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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"
#include "onyx.h"
#include "treewriter.h"
#include "tokenize.h"
#include "onyxc_int.h"
#include "variance.h"
#include "dct.h"
#include "encodemb.h"
#include "quantize.h"
#include "entropy.h"
#include "threading.h"
#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 "findnearmv.h"
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//#define SPEEDSTATS 1
#define MIN_GF_INTERVAL             4
#define DEFAULT_GF_INTERVAL         7

#define KEY_FRAME_CONTEXT 5

#define MAX_LAG_BUFFERS (CONFIG_REALTIME_ONLY? 1 : 25)

#define AF_THRESH   25
#define AF_THRESH2  100
#define ARF_DECAY_THRESH 12
#define MAX_MODES 20

#define MIN_THRESHMULT  32
#define MAX_THRESHMULT  512

#define GF_ZEROMV_ZBIN_BOOST 24
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#define LF_ZEROMV_ZBIN_BOOST 12
#define MV_ZBIN_BOOST        4
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#define ZBIN_OQ_MAX 192

#define VP8_TEMPORAL_ALT_REF 1

typedef struct
{
    int kf_indicated;
    unsigned int frames_since_key;
    unsigned int frames_since_golden;
    int filter_level;
    int frames_till_gf_update_due;
    int recent_ref_frame_usage[MAX_REF_FRAMES];

    MV_CONTEXT mvc[2];
    int mvcosts[2][MVvals+1];

#ifdef MODE_STATS
    // Stats
    int y_modes[5];
    int uv_modes[4];
    int b_modes[10];
    int inter_y_modes[10];
    int inter_uv_modes[4];
    int inter_b_modes[10];
#endif

    vp8_prob ymode_prob[4], uv_mode_prob[3];   /* interframe intra mode probs */
    vp8_prob kf_ymode_prob[4], kf_uv_mode_prob[3];   /* keyframe "" */

    int ymode_count[5], uv_mode_count[4];  /* intra MB type cts this frame */

    int count_mb_ref_frame_usage[MAX_REF_FRAMES];

    int this_frame_percent_intra;
    int last_frame_percent_intra;


} CODING_CONTEXT;

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

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;

} ONEPASS_FRAMESTATS;


typedef enum
{
    THR_ZEROMV         = 0,
    THR_DC             = 1,

    THR_NEARESTMV      = 2,
    THR_NEARMV         = 3,

    THR_ZEROG          = 4,
    THR_NEARESTG       = 5,

    THR_ZEROA          = 6,
    THR_NEARESTA       = 7,

    THR_NEARG          = 8,
    THR_NEARA          = 9,

    THR_V_PRED         = 10,
    THR_H_PRED         = 11,
    THR_TM             = 12,

    THR_NEWMV          = 13,
    THR_NEWG           = 14,
    THR_NEWA           = 15,

    THR_SPLITMV        = 16,
    THR_SPLITG         = 17,
    THR_SPLITA         = 18,

    THR_B_PRED         = 19,
}
THR_MODES;

typedef enum
{
    DIAMOND = 0,
    NSTEP = 1,
    HEX = 2
} SEARCH_METHODS;

typedef struct
{
    int RD;
    SEARCH_METHODS search_method;
    int improved_quant;
    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 full_freq[2];
    int min_fs_radius;
    int max_fs_radius;
    int max_step_search_steps;
    int first_step;
    int optimize_coefficients;

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    int use_fastquant_for_pick;
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    int no_skip_block4x4_search;
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} SPEED_FEATURES;

typedef struct
{
    MACROBLOCK  mb;
    int segment_counts[MAX_MB_SEGMENTS];
    int totalrate;
} MB_ROW_COMP;

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

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

typedef struct
{
    INT64  source_time_stamp;
    INT64  source_end_time_stamp;

    DECLARE_ALIGNED(16, YV12_BUFFER_CONFIG, source_buffer);
    unsigned int source_frame_flags;
} SOURCE_SAMPLE;

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_quantize_rtcd_vtable_t  quantize;
    vp8_search_rtcd_vtable_t    search;
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    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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typedef struct
{

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    DECLARE_ALIGNED(16, short, Y1quant[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, Y1quant_shift[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, Y1zbin[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, Y1round[QINDEX_RANGE][16]);

    DECLARE_ALIGNED(16, short, Y2quant[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, Y2quant_shift[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, Y2zbin[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, Y2round[QINDEX_RANGE][16]);

