onyx_int.h 20.3 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_VP8_INT_H
#define __INC_VP8_INT_H

#include <stdio.h>
#include "vpx_ports/config.h"
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#include "vp8/common/onyx.h"
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#include "treewriter.h"
#include "tokenize.h"
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#include "vp8/common/onyxc_int.h"
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#include "variance.h"
#include "dct.h"
#include "encodemb.h"
#include "quantize.h"
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#include "vp8/common/entropy.h"
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#include "vp8/common/entropymode.h"
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#include "vpx_ports/mem.h"
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#include "vpx/internal/vpx_codec_internal.h"
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#include "mcomp.h"
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#include "temporal_filter.h"
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#include "vp8/common/findnearmv.h"
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#include "lookahead.h"
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// #define SPEEDSTATS 1
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#define MIN_GF_INTERVAL             4
#define DEFAULT_GF_INTERVAL         7

#define KEY_FRAME_CONTEXT 5

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#define MAX_LAG_BUFFERS 25
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#define AF_THRESH   25
#define AF_THRESH2  100
#define ARF_DECAY_THRESH 12
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#if CONFIG_PRED_FILTER
#define MAX_MODES 54
#else  // CONFIG_PRED_FILTER
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#define MAX_MODES 42
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#endif  // CONFIG_PRED_FILTER
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#define MIN_THRESHMULT  32
#define MAX_THRESHMULT  512

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#define GF_ZEROMV_ZBIN_BOOST 12
#define LF_ZEROMV_ZBIN_BOOST 6
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#define MV_ZBIN_BOOST        4
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#define ZBIN_OQ_MAX 192

#define VP8_TEMPORAL_ALT_REF 1

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typedef struct {
  MV_CONTEXT mvc[2];
  int mvcosts[2][MVvals + 1];
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#if CONFIG_HIGH_PRECISION_MV
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  MV_CONTEXT_HP mvc_hp[2];
  int mvcosts_hp[2][MVvals_hp + 1];
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#endif
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#ifdef MODE_STATS
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  // Stats
  int y_modes[VP8_YMODES];
  int uv_modes[VP8_UV_MODES];
  int i8x8_modes[VP8_I8X8_MODES];
  int b_modes[B_MODE_COUNT];
  int inter_y_modes[MB_MODE_COUNT];
  int inter_uv_modes[VP8_UV_MODES];
  int inter_b_modes[B_MODE_COUNT];
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#endif
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  vp8_prob segment_pred_probs[PREDICTION_PROBS];
  unsigned char ref_pred_probs_update[PREDICTION_PROBS];
  vp8_prob ref_pred_probs[PREDICTION_PROBS];
  vp8_prob prob_comppred[COMP_PRED_CONTEXTS];
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  unsigned char *last_frame_seg_map_copy;
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  // 0 = Intra, Last, GF, ARF
  signed char last_ref_lf_deltas[MAX_REF_LF_DELTAS];
  // 0 = BPRED, ZERO_MV, MV, SPLIT
  signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS];
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  vp8_prob coef_probs[BLOCK_TYPES]
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      [COEF_BANDS][PREV_COEF_CONTEXTS][ENTROPY_NODES];
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  vp8_prob coef_probs_8x8[BLOCK_TYPES_8X8]
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      [COEF_BANDS][PREV_COEF_CONTEXTS][ENTROPY_NODES];
#if CONFIG_TX16X16
  vp8_prob coef_probs_16x16[BLOCK_TYPES_16X16]
      [COEF_BANDS][PREV_COEF_CONTEXTS][ENTROPY_NODES];
#endif
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  vp8_prob ymode_prob [VP8_YMODES - 1]; /* interframe intra mode probs */
  vp8_prob uv_mode_prob [VP8_YMODES][VP8_UV_MODES - 1];
  vp8_prob bmode_prob [VP8_BINTRAMODES - 1];
  vp8_prob i8x8_mode_prob [VP8_I8X8_MODES - 1];
  vp8_prob sub_mv_ref_prob [SUBMVREF_COUNT][VP8_SUBMVREFS - 1];
  vp8_prob mbsplit_prob [VP8_NUMMBSPLITS - 1];
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#if CONFIG_SWITCHABLE_INTERP
  vp8_prob switchable_interp_prob[VP8_SWITCHABLE_FILTERS + 1]
                                 [VP8_SWITCHABLE_FILTERS - 1];
#endif

