d8c525b8b1
error_per_bit and sad_per_bit were designed as estimates of a bit worth of sum squared error and sum absolute difference respectively. Under this assumption, error_per_bit should be used in combination with 2nd order errors (variance or sum squared error) while sad_per_bit should be used in combination with 1st order SADs in motion estimation. There were a few places where sad_per_bit has been misused with variances, this commit changes to use error_per_bit for those places, also changes parameter names to properly indicate which constant is being used. On cif set, the change has a universal gain by all metrics: 0.13% by average/overall psnr and 0.1% by ssim. Change-Id: I4850fdcc3fd6886b30f784bd843f13dd401215fb
149 lines
4.3 KiB
C
149 lines
4.3 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 __INC_MCOMP_H
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#define __INC_MCOMP_H
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#include "block.h"
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#include "variance.h"
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#ifdef ENTROPY_STATS
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extern void init_mv_ref_counts();
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extern void accum_mv_refs(MB_PREDICTION_MODE, const int near_mv_ref_cts[4]);
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#endif
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#define MAX_MVSEARCH_STEPS 8 // The maximum number of steps in a step search given the largest allowed initial step
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#define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS+3)) - 8) // Max full pel mv specified in 1/8 pel units
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#define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS-1)) // Maximum size of the first step in full pel units
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extern void print_mode_context(void);
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extern int vp8_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int Weight);
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extern void vp8_init_dsmotion_compensation(MACROBLOCK *x, int stride);
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extern void vp8_init3smotion_compensation(MACROBLOCK *x, int stride);
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extern int vp8_hex_search
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(
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MACROBLOCK *x,
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BLOCK *b,
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BLOCKD *d,
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int_mv *ref_mv,
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int_mv *best_mv,
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int search_param,
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int error_per_bit,
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int *num00,
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const vp8_variance_fn_ptr_t *vf,
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int *mvsadcost[2],
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int *mvcost[2],
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int_mv *center_mv
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);
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typedef int (fractional_mv_step_fp)
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(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *bestmv, int_mv *ref_mv,
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int error_per_bit, const vp8_variance_fn_ptr_t *vfp, int *mvcost[2],
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int *distortion, unsigned int *sse);
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extern fractional_mv_step_fp vp8_find_best_sub_pixel_step_iteratively;
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extern fractional_mv_step_fp vp8_find_best_sub_pixel_step;
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extern fractional_mv_step_fp vp8_find_best_half_pixel_step;
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extern fractional_mv_step_fp vp8_skip_fractional_mv_step;
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#define prototype_full_search_sad(sym)\
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int (sym)\
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(\
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MACROBLOCK *x, \
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BLOCK *b, \
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BLOCKD *d, \
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int_mv *ref_mv, \
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int sad_per_bit, \
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int distance, \
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vp8_variance_fn_ptr_t *fn_ptr, \
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int *mvcost[2], \
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int_mv *center_mv \
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)
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#define prototype_refining_search_sad(sym)\
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int (sym)\
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(\
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MACROBLOCK *x, \
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BLOCK *b, \
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BLOCKD *d, \
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int_mv *ref_mv, \
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int sad_per_bit, \
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int distance, \
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vp8_variance_fn_ptr_t *fn_ptr, \
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int *mvcost[2], \
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int_mv *center_mv \
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)
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#define prototype_diamond_search_sad(sym)\
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int (sym)\
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(\
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MACROBLOCK *x, \
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BLOCK *b, \
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BLOCKD *d, \
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int_mv *ref_mv, \
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int_mv *best_mv, \
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int search_param, \
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int sad_per_bit, \
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int *num00, \
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vp8_variance_fn_ptr_t *fn_ptr, \
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int *mvcost[2], \
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int_mv *center_mv \
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)
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#if ARCH_X86 || ARCH_X86_64
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#include "x86/mcomp_x86.h"
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#endif
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typedef prototype_full_search_sad(*vp8_full_search_fn_t);
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extern prototype_full_search_sad(vp8_full_search_sad);
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extern prototype_full_search_sad(vp8_full_search_sadx3);
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extern prototype_full_search_sad(vp8_full_search_sadx8);
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typedef prototype_refining_search_sad(*vp8_refining_search_fn_t);
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extern prototype_refining_search_sad(vp8_refining_search_sad);
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extern prototype_refining_search_sad(vp8_refining_search_sadx4);
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typedef prototype_diamond_search_sad(*vp8_diamond_search_fn_t);
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extern prototype_diamond_search_sad(vp8_diamond_search_sad);
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extern prototype_diamond_search_sad(vp8_diamond_search_sadx4);
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#ifndef vp8_search_full_search
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#define vp8_search_full_search vp8_full_search_sad
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#endif
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extern prototype_full_search_sad(vp8_search_full_search);
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#ifndef vp8_search_refining_search
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#define vp8_search_refining_search vp8_refining_search_sad
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#endif
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extern prototype_refining_search_sad(vp8_search_refining_search);
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#ifndef vp8_search_diamond_search
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#define vp8_search_diamond_search vp8_diamond_search_sad
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#endif
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extern prototype_diamond_search_sad(vp8_search_diamond_search);
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typedef struct
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{
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prototype_full_search_sad(*full_search);
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prototype_refining_search_sad(*refining_search);
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prototype_diamond_search_sad(*diamond_search);
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} vp8_search_rtcd_vtable_t;
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#if CONFIG_RUNTIME_CPU_DETECT
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#define SEARCH_INVOKE(ctx,fn) (ctx)->fn
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#else
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#define SEARCH_INVOKE(ctx,fn) vp8_search_##fn
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#endif
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#endif
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