| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <limits.h> |
| #include <vp8/encoder/encodeintra.h> |
| #include <vp8/encoder/rdopt.h> |
| #include <vp8/common/setupintrarecon.h> |
| #include <vp8/common/blockd.h> |
| #include <vp8/common/reconinter.h> |
| #include <vp8/common/systemdependent.h> |
| #include <vpx_mem/vpx_mem.h> |
| #include <vp8/encoder/segmentation.h> |
| |
| static unsigned int do_16x16_motion_iteration |
| ( |
| VP8_COMP *cpi, |
| int_mv *ref_mv, |
| int_mv *dst_mv |
| ) |
| { |
| MACROBLOCK * const x = &cpi->mb; |
| MACROBLOCKD * const xd = &x->e_mbd; |
| BLOCK *b = &x->block[0]; |
| BLOCKD *d = &xd->block[0]; |
| vp8_variance_fn_ptr_t v_fn_ptr = cpi->fn_ptr[BLOCK_16X16]; |
| unsigned int best_err; |
| int step_param, further_steps; |
| static int dummy_cost[2*mv_max+1]; |
| int *mvcost[2] = { &dummy_cost[mv_max+1], &dummy_cost[mv_max+1] }; |
| int *mvsadcost[2] = { &dummy_cost[mv_max+1], &dummy_cost[mv_max+1] }; |
| #if CONFIG_HIGH_PRECISION_MV |
| static int dummy_cost_hp[2*mv_max_hp+1]; |
| int *mvcost_hp[2] = { &dummy_cost_hp[mv_max_hp+1], &dummy_cost_hp[mv_max_hp+1] }; |
| int *mvsadcost_hp[2] = { &dummy_cost_hp[mv_max_hp+1], &dummy_cost_hp[mv_max_hp+1] }; |
| #endif |
| int col_min = (ref_mv->as_mv.col>>3) - MAX_FULL_PEL_VAL + ((ref_mv->as_mv.col & 7)?1:0); |
| int row_min = (ref_mv->as_mv.row>>3) - MAX_FULL_PEL_VAL + ((ref_mv->as_mv.row & 7)?1:0); |
| int col_max = (ref_mv->as_mv.col>>3) + MAX_FULL_PEL_VAL; |
| int row_max = (ref_mv->as_mv.row>>3) + MAX_FULL_PEL_VAL; |
| int tmp_col_min = x->mv_col_min; |
| int tmp_col_max = x->mv_col_max; |
| int tmp_row_min = x->mv_row_min; |
| int tmp_row_max = x->mv_row_max; |
| int_mv ref_full; |
| |
| // Further step/diamond searches as necessary |
| if (cpi->Speed < 8) |
| { |
| step_param = cpi->sf.first_step + ((cpi->Speed > 5) ? 1 : 0); |
| further_steps = (cpi->sf.max_step_search_steps - 1) - step_param; |
| } |
| else |
| { |
| step_param = cpi->sf.first_step + 2; |
| further_steps = 0; |
| } |
| |
| /* Get intersection of UMV window and valid MV window to reduce # of checks in diamond search. */ |
| if (x->mv_col_min < col_min ) |
| x->mv_col_min = col_min; |
| if (x->mv_col_max > col_max ) |
| x->mv_col_max = col_max; |
| if (x->mv_row_min < row_min ) |
| x->mv_row_min = row_min; |
| if (x->mv_row_max > row_max ) |
| x->mv_row_max = row_max; |
| |
| ref_full.as_mv.col = ref_mv->as_mv.col >> 3; |
| ref_full.as_mv.row = ref_mv->as_mv.row >> 3; |
| |
| /*cpi->sf.search_method == HEX*/ |
| best_err = vp8_hex_search(x, b, d, |
| &ref_full, dst_mv, |
| step_param, |
| x->errorperbit, |
| &v_fn_ptr, |
| #if CONFIG_HIGH_PRECISION_MV |
| xd->allow_high_precision_mv?mvsadcost_hp:mvsadcost, xd->allow_high_precision_mv?mvcost_hp:mvcost, |
