16x16NeighToSampleNormal;
- }
-
- pCtx->eSliceType = pSliceHeader->eSliceType;
- if (pCurLayer->sLayerInfo.pPps->bEntropyCodingModeFlag == 1) {- int32_t iQp = pSlice->sSliceHeaderExt.sSliceHeader.iSliceQp;
- int32_t iCabacInitIdc = pSlice->sSliceHeaderExt.sSliceHeader.iCabacInitIdc;
- WelsCabacContextInit (pCtx, pSlice->eSliceType, iCabacInitIdc, iQp);
- //InitCabacCtx (pCtx->pCabacCtx, pSlice->eSliceType, iCabacInitIdc, iQp);
- pSlice->iLastDeltaQp = 0;
- WELS_READ_VERIFY (InitCabacDecEngineFromBS (pCtx->pCabacDecEngine, pCtx->pCurDqLayer->pBitStringAux));
- }
- //try to calculate the dequant_coeff
- WelsCalcDeqCoeffScalingList(pCtx);
-
- iNextMbXyIndex = pSliceHeader->iFirstMbInSlice;
- iMbX = iNextMbXyIndex % pCurLayer->iMbWidth;
- iMbY = iNextMbXyIndex / pCurLayer->iMbWidth; // error is introduced by multiple slices case, 11/23/2009
- pSlice->iMbSkipRun = -1;
- iSliceIdc = (pSliceHeader->iFirstMbInSlice << 7) + pCurLayer->uiLayerDqId;
-
- pCurLayer->iMbX = iMbX;
- pCurLayer->iMbY = iMbY;
- pCurLayer->iMbXyIndex = iNextMbXyIndex;
-
- do {- if ((-1 == iNextMbXyIndex) || (iNextMbXyIndex >= kiCountNumMb)) { // slice group boundary or end of a frame- break;
- }
-
- pCurLayer->pSliceIdc[iNextMbXyIndex] = iSliceIdc;
- iRet = pDecMbFunc (pCtx, pNalCur, uiEosFlag);
-
- if (iRet != ERR_NONE) {- return iRet;
- }
-
- ++pSlice->iTotalMbInCurSlice;
- if (uiEosFlag) { //end of slice- break;
- }
- if (pSliceHeader->pPps->uiNumSliceGroups > 1) {- iNextMbXyIndex = FmoNextMb (pFmo, iNextMbXyIndex);
- } else {- ++iNextMbXyIndex;
- }
- iMbX = iNextMbXyIndex % pCurLayer->iMbWidth;
- iMbY = iNextMbXyIndex / pCurLayer->iMbWidth;
- pCurLayer->iMbX = iMbX;
- pCurLayer->iMbY = iMbY;
- pCurLayer->iMbXyIndex = iNextMbXyIndex;
- } while (1);
-
- return ERR_NONE;
-}
-
-int32_t WelsActualDecodeMbCavlcISlice (PWelsDecoderContext pCtx) {- SVlcTable* pVlcTable = &pCtx->sVlcTable;
- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PBitStringAux pBs = pCurLayer->pBitStringAux;
- PSlice pSlice = &pCurLayer->sLayerInfo.sSliceInLayer;
- PSliceHeader pSliceHeader = &pSlice->sSliceHeaderExt.sSliceHeader;
-
- SWelsNeighAvail sNeighAvail;
-
- int32_t iScanIdxStart = pSlice->sSliceHeaderExt.uiScanIdxStart;
- int32_t iScanIdxEnd = pSlice->sSliceHeaderExt.uiScanIdxEnd;
-
- int32_t iMbX = pCurLayer->iMbX;
- int32_t iMbY = pCurLayer->iMbY;
- const int32_t iMbXy = pCurLayer->iMbXyIndex;
- int8_t* pNzc = pCurLayer->pNzc[iMbXy];
- int32_t i;
- uint32_t uiMbType = 0, uiCbp = 0, uiCbpL = 0, uiCbpC = 0;
- uint32_t uiCode;
- int32_t iCode;
-
- ENFORCE_STACK_ALIGN_1D (uint8_t, pNonZeroCount, 48, 16);
- GetNeighborAvailMbType (&sNeighAvail, pCurLayer);
- pCurLayer->pInterPredictionDoneFlag[iMbXy] = 0;
- pCurLayer->pResidualPredFlag[iMbXy] = pSlice->sSliceHeaderExt.bDefaultResidualPredFlag;
-
- WELS_READ_VERIFY (BsGetUe (pBs, &uiCode)); //uiMbType
- uiMbType = uiCode;
- if (uiMbType > 25) {- return ERR_INFO_INVALID_MB_TYPE;
- }
-
- if (25 == uiMbType) {- int32_t iDecStrideL = pCurLayer->pDec->iLinesize[0];
- int32_t iDecStrideC = pCurLayer->pDec->iLinesize[1];
-
- int32_t iOffsetL = (iMbX + iMbY * iDecStrideL) << 4;
- int32_t iOffsetC = (iMbX + iMbY * iDecStrideC) << 3;
-
