diff options
Diffstat (limited to 'vp8/encoder/rdopt.c')
| -rw-r--r-- | vp8/encoder/rdopt.c | 373 |
1 files changed, 366 insertions, 7 deletions
diff --git a/vp8/encoder/rdopt.c b/vp8/encoder/rdopt.c index 8be0c9a48..74f7f464c 100644 --- a/vp8/encoder/rdopt.c +++ b/vp8/encoder/rdopt.c @@ -1156,7 +1156,7 @@ static int vp8_rd_pick_best_mbsegmentation(VP8_COMP *cpi, MACROBLOCK *x, MV *bes bestsme = vp8_hex_search(x, c, e, best_ref_mv, &mode_mv[NEW4X4], step_param, sadpb/*x->errorperbit*/, &num00, v_fn_ptr, x->mvsadcost, mvcost); else { - bestsme = cpi->diamond_search_sad(x, c, e, best_ref_mv, &mode_mv[NEW4X4], step_param, sadpb / 2/*x->errorperbit*/, &num00, v_fn_ptr, x->mvsadcost, mvcost); + bestsme = cpi->diamond_search_sad(x, c, e, best_ref_mv, &mode_mv[NEW4X4], step_param, sadpb / 2/*x->errorperbit*/, &num00, v_fn_ptr, x->mvsadcost, mvcost, best_ref_mv); n = num00; num00 = 0; @@ -1169,7 +1169,7 @@ static int vp8_rd_pick_best_mbsegmentation(VP8_COMP *cpi, MACROBLOCK *x, MV *bes num00--; else { - thissme = cpi->diamond_search_sad(x, c, e, best_ref_mv, &temp_mv, step_param + n, sadpb / 2/*x->errorperbit*/, &num00, v_fn_ptr, x->mvsadcost, mvcost); + thissme = cpi->diamond_search_sad(x, c, e, best_ref_mv, &temp_mv, step_param + n, sadpb / 2/*x->errorperbit*/, &num00, v_fn_ptr, x->mvsadcost, mvcost, best_ref_mv); if (thissme < bestsme) { @@ -1184,7 +1184,7 @@ static int vp8_rd_pick_best_mbsegmentation(VP8_COMP *cpi, MACROBLOCK *x, MV *bes // Should we do a full search (best quality only) if ((compressor_speed == 0) && (bestsme >> sseshift) > 4000) { - thissme = cpi->full_search_sad(x, c, e, best_ref_mv, sadpb / 4, 16, v_fn_ptr, x->mvcost, x->mvsadcost); + thissme = cpi->full_search_sad(x, c, e, best_ref_mv, sadpb / 4, 16, v_fn_ptr, x->mvcost, x->mvsadcost, best_ref_mv); if (thissme < bestsme) { @@ -1305,6 +1305,273 @@ static int vp8_rd_pick_best_mbsegmentation(VP8_COMP *cpi, MACROBLOCK *x, MV *bes } + +///////////////////////// +static void mv_bias(const MODE_INFO *x, int refframe, int_mv *mvp, const int *ref_frame_sign_bias) +{ + MV xmv; + xmv = x->mbmi.mv.as_mv; + + if (ref_frame_sign_bias[x->mbmi.ref_frame] != ref_frame_sign_bias[refframe]) + { + xmv.row *= -1; + xmv.col *= -1; + } + + mvp->as_mv = xmv; +} + +static void lf_mv_bias(const int lf_ref_frame_sign_bias, int refframe, int_mv *mvp, const int *ref_frame_sign_bias) +{ + MV xmv; + xmv = mvp->as_mv; + + if (lf_ref_frame_sign_bias != ref_frame_sign_bias[refframe]) + { + xmv.row *= -1; + xmv.col *= -1; + } + + mvp->as_mv = xmv; +} + +static void vp8_clamp_mv(MV *mv, const MACROBLOCKD *xd) +{ + if (mv->col < (xd->mb_to_left_edge - LEFT_TOP_MARGIN)) + mv->col = xd->mb_to_left_edge - LEFT_TOP_MARGIN; + else if (mv->col > xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN) + mv->col = xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN; + + if (mv->row < (xd->mb_to_top_edge - LEFT_TOP_MARGIN)) + mv->row = xd->mb_to_top_edge - LEFT_TOP_MARGIN; + else if (mv->row > xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN) + mv->row = xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN; +} + +static