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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/source/h264bsd_inter_prediction.c')
| -rwxr-xr-x | media/libstagefright/codecs/on2/h264dec/source/h264bsd_inter_prediction.c | 1027 |
1 files changed, 1027 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_inter_prediction.c b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_inter_prediction.c new file mode 100755 index 0000000..2a81c4a --- /dev/null +++ b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_inter_prediction.c @@ -0,0 +1,1027 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * 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. + */ + +/*------------------------------------------------------------------------------ + + Table of contents + + 1. Include headers + 2. External compiler flags + 3. Module defines + 4. Local function prototypes + 5. Functions + h264bsdInterPrediction + MvPrediction16x16 + MvPrediction16x8 + MvPrediction8x16 + MvPrediction8x8 + MvPrediction + MedianFilter + GetInterNeighbour + GetPredictionMv + +------------------------------------------------------------------------------*/ + +/*------------------------------------------------------------------------------ + 1. Include headers +------------------------------------------------------------------------------*/ + +#include "h264bsd_inter_prediction.h" +#include "h264bsd_neighbour.h" +#include "h264bsd_util.h" +#include "h264bsd_reconstruct.h" +#include "h264bsd_dpb.h" + +/*------------------------------------------------------------------------------ + 2. External compiler flags +-------------------------------------------------------------------------------- + +-------------------------------------------------------------------------------- + 3. Module defines +------------------------------------------------------------------------------*/ + +typedef struct +{ + u32 available; + u32 refIndex; + mv_t mv; +} interNeighbour_t; + +/*------------------------------------------------------------------------------ + 4. Local function prototypes +------------------------------------------------------------------------------*/ + +static u32 MvPrediction16x16(mbStorage_t *pMb, mbPred_t *mbPred, + dpbStorage_t *dpb); +static u32 MvPrediction16x8(mbStorage_t *pMb, mbPred_t *mbPred, + dpbStorage_t *dpb); +static u32 MvPrediction8x16(mbStorage_t *pMb, mbPred_t *mbPred, + dpbStorage_t *dpb); +static u32 MvPrediction8x8(mbStorage_t *pMb, subMbPred_t *subMbPred, + dpbStorage_t *dpb); +static u32 MvPrediction(mbStorage_t *pMb, subMbPred_t *subMbPred, + u32 mbPartIdx, u32 subMbPartIdx); +static i32 MedianFilter(i32 a, i32 b, i32 c); + +static void GetInterNeighbour(u32 sliceId, mbStorage_t *nMb, + interNeighbour_t *n, u32 index); +static void GetPredictionMv(mv_t *mv, interNeighbour_t *a, u32 refIndex); + +static const neighbour_t N_A_SUB_PART[4][4][4] = { + { { {MB_A,5}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,5}, {MB_A,7}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,5}, {MB_CURR,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,5}, {MB_CURR,0}, {MB_A,7}, {MB_CURR,2} } }, + + { { {MB_CURR,1}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,1}, {MB_CURR,3}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,1}, {MB_CURR,4}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,1}, {MB_CURR,4}, {MB_CURR,3}, {MB_CURR,6} } }, + + { { {MB_A,13}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,13}, {MB_A,15}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,13}, {MB_CURR,8}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,13}, {MB_CURR,8}, {MB_A,15}, {MB_CURR,10} } }, + + { { {MB_CURR,9}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,9}, {MB_CURR,11}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,9}, {MB_CURR,12}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,9}, {MB_CURR,12}, {MB_CURR,11}, {MB_CURR,14} } } }; + +static