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Diffstat (limited to 'vp10/encoder/mbgraph.c')
-rw-r--r-- | vp10/encoder/mbgraph.c | 417 |
1 files changed, 0 insertions, 417 deletions
diff --git a/vp10/encoder/mbgraph.c b/vp10/encoder/mbgraph.c deleted file mode 100644 index ed0f53909..000000000 --- a/vp10/encoder/mbgraph.c +++ /dev/null @@ -1,417 +0,0 @@ -/* - * 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 "./vp10_rtcd.h" -#include "./vpx_dsp_rtcd.h" - -#include "vpx_dsp/vpx_dsp_common.h" -#include "vpx_mem/vpx_mem.h" -#include "vpx_ports/system_state.h" -#include "vp10/encoder/segmentation.h" -#include "vp10/encoder/mcomp.h" -#include "vp10/common/blockd.h" -#include "vp10/common/reconinter.h" -#include "vp10/common/reconintra.h" - - -static unsigned int do_16x16_motion_iteration(VP10_COMP *cpi, - const MV *ref_mv, - MV *dst_mv, - int mb_row, - int mb_col) { - MACROBLOCK *const x = &cpi->td.mb; - MACROBLOCKD *const xd = &x->e_mbd; - const MV_SPEED_FEATURES *const mv_sf = &cpi->sf.mv; - const vp9_variance_fn_ptr_t v_fn_ptr = cpi->fn_ptr[BLOCK_16X16]; - - const int tmp_col_min = x->mv_col_min; - const int tmp_col_max = x->mv_col_max; - const int tmp_row_min = x->mv_row_min; - const int tmp_row_max = x->mv_row_max; - MV ref_full; - int cost_list[5]; - - // Further step/diamond searches as necessary - int step_param = mv_sf->reduce_first_step_size; - step_param = VPXMIN(step_param, MAX_MVSEARCH_STEPS - 2); - - vp10_set_mv_search_range(x, ref_mv); - - ref_full.col = ref_mv->col >> 3; - ref_full.row = ref_mv->row >> 3; - - /*cpi->sf.search_method == HEX*/ - vp10_hex_search(x, &ref_full, step_param, x->errorperbit, 0, - cond_cost_list(cpi, cost_list), - &v_fn_ptr, 0, ref_mv, dst_mv); - - // Try sub-pixel MC - // if (bestsme > error_thresh && bestsme < INT_MAX) - { - int distortion; - unsigned int sse; - cpi->find_fractional_mv_step( - x, dst_mv, ref_mv, cpi->common.allow_high_precision_mv, x->errorperbit, - &v_fn_ptr, 0, mv_sf->subpel_iters_per_step, - cond_cost_list(cpi, cost_list), - NULL, NULL, - &distortion, &sse, NULL, 0, 0); - } - - xd->mi[0]->mbmi.mode = NEWMV; - xd->mi[0]->mbmi.mv[0].as_mv = *dst_mv; - - vp10_build_inter_predictors_sby(xd, mb_row, mb_col, BLOCK_16X16); - - /* 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 vpx_sad16x16(x->plane[0].src.buf, x->plane[0].src.stride, - xd->plane[0].dst.buf, xd->plane[0].dst.stride); -} - -static int do_16x16_motion_search(VP10_COMP *cpi, const MV *ref_mv, - int_mv *dst_mv, int mb_row, int mb_col) { - MACROBLOCK *const x = &cpi->td.mb; - MACROBLOCKD *const xd = &x->e_mbd; - unsigned int err, tmp_err; - MV tmp_mv; - - // Try zero MV first - // FIXME should really use something like near/nearest MV and/or MV prediction - err = vpx_sad16x16(x->plane[0].src.buf, x->plane[0].src.stride, - xd->plane[0].pre[0].buf, xd->plane[0].pre[0].stride); - 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, mb_row, mb_col); - if (tmp_err < err) { - err = tmp_err; - dst_mv->as_mv = tmp_mv; - } - - // If the current best reference mv is not centered on 0,0 then do a 0,0 - // based search as well. - if (ref_mv->row != 0 || ref_mv->col != 0) { - unsigned int tmp_err; - MV zero_ref_mv = {0, 0}, tmp_mv; - - tmp_err = do_16x16_motion_iteration(cpi, &zero_ref_mv, &tmp_mv, - mb_row, mb_col); - if (tmp_err < err) { - dst_mv->as_mv = tmp_mv; - err = tmp_err; - } - } - - return err; -} - -static int do_16x16_zerozero_search(VP10_COMP *cpi, int_mv *dst_mv) { - MACROBLOCK *const x = &cpi->td.mb; - MACROBLOCKD *const xd = &x->e_mbd; - unsigned int err; - - // Try zero MV first - // FIXME should really use something like near/nearest MV and/or MV prediction - err = vpx_sad16x16(x->plane[0].src.buf, x->plane[0].src.stride, - xd->plane[0].pre[0].buf, xd->plane[0].pre[0].stride); - - dst_mv->as_int = 0; - - return err; -} -static int find_best_16x16_intra(VP10_COMP *cpi, PREDICTION_MODE *pbest_mode) { - MACROBLOCK *const x = &cpi->td.mb; - MACROBLOCKD *const xd = &x->e_mbd; - PREDICTION_MODE best_mode = -1, mode; - unsigned 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->mi[0]->mbmi.mode = mode; - vp10_predict_intra_block(xd, 2, 2, TX_16X16, mode, - x->plane[0].src.buf, x->plane[0].src.stride, - xd->plane[0].dst.buf, xd->plane[0].dst.stride, - 0, 0, 0); - err = vpx_sad16x16(x->plane[0].src.buf, x->plane[0].src.stride, - xd->plane[0].dst.buf, xd->plane[0].dst.stride); - - // 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 -( - VP10_COMP *cpi, - MBGRAPH_MB_STATS *stats, - YV12_BUFFER_CONFIG *buf, - int mb_y_offset, - YV12_BUFFER_CONFIG *golden_ref, - const MV *prev_golden_ref_mv, - YV12_BUFFER_CONFIG *alt_ref, - int mb_row, - int mb_col -) { - MACROBLOCK *const x = &cpi->td.mb; - MACROBLOCKD *const xd = &x->e_mbd; - int intra_error; - VP10_COMMON *cm = &cpi->common; - - // FIXME in practice we're completely ignoring chroma here - x->plane[0].src.buf = buf->y_buffer + mb_y_offset; - x->plane[0].src.stride = buf->y_stride; - - xd->plane[0].dst.buf = get_frame_new_buffer(cm)->y_buffer + mb_y_offset; - xd->plane[0].dst.stride = get_frame_new_buffer(cm)->y_stride; - - // do intra 16x16 prediction - intra_error = find_best_16x16_intra(cpi, - &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; - xd->plane[0].pre[0].buf = golden_ref->y_buffer + mb_y_offset; - xd->plane[0].pre[0].stride = golden_ref->y_stride; - g_motion_error = do_16x16_motion_search(cpi, - prev_golden_ref_mv, - &stats->ref[GOLDEN_FRAME].m.mv, - mb_row, mb_col); - 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; - } - - // Do an Alt-ref frame MV search, if it exists and is different than - // last/golden frame. - if (alt_ref) { - int a_motion_error; - xd->plane[0].pre[0].buf = alt_ref->y_buffer + mb_y_offset; - xd->plane[0].pre[0].stride = alt_ref->y_stride; - a_motion_error = do_16x16_zerozero_search(cpi, - &stats->ref[ALTREF_FRAME].m.mv); - - 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(VP10_COMP *cpi, - MBGRAPH_FRAME_STATS *stats, - YV12_BUFFER_CONFIG *buf, - YV12_BUFFER_CONFIG *golden_ref, - YV12_BUFFER_CONFIG *alt_ref) { - MACROBLOCK *const x = &cpi->td.mb; - MACROBLOCKD *const xd = &x->e_mbd; - VP10_COMMON *const cm = &cpi->common; - - int mb_col, mb_row, offset = 0; - int mb_y_offset = 0, arf_y_offset = 0, gld_y_offset = 0; - MV gld_top_mv = {0, 0}; - MODE_INFO mi_local; - - vp10_zero(mi_local); - // Set up limit values for motion vectors to prevent them extending outside - // the UMV