- uint8_t* pDecY = pCurLayer->pDec->pData[0] + iOffsetL;
- uint8_t* pDecU = pCurLayer->pDec->pData[1] + iOffsetC;
- uint8_t* pDecV = pCurLayer->pDec->pData[2] + iOffsetC;
-
- uint8_t* pTmpBsBuf;
- int32_t iMBproperty;
-
- int32_t i;
- int32_t iCopySizeY = (sizeof (uint8_t) << 4);
- int32_t iCopySizeUV = (sizeof (uint8_t) << 3);
-
- int32_t iIndex = ((-pBs->iLeftBits) >> 3) + 2;
-
- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA_PCM;
-
- //step 1: locating bit-stream pointer [must align into integer byte]
- pBs->pCurBuf -= iIndex;
-
- //step 2: copy pixel from bit-stream into fdec [reconstruction]
- pTmpBsBuf = pBs->pCurBuf;
- for (i = 0; i < 16; i++) { //luma- memcpy (pDecY , pTmpBsBuf, iCopySizeY);
- pDecY += iDecStrideL;
- pTmpBsBuf += 16;
- }
- for (i = 0; i < 8; i++) { //cb- memcpy (pDecU, pTmpBsBuf, iCopySizeUV);
- pDecU += iDecStrideC;
- pTmpBsBuf += 8;
- }
- for (i = 0; i < 8; i++) { //cr- memcpy (pDecV, pTmpBsBuf, iCopySizeUV);
- pDecV += iDecStrideC;
- pTmpBsBuf += 8;
- }
-
- pBs->pCurBuf += 384;
-
- //step 3: update QP and pNonZeroCount
- pCurLayer->pLumaQp[iMbXy] = 0;
- pCurLayer->pChromaQp[iMbXy] = 0;
- memset (pNzc, 16, sizeof (pCurLayer->pNzc[iMbXy])); //Rec. 9.2.1 for PCM, nzc=16
- WELS_READ_VERIFY(InitReadBits (pBs, 0));
- return 0;
- } else if (0 == uiMbType) { //reference to JM- ENFORCE_STACK_ALIGN_1D (int8_t, pIntraPredMode, 48, 16);
- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA4x4;
- pCtx->pFillInfoCacheIntra4x4Func (&sNeighAvail, pNonZeroCount, pIntraPredMode, pCurLayer);
- WELS_READ_VERIFY (ParseIntra4x4Mode (pCtx, &sNeighAvail, pIntraPredMode, pBs, pCurLayer));
-
- //uiCbp
- WELS_READ_VERIFY (BsGetUe (pBs, &uiCode)); //coded_block_pattern
- uiCbp = uiCode;
- //G.9.1 Alternative parsing process for coded pBlock pattern
- if (uiCbp > 47)
- return ERR_INFO_INVALID_CBP;
-
- uiCbp = g_kuiIntra4x4CbpTable[uiCbp];
-
- pCurLayer->pCbp[iMbXy] = uiCbp;
- uiCbpC = uiCbp >> 4;
- uiCbpL = uiCbp & 15;
- } else { //I_PCM exclude, we can ignore it- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA16x16;
- pCurLayer->pIntraPredMode[iMbXy][7] = (uiMbType - 1) & 3;
- pCurLayer->pCbp[iMbXy] = g_kuiI16CbpTable[ (uiMbType - 1) >> 2];
- uiCbpC = pCurLayer->pCbp[iMbXy] >> 4;
- uiCbpL = pCurLayer->pCbp[iMbXy] & 15;
- WelsFillCacheNonZeroCount (&sNeighAvail, pNonZeroCount, pCurLayer);
- WELS_READ_VERIFY (ParseIntra16x16Mode (pCtx, &sNeighAvail, pBs, pCurLayer));
- }
-
- memset (pCurLayer->pScaledTCoeff[iMbXy], 0, 384 * sizeof (pCurLayer->pScaledTCoeff[iMbXy][0]));
- ST32A4 (&pNzc[0], 0);
- ST32A4 (&pNzc[4], 0);
- ST32A4 (&pNzc[8], 0);
- ST32A4 (&pNzc[12], 0);
- ST32A4 (&pNzc[16], 0);
- ST32A4 (&pNzc[20], 0);
-
- if (pCurLayer->pCbp[iMbXy] == 0 && IS_INTRA4x4 (pCurLayer->pMbType[iMbXy])) {- pCurLayer->pLumaQp[iMbXy] = pSlice->iLastMbQp;
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 (pCurLayer->pLumaQp[iMbXy] +
- pSliceHeader->pPps->iChromaQpIndexOffset, 0, 51)];
-
- }
-
- if (pCurLayer->pCbp[iMbXy] || MB_TYPE_INTRA16x16 == pCurLayer->pMbType[iMbXy]) {- int32_t iQpDelta, iId8x8, iId4x4;
-
- WELS_READ_VERIFY (BsGetSe (pBs, &iCode)); //mb_qp_delta
- iQpDelta = iCode;
-