void swap(int *x,int *y) +{ + int tmp; + + tmp = *x; + *x = *y; + *y = tmp; +} + +static void quicksortmv(int arr[],int left, int right) +{ + int lidx,ridx,pivot; + + lidx = left; + ridx = right; + + if( left < right) + { + pivot = (left + right)/2; + + while(lidx <=pivot && ridx >=pivot) + { + while(arr[lidx] < arr[pivot] && lidx <= pivot) + lidx++; + while(arr[ridx] > arr[pivot] && ridx >= pivot) + ridx--; + swap(&arr[lidx], &arr[ridx]); + lidx++; + ridx--; + if(lidx-1 == pivot) + { + ridx++; + pivot = ridx; + } + else if(ridx+1 == pivot) + { + lidx--; + pivot = lidx; + } + } + quicksortmv(arr, left, pivot - 1); + quicksortmv(arr, pivot + 1, right); + } +} + +static void quicksortsad(int arr[],int idx[], int left, int right) +{ + int lidx,ridx,pivot; + + lidx = left; + ridx = right; + + if( left < right) + { + pivot = (left + right)/2; + + while(lidx <=pivot && ridx >=pivot) + { + while(arr[lidx] < arr[pivot] && lidx <= pivot) + lidx++; + while(arr[ridx] > arr[pivot] && ridx >= pivot) + ridx--; + swap(&arr[lidx], &arr[ridx]); + swap(&idx[lidx], &idx[ridx]); + lidx++; + ridx--; + if(lidx-1 == pivot) + { + ridx++; + pivot = ridx; + } + else if(ridx+1 == pivot) + { + lidx--; + pivot = lidx; + } + } + quicksortsad(arr, idx, left, pivot - 1); + quicksortsad(arr, idx, pivot + 1, right); + } +} + +//The improved MV prediction +static void vp8_mv_pred +( + VP8_COMP *cpi, + MACROBLOCKD *xd, + const MODE_INFO *here, + MV *mvp, + int refframe, + int *ref_frame_sign_bias, + int *sr, + int near_sadidx[] +) +{ + const MODE_INFO *above = here - xd->mode_info_stride; + const MODE_INFO *left = here - 1; + const MODE_INFO *aboveleft = above - 1; + int_mv near_mvs[7]; + int near_ref[7]; + int_mv mv; + int vcnt=0; + int find=0; + int mb_offset; + + int mvx[7]; + int mvy[7]; + int i; + + mv.as_int = 0; + + if(here->mbmi.ref_frame != INTRA_FRAME) + { + near_mvs[0].as_int = near_mvs[1].as_int = near_mvs[2].as_int = near_mvs[3].as_int = near_mvs[4].as_int = near_mvs[5].as_int = near_mvs[6].as_int = 0; + near_ref[0] = near_ref[1] = near_ref[2] = near_ref[3] = near_ref[4] = near_ref[5] = near_ref[6] = 0; + + // read in 3 nearby block's MVs from current frame as prediction candidates. + if (above->mbmi.ref_frame != INTRA_FRAME) + { + near_mvs[vcnt].as_int = above->mbmi.mv.as_int; + mv_bias(above, refframe, &near_mvs[vcnt], ref_frame_sign_bias); + near_ref[vcnt] = above->mbmi.ref_frame; + } + vcnt++; + if (left->mbmi.ref_frame != INTRA_FRAME) + { + near_mvs[vcnt].as_int = left->mbmi.mv.as_int; + mv_bias(left, refframe, &near_mvs[vcnt], ref_frame_sign_bias); + near_ref[vcnt] = left->mbmi.ref_frame; + } + vcnt++; + if (aboveleft->mbmi.ref_frame != INTRA_FRAME) + { + near_mvs[vcnt].as_int = aboveleft->mbmi.mv.as_int; + mv_bias(aboveleft, refframe, &near_mvs[vcnt], ref_frame_sign_bias); + near_ref[vcnt] = aboveleft->mbmi.ref_frame; + } + vcnt++; + + // read in 4 nearby block's MVs from last frame. + if(cpi->common.last_frame_type != KEY_FRAME) + { + mb_offset = (-xd->mb_to_top_edge/128 + 1) * (xd->mode_info_stride) + (-xd->mb_to_left_edge/128 +1) ; + + // current in last frame + if (cpi->lf_ref_frame[mb_offset] != INTRA_FRAME) + { + near_mvs[vcnt].as_int = cpi->lfmv[mb_offset].as_int; + lf_mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset], refframe, &near_mvs[vcnt], ref_frame_sign_bias); + near_ref[vcnt] = cpi->lf_ref_frame[mb_offset]; + } + vcnt++; + + // above in last frame + if (cpi->lf_ref_frame[mb_offset - xd->mode_info_stride] != INTRA_FRAME) + { + near_mvs[vcnt].as_int = cpi->lfmv[mb_offset - xd->mode_info_stride].as_int; + lf_mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset - xd->mode_info_stride], refframe, &near_mvs[vcnt], ref_frame_sign_bias); + near_ref[vcnt] = cpi->lf_ref_frame[mb_offset - xd->mode_info_stride]; + } + vcnt++; + + // left in last frame + if (cpi->lf_ref_frame[mb_offset-1] != INTRA_FRAME) + { + near_mvs[vcnt].as_int = cpi->lfmv[mb_offset -1].as_int; + lf_mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset -1], refframe, &near_mvs[vcnt], ref_frame_sign_bias); + near_ref[vcnt] = cpi->lf_ref_frame[mb_offset - 1]; + } + vcnt++; + + // aboveleft in last frame + if (cpi->lf_ref_frame[mb_offset - xd->mode_info_stride -1] != INTRA_FRAME) + { + near_mvs[vcnt].as_int = cpi->lfmv[mb_offset - xd->mode_info_stride -1].as_int; + lf_mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset - xd->mode_info_stride -1], refframe, &near_mvs[vcnt], ref_frame_sign_bias); + near_ref[vcnt] = cpi->lf_ref_frame[mb_offset - xd->mode_info_stride -1]; + } + vcnt++; + } + + for(i=0; i< vcnt; i++) + { + if(near_ref[near_sadidx[i]] != INTRA_FRAME) + { + if(here->mbmi.ref_frame == near_ref[near_sadidx[i]]) + { + mv.as_int = near_mvs[near_sadidx[i]].as_int; + find = 1; + if(vcnt<2) + *sr = 4; + else if (vcnt<4) + *sr = 3; + else + *sr = 2; + break; + } + } + } + + if(!find) + { + for(i=0; i<vcnt; i++) + { + mvx[i] = near_mvs[i].as_mv.row; + mvy[i] = near_mvs[i].as_mv.col; + } + + quicksortmv (mvx, 0, vcnt-1); + quicksortmv (mvy, 0, vcnt-1); + mv.as_mv.row = mvx[vcnt/2]; + mv.as_mv.col = mvy[vcnt/2]; + + find = 1; + //sr is set to 0 to allow calling function to decide the search range. + *sr = 0; + } + } + + /* Set up return values */ + *mvp = mv.as_mv; + vp8_clamp_mv(mvp, xd); +} + int vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra) { BLOCK *b = &x->block[0]; @@ -1342,6 +1609,12 @@ int vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int int tteob = 0; int force_no_skip = 0; + MV mvp; + int near_sad[7]; // 0-cf above, 1-cf left, 2-cf aboveleft, 3-lf current, 4-lf above, 5-lf left, 6-lf aboveleft + int near_sadidx[7] = {0, 1, 2, 3, 4, 5, 6}; + int saddone=0; + int sr=0; //search range got from mv_pred(). It uses step_param levels. (0-7) + *returnintra = INT_MAX; vpx_memset(&best_mbmode, 0, sizeof(best_mbmode)); // clean @@ -1509,6 +1782,72 @@ int vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int &mode_mv[NEARESTMV], &mode_mv[NEARMV], &best_ref_mv, mdcounts, x->e_mbd.mode_info_context->mbmi.ref_frame, cpi->common.ref_frame_sign_bias); + if(x->e_mbd.mode_info_context->mbmi.mode == NEWMV) + { + if(!saddone) + { + //calculate sad