| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
| * express or implied. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * ------------------------------------------------------------------- |
| */ |
| |
| #include <string.h> |
| |
| #include "avclib_common.h" |
| |
| #define MAX_QP 51 |
| #define MB_BLOCK_SIZE 16 |
| |
| // NOTE: these 3 tables are for funtion GetStrength() only |
| const static int ININT_STRENGTH[4] = {0x04040404, 0x03030303, 0x03030303, 0x03030303}; |
| |
| |
| // NOTE: these 3 tables are for funtion EdgeLoop() only |
| // NOTE: to change the tables below for instance when the QP doubling is changed from 6 to 8 values |
| |
| const static int ALPHA_TABLE[52] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15, 17, 20, 22, 25, 28, 32, 36, 40, 45, 50, 56, 63, 71, 80, 90, 101, 113, 127, 144, 162, 182, 203, 226, 255, 255} ; |
| const static int BETA_TABLE[52] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18} ; |
| const static int CLIP_TAB[52][5] = |
| { |
| { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, |
| { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, |
| { 0, 0, 0, 0, 0}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 1, 1, 1}, { 0, 0, 1, 1, 1}, { 0, 1, 1, 1, 1}, |
| { 0, 1, 1, 1, 1}, { 0, 1, 1, 1, 1}, { 0, 1, 1, 1, 1}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 2, 3, 3}, |
| { 0, 1, 2, 3, 3}, { 0, 2, 2, 3, 3}, { 0, 2, 2, 4, 4}, { 0, 2, 3, 4, 4}, { 0, 2, 3, 4, 4}, { 0, 3, 3, 5, 5}, { 0, 3, 4, 6, 6}, { 0, 3, 4, 6, 6}, |
| { 0, 4, 5, 7, 7}, { 0, 4, 5, 8, 8}, { 0, 4, 6, 9, 9}, { 0, 5, 7, 10, 10}, { 0, 6, 8, 11, 11}, { 0, 6, 8, 13, 13}, { 0, 7, 10, 14, 14}, { 0, 8, 11, 16, 16}, |
| { 0, 9, 12, 18, 18}, { 0, 10, 13, 20, 20}, { 0, 11, 15, 23, 23}, { 0, 13, 17, 25, 25} |
| }; |
| |
| // NOTE: this table is only QP clipping, index = QP + video->FilterOffsetA/B, clipped to [0, 51] |
| // video->FilterOffsetA/B is in {-12, 12] |
| const static int QP_CLIP_TAB[76] = |
| { |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // [-12, 0] |
| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, |
| 13, 14, 15, 16, 17, 18, 19, 20, 21, |
| 22, 23, 24, 25, 26, 27, 28, 29, 30, |
| 31, 32, 33, 34, 35, 36, 37, 38, 39, |
| 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // [1, 51] |
| 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51 // [52,63] |
| }; |
| |
| static void DeblockMb(AVCCommonObj *video, int mb_x, int mb_y, uint8 *SrcY, uint8 *SrcU, uint8 *SrcV); |
| //static void GetStrength(AVCCommonObj *video, uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir, int edge); |
| static void GetStrength_Edge0(uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir); |
| static void GetStrength_VerticalEdges(uint8 *Strength, AVCMacroblock* MbQ); |
| static void GetStrength_HorizontalEdges(uint8 Strength[12], AVCMacroblock* MbQ); |
| static void EdgeLoop_Luma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch); |
| static void EdgeLoop_Luma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch); |
| static void EdgeLoop_Chroma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch); |
| static void EdgeLoop_Chroma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch); |
| |
| /* |
| ***************************************************************************************** |
| * \brief Filter all macroblocks in order of increasing macroblock address. |
| ***************************************************************************************** |
| */ |
| |
| OSCL_EXPORT_REF AVCStatus DeblockPicture(AVCCommonObj *video) |
| { |
| uint i, j; |
| int pitch = video->currPic->pitch, pitch_c, width; |
| uint8 *SrcY, *SrcU, *SrcV; |
| |
| SrcY = video->currPic->Sl; // pointers to source |
| SrcU = video->currPic->Scb; |
| SrcV = video->currPic->Scr; |
| pitch_c = pitch >> 1; |
| width = video->currPic->width; |
| |
| for (i = 0; i < video->PicHeightInMbs; i++) |
| { |
| for (j = 0; j < video->PicWidthInMbs; j++) |
| { |
| DeblockMb(video, j, i, SrcY, SrcU, SrcV); |
| // update SrcY, SrcU, SrcV |
| SrcY += MB_BLOCK_SIZE; |
| SrcU += (MB_BLOCK_SIZE >> 1); |
| SrcV += (MB_BLOCK_SIZE >> 1); |
| } |
| |
| SrcY += ((pitch << 4) - width); |
| SrcU += ((pitch_c << 3) - (width >> 1)); |
| SrcV += ((pitch_c << 3) - (width >> 1)); |
| } |
| |
| return AVC_SUCCESS; |
| } |
| |
| #ifdef MB_BASED_DEBLOCK |
| /* |
| ***************************************************************************************** |
| * \brief Filter one macroblocks in a fast macroblock memory and copy it to frame |
| ***************************************************************************************** |
| */ |
| void MBInLoopDeblock(AVCCommonObj *video) |
| { |
| AVCPictureData *currPic = video->currPic; |
| #ifdef USE_PRED_BLOCK |
| uint8 *predCb, *predCr, *pred_block; |
| int i, j, dst_width, dst_height, dst_widthc, dst_heightc; |
| #endif |
| int pitch = currPic->pitch; |
| int x_pos = video->mb_x; |
| int y_pos = video->mb_y; |
| uint8 *curL, *curCb, *curCr; |
| int offset; |
| |
| offset = (y_pos << 4) * pitch; |
| |
| curL = currPic->Sl + offset + (x_pos << 4); |
| |
| offset >>= 2; |
| offset += (x_pos << 3); |
| |
| curCb = currPic->Scb + offset; |
| curCr = currPic->Scr + offset; |
| |
| #ifdef USE_PRED_BLOCK |
| pred_block = video->pred; |
| |
| /* 1. copy neighboring pixels from frame to the video->pred_block */ |
| if (y_pos) /* not the 0th row */ |
| { |
| /* copy to the top 4 lines of the macroblock */ |
| curL -= (pitch << 2); /* go back 4 lines */ |
| |
| memcpy(pred_block + 4, curL, 16); |