const neighbour_t N_B_SUB_PART[4][4][4] = { + { { {MB_B,10}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,10}, {MB_CURR,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,10}, {MB_B,11}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,10}, {MB_B,11}, {MB_CURR,0}, {MB_CURR,1} } }, + + { { {MB_B,14}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,14}, {MB_CURR,4}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,14}, {MB_B,15}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,14}, {MB_B,15}, {MB_CURR,4}, {MB_CURR,5} } }, + + { { {MB_CURR,2}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,2}, {MB_CURR,8}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,2}, {MB_CURR,3}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,2}, {MB_CURR,3}, {MB_CURR,8}, {MB_CURR,9} } }, + + { { {MB_CURR,6}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,6}, {MB_CURR,12}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,6}, {MB_CURR,7}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,6}, {MB_CURR,7}, {MB_CURR,12}, {MB_CURR,13} } } }; + +static const neighbour_t N_C_SUB_PART[4][4][4] = { + { { {MB_B,14}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,14}, {MB_NA,4}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,11}, {MB_B,14}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,11}, {MB_B,14}, {MB_CURR,1}, {MB_NA,4} } }, + + { { {MB_C,10}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_C,10}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,15}, {MB_C,10}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,15}, {MB_C,10}, {MB_CURR,5}, {MB_NA,0} } }, + + { { {MB_CURR,6}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,6}, {MB_NA,12}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,3}, {MB_CURR,6}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,3}, {MB_CURR,6}, {MB_CURR,9}, {MB_NA,12} } }, + + { { {MB_NA,2}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_NA,2}, {MB_NA,8}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,7}, {MB_NA,2}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,7}, {MB_NA,2}, {MB_CURR,13}, {MB_NA,8} } } }; + +static const neighbour_t N_D_SUB_PART[4][4][4] = { + { { {MB_D,15}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_D,15}, {MB_A,5}, {MB_NA,0}, {MB_NA,0} }, + { {MB_D,15}, {MB_B,10}, {MB_NA,0}, {MB_NA,0} }, + { {MB_D,15}, {MB_B,10}, {MB_A,5}, {MB_CURR,0} } }, + + { { {MB_B,11}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,11}, {MB_CURR,1}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,11}, {MB_B,14}, {MB_NA,0}, {MB_NA,0} }, + { {MB_B,11}, {MB_B,14}, {MB_CURR,1}, {MB_CURR,4} } }, + + { { {MB_A,7}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,7}, {MB_A,13}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,7}, {MB_CURR,2}, {MB_NA,0}, {MB_NA,0} }, + { {MB_A,7}, {MB_CURR,2}, {MB_A,13}, {MB_CURR,8} } }, + + { { {MB_CURR,3}, {MB_NA,0}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,3}, {MB_CURR,9}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,3}, {MB_CURR,6}, {MB_NA,0}, {MB_NA,0} }, + { {MB_CURR,3}, {MB_CURR,6}, {MB_CURR,9}, {MB_CURR,12} } } }; + + +#ifdef H264DEC_OMXDL + +/*------------------------------------------------------------------------------ + + Function: h264bsdInterPrediction + + Functional description: + Processes one inter macroblock. Performs motion vector prediction + and reconstructs prediction macroblock. Writes the final macroblock + (prediction + residual) into the output image (currImage) + + Inputs: + pMb pointer to macroblock specific information + pMbLayer pointer to current macroblock data from stream + dpb pointer to decoded picture buffer + mbNum current macroblock number + currImage pointer to output image + data pointer where predicted macroblock will be stored + + Outputs: + pMb structure is updated with current macroblock + currImage current macroblock is written into image + data prediction is stored here + + Returns: + HANTRO_OK success + HANTRO_NOK error in motion vector prediction + +------------------------------------------------------------------------------*/ +u32 h264bsdInterPrediction(mbStorage_t *pMb, macroblockLayer_t *pMbLayer, + dpbStorage_t *dpb, u32 mbNum, image_t *currImage, u8 *data) +{ + +/* Variables */ + + u32 i; + u32 x, y; + u32 colAndRow; + subMbPartMode_e subPartMode; + image_t refImage; + u8 fillBuff[32*21 + 15 + 32]; + u8 *pFill; + u32 tmp; +/* Code */ + + ASSERT(pMb); + ASSERT(h264bsdMbPartPredMode(pMb->mbType) == PRED_MODE_INTER); + ASSERT(pMbLayer); + + /* 16-byte alignment */ + pFill = ALIGN(fillBuff, 16); + + /* set row bits 15:0 */ + colAndRow = mbNum / currImage->width; + /*set col to bits 31:16 */ + colAndRow += (mbNum - colAndRow * currImage->width) << 16; + colAndRow <<= 4; + + refImage.width = currImage->width; + refImage.height = currImage->height; + + switch (pMb->mbType) + { + case P_Skip: + case P_L0_16x16: + if (MvPrediction16x16(pMb, &pMbLayer->mbPred, dpb) != HANTRO_OK) + return(HANTRO_NOK); + refImage.data = pMb->refAddr[0]; + tmp = (0<<24) + (0<<16) + (16<<8) + 16; + h264bsdPredictSamples(data, pMb->mv, &refImage, + colAndRow, tmp, pFill); + break; + + case P_L0_L0_16x8: + if ( MvPrediction16x8(pMb, &pMbLayer->mbPred, dpb) != HANTRO_OK) + return(HANTRO_NOK); + refImage.data = pMb->refAddr[0]; + tmp = (0<<24) + (0<<16) + (16<<8) + 8; + h264bsdPredictSamples(data, pMb->mv, &refImage, + colAndRow, tmp, pFill); + + refImage.data = pMb->refAddr[2]; + tmp = (0<<24) + (8<<16) + (16<<8) + 8; + h264bsdPredictSamples(data, pMb->mv+8, &refImage, + colAndRow, tmp, pFill); + break; + + case P_L0_L0_8x16: + if ( MvPrediction8x16(pMb, &pMbLayer->mbPred, dpb) != HANTRO_OK) + return(HANTRO_NOK); + refImage.data = pMb->refAddr[0]; + tmp = (0<<24) + (0<<16) + (8<<8) + 16; + h264bsdPredictSamples(data, pMb->mv, &refImage, + colAndRow, tmp, pFill); + refImage.data = pMb->refAddr[1]; + tmp = (8<<24) + (0<<16) + (8<<8) + 16; + h264bsdPredictSamples(data, pMb->mv+4, &refImage, + colAndRow, tmp, pFill); + break; + + default: /* P_8x8 and P_8x8ref0 */ + if ( MvPrediction8x8(pMb, &pMbLayer->subMbPred, dpb) != HANTRO_OK) + return(HANTRO_NOK); + for (i = 0; i < 4; i++) + { + refImage.data = pMb->refAddr[i]; + subPartMode = + h264bsdSubMbPartMode(pMbLayer->subMbPred.subMbType[i]); + x = i & 0x1 ? 8 : 0; + y = i < 2 ? 