148eb803bb
In decoder, the scaling calculation, such as (mv * x_num / x_den), is fairly time-consuming. In this patch, we check if the scaling happens or not at frame level, and then decide which function to call to skip scaling calculation when no scaling is needed. Tests showed a 3% decoder performance gain. Change-Id: I270901dd0331048e50368cfd51ce273dd82b8733
202 lines
7.6 KiB
C
202 lines
7.6 KiB
C
/*
|
|
* 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_inter16x16_predictors_mby(MACROBLOCKD *xd,
|
|
uint8_t *dst_y,
|
|
int dst_ystride,
|
|
int mb_row,
|
|
int mb_col);
|
|
|
|
void vp9_build_inter16x16_predictors_mbuv(MACROBLOCKD *xd,
|
|
uint8_t *dst_u,
|
|
uint8_t *dst_v,
|
|
int dst_uvstride,
|
|
int mb_row,
|
|
int mb_col);
|
|
|
|
void vp9_build_inter16x16_predictors_mb(MACROBLOCKD *xd,
|
|
uint8_t *dst_y,
|
|
uint8_t *dst_u,
|
|
uint8_t *dst_v,
|
|
int dst_ystride,
|
|
int dst_uvstride,
|
|
int mb_row,
|
|
int mb_col);
|
|
|
|
void vp9_build_inter_predictors_sb(MACROBLOCKD *mb,
|
|
int mb_row, int mb_col,
|
|
BLOCK_SIZE_TYPE bsize);
|
|
|
|
void vp9_build_inter_predictors_mb(MACROBLOCKD *xd,
|
|
int mb_row,
|
|
int mb_col);
|
|
|
|
void vp9_build_inter_predictors_mb_s(MACROBLOCKD *xd,
|
|
int mb_row,
|
|
int mb_col);
|
|
|
|
void vp9_build_inter4x4_predictors_mbuv(MACROBLOCKD *xd,
|
|
int mb_row,
|
|
int mb_col);
|
|
|
|
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 *fullpel_mv_q3,
|
|
const int_mv *frac_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) {
|
|
return scale->scale_value_y(y_offset, scale) * stride +
|
|
scale->scale_value_x(x_offset, scale);
|
|
}
|
|
|
|
static void setup_pred_block(YV12_BUFFER_CONFIG *dst,
|
|
const YV12_BUFFER_CONFIG *src,
|
|
int mb_row, int mb_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(16 * mb_col, 16 * mb_row,
|
|
recon_y_stride, scale);
|
|
recon_uvoffset = scaled_buffer_offset(8 * mb_col, 8 * mb_row,
|
|
recon_uv_stride, scale_uv);
|
|
} else {
|
|
recon_yoffset = 16 * mb_row * recon_y_stride + 16 * mb_col;
|
|
recon_uvoffset = 8 * mb_row * recon_uv_stride + 8 * mb_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_
|