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  int mv_ref_ct[6][4][2];
  int mode_context[6][4];
  int mv_ref_ct_a[6][4][2];
  int mode_context_a[6][4];
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} CODING_CONTEXT;

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typedef struct {
  double frame;
  double intra_error;
  double coded_error;
  double sr_coded_error;
  double ssim_weighted_pred_err;
  double pcnt_inter;
  double pcnt_motion;
  double pcnt_second_ref;
  double pcnt_neutral;
  double MVr;
  double mvr_abs;
  double MVc;
  double mvc_abs;
  double MVrv;
  double MVcv;
  double mv_in_out_count;
  double new_mv_count;
  double duration;
  double count;
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}
FIRSTPASS_STATS;

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typedef struct {
  int frames_so_far;
  double frame_intra_error;
  double frame_coded_error;
  double frame_pcnt_inter;
  double frame_pcnt_motion;
  double frame_mvr;
  double frame_mvr_abs;
  double frame_mvc;
  double frame_mvc_abs;
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} ONEPASS_FRAMESTATS;

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typedef struct {
  struct {
    int err;
    union {
      int_mv mv;
      MB_PREDICTION_MODE mode;
    } m;
  } ref[MAX_REF_FRAMES];
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} MBGRAPH_MB_STATS;

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typedef struct {
  MBGRAPH_MB_STATS *mb_stats;
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} MBGRAPH_FRAME_STATS;
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#if CONFIG_PRED_FILTER
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typedef enum {
  THR_ZEROMV,
  THR_ZEROMV_FILT,
  THR_DC,