| curL += pitch; |
| memcpy(pred_block + 24, curL, 16); |
| curL += pitch; |
| memcpy(pred_block + 44, curL, 16); |
| curL += pitch; |
| memcpy(pred_block + 64, curL, 16); |
| curL += pitch; |
| |
| curCb -= (pitch << 1); /* go back 4 lines chroma */ |
| curCr -= (pitch << 1); |
| |
| pred_block += 400; |
| |
| memcpy(pred_block + 4, curCb, 8); |
| curCb += (pitch >> 1); |
| memcpy(pred_block + 16, curCb, 8); |
| curCb += (pitch >> 1); |
| memcpy(pred_block + 28, curCb, 8); |
| curCb += (pitch >> 1); |
| memcpy(pred_block + 40, curCb, 8); |
| curCb += (pitch >> 1); |
| |
| pred_block += 144; |
| memcpy(pred_block + 4, curCr, 8); |
| curCr += (pitch >> 1); |
| memcpy(pred_block + 16, curCr, 8); |
| curCr += (pitch >> 1); |
| memcpy(pred_block + 28, curCr, 8); |
| curCr += (pitch >> 1); |
| memcpy(pred_block + 40, curCr, 8); |
| curCr += (pitch >> 1); |
| |
| pred_block = video->pred; |
| } |
| |
| /* 2. perform deblocking. */ |
| DeblockMb(video, x_pos, y_pos, pred_block + 84, pred_block + 452, pred_block + 596); |
| |
| /* 3. copy it back to the frame and update pred_block */ |
| predCb = pred_block + 400; |
| predCr = predCb + 144; |
| |
| /* find the range of the block inside pred_block to be copied back */ |
| if (y_pos) /* the first row */ |
| { |
| curL -= (pitch << 2); |
| curCb -= (pitch << 1); |
| curCr -= (pitch << 1); |
| |
| dst_height = 20; |
| dst_heightc = 12; |
| } |
| else |
| { |
| pred_block += 80; |
| predCb += 48; |
| predCr += 48; |
| dst_height = 16; |
| dst_heightc = 8; |
| } |
| |
| if (x_pos) /* find the width */ |
| { |
| curL -= 4; |
| curCb -= 4; |
| curCr -= 4; |
| if (x_pos == (int)(video->PicWidthInMbs - 1)) |
| { |
| dst_width = 20; |
| dst_widthc = 12; |
| } |
| else |
| { |
| dst_width = 16; |
| dst_widthc = 8; |
| } |
| } |
| else |
| { |
| pred_block += 4; |
| predCb += 4; |
| predCr += 4; |
| dst_width = 12; |
| dst_widthc = 4; |
| } |
| |
| /* perform copy */ |
| for (j = 0; j < dst_height; j++) |
| { |
| memcpy(curL, pred_block, dst_width); |
| curL += pitch; |
| pred_block += 20; |
| } |
| for (j = 0; j < dst_heightc; j++) |
| { |
| memcpy(curCb, predCb, dst_widthc); |
| memcpy(curCr, predCr, dst_widthc); |
| curCb += (pitch >> 1); |
| curCr += (pitch >> 1); |
| predCb += 12; |
| predCr += 12; |
| } |
| |
| if (x_pos != (int)(video->PicWidthInMbs - 1)) /* now copy from the right-most 4 columns to the left-most 4 columns */ |
| { |
| pred_block = video->pred; |
| for (i = 0; i < 20; i += 4) |
| { |
| *((uint32*)pred_block) = *((uint32*)(pred_block + 16)); |
| pred_block += 20; |
| *((uint32*)pred_block) = *((uint32*)(pred_block + 16)); |
| pred_block += 20; |
| *((uint32*)pred_block) = *((uint32*)(pred_block + 16)); |
| pred_block += 20; |
| *((uint32*)pred_block) = *((uint32*)(pred_block + 16)); |
| pred_block += 20; |
| } |
| |
| for (i = 0; i < 24; i += 4) |
| { |
| *((uint32*)pred_block) = *((uint32*)(pred_block + 8)); |
| pred_block += 12; |
| *((uint32*)pred_block) = *((uint32*)(pred_block + 8)); |
| pred_block += 12; |
| *((uint32*)pred_block) = *((uint32*)(pred_block + 8)); |
| pred_block += 12; |
| *((uint32*)pred_block) = *((uint32*)(pred_block + 8)); |
| pred_block += 12; |
| } |
| |
| } |
| #else |
| DeblockMb(video, x_pos, y_pos, curL, curCb, curCr); |
| #endif |
| |
| return ; |
| } |
| #endif |
| |
| /* |
| ***************************************************************************************** |
| * \brief Deblocking filter for one macroblock. |
| ***************************************************************************************** |
| */ |
| |
| void DeblockMb(AVCCommonObj *video, int mb_x, int mb_y, uint8 *SrcY, uint8 *SrcU, uint8 *SrcV) |
| { |
| AVCMacroblock *MbP, *MbQ; |
| int edge, QP, QPC; |
| int filterLeftMbEdgeFlag = (mb_x != 0); |
| int filterTopMbEdgeFlag = (mb_y != 0); |
| int pitch = video->currPic->pitch; |
| int indexA, indexB; |
| int *tmp; |
| int Alpha, Beta, Alpha_c, Beta_c; |
| int mbNum = mb_y * video->PicWidthInMbs + mb_x; |
| int *clipTable, *clipTable_c, *qp_clip_tab; |
| uint8 Strength[16]; |
| void* str; |
| |
| MbQ = &(video->mblock[mbNum]); // current Mb |
| |
| |
| // If filter is disabled, return |
| if (video->sliceHdr->disable_deblocking_filter_idc == 1) return; |
| |
| if (video->sliceHdr->disable_deblocking_filter_idc == 2) |
| { |
| // don't filter at slice boundaries |
| filterLeftMbEdgeFlag = mb_is_available(video->mblock, video->PicSizeInMbs, mbNum - 1, mbNum); |
| filterTopMbEdgeFlag = mb_is_available(video->mblock, video->PicSizeInMbs, mbNum - video->PicWidthInMbs, mbNum); |
| } |
| |
| /* NOTE: edge=0 and edge=1~3 are separate cases because of the difference of MbP, index A and indexB calculation */ |
| /* for edge = 1~3, MbP, indexA and indexB remain the same, and thus there is no need to re-calculate them for each edge */ |
| |
| qp_clip_tab = (int *)QP_CLIP_TAB + 12; |
| |
| /* 1.VERTICAL EDGE + MB BOUNDARY (edge = 0) */ |
| if (filterLeftMbEdgeFlag) |
| { |
| MbP = MbQ - 1; |
| //GetStrength(video, Strength, MbP, MbQ, 0, 0); // Strength for 4 blks in 1 stripe, 0 => vertical edge |
| GetStrength_Edge0(Strength, MbP, MbQ, 0); |
| |
| str = (void*)Strength; //de-ref type-punned pointer fix |
| if (*((uint32*)str)) // only if one of the 4 Strength bytes is != 0 |
| { |
| QP = (MbP->QPy + MbQ->QPy + 1) >> 1; // Average QP of the two blocks; |
| indexA = QP + video->FilterOffsetA; |
| indexB = QP + video->FilterOffsetB; |
| indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) |
| indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) |
| |
| Alpha = ALPHA_TABLE[indexA]; |
| Beta = BETA_TABLE[indexB]; |
| clipTable = (int *) CLIP_TAB[indexA]; |
| |
| if (Alpha > 0 && Beta > 0) |
| #ifdef USE_PRED_BLOCK |
| EdgeLoop_Luma_vertical(SrcY, Strength, Alpha, Beta, clipTable, 20); |
| #else |
| EdgeLoop_Luma_vertical(SrcY, Strength, Alpha, Beta, clipTable, pitch); |
| #endif |
| |
| QPC = (MbP->QPc + MbQ->QPc + 1) >> 1; |
| indexA = QPC + video->FilterOffsetA; |
| indexB = QPC + video->FilterOffsetB; |
| indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) |
| indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) |
| |
| Alpha = ALPHA_TABLE[indexA]; |
| Beta = BETA_TABLE[indexB]; |
| clipTable = (int *) CLIP_TAB[indexA]; |
| if (Alpha > 0 && Beta > 0) |
| { |
| #ifdef USE_PRED_BLOCK |
| EdgeLoop_Chroma_vertical(SrcU, Strength, Alpha, Beta, clipTable, 12); |
| EdgeLoop_Chroma_vertical(SrcV, Strength, Alpha, Beta, clipTable, 12); |
| #else |
| EdgeLoop_Chroma_vertical(SrcU, Strength, Alpha, Beta, clipTable, pitch >> 1); |
| EdgeLoop_Chroma_vertical(SrcV, Strength, Alpha, Beta, clipTable, pitch >> 1); |
| #endif |
| } |
| } |
| |
| } /* end of: if(filterLeftMbEdgeFlag) */ |
| |
| /* 2.VERTICAL EDGE (no boundary), the edges are all inside a MB */ |
| /* First calculate the necesary parameters all at once, outside the loop */ |
| MbP = MbQ; |
| |
| indexA = MbQ->QPy + video->FilterOffsetA; |
| indexB = MbQ->QPy + video->FilterOffsetB; |
| // index |
| indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) |
| indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) |
| |
| Alpha = ALPHA_TABLE[indexA]; |
| Beta = BETA_TABLE[indexB]; |
| clipTable = (int *)CLIP_TAB[indexA]; |
| |
| /* Save Alpha, Beta and clipTable for future use, with the obselete variables filterLeftMbEdgeFlag, mbNum amd tmp */ |
| filterLeftMbEdgeFlag = Alpha; |
| mbNum = Beta; |
| tmp = clipTable; |
| |
| indexA = MbQ->QPc + video->FilterOffsetA; |
| indexB = MbQ->QPc + video->FilterOffsetB; |
| indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) |
| indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) |
| |
| Alpha_c = ALPHA_TABLE[indexA]; |
| Beta_c = BETA_TABLE[indexB]; |
| clipTable_c = (int *)CLIP_TAB[indexA]; |
| |
| GetStrength_VerticalEdges(Strength + 4, MbQ); // Strength for 4 blks in 1 stripe, 0 => vertical edge |
| |
| for (edge = 1; edge < 4; edge++) // 4 vertical strips of 16 pel |
| { |
| //GetStrength_VerticalEdges(video, Strength, MbP, MbQ, 0, edge); // Strength for 4 blks in 1 stripe, 0 => vertical edge |
| if (*((int*)(Strength + (edge << 2)))) // only if one of the 4 Strength bytes is != 0 |
| { |
| if (Alpha > 0 && Beta > 0) |
| #ifdef USE_PRED_BLOCK |
| EdgeLoop_Luma_vertical(SrcY + (edge << 2), Strength + (edge << 2), Alpha, Beta, clipTable, 20); |
| #else |
| EdgeLoop_Luma_vertical(SrcY + (edge << 2), Strength + (edge << 2), Alpha, Beta, clipTable, pitch); |
| #endif |
| |
| if (!(edge & 1) && Alpha_c > 0 && Beta_c > 0) |
| { |
| #ifdef USE_PRED_BLOCK |
| EdgeLoop_Chroma_vertical(SrcU + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12); |
| EdgeLoop_Chroma_vertical(SrcV + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12); |
| #else |
| EdgeLoop_Chroma_vertical(SrcU + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1); |
| EdgeLoop_Chroma_vertical(SrcV + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1); |
| #endif |
| } |
| } |
| |
| } //end edge |
| |
| |
| |
| /* 3.HORIZONTAL EDGE + MB BOUNDARY (edge = 0) */ |
| if (filterTopMbEdgeFlag) |
| { |
| MbP = MbQ - video->PicWidthInMbs; |
| //GetStrength(video, Strength, MbP, MbQ, 1, 0); // Strength for 4 blks in 1 stripe, 0 => vertical edge |
| GetStrength_Edge0(Strength, MbP, MbQ, 1); |
| str = (void*)Strength; //de-ref type-punned pointer fix |
| if (*((uint32*)str)) // only if one of the 4 Strength bytes is != 0 |
| { |
| QP = (MbP->QPy + MbQ->QPy + 1) >> 1; // Average QP of the two blocks; |
| indexA = QP + video->FilterOffsetA; |
| indexB = QP + video->FilterOffsetB; |
| indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) |
| indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) |
| |
| Alpha = ALPHA_TABLE[indexA]; |
| Beta = BETA_TABLE[indexB]; |
| clipTable = (int *)CLIP_TAB[indexA]; |
| |
| if (Alpha > 0 && Beta > 0) |
| { |
| #ifdef USE_PRED_BLOCK |
| EdgeLoop_Luma_horizontal(SrcY, Strength, Alpha, Beta, clipTable, 20); |
| #else |
| EdgeLoop_Luma_horizontal(SrcY, Strength, Alpha, Beta, clipTable, pitch); |
| #endif |
| } |
| |
| QPC = (MbP->QPc + MbQ->QPc + 1) >> 1; |
| indexA = QPC + video->FilterOffsetA; |
| indexB = QPC + video->FilterOffsetB; |
| indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) |
| indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) |
| |
| Alpha = ALPHA_TABLE[indexA]; |
| Beta = BETA_TABLE[indexB]; |
| clipTable = (int *)CLIP_TAB[indexA]; |
| if (Alpha > 0 && Beta > 0) |
| { |
| #ifdef USE_PRED_BLOCK |
| EdgeLoop_Chroma_horizontal(SrcU, Strength, Alpha, Beta, clipTable, 12); |
| EdgeLoop_Chroma_horizontal(SrcV, Strength, Alpha, Beta, clipTable, 12); |
| #else |
| EdgeLoop_Chroma_horizontal(SrcU, Strength, Alpha, Beta, clipTable, pitch >> 1); |
| EdgeLoop_Chroma_horizontal(SrcV, Strength, Alpha, Beta, clipTable, pitch >> 1); |
| #endif |
| } |
| } |
| |
| } /* end of: if(filterTopMbEdgeFlag) */ |
| |
| |
| /* 4.HORIZONTAL EDGE (no boundary), the edges are inside a MB */ |
| MbP = MbQ; |
| |
| /* Recover Alpha, Beta and clipTable for edge!=0 with the variables filterLeftMbEdgeFlag, mbNum and tmp */ |