| #else |
| mvsadcost, mvcost, |
| #endif |
| ref_mv); |
| |
| // Try sub-pixel MC |
| //if (bestsme > error_thresh && bestsme < INT_MAX) |
| { |
| int distortion; |
| unsigned int sse; |
| best_err = cpi->find_fractional_mv_step(x, b, d, |
| dst_mv, ref_mv, |
| x->errorperbit, &v_fn_ptr, |
| #if CONFIG_HIGH_PRECISION_MV |
| xd->allow_high_precision_mv?mvcost_hp:mvcost, |
| #else |
| mvcost, |
| #endif |
| &distortion, &sse); |
| } |
| |
| vp8_set_mbmode_and_mvs(x, NEWMV, dst_mv); |
| vp8_build_inter16x16_predictors_mby(xd); |
| //VARIANCE_INVOKE(&cpi->rtcd.variance, satd16x16) |
| best_err = VARIANCE_INVOKE(&cpi->rtcd.variance, sad16x16) |
| (xd->dst.y_buffer, xd->dst.y_stride, |
| xd->predictor, 16, best_err); |
| |
| /* restore UMV window */ |
| x->mv_col_min = tmp_col_min; |
| x->mv_col_max = tmp_col_max; |
| x->mv_row_min = tmp_row_min; |
| x->mv_row_max = tmp_row_max; |
| |
| return best_err; |
| } |
| |
| static int do_16x16_motion_search |
| ( |
| VP8_COMP *cpi, |
| int_mv *ref_mv, |
| int_mv *dst_mv, |
| YV12_BUFFER_CONFIG *buf, |
| int buf_mb_y_offset, |
| YV12_BUFFER_CONFIG *ref, |
| int mb_y_offset |
| ) |
| { |
| MACROBLOCK * const x = &cpi->mb; |
| MACROBLOCKD * const xd = &x->e_mbd; |
| unsigned int err, tmp_err; |
| int_mv tmp_mv; |
| int n; |
| |
| for (n = 0; n < 16; n++) { |
| BLOCKD *d = &xd->block[n]; |
| BLOCK *b = &x->block[n]; |
| |
| b->base_src = &buf->y_buffer; |
| b->src_stride = buf->y_stride; |
| b->src = buf->y_stride * (n & 12) + (n & 3) * 4 + buf_mb_y_offset; |
| |
| d->base_pre = &ref->y_buffer; |
| d->pre_stride = ref->y_stride; |
| d->pre = ref->y_stride * (n & 12) + (n & 3) * 4 + mb_y_offset; |
| } |
| |
| // Try zero MV first |
| // FIXME should really use something like near/nearest MV and/or MV prediction |
| xd->pre.y_buffer = ref->y_buffer + mb_y_offset; |
| xd->pre.y_stride = ref->y_stride; |
| //VARIANCE_INVOKE(&cpi->rtcd.variance, satd16x16) |
| err = VARIANCE_INVOKE(&cpi->rtcd.variance, sad16x16) |
| (ref->y_buffer + mb_y_offset, |
| ref->y_stride, xd->dst.y_buffer, |
| xd->dst.y_stride, INT_MAX); |
| dst_mv->as_int = 0; |
| |
| // Test last reference frame using the previous best mv as the |
| // starting point (best reference) for the search |
| tmp_err = do_16x16_motion_iteration(cpi, ref_mv, &tmp_mv); |
| if (tmp_err < err) |
| { |
| err = tmp_err; |
| dst_mv->as_int = tmp_mv.as_int; |
| } |
| |
| // If the current best reference mv is not centred on 0,0 then do a 0,0 based search as well |
| if (ref_mv->as_int) |
| { |
| int tmp_err; |
| int_mv zero_ref_mv, tmp_mv; |
| |
| zero_ref_mv.as_int = 0; |
| tmp_err = do_16x16_motion_iteration(cpi, &zero_ref_mv, &tmp_mv); |
| if (tmp_err < err) |
