d124465975
Some further changes and refactoring of mv reference code and selection of center point for searches. Mainly relates to not passing so many different local copies of things around. Some place holder comments. Change-Id: I309f10ffe9a9cde7663e7eae19eb594371c8d055
185 lines
5.7 KiB
C
185 lines
5.7 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_COMMON_VP9_FINDNEARMV_H_
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#define VP9_COMMON_VP9_FINDNEARMV_H_
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#include "vp9/common/vp9_mv.h"
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#include "vp9/common/vp9_blockd.h"
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#include "vp9/common/vp9_treecoder.h"
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#include "vp9/common/vp9_onyxc_int.h"
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/* check a list of motion vectors by sad score using a number rows of pixels
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* above and a number cols of pixels in the left to select the one with best
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* score to use as ref motion vector
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*/
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void vp9_find_best_ref_mvs(MACROBLOCKD *xd,
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unsigned char *ref_y_buffer,
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int ref_y_stride,
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int_mv *mvlist,
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int_mv *nearest,
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int_mv *near);
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static void mv_bias(int refmb_ref_frame_sign_bias, int refframe, int_mv *mvp, const int *ref_frame_sign_bias) {
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MV xmv;
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xmv = mvp->as_mv;
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if (refmb_ref_frame_sign_bias != ref_frame_sign_bias[refframe]) {
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xmv.row *= -1;
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xmv.col *= -1;
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}
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mvp->as_mv = xmv;
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}
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#define LEFT_TOP_MARGIN (16 << 3)
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#define RIGHT_BOTTOM_MARGIN (16 << 3)
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static void clamp_mv(int_mv *mv,
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int mb_to_left_edge,
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int mb_to_right_edge,
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int mb_to_top_edge,
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int mb_to_bottom_edge) {
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mv->as_mv.col = (mv->as_mv.col < mb_to_left_edge) ?
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mb_to_left_edge : mv->as_mv.col;
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mv->as_mv.col = (mv->as_mv.col > mb_to_right_edge) ?
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mb_to_right_edge : mv->as_mv.col;
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mv->as_mv.row = (mv->as_mv.row < mb_to_top_edge) ?
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mb_to_top_edge : mv->as_mv.row;
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mv->as_mv.row = (mv->as_mv.row > mb_to_bottom_edge) ?
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mb_to_bottom_edge : mv->as_mv.row;
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}
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static void clamp_mv2(int_mv *mv, const MACROBLOCKD *xd) {
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clamp_mv(mv,
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xd->mb_to_left_edge - LEFT_TOP_MARGIN,
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xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN,
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xd->mb_to_top_edge - LEFT_TOP_MARGIN,
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xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN);
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}
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static unsigned int check_mv_bounds(int_mv *mv,
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int mb_to_left_edge,
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int mb_to_right_edge,
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int mb_to_top_edge,
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int mb_to_bottom_edge) {
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return (mv->as_mv.col < mb_to_left_edge) ||
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(mv->as_mv.col > mb_to_right_edge) ||
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(mv->as_mv.row < mb_to_top_edge) ||
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(mv->as_mv.row > mb_to_bottom_edge);
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}
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vp9_prob *vp9_mv_ref_probs(VP9_COMMON *pc,
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vp9_prob p[VP9_MVREFS - 1],
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const int context);
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extern const unsigned char vp9_mbsplit_offset[4][16];
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static int left_block_mv(const MODE_INFO *cur_mb, int b) {
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if (!(b & 3)) {
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/* On L edge, get from MB to left of us */
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--cur_mb;
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if (cur_mb->mbmi.mode != SPLITMV)
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return cur_mb->mbmi.mv[0].as_int;
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b += 4;
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}
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return (cur_mb->bmi + b - 1)->as_mv.first.as_int;
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}
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static int left_block_second_mv(const MODE_INFO *cur_mb, int b) {
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if (!(b & 3)) {
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/* On L edge, get from MB to left of us */
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--cur_mb;
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if (cur_mb->mbmi.mode != SPLITMV)
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return cur_mb->mbmi.second_ref_frame > 0 ?
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cur_mb->mbmi.mv[1].as_int : cur_mb->mbmi.mv[0].as_int;
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b += 4;
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}
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return cur_mb->mbmi.second_ref_frame > 0 ?
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(cur_mb->bmi + b - 1)->as_mv.second.as_int :
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(cur_mb->bmi + b - 1)->as_mv.first.as_int;
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}
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static int above_block_mv(const MODE_INFO *cur_mb, int b, int mi_stride) {
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if (!(b >> 2)) {
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/* On top edge, get from MB above us */
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cur_mb -= mi_stride;
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if (cur_mb->mbmi.mode != SPLITMV)
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return cur_mb->mbmi.mv[0].as_int;
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b += 16;
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}
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return (cur_mb->bmi + b - 4)->as_mv.first.as_int;
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}
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static int above_block_second_mv(const MODE_INFO *cur_mb, int b, int mi_stride) {
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if (!(b >> 2)) {
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/* On top edge, get from MB above us */
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cur_mb -= mi_stride;
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if (cur_mb->mbmi.mode != SPLITMV)
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return cur_mb->mbmi.second_ref_frame > 0 ?
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cur_mb->mbmi.mv[1].as_int : cur_mb->mbmi.mv[0].as_int;
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b += 16;
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}
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return cur_mb->mbmi.second_ref_frame > 0 ?
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(cur_mb->bmi + b - 4)->as_mv.second.as_int :
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(cur_mb->bmi + b - 4)->as_mv.first.as_int;
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}
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static B_PREDICTION_MODE left_block_mode(const MODE_INFO *cur_mb, int b) {
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if (!(b & 3)) {
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/* On L edge, get from MB to left of us */
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--cur_mb;
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if (cur_mb->mbmi.mode < I8X8_PRED) {
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return pred_mode_conv(cur_mb->mbmi.mode);
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} else if (cur_mb->mbmi.mode == I8X8_PRED) {
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return pred_mode_conv(
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(MB_PREDICTION_MODE)(cur_mb->bmi + 3 + b)->as_mode.first);
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} else if (cur_mb->mbmi.mode == B_PRED) {
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return ((cur_mb->bmi + 3 + b)->as_mode.first);
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} else {
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return B_DC_PRED;
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}
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}
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return (cur_mb->bmi + b - 1)->as_mode.first;
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}
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static B_PREDICTION_MODE above_block_mode(const MODE_INFO *cur_mb,
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int b, int mi_stride) {
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if (!(b >> 2)) {
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/* On top edge, get from MB above us */
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cur_mb -= mi_stride;
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if (cur_mb->mbmi.mode < I8X8_PRED) {
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return pred_mode_conv(cur_mb->mbmi.mode);
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} else if (cur_mb->mbmi.mode == I8X8_PRED) {
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return pred_mode_conv(
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(MB_PREDICTION_MODE)(cur_mb->bmi + 12 + b)->as_mode.first);
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} else if (cur_mb->mbmi.mode == B_PRED) {
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return ((cur_mb->bmi + 12 + b)->as_mode.first);
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} else {
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return B_DC_PRED;
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}
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}
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return (cur_mb->bmi + b - 4)->as_mode.first;
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}
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#endif
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