| /* Note that Alpha_c, Beta_c and clipTable_c for chroma is already calculated */ |
| Alpha = filterLeftMbEdgeFlag; |
| Beta = mbNum; |
| clipTable = tmp; |
| |
| GetStrength_HorizontalEdges(Strength + 4, MbQ); // Strength for 4 blks in 1 stripe, 0 => vertical edge |
| |
| for (edge = 1; edge < 4; edge++) // 4 horicontal strips of 16 pel |
| { |
| //GetStrength(video, Strength, MbP, MbQ, 1, edge); // Strength for 4 blks in 1 stripe 1 => horizontal edge |
| if (*((int*)(Strength + (edge << 2)))) // only if one of the 4 Strength bytes is != 0 |
| { |
| if (Alpha > 0 && Beta > 0) |
| { |
| #ifdef USE_PRED_BLOCK |
| EdgeLoop_Luma_horizontal(SrcY + (edge << 2)*20, Strength + (edge << 2), Alpha, Beta, clipTable, 20); |
| #else |
| EdgeLoop_Luma_horizontal(SrcY + (edge << 2)*pitch, Strength + (edge << 2), Alpha, Beta, clipTable, pitch); |
| #endif |
| } |
| |
| if (!(edge & 1) && Alpha_c > 0 && Beta_c > 0) |
| { |
| #ifdef USE_PRED_BLOCK |
| EdgeLoop_Chroma_horizontal(SrcU + (edge << 1)*12, Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12); |
| EdgeLoop_Chroma_horizontal(SrcV + (edge << 1)*12, Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12); |
| #else |
| EdgeLoop_Chroma_horizontal(SrcU + (edge << 1)*(pitch >> 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1); |
| EdgeLoop_Chroma_horizontal(SrcV + (edge << 1)*(pitch >> 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1); |
| #endif |
| } |
| } |
| |
| } //end edge |
| |
| return; |
| } |
| |
| /* |
| ***************************************************************************************************** |
| * \brief returns a buffer of 4 Strength values for one stripe in a mb (for different Frame types) |
| ***************************************************************************************************** |
| */ |
| |
| void GetStrength_Edge0(uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir) |
| { |
| int tmp; |
| int16 *ptrQ, *ptrP; |
| void* vptr; |
| uint8 *pStrength; |
| void* refIdx; |
| |
| if (MbP->mbMode == AVC_I4 || MbP->mbMode == AVC_I16 || |
| MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16) |
| { |
| |
| *((int*)Strength) = ININT_STRENGTH[0]; // Start with Strength=3. or Strength=4 for Mb-edge |
| |
| } |
| else // if not intra or SP-frame |
| { |
| *((int*)Strength) = 0; |
| |
| if (dir == 0) // Vertical Edge 0 |
| { |
| |
| //1. Check the ref_frame_id |
| refIdx = (void*) MbQ->RefIdx; //de-ref type-punned pointer fix |
| ptrQ = (int16*)refIdx; |
| refIdx = (void*)MbP->RefIdx; //de-ref type-punned pointer fix |
| ptrP = (int16*)refIdx; |
| pStrength = Strength; |
| if (ptrQ[0] != ptrP[1]) pStrength[0] = 1; |
| if (ptrQ[2] != ptrP[3]) pStrength[2] = 1; |
| pStrength[1] = pStrength[0]; |
| pStrength[3] = pStrength[2]; |
| |
| //2. Check the non-zero coeff blocks (4x4) |
| if (MbQ->nz_coeff[0] != 0 || MbP->nz_coeff[3] != 0) pStrength[0] = 2; |
| if (MbQ->nz_coeff[4] != 0 || MbP->nz_coeff[7] != 0) pStrength[1] = 2; |
| if (MbQ->nz_coeff[8] != 0 || MbP->nz_coeff[11] != 0) pStrength[2] = 2; |
| if (MbQ->nz_coeff[12] != 0 || MbP->nz_coeff[15] != 0) pStrength[3] = 2; |
| |
| //3. Only need to check the mv difference |
| vptr = (void*)MbQ->mvL0; // for deref type-punned pointer |
| ptrQ = (int16*)vptr; |
| ptrP = (int16*)(MbP->mvL0 + 3); // points to 4x4 block #3 (the 4th column) |
| |
| // 1st blk |
| if (*pStrength == 0) |
| { |
| // check |mv difference| >= 4 |
| tmp = *ptrQ++ - *ptrP++; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *ptrQ-- - *ptrP--; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| pStrength++; |
| ptrQ += 8; |
| ptrP += 8; |
| |
| // 2nd blk |
| if (*pStrength == 0) |
| { |
| // check |mv difference| >= 4 |
| tmp = *ptrQ++ - *ptrP++; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *ptrQ-- - *ptrP--; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| pStrength++; |
| ptrQ += 8; |
| ptrP += 8; |
| |
| // 3rd blk |
| if (*pStrength == 0) |
| { |
| // check |mv difference| >= 4 |
| tmp = *ptrQ++ - *ptrP++; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *ptrQ-- - *ptrP--; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| pStrength++; |
| ptrQ += 8; |
| ptrP += 8; |
| |
| // 4th blk |
| if (*pStrength == 0) |
| { |
| // check |mv difference| >= 4 |
| tmp = *ptrQ++ - *ptrP++; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *ptrQ-- - *ptrP--; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| } |
| else // Horizontal Edge 0 |
| { |
| |
| //1. Check the ref_frame_id |
| refIdx = (void*)MbQ->RefIdx; //de-ref type-punned pointer |
| ptrQ = (int16*)refIdx; |
| refIdx = (void*)MbP->RefIdx; //de-ref type-punned pointer |
| ptrP = (int16*)refIdx; |
| pStrength = Strength; |
| if (ptrQ[0] != ptrP[2]) pStrength[0] = 1; |
| if (ptrQ[1] != ptrP[3]) pStrength[2] = 1; |
| pStrength[1] = pStrength[0]; |
| pStrength[3] = pStrength[2]; |
| |
| //2. Check the non-zero coeff blocks (4x4) |
| if (MbQ->nz_coeff[0] != 0 || MbP->nz_coeff[12] != 0) pStrength[0] = 2; |
| if (MbQ->nz_coeff[1] != 0 || MbP->nz_coeff[13] != 0) pStrength[1] = 2; |
| if (MbQ->nz_coeff[2] != 0 || MbP->nz_coeff[14] != 0) pStrength[2] = 2; |
| if (MbQ->nz_coeff[3] != 0 || MbP->nz_coeff[15] != 0) pStrength[3] = 2; |
| |
| //3. Only need to check the mv difference |
| vptr = (void*)MbQ->mvL0; |
| ptrQ = (int16*)vptr; |
| ptrP = (int16*)(MbP->mvL0 + 12); // points to 4x4 block #12 (the 4th row) |
| |
| // 1st blk |
| if (*pStrength == 0) |
| { |
| // check |mv difference| >= 4 |
