360c80cfb9
In good quality mode motion search, the best matches are normally found after searching in a large area. In real time mode, to make encoding fast, a center-biased fast HEX search is used, which converges quickly most of the time. A 4-point diamond search is also carried out as the following refining search, which gives more precise results, and maintains good motion search quality. At speed 5, the borg test on rtc set showed an overall PSNR loss of 0.936%. The encoding speed gain is 4% - 5%. Change-Id: I42cd68bb56a09ca1b86293c99d5f7312225ca7ae
151 lines
5.8 KiB
C
151 lines
5.8 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 __cplusplus
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extern "C" {
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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 the unit of full pixel
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// Enable the use of motion vector in range [-1023, 1023].
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#define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS - 1)) - 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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// Allowed motion vector pixel distance outside image border
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// for Block_16x16
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#define BORDER_MV_PIXELS_B16 (16 + VP9_INTERP_EXTEND)
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void vp9_set_mv_search_range(MACROBLOCK *x, const MV *mv);
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int vp9_mv_bit_cost(const MV *mv, const MV *ref,
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const int *mvjcost, 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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MV *mvp_full, int step_param,
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int sadpb, int further_steps, int do_refine,
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const vp9_variance_fn_ptr_t *fn_ptr,
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const MV *ref_mv, MV *dst_mv);
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int vp9_hex_search(const MACROBLOCK *x,
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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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const MV *center_mv,
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MV *best_mv);
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int vp9_bigdia_search(const MACROBLOCK *x,
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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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const MV *center_mv,
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MV *best_mv);
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int vp9_square_search(const MACROBLOCK *x,
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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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const MV *center_mv,
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MV *best_mv);
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int vp9_fast_hex_search(const MACROBLOCK *x,
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MV *ref_mv,
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int search_param,
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int sad_per_bit,
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const vp9_variance_fn_ptr_t *vfp,
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int use_mvcost,
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const MV *center_mv,
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MV *best_mv);
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typedef int (fractional_mv_step_fp) (
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const MACROBLOCK *x,
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MV *bestmv, const MV *ref_mv,
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int allow_hp,
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int error_per_bit,
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const vp9_variance_fn_ptr_t *vfp,
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int forced_stop, // 0 - full, 1 - qtr only, 2 - half only
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int iters_per_step,
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int *mvjcost,
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int *mvcost[2],
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int *distortion,
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unsigned int *sse);
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extern fractional_mv_step_fp vp9_find_best_sub_pixel_tree;
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typedef int (fractional_mv_step_comp_fp) (
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const MACROBLOCK *x,
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MV *bestmv, const MV *ref_mv,
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int allow_hp,
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int error_per_bit,
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const vp9_variance_fn_ptr_t *vfp,
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int forced_stop, // 0 - full, 1 - qtr only, 2 - half only
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int iters_per_step,
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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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extern fractional_mv_step_comp_fp vp9_find_best_sub_pixel_comp_tree;
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typedef int (*vp9_full_search_fn_t)(const MACROBLOCK *x,
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const MV *ref_mv, int sad_per_bit,
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int distance,
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const vp9_variance_fn_ptr_t *fn_ptr,
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int *mvjcost, int *mvcost[2],
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const MV *center_mv, int n);
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typedef int (*vp9_refining_search_fn_t)(const MACROBLOCK *x,
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MV *ref_mv, int sad_per_bit,
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int distance,
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const vp9_variance_fn_ptr_t *fn_ptr,
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int *mvjcost, int *mvcost[2],
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const MV *center_mv);
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typedef int (*vp9_diamond_search_fn_t)(const MACROBLOCK *x,
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MV *ref_mv, MV *best_mv,
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int search_param, int sad_per_bit,
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int *num00,
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const vp9_variance_fn_ptr_t *fn_ptr,
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int *mvjcost, int *mvcost[2],
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const MV *center_mv);
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int vp9_refining_search_8p_c(const MACROBLOCK *x,
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MV *ref_mv, int error_per_bit,
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int search_range,
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const vp9_variance_fn_ptr_t *fn_ptr,
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int *mvjcost, int *mvcost[2],
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const MV *center_mv, const uint8_t *second_pred,
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int w, int h);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VP9_ENCODER_VP9_MCOMP_H_
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