vp9_mcomp.h 5.35 KB
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/*
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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
 *  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_
#define VP9_ENCODER_VP9_MCOMP_H_
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#include "vp9/encoder/vp9_block.h"
#include "vp9/encoder/vp9_variance.h"
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// The maximum number of steps in a step search given the largest
// 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
// Enable the use of motion vector in range [-1023, 1023].
#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
#define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS-1))
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// Allowed motion vector pixel distance outside image border
// for Block_16x16
#define BORDER_MV_PIXELS_B16 (16 + VP9_INTERP_EXTEND)

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void vp9_clamp_mv_min_max(MACROBLOCK *x, MV *mv);
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int vp9_mv_bit_cost(const MV *mv, const MV *ref,
                    const int *mvjcost, int *mvcost[2], int weight);
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void vp9_init_dsmotion_compensation(MACROBLOCK *x, int stride);
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);

// 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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                   MV *ref_mv,
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                   int search_param,
                   int error_per_bit,
                   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,
                   MV *best_mv);
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int vp9_bigdia_search(MACROBLOCK *x,
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                      MV *ref_mv,
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                      int search_param,
                      int error_per_bit,
                      int do_init_search,
                      const vp9_variance_fn_ptr_t *vf,
                      int use_mvcost,
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                      const MV *center_mv,
                      MV *best_mv);
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int vp9_square_search(MACROBLOCK *x,
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                      MV *ref_mv,
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                      int search_param,
                      int error_per_bit,
                      int do_init_search,
                      const vp9_variance_fn_ptr_t *vf,
                      int use_mvcost,
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                      const MV *center_mv,
                      MV *best_mv);
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typedef int (fractional_mv_step_fp) (
    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,
    const vp9_variance_fn_ptr_t *vfp,
    int forced_stop,  // 0 - full, 1 - qtr only, 2 - half only
    int iters_per_step,
    int *mvjcost,
    int *mvcost[2],
    int *distortion,
    unsigned int *sse);
extern fractional_mv_step_fp vp9_find_best_sub_pixel_iterative;
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extern fractional_mv_step_fp vp9_find_best_sub_pixel_tree;

typedef int (fractional_mv_step_comp_fp) (
    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,
    const vp9_variance_fn_ptr_t *vfp,
    int forced_stop,  // 0 - full, 1 - qtr only, 2 - half only
    int iters_per_step,
    int *mvjcost, int *mvcost[2],
    int *distortion, unsigned int *sse1,
    const uint8_t *second_pred,
    int w, int h);
extern fractional_mv_step_comp_fp vp9_find_best_sub_pixel_comp_iterative;
extern fractional_mv_step_comp_fp vp9_find_best_sub_pixel_comp_tree;
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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,
                                    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,
                                        int distance,
                                        vp9_variance_fn_ptr_t *fn_ptr,
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                                        int *mvjcost, int *mvcost[2],
                                        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,
                                       int search_param, int sad_per_bit,
                                       int *num00,
                                       vp9_variance_fn_ptr_t *fn_ptr,
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                                       int *mvjcost, int *mvcost[2],
                                       int_mv *center_mv);
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int vp9_refining_search_8p_c(MACROBLOCK *x,
                             int_mv *ref_mv, int error_per_bit,
                             int search_range, vp9_variance_fn_ptr_t *fn_ptr,
                             int *mvjcost, int *mvcost[2],
                             int_mv *center_mv, const uint8_t *second_pred,
                             int w, int h);
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#endif  // VP9_ENCODER_VP9_MCOMP_H_