ref: 37c3144ed74e8573755f37219664cb9d2e26874c
dir: /vp9/common/vp9_reconinter.h/
/*
* 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.
*/
#ifndef VP9_COMMON_VP9_RECONINTER_H_
#define VP9_COMMON_VP9_RECONINTER_H_
#include "vpx/vpx_integer.h"
#include "vp9/common/vp9_onyxc_int.h"
struct subpix_fn_table;
void vp9_build_inter_predictors_sby(MACROBLOCKD *xd,
int mb_row,
int mb_col,
BLOCK_SIZE_TYPE bsize);
void vp9_build_inter_predictors_sbuv(MACROBLOCKD *xd,
int mb_row,
int mb_col,
BLOCK_SIZE_TYPE bsize);
void vp9_build_inter_predictors_sb(MACROBLOCKD *mb,
int mb_row, int mb_col,
BLOCK_SIZE_TYPE bsize);
void vp9_setup_interp_filters(MACROBLOCKD *xd,
INTERPOLATIONFILTERTYPE filter,
VP9_COMMON *cm);
void vp9_setup_scale_factors_for_frame(struct scale_factors *scale,
YV12_BUFFER_CONFIG *other,
int this_w, int this_h);
void vp9_build_inter_predictor(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int_mv *mv_q3,
const struct scale_factors *scale,
int w, int h, int do_avg,
const struct subpix_fn_table *subpix);
void vp9_build_inter_predictor_q4(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int_mv *mv_q4,
const struct scale_factors *scale,
int w, int h, int do_avg,
const struct subpix_fn_table *subpix);
static int scale_value_x_with_scaling(int val,
const struct scale_factors *scale) {
return val * scale->x_num / scale->x_den;
}
static int scale_value_y_with_scaling(int val,
const struct scale_factors *scale) {
return val * scale->y_num / scale->y_den;
}
static int unscaled_value(int val, const struct scale_factors *scale) {
(void) scale;
return val;
}
static int scaled_buffer_offset(int x_offset,
int y_offset,
int stride,
const struct scale_factors *scale) {
if (scale)
return scale->scale_value_y(y_offset, scale) * stride +
scale->scale_value_x(x_offset, scale);
return y_offset * stride + x_offset;
}
static void setup_pred_plane(struct buf_2d *dst,
uint8_t *src, int stride,
int mi_row, int mi_col,
const struct scale_factors *scale,
int subsampling_x, int subsampling_y) {
const int x = (MI_SIZE * mi_col) >> subsampling_x;
const int y = (MI_SIZE * mi_row) >> subsampling_y;
dst->buf = src + scaled_buffer_offset(x, y, stride, scale);
dst->stride = stride;
}
// TODO(jkoleszar): audit all uses of this that don't set mb_row, mb_col
static void setup_dst_planes(MACROBLOCKD *xd,
const YV12_BUFFER_CONFIG *src,
int mi_row, int mi_col) {
setup_pred_plane(&xd->plane[0].dst,
src->y_buffer, src->y_stride,
mi_row, mi_col, NULL,
xd->plane[0].subsampling_x, xd->plane[0].subsampling_y);
setup_pred_plane(&xd->plane[1].dst,
src->u_buffer, src->uv_stride,
mi_row, mi_col, NULL,
xd->plane[1].subsampling_x, xd->plane[1].subsampling_y);
setup_pred_plane(&xd->plane[2].dst,
src->v_buffer, src->uv_stride,
mi_row, mi_col, NULL,
xd->plane[2].subsampling_x, xd->plane[2].subsampling_y);
}
static void setup_pre_planes(MACROBLOCKD *xd,
const YV12_BUFFER_CONFIG *src0,
const YV12_BUFFER_CONFIG *src1,
int mi_row, int mi_col,
const struct scale_factors *scale,
const struct scale_factors *scale_uv) {
int i;
for (i = 0; i < 2; i++) {
const YV12_BUFFER_CONFIG *src = i ? src1 : src0;
if (!src)
continue;
setup_pred_plane(&xd->plane[0].pre[i],
src->y_buffer, src->y_stride,
mi_row, mi_col, scale ? scale + i : NULL,