| { |
| dst_mv->as_int = tmp_mv.as_int; |
| err = tmp_err; |
| } |
| } |
| |
| return err; |
| } |
| |
| static int do_16x16_zerozero_search |
| ( |
| VP8_COMP *cpi, |
| int_mv *dst_mv, |
| YV12_BUFFER_CONFIG *buf, |
| int buf_mb_y_offset, |
| YV12_BUFFER_CONFIG *ref, |
| int mb_y_offset |
| ) |
| { |
| MACROBLOCK * const x = &cpi->mb; |
| MACROBLOCKD * const xd = &x->e_mbd; |
| unsigned int err; |
| int n; |
| |
| for (n = 0; n < 16; n++) { |
| BLOCKD *d = &xd->block[n]; |
| BLOCK *b = &x->block[n]; |
| |
| b->base_src = &buf->y_buffer; |
| b->src_stride = buf->y_stride; |
| b->src = buf->y_stride * (n & 12) + (n & 3) * 4 + buf_mb_y_offset; |
| |
| d->base_pre = &ref->y_buffer; |
| d->pre_stride = ref->y_stride; |
| d->pre = ref->y_stride * (n & 12) + (n & 3) * 4 + mb_y_offset; |
| } |
| |
| // Try zero MV first |
| // FIXME should really use something like near/nearest MV and/or MV prediction |
| xd->pre.y_buffer = ref->y_buffer + mb_y_offset; |
| xd->pre.y_stride = ref->y_stride; |
| //VARIANCE_INVOKE(&cpi->rtcd.variance, satd16x16) |
| err = VARIANCE_INVOKE(&cpi->rtcd.variance, sad16x16) |
| (ref->y_buffer + mb_y_offset, |
| ref->y_stride, xd->dst.y_buffer, |
| xd->dst.y_stride, INT_MAX); |
| |
| dst_mv->as_int = 0; |
| |
| return err; |
| } |
| static int find_best_16x16_intra |
| ( |
| VP8_COMP *cpi, |
| YV12_BUFFER_CONFIG *buf, |
| int mb_y_offset, |
| MB_PREDICTION_MODE *pbest_mode |
| ) |
| { |
| MACROBLOCK * const x = &cpi->mb; |
| MACROBLOCKD * const xd = &x->e_mbd; |
| MB_PREDICTION_MODE best_mode = -1, mode; |
| int best_err = INT_MAX; |
| |
| // calculate SATD for each intra prediction mode; |
| // we're intentionally not doing 4x4, we just want a rough estimate |
| for (mode = DC_PRED; mode <= TM_PRED; mode++) |
| { |
| unsigned int err; |
| |
| xd->mode_info_context->mbmi.mode = mode; |
| RECON_INVOKE(&cpi->rtcd.common->recon, build_intra_predictors_mby)(xd); |
| //VARIANCE_INVOKE(&cpi->rtcd.variance, satd16x16) |
| err = VARIANCE_INVOKE(&cpi->rtcd.variance, sad16x16) |
| (xd->predictor, 16, |
| buf->y_buffer + mb_y_offset, |
| buf->y_stride, err); |
| // find best |
| if (err < best_err) |
| { |
| best_err = err; |
| best_mode = mode; |
| } |
| } |
| |
| if (pbest_mode) |
| *pbest_mode = best_mode; |
| |
| return best_err; |
| } |
| |
| static void update_mbgraph_mb_stats |
| ( |
| VP8_COMP *cpi, |
| MBGRAPH_MB_STATS *stats, |
| YV12_BUFFER_CONFIG *buf, |
| int mb_y_offset, |
| YV12_BUFFER_CONFIG *golden_ref, |
| int_mv *prev_golden_ref_mv, |
| int gld_y_offset, |
| YV12_BUFFER_CONFIG *alt_ref, |
| int_mv *prev_alt_ref_mv, |
| int arf_y_offset |
| ) |
| { |
| MACROBLOCK * const x = &cpi->mb; |
| MACROBLOCKD * const xd = &x->e_mbd; |
| int intra_error; |