  THR_NEARESTMV,
  THR_NEARESTMV_FILT,
  THR_NEARMV,
  THR_NEARMV_FILT,

  THR_ZEROG,
  THR_ZEROG_FILT,
  THR_NEARESTG,
  THR_NEARESTG_FILT,

  THR_ZEROA,
  THR_ZEROA_FILT,
  THR_NEARESTA,
  THR_NEARESTA_FILT,

  THR_NEARG,
  THR_NEARG_FILT,
  THR_NEARA,
  THR_NEARA_FILT,

  THR_V_PRED,
  THR_H_PRED,
  THR_D45_PRED,
  THR_D135_PRED,
  THR_D117_PRED,
  THR_D153_PRED,
  THR_D27_PRED,
  THR_D63_PRED,
  THR_TM,
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  THR_NEWMV,
  THR_NEWMV_FILT,
  THR_NEWG,
  THR_NEWG_FILT,
  THR_NEWA,
  THR_NEWA_FILT,
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  THR_SPLITMV,
  THR_SPLITG,
  THR_SPLITA,
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  THR_B_PRED,
  THR_I8X8_PRED,
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  THR_COMP_ZEROLG,
  THR_COMP_NEARESTLG,
  THR_COMP_NEARLG,
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  THR_COMP_ZEROLA,
  THR_COMP_NEARESTLA,
  THR_COMP_NEARLA,
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  THR_COMP_ZEROGA,
  THR_COMP_NEARESTGA,
  THR_COMP_NEARGA,
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  THR_COMP_NEWLG,
  THR_COMP_NEWLA,
  THR_COMP_NEWGA,
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  THR_COMP_SPLITLG,
  THR_COMP_SPLITLA,
  THR_COMP_SPLITGA,
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}
THR_MODES;
#else
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typedef enum {
  THR_ZEROMV,
  THR_DC,
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  THR_NEARESTMV,
  THR_NEARMV,
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  THR_ZEROG,
  THR_NEARESTG,
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  THR_ZEROA,
  THR_NEARESTA,
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  THR_NEARG,
  THR_NEARA,
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  THR_V_PRED,
  THR_H_PRED,
  THR_D45_PRED,
  THR_D135_PRED,
  THR_D117_PRED,
  THR_D153_PRED,
  THR_D27_PRED,
  THR_D63_PRED,
  THR_TM,
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  THR_NEWMV,
  THR_NEWG,
  THR_NEWA,
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  THR_SPLITMV,
  THR_SPLITG,
  THR_SPLITA,
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  THR_B_PRED,
  THR_I8X8_PRED,
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  THR_COMP_ZEROLG,
  THR_COMP_NEARESTLG,
  THR_COMP_NEARLG,
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  THR_COMP_ZEROLA,
  THR_COMP_NEARESTLA,
  THR_COMP_NEARLA,
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  THR_COMP_ZEROGA,
  THR_COMP_NEARESTGA,
  THR_COMP_NEARGA,
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  THR_COMP_NEWLG,
  THR_COMP_NEWLA,
  THR_COMP_NEWGA,
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  THR_COMP_SPLITLG,
  THR_COMP_SPLITLA,
  THR_COMP_SPLITGA
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}
THR_MODES;
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#endif
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typedef enum {
  DIAMOND = 0,
  NSTEP = 1,
  HEX = 2
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} SEARCH_METHODS;

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typedef struct {
  int RD;
  SEARCH_METHODS search_method;
  int improved_dct;
  int auto_filter;
  int recode_loop;
  int iterative_sub_pixel;
  int half_pixel_search;
  int quarter_pixel_search;
  int thresh_mult[MAX_MODES];
  int max_step_search_steps;
  int first_step;
  int optimize_coefficients;
  int no_skip_block4x4_search;
  int improved_mv_pred;
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#if CONFIG_ENHANCED_INTERP
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  int search_best_filter;
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#endif
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} SPEED_FEATURES;

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typedef struct {
  MACROBLOCK  mb;
  int totalrate;
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} MB_ROW_COMP;

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typedef struct {
  TOKENEXTRA *start;
  TOKENEXTRA *stop;
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} TOKENLIST;

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typedef struct {
  int ithread;
  void *ptr1;
  void *ptr2;
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} ENCODETHREAD_DATA;
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typedef struct {
  int ithread;
  void *ptr1;
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} LPFTHREAD_DATA;


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typedef struct VP8_ENCODER_RTCD {
  VP8_COMMON_RTCD            *common;
  vp8_variance_rtcd_vtable_t  variance;
  vp8_fdct_rtcd_vtable_t      fdct;
  vp8_encodemb_rtcd_vtable_t  encodemb;
  vp8_search_rtcd_vtable_t    search;
  vp8_temporal_rtcd_vtable_t  temporal;
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} VP8_ENCODER_RTCD;

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enum {
  BLOCK_16X8,
  BLOCK_8X16,
  BLOCK_8X8,
  BLOCK_4X4,
  BLOCK_16X16,
  BLOCK_MAX_SEGMENTS
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};

