9f5811c2da
In current code, motion vectors got from single prediction mode are used in compound prediction mode directly. These motion vectors may not give accurate prediction since they are searched independently. In this patch, we took Pascal's suggestion, and did joint motion search in compound prediction mode to find better motion vectors in this situation. Test results: Overall PSNR: 0.570%(derf), 0.918%(stdhd); SSIM: 0.572%(derf), 1.009%(stdhd); The encoder is a little slower. This can be improved since some c code is used in motion search. Change-Id: Ib30c9240f6c56c9b070867b4ca89412a76d9f3c6
100 lines
4.5 KiB
C
100 lines
4.5 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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#ifdef ENTROPY_STATS
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void print_mode_context(VP9_COMMON *pc);
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#endif
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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_init_search_range(int width, int height);
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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, int ishp);
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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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// Runs sequence of diamond searches in smaller steps for RD
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struct VP9_COMP;
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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, int_mv *best_mv,
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int search_param, int error_per_bit,
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const vp9_variance_fn_ptr_t *vf,
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int *mvjsadcost, int *mvsadcost[2],
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int *mvjcost, int *mvcost[2],
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int_mv *center_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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#if CONFIG_COMP_INTER_JOINT_SEARCH
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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 // CONFIG_COMP_INTER_JOINT_SEARCH
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#endif // VP9_ENCODER_VP9_MCOMP_H_
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