for current frame 3 nearby MBs. + if( xd->mb_to_top_edge==0 && xd->mb_to_left_edge ==0) + { + near_sad[0] = near_sad[1] = near_sad[2] = INT_MAX; + }else if(xd->mb_to_top_edge==0) + { //only has left MB for sad calculation. + near_sad[0] = near_sad[2] = INT_MAX; + near_sad[1] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, xd->dst.y_buffer - 16,xd->dst.y_stride, 0x7fffffff); + }else if(xd->mb_to_left_edge ==0) + { //only has left MB for sad calculation. + near_sad[1] = near_sad[2] = INT_MAX; + near_sad[0] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, xd->dst.y_buffer - xd->dst.y_stride *16,xd->dst.y_stride, 0x7fffffff); + }else + { + near_sad[0] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, xd->dst.y_buffer - xd->dst.y_stride *16,xd->dst.y_stride, 0x7fffffff); + near_sad[1] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, xd->dst.y_buffer - 16,xd->dst.y_stride, 0x7fffffff); + near_sad[2] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, xd->dst.y_buffer - xd->dst.y_stride *16 -16,xd->dst.y_stride, 0x7fffffff); + } + + if(cpi->common.last_frame_type != KEY_FRAME) + { + //calculate sad for last frame 4 nearby MBs. + unsigned char *pre_y_buffer = cpi->common.yv12_fb[cpi->common.lst_fb_idx].y_buffer + recon_yoffset; + int pre_y_stride = cpi->common.yv12_fb[cpi->common.lst_fb_idx].y_stride; + + if( xd->mb_to_top_edge==0 && xd->mb_to_left_edge ==0) + { + near_sad[4] = near_sad[5] = near_sad[6] = INT_MAX; + near_sad[3] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer, pre_y_stride, 0x7fffffff); + }else if(xd->mb_to_top_edge==0) + { //only has left MB for sad calculation. + near_sad[4] = near_sad[6] = INT_MAX; + near_sad[3] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer, pre_y_stride, 0x7fffffff); + near_sad[5] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer - 16, pre_y_stride, 0x7fffffff); + }else if(xd->mb_to_left_edge ==0) + { //only has left MB for sad calculation. + near_sad[5] = near_sad[6] = INT_MAX; + near_sad[3] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer, pre_y_stride, 0x7fffffff); + near_sad[4] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer - pre_y_stride *16, pre_y_stride, 0x7fffffff); + }else + { + near_sad[3] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer, pre_y_stride, 0x7fffffff); + near_sad[4] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer - pre_y_stride *16, pre_y_stride, 0x7fffffff); + near_sad[5] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer - 16, pre_y_stride, 0x7fffffff); + near_sad[6] = cpi->fn_ptr[BLOCK_16X16].sdf(x->src.y_buffer, x->src.y_stride, pre_y_buffer - pre_y_stride *16 -16, pre_y_stride, 0x7fffffff); + } + } + + if(cpi->common.last_frame_type != KEY_FRAME) + { + quicksortsad(near_sad, near_sadidx, 0, 6); + }else + { + quicksortsad(near_sad, near_sadidx, 0, 2); + } + + saddone = 1; + } + + vp8_mv_pred(cpi, &x->e_mbd, x->e_mbd.mode_info_context, &mvp, + x->e_mbd.mode_info_context->mbmi.ref_frame, cpi->common.ref_frame_sign_bias, &sr, &near_sadidx[0]); + } // Estimate the reference frame signaling cost and add it to