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typedef struct VP8_COMP {
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  DECLARE_ALIGNED(16, short, Y1quant[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, unsigned char, Y1quant_shift[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, short, Y1zbin[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, short, Y1round[QINDEX_RANGE][16]);
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  DECLARE_ALIGNED(16, short, Y2quant[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, unsigned char, Y2quant_shift[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, short, Y2zbin[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, short, Y2round[QINDEX_RANGE][16]);
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  DECLARE_ALIGNED(16, short, UVquant[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, unsigned char, UVquant_shift[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, short, UVzbin[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, short, UVround[QINDEX_RANGE][16]);
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  DECLARE_ALIGNED(16, short, zrun_zbin_boost_y1[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, short, zrun_zbin_boost_y2[QINDEX_RANGE][16]);
  DECLARE_ALIGNED(16, short, zrun_zbin_boost_uv[QINDEX_RANGE][16]);
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  DECLARE_ALIGNED(64, short, Y1zbin_8x8[QINDEX_RANGE][64]);
  DECLARE_ALIGNED(64, short, Y2zbin_8x8[QINDEX_RANGE][64]);
  DECLARE_ALIGNED(64, short, UVzbin_8x8[QINDEX_RANGE][64]);
  DECLARE_ALIGNED(64, short, zrun_zbin_boost_y1_8x8[QINDEX_RANGE][64]);
  DECLARE_ALIGNED(64, short, zrun_zbin_boost_y2_8x8[QINDEX_RANGE][64]);
  DECLARE_ALIGNED(64, short, zrun_zbin_boost_uv_8x8[QINDEX_RANGE][64]);

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#if CONFIG_TX16X16
  DECLARE_ALIGNED(16, short, Y1zbin_16x16[QINDEX_RANGE][256]);
  DECLARE_ALIGNED(16, short, Y2zbin_16x16[QINDEX_RANGE][256]);
  DECLARE_ALIGNED(16, short, UVzbin_16x16[QINDEX_RANGE][256]);
  DECLARE_ALIGNED(16, short, zrun_zbin_boost_y1_16x16[QINDEX_RANGE][256]);
  DECLARE_ALIGNED(16, short, zrun_zbin_boost_y2_16x16[QINDEX_RANGE][256]);
  DECLARE_ALIGNED(16, short, zrun_zbin_boost_uv_16x16[QINDEX_RANGE][256]);
#endif

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  MACROBLOCK mb;
  VP8_COMMON common;
  vp8_writer bc, bc2;
  // bool_writer *bc2;

  VP8_CONFIG oxcf;