- if (iQpDelta > 25 || iQpDelta < -26) { //out of iQpDelta range- return ERR_INFO_INVALID_QP;
- }
-
- pCurLayer->pLumaQp[iMbXy] = (pSlice->iLastMbQp + iQpDelta + 52) % 52; //update last_mb_qp
- pSlice->iLastMbQp = pCurLayer->pLumaQp[iMbXy];
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 (pSlice->iLastMbQp +
- pSliceHeader->pPps->iChromaQpIndexOffset, 0,
- 51)];
-
-
- BsStartCavlc (pBs);
-
- if (MB_TYPE_INTRA16x16 == pCurLayer->pMbType[iMbXy]) {- //step1: Luma DC
- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs, 0, 16,
- g_kuiLumaDcZigzagScan, I16_LUMA_DC, pCurLayer->pScaledTCoeff[iMbXy], pCurLayer->pLumaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- //step2: Luma AC
- if (uiCbpL) {- for (i = 0; i < 16; i++) {- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs, i,
- iScanIdxEnd - WELS_MAX (iScanIdxStart, 1) + 1, g_kuiZigzagScan + WELS_MAX (iScanIdxStart, 1),
- I16_LUMA_AC, pCurLayer->pScaledTCoeff[iMbXy] + (i << 4), pCurLayer->pLumaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- }
- ST32A4 (&pNzc[0], LD32 (&pNonZeroCount[1 + 8 * 1]));
- ST32A4 (&pNzc[4], LD32 (&pNonZeroCount[1 + 8 * 2]));
- ST32A4 (&pNzc[8], LD32 (&pNonZeroCount[1 + 8 * 3]));
- ST32A4 (&pNzc[12], LD32 (&pNonZeroCount[1 + 8 * 4]));
- }
- } else { //non-MB_TYPE_INTRA16x16- for (iId8x8 = 0; iId8x8 < 4; iId8x8++) {- if (uiCbpL & (1 << iId8x8)) {- int32_t iIndex = (iId8x8 << 2);
- for (iId4x4 = 0; iId4x4 < 4; iId4x4++) {- //Luma (DC and AC decoding together)
- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs, iIndex,
- iScanIdxEnd - iScanIdxStart + 1, g_kuiZigzagScan + iScanIdxStart,
- LUMA_DC_AC_INTRA, pCurLayer->pScaledTCoeff[iMbXy] + (iIndex << 4), pCurLayer->pLumaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- iIndex++;
- }
- } else {- ST16 (&pNonZeroCount[g_kuiCache48CountScan4Idx[ (iId8x8 << 2)]], 0);
- ST16 (&pNonZeroCount[g_kuiCache48CountScan4Idx[ (iId8x8 << 2) + 2]], 0);
- }
- }
- ST32A4 (&pNzc[0], LD32 (&pNonZeroCount[1 + 8 * 1]));
- ST32A4 (&pNzc[4], LD32 (&pNonZeroCount[1 + 8 * 2]));
- ST32A4 (&pNzc[8], LD32 (&pNonZeroCount[1 + 8 * 3]));
- ST32A4 (&pNzc[12], LD32 (&pNonZeroCount[1 + 8 * 4]));
- }
-
- //chroma
- //step1: DC
- if (1 == uiCbpC || 2 == uiCbpC) {- for (i = 0; i < 2; i++) { //Cb Cr- iMBproperty = i ? CHROMA_DC_V : CHROMA_DC_U;
- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs,
- 16 + (i << 2), 4, g_kuiChromaDcScan, CHROMA_DC, pCurLayer->pScaledTCoeff[iMbXy] + 256 + (i << 6),
- pCurLayer->pChromaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- }
- }
-
- //step2: AC
- if (2 == uiCbpC) {- for (i = 0; i < 2; i++) { //Cb Cr- iMBproperty = i? CHROMA_AC_V : CHROMA_AC_U;
- int32_t iIndex = 16 + (i << 2);
- for (iId4x4 = 0; iId4x4 < 4; iId4x4++) {- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs, iIndex,
- iScanIdxEnd - WELS_MAX (iScanIdxStart, 1) + 1, g_kuiZigzagScan + WELS_MAX (iScanIdxStart, 1),
- CHROMA_AC, pCurLayer->pScaledTCoeff[iMbXy] + (iIndex << 4), pCurLayer->pChromaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- iIndex++;
- }
- }
- ST16A2 (&pNzc[16], LD16A2 (&pNonZeroCount[6 + 8 * 1]));
- ST16A2 (&pNzc[20], LD16A2 (&pNonZeroCount[6 + 8 * 2]));
- ST16A2 (&pNzc[18], LD16A2 (&pNonZeroCount[6 + 8 * 4]));
