2a5278bdbd
Increase the motion search range by 4x. Change MV_CLASS tree of the entropy coding to allow two additional mv classes to cover the extended motion vector limit. The codec determines the effective motion search range conditioned on the actual frame dimension. It provides coding gains: stdhd 0.39% yt 0.56% hd 0.47% Major coding performance gains are packed in several sequences with intense motion activities, e.g., ped_1080p gains 7% at high bit-rates, and on average 3%. TODO: Need to further tune the rate control and motion search units. Change-Id: Ib842540a6796fbee5a797809433ef6a477c6d78d
84 lines
3.7 KiB
C
84 lines
3.7 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 10
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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, BLOCK *b,
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BLOCKD *d, 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, BLOCK *b, BLOCKD *d,
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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, BLOCK *b, BLOCKD *d, 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, BLOCK *b, BLOCKD *d,
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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);
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typedef int (*vp9_refining_search_fn_t)(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
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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, BLOCK *b, BLOCKD *d,
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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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#endif // VP9_ENCODER_VP9_MCOMP_H_
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