| tmp = *ptrQ++ - *ptrP++; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *ptrQ-- - *ptrP--; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| pStrength++; |
| ptrQ += 2; |
| ptrP += 2; |
| |
| // 2nd blk |
| if (*pStrength == 0) |
| { |
| // check |mv difference| >= 4 |
| tmp = *ptrQ++ - *ptrP++; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *ptrQ-- - *ptrP--; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| pStrength++; |
| ptrQ += 2; |
| ptrP += 2; |
| |
| // 3rd blk |
| if (*pStrength == 0) |
| { |
| // check |mv difference| >= 4 |
| tmp = *ptrQ++ - *ptrP++; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *ptrQ-- - *ptrP--; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| pStrength++; |
| ptrQ += 2; |
| ptrP += 2; |
| |
| // 4th blk |
| if (*pStrength == 0) |
| { |
| // check |mv difference| >= 4 |
| tmp = *ptrQ++ - *ptrP++; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *ptrQ-- - *ptrP--; |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| } /* end of: else if(dir == 0) */ |
| |
| } /* end of: if( !(MbP->mbMode == AVC_I4 ...) */ |
| } |
| |
| |
| void GetStrength_VerticalEdges(uint8 *Strength, AVCMacroblock* MbQ) |
| { |
| int idx, tmp; |
| int16 *ptr, *pmvx, *pmvy; |
| uint8 *pnz; |
| uint8 *pStrength, *pStr; |
| void* refIdx; |
| |
| if (MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16) |
| { |
| *((int*)Strength) = ININT_STRENGTH[1]; // Start with Strength=3. or Strength=4 for Mb-edge |
| *((int*)(Strength + 4)) = ININT_STRENGTH[2]; |
| *((int*)(Strength + 8)) = ININT_STRENGTH[3]; |
| } |
| else // Not intra or SP-frame |
| { |
| |
| *((int*)Strength) = 0; // for non-intra MB, strength = 0, 1 or 2. |
| *((int*)(Strength + 4)) = 0; |
| *((int*)(Strength + 8)) = 0; |
| |
| //1. Check the ref_frame_id |
| refIdx = (void*)MbQ->RefIdx; //de-ref type-punned pointer fix |
| ptr = (int16*)refIdx; |
| pStrength = Strength; |
| if (ptr[0] != ptr[1]) pStrength[4] = 1; |
| if (ptr[2] != ptr[3]) pStrength[6] = 1; |
| pStrength[5] = pStrength[4]; |
| pStrength[7] = pStrength[6]; |
| |
| //2. Check the nz_coeff block and mv difference |
| pmvx = (int16*)(MbQ->mvL0 + 1); // points to 4x4 block #1,not #0 |
| pmvy = pmvx + 1; |
| for (idx = 0; idx < 4; idx += 2) // unroll the loop, make 4 iterations to 2 |
| { |
| // first/third row : 1,2,3 or 9,10,12 |
| // Strength = 2 for a whole row |
| pnz = MbQ->nz_coeff + (idx << 2); |
| if (*pnz++ != 0) *pStrength = 2; |
| if (*pnz++ != 0) |
| { |
| *pStrength = 2; |
| *(pStrength + 4) = 2; |
| } |
| if (*pnz++ != 0) |
| { |
| *(pStrength + 4) = 2; |
| *(pStrength + 8) = 2; |
| } |
| if (*pnz != 0) *(pStrength + 8) = 2; |
| |
| // Then Strength = 1 |
| if (*pStrength == 0) |
| { |
| //within the same 8x8 block, no need to check the reference id |
| //only need to check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *pmvy - *(pmvy - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| pmvx += 2; |
| pmvy += 2; |
| pStr = pStrength + 4; |
| |
| if (*pStr == 0) |
| { |
| //check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| pmvx += 2; |
| pmvy += 2; |
| pStr = pStrength + 8; |
| |
| if (*pStr == 0) |
| { |
| //within the same 8x8 block, no need to check the reference id |
| //only need to check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| // Second/fourth row: 5,6,7 or 14,15,16 |
| // Strength = 2 for a whole row |
| pnz = MbQ->nz_coeff + ((idx + 1) << 2); |
| if (*pnz++ != 0) *(pStrength + 1) = 2; |
| if (*pnz++ != 0) |
| { |
| *(pStrength + 1) = 2; |
| *(pStrength + 5) = 2; |
| } |
| if (*pnz++ != 0) |
| { |
| *(pStrength + 5) = 2; |
| *(pStrength + 9) = 2; |
| } |
| if (*pnz != 0) *(pStrength + 9) = 2; |
| |
| // Then Strength = 1 |
| pmvx += 4; |
| pmvy += 4; |
| pStr = pStrength + 1; |
| if (*pStr == 0) |
| { |
| //within the same 8x8 block, no need to check the reference id |
| //only need to check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| pmvx += 2; |
| pmvy += 2; |
| pStr = pStrength + 5; |
| |
| if (*pStr == 0) |
| { |
| //check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| pmvx += 2; |
| pmvy += 2; |
| pStr = pStrength + 9; |
| |
| if (*pStr == 0) |
| { |
| //within the same 8x8 block, no need to check the reference id |
| //only need to check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 2); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| // update some variables for the next two rows |
| pmvx += 4; |
| pmvy += 4; |
| pStrength += 2; |
| |
| } /* end of: for(idx=0; idx<2; idx++) */ |
| |
| } /* end of: else if( MbQ->mbMode == AVC_I4 ...) */ |
| } |
| |
| |
| void GetStrength_HorizontalEdges(uint8 Strength[12], AVCMacroblock* MbQ) |
| { |
| int idx, tmp; |
| int16 *ptr, *pmvx, *pmvy; |
| uint8 *pStrength, *pStr; |
| void* refIdx; |
| |
| if (MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16) |
| { |
| *((int*)Strength) = ININT_STRENGTH[1]; // Start with Strength=3. or Strength=4 for Mb-edge |
| *((int*)(Strength + 4)) = ININT_STRENGTH[2]; |
| *((int*)(Strength + 8)) = ININT_STRENGTH[3]; |
| } |
| else // Not intra or SP-frame |
| { |
| |
| *((int*)Strength) = 0; // for non-intra MB, strength = 0, 1 or 2. |
| *((int*)(Strength + 4)) = 0; // for non-intra MB, strength = 0, 1 or 2. |
| *((int*)(Strength + 8)) = 0; // for non-intra MB, strength = 0, 1 or 2. |
| |
| |
| //1. Check the ref_frame_id |
| refIdx = (void*) MbQ->RefIdx; // de-ref type-punned fix |
| ptr = (int16*) refIdx; |
| pStrength = Strength; |
| if (ptr[0] != ptr[2]) pStrength[4] = 1; |
| if (ptr[1] != ptr[3]) pStrength[6] = 1; |