- ST16A2 (&pNzc[22], LD16A2 (&pNonZeroCount[6 + 8 * 5]));
- }
- BsEndCavlc (pBs);
- }
-
- return 0;
-}
-
-int32_t WelsDecodeMbCavlcISlice (PWelsDecoderContext pCtx, PNalUnit pNalCur, uint32_t& uiEosFlag) {- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PBitStringAux pBs = pCurLayer->pBitStringAux;
- PSliceHeaderExt pSliceHeaderExt = &pCurLayer->sLayerInfo.sSliceInLayer.sSliceHeaderExt;
- int32_t iBaseModeFlag;
- int32_t iRet = 0; //should have the return value to indicate decoding error or not, It's NECESSARY--2010.4.15
- uint32_t uiCode;
- intX_t iUsedBits;
- if (pSliceHeaderExt->bAdaptiveBaseModeFlag == 1) {- WELS_READ_VERIFY (BsGetOneBit (pBs, &uiCode)); //base_mode_flag
- iBaseModeFlag = uiCode;
- } else {- iBaseModeFlag = pSliceHeaderExt->bDefaultBaseModeFlag;
- }
- if (!iBaseModeFlag) {- iRet = WelsActualDecodeMbCavlcISlice (pCtx);
- } else {- WelsLog (& (pCtx->sLogCtx), WELS_LOG_WARNING, "iBaseModeFlag (%d) != 0, inter-layer prediction not supported.",
- iBaseModeFlag);
- return GENERATE_ERROR_NO (ERR_LEVEL_SLICE_HEADER, ERR_INFO_UNSUPPORTED_ILP);
- }
- if (iRet) { //occur error when parsing, MUST STOP decoding- return iRet;
- }
-
- // check whether there is left bits to read next time in case multiple slices
- iUsedBits = ((pBs->pCurBuf - pBs->pStartBuf) << 3) - (16 - pBs->iLeftBits);
- // sub 1, for stop bit
- if ((iUsedBits == (pBs->iBits - 1)) && (0 >= pCurLayer->sLayerInfo.sSliceInLayer.iMbSkipRun)) { // slice boundary- uiEosFlag = 1;
- }
- if (iUsedBits > (pBs->iBits -
- 1)) { //When BS incomplete, as long as find it, SHOULD stop decoding to avoid mosaic or crash.- WelsLog (& (pCtx->sLogCtx), WELS_LOG_WARNING,
- "WelsDecodeMbCavlcISlice()::::pBs incomplete, iUsedBits:%"PRId64" > pBs->iBits:%d, MUST stop decoding.",
- (int64_t) iUsedBits, pBs->iBits);
- return -1;
- }
- return 0;
-}
-
-int32_t WelsActualDecodeMbCavlcPSlice (PWelsDecoderContext pCtx) {- SVlcTable* pVlcTable = &pCtx->sVlcTable;
- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PBitStringAux pBs = pCurLayer->pBitStringAux;
- PSlice pSlice = &pCurLayer->sLayerInfo.sSliceInLayer;
- PSliceHeader pSliceHeader = &pSlice->sSliceHeaderExt.sSliceHeader;
-
- int32_t iScanIdxStart = pSlice->sSliceHeaderExt.uiScanIdxStart;
- int32_t iScanIdxEnd = pSlice->sSliceHeaderExt.uiScanIdxEnd;
-
- SWelsNeighAvail sNeighAvail;
- int32_t iMbX = pCurLayer->iMbX;
- int32_t iMbY = pCurLayer->iMbY;
- const int32_t iMbXy = pCurLayer->iMbXyIndex;
- int8_t* pNzc = pCurLayer->pNzc[iMbXy];
- int32_t i;
- uint32_t uiMbType = 0, uiCbp = 0, uiCbpL = 0, uiCbpC = 0;
- uint32_t uiCode;
- int32_t iCode;
- int32_t iMBproperty;
-
- GetNeighborAvailMbType (&sNeighAvail, pCurLayer);
- ENFORCE_STACK_ALIGN_1D (uint8_t, pNonZeroCount, 48, 16);
- pCurLayer->pInterPredictionDoneFlag[iMbXy] = 0;//2009.10.23
- WELS_READ_VERIFY (BsGetUe (pBs, &uiCode)); //uiMbType
- uiMbType = uiCode;
- if (uiMbType < 5) { //inter MB type- int16_t iMotionVector[LIST_A][30][MV_A];
- int8_t iRefIndex[LIST_A][30];
- pCurLayer->pMbType[iMbXy] = g_ksInterMbTypeInfo[uiMbType].iType;
- WelsFillCacheInter (&sNeighAvail, pNonZeroCount, iMotionVector, iRefIndex, pCurLayer);
- if (ParseInterInfo (pCtx, iMotionVector, iRefIndex, pBs)) {- return -1;//abnormal