| |
| // FIXME in practice we're completely ignoring chroma here |
| xd->dst.y_buffer = buf->y_buffer + mb_y_offset; |
| |
| // do intra 16x16 prediction |
| intra_error = find_best_16x16_intra(cpi, buf, mb_y_offset, &stats->ref[INTRA_FRAME].m.mode); |
| if (intra_error <= 0) |
| intra_error = 1; |
| stats->ref[INTRA_FRAME].err = intra_error; |
| |
| // Golden frame MV search, if it exists and is different than last frame |
| if (golden_ref) |
| { |
| int g_motion_error = do_16x16_motion_search(cpi, prev_golden_ref_mv, |
| &stats->ref[GOLDEN_FRAME].m.mv, |
| buf, mb_y_offset, |
| golden_ref, gld_y_offset); |
| stats->ref[GOLDEN_FRAME].err = g_motion_error; |
| } |
| else |
| { |
| stats->ref[GOLDEN_FRAME].err = INT_MAX; |
| stats->ref[GOLDEN_FRAME].m.mv.as_int = 0; |
| } |
| |
| // Alt-ref frame MV search, if it exists and is different than last/golden frame |
| if (alt_ref) |
| { |
| //int a_motion_error = do_16x16_motion_search(cpi, prev_alt_ref_mv, |
| // &stats->ref[ALTREF_FRAME].m.mv, |
| // buf, mb_y_offset, |
| // alt_ref, arf_y_offset); |
| |
| int a_motion_error = |
| do_16x16_zerozero_search( cpi, |
| &stats->ref[ALTREF_FRAME].m.mv, |
| buf, mb_y_offset, |
| alt_ref, arf_y_offset); |
| |
| stats->ref[ALTREF_FRAME].err = a_motion_error; |
| } |
| else |
| { |
| stats->ref[ALTREF_FRAME].err = INT_MAX; |
| stats->ref[ALTREF_FRAME].m.mv.as_int = 0; |
| } |
| } |
| |
| static void update_mbgraph_frame_stats |
| ( |
| VP8_COMP *cpi, |
| MBGRAPH_FRAME_STATS *stats, |
| YV12_BUFFER_CONFIG *buf, |
| YV12_BUFFER_CONFIG *golden_ref, |
| YV12_BUFFER_CONFIG *alt_ref |
| ) |
| { |
| MACROBLOCK * const x = &cpi->mb; |
| VP8_COMMON * const cm = &cpi->common; |
| MACROBLOCKD * const xd = &x->e_mbd; |
| int mb_col, mb_row, offset = 0; |
| int mb_y_offset = 0, arf_y_offset = 0, gld_y_offset = 0; |
| int_mv arf_top_mv, gld_top_mv; |
| MODE_INFO mi_local; |
| |
| // Set up limit values for motion vectors to prevent them extending outside the UMV borders |
| arf_top_mv.as_int = 0; |
| gld_top_mv.as_int = 0; |
| x->mv_row_min = -(VP8BORDERINPIXELS - 16 - INTERP_EXTEND); |
| x->mv_row_max = (cm->mb_rows - 1) * 16 + VP8BORDERINPIXELS - 16 - INTERP_EXTEND; |
| xd->up_available = 0; |
| xd->dst.y_stride = buf->y_stride; |
| xd->pre.y_stride = buf->y_stride; |
| xd->dst.uv_stride = buf->uv_stride; |
| xd->mode_info_context = &mi_local; |
| |
| for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) |
| { |
| int_mv arf_left_mv, gld_left_mv; |
| int mb_y_in_offset = mb_y_offset; |
| int arf_y_in_offset = arf_y_offset; |
| int gld_y_in_offset = gld_y_offset; |
| |
| // Set up limit values for motion vectors to prevent them extending outside the UMV borders |
| arf_left_mv.as_int = arf_top_mv.as_int; |
