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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_RDOPT_H_
     13 #define VP8_ENCODER_RDOPT_H_
     14 
     15 #ifdef __cplusplus
     16 extern "C" {
     17 #endif
     18 
     19 #define RDCOST(RM,DM,R,D) ( ((128+(R)*(RM)) >> 8) + (DM)*(D) )
     20 
     21 static void insertsortmv(int arr[], int len)
     22 {
     23     int i, j, k;
     24 
     25     for ( i = 1 ; i <= len-1 ; i++ )
     26     {
     27         for ( j = 0 ; j < i ; j++ )
     28         {
     29             if ( arr[j] > arr[i] )
     30             {
     31                 int temp;
     32 
     33                 temp = arr[i];
     34 
     35                 for ( k = i; k >j; k--)
     36                     arr[k] = arr[k - 1] ;
     37 
     38                 arr[j] = temp ;
     39             }
     40         }
     41     }
     42 }
     43 
     44 static void insertsortsad(int arr[],int idx[], int len)
     45 {
     46     int i, j, k;
     47 
     48     for ( i = 1 ; i <= len-1 ; i++ )
     49     {
     50         for ( j = 0 ; j < i ; j++ )
     51         {
     52             if ( arr[j] > arr[i] )
     53             {
     54                 int temp, tempi;
     55 
     56                 temp = arr[i];
     57                 tempi = idx[i];
     58 
     59                 for ( k = i; k >j; k--)
     60                 {
     61                     arr[k] = arr[k - 1] ;
     62                     idx[k] = idx[k - 1];
     63                 }
     64 
     65                 arr[j] = temp ;
     66                 idx[j] = tempi;
     67             }
     68         }
     69     }
     70 }
     71 
     72 extern void vp8_initialize_rd_consts(VP8_COMP *cpi, MACROBLOCK *x, int Qvalue);
     73 extern void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra);
     74 extern void vp8_rd_pick_intra_mode(MACROBLOCK *x, int *rate);
     75 
     76 
     77 static void get_plane_pointers(const YV12_BUFFER_CONFIG *fb,
     78                                unsigned char            *plane[3],
     79                                unsigned int              recon_yoffset,
     80                                unsigned int              recon_uvoffset)
     81 {
     82     plane[0] = fb->y_buffer + recon_yoffset;
     83     plane[1] = fb->u_buffer + recon_uvoffset;
     84     plane[2] = fb->v_buffer + recon_uvoffset;
     85 }
     86 
     87 
     88 static void get_predictor_pointers(const VP8_COMP *cpi,
     89                                        unsigned char  *plane[4][3],
     90                                        unsigned int    recon_yoffset,
     91                                        unsigned int    recon_uvoffset)
     92 {
     93     if (cpi->ref_frame_flags & VP8_LAST_FRAME)
     94         get_plane_pointers(&cpi->common.yv12_fb[cpi->common.lst_fb_idx],
     95                            plane[LAST_FRAME], recon_yoffset, recon_uvoffset);
     96 
     97     if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
     98         get_plane_pointers(&cpi->common.yv12_fb[cpi->common.gld_fb_idx],
     99                            plane[GOLDEN_FRAME], recon_yoffset, recon_uvoffset);
    100 
    101     if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
    102         get_plane_pointers(&cpi->common.yv12_fb[cpi->common.alt_fb_idx],
    103                            plane[ALTREF_FRAME], recon_yoffset, recon_uvoffset);
    104 }
    105 
    106 
    107 static void get_reference_search_order(const VP8_COMP *cpi,
    108                                            int             ref_frame_map[4])
    109 {
    110     int i=0;
    111 
    112     ref_frame_map[i++] = INTRA_FRAME;
    113     if (cpi->ref_frame_flags & VP8_LAST_FRAME)
    114         ref_frame_map[i++] = LAST_FRAME;
    115     if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
    116         ref_frame_map[i++] = GOLDEN_FRAME;
    117     if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
    118         ref_frame_map[i++] = ALTREF_FRAME;
    119     for(; i<4; i++)
    120         ref_frame_map[i] = -1;
    121 }
    122 
    123 
    124 extern void vp8_mv_pred
    125 (
    126     VP8_COMP *cpi,
    127     MACROBLOCKD *xd,
    128     const MODE_INFO *here,
    129     int_mv *mvp,
    130     int refframe,
    131     int *ref_frame_sign_bias,
    132     int *sr,
    133     int near_sadidx[]
    134 );
    135 void vp8_cal_sad(VP8_COMP *cpi, MACROBLOCKD *xd, MACROBLOCK *x, int recon_yoffset, int near_sadidx[]);
    136 
    137 #ifdef __cplusplus
    138 }  // extern "C"
    139 #endif
    140 
    141 #endif  // VP8_ENCODER_RDOPT_H_
    142