- }
-
- if (pSlice->sSliceHeaderExt.bAdaptiveResidualPredFlag == 1) {- WELS_READ_VERIFY (BsGetOneBit (pBs, &uiCode)); //residual_prediction_flag
- pCurLayer->pResidualPredFlag[iMbXy] = uiCode;
- } else {- pCurLayer->pResidualPredFlag[iMbXy] = pSlice->sSliceHeaderExt.bDefaultResidualPredFlag;
- }
-
- if (pCurLayer->pResidualPredFlag[iMbXy] == 0) {- pCurLayer->pInterPredictionDoneFlag[iMbXy] = 0;
- } else {- WelsLog (& (pCtx->sLogCtx), WELS_LOG_WARNING, "residual_pred_flag = 1 not supported.");
- return -1;
- }
- } else { //intra MB type- uiMbType -= 5;
- if (uiMbType > 25) {- return ERR_INFO_INVALID_MB_TYPE;
- }
-
- if (25 == uiMbType) {- int32_t iDecStrideL = pCurLayer->pDec->iLinesize[0];
- int32_t iDecStrideC = pCurLayer->pDec->iLinesize[1];
-
- int32_t iOffsetL = (iMbX + iMbY * iDecStrideL) << 4;
- int32_t iOffsetC = (iMbX + iMbY * iDecStrideC) << 3;
-
- uint8_t* pDecY = pCurLayer->pDec->pData[0] + iOffsetL;
- uint8_t* pDecU = pCurLayer->pDec->pData[1] + iOffsetC;
- uint8_t* pDecV = pCurLayer->pDec->pData[2] + iOffsetC;
-
- uint8_t* pTmpBsBuf;
-
- int32_t i;
- int32_t iCopySizeY = (sizeof (uint8_t) << 4);
- int32_t iCopySizeUV = (sizeof (uint8_t) << 3);
-
- int32_t iIndex = ((-pBs->iLeftBits) >> 3) + 2;
-
- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA_PCM;
-
- //step 1: locating bit-stream pointer [must align into integer byte]
- pBs->pCurBuf -= iIndex;
-
- //step 2: copy pixel from bit-stream into fdec [reconstruction]
- pTmpBsBuf = pBs->pCurBuf;
- for (i = 0; i < 16; i++) { //luma- memcpy (pDecY , pTmpBsBuf, iCopySizeY);
- pDecY += iDecStrideL;
- pTmpBsBuf += 16;
- }
-
- for (i = 0; i < 8; i++) { //cb- memcpy (pDecU, pTmpBsBuf, iCopySizeUV);
- pDecU += iDecStrideC;
- pTmpBsBuf += 8;
- }
- for (i = 0; i < 8; i++) { //cr- memcpy (pDecV, pTmpBsBuf, iCopySizeUV);
- pDecV += iDecStrideC;
- pTmpBsBuf += 8;
- }
-
- pBs->pCurBuf += 384;
-
- //step 3: update QP and pNonZeroCount
- pCurLayer->pLumaQp[iMbXy] = 0;
- pCurLayer->pChromaQp[iMbXy] = 0;
- //Rec. 9.2.1 for PCM, nzc=16
- ST32A4 (&pNzc[0], 0x10101010);
- ST32A4 (&pNzc[4], 0x10101010);
- ST32A4 (&pNzc[8], 0x10101010);
- ST32A4 (&pNzc[12], 0x10101010);
- ST32A4 (&pNzc[16], 0x10101010);
- ST32A4 (&pNzc[20], 0x10101010);
- WELS_READ_VERIFY (InitReadBits (pBs, 0));
- return 0;
- } else {- if (0 == uiMbType) {- ENFORCE_STACK_ALIGN_1D (int8_t, pIntraPredMode, 48, 16);
- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA4x4;
- pCtx->pFillInfoCacheIntra4x4Func (&sNeighAvail, pNonZeroCount, pIntraPredMode, pCurLayer);
- if (ParseIntra4x4Mode (pCtx, &sNeighAvail, pIntraPredMode, pBs, pCurLayer)) {- return -1;
- }
- } else { //I_PCM exclude, we can ignore it- pCurLayer->pMbType[iMbXy] = MB_TYPE_INTRA16x16;
- pCurLayer->pIntraPredMode[iMbXy][7] = (uiMbType - 1) & 3;
- pCurLayer->pCbp[iMbXy] = g_kuiI16CbpTable[ (uiMbType - 1) >> 2];
- uiCbpC = pCurLayer->pCbp[iMbXy] >> 4;
- uiCbpL = pCurLayer->pCbp[iMbXy] & 15;
- WelsFillCacheNonZeroCount (&sNeighAvail, pNonZeroCount, pCurLayer);
- if (ParseIntra16x16Mode (pCtx, &sNeighAvail, pBs, pCurLayer)) {- return -1;
- }
- }
- }
- }
-
- if (MB_TYPE_INTRA16x16 != pCurLayer->pMbType[iMbXy]) {- WELS_READ_VERIFY (BsGetUe (pBs, &uiCode)); //coded_block_pattern