| pStrength[5] = pStrength[4]; |
| pStrength[7] = pStrength[6]; |
| |
| //2. Check the nz_coeff block and mv difference |
| pmvx = (int16*)(MbQ->mvL0 + 4); // points to 4x4 block #4,not #0 |
| pmvy = pmvx + 1; |
| for (idx = 0; idx < 4; idx += 2) // unroll the loop, make 4 iterations to 2 |
| { |
| // first/third row : 1,2,3 or 9,10,12 |
| // Strength = 2 for a whole row |
| if (MbQ->nz_coeff[idx] != 0) *pStrength = 2; |
| if (MbQ->nz_coeff[4+idx] != 0) |
| { |
| *pStrength = 2; |
| *(pStrength + 4) = 2; |
| } |
| if (MbQ->nz_coeff[8+idx] != 0) |
| { |
| *(pStrength + 4) = 2; |
| *(pStrength + 8) = 2; |
| } |
| if (MbQ->nz_coeff[12+idx] != 0) *(pStrength + 8) = 2; |
| |
| // Then Strength = 1 |
| if (*pStrength == 0) |
| { |
| //within the same 8x8 block, no need to check the reference id |
| //only need to check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| |
| tmp = *pmvy - *(pmvy - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStrength = 1; |
| } |
| |
| pmvx += 8; |
| pmvy += 8; |
| pStr = pStrength + 4; |
| |
| if (*pStr == 0) |
| { |
| //check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| pmvx += 8; |
| pmvy += 8; |
| pStr = pStrength + 8; |
| |
| if (*pStr == 0) |
| { |
| //within the same 8x8 block, no need to check the reference id |
| //only need to check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| // Second/fourth row: 5,6,7 or 14,15,16 |
| // Strength = 2 for a whole row |
| if (MbQ->nz_coeff[idx+1] != 0) *(pStrength + 1) = 2; |
| if (MbQ->nz_coeff[4+idx+1] != 0) |
| { |
| *(pStrength + 1) = 2; |
| *(pStrength + 5) = 2; |
| } |
| if (MbQ->nz_coeff[8+idx+1] != 0) |
| { |
| *(pStrength + 5) = 2; |
| *(pStrength + 9) = 2; |
| } |
| if (MbQ->nz_coeff[12+idx+1] != 0) *(pStrength + 9) = 2; |
| |
| // Then Strength = 1 |
| pmvx -= 14; |
| pmvy -= 14; // -14 = -16 + 2 |
| pStr = pStrength + 1; |
| if (*pStr == 0) |
| { |
| //within the same 8x8 block, no need to check the reference id |
| //only need to check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| pmvx += 8; |
| pmvy += 8; |
| pStr = pStrength + 5; |
| |
| if (*pStr == 0) |
| { |
| //check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| pmvx += 8; |
| pmvy += 8; |
| pStr = pStrength + 9; |
| |
| if (*pStr == 0) |
| { |
| //within the same 8x8 block, no need to check the reference id |
| //only need to check the |mv difference| >= 4 |
| tmp = *pmvx - *(pmvx - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| |
| tmp = *pmvy - *(pmvy - 8); |
| if (tmp < 0) tmp = -tmp; |
| if (tmp >= 4) *pStr = 1; |
| } |
| |
| // update some variables for the next two rows |
| pmvx -= 14; |
| pmvy -= 14; // -14 = -16 + 2 |
| pStrength += 2; |
| |
| } /* end of: for(idx=0; idx<2; idx++) */ |
| |
| } /* end of: else if( MbQ->mbMode == AVC_I4 ...) */ |
| } |
| |
| /* |
| ***************************************************************************************** |
| * \brief Filters one edge of 16 (luma) or 8 (chroma) pel |
| ***************************************************************************************** |
| */ |
| |
| void EdgeLoop_Luma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch) |
| { |
| int pel, ap = 0, aq = 0, Strng; |
| int C0, c0, dif, AbsDelta, tmp, tmp1; |
| int L2 = 0, L1, L0, R0, R1, R2 = 0, RL0; |
| |
| |
| if (Strength[0] == 4) /* INTRA strong filtering */ |
| { |
| for (pel = 0; pel < 16; pel++) |
| { |
| R0 = SrcPtr[0]; |
| R1 = SrcPtr[pitch]; |
| L0 = SrcPtr[-pitch]; |
| L1 = SrcPtr[-(pitch<<1)]; |
| |
| // |R0 - R1| < Beta |
| tmp1 = R0 - R1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp = (tmp1 - Beta); |
| |
| //|L0 - L1| < Beta |
| tmp1 = L0 - L1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Beta); |
| |
| //|R0 - L0| < Alpha |
| AbsDelta = R0 - L0; |
| if (AbsDelta < 0) AbsDelta = -AbsDelta; |
| tmp &= (AbsDelta - Alpha); |
| |
| if (tmp < 0) |
| { |
| AbsDelta -= ((Alpha >> 2) + 2); |
| R2 = SrcPtr[pitch<<1]; //inc2 |
| L2 = SrcPtr[-(pitch+(pitch<<1))]; // -inc3 |
| |
| // |R0 - R2| < Beta && |R0 - L0| < (Alpha/4 + 2) |
| tmp = R0 - R2; |
| if (tmp < 0) tmp = -tmp; |
| aq = AbsDelta & (tmp - Beta); |
| |
| // |L0 - L2| < Beta && |R0 - L0| < (Alpha/4 + 2) |
| tmp = L0 - L2; |
| if (tmp < 0) tmp = -tmp; |
| ap = AbsDelta & (tmp - Beta); |
| |
| if (aq < 0) |
| { |
| tmp = R1 + R0 + L0; |
| SrcPtr[0] = (L1 + (tmp << 1) + R2 + 4) >> 3; |
| tmp += R2; |
| SrcPtr[pitch] = (tmp + 2) >> 2; |
| SrcPtr[pitch<<1] = (((SrcPtr[(pitch+(pitch<<1))] + R2) << 1) + tmp + 4) >> 3; |
| } |
| else |
| SrcPtr[0] = ((R1 << 1) + R0 + L1 + 2) >> 2; |
| |
| if (ap < 0) |
| { |
| tmp = L1 + R0 + L0; |
| SrcPtr[-pitch] = (R1 + (tmp << 1) + L2 + 4) >> 3; |
| tmp += L2; |
| SrcPtr[-(pitch<<1)] = (tmp + 2) >> 2; |
| SrcPtr[-(pitch+(pitch<<1))] = (((SrcPtr[-(pitch<<2)] + L2) << 1) + tmp + 4) >> 3; |
| } |
| else |
| SrcPtr[-pitch] = ((L1 << 1) + L0 + R1 + 2) >> 2; |
| |
| } /* if(tmp < 0) */ |
| |
| SrcPtr ++; // Increment to next set of pixel |
| |
| } /* end of: for(pel=0; pel<16; pel++) */ |
| |
| } /* if(Strength[0] == 4) */ |
| |
| else /* Normal filtering */ |
| { |
| for (pel = 0; pel < 16; pel++) |
| { |
| Strng = Strength[pel >> 2]; |
| if (Strng) |
| { |
| R0 = SrcPtr[0]; |
| R1 = SrcPtr[pitch]; |
| L0 = SrcPtr[-pitch]; |
| L1 = SrcPtr[-(pitch<<1)]; // inc2 |
| |
| //|R0 - L0| < Alpha |
| tmp1 = R0 - L0; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp = (tmp1 - Alpha); |
| |
| // |R0 - R1| < Beta |
| tmp1 = R0 - R1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Beta); |
| |