borders. - x->mv_row_min = -BORDER_MV_PIXELS_B16; - x->mv_row_max = (cm->mb_rows - 1) * 8 + BORDER_MV_PIXELS_B16; - xd->up_available = 0; - xd->plane[0].dst.stride = buf->y_stride; - xd->plane[0].pre[0].stride = buf->y_stride; - xd->plane[1].dst.stride = buf->uv_stride; - xd->mi[0] = &mi_local; - mi_local.mbmi.sb_type = BLOCK_16X16; - mi_local.mbmi.ref_frame[0] = LAST_FRAME; - mi_local.mbmi.ref_frame[1] = NONE; - - for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) { - MV gld_left_mv = gld_top_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. - x->mv_col_min = -BORDER_MV_PIXELS_B16; - x->mv_col_max = (cm->mb_cols - 1) * 8 + BORDER_MV_PIXELS_B16; - 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, alt_ref, - mb_row, mb_col); - gld_left_mv = mb_stats->ref[GOLDEN_FRAME].m.mv.as_mv; - if (mb_col == 0) { - gld_top_mv = gld_left_mv; - } - 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; - } -} - -// void separate_arf_mbs_byzz -static void separate_arf_mbs(VP10_COMP *cpi) { - VP10_COMMON *const cm = &cpi->common; - int mb_col, mb_row, offset, i; - int mi_row, mi_col; - int ncnt[4] = { 0 }; - int n_frames = cpi->mbgraph_n_frames; - - int *arf_not_zz; - - CHECK_MEM_ERROR(cm, arf_not_zz, - vpx_calloc(cm->mb_rows * cm->mb_cols * sizeof(*arf_not_zz), - 1)); - - // We are not interested in results beyond the alt ref itself. - if (n_frames > cpi->rc.frames_till_gf_update_due) - n_frames = cpi->rc.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; - int golden_err = mb_stats->ref[GOLDEN_FRAME].err; - - // 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]++; - } - } - } - } - - // arf_not_zz is indexed by MB, but this loop is indexed by MI to avoid out - // of bound access in segmentation_map - for (mi_row = 0; mi_row < cm->mi_rows; mi_row++) { - for (mi_col = 0; mi_col < cm->mi_cols; mi_col++) { - // If any of the blocks in the sequence failed then the MB - // goes in segment 0 - if (arf_not_zz[mi_row / 2 * cm->mb_cols + mi_col / 2]) { - ncnt[0]++; - cpi->segmentation_map[mi_row * cm->mi_cols + mi_col] = 0; - } else { - cpi->segmentation_map[mi_row * cm->mi_cols + mi_col] = 1; - ncnt[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->mi_rows * cm->mi_cols); - - // This error case should not be reachable as this function should - // never be called with the common data structure uninitialized. - else - cpi->static_mb_pct = 0; - - vp10_enable_segmentation(&cm->seg); - } else { - cpi->static_mb_pct = 0; - vp10_disable_segmentation(&cm->seg); - } - - // Free localy allocated storage - vpx_free(arf_not_zz); -} - -void vp10_update_mbgraph_stats(VP10_COMP *cpi) { - VP10_COMMON *const cm = &cpi->common; - int i, n_frames = vp10_lookahead_depth(cpi->lookahead); - YV12_BUFFER_CONFIG *golden_ref = get_ref_frame_buffer(cpi, GOLDEN_FRAME); - - assert(golden_ref != NULL); - - // 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->rc.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]; - 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 = vp10_lookahead_peek(cpi->lookahead, i); - - assert(q_cur != NULL); - - update_mbgraph_frame_stats(cpi, frame_stats, &q_cur->img, - golden_ref, cpi->Source); - } - - vpx_clear_system_state(); - - separate_arf_mbs(cpi); -} |