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      1 /*
      2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 
     12 #ifndef VP8_ENCODER_MCOMP_H_
     13 #define VP8_ENCODER_MCOMP_H_
     14 
     15 #include "block.h"
     16 #include "vp8/common/variance.h"
     17 
     18 #ifdef __cplusplus
     19 extern "C" {
     20 #endif
     21 
     22 #ifdef VP8_ENTROPY_STATS
     23 extern void init_mv_ref_counts();
     24 extern void accum_mv_refs(MB_PREDICTION_MODE, const int near_mv_ref_cts[4]);
     25 #endif
     26 
     27 
     28 /* The maximum number of steps in a step search given the largest allowed
     29  * initial step
     30  */
     31 #define MAX_MVSEARCH_STEPS 8
     32 
     33 /* Max full pel mv specified in 1 pel units */
     34 #define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS)) - 1)
     35 
     36 /* Maximum size of the first step in full pel units */
     37 #define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS-1))
     38 
     39 extern void print_mode_context(void);
     40 extern int vp8_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int Weight);
     41 extern void vp8_init_dsmotion_compensation(MACROBLOCK *x, int stride);
     42 extern void vp8_init3smotion_compensation(MACROBLOCK *x,  int stride);
     43 
     44 
     45 extern int vp8_hex_search
     46 (
     47     MACROBLOCK *x,
     48     BLOCK *b,
     49     BLOCKD *d,
     50     int_mv *ref_mv,
     51     int_mv *best_mv,
     52     int search_param,
     53     int error_per_bit,
     54     const vp8_variance_fn_ptr_t *vf,
     55     int *mvsadcost[2],
     56     int *mvcost[2],
     57     int_mv *center_mv
     58 );
     59 
     60 typedef int (fractional_mv_step_fp)
     61     (MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *bestmv, int_mv *ref_mv,
     62      int error_per_bit, const vp8_variance_fn_ptr_t *vfp, int *mvcost[2],
     63      int *distortion, unsigned int *sse);
     64 
     65 extern fractional_mv_step_fp vp8_find_best_sub_pixel_step_iteratively;
     66 extern fractional_mv_step_fp vp8_find_best_sub_pixel_step;
     67 extern fractional_mv_step_fp vp8_find_best_half_pixel_step;
     68 extern fractional_mv_step_fp vp8_skip_fractional_mv_step;
     69 
     70 typedef int (*vp8_full_search_fn_t)
     71     (
     72      MACROBLOCK *x,
     73      BLOCK *b,
     74      BLOCKD *d,
     75      int_mv *ref_mv,
     76      int sad_per_bit,
     77      int distance,
     78      vp8_variance_fn_ptr_t *fn_ptr,
     79      int *mvcost[2],
     80      int_mv *center_mv
     81     );
     82 
     83 typedef int (*vp8_refining_search_fn_t)
     84     (
     85      MACROBLOCK *x,
     86      BLOCK *b,
     87      BLOCKD *d,
     88      int_mv *ref_mv,
     89      int sad_per_bit,
     90      int distance,
     91      vp8_variance_fn_ptr_t *fn_ptr,
     92      int *mvcost[2],
     93      int_mv *center_mv
     94     );
     95 
     96 typedef int (*vp8_diamond_search_fn_t)
     97     (
     98      MACROBLOCK *x,
     99      BLOCK *b,
    100      BLOCKD *d,
    101      int_mv *ref_mv,
    102      int_mv *best_mv,
    103      int search_param,
    104      int sad_per_bit,
    105      int *num00,
    106      vp8_variance_fn_ptr_t *fn_ptr,
    107      int *mvcost[2],
    108      int_mv *center_mv
    109     );
    110 
    111 #ifdef __cplusplus
    112 }  // extern "C"
    113 #endif
    114 
    115 #endif  // VP8_ENCODER_MCOMP_H_
    116