  struct lookahead_ctx    *lookahead;
  struct lookahead_entry  *source;
  struct lookahead_entry  *alt_ref_source;
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  YV12_BUFFER_CONFIG *Source;
  YV12_BUFFER_CONFIG *un_scaled_source;
  YV12_BUFFER_CONFIG scaled_source;
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  int source_alt_ref_pending; // frame in src_buffers has been identified to be encoded as an alt ref
  int source_alt_ref_active;  // an alt ref frame has been encoded and is usable
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  int is_src_frame_alt_ref;   // source of frame to encode is an exact copy of an alt ref frame
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  int gold_is_last; // golden frame same as last frame ( short circuit gold searches)
  int alt_is_last;  // Alt reference frame same as last ( short circuit altref search)
  int gold_is_alt;  // don't do both alt and gold search ( just do gold).
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  // int refresh_alt_ref_frame;
  YV12_BUFFER_CONFIG last_frame_uf;
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  TOKENEXTRA *tok;
  unsigned int tok_count;
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  unsigned int frames_since_key;
  unsigned int key_frame_frequency;
  unsigned int this_key_frame_forced;
  unsigned int next_key_frame_forced;
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  // Ambient reconstruction err target for force key frames
  int ambient_err;
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  unsigned int mode_check_freq[MAX_MODES];
  unsigned int mode_test_hit_counts[MAX_MODES];
  unsigned int mode_chosen_counts[MAX_MODES];
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  int rd_thresh_mult[MAX_MODES];
  int rd_baseline_thresh[MAX_MODES];
  int rd_threshes[MAX_MODES];
  int64_t rd_single_diff, rd_comp_diff, rd_hybrid_diff;
  int rd_prediction_type_threshes[4][NB_PREDICTION_TYPES];
  int comp_pred_count[COMP_PRED_CONTEXTS];
  int single_pred_count[COMP_PRED_CONTEXTS];
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  int RDMULT;
  int RDDIV;
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  CODING_CONTEXT coding_context;
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  // Rate targetting variables
  int64_t prediction_error;
  int64_t last_prediction_error;
  int64_t intra_error;
  int64_t last_intra_error;
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  int this_frame_target;
  int projected_frame_size;
  int last_q[2];                   // Separate values for Intra/Inter
  int last_boosted_qindex;         // Last boosted GF/KF/ARF q
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  double rate_correction_factor;
  double key_frame_rate_correction_factor;
  double gf_rate_correction_factor;
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  int frames_till_gf_update_due;      // Count down till next GF
  int current_gf_interval;          // GF interval chosen when we coded the last GF
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  int gf_overspend_bits;            // Total bits overspent becasue of GF boost (cumulative)
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  int non_gf_bitrate_adjustment;     // Used in the few frames following a GF to recover the extra bits spent in that GF
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  int kf_overspend_bits;            // Extra bits spent on key frames that need to be recovered on inter frames
  int kf_bitrate_adjustment;        // Current number of bit s to try and recover on each inter frame.
  int max_gf_interval;
  int baseline_gf_interval;
  int active_arnr_frames;           // <= cpi->oxcf.arnr_max_frames
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  int64_t key_frame_count;
  int prior_key_frame_distance[KEY_FRAME_CONTEXT];
  int per_frame_bandwidth;          // Current section per frame bandwidth target
  int av_per_frame_bandwidth;        // Average frame size target for clip
  int min_frame_bandwidth;          // Minimum allocation that should be used for any frame
  int inter_frame_target;
  double output_frame_rate;
  int64_t last_time_stamp_seen;
  int64_t last_end_time_stamp_seen;
  int64_t first_time_stamp_ever;
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  int ni_av_qi;
  int ni_tot_qi;
  int ni_frames;
  int avg_frame_qindex;
  double tot_q;
  double avg_q;
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  int zbin_over_quant;
  int zbin_mode_boost;
  int zbin_mode_boost_enabled;
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  int64_t total_byte_count;
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  int buffered_mode;
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  int buffer_level;
  int bits_off_target;
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  int rolling_target_bits;
  int rolling_actual_bits;
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  int long_rolling_target_bits;
  int long_rolling_actual_bits;
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  int64_t total_actual_bits;
  int total_target_vs_actual;        // debug stats
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  int worst_quality;
  int active_worst_quality;
  int best_quality;
  int active_best_quality;
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  int cq_target_quality;
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  int ymode_count [VP8_YMODES];        /* intra MB type cts this frame */
  int bmode_count [VP8_BINTRAMODES];
  int i8x8_mode_count [VP8_I8X8_MODES];
  int sub_mv_ref_count [SUBMVREF_COUNT][VP8_SUBMVREFS];
  int mbsplit_count [VP8_NUMMBSPLITS];
  // int uv_mode_count[VP8_UV_MODES];       /* intra MB type cts this frame */
  int y_uv_mode_count[VP8_YMODES][VP8_UV_MODES];

