15b5a6a2c7
Adds a few pattern searches to achieve various tradeoffs between motion estimation complexity and performance. The search framework is unified across these searches so that a common pattern search function is used for all. Besides it will be easier to experiment with various patterns or combinations thereof at different scales in the future. The new pattern search is multi-scale and is capable of using different patterns at different scales. The new hex search uses 8 points at the smallest scale and 6 points at other scales. Two other pattern searches - big-diamond and square are also added. Big diamond uses 4 points at the smallest scale and 8 points in diamond shape at the larger scales. Square is very similar conceptually to the default n-step search but is somewhat faster since it keeps only one survivor across all scales. Psnr/speed-up results on derf300: hex: -1.6% psnr%, 6-8% speed-up big-diamond: -0.96% psnr, 4-5% speedup square: -0.93% psnr, 4-5% speedup Change-Id: I02a7ef5193f762601e0994e2c99399a3535a43d2
114 lines
5.0 KiB
C
114 lines
5.0 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 VP9_ENCODER_VP9_MCOMP_H_
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#define VP9_ENCODER_VP9_MCOMP_H_
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#include "vp9/encoder/vp9_block.h"
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#include "vp9/encoder/vp9_variance.h"
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// The maximum number of steps in a step search given the largest
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// allowed initial step
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#define MAX_MVSEARCH_STEPS 11
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// Max full pel mv specified in 1 pel units
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#define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS)) - 1)
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// Maximum size of the first step in full pel units
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#define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS-1))
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void vp9_clamp_mv_min_max(MACROBLOCK *x, int_mv *ref_mv);
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int vp9_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvjcost,
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int *mvcost[2], int weight);
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void vp9_init_dsmotion_compensation(MACROBLOCK *x, int stride);
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void vp9_init3smotion_compensation(MACROBLOCK *x, int stride);
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struct VP9_COMP;
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int vp9_init_search_range(struct VP9_COMP *cpi, int size);
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// Runs sequence of diamond searches in smaller steps for RD
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int vp9_full_pixel_diamond(struct VP9_COMP *cpi, MACROBLOCK *x,
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int_mv *mvp_full, int step_param,
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int sadpb, int further_steps, int do_refine,
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vp9_variance_fn_ptr_t *fn_ptr,
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int_mv *ref_mv, int_mv *dst_mv);
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int vp9_hex_search(MACROBLOCK *x,
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int_mv *ref_mv,
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int search_param,
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int error_per_bit,
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int do_init_search,
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const vp9_variance_fn_ptr_t *vf,
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int use_mvcost,
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int_mv *center_mv,
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int_mv *best_mv);
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int vp9_bigdia_search(MACROBLOCK *x,
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int_mv *ref_mv,
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int search_param,
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int error_per_bit,
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int do_init_search,
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const vp9_variance_fn_ptr_t *vf,
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int use_mvcost,
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int_mv *center_mv,
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int_mv *best_mv);
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int vp9_square_search(MACROBLOCK *x,
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int_mv *ref_mv,
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int search_param,
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int error_per_bit,
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int do_init_search,
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const vp9_variance_fn_ptr_t *vf,
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int use_mvcost,
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int_mv *center_mv,
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int_mv *best_mv);
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typedef int (fractional_mv_step_fp) (MACROBLOCK *x, int_mv
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*bestmv, int_mv *ref_mv, int error_per_bit, const vp9_variance_fn_ptr_t *vfp,
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int *mvjcost, int *mvcost[2], int *distortion, unsigned int *sse);
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extern fractional_mv_step_fp vp9_find_best_sub_pixel_step_iteratively;
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extern fractional_mv_step_fp vp9_find_best_sub_pixel_step;
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extern fractional_mv_step_fp vp9_find_best_half_pixel_step;
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typedef int (*vp9_full_search_fn_t)(MACROBLOCK *x,
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int_mv *ref_mv, int sad_per_bit,
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int distance, vp9_variance_fn_ptr_t *fn_ptr,
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int *mvjcost, int *mvcost[2],
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int_mv *center_mv, int n);
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typedef int (*vp9_refining_search_fn_t)(MACROBLOCK *x,
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int_mv *ref_mv, int sad_per_bit,
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int distance,
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vp9_variance_fn_ptr_t *fn_ptr,
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int *mvjcost, int *mvcost[2],
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int_mv *center_mv);
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typedef int (*vp9_diamond_search_fn_t)(MACROBLOCK *x,
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int_mv *ref_mv, int_mv *best_mv,
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int search_param, int sad_per_bit,
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int *num00,
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vp9_variance_fn_ptr_t *fn_ptr,
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int *mvjcost, int *mvcost[2],
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int_mv *center_mv);
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int vp9_find_best_sub_pixel_comp(MACROBLOCK *x,
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int_mv *bestmv, int_mv *ref_mv,
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int error_per_bit,
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const vp9_variance_fn_ptr_t *vfp,
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int *mvjcost, int *mvcost[2],
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int *distortion, unsigned int *sse1,
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const uint8_t *second_pred,
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int w, int h);
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int vp9_refining_search_8p_c(MACROBLOCK *x,
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int_mv *ref_mv, int error_per_bit,
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int search_range, vp9_variance_fn_ptr_t *fn_ptr,
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int *mvjcost, int *mvcost[2],
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int_mv *center_mv, const uint8_t *second_pred,
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int w, int h);
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#endif // VP9_ENCODER_VP9_MCOMP_H_
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