mcomp.h 7.21 KB
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/*
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 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
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 *
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 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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 */

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#ifndef AV1_ENCODER_MCOMP_H_
#define AV1_ENCODER_MCOMP_H_
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#include "av1/encoder/block.h"
#include "aom_dsp/variance.h"
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#ifdef __cplusplus
extern "C" {
#endif

// The maximum number of steps in a step search given the largest
// allowed initial step
#define MAX_MVSEARCH_STEPS 11
// Max full pel mv specified in the unit of full pixel
// Enable the use of motion vector in range [-1023, 1023].
#define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS - 1)) - 1)
// 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
// for Block_16x16
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#define BORDER_MV_PIXELS_B16 (16 + AOM_INTERP_EXTEND)
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// motion search site
typedef struct search_site {
  MV mv;
  int offset;
} search_site;

typedef struct search_site_config {
  search_site ss[8 * MAX_MVSEARCH_STEPS + 1];
  int ss_count;
  int searches_per_step;
} search_site_config;

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void av1_init_dsmotion_compensation(search_site_config *cfg, int stride);
void av1_init3smotion_compensation(search_site_config *cfg, int stride);
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void av1_set_mv_search_range(MACROBLOCK *x, const MV *mv);
int av1_mv_bit_cost(const MV *mv, const MV *ref, const int *mvjcost,
                    int *mvcost[2], int weight);
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// Utility to compute variance + MV rate cost for a given MV
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int av1_get_mvpred_var(const MACROBLOCK *x, const MV *best_mv,
                       const MV *center_mv, const aom_variance_fn_ptr_t *vfp,
                       int use_mvcost);
int av1_get_mvpred_av_var(const MACROBLOCK *x, const MV *best_mv,
                          const MV *center_mv, const uint8_t *second_pred,
                          const aom_variance_fn_ptr_t *vfp, int use_mvcost);

struct AV1_COMP;
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struct SPEED_FEATURES;

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int av1_init_search_range(int size);
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int av1_refining_search_sad(struct macroblock *x, struct mv *ref_mv,
                            int sad_per_bit, int distance,
                            const aom_variance_fn_ptr_t *fn_ptr,
                            const struct mv *center_mv);
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// Runs sequence of diamond searches in smaller steps for RD.
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int av1_full_pixel_diamond(const struct AV1_COMP *cpi, MACROBLOCK *x,
                           MV *mvp_full, int step_param, int sadpb,
                           int further_steps, int do_refine, int *cost_list,
                           const aom_variance_fn_ptr_t *fn_ptr,
                           const MV *ref_mv, MV *dst_mv);
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// Perform integral projection based motion estimation.
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unsigned int av1_int_pro_motion_estimation(const struct AV1_COMP *cpi,
                                           MACROBLOCK *x, BLOCK_SIZE bsize,
                                           int mi_row, int mi_col);
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int av1_hex_search(MACROBLOCK *x, MV *start_mv, int search_param,
                   int sad_per_bit, int do_init_search, int *cost_list,
                   const aom_variance_fn_ptr_t *vfp, int use_mvcost,
                   const MV *center_mv);
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typedef int(fractional_mv_step_fp)(
    MACROBLOCK *x, const MV *ref_mv, int allow_hp, int error_per_bit,
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    const aom_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, int *cost_list, int *mvjcost, int *mvcost[2],
    int *distortion, unsigned int *sse1, const uint8_t *second_pred, int w,
    int h, int use_upsampled_ref);
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extern fractional_mv_step_fp av1_find_best_sub_pixel_tree;
extern fractional_mv_step_fp av1_find_best_sub_pixel_tree_pruned;
extern fractional_mv_step_fp av1_find_best_sub_pixel_tree_pruned_more;
extern fractional_mv_step_fp av1_find_best_sub_pixel_tree_pruned_evenmore;
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typedef int (*av1_full_search_fn_t)(const MACROBLOCK *x, const MV *ref_mv,
                                    int sad_per_bit, int distance,
                                    const aom_variance_fn_ptr_t *fn_ptr,
                                    const MV *center_mv, MV *best_mv);
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typedef int (*av1_diamond_search_fn_t)(
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    MACROBLOCK *x, const search_site_config *cfg, MV *ref_mv, MV *best_mv,
    int search_param, int sad_per_bit, int *num00,
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    const aom_variance_fn_ptr_t *fn_ptr, const MV *center_mv);
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int av1_refining_search_8p_c(MACROBLOCK *x, int error_per_bit, int search_range,
                             const aom_variance_fn_ptr_t *fn_ptr,
                             const MV *center_mv, const uint8_t *second_pred);
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struct AV1_COMP;
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int av1_full_pixel_search(struct AV1_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize,
                          MV *mvp_full, int step_param, int error_per_bit,
                          int *cost_list, const MV *ref_mv, int var_max,
                          int rd);
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#if CONFIG_EXT_INTER
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int av1_find_best_masked_sub_pixel_tree(
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    const MACROBLOCK *x, const uint8_t *mask, int mask_stride, MV *bestmv,
    const MV *ref_mv, int allow_hp, int error_per_bit,
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    const aom_variance_fn_ptr_t *vfp, int forced_stop, int iters_per_step,
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    int *mvjcost, int *mvcost[2], int *distortion, unsigned int *sse1,
    int is_second);
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int av1_find_best_masked_sub_pixel_tree_up(
    struct AV1_COMP *cpi, MACROBLOCK *x, const uint8_t *mask, int mask_stride,
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    int mi_row, int mi_col, MV *bestmv, const MV *ref_mv, int allow_hp,
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    int error_per_bit, const aom_variance_fn_ptr_t *vfp, int forced_stop,
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    int iters_per_step, int *mvjcost, int *mvcost[2], int *distortion,
    unsigned int *sse1, int is_second, int use_upsampled_ref);
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int av1_masked_full_pixel_diamond(const struct AV1_COMP *cpi, MACROBLOCK *x,
                                  const uint8_t *mask, int mask_stride,
                                  MV *mvp_full, int step_param, int sadpb,
                                  int further_steps, int do_refine,
                                  const aom_variance_fn_ptr_t *fn_ptr,
                                  const MV *ref_mv, MV *dst_mv, int is_second);
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#endif  // CONFIG_EXT_INTER
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#if CONFIG_OBMC
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int av1_obmc_full_pixel_diamond(const struct AV1_COMP *cpi, MACROBLOCK *x,
                                const int32_t *wsrc, const int32_t *mask,
                                MV *mvp_full, int step_param, int sadpb,
                                int further_steps, int do_refine,
                                const aom_variance_fn_ptr_t *fn_ptr,
                                const MV *ref_mv, MV *dst_mv, int is_second);
int av1_find_best_obmc_sub_pixel_tree_up(
    struct AV1_COMP *cpi, MACROBLOCK *x, const int32_t *wsrc,
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    const int32_t *mask, int mi_row, int mi_col, MV *bestmv, const MV *ref_mv,
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    int allow_hp, int error_per_bit, const aom_variance_fn_ptr_t *vfp,
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    int forced_stop, int iters_per_step, int *mvjcost, int *mvcost[2],
    int *distortion, unsigned int *sse1, int is_second, int use_upsampled_ref);
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#endif  // CONFIG_OBMC
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#ifdef __cplusplus
}  // extern "C"
#endif

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#endif  // AV1_ENCODER_MCOMP_H_