- uiCbp = uiCode;
- {- if (uiCbp > 47)
- return ERR_INFO_INVALID_CBP;
-
- if (MB_TYPE_INTRA4x4 == pCurLayer->pMbType[iMbXy]) {- uiCbp = g_kuiIntra4x4CbpTable[uiCbp];
- } else //inter
- uiCbp = g_kuiInterCbpTable[uiCbp];
- }
-
- pCurLayer->pCbp[iMbXy] = uiCbp;
- uiCbpC = pCurLayer->pCbp[iMbXy] >> 4;
- uiCbpL = pCurLayer->pCbp[iMbXy] & 15;
- }
-
- memset (pCurLayer->pScaledTCoeff[iMbXy], 0, MB_COEFF_LIST_SIZE * sizeof (int16_t));
-
- ST32A4 (&pNzc[0], 0);
- ST32A4 (&pNzc[4], 0);
- ST32A4 (&pNzc[8], 0);
- ST32A4 (&pNzc[12], 0);
- ST32A4 (&pNzc[16], 0);
- ST32A4 (&pNzc[20], 0);
- if (pCurLayer->pCbp[iMbXy] == 0 && !IS_INTRA16x16 (pCurLayer->pMbType[iMbXy]) && !IS_I_BL (pCurLayer->pMbType[iMbXy])) {- pCurLayer->pLumaQp[iMbXy] = pSlice->iLastMbQp;
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 (pCurLayer->pLumaQp[iMbXy] +
- pSliceHeader->pPps->iChromaQpIndexOffset, 0, 51)];
- }
-
- if (pCurLayer->pCbp[iMbXy] || MB_TYPE_INTRA16x16 == pCurLayer->pMbType[iMbXy]) {- int32_t iQpDelta, iId8x8, iId4x4;
-
- WELS_READ_VERIFY (BsGetSe (pBs, &iCode)); //mb_qp_delta
- iQpDelta = iCode;
-
- if (iQpDelta > 25 || iQpDelta < -26) { //out of iQpDelta range- return ERR_INFO_INVALID_QP;
- }
-
- pCurLayer->pLumaQp[iMbXy] = (pSlice->iLastMbQp + iQpDelta + 52) % 52; //update last_mb_qp
- pSlice->iLastMbQp = pCurLayer->pLumaQp[iMbXy];
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 (pSlice->iLastMbQp +
- pSliceHeader->pPps->iChromaQpIndexOffset, 0,
- 51)];
-
- BsStartCavlc (pBs);
-
- if (MB_TYPE_INTRA16x16 == pCurLayer->pMbType[iMbXy]) {- //step1: Luma DC
- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs, 0, 16, g_kuiLumaDcZigzagScan,
- I16_LUMA_DC, pCurLayer->pScaledTCoeff[iMbXy], pCurLayer->pLumaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- //step2: Luma AC
- if (uiCbpL) {- for (i = 0; i < 16; i++) {- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs, i,
- iScanIdxEnd - WELS_MAX (iScanIdxStart, 1) + 1, g_kuiZigzagScan + WELS_MAX (iScanIdxStart, 1),
- I16_LUMA_AC, pCurLayer->pScaledTCoeff[iMbXy] + (i << 4), pCurLayer->pLumaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- }
- ST32A4 (&pNzc[0], LD32 (&pNonZeroCount[1 + 8 * 1]));
- ST32A4 (&pNzc[4], LD32 (&pNonZeroCount[1 + 8 * 2]));
- ST32A4 (&pNzc[8], LD32 (&pNonZeroCount[1 + 8 * 3]));
- ST32A4 (&pNzc[12], LD32 (&pNonZeroCount[1 + 8 * 4]));
- }
- } else { //non-MB_TYPE_INTRA16x16- for (iId8x8 = 0; iId8x8 < 4; iId8x8++) {- iMBproperty = (IS_INTRA(pCurLayer->pMbType[iMbXy]))? LUMA_DC_AC_INTRA:LUMA_DC_AC_INTER;
- if (uiCbpL & (1 << iId8x8)) {- int32_t iIndex = (iId8x8 << 2);
- for (iId4x4 = 0; iId4x4 < 4; iId4x4++) {- //Luma (DC and AC decoding together)
- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs, iIndex,
- iScanIdxEnd - iScanIdxStart + 1, g_kuiZigzagScan + iScanIdxStart, iMBproperty,
- pCurLayer->pScaledTCoeff[iMbXy] + (iIndex << 4), pCurLayer->pLumaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- iIndex++;
- }
- } else {- ST16 (&pNonZeroCount[g_kuiCache48CountScan4Idx[iId8x8 << 2]], 0);
- ST16 (&pNonZeroCount[g_kuiCache48CountScan4Idx[ (iId8x8 << 2) + 2]], 0);
- }
- }
- ST32A4 (&pNzc[0], LD32 (&pNonZeroCount[1 + 8 * 1]));