    DECLARE_ALIGNED(16, short, UVquant[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, 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(16, short, Y1quant_fast[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, Y2quant_fast[QINDEX_RANGE][16]);
    DECLARE_ALIGNED(16, short, UVquant_fast[QINDEX_RANGE][16]);
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    MACROBLOCK mb;
    VP8_COMMON common;
    vp8_writer bc, bc2;
    // bool_writer *bc2;

    VP8_CONFIG oxcf;

    YV12_BUFFER_CONFIG *Source;
    YV12_BUFFER_CONFIG *un_scaled_source;
    INT64 source_time_stamp;
    INT64 source_end_time_stamp;
    unsigned int source_frame_flags;
    YV12_BUFFER_CONFIG scaled_source;

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    int source_buffer_count;    // number of src_buffers in use for lagged encoding
    int source_encode_index;    // index of buffer in src_buffer to encode
    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

    int last_alt_ref_sei;       // index into src_buffers of frame used as alt reference
    int is_src_frame_alt_ref;   // source of frame to encode is an exact copy of an alt ref frame
    int is_next_src_alt_ref;    // source of next 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).

    //int refresh_alt_ref_frame;
    SOURCE_SAMPLE src_buffer[MAX_LAG_BUFFERS];

    YV12_BUFFER_CONFIG last_frame_uf;

    TOKENEXTRA *tok;
    unsigned int tok_count;


    unsigned int frames_since_key;
    unsigned int key_frame_frequency;
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    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];
    unsigned int mbs_tested_so_far;

    unsigned int check_freq[2];
    unsigned int do_full[2];

    int rd_thresh_mult[MAX_MODES];
    int rd_baseline_thresh[MAX_MODES];
    int rd_threshes[MAX_MODES];
    int mvcostbase;
    int mvcostmultiplier;
    int subseqblockweight;
    int errthresh;
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    unsigned int activity_avg;
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    int RDMULT;
    int RDDIV ;

    CODING_CONTEXT coding_context;

    // Rate targetting variables
    long long prediction_error;
    long long last_prediction_error;
    long long intra_error;
    long long last_intra_error;

#if 0
    // Experimental RD code
    long long frame_distortion;
    long long last_frame_distortion;
#endif

    int last_mb_distortion;

    int frames_since_auto_filter;

    int this_frame_target;
    int projected_frame_size;
    int last_q[2];                   // Separate values for Intra/Inter

    double rate_correction_factor;
    double key_frame_rate_correction_factor;
    double gf_rate_correction_factor;
    double est_max_qcorrection_factor;

    int frames_till_gf_update_due;      // Count down till next GF
    int current_gf_interval;          // GF interval chosen when we coded the last GF

    int gf_overspend_bits;            // Total bits overspent becasue of GF boost (cumulative)

    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 mid_gf_extra_bits;             // A few extra bits for the frame half way between two gfs.

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

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

    // Bits for the key frame in a key frame group - 2 pass only
    int kf_bits;
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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
    int initial_gf_use;               // percentage use of gf 2 frames after gf

    int gf_group_error_left;           // Remaining error from uncoded frames in a gf group. Two pass use only

    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;
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    int static_scene_max_gf_interval;
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    int baseline_gf_interval;
    int gf_decay_rate;
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    int active_arnr_frames;           // <= cpi->oxcf.arnr_max_frames
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    INT64 key_frame_count;
    INT64 tot_key_frame_bits;
    int prior_key_frame_size[KEY_FRAME_CONTEXT];
    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 last_key_frame_size;
    int intra_frame_target;
    int inter_frame_target;
    double output_frame_rate;
    long long last_time_stamp_seen;
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    long long last_end_time_stamp_seen;
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    long long first_time_stamp_ever;

    int ni_av_qi;
    int ni_tot_qi;
    int ni_frames;
    int avg_frame_qindex;

    int zbin_over_quant;
    int zbin_mode_boost;
    int zbin_mode_boost_enabled;

    INT64 total_byte_count;

    int buffered_mode;

    int buffer_level;
    int bits_off_target;

    int rolling_target_bits;
    int rolling_actual_bits;

    int long_rolling_target_bits;
    int long_rolling_actual_bits;

    long long total_actual_bits;
    int total_target_vs_actual;        // debug stats

    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 maxq_max_limit;
    int maxq_min_limit;

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    int drop_frames_allowed;          // Are we permitted to drop frames?
    int drop_frame;                  // Drop this frame?
    int drop_count;                  // How many frames have we dropped?
    int max_drop_count;               // How many frames should we drop?
    int max_consec_dropped_frames;     // Limit number of consecutive frames that can be dropped.