the rolling cost variable. frame_cost = ref_frame_cost[x->e_mbd.mode_info_context->mbmi.ref_frame]; @@ -1696,6 +2035,10 @@ int vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int int further_steps; int n; + //adjust search range according to sr from mv prediction + if(sr > step_param) + step_param = sr; + // Work out how long a search we should do search_range = MAXF(abs(best_ref_mv.col), abs(best_ref_mv.row)) >> 3; @@ -1716,7 +2059,7 @@ int vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int } else { - bestsme = cpi->diamond_search_sad(x, b, d, &best_ref_mv, &d->bmi.mv.as_mv, step_param, sadpb / 2/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], x->mvsadcost, x->mvcost); //sadpb < 9 + bestsme = cpi->diamond_search_sad(x, b, d, &mvp, &d->bmi.mv.as_mv, step_param, sadpb / 2/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], x->mvsadcost, x->mvcost, &best_ref_mv); //sadpb < 9 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row; mode_mv[NEWMV].col = d->bmi.mv.as_mv.col; @@ -1735,7 +2078,7 @@ int vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int num00--; else { - thissme = cpi->diamond_search_sad(x, b, d, &best_ref_mv, &d->bmi.mv.as_mv, step_param + n, sadpb / 4/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], x->mvsadcost, x->mvcost); //sadpb = 9 + thissme = cpi->diamond_search_sad(x, b, d, &mvp, &d->bmi.mv.as_mv, step_param + n, sadpb / 4/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], x->mvsadcost, x->mvcost, &best_ref_mv); //sadpb = 9 if (thissme < bestsme) { @@ -1759,9 +2102,14 @@ int vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int { int thissme; int full_flag_thresh = 0; + MV full_mvp; + + full_mvp.row = d->bmi.mv.as_mv.row <<3; // use diamond search result as full search staring point + full_mvp.col = d->bmi.mv.as_mv.col <<3; // Update x->vector_range based on best vector found in step search - search_range = MAXF(abs(d->bmi.mv.as_mv.row), abs(d->bmi.mv.as_mv.col)); + search_range = MAXF(abs((mvp.row>>3) - d->bmi.mv.as_mv.row), abs((mvp.col>>3) - d->bmi.mv.as_mv.col)); + //search_range *= 1.4; //didn't improve PSNR if (search_range > x->vector_range) x->vector_range = search_range; @@ -1770,9 +2118,20 @@ int vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int // Apply limits search_range = (search_range > cpi->sf.max_fs_radius) ? cpi->sf.max_fs_radius : search_range; + + //add this to reduce full search range. + if(sr<=3 && search_range > 8) search_range = 8; + { int sadpb = x->sadperbit16 >> 2; - thissme = cpi->full_search_sad(x, b, d, &best_ref_mv, sadpb, search_range, &cpi->fn_ptr[BLOCK_16X16], x->mvcost, x->mvsadcost); + thissme = cpi->full_search_sad(x, b, d, &full_mvp, sadpb, search_range, &cpi->fn_ptr[BLOCK_16X16], x->mvcost, x->mvsadcost,&best_ref_mv); + /* + MV dia_ref_mv; + dia_ref_mv.row = d->bmi.mv.as_mv.row << 3; + dia_ref_mv.col = d->bmi.mv.as_mv.col << 3; + thissme = cpi->full_search_sad(x, b, d, &dia_ref_mv, sadpb, search_range, &cpi->fn_ptr[BLOCK_16X16], x->mvcost, x->mvsadcost,&best_ref_mv); + */ + } // Barrier threshold to initiating full search |