- ST32A4 (&pNzc[4], LD32 (&pNonZeroCount[1 + 8 * 2]));
- ST32A4 (&pNzc[8], LD32 (&pNonZeroCount[1 + 8 * 3]));
- ST32A4 (&pNzc[12], LD32 (&pNonZeroCount[1 + 8 * 4]));
- }
-
-
- //chroma
- //step1: DC
- if (1 == uiCbpC || 2 == uiCbpC) {- for (i = 0; i < 2; i++) { //Cb Cr- if(IS_INTRA(pCurLayer->pMbType[iMbXy]))
- iMBproperty = i ? CHROMA_DC_V : CHROMA_DC_U;
- else
- iMBproperty = i ? CHROMA_DC_V_INTER : CHROMA_DC_V_INTER;
-
- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs,
- 16 + (i << 2), 4, g_kuiChromaDcScan, iMBproperty, pCurLayer->pScaledTCoeff[iMbXy] + 256 + (i << 6),
- pCurLayer->pChromaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- }
- } else {- }
- //step2: AC
- if (2 == uiCbpC) {- for (i = 0; i < 2; i++) { //Cb Cr- if(IS_INTRA(pCurLayer->pMbType[iMbXy]))
- iMBproperty = i ? CHROMA_AC_V : CHROMA_AC_U;
- else
- iMBproperty = i ? CHROMA_AC_V_INTER : CHROMA_AC_V_INTER;
-
- int32_t iIndex = 16 + (i << 2);
- for (iId4x4 = 0; iId4x4 < 4; iId4x4++) {- if (WelsResidualBlockCavlc (pVlcTable, pNonZeroCount, pBs, iIndex,
- iScanIdxEnd - WELS_MAX (iScanIdxStart, 1) + 1, g_kuiZigzagScan + WELS_MAX (iScanIdxStart, 1),
- iMBproperty, pCurLayer->pScaledTCoeff[iMbXy] + (iIndex << 4), pCurLayer->pChromaQp[iMbXy], pCtx)) {- return -1;//abnormal
- }
- iIndex++;
- }
- }
- ST16A2 (&pNzc[16], LD16A2 (&pNonZeroCount[6 + 8 * 1]));
- ST16A2 (&pNzc[20], LD16A2 (&pNonZeroCount[6 + 8 * 2]));
- ST16A2 (&pNzc[18], LD16A2 (&pNonZeroCount[6 + 8 * 4]));
- ST16A2 (&pNzc[22], LD16A2 (&pNonZeroCount[6 + 8 * 5]));
- }
- BsEndCavlc (pBs);
- }
-
- return 0;
-}
-
-int32_t WelsDecodeMbCavlcPSlice (PWelsDecoderContext pCtx, PNalUnit pNalCur, uint32_t& uiEosFlag) {- PDqLayer pCurLayer = pCtx->pCurDqLayer;
- PBitStringAux pBs = pCurLayer->pBitStringAux;
- PSlice pSlice = &pCurLayer->sLayerInfo.sSliceInLayer;
- PSliceHeader pSliceHeader = &pSlice->sSliceHeaderExt.sSliceHeader;
- intX_t iUsedBits;
- const int32_t iMbXy = pCurLayer->iMbXyIndex;
- int8_t* pNzc = pCurLayer->pNzc[iMbXy];
- int32_t iBaseModeFlag, i;
- int32_t iRet = 0; //should have the return value to indicate decoding error or not, It's NECESSARY--2010.4.15
- uint32_t uiCode;
-
- if (-1 == pSlice->iMbSkipRun) {- WELS_READ_VERIFY (BsGetUe (pBs, &uiCode)); //mb_skip_run
- pSlice->iMbSkipRun = uiCode;
- if (-1 == pSlice->iMbSkipRun) {- return -1;
- }
- }
- if (pSlice->iMbSkipRun--) {- int16_t iMv[2];
-
- pCurLayer->pMbType[iMbXy] = MB_TYPE_SKIP;
- ST32A4 (&pNzc[0], 0);
- ST32A4 (&pNzc[4], 0);
- ST32A4 (&pNzc[8], 0);
- ST32A4 (&pNzc[12], 0);
- ST32A4 (&pNzc[16], 0);
- ST32A4 (&pNzc[20], 0);
-
- pCurLayer->pInterPredictionDoneFlag[iMbXy] = 0;
- memset (pCurLayer->pRefIndex[0][iMbXy], 0, sizeof (int8_t) * 16);
-
- //predict iMv
- PredPSkipMvFromNeighbor (pCurLayer, iMv);
- for (i = 0; i < 16; i++) {- ST32A2 (pCurLayer->pMv[0][iMbXy][i], * (uint32_t*)iMv);
- }
-
- if (!pSlice->sSliceHeaderExt.bDefaultResidualPredFlag) {- memset (pCurLayer->pScaledTCoeff[iMbXy], 0, 384 * sizeof (int16_t));
- }
-
- //reset rS
- if (!pSlice->sSliceHeaderExt.bDefaultResidualPredFlag ||
- (pNalCur->sNalHeaderExt.uiQualityId == 0 && pNalCur->sNalHeaderExt.uiDependencyId == 0)) {- pCurLayer->pLumaQp[iMbXy] = pSlice->iLastMbQp;