| gld_left_mv.as_int = gld_top_mv.as_int; |
| x->mv_col_min = -(VP8BORDERINPIXELS - 16 - INTERP_EXTEND); |
| x->mv_col_max = (cm->mb_cols - 1) * 16 + VP8BORDERINPIXELS - 16 - INTERP_EXTEND; |
| xd->left_available = 0; |
| |
| for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) |
| { |
| MBGRAPH_MB_STATS *mb_stats = &stats->mb_stats[offset + mb_col]; |
| |
| update_mbgraph_mb_stats(cpi, mb_stats, buf, mb_y_in_offset, |
| golden_ref, &gld_left_mv, gld_y_in_offset, |
| alt_ref, &arf_left_mv, arf_y_in_offset); |
| arf_left_mv.as_int = mb_stats->ref[ALTREF_FRAME].m.mv.as_int; |
| gld_left_mv.as_int = mb_stats->ref[GOLDEN_FRAME].m.mv.as_int; |
| if (mb_col == 0) |
| { |
| arf_top_mv.as_int = arf_left_mv.as_int; |
| gld_top_mv.as_int = gld_left_mv.as_int; |
| } |
| xd->left_available = 1; |
| mb_y_in_offset += 16; |
| gld_y_in_offset += 16; |
| arf_y_in_offset += 16; |
| x->mv_col_min -= 16; |
| x->mv_col_max -= 16; |
| } |
| xd->up_available = 1; |
| mb_y_offset += buf->y_stride * 16; |
| gld_y_offset += golden_ref->y_stride * 16; |
| if (alt_ref) |
| arf_y_offset += alt_ref->y_stride * 16; |
| x->mv_row_min -= 16; |
| x->mv_row_max -= 16; |
| offset += cm->mb_cols; |
| } |
| } |
| |
| // Test for small magnitude (<= 1 pel mvs) |
| int small_mv( MV mv ) |
| { |
| if ( (abs( (int)mv.col ) > 2) || (abs( (int)mv.row ) > 2) ) |
| return FALSE; |
| else |
| return TRUE; |
| } |
| |
| //void separate_arf_mbs_byzz |
| void separate_arf_mbs |
| ( |
| VP8_COMP *cpi |
| ) |
| { |
| VP8_COMMON * const cm = &cpi->common; |
| int mb_col, mb_row, offset, i; |
| int ncnt[4]; |
| int n_frames = cpi->mbgraph_n_frames; |
| |
| int * arf_not_zz; |
| |
| CHECK_MEM_ERROR(arf_not_zz, |
| vpx_calloc(cm->mb_rows * cm->mb_cols * sizeof(*arf_not_zz), 1)); |
| |
| vpx_memset(arf_not_zz, 0, sizeof(arf_not_zz)); |
| |
| // We are not interested in results beyond the alt ref itself. |
| if ( n_frames > cpi->frames_till_gf_update_due ) |
| n_frames = cpi->frames_till_gf_update_due; |
| |
| // defer cost to reference frames |
| for (i = n_frames - 1; i >= 0; i--) |
| { |
| MBGRAPH_FRAME_STATS *frame_stats = &cpi->mbgraph_stats[i]; |
| |
| for (offset = 0, mb_row = 0; mb_row < cm->mb_rows; |
| offset += cm->mb_cols, mb_row++) |
| { |
| for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) |
| { |
| MBGRAPH_MB_STATS *mb_stats = |
| &frame_stats->mb_stats[offset + mb_col]; |
| |
| int altref_err = mb_stats->ref[ALTREF_FRAME].err; |
| |
| int intra_err = |
| mb_stats->ref[INTRA_FRAME ].err + 250; |
| |
| int golden_err = |
| mb_stats->ref[GOLDEN_FRAME].err + 250; |
| |
| // Test for altref vs intra and gf and that its mv was 0,0. |
| if ( (altref_err > 1000) || |
| (altref_err > intra_err) || |
