vpx/vp9/encoder/vp9_mcomp.h
Deb Mukherjee 71b43b0ff0 Clean ups of the subpel search functions
Removes some unused code and speed features, and organizes the
interfaces for fractional mv step functions for use in new speed
features to come.

In the process a new speed feature - number of iterations per
step during the subpel search - is exposed.

No change when this parameter is set as the original value of 3.

Results:
subpel_iters_per_step = 3: baseline
subpel_iters_per_step = 2: psnr -0.067%, 1% speedup
subpel_iters_per_step = 1: psnr -0.331%, 3-4% speedup

Change-Id: I2eba8a21f6461be8caf56af04a5337257a5693a8
2013-08-06 17:23:50 -07:00

124 lines
4.9 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_ENCODER_VP9_MCOMP_H_
#define VP9_ENCODER_VP9_MCOMP_H_
#include "vp9/encoder/vp9_block.h"
#include "vp9/encoder/vp9_variance.h"
// The maximum number of steps in a step search given the largest
// allowed initial step
#define MAX_MVSEARCH_STEPS 11
// Max full pel mv specified in 1 pel units
#define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS)) - 1)
// Maximum size of the first step in full pel units
#define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS-1))
void vp9_clamp_mv_min_max(MACROBLOCK *x, int_mv *ref_mv);
int vp9_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvjcost,
int *mvcost[2], int weight);
void vp9_init_dsmotion_compensation(MACROBLOCK *x, int stride);
void vp9_init3smotion_compensation(MACROBLOCK *x, int stride);
struct VP9_COMP;
int vp9_init_search_range(struct VP9_COMP *cpi, int size);
// Runs sequence of diamond searches in smaller steps for RD
int vp9_full_pixel_diamond(struct VP9_COMP *cpi, MACROBLOCK *x,
int_mv *mvp_full, int step_param,
int sadpb, int further_steps, int do_refine,
vp9_variance_fn_ptr_t *fn_ptr,
int_mv *ref_mv, int_mv *dst_mv);
int vp9_hex_search(MACROBLOCK *x,
int_mv *ref_mv,
int search_param,
int error_per_bit,
int do_init_search,
const vp9_variance_fn_ptr_t *vf,
int use_mvcost,
int_mv *center_mv,
int_mv *best_mv);
int vp9_bigdia_search(MACROBLOCK *x,
int_mv *ref_mv,
int search_param,
int error_per_bit,
int do_init_search,
const vp9_variance_fn_ptr_t *vf,
int use_mvcost,
int_mv *center_mv,
int_mv *best_mv);
int vp9_square_search(MACROBLOCK *x,
int_mv *ref_mv,
int search_param,
int error_per_bit,
int do_init_search,
const vp9_variance_fn_ptr_t *vf,
int use_mvcost,
int_mv *center_mv,
int_mv *best_mv);
typedef int (fractional_mv_step_fp) (
MACROBLOCK *x,
int_mv *bestmv,
int_mv *ref_mv,
int error_per_bit,
const vp9_variance_fn_ptr_t *vfp,
int forced_stop, // 0 - full, 1 - qtr only, 2 - half only
int iters_per_step,
int *mvjcost,
int *mvcost[2],
int *distortion,
unsigned int *sse);
extern fractional_mv_step_fp vp9_find_best_sub_pixel_iterative;
typedef int (*vp9_full_search_fn_t)(MACROBLOCK *x,
int_mv *ref_mv, int sad_per_bit,
int distance, vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2],
int_mv *center_mv, int n);
typedef int (*vp9_refining_search_fn_t)(MACROBLOCK *x,
int_mv *ref_mv, int sad_per_bit,
int distance,
vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2],
int_mv *center_mv);
typedef int (*vp9_diamond_search_fn_t)(MACROBLOCK *x,
int_mv *ref_mv, int_mv *best_mv,
int search_param, int sad_per_bit,
int *num00,
vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2],
int_mv *center_mv);
int vp9_find_best_sub_pixel_comp_iterative(
MACROBLOCK *x,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp9_variance_fn_ptr_t *vfp,
int forced_stop, // 0 - full, 1 - qtr only, 2 - half only
int iters_per_step,
int *mvjcost, int *mvcost[2],
int *distortion, unsigned int *sse1,
const uint8_t *second_pred,
int w, int h);
int vp9_refining_search_8p_c(MACROBLOCK *x,
int_mv *ref_mv, int error_per_bit,
int search_range, vp9_variance_fn_ptr_t *fn_ptr,
int *mvjcost, int *mvcost[2],
int_mv *center_mv, const uint8_t *second_pred,
int w, int h);
#endif // VP9_ENCODER_VP9_MCOMP_H_