- pCurLayer->pChromaQp[iMbXy] = g_kuiChromaQpTable[WELS_CLIP3 (pCurLayer->pLumaQp[iMbXy] +
- pSliceHeader->pPps->iChromaQpIndexOffset, 0, 51)];
- }
-
- pCurLayer->pCbp[iMbXy] = 0;
- } else {- if (pSlice->sSliceHeaderExt.bAdaptiveBaseModeFlag == 1) {- WELS_READ_VERIFY (BsGetOneBit (pBs, &uiCode)); //base_mode_flag
- iBaseModeFlag = uiCode;
- } else {- iBaseModeFlag = pSlice->sSliceHeaderExt.bDefaultBaseModeFlag;
- }
- if (!iBaseModeFlag) {- iRet = WelsActualDecodeMbCavlcPSlice (pCtx);
- } else {- WelsLog (& (pCtx->sLogCtx), WELS_LOG_WARNING, "iBaseModeFlag (%d) != 0, inter-layer prediction not supported.",
- iBaseModeFlag);
- return GENERATE_ERROR_NO (ERR_LEVEL_SLICE_HEADER, ERR_INFO_UNSUPPORTED_ILP);
- }
- if (iRet) { //occur error when parsing, MUST STOP decoding- return iRet;
- }
- }
- // check whether there is left bits to read next time in case multiple slices
- iUsedBits = ((pBs->pCurBuf - pBs->pStartBuf) << 3) - (16 - pBs->iLeftBits);
- // sub 1, for stop bit
- if ((iUsedBits == (pBs->iBits - 1)) && (0 >= pCurLayer->sLayerInfo.sSliceInLayer.iMbSkipRun)) { // slice boundary- uiEosFlag = 1;
- }
- if (iUsedBits > (pBs->iBits -
- 1)) { //When BS incomplete, as long as find it, SHOULD stop decoding to avoid mosaic or crash.- WelsLog (& (pCtx->sLogCtx), WELS_LOG_WARNING,
- "WelsDecodeMbCavlcISlice()::::pBs incomplete, iUsedBits:%"PRId64" > pBs->iBits:%d, MUST stop decoding.",
- (int64_t) iUsedBits, pBs->iBits);
- return -1;
- }
- return 0;
-}
-
-void WelsBlockFuncInit (SBlockFunc* pFunc, int32_t iCpu) {- pFunc->pWelsSetNonZeroCountFunc = SetNonZeroCount_c;
-
-#ifdef HAVE_NEON
- if (iCpu & WELS_CPU_NEON) {- pFunc->pWelsSetNonZeroCountFunc = SetNonZeroCount_neon;
- }
-#endif
-
-#ifdef HAVE_NEON_AARCH64
- if (iCpu & WELS_CPU_NEON) {- pFunc->pWelsSetNonZeroCountFunc = SetNonZeroCount_AArch64_neon;
- }
-#endif
-
- pFunc->pWelsBlockZero16x16Func = WelsBlockZero16x16_c;
- pFunc->pWelsBlockZero8x8Func = WelsBlockZero8x8_c;
- //TO DO add neon and X86
-#ifdef HAVE_NEON
- if (iCpu & WELS_CPU_NEON) {- pFunc->pWelsBlockZero16x16Func = WelsBlockZero16x16_neon;
- pFunc->pWelsBlockZero8x8Func = WelsBlockZero8x8_neon;
- }
-#endif
-
-#ifdef HAVE_NEON_AARCH64
- if (iCpu & WELS_CPU_NEON) {- pFunc->pWelsBlockZero16x16Func = WelsBlockZero16x16_AArch64_neon;
- pFunc->pWelsBlockZero8x8Func = WelsBlockZero8x8_AArch64_neon;
- }
-#endif
-
-#if defined(X86_ASM)
- if (iCpu & WELS_CPU_SSE2) {- pFunc->pWelsBlockZero16x16Func = WelsBlockZero16x16_sse2;
- pFunc->pWelsBlockZero8x8Func = WelsBlockZero8x8_sse2;
- }
-#endif
-
-}
-
-void SetNonZeroCount_c (int8_t* pNonZeroCount) {- int32_t i;
-
- for (i = 0; i < 24; i++) {- pNonZeroCount[i] = !!pNonZeroCount[i];
- }
-}
-
-void WelsBlockInit (int16_t* pBlock, int iW, int iH, int iStride, uint8_t uiVal) {- int32_t i;
- int16_t* pDst = pBlock;
-
- for (i = 0; i < iH; i++) {- memset (pDst, uiVal, iW * sizeof (int16_t));
- pDst += iStride;
- }
-}
-void WelsBlockZero16x16_c (int16_t* pBlock, int32_t iStride) {- WelsBlockInit (pBlock, 16, 16, iStride, 0);
-}
-
-void WelsBlockZero8x8_c (int16_t* pBlock, int32_t iStride) {- WelsBlockInit (pBlock, 8, 8, iStride, 0);
-}
-
-} // namespace WelsDec