| //|L0 - L1| < Beta |
| tmp1 = L0 - L1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Beta); |
| |
| if (tmp < 0) |
| { |
| R2 = SrcPtr[pitch<<1]; //inc2 |
| L2 = SrcPtr[-(pitch+(pitch<<1))]; // -inc3 |
| |
| // |R0 - R2| < Beta |
| tmp = R0 - R2; |
| if (tmp < 0) tmp = -tmp; |
| aq = tmp - Beta; |
| |
| // |L0 - L2| < Beta |
| tmp = L0 - L2; |
| if (tmp < 0) tmp = -tmp; |
| ap = tmp - Beta; |
| |
| |
| c0 = C0 = clipTable[Strng]; |
| if (ap < 0) c0++; |
| if (aq < 0) c0++; |
| |
| //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3); |
| dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3; |
| tmp = dif + c0; |
| if ((uint)tmp > (uint)c0 << 1) |
| { |
| tmp = ~(tmp >> 31); |
| dif = (tmp & (c0 << 1)) - c0; |
| } |
| |
| //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif); |
| //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif); |
| RL0 = R0 + L0; |
| R0 -= dif; |
| L0 += dif; |
| if ((uint)R0 > 255) |
| { |
| tmp = ~(R0 >> 31); |
| R0 = tmp & 255; |
| } |
| if ((uint)L0 > 255) |
| { |
| tmp = ~(L0 >> 31); |
| L0 = tmp & 255; |
| } |
| SrcPtr[-pitch] = L0; |
| SrcPtr[0] = R0; |
| |
| if (C0 != 0) /* Multiple zeros in the clip tables */ |
| { |
| if (aq < 0) // SrcPtr[inc] += IClip(-C0, C0,(R2 + ((RL0 + 1) >> 1) - (R1<<1)) >> 1); |
| { |
| R2 = (R2 + ((RL0 + 1) >> 1) - (R1 << 1)) >> 1; |
| tmp = R2 + C0; |
| if ((uint)tmp > (uint)C0 << 1) |
| { |
| tmp = ~(tmp >> 31); |
| R2 = (tmp & (C0 << 1)) - C0; |
| } |
| SrcPtr[pitch] += R2; |
| } |
| |
| if (ap < 0) //SrcPtr[-inc2] += IClip(-C0, C0,(L2 + ((RL0 + 1) >> 1) - (L1<<1)) >> 1); |
| { |
| L2 = (L2 + ((RL0 + 1) >> 1) - (L1 << 1)) >> 1; |
| tmp = L2 + C0; |
| if ((uint)tmp > (uint)C0 << 1) |
| { |
| tmp = ~(tmp >> 31); |
| L2 = (tmp & (C0 << 1)) - C0; |
| } |
| SrcPtr[-(pitch<<1)] += L2; |
| } |
| } |
| |
| } /* if(tmp < 0) */ |
| |
| } /* end of: if((Strng = Strength[pel >> 2])) */ |
| |
| SrcPtr ++; // Increment to next set of pixel |
| |
| } /* for(pel=0; pel<16; pel++) */ |
| |
| } /* else if(Strength[0] == 4) */ |
| } |
| |
| void EdgeLoop_Luma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch) |
| { |
| int pel, ap = 1, aq = 1; |
| int C0, c0, dif, AbsDelta, Strng, tmp, tmp1; |
| int L2 = 0, L1, L0, R0, R1, R2 = 0; |
| uint8 *ptr, *ptr1; |
| uint R_in, L_in; |
| uint R_out, L_out; |
| |
| |
| if (Strength[0] == 4) /* INTRA strong filtering */ |
| { |
| |
| for (pel = 0; pel < 16; pel++) |
| { |
| |
| // Read 8 pels |
| R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0} |
| L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3} |
| R1 = (R_in >> 8) & 0xff; |
| R0 = R_in & 0xff; |
| L0 = L_in >> 24; |
| L1 = (L_in >> 16) & 0xff; |
| |
| // |R0 - R1| < Beta |
| tmp1 = (R_in & 0xff) - R1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp = (tmp1 - Beta); |
| |
| |
| //|L0 - L1| < Beta |
| tmp1 = (L_in >> 24) - L1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Beta); |
| |
| //|R0 - L0| < Alpha |
| AbsDelta = (R_in & 0xff) - (L_in >> 24); |
| if (AbsDelta < 0) AbsDelta = -AbsDelta; |
| tmp &= (AbsDelta - Alpha); |
| |
| if (tmp < 0) |
| { |
| AbsDelta -= ((Alpha >> 2) + 2); |
| R2 = (R_in >> 16) & 0xff; |
| L2 = (L_in >> 8) & 0xff; |
| |
| // |R0 - R2| < Beta && |R0 - L0| < (Alpha/4 + 2) |
| tmp1 = (R_in & 0xff) - R2; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| aq = AbsDelta & (tmp1 - Beta); |
| |
| // |L0 - L2| < Beta && |R0 - L0| < (Alpha/4 + 2) |
| tmp1 = (L_in >> 24) - L2; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| ap = AbsDelta & (tmp1 - Beta); |
| |
| |
| ptr = SrcPtr; |
| if (aq < 0) |
| { |
| R_out = (R_in >> 24) << 24; // Keep R3 at the fourth byte |
| |
| tmp = R0 + L0 + R1; |
| R_out |= (((tmp << 1) + L1 + R2 + 4) >> 3); |
| tmp += R2; |
| R_out |= (((tmp + 2) >> 2) << 8); |
| tmp1 = ((R_in >> 24) + R2) << 1; |
| R_out |= (((tmp1 + tmp + 4) >> 3) << 16); |
| |
| *((uint *)SrcPtr) = R_out; |
| } |
| else |
| *ptr = ((R1 << 1) + R0 + L1 + 2) >> 2; |
| |
| |
| if (ap < 0) |
| { |
| L_out = (L_in << 24) >> 24; // Keep L3 at the first byte |
| |
| tmp = R0 + L0 + L1; |
| L_out |= ((((tmp << 1) + R1 + L2 + 4) >> 3) << 24); |
| tmp += L2; |
| L_out |= (((tmp + 2) >> 2) << 16); |
| tmp1 = ((L_in & 0xff) + L2) << 1; |
| L_out |= (((tmp1 + tmp + 4) >> 3) << 8); |
| |
| *((uint *)(SrcPtr - 4)) = L_out; |
| } |
| else |
| *(--ptr) = ((L1 << 1) + L0 + R1 + 2) >> 2; |
| |
| } /* if(tmp < 0) */ |
| |
| SrcPtr += pitch; // Increment to next set of pixel |
| |
| } /* end of: for(pel=0; pel<16; pel++) */ |
| |
| } /* if(Strength[0] == 4) */ |
| |
| else /* Normal filtering */ |
| { |
| |
| for (pel = 0; pel < 16; pel++) |
| { |
| Strng = Strength[pel >> 2]; |
| if (Strng) |
| { |
| // Read 8 pels |
| R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0} |
| L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3} |
| R1 = (R_in >> 8) & 0xff; |
| R0 = R_in & 0xff; |
| L0 = L_in >> 24; |
| L1 = (L_in >> 16) & 0xff; |
| |
| //|R0 - L0| < Alpha |
| tmp = R0 - L0; |
| if (tmp < 0) tmp = -tmp; |
| tmp -= Alpha; |
| |
| // |R0 - R1| < Beta |
| tmp1 = R0 - R1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Beta); |
| |
| //|L0 - L1| < Beta |
| tmp1 = L0 - L1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Beta); |
| |
| if (tmp < 0) |
| { |
| L2 = SrcPtr[-3]; |
| R2 = SrcPtr[2]; |
| |
| // |R0 - R2| < Beta |
| tmp = R0 - R2; |
| if (tmp < 0) tmp = -tmp; |
| aq = tmp - Beta; |
| |
| // |L0 - L2| < Beta |
| tmp = L0 - L2; |
| if (tmp < 0) tmp = -tmp; |
| ap = tmp - Beta; |
| |
| |
| c0 = C0 = clipTable[Strng]; |