  unsigned int MVcount [2] [MVvals];  /* (row,col) MV cts this frame */
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#if CONFIG_HIGH_PRECISION_MV
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  unsigned int MVcount_hp [2] [MVvals_hp];  /* (row,col) MV cts this frame */
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#endif
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  unsigned int coef_counts [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];  /* for this frame */
  // DECLARE_ALIGNED(16, int, coef_counts_backup [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS]);   //not used any more
  // save vp8_tree_probs_from_distribution result for each frame to avoid repeat calculation
  vp8_prob frame_coef_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
  unsigned int frame_branch_ct [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES][2];
  unsigned int coef_counts_8x8 [BLOCK_TYPES_8X8] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];  /* for this frame */
  vp8_prob frame_coef_probs_8x8 [BLOCK_TYPES_8X8] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
  unsigned int frame_branch_ct_8x8 [BLOCK_TYPES_8X8] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES][2];
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#if CONFIG_TX16X16
  unsigned int coef_counts_16x16 [BLOCK_TYPES_16X16] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];  /* for this frame */
  vp8_prob frame_coef_probs_16x16 [BLOCK_TYPES_16X16] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
  unsigned int frame_branch_ct_16x16 [BLOCK_TYPES_16X16] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES][2];
#endif
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  int gfu_boost;
  int last_boost;
  int kf_boost;
  int kf_zeromotion_pct;
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  int target_bandwidth;
  struct vpx_codec_pkt_list  *output_pkt_list;
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#if 0
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  // Experimental code for lagged and one pass
  ONEPASS_FRAMESTATS one_pass_frame_stats[MAX_LAG_BUFFERS];
  int one_pass_frame_index;
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#endif
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  MBGRAPH_FRAME_STATS mbgraph_stats[MAX_LAG_BUFFERS];
  int mbgraph_n_frames;             // number of frames filled in the above
  int static_mb_pct;                // % forced skip mbs by segmentation
  int seg0_progress, seg0_idx, seg0_cnt;
  int ref_pred_count[3][2];

  int decimation_factor;
  int decimation_count;

  // for real time encoding
  int avg_encode_time;              // microsecond
  int avg_pick_mode_time;            // microsecond
  int Speed;
  unsigned int cpu_freq;           // Mhz
  int compressor_speed;

  int interquantizer;
  int goldfreq;
  int auto_worst_q;
  int cpu_used;
  int horiz_scale;
  int vert_scale;
  int pass;
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  vp8_prob last_skip_false_probs[3][MBSKIP_CONTEXTS];
  int last_skip_probs_q[3];
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  int recent_ref_frame_usage[MAX_REF_FRAMES];
  int count_mb_ref_frame_usage[MAX_REF_FRAMES];
  int ref_frame_flags;
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  unsigned char ref_pred_probs_update[PREDICTION_PROBS];
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  SPEED_FEATURES sf;
  int error_bins[1024];
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  // Data used for real time conferencing mode to help determine if it would be good to update the gf
  int inter_zz_count;
  int gf_bad_count;
  int gf_update_recommended;
  int skip_true_count[3];
  int skip_false_count[3];
  int t4x4_count;
  int t8x8_count;
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#if CONFIG_TX16X16
  int t16x16_count;
#endif
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  unsigned char *segmentation_map;
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  // segment threashold for encode breakout
  int  segment_encode_breakout[MAX_MB_SEGMENTS];
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  unsigned char *active_map;
  unsigned int active_map_enabled;
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  TOKENLIST *tplist;
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  fractional_mv_step_fp *find_fractional_mv_step;
  vp8_full_search_fn_t full_search_sad;
  vp8_refining_search_fn_t refining_search_sad;
  vp8_diamond_search_fn_t diamond_search_sad;
  vp8_variance_fn_ptr_t fn_ptr[BLOCK_MAX_SEGMENTS];
  unsigned int time_receive_data;
  unsigned int time_compress_data;
  unsigned int time_pick_lpf;
  unsigned int time_encode_mb_row;
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  int base_skip_false_prob[QINDEX_RANGE][3];
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  struct twopass_rc {
    unsigned int section_intra_rating;
    unsigned int next_iiratio;
    unsigned int this_iiratio;
    FIRSTPASS_STATS *total_stats;
    FIRSTPASS_STATS *this_frame_stats;
    FIRSTPASS_STATS *stats_in, *stats_in_end, *stats_in_start;
    FIRSTPASS_STATS *total_left_stats;
    int first_pass_done;
    int64_t bits_left;
    int64_t clip_bits_total;
    double avg_iiratio;
    double modified_error_total;
    double modified_error_used;
    double modified_error_left;
    double kf_intra_err_min;
    double gf_intra_err_min;
    int frames_to_key;
    int maxq_max_limit;
    int maxq_min_limit;
    int static_scene_max_gf_interval;
    int kf_bits;
    int gf_group_error_left;           // Remaining error from uncoded frames in a gf group. Two pass use only

