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      1 /*
      2  *  Copyright (c) 2012 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 #ifndef VP9_COMMON_VP9_PRED_COMMON_H_
     12 #define VP9_COMMON_VP9_PRED_COMMON_H_
     13 
     14 #include "vp9/common/vp9_blockd.h"
     15 #include "vp9/common/vp9_onyxc_int.h"
     16 
     17 int vp9_get_segment_id(VP9_COMMON *cm, const uint8_t *segment_ids,
     18                        BLOCK_SIZE bsize, int mi_row, int mi_col);
     19 
     20 
     21 static INLINE int vp9_get_pred_context_seg_id(const MACROBLOCKD *xd) {
     22   const MODE_INFO * const above_mi = xd->mi_8x8[-xd->mode_info_stride];
     23   const MODE_INFO * const left_mi = xd->mi_8x8[-1];
     24   const int above_sip = above_mi ? above_mi->mbmi.seg_id_predicted : 0;
     25   const int left_sip = left_mi ? left_mi->mbmi.seg_id_predicted : 0;
     26 
     27   return above_sip + (xd->left_available ? left_sip : 0);
     28 }
     29 
     30 static INLINE vp9_prob vp9_get_pred_prob_seg_id(struct segmentation *seg,
     31                                                 const MACROBLOCKD *xd) {
     32   return seg->pred_probs[vp9_get_pred_context_seg_id(xd)];
     33 }
     34 
     35 void vp9_set_pred_flag_seg_id(MACROBLOCKD *xd, uint8_t pred_flag);
     36 
     37 static INLINE int vp9_get_pred_context_mbskip(const MACROBLOCKD *xd) {
     38   const MODE_INFO * const above_mi = xd->mi_8x8[-xd->mode_info_stride];
     39   const MODE_INFO * const left_mi = xd->mi_8x8[-1];
     40   const int above_skip_coeff = above_mi ? above_mi->mbmi.skip_coeff : 0;
     41   const int left_skip_coeff = left_mi ? left_mi->mbmi.skip_coeff : 0;
     42 
     43   return above_skip_coeff + (xd->left_available ? left_skip_coeff : 0);
     44 }
     45 
     46 static INLINE vp9_prob vp9_get_pred_prob_mbskip(const VP9_COMMON *cm,
     47                                                 const MACROBLOCKD *xd) {
     48   return cm->fc.mbskip_probs[vp9_get_pred_context_mbskip(xd)];
     49 }
     50 
     51 static INLINE unsigned char vp9_get_pred_flag_mbskip(const MACROBLOCKD *xd) {
     52   return xd->this_mi->mbmi.skip_coeff;
     53 }
     54 
     55 void vp9_set_pred_flag_mbskip(MACROBLOCKD *xd, BLOCK_SIZE bsize,
     56                               uint8_t pred_flag);
     57 
     58 unsigned char vp9_get_pred_context_switchable_interp(const MACROBLOCKD *xd);
     59 
     60 unsigned char vp9_get_pred_context_intra_inter(const MACROBLOCKD *xd);
     61 
     62 static INLINE vp9_prob vp9_get_pred_prob_intra_inter(const VP9_COMMON *cm,
     63                                                      const MACROBLOCKD *xd) {
     64   const int pred_context = vp9_get_pred_context_intra_inter(xd);
     65   return cm->fc.intra_inter_prob[pred_context];
     66 }
     67 
     68 unsigned char vp9_get_pred_context_comp_inter_inter(const VP9_COMMON *cm,
     69                                                     const MACROBLOCKD *xd);
     70 
     71 
     72 static INLINE vp9_prob vp9_get_pred_prob_comp_inter_inter(const VP9_COMMON *cm,
     73                                                           const MACROBLOCKD *xd) {
     74   const int pred_context = vp9_get_pred_context_comp_inter_inter(cm, xd);
     75   return cm->fc.comp_inter_prob[pred_context];
     76 }
     77 
     78 unsigned char vp9_get_pred_context_comp_ref_p(const VP9_COMMON *cm,
     79                                               const MACROBLOCKD *xd);
     80 
     81 static INLINE vp9_prob vp9_get_pred_prob_comp_ref_p(const VP9_COMMON *cm,
     82                                                     const MACROBLOCKD *xd) {
     83   const int pred_context = vp9_get_pred_context_comp_ref_p(cm, xd);
     84   return cm->fc.comp_ref_prob[pred_context];
     85 }
     86 
     87 unsigned char vp9_get_pred_context_single_ref_p1(const MACROBLOCKD *xd);
     88 
     89 static INLINE vp9_prob vp9_get_pred_prob_single_ref_p1(const VP9_COMMON *cm,
     90                                                        const MACROBLOCKD *xd) {
     91   const int pred_context = vp9_get_pred_context_single_ref_p1(xd);
     92   return cm->fc.single_ref_prob[pred_context][0];
     93 }
     94 
     95 unsigned char vp9_get_pred_context_single_ref_p2(const MACROBLOCKD *xd);
     96 
     97 static INLINE vp9_prob vp9_get_pred_prob_single_ref_p2(const VP9_COMMON *cm,
     98                                                        const MACROBLOCKD *xd) {
     99   const int pred_context = vp9_get_pred_context_single_ref_p2(xd);
    100   return cm->fc.single_ref_prob[pred_context][1];
    101 }
    102 
    103 unsigned char vp9_get_pred_context_tx_size(const MACROBLOCKD *xd);
    104 
    105 static const vp9_prob *get_tx_probs(BLOCK_SIZE bsize, uint8_t context,
    106                                     const struct tx_probs *tx_probs) {
    107   if (bsize < BLOCK_16X16)
    108     return tx_probs->p8x8[context];
    109   else if (bsize < BLOCK_32X32)
    110     return tx_probs->p16x16[context];
    111   else
    112     return tx_probs->p32x32[context];
    113 }
    114 
    115 static const vp9_prob *get_tx_probs2(const MACROBLOCKD *xd,
    116                                      const struct tx_probs *tx_probs,
    117                                      const MODE_INFO *m) {
    118   const BLOCK_SIZE bsize = m->mbmi.sb_type;
    119   const int context = vp9_get_pred_context_tx_size(xd);
    120   return get_tx_probs(bsize, context, tx_probs);
    121 }
    122 
    123 static void update_tx_counts(BLOCK_SIZE bsize, uint8_t context,
    124                              TX_SIZE tx_size, struct tx_counts *tx_counts) {
    125   if (bsize >= BLOCK_32X32)
    126     tx_counts->p32x32[context][tx_size]++;
    127   else if (bsize >= BLOCK_16X16)
    128     tx_counts->p16x16[context][tx_size]++;
    129   else
    130     tx_counts->p8x8[context][tx_size]++;
    131 }
    132 
    133 #endif  // VP9_COMMON_VP9_PRED_COMMON_H_
    134