0 : 8; + switch (subPartMode) + { + case MB_SP_8x8: + tmp = (x<<24) + (y<<16) + (8<<8) + 8; + h264bsdPredictSamples(data, pMb->mv+4*i, &refImage, + colAndRow, tmp, pFill); + break; + + case MB_SP_8x4: + tmp = (x<<24) + (y<<16) + (8<<8) + 4; + h264bsdPredictSamples(data, pMb->mv+4*i, &refImage, + colAndRow, tmp, pFill); + tmp = (x<<24) + ((y+4)<<16) + (8<<8) + 4; + h264bsdPredictSamples(data, pMb->mv+4*i+2, &refImage, + colAndRow, tmp, pFill); + break; + + case MB_SP_4x8: + tmp = (x<<24) + (y<<16) + (4<<8) + 8; + h264bsdPredictSamples(data, pMb->mv+4*i, &refImage, + colAndRow, tmp, pFill); + tmp = ((x+4)<<24) + (y<<16) + (4<<8) + 8; + h264bsdPredictSamples(data, pMb->mv+4*i+1, &refImage, + colAndRow, tmp, pFill); + break; + + default: + tmp = (x<<24) + (y<<16) + (4<<8) + 4; + h264bsdPredictSamples(data, pMb->mv+4*i, &refImage, + colAndRow, tmp, pFill); + tmp = ((x+4)<<24) + (y<<16) + (4<<8) + 4; + h264bsdPredictSamples(data, pMb->mv+4*i+1, &refImage, + colAndRow, tmp, pFill); + tmp = (x<<24) + ((y+4)<<16) + (4<<8) + 4; + h264bsdPredictSamples(data, pMb->mv+4*i+2, &refImage, + colAndRow, tmp, pFill); + tmp = ((x+4)<<24) + ((y+4)<<16) + (4<<8) + 4; + h264bsdPredictSamples(data, pMb->mv+4*i+3, &refImage, + colAndRow, tmp, pFill); + break; + } + } + break; + } + + /* if decoded flag > 1 -> mb has already been successfully decoded and + * written to output -> do not write again */ + if (pMb->decoded > 1) + return HANTRO_OK; + + return(HANTRO_OK); +} + +#else /* H264DEC_OMXDL */ + +/*------------------------------------------------------------------------------ + + Function: h264bsdInterPrediction + + Functional description: + Processes one inter macroblock. Performs motion vector prediction + and reconstructs prediction macroblock. Writes the final macroblock + (prediction + residual) into the output image (currImage) + + Inputs: + pMb pointer to macroblock specific information + pMbLayer pointer to current macroblock data from stream + dpb pointer to decoded picture buffer + mbNum current macroblock number + currImage pointer to output image + data pointer where predicted macroblock will be stored + + Outputs: + pMb structure is updated with current macroblock + currImage current macroblock is written into image + data prediction is stored here + + Returns: + HANTRO_OK success + HANTRO_NOK error in motion vector prediction + +------------------------------------------------------------------------------*/ +u32 h264bsdInterPrediction(mbStorage_t *pMb, macroblockLayer_t *pMbLayer, + dpbStorage_t *dpb, u32 mbNum, image_t *currImage, u8 *data) +{ + +/* Variables */ + + u32 i; + u32 x, y; + u32 row, col; + subMbPartMode_e subPartMode; + image_t refImage; + +/* Code */ + + ASSERT(pMb); + ASSERT(h264bsdMbPartPredMode(pMb->mbType) == PRED_MODE_INTER); + ASSERT(pMbLayer); + + row = mbNum / currImage->width; + col = mbNum - row * currImage->width; + row *= 16; + col *= 16; + + refImage.width = currImage->width; + refImage.height = currImage->height; + + switch (pMb->mbType) + { + case P_Skip: + case P_L0_16x16: + if (MvPrediction16x16(pMb, &pMbLayer->mbPred, dpb) != HANTRO_OK) + return(HANTRO_NOK); + refImage.data = pMb->refAddr[0]; + h264bsdPredictSamples(data, pMb->mv, &refImage, col, row, 0, 0, + 16, 16); + break; + + case P_L0_L0_16x8: + if ( MvPrediction16x8(pMb, &pMbLayer->mbPred, dpb) != HANTRO_OK) + return(HANTRO_NOK); + refImage.data = pMb->refAddr[0]; + h264bsdPredictSamples(data, pMb->mv, &refImage, col, row, 0, 0, + 16, 8); + refImage.data = pMb->refAddr[2]; + h264bsdPredictSamples(data, pMb->mv+8, &refImage, col, row, 0, 8, + 16, 8); + break; + + case P_L0_L0_8x16: + if ( MvPrediction8x16(pMb, &pMbLayer->mbPred, dpb) != HANTRO_OK) + return(HANTRO_NOK); + refImage.data = pMb->refAddr[0]; + h264bsdPredictSamples(data, pMb->mv, &refImage, col, row, 0, 0, + 8, 16); + refImage.data = pMb->refAddr[1]; + h264bsdPredictSamples(data, pMb->mv+4, &refImage, col, row, 8, 0, + 8, 16); + break; + + default: /* P_8x8 and P_8x8ref0 */ + if ( MvPrediction8x8(pMb, &pMbLayer->subMbPred, dpb) != HANTRO_OK) + return(HANTRO_NOK); + for (i = 0; i < 4; i++) + { + refImage.data = pMb->refAddr[i]; + subPartMode = + h264bsdSubMbPartMode(pMbLayer->subMbPred.subMbType[i]); + x = i & 0x1 ? 