| (altref_err > golden_err) ) |
| { |
| arf_not_zz[offset + mb_col]++; |
| } |
| } |
| } |
| } |
| |
| vpx_memset(ncnt, 0, sizeof(ncnt)); |
| for (offset = 0, mb_row = 0; mb_row < cm->mb_rows; |
| offset += cm->mb_cols, mb_row++) |
| { |
| for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) |
| { |
| // If any of the blocks in the sequence failed then the MB |
| // goes in segment 0 |
| if ( arf_not_zz[offset + mb_col] ) |
| { |
| ncnt[0]++; |
| cpi->segmentation_map[offset + mb_col] = 0; |
| } |
| else |
| { |
| ncnt[1]++; |
| cpi->segmentation_map[offset + mb_col] = 1; |
| } |
| } |
| } |
| |
| // Only bother with segmentation if over 10% of the MBs in static segment |
| //if ( ncnt[1] && (ncnt[0] / ncnt[1] < 10) ) |
| if ( 1 ) |
| { |
| // Note % of blocks that are marked as static |
| if ( cm->MBs ) |
| cpi->static_mb_pct = (ncnt[1] * 100) / cm->MBs; |
| |
| // This error case should not be reachable as this function should |
| // never be called with the common data structure unititialized. |
| else |
| cpi->static_mb_pct = 0; |
| |
| vp8_enable_segmentation((VP8_PTR) cpi); |
| } |
| else |
| { |
| cpi->static_mb_pct = 0; |
| vp8_disable_segmentation((VP8_PTR) cpi); |
| } |
| |
| // Free localy allocated storage |
| vpx_free(arf_not_zz); |
| } |
| |
| void vp8_update_mbgraph_stats |
| ( |
| VP8_COMP *cpi |
| ) |
| { |
| VP8_COMMON * const cm = &cpi->common; |
| int i, n_frames = vp8_lookahead_depth(cpi->lookahead); |
| YV12_BUFFER_CONFIG *golden_ref = &cm->yv12_fb[cm->gld_fb_idx]; |
| |
| // we need to look ahead beyond where the ARF transitions into |
| // being a GF - so exit if we don't look ahead beyond that |
| if (n_frames <= cpi->frames_till_gf_update_due) |
| return; |
| if (n_frames > MAX_LAG_BUFFERS) |
| n_frames = MAX_LAG_BUFFERS; |
| |
| cpi->mbgraph_n_frames = n_frames; |
| for (i = 0; i < n_frames; i++) |
| { |
| MBGRAPH_FRAME_STATS *frame_stats = &cpi->mbgraph_stats[i]; |
| vpx_memset(frame_stats->mb_stats, 0, |
| cm->mb_rows * cm->mb_cols * sizeof(*cpi->mbgraph_stats[i].mb_stats)); |
| } |
| |
| // do motion search to find contribution of each reference to data |
| // later on in this GF group |
| // FIXME really, the GF/last MC search should be done forward, and |
| // the ARF MC search backwards, to get optimal results for MV caching |
| for (i = 0; i < n_frames; i++) |
| { |
| MBGRAPH_FRAME_STATS *frame_stats = &cpi->mbgraph_stats[i]; |
| struct lookahead_entry *q_cur = |
| vp8_lookahead_peek(cpi->lookahead, i); |
| |
| assert(q_cur != NULL); |
| |
| update_mbgraph_frame_stats(cpi, frame_stats, &q_cur->img, |
| golden_ref, cpi->Source); |
| } |
| |
| vp8_clear_system_state(); //__asm emms; |
| |
| separate_arf_mbs(cpi); |
| } |