xd->plane[0].subsampling_x, xd->plane[0].subsampling_y);
setup_pred_plane(&xd->plane[1].pre[i],
src->u_buffer, src->uv_stride,
mi_row, mi_col, scale_uv ? scale_uv + i : NULL,
xd->plane[1].subsampling_x, xd->plane[1].subsampling_y);
setup_pred_plane(&xd->plane[2].pre[i],
src->v_buffer, src->uv_stride,
mi_row, mi_col, scale_uv ? scale_uv + i : NULL,
xd->plane[2].subsampling_x, xd->plane[2].subsampling_y);
}
}
static void setup_pred_block(YV12_BUFFER_CONFIG *dst,
const YV12_BUFFER_CONFIG *src,
int mi_row, int mi_col,
const struct scale_factors *scale,
const struct scale_factors *scale_uv) {
const int recon_y_stride = src->y_stride;
const int recon_uv_stride = src->uv_stride;
int recon_yoffset;
int recon_uvoffset;
if (scale) {
recon_yoffset = scaled_buffer_offset(MI_SIZE * mi_col, MI_SIZE * mi_row,
recon_y_stride, scale);
recon_uvoffset = scaled_buffer_offset(MI_UV_SIZE * mi_col,
MI_UV_SIZE * mi_row,
recon_uv_stride, scale_uv);
} else {
recon_yoffset = MI_SIZE * mi_row * recon_y_stride + MI_SIZE * mi_col;
recon_uvoffset = MI_UV_SIZE * mi_row * recon_uv_stride +
MI_UV_SIZE * mi_col;
}
*dst = *src;
dst->y_buffer += recon_yoffset;
dst->u_buffer += recon_uvoffset;
dst->v_buffer += recon_uvoffset;
}
static void set_scale_factors(MACROBLOCKD *xd,
int ref0, int ref1,
struct scale_factors scale_factor[MAX_REF_FRAMES]) {
xd->scale_factor[0] = scale_factor[ref0 >= 0 ? ref0 : 0];
xd->scale_factor[1] = scale_factor[ref1 >= 0 ? ref1 : 0];
xd->scale_factor_uv[0] = xd->scale_factor[0];
xd->scale_factor_uv[1] = xd->scale_factor[1];
}
static void set_offsets_with_scaling(struct scale_factors *scale,
int row, int col) {
const int x_q4 = 16 * col;
const int y_q4 = 16 * row;
scale->x_offset_q4 = (x_q4 * scale->x_num / scale->x_den) & 0xf;
scale->y_offset_q4 = (y_q4 * scale->y_num / scale->y_den) & 0xf;
}
static void set_offsets_without_scaling(struct scale_factors *scale,
int row, int col) {
scale->x_offset_q4 = 0;
scale->y_offset_q4 = 0;
}
static int_mv32 motion_vector_q3_to_q4_with_scaling(
const int_mv *src_mv,
const struct scale_factors *scale) {
// returns mv * scale + offset
int_mv32 result;
const int32_t mv_row_q4 = src_mv->as_mv.row << 1;
const int32_t mv_col_q4 = src_mv->as_mv.col << 1;
/* TODO(jkoleszar): make fixed point, or as a second multiply? */
result.as_mv.row = mv_row_q4 * scale->y_num / scale->y_den
+ scale->y_offset_q4;
result.as_mv.col = mv_col_q4 * scale->x_num / scale->x_den
+ scale->x_offset_q4;
return result;
}
static int_mv32 motion_vector_q3_to_q4_without_scaling(
const int_mv *src_mv,
const struct scale_factors *scale) {
// returns mv * scale + offset
int_mv32 result;
result.as_mv.row = src_mv->as_mv.row << 1;
result.as_mv.col = src_mv->as_mv.col << 1;
return result;
}
static int32_t motion_vector_component_q4_with_scaling(int mv_q4,
int num,
int den,
int offset_q4) {
// returns the scaled and offset value of the mv component.
/* TODO(jkoleszar): make fixed point, or as a second multiply? */
return mv_q4 * num / den + offset_q4;
}
static int32_t motion_vector_component_q4_without_scaling(int mv_q4,
int num,
int den,
int offset_q4) {
// returns the scaled and offset value of the mv component.
(void)num;
(void)den;
(void)offset_q4;
return mv_q4;
}
#endif // VP9_COMMON_VP9_RECONINTER_H_