8 : 0; + y = i < 2 ? 0 : 8; + switch (subPartMode) + { + case MB_SP_8x8: + h264bsdPredictSamples(data, pMb->mv+4*i, &refImage, + col, row, x, y, 8, 8); + break; + + case MB_SP_8x4: + h264bsdPredictSamples(data, pMb->mv+4*i, &refImage, + col, row, x, y, 8, 4); + h264bsdPredictSamples(data, pMb->mv+4*i+2, &refImage, + col, row, x, y+4, 8, 4); + break; + + case MB_SP_4x8: + h264bsdPredictSamples(data, pMb->mv+4*i, &refImage, + col, row, x, y, 4, 8); + h264bsdPredictSamples(data, pMb->mv+4*i+1, &refImage, + col, row, x+4, y, 4, 8); + break; + + default: + h264bsdPredictSamples(data, pMb->mv+4*i, &refImage, + col, row, x, y, 4, 4); + h264bsdPredictSamples(data, pMb->mv+4*i+1, &refImage, + col, row, x+4, y, 4, 4); + h264bsdPredictSamples(data, pMb->mv+4*i+2, &refImage, + col, row, x, y+4, 4, 4); + h264bsdPredictSamples(data, pMb->mv+4*i+3, &refImage, + col, row, x+4, y+4, 4, 4); + break; + } + } + break; + } + + /* if decoded flag > 1 -> mb has already been successfully decoded and + * written to output -> do not write again */ + if (pMb->decoded > 1) + return HANTRO_OK; + + if (pMb->mbType != P_Skip) + { + h264bsdWriteOutputBlocks(currImage, mbNum, data, + pMbLayer->residual.level); + } + else + { + h264bsdWriteMacroblock(currImage, data); + } + + return(HANTRO_OK); +} +#endif /* H264DEC_OMXDL */ + +/*------------------------------------------------------------------------------ + + Function: MvPrediction16x16 + + Functional description: + Motion vector prediction for 16x16 partition mode + +------------------------------------------------------------------------------*/ + +u32 MvPrediction16x16(mbStorage_t *pMb, mbPred_t *mbPred, dpbStorage_t *dpb) +{ + +/* Variables */ + + mv_t mv; + mv_t mvPred; + interNeighbour_t a[3]; /* A, B, C */ + u32 refIndex; + u8 *tmp; + u32 *tmpMv1, *tmpMv2; + +/* Code */ + + refIndex = mbPred->refIdxL0[0]; + + GetInterNeighbour(pMb->sliceId, pMb->mbA, a, 5); + GetInterNeighbour(pMb->sliceId, pMb->mbB, a+1, 10); + /*lint --e(740) Unusual pointer cast (incompatible indirect types) */ + tmpMv1 = (u32*)(&a[0].mv); /* we test just that both MVs are zero */ + /*lint --e(740) */ + tmpMv2 = (u32*)(&a[1].mv); /* i.e. a[0].mv.hor == 0 && a[0].mv.ver == 0 */ + if (pMb->mbType == P_Skip && + (!a[0].available || !a[1].available || + ( a[0].refIndex == 0 && ((u32)(*tmpMv1) == 0) ) || + ( a[1].refIndex == 0 && ((u32)(*tmpMv2) == 0) ))) + { + mv.hor = mv.ver = 0; + } + else + { + mv = mbPred->mvdL0[0]; + GetInterNeighbour(pMb->sliceId, pMb->mbC, a+2, 10); + if (!a[2].available) + { + GetInterNeighbour(pMb->sliceId, pMb->mbD, a+2, 15); + } + + GetPredictionMv(&mvPred, a, refIndex); + + mv.hor += mvPred.hor; + mv.ver += mvPred.ver; + + /* horizontal motion vector range [-2048, 2047.75] */ + if ((u32)(i32)(mv.hor+8192) >= (16384)) + return(HANTRO_NOK); + + /* vertical motion vector range [-512, 511.75] + * (smaller for low levels) */ + if ((u32)(i32)(mv.ver+2048) >= (4096)) + return(HANTRO_NOK); + } + + tmp = h264bsdGetRefPicData(dpb, refIndex); + if (tmp == NULL) + return(HANTRO_NOK); + + pMb->mv[0] = pMb->mv[1] = pMb->mv[2] = pMb->mv[3] = + pMb->mv[4] = pMb->mv[5] = pMb->mv[6] = pMb->mv[7] = + pMb->mv[8] = pMb->mv[9] = pMb->mv[10] = pMb->mv[11] = + pMb->mv[12] = pMb->mv[13] = pMb->mv[14] = pMb->mv[15] = mv; + + pMb->refPic[0] = refIndex; + pMb->refPic[1] = refIndex; + pMb->refPic[2] = refIndex; + pMb->refPic[3] = refIndex; + pMb->refAddr[0] = tmp; + pMb->refAddr[1] = tmp; + pMb->refAddr[2] = tmp; + pMb->refAddr[3] = tmp; + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: MvPrediction16x8 + + Functional description: + Motion vector prediction for 16x8 partition mode + +------------------------------------------------------------------------------*/ + +u32 MvPrediction16x8(mbStorage_t *pMb, mbPred_t *mbPred, dpbStorage_t *dpb) +{ + +/* Variables */ + + mv_t mv; + mv_t mvPred; + interNeighbour_t a[3]; /* A, B, C */ + u32 refIndex; + u8 *tmp; + +/* Code */ + + mv = mbPred->mvdL0[0]; + refIndex = mbPred->refIdxL0[0]; + + GetInterNeighbour(pMb->sliceId, pMb->mbB, a+1, 10); + + if (a[1].refIndex == refIndex) + mvPred = a[1].mv; + else + { + GetInterNeighbour(pMb->sliceId, pMb->mbA, a, 5); + GetInterNeighbour(pMb->sliceId, pMb->mbC, a+2, 10); + if (!a[2].available) + { + GetInterNeighbour(pMb->sliceId, pMb->mbD, a+2, 15); + } + + GetPredictionMv(&mvPred, a, refIndex); + + } + mv.hor += mvPred.hor; + mv.ver += mvPred.ver; + + /* horizontal motion vector range [-2048, 2047.75] */ + if ((u32)(i32)(mv.hor+8192) >= (16384)) + return(HANTRO_NOK); + + /* vertical motion vector range [-512, 511.75] (smaller for low levels) */ + if ((u32)(i32)(mv.ver+2048) >= (4096)) + return(HANTRO_NOK); + + tmp = h264bsdGetRefPicData(dpb, refIndex); + if (tmp == NULL) + return(HANTRO_NOK); + + pMb->mv[0] = pMb->mv[1] = pMb->mv[2] = pMb->mv[3] = + pMb->mv[4] = pMb->mv[5] = pMb->mv[6] = pMb->mv[7] = mv; + pMb->refPic[0] = refIndex; + pMb->refPic[1] = refIndex; + pMb->refAddr[0] = tmp; + pMb->refAddr[1] = tmp; + + mv = mbPred->mvdL0[1]; + refIndex = mbPred->refIdxL0[1]; + + GetInterNeighbour(pMb->sliceId, pMb->mbA, a, 13); + if (a[0].refIndex == refIndex) + mvPred = a[0].mv; + else + { + a[1].available = HANTRO_TRUE; + a[1].refIndex = pMb->refPic[0]; + a[1].mv = pMb->mv[0]; + + /* c is not available */ + GetInterNeighbour(pMb->sliceId, pMb->mbA, a+2, 7); + + GetPredictionMv(&mvPred, a, refIndex); + + } + mv.hor += mvPred.hor; + mv.ver += mvPred.ver; + + /* horizontal motion vector range [-2048, 2047.75] */ + if ((u32)(i32)(mv.hor+8192) >= (16384)) + return(HANTRO_NOK); + + /* vertical motion vector range [-512, 511.75] (smaller for low levels) */ + if ((u32)(i32)(mv.ver+2048) >= (4096)) + return(HANTRO_NOK); + + tmp = h264bsdGetRefPicData(dpb, refIndex); + if (tmp == NULL) + return(HANTRO_NOK); + + pMb->mv[8] = pMb->mv[9] = pMb->mv[10] = pMb->mv[11] = + pMb->mv[12] = pMb->mv[13] = pMb->mv[14] = pMb->mv[15] = mv; + pMb->refPic[2] = refIndex; + pMb->refPic[3] = refIndex; + pMb->refAddr[2] = tmp; + pMb->refAddr[3] = tmp; + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: MvPrediction8x16 + + Functional description: + Motion vector prediction for 8x16 partition mode + +------------------------------------------------------------------------------*/ + +u32 MvPrediction8x16(mbStorage_t *pMb, mbPred_t *mbPred, dpbStorage_t *dpb) +{ + +/* Variables */ + + mv_t mv; + mv_t mvPred; + interNeighbour_t a[3]; /* A, B, C */ + u32 refIndex; + u8 *tmp; + +/* Code */ + + mv = mbPred->mvdL0[0]; + refIndex = mbPred->refIdxL0[0]; + + GetInterNeighbour(pMb->sliceId, pMb->mbA, a, 5); + + if (a[0].refIndex == refIndex) + mvPred = a[0].mv; + else + { + GetInterNeighbour(pMb->sliceId, pMb->mbB, a+1, 10); + GetInterNeighbour(pMb->sliceId, pMb->mbB, a+2, 14); + if (!a[2].available) + { + GetInterNeighbour(pMb->sliceId, pMb->mbD, a+2, 