block.h 4.93 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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 */


#ifndef __INC_BLOCK_H
#define __INC_BLOCK_H

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#include "vp8/common/onyx.h"
#include "vp8/common/entropymv.h"
#include "vp8/common/entropy.h"
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#include "vpx_ports/mem.h"
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#include "vp8/common/onyxc_int.h"
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// motion search site
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typedef struct {
  MV mv;
  int offset;
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} search_site;

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typedef struct block {
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  // 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries
  short *src_diff;
  short *coeff;

  // 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries
  short *quant;
  short *quant_fast;      // fast quant deprecated for now
  unsigned char *quant_shift;
  short *zbin;
  short *zbin_8x8;
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  short *zbin_16x16;
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  short *zrun_zbin_boost;
  short *zrun_zbin_boost_8x8;
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  short *zrun_zbin_boost_16x16;
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  short *round;

  // Zbin Over Quant value
  short zbin_extra;

  unsigned char **base_src;
  unsigned char **base_second_src;
  int src;
  int src_stride;

  int eob_max_offset;
  int eob_max_offset_8x8;
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  int eob_max_offset_16x16;
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} BLOCK;

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typedef struct {
  int count;
  struct {
    B_PREDICTION_MODE mode;
    int_mv mv;
    int_mv second_mv;
  } bmi[16];
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} PARTITION_INFO;

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// Structure to hold snapshot of coding context during the mode picking process
// TODO Do we need all of these?
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typedef struct {
  MODE_INFO mic;
  PARTITION_INFO partition_info;
  int_mv best_ref_mv;
  int_mv second_best_ref_mv;
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#if CONFIG_NEWBESTREFMV || CONFIG_NEW_MVREF
  int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REFS];
#endif
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  int rate;
  int distortion;
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  int64_t intra_error;
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  int best_mode_index;
  int rddiv;
  int rdmult;
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  int hybrid_pred_diff;
  int comp_pred_diff;
  int single_pred_diff;
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  int64_t txfm_rd_diff[NB_TXFM_MODES];
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} PICK_MODE_CONTEXT;

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typedef struct macroblock {
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  DECLARE_ALIGNED(16, short, src_diff[400]);  // 16x16 Y 8x8 U 8x8 V 4x4 2nd Y
  DECLARE_ALIGNED(16, short, coeff[400]);     // 16x16 Y 8x8 U 8x8 V 4x4 2nd Y
  DECLARE_ALIGNED(16, unsigned char, thismb[256]);    // 16x16 Y

  unsigned char *thismb_ptr;
  // 16 Y blocks, 4 U blocks, 4 V blocks,
  // 1 DC 2nd order block each with 16 entries
  BLOCK block[25];

  YV12_BUFFER_CONFIG src;

  MACROBLOCKD e_mbd;
  PARTITION_INFO *partition_info; /* work pointer */
  PARTITION_INFO *pi;   /* Corresponds to upper left visible macroblock */
  PARTITION_INFO *pip;  /* Base of allocated array */

  search_site *ss;
  int ss_count;
  int searches_per_step;

  int errorperbit;
  int sadperbit16;
  int sadperbit4;
  int rddiv;
  int rdmult;
  unsigned int *mb_activity_ptr;
  int *mb_norm_activity_ptr;
  signed int act_zbin_adj;

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  int nmvjointcost[MV_JOINTS];
  int nmvcosts[2][MV_VALS];
  int *nmvcost[2];
  int nmvcosts_hp[2][MV_VALS];
  int *nmvcost_hp[2];

  int nmvjointsadcost[MV_JOINTS];
  int nmvsadcosts[2][MV_VALS];
  int *nmvsadcost[2];
  int nmvsadcosts_hp[2][MV_VALS];
  int *nmvsadcost_hp[2];
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  int mbmode_cost[2][MB_MODE_COUNT];
  int intra_uv_mode_cost[2][MB_MODE_COUNT];
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  int bmode_costs[VP9_BINTRAMODES][VP9_BINTRAMODES][VP9_BINTRAMODES];
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  int i8x8_mode_costs[MB_MODE_COUNT];
  int inter_bmode_costs[B_MODE_COUNT];
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  int switchable_interp_costs[VP9_SWITCHABLE_FILTERS + 1]
                             [VP9_SWITCHABLE_FILTERS];
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  // These define limits to motion vector components to prevent them
  // from extending outside the UMV borders
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  int mv_col_min;
  int mv_col_max;
  int mv_row_min;
  int mv_row_max;
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  int skip;
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  int encode_breakout;
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  // char * gf_active_ptr;
  signed char *gf_active_ptr;
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  unsigned char *active_ptr;
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  unsigned int token_costs[TX_SIZE_MAX][BLOCK_TYPES][COEF_BANDS]
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    [PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS];
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  unsigned int hybrid_token_costs[TX_SIZE_MAX][BLOCK_TYPES][COEF_BANDS]
    [PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS];
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  int optimize;
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  // Structure to hold context for each of the 4 MBs within a SB:
  // when encoded as 4 independent MBs:
  PICK_MODE_CONTEXT mb_context[4];
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#if CONFIG_SUPERBLOCKS
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  // when 4 MBs share coding parameters:
  PICK_MODE_CONTEXT sb_context[4];
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#endif

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  void (*vp9_short_fdct4x4)(short *input, short *output, int pitch);
  void (*vp9_short_fdct8x4)(short *input, short *output, int pitch);
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  void (*short_walsh4x4)(short *input, short *output, int pitch);
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  void (*quantize_b_4x4)(BLOCK *b, BLOCKD *d);
  void (*quantize_b_4x4_pair)(BLOCK *b1, BLOCK *b2, BLOCKD *d0, BLOCKD *d1);
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  void (*vp9_short_fdct8x8)(short *input, short *output, int pitch);
  void (*vp9_short_fdct16x16)(short *input, short *output, int pitch);
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  void (*short_fhaar2x2)(short *input, short *output, int pitch);
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  void (*quantize_b_16x16)(BLOCK *b, BLOCKD *d);
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  void (*quantize_b_8x8)(BLOCK *b, BLOCKD *d);
  void (*quantize_b_2x2)(BLOCK *b, BLOCKD *d);
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} MACROBLOCK;


#endif