From: Yunqing Wang Date: Fri, 3 Dec 2010 16:26:21 +0000 (-0500) Subject: Improve MV prediction accuracy to achieve performance gain X-Git-Tag: 1.0_branch~775^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c3bbb29164239a48d948a7de2d6d8a1d161a5a0e;p=profile%2Fivi%2Flibvpx.git Improve MV prediction accuracy to achieve performance gain Add vp8_mv_pred() to better predict starting MV for NEWMV mode in vp8_rd_pick_inter_mode(). Set different search ranges according to MV prediction accuracy, which improves encoder performance without hurting the quality. Also, as Yaowu suggested, using diamond search result as full search starting point and therefore adjusting(reducing) full search range helps the performance. Change-Id: Ie4a3c8df87e697c1f4f6e2ddb693766bba1b77b6 --- diff --git a/vp8/encoder/firstpass.c b/vp8/encoder/firstpass.c index 8a94fa3..539a28f 100644 --- a/vp8/encoder/firstpass.c +++ b/vp8/encoder/firstpass.c @@ -472,7 +472,7 @@ void vp8_first_pass_motion_search(VP8_COMP *cpi, MACROBLOCK *x, MV *ref_mv, MV * xd->pre.y_buffer = recon_buffer->y_buffer + recon_yoffset; // Initial step/diamond search centred on best mv - tmp_err = cpi->diamond_search_sad(x, b, d, ref_mv, &tmp_mv, step_param, x->errorperbit, &num00, &v_fn_ptr, x->mvsadcost, x->mvcost); + tmp_err = cpi->diamond_search_sad(x, b, d, ref_mv, &tmp_mv, step_param, x->errorperbit, &num00, &v_fn_ptr, x->mvsadcost, x->mvcost, ref_mv); if ( tmp_err < INT_MAX-new_mv_mode_penalty ) tmp_err += new_mv_mode_penalty; @@ -495,7 +495,7 @@ void vp8_first_pass_motion_search(VP8_COMP *cpi, MACROBLOCK *x, MV *ref_mv, MV * num00--; else { - tmp_err = cpi->diamond_search_sad(x, b, d, ref_mv, &tmp_mv, step_param + n, x->errorperbit, &num00, &v_fn_ptr, x->mvsadcost, x->mvcost); + tmp_err = cpi->diamond_search_sad(x, b, d, ref_mv, &tmp_mv, step_param + n, x->errorperbit, &num00, &v_fn_ptr, x->mvsadcost, x->mvcost, ref_mv); if ( tmp_err < INT_MAX-new_mv_mode_penalty ) tmp_err += new_mv_mode_penalty; diff --git a/vp8/encoder/mcomp.c b/vp8/encoder/mcomp.c index bb85afa..b9d86a2 100644 --- a/vp8/encoder/mcomp.c +++ b/vp8/encoder/mcomp.c @@ -913,7 +913,8 @@ int vp8_diamond_search_sad int *num00, vp8_variance_fn_ptr_t *fn_ptr, int *mvsadcost[2], - int *mvcost[2] + int *mvcost[2], + MV *center_mv ) { int i, j, step; @@ -949,7 +950,7 @@ int vp8_diamond_search_sad (ref_row > x->mv_row_min) && (ref_row < x->mv_row_max)) { // Check the starting position - bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, ref_mv, mvsadcost, error_per_bit); + bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, center_mv, mvsadcost, error_per_bit); } // search_param determines the length of the initial step and hence the number of iterations @@ -982,7 +983,7 @@ int vp8_diamond_search_sad { this_mv.row = this_row_offset << 3; this_mv.col = this_col_offset << 3; - thissad += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); + thissad += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); if (thissad < bestsad) { @@ -1013,7 +1014,7 @@ int vp8_diamond_search_sad return INT_MAX; return fn_ptr->vf(what, what_stride, best_address, in_what_stride, (unsigned int *)(&thissad)) - + vp8_mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit); + + vp8_mv_err_cost(&this_mv, center_mv, mvcost, error_per_bit); } int vp8_diamond_search_sadx4 @@ -1028,7 +1029,8 @@ int vp8_diamond_search_sadx4 int *num00, vp8_variance_fn_ptr_t *fn_ptr, int *mvsadcost[2], - int *mvcost[2] + int *mvcost[2], + MV *center_mv ) { int i, j, step; @@ -1064,7 +1066,7 @@ int vp8_diamond_search_sadx4 (ref_row > x->mv_row_min) && (ref_row < x->mv_row_max)) { // Check the starting position - bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, ref_mv, mvsadcost, error_per_bit); + bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, center_mv, mvsadcost, error_per_bit); } // search_param