vp9/encoder/vp9_context_tree.h

   1 /*
   2  *  Copyright (c) 2014 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_ENCODER_VP9_CONTEXT_TREE_H_
  12 #define VP9_ENCODER_VP9_CONTEXT_TREE_H_
  13
  14 #include "vp9/common/vp9_blockd.h"
  15 #include "vp9/encoder/vp9_block.h"
  16
  17 struct VP9_COMP;
  18 struct VP9Common;
  19 struct ThreadData;
  20
  21 // Structure to hold snapshot of coding context during the mode picking process
  22 typedef struct {
  23   MODE_INFO mic;
  24   MB_MODE_INFO_EXT mbmi_ext;
  25   uint8_t *zcoeff_blk;
  26   tran_low_t *coeff[MAX_MB_PLANE][3];
  27   tran_low_t *qcoeff[MAX_MB_PLANE][3];
  28   tran_low_t *dqcoeff[MAX_MB_PLANE][3];
  29   uint16_t *eobs[MAX_MB_PLANE][3];
  30
  31   // dual buffer pointers, 0: in use, 1: best in store
  32   tran_low_t *coeff_pbuf[MAX_MB_PLANE][3];
  33   tran_low_t *qcoeff_pbuf[MAX_MB_PLANE][3];
  34   tran_low_t *dqcoeff_pbuf[MAX_MB_PLANE][3];
  35   uint16_t *eobs_pbuf[MAX_MB_PLANE][3];
  36
  37   int is_coded;
  38   int num_4x4_blk;
  39   int skip;
  40   int pred_pixel_ready;
  41   // For current partition, only if all Y, U, and V transform blocks'
  42   // coefficients are quantized to 0, skippable is set to 0.
  43   int skippable;
  44   uint8_t skip_txfm[MAX_MB_PLANE << 2];
  45   int best_mode_index;
  46   int hybrid_pred_diff;
  47   int comp_pred_diff;
  48   int single_pred_diff;
  49   int64_t tx_rd_diff[TX_MODES];
  50   int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
  51
  52   // TODO(jingning) Use RD_COST struct here instead. This involves a boarder
  53   // scope of refactoring.
  54   int rate;
  55   int64_t dist;
  56
  57 #if CONFIG_VP9_TEMPORAL_DENOISING
  58   unsigned int newmv_sse;
  59   unsigned int zeromv_sse;
  60   PREDICTION_MODE best_sse_inter_mode;
  61   int_mv best_sse_mv;
  62   MV_REFERENCE_FRAME best_reference_frame;
  63   MV_REFERENCE_FRAME best_zeromv_reference_frame;
  64 #endif
  65
  66   // motion vector cache for adaptive motion search control in partition
  67   // search loop
  68   MV pred_mv[MAX_REF_FRAMES];
  69   INTERP_FILTER pred_interp_filter;
  70 } PICK_MODE_CONTEXT;
  71
  72 typedef struct PC_TREE {
  73   int index;
  74   PARTITION_TYPE partitioning;
  75   BLOCK_SIZE block_size;
  76   PICK_MODE_CONTEXT none;
  77   PICK_MODE_CONTEXT horizontal[2];
  78   PICK_MODE_CONTEXT vertical[2];
  79   union {
  80     struct PC_TREE *split[4];
  81     PICK_MODE_CONTEXT *leaf_split[4];
  82   };
  83 } PC_TREE;
  84
  85 void vp9_setup_pc_tree(struct VP9Common *cm, struct ThreadData *td);
  86 void vp9_free_pc_tree(struct ThreadData *td);
  87
  88 #endif /* VP9_ENCODER_VP9_CONTEXT_TREE_H_ */