vpx/vp9/common/vp9_findnearmv.h

96 lines
3.3 KiB
C
Raw Normal View History

2010-05-18 17:58:33 +02:00
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
2010-05-18 17:58:33 +02:00
*
* 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.
2010-05-18 17:58:33 +02:00
*/
#ifndef VP9_COMMON_VP9_FINDNEARMV_H_
#define VP9_COMMON_VP9_FINDNEARMV_H_
2010-05-18 17:58:33 +02:00
#include "vp9/common/vp9_mv.h"
#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_treecoder.h"
#include "vp9/common/vp9_onyxc_int.h"
2010-05-18 17:58:33 +02:00
#define LEFT_TOP_MARGIN ((VP9BORDERINPIXELS - VP9_INTERP_EXTEND) << 3)
#define RIGHT_BOTTOM_MARGIN ((VP9BORDERINPIXELS - VP9_INTERP_EXTEND) << 3)
// check a list of motion vectors by sad score using a number rows of pixels
// above and a number cols of pixels in the left to select the one with best
// score to use as ref motion vector
void vp9_find_best_ref_mvs(MACROBLOCKD *xd,
int_mv *mvlist,
int_mv *nearest,
int_mv *near);
// TODO(jingning): this mv clamping function should be block size dependent.
static void clamp_mv(int_mv *mv,
int mb_to_left_edge,
int mb_to_right_edge,
int mb_to_top_edge,
int mb_to_bottom_edge) {
mv->as_mv.col = clamp(mv->as_mv.col, mb_to_left_edge, mb_to_right_edge);
mv->as_mv.row = clamp(mv->as_mv.row, mb_to_top_edge, mb_to_bottom_edge);
}
static int clamp_mv2(int_mv *mv, const MACROBLOCKD *xd) {
int_mv tmp_mv;
tmp_mv.as_int = mv->as_int;
clamp_mv(mv,
xd->mb_to_left_edge - LEFT_TOP_MARGIN,
xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN,
xd->mb_to_top_edge - LEFT_TOP_MARGIN,
xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN);
return tmp_mv.as_int != mv->as_int;
}
void vp9_append_sub8x8_mvs_for_idx(VP9_COMMON *pc,
MACROBLOCKD *xd,
int_mv *dst_nearest,
int_mv *dst_near,
int block_idx, int ref_idx);
static MB_PREDICTION_MODE left_block_mode(const MODE_INFO *cur_mb, int b) {
// FIXME(rbultje, jingning): temporary hack because jenkins doesn't
// understand this condition. This will go away soon.
if (b == 0 || b == 2) {
/* On L edge, get from MB to left of us */
--cur_mb;
if (cur_mb->mbmi.ref_frame[0] != INTRA_FRAME) {
return DC_PRED;
} else if (cur_mb->mbmi.sb_type < BLOCK_SIZE_SB8X8) {
return ((cur_mb->bmi + 1 + b)->as_mode);
} else {
return cur_mb->mbmi.mode;
}
}
assert(b == 1 || b == 3);
return (cur_mb->bmi + b - 1)->as_mode;
}
static MB_PREDICTION_MODE above_block_mode(const MODE_INFO *cur_mb,
int b, int mi_stride) {
if (!(b >> 1)) {
/* On top edge, get from MB above us */
cur_mb -= mi_stride;
if (cur_mb->mbmi.ref_frame[0] != INTRA_FRAME) {
return DC_PRED;
} else if (cur_mb->mbmi.sb_type < BLOCK_SIZE_SB8X8) {
return ((cur_mb->bmi + 2 + b)->as_mode);
} else {
return cur_mb->mbmi.mode;
}
}
return (cur_mb->bmi + b - 2)->as_mode;
}
#endif // VP9_COMMON_VP9_FINDNEARMV_H_