determines the length of the initial step and hence the number of iterations @@ -1108,7 +1110,7 @@ int vp8_diamond_search_sadx4 { this_mv.row = (best_mv->row + ss[i].mv.row) << 3; this_mv.col = (best_mv->col + ss[i].mv.col) << 3; - sad_array[t] += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); + sad_array[t] += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); if (sad_array[t] < bestsad) { @@ -1137,7 +1139,7 @@ int vp8_diamond_search_sadx4 { this_mv.row = this_row_offset << 3; this_mv.col = this_col_offset << 3; - thissad += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); + thissad += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); if (thissad < bestsad) { @@ -1168,12 +1170,12 @@ int vp8_diamond_search_sadx4 return INT_MAX; return fn_ptr->vf(what, what_stride, best_address, in_what_stride, (unsigned int *)(&thissad)) - + vp8_mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit); + + vp8_mv_err_cost(&this_mv, center_mv, mvcost, error_per_bit); } #if !(CONFIG_REALTIME_ONLY) -int vp8_full_search_sad(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int error_per_bit, int distance, vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2], int *mvsadcost[2]) +int vp8_full_search_sad(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int error_per_bit, int distance, vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2], int *mvsadcost[2], MV *center_mv) { unsigned char *what = (*(b->base_src) + b->src); int what_stride = b->src_stride; @@ -1211,7 +1213,7 @@ int vp8_full_search_sad(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int erro // Baseline value at the centre //bestsad = fn_ptr->sf( what,what_stride,bestaddress,in_what_stride) + (int)sqrt(vp8_mv_err_cost(ref_mv,ref_mv, mvcost,error_per_bit*14)); - bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, ref_mv, mvsadcost, error_per_bit); + bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, center_mv, mvsadcost, error_per_bit); } // Apply further limits to prevent us looking using vectors that stretch beyiond the UMV border @@ -1239,7 +1241,7 @@ int vp8_full_search_sad(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int erro this_mv.col = c << 3; //thissad += (int)sqrt(vp8_mv_err_cost(&this_mv,ref_mv, mvcost,error_per_bit*14)); //thissad += error_per_bit * mv_bits_sadcost[mv_bits(&this_mv, ref_mv, mvcost)]; - thissad += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); //mv_bits(error_per_bit, &this_mv, ref_mv, mvsadcost); + thissad += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); //mv_bits(error_per_bit, &this_mv, ref_mv, mvsadcost); if (thissad < bestsad) { @@ -1258,12 +1260,12 @@ int vp8_full_search_sad(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int erro if (bestsad < INT_MAX) return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, (unsigned int *)(&thissad)) - + vp8_mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit); + + vp8_mv_err_cost(&this_mv, center_mv, mvcost, error_per_bit); else return INT_MAX; } -int vp8_full_search_sadx3(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int error_per_bit, int distance, vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2], int *mvsadcost[2]) +int vp8_full_search_sadx3(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int error_per_bit, int distance, vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2], int *mvsadcost[2], MV *center_mv) { unsigned char *what = (*(b->base_src) + b->src); int what_stride = b->src_stride; @@ -1301,7 +1303,7 @@ int vp8_full_search_sadx3(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er (ref_row > x->mv_row_min) && (ref_row < x->mv_row_max)) { // Baseline value at the centre - bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, ref_mv, mvsadcost, error_per_bit); + bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, center_mv, mvsadcost, error_per_bit); } // Apply