    // Projected total bits available for a key frame group of frames
    int64_t kf_group_bits;

    // Error score of frames still to be coded in kf group
    int64_t kf_group_error_left;

    int gf_group_bits;                // Projected Bits available for a group of frames including 1 GF or ARF
    int gf_bits;                     // Bits for the golden frame or ARF - 2 pass only
    int alt_extra_bits;

    int sr_update_lag;
    double est_max_qcorrection_factor;
  } twopass;
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#if CONFIG_RUNTIME_CPU_DETECT
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  VP8_ENCODER_RTCD            rtcd;
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#endif
#if VP8_TEMPORAL_ALT_REF
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  YV12_BUFFER_CONFIG alt_ref_buffer;
  YV12_BUFFER_CONFIG *frames[MAX_LAG_BUFFERS];
  int fixed_divide[512];
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#endif

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#if CONFIG_INTERNAL_STATS
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  int    count;
  double total_y;
  double total_u;
  double total_v;
  double total;
  double total_sq_error;
  double totalp_y;
  double totalp_u;
  double totalp_v;
  double totalp;
  double total_sq_error2;
  int    bytes;
  double summed_quality;
  double summed_weights;
  unsigned int tot_recode_hits;


  double total_ssimg_y;
  double total_ssimg_u;
  double total_ssimg_v;
  double total_ssimg_all;

  int b_calculate_ssimg;
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#endif
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  int b_calculate_psnr;
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  // Per MB activity measurement
  unsigned int activity_avg;
  unsigned int *mb_activity_map;
  int *mb_norm_activity_map;
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  // Record of which MBs still refer to last golden frame either
  // directly or through 0,0
  unsigned char *gf_active_flags;
  int gf_active_count;
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  int output_partition;
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  // Store last frame's MV info for next frame MV prediction
  int_mv *lfmv;
  int *lf_ref_frame_sign_bias;
  int *lf_ref_frame;
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  /* force next frame to intra when kf_auto says so */
  int force_next_frame_intra;
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  int droppable;
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  // Global store for SB left contexts, one for each MB row in the SB
  ENTROPY_CONTEXT_PLANES left_context[2];
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  // TODO Do we still need this??
  int update_context;
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  int dummy_packing;    /* flag to indicate if packing is dummy */
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#if CONFIG_PRED_FILTER
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  int pred_filter_on_count;
  int pred_filter_off_count;
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#endif
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#if CONFIG_SWITCHABLE_INTERP
  unsigned int switchable_interp_count[VP8_SWITCHABLE_FILTERS+1]
                                      [VP8_SWITCHABLE_FILTERS];
#endif
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} VP8_COMP;

void control_data_rate(VP8_COMP *cpi);

void vp8_encode_frame(VP8_COMP *cpi);

void vp8_pack_bitstream(VP8_COMP *cpi, unsigned char *dest, unsigned long *size);

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void vp8_activity_masking(VP8_COMP *cpi, MACROBLOCK *x);
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int rd_cost_intra_mb(MACROBLOCKD *x);

void vp8_tokenize_mb(VP8_COMP *, MACROBLOCKD *, TOKENEXTRA **);

void vp8_set_speed_features(VP8_COMP *cpi);
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#if CONFIG_DEBUG
#define CHECK_MEM_ERROR(lval,expr) do {\
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    lval = (expr); \
    if(!lval) \
      vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,\
                         "Failed to allocate "#lval" at %s:%d", \
                         __FILE__,__LINE__);\
  } while(0)
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#else
#define CHECK_MEM_ERROR(lval,expr) do {\
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    lval = (expr); \
    if(!lval) \
      vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,\
                         "Failed to allocate "#lval);\
  } while(0)
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#endif
#endif