15); + } + + GetPredictionMv(&mvPred, a, refIndex); + + } + mv.hor += mvPred.hor; + mv.ver += mvPred.ver; + + /* horizontal motion vector range [-2048, 2047.75] */ + if ((u32)(i32)(mv.hor+8192) >= (16384)) + return(HANTRO_NOK); + + /* vertical motion vector range [-512, 511.75] (smaller for low levels) */ + if ((u32)(i32)(mv.ver+2048) >= (4096)) + return(HANTRO_NOK); + + tmp = h264bsdGetRefPicData(dpb, refIndex); + if (tmp == NULL) + return(HANTRO_NOK); + + pMb->mv[0] = pMb->mv[1] = pMb->mv[2] = pMb->mv[3] = + pMb->mv[8] = pMb->mv[9] = pMb->mv[10] = pMb->mv[11] = mv; + pMb->refPic[0] = refIndex; + pMb->refPic[2] = refIndex; + pMb->refAddr[0] = tmp; + pMb->refAddr[2] = tmp; + + mv = mbPred->mvdL0[1]; + refIndex = mbPred->refIdxL0[1]; + + GetInterNeighbour(pMb->sliceId, pMb->mbC, a+2, 10); + if (!a[2].available) + { + GetInterNeighbour(pMb->sliceId, pMb->mbB, a+2, 11); + } + if (a[2].refIndex == refIndex) + mvPred = a[2].mv; + else + { + a[0].available = HANTRO_TRUE; + a[0].refIndex = pMb->refPic[0]; + a[0].mv = pMb->mv[0]; + + GetInterNeighbour(pMb->sliceId, pMb->mbB, a+1, 14); + + GetPredictionMv(&mvPred, a, refIndex); + + } + mv.hor += mvPred.hor; + mv.ver += mvPred.ver; + + /* horizontal motion vector range [-2048, 2047.75] */ + if ((u32)(i32)(mv.hor+8192) >= (16384)) + return(HANTRO_NOK); + + /* vertical motion vector range [-512, 511.75] (smaller for low levels) */ + if ((u32)(i32)(mv.ver+2048) >= (4096)) + return(HANTRO_NOK); + + tmp = h264bsdGetRefPicData(dpb, refIndex); + if (tmp == NULL) + return(HANTRO_NOK); + + pMb->mv[4] = pMb->mv[5] = pMb->mv[6] = pMb->mv[7] = + pMb->mv[12] = pMb->mv[13] = pMb->mv[14] = pMb->mv[15] = mv; + pMb->refPic[1] = refIndex; + pMb->refPic[3] = refIndex; + pMb->refAddr[1] = tmp; + pMb->refAddr[3] = tmp; + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: MvPrediction8x8 + + Functional description: + Motion vector prediction for 8x8 partition mode + +------------------------------------------------------------------------------*/ + +u32 MvPrediction8x8(mbStorage_t *pMb, subMbPred_t *subMbPred, dpbStorage_t *dpb) +{ + +/* Variables */ + + u32 i, j; + u32 numSubMbPart; + +/* Code */ + + for (i = 0; i < 4; i++) + { + numSubMbPart = h264bsdNumSubMbPart(subMbPred->subMbType[i]); + pMb->refPic[i] = subMbPred->refIdxL0[i]; + pMb->refAddr[i] = h264bsdGetRefPicData(dpb, subMbPred->refIdxL0[i]); + if (pMb->refAddr[i] == NULL) + return(HANTRO_NOK); + for (j = 0; j < numSubMbPart; j++) + { + if (MvPrediction(pMb, subMbPred, i, j) != HANTRO_OK) + return(HANTRO_NOK); + } + } + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: MvPrediction + + Functional description: + Perform motion vector prediction for sub-partition + +------------------------------------------------------------------------------*/ + +u32 MvPrediction(mbStorage_t *pMb, subMbPred_t *subMbPred, u32 mbPartIdx, + u32 subMbPartIdx) +{ + +/* Variables */ + + mv_t mv, mvPred; + u32 refIndex; + subMbPartMode_e subMbPartMode; + const neighbour_t *n; + mbStorage_t *nMb; + interNeighbour_t a[3]; /* A, B, C */ + +/* Code */ + + mv = subMbPred->mvdL0[mbPartIdx][subMbPartIdx]; + subMbPartMode = h264bsdSubMbPartMode(subMbPred->subMbType[mbPartIdx]); + refIndex = subMbPred->refIdxL0[mbPartIdx]; + + n = N_A_SUB_PART[mbPartIdx][subMbPartMode]+subMbPartIdx; + nMb = h264bsdGetNeighbourMb(pMb, n->mb); + GetInterNeighbour(pMb->sliceId, nMb, a, n->index); + + n = N_B_SUB_PART[mbPartIdx][subMbPartMode]+subMbPartIdx; + nMb = h264bsdGetNeighbourMb(pMb, n->mb); + GetInterNeighbour(pMb->sliceId, nMb, a+1, n->index); + + n = N_C_SUB_PART[mbPartIdx][subMbPartMode]+subMbPartIdx; + nMb = h264bsdGetNeighbourMb(pMb, n->mb); + GetInterNeighbour(pMb->sliceId, nMb, a+2, n->index); + + if (!a[2].available) + { + n = N_D_SUB_PART[mbPartIdx][subMbPartMode]+subMbPartIdx; + nMb = h264bsdGetNeighbourMb(pMb, n->mb); + GetInterNeighbour(pMb->sliceId, nMb, a+2, n->index); + } + + GetPredictionMv(&mvPred, a, refIndex); + + mv.hor += mvPred.hor; + mv.ver += mvPred.ver; + + /* horizontal motion vector range [-2048, 2047.75] */ + if (((u32)(i32)(mv.hor+8192) >= (16384))) + return(HANTRO_NOK); + + /* vertical motion vector range [-512, 511.75] (smaller for low levels) */ + if (((u32)(i32)(mv.ver+2048) >= (4096))) + return(HANTRO_NOK); + + switch (subMbPartMode) + { + case MB_SP_8x8: + pMb->mv[4*mbPartIdx] = mv; + pMb->mv[4*mbPartIdx + 1] = mv; + pMb->mv[4*mbPartIdx + 2] = mv; + pMb->mv[4*mbPartIdx + 3] = mv; + break; + + case MB_SP_8x4: + pMb->mv[4*mbPartIdx + 2*subMbPartIdx] = mv; + pMb->mv[4*mbPartIdx + 2*subMbPartIdx + 1] = mv; + break; + + case MB_SP_4x8: + pMb->mv[4*mbPartIdx + subMbPartIdx] = mv; + pMb->mv[4*mbPartIdx + subMbPartIdx + 2] = mv; + break; + + case MB_SP_4x4: + pMb->mv[4*mbPartIdx + subMbPartIdx] = mv; + break; + } + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: MedianFilter + + Functional description: + Median filtering for motion vector prediction + +------------------------------------------------------------------------------*/ + +i32 MedianFilter(i32 a, i32 b, i32 c) +{ + +/* Variables */ + + i32 max,min,med; + +/* Code */ + + max = min = med = a; + if (b > max) + { + max = b; + } + else if (b < min) + { + min = b; + } + if (c > max) + { + med = max; + } + else if (c < min) + { + med = min; + } + else + { + med = c; + } + + return(med); +} + +/*------------------------------------------------------------------------------ + + Function: GetInterNeighbour + + Functional description: + Get availability, reference index and motion vector of a neighbour + +------------------------------------------------------------------------------*/ + +void GetInterNeighbour(u32 sliceId, mbStorage_t *nMb, + interNeighbour_t *n, u32 index) +{ + + n->available = HANTRO_FALSE; + n->refIndex = 0xFFFFFFFF; + n->mv.hor = n->mv.ver = 0; + + if (nMb && (sliceId == nMb->sliceId)) + { + u32 tmp; + mv_t tmpMv; + + tmp = nMb->mbType; + n->available = HANTRO_TRUE; + /* MbPartPredMode "inlined" */ + if (tmp <= P_8x8ref0) + { + tmpMv = nMb->mv[index]; + tmp = nMb->refPic[index>>2]; + n->refIndex = tmp; + n->mv = tmpMv; + } + } + +} + +/*------------------------------------------------------------------------------ + + Function: GetPredictionMv + + Functional description: + Compute motion vector predictor based on neighbours A, B and C + +------------------------------------------------------------------------------*/ + +void GetPredictionMv(mv_t *mv, interNeighbour_t *a, u32 refIndex) +{ + + if ( a[1].available || a[2].available || !a[0].available) + { + u32 isA, isB, isC; + isA = (a[0].refIndex == refIndex) ? HANTRO_TRUE : HANTRO_FALSE; + isB = (a[1].refIndex == refIndex) ? HANTRO_TRUE : HANTRO_FALSE; + isC = (a[2].refIndex == refIndex) ? HANTRO_TRUE : HANTRO_FALSE; + + if (((u32)isA+(u32)isB+(u32)isC) != 1) + { + mv->hor = (i16)MedianFilter(a[0].mv.hor, a[1].mv.hor, a[2].mv.hor); + mv->ver = (i16)MedianFilter(a[0].mv.ver, a[1].mv.ver, a[2].mv.ver); + } + else if (isA) + *mv = a[0].mv; + else if (isB) + *mv = a[1].mv; + else + *mv = a[2].mv; + } + else + { + *mv = a[0].mv; + } + +} + + |