further limits to prevent us looking using vectors that stretch beyiond the UMV border @@ -1336,7 +1338,7 @@ int vp8_full_search_sadx3(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er if (thissad < bestsad) { this_mv.col = c << 3; - thissad += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); + thissad += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); if (thissad < bestsad) { @@ -1359,7 +1361,7 @@ int vp8_full_search_sadx3(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er if (thissad < bestsad) { this_mv.col = c << 3; - thissad += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); + thissad += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); if (thissad < bestsad) { @@ -1381,14 +1383,14 @@ int vp8_full_search_sadx3(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er if (bestsad < INT_MAX) return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, (unsigned int *)(&thissad)) - + vp8_mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit); + + vp8_mv_err_cost(&this_mv, center_mv, mvcost, error_per_bit); else return INT_MAX; } #endif -int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int error_per_bit, int distance, vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2], int *mvsadcost[2]) +int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int error_per_bit, int distance, vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2], int *mvsadcost[2], MV *center_mv) { unsigned char *what = (*(b->base_src) + b->src); int what_stride = b->src_stride; @@ -1427,7 +1429,7 @@ int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er (ref_row > x->mv_row_min) && (ref_row < x->mv_row_max)) { // Baseline value at the centre - bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, ref_mv, mvsadcost, error_per_bit); + bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride, 0x7fffffff) + vp8_mv_err_cost(ref_mv, center_mv, mvsadcost, error_per_bit); } // Apply further limits to prevent us looking using vectors that stretch beyiond the UMV border @@ -1462,7 +1464,7 @@ int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er if (thissad < bestsad) { this_mv.col = c << 3; - thissad += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); + thissad += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); if (thissad < bestsad) { @@ -1491,7 +1493,7 @@ int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er if (thissad < bestsad) { this_mv.col = c << 3; - thissad += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); + thissad += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); if (thissad < bestsad) { @@ -1514,7 +1516,7 @@ int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er if (thissad < bestsad) { this_mv.col = c << 3; - thissad += vp8_mv_err_cost(&this_mv, ref_mv, mvsadcost, error_per_bit); + thissad += vp8_mv_err_cost(&this_mv, center_mv, mvsadcost, error_per_bit); if (thissad < bestsad) { @@ -1535,7 +1537,7 @@ int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, MV *ref_mv, int er if (bestsad < INT_MAX) return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, (unsigned int *)(&thissad)) - + vp8_mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit); + + vp8_mv_err_cost(&this_mv, center_mv, mvcost, error_per_bit); else return INT_MAX; } diff --git a/vp8/encoder/mcomp.h b/vp8/encoder/mcomp.h index 7d60362..b54fe73 100644 --- a/vp8/encoder/mcomp.h +++ b/vp8/encoder/mcomp.h @@ -67,7 +67,8 @@ extern fractional_mv_step_fp vp8_skip_fractional_mv_step; int distance, \ vp8_variance_fn_ptr_t *fn_ptr, \ int *mvcost[2], \ - int *mvsadcost[2] \ + int *mvsadcost[2], \ + MV *center_mv \ ) #define prototype_diamond_search_sad(sym)\ @@ -83,7 +84,8 @@ extern fractional_mv_step_fp vp8_skip_fractional_mv_step; int *num00, \ vp8_variance_fn_ptr_t *fn_ptr, \ int *mvsadcost[2], \ - int *mvcost[2] \ + int *mvcost[2], \ + MV *center_mv \ ) #if ARCH_X86 || ARCH_X86_64 diff --git a/vp8/encoder/onyx_if.c b/vp8/encoder/onyx_if.c index 5f02a5a..fd7b566 100644 --- a/vp8/encoder/onyx_if.c +++ b/vp8/encoder/onyx_if.c @@ -283,6 +283,21 @@ static void setup_features(VP8_COMP *cpi) void vp8_dealloc_compressor_data(VP8_COMP *cpi) { + // Delete last frame MV storage buffers + if (cpi->lfmv != 0) + vpx_free(cpi->lfmv); + + cpi->lfmv = 0; + + if (cpi->lf_ref_frame_sign_bias != 0) + vpx_free(cpi->lf_ref_frame_sign_bias); + + cpi->lf_ref_frame_sign_bias = 0; + + if (cpi->lf_ref_frame != 0) + vpx_free(cpi->lf_ref_frame); + + cpi->lf_ref_frame = 0; // Delete sementation map if (cpi->segmentation_map != 0) @@ -2145,7 +2160,10 @@ VP8_PTR vp8_create_compressor(VP8_CONFIG *oxcf) cpi->alt_is_last = 0 ; cpi->gold_is_alt = 0 ; - + // allocate memory for storing last frame's MVs for MV prediction. + CHECK_MEM_ERROR(cpi->lfmv, vpx_calloc((cpi->common.mb_rows+1) * (cpi->common.mb_cols+1), sizeof(int_mv))); + CHECK_MEM_ERROR(cpi->lf_ref_frame_sign_bias, vpx_calloc((cpi->common.mb_rows+1) * (cpi->common.mb_cols+1), sizeof(int))); + CHECK_MEM_ERROR(cpi->lf_ref_frame, vpx_calloc((cpi->common.mb_rows+1) * (cpi->common.mb_cols+1), sizeof(int))); // Create the encoder segmentation map and set all entries to 0 CHECK_MEM_ERROR(cpi->segmentation_map, vpx_calloc(cpi->common.mb_rows * cpi->common.mb_cols, 1)); @@ -4165,6 +4183,60 @@ static void encode_frame_to_data_rate } #endif + + + +//////////////////////////////// +//////////////////////////////// + // This frame's MVs are saved and will be used in next frame's MV prediction. + if(cm->show_frame) //do not save for altref frame + { + int mb_row; + int mb_col; + MODE_INFO *tmp = cm->mip; //point to beginning of allocated MODE_INFO arrays. + //static int last_video_frame = 0; + + /* + if (cm->current_video_frame == 0) //first frame: set to 0 + { + for (mb_row = 0; mb_row < cm->mb_rows+1; mb_row ++) + { + for (mb_col = 0; mb_col < cm->mb_cols+1; mb_col ++) + { + cpi->lfmv[mb_col + mb_row*(cm->mode_info_stride)].as_int = 0; + cpi->lf_ref_frame_sign_bias[mb_col + mb_row*(cm->mode_info_stride)] = 0; + cpi->lf_ref_frame[mb_col + mb_row*(cm->mode_info_stride)] = 0; + } + } + }else + */ + + if(cm->frame_type != KEY_FRAME) + { + for (mb_row = 0; mb_row < cm->mb_rows+1; mb_row ++) + { + for (mb_col = 0; mb_col < cm->mb_cols+1; mb_col ++) + { + if(tmp->mbmi.ref_frame != INTRA_FRAME) + cpi->lfmv[mb_col + mb_row*(cm->mode_info_stride)].as_int = tmp->mbmi.mv.as_int; + + cpi->lf_ref_frame_sign_bias[mb_col + mb_row*(cm->mode_info_stride)] = cm->ref_frame_sign_bias[tmp->mbmi.ref_frame]; + cpi->lf_ref_frame[mb_col + mb_row*(cm->mode_info_stride)] = tmp->mbmi.ref_frame; + //printf("[%d, %d] ", cpi->lfmv[mb_col + mb_row*(cm->mode_info_stride-1)].as_mv.row, cpi->lfmv[mb_col + mb_row*(cm->mode_info_stride-1)].as_mv.col); + tmp++; + } + } + + //last_video_frame = cm->current_video_frame; + } + } + +//printf("after: %d %d \n", cm->current_video_frame, cm->show_frame ); + + + + + // Update the GF useage maps. // This is done after completing the compression of a frame when all modes etc. are finalized but before loop filter vp8_update_gf_useage_maps(cpi, cm, &cpi->mb); diff --git a/vp8/encoder/onyx_int.h b/vp8/encoder/onyx_int.h index 81e32f0..31e627b 100644 --- a/vp8/encoder/onyx_int.h +++ b/vp8/encoder/onyx_int.h @@ -239,6 +239,12 @@ enum BLOCK_MAX_SEGMENTS }; +typedef union +{ + unsigned int as_int; + MV as_mv; +} int_mv; /* facilitates rapid equality tests */ + typedef struct { @@ -661,6 +667,10 @@ typedef struct unsigned char *gf_active_flags; // Record of which MBs still refer to last golden frame either directly or through 0,0 int gf_active_count; + //Store last frame's MV info for next frame MV prediction + int_mv *lfmv; + int *lf_ref_frame_sign_bias; + int *lf_ref_frame; } VP8_COMP; diff --git a/vp8/encoder/pickinter.c b/vp8/encoder/pickinter.c index 2f7dd9c..8dfca35 100644 --- a/vp8/encoder/pickinter.c +++ b/vp8/encoder/pickinter.c @@ -685,7 +685,7 @@ int vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int rec #if 0 // Initial step Search - bestsme = vp8_diamond_search_sad(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param, x->errorperbit, &num00, &cpi->fn_ptr, cpi->mb.mvsadcost, cpi->mb.mvcost); + bestsme = vp8_diamond_search_sad(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param, x->errorperbit, &num00, &cpi->fn_ptr, cpi->mb.mvsadcost, cpi->mb.mvcost, &best_ref_mv1); mode_mv[NEWMV].row = d->bmi.mv.as_mv.row; mode_mv[NEWMV].col = d->bmi.mv.as_mv.col; @@ -698,7 +698,7 @@ int vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int rec num00--; else { - thissme = vp8_diamond_search_sad(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param + n, x->errorperbit, &num00, &cpi->fn_ptr, cpi->mb.mvsadcost, x->mvcost); + thissme = vp8_diamond_search_sad(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param + n, x->errorperbit, &num00, &cpi->fn_ptr, cpi->mb.mvsadcost, x->mvcost, &best_ref_mv1); if (thissme < bestsme) { @@ -724,7 +724,7 @@ int vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int rec } else { - bestsme = cpi->diamond_search_sad(x, b, d, &best_ref_mv1, &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, &best_ref_mv1, &d->bmi.mv.as_mv, step_param, sadpb / 2/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], x->mvsadcost, x->mvcost, &best_ref_mv1); //sadpb < 9 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row; mode_mv[NEWMV].col = d->bmi.mv.as_mv.col; @@ -743,7 +743,7 @@ int vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int rec num00--; else { - thissme = cpi->diamond_search_sad(x, b, d, &best_ref_mv1, &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, &best_ref_mv1, &d->bmi.mv.as_mv, step_param + n, sadpb / 4/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], x->mvsadcost, x->mvcost, &best_ref_mv1); //sadpb = 9 if (thissme < bestsme) { diff --git a/vp8/encoder/rdopt.c b/vp8/encoder/rdopt.c index 8a753fd..99129ac 100644 --- a/vp8/encoder/rdopt.c +++ b/vp8/encoder/rdopt.c @@ -1236,7 +1236,7 @@ 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; @@ -1249,7 +1249,7 @@ 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) { @@ -1264,7 +1264,7 @@ 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) { @@ -1385,6 +1385,273 @@ 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; iblock[0]; @@ -1422,6 +1689,12 @@ 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 @@ -1589,6 +1862,72 @@ 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]; @@ -1764,6 +2103,10 @@ 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; @@ -1784,7 +2127,7 @@ 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; @@ -1803,7 +2146,7 @@ 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) { @@ -1827,9 +2170,14 @@ 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; @@ -1838,9 +2186,20 @@ 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 diff --git a/vp8/encoder/temporal_filter.c b/vp8/encoder/temporal_filter.c index fd5dd7e..745dc31 100644 --- a/vp8/encoder/temporal_filter.c +++ b/vp8/encoder/temporal_filter.c @@ -246,7 +246,7 @@ static int find_matching_mb step_param, sadpb / 2/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], - mvsadcost, mvcost); //sadpb < 9 + mvsadcost, mvcost, &best_ref_mv1); //sadpb < 9 // Further step/diamond searches as necessary n = 0; @@ -268,7 +268,7 @@ static int find_matching_mb step_param + n, sadpb / 4/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], - mvsadcost, mvcost); //sadpb = 9 + mvsadcost, mvcost, &best_ref_mv1); //sadpb = 9 if (thissme < bestsme) {