| if (ap < 0) c0++; |
| if (aq < 0) c0++; |
| |
| //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3); |
| dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3; |
| tmp = dif + c0; |
| if ((uint)tmp > (uint)c0 << 1) |
| { |
| tmp = ~(tmp >> 31); |
| dif = (tmp & (c0 << 1)) - c0; |
| } |
| |
| ptr = SrcPtr; |
| ptr1 = SrcPtr - 1; |
| //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif); |
| //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif); |
| R_in = R0 - dif; |
| L_in = L0 + dif; /* cannot re-use R0 and L0 here */ |
| if ((uint)R_in > 255) |
| { |
| tmp = ~((int)R_in >> 31); |
| R_in = tmp & 255; |
| } |
| if ((uint)L_in > 255) |
| { |
| tmp = ~((int)L_in >> 31); |
| L_in = tmp & 255; |
| } |
| *ptr1-- = L_in; |
| *ptr++ = R_in; |
| |
| if (C0 != 0) // Multiple zeros in the clip tables |
| { |
| if (ap < 0) //SrcPtr[-inc2] += IClip(-C0, C0,(L2 + ((RL0 + 1) >> 1) - (L1<<1)) >> 1); |
| { |
| L2 = (L2 + ((R0 + L0 + 1) >> 1) - (L1 << 1)) >> 1; |
| tmp = L2 + C0; |
| if ((uint)tmp > (uint)C0 << 1) |
| { |
| tmp = ~(tmp >> 31); |
| L2 = (tmp & (C0 << 1)) - C0; |
| } |
| *ptr1 += L2; |
| } |
| |
| if (aq < 0) // SrcPtr[inc] += IClip(-C0, C0,(R2 + ((RL0 + 1) >> 1) - (R1<<1)) >> 1); |
| { |
| R2 = (R2 + ((R0 + L0 + 1) >> 1) - (R1 << 1)) >> 1; |
| tmp = R2 + C0; |
| if ((uint)tmp > (uint)C0 << 1) |
| { |
| tmp = ~(tmp >> 31); |
| R2 = (tmp & (C0 << 1)) - C0; |
| } |
| *ptr += R2; |
| } |
| } |
| |
| } /* if(tmp < 0) */ |
| |
| } /* end of: if((Strng = Strength[pel >> 2])) */ |
| |
| SrcPtr += pitch; // Increment to next set of pixel |
| |
| } /* for(pel=0; pel<16; pel++) */ |
| |
| } /* else if(Strength[0] == 4) */ |
| |
| } |
| |
| void EdgeLoop_Chroma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch) |
| { |
| int pel, Strng; |
| int c0, dif; |
| int L1, L0, R0, R1, tmp, tmp1; |
| uint8 *ptr; |
| uint R_in, L_in; |
| |
| |
| for (pel = 0; pel < 16; pel++) |
| { |
| Strng = Strength[pel>>2]; |
| if (Strng) |
| { |
| // Read 8 pels |
| R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0} |
| L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3} |
| R1 = (R_in >> 8) & 0xff; |
| R0 = R_in & 0xff; |
| L0 = L_in >> 24; |
| L1 = (L_in >> 16) & 0xff; |
| |
| // |R0 - R1| < Beta |
| tmp1 = R0 - R1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp = (tmp1 - Beta); |
| |
| //|L0 - L1| < Beta |
| tmp1 = L0 - L1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Beta); |
| |
| //|R0 - L0| < Alpha |
| tmp1 = R0 - L0; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Alpha); |
| |
| if (tmp < 0) |
| { |
| ptr = SrcPtr; |
| if (Strng == 4) /* INTRA strong filtering */ |
| { |
| *ptr-- = ((R1 << 1) + R0 + L1 + 2) >> 2; |
| *ptr = ((L1 << 1) + L0 + R1 + 2) >> 2; |
| } |
| else /* normal filtering */ |
| { |
| c0 = clipTable[Strng] + 1; |
| //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3); |
| dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3; |
| tmp = dif + c0; |
| if ((uint)tmp > (uint)c0 << 1) |
| { |
| tmp = ~(tmp >> 31); |
| dif = (tmp & (c0 << 1)) - c0; |
| } |
| |
| //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif); |
| //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif); |
| L0 += dif; |
| R0 -= dif; |
| if ((uint)L0 > 255) |
| { |
| tmp = ~(L0 >> 31); |
| L0 = tmp & 255; |
| } |
| if ((uint)R0 > 255) |
| { |
| tmp = ~(R0 >> 31); |
| R0 = tmp & 255; |
| } |
| |
| *ptr-- = R0; |
| *ptr = L0; |
| } |
| } |
| pel ++; |
| SrcPtr += pitch; // Increment to next set of pixel |
| |
| } /* end of: if((Strng = Strength[pel >> 2])) */ |
| else |
| { |
| pel += 3; |
| SrcPtr += (pitch << 1); //PtrInc << 1; |
| } |
| |
| } /* end of: for(pel=0; pel<16; pel++) */ |
| } |
| |
| |
| void EdgeLoop_Chroma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch) |
| { |
| int pel, Strng; |
| int c0, dif; |
| int L1, L0, R0, R1, tmp, tmp1; |
| |
| for (pel = 0; pel < 16; pel++) |
| { |
| Strng = Strength[pel>>2]; |
| if (Strng) |
| { |
| R0 = SrcPtr[0]; |
| L0 = SrcPtr[-pitch]; |
| L1 = SrcPtr[-(pitch<<1)]; //inc2 |
| R1 = SrcPtr[pitch]; |
| |
| // |R0 - R1| < Beta |
| tmp1 = R0 - R1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp = (tmp1 - Beta); |
| |
| //|L0 - L1| < Beta |
| tmp1 = L0 - L1; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Beta); |
| |
| //|R0 - L0| < Alpha |
| tmp1 = R0 - L0; |
| if (tmp1 < 0) tmp1 = -tmp1; |
| tmp &= (tmp1 - Alpha); |
| |
| if (tmp < 0) |
| { |
| if (Strng == 4) /* INTRA strong filtering */ |
| { |
| SrcPtr[0] = ((R1 << 1) + R0 + L1 + 2) >> 2; |
| SrcPtr[-pitch] = ((L1 << 1) + L0 + R1 + 2) >> 2; |
| } |
| else /* normal filtering */ |
| { |
| c0 = clipTable[Strng] + 1; |
| //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3); |
| dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3; |
| tmp = dif + c0; |
| if ((uint)tmp > (uint)c0 << 1) |
| { |
| tmp = ~(tmp >> 31); |
| dif = (tmp & (c0 << 1)) - c0; |
| } |
| |
| //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif); |
| //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif); |
| L0 += dif; |
| R0 -= dif; |
| if ((uint)L0 > 255) |
| { |
| tmp = ~(L0 >> 31); |
| L0 = tmp & 255; |
| } |
| if ((uint)R0 > 255) |
| { |
| tmp = ~(R0 >> 31); |
| R0 = tmp & 255; |
| } |
| SrcPtr[0] = R0; |
| SrcPtr[-pitch] = L0; |
| } |
| } |
| |
| pel ++; |
| SrcPtr ++; // Increment to next set of pixel |
| |
| } /* end of: if((Strng = Strength[pel >> 2])) */ |
| else |
| { |
| pel += 3; |
| SrcPtr += 2; |
| } |
| |
| } /* end of: for(pel=0; pel<16; pel++) */ |
| } |
| |
| |
| |
| |