    int ymode_count [VP8_YMODES];        /* intra MB type cts this frame */
    int uv_mode_count[VP8_UV_MODES];       /* intra MB type cts this frame */

    unsigned int MVcount [2] [MVvals];  /* (row,col) MV cts this frame */

    unsigned int coef_counts [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [vp8_coef_tokens];  /* for this frame */
    //DECLARE_ALIGNED(16, int, coef_counts_backup [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [vp8_coef_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] [vp8_coef_tokens-1];
    unsigned int frame_branch_ct [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [vp8_coef_tokens-1][2];

    /* Second compressed data partition contains coefficient data. */

    unsigned char *output_partition2;
    size_t output_partition2size;

    int frames_to_key;
    int gfu_boost;
    int kf_boost;
    int last_boost;
    double total_error_left;
    double total_intra_error_left;
    double total_coded_error_left;
    double start_tot_err_left;
    double min_error;
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    double kf_intra_err_min;
    double gf_intra_err_min;
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    double modified_error_total;
    double modified_error_used;
    double modified_error_left;
    double clip_bpe;
    double observed_bpe;

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    double avg_iiratio;

    int target_bandwidth;
    long long bits_left;
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    long long clip_bits_total;
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    FIRSTPASS_STATS *total_stats;
    FIRSTPASS_STATS *this_frame_stats;
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    FIRSTPASS_STATS *stats_in, *stats_in_end;
    struct vpx_codec_pkt_list  *output_pkt_list;
    int                          first_pass_done;
    unsigned char *fp_motion_map;
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    unsigned char *fp_motion_map_stats, *fp_motion_map_stats_save;
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#if 0
    // Experimental code for lagged and one pass
    ONEPASS_FRAMESTATS one_pass_frame_stats[MAX_LAG_BUFFERS];
    int one_pass_frame_index;
#endif

    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 auto_gold;
    int auto_adjust_gold_quantizer;
    int goldquantizer;
    int goldfreq;
    int auto_adjust_key_quantizer;
    int keyquantizer;
    int auto_worst_q;
    int filter_type;
    int cpu_used;
    int chroma_boost;
    int horiz_scale;
    int vert_scale;
    int pass;


    int prob_intra_coded;
    int prob_last_coded;
    int prob_gf_coded;
    int prob_skip_false;
    int last_skip_false_probs[3];
    int last_skip_probs_q[3];
    int recent_ref_frame_usage[MAX_REF_FRAMES];

    int count_mb_ref_frame_usage[MAX_REF_FRAMES];
    int this_frame_percent_intra;
    int last_frame_percent_intra;

    int last_key_frame_q;
    int last_kffilt_lvl;

    int ref_frame_flags;

    SPEED_FEATURES sf;
    int error_bins[1024];

    int inter_lvl;
    int intra_lvl;
    int motion_lvl;
    int motion_speed;
    int motion_var;
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    unsigned int next_iiratio;
    unsigned int this_iiratio;
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    int this_frame_modified_error;

    double norm_intra_err_per_mb;
    double norm_inter_err_per_mb;
    double norm_iidiff_per_mb;

    int last_best_mode_index;          // Record of mode index chosen for previous macro block.
    int last_auto_filt_val;
    int last_auto_filt_q;

    // 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;
    int skip_false_count;

    int alt_qcount;

    int ready_for_new_frame;

    unsigned char *segmentation_map;
    signed char segment_feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];            // Segment data (can be deltas or absolute values)
    int  segment_encode_breakout[MAX_MB_SEGMENTS];                    // segment threashold for encode breakout

    unsigned char *active_map;
    unsigned int active_map_enabled;
    // Video conferencing cyclic refresh mode flags etc
    // This is a mode designed to clean up the background over time in live encoding scenarious. It uses segmentation
    int cyclic_refresh_mode_enabled;
    int cyclic_refresh_mode_max_mbs_perframe;
    int cyclic_refresh_mode_index;
    int cyclic_refresh_q;
    signed char *cyclic_refresh_map;

    // multithread data
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    int * mt_current_mb_col;
    int mt_sync_range;
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    int processor_core_count;
    int b_multi_threaded;
    int encoding_thread_count;

#if CONFIG_MULTITHREAD
    pthread_t *h_encoding_thread;
#endif
    MB_ROW_COMP *mb_row_ei;
    ENCODETHREAD_DATA *en_thread_data;

#if CONFIG_MULTITHREAD
    //events
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    sem_t *h_event_start_encoding;
    sem_t h_event_end_encoding;
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#endif

    TOKENLIST *tplist;
    // end of multithread data


    fractional_mv_step_fp *find_fractional_mv_step;
    vp8_full_search_fn_t full_search_sad;
    vp8_diamond_search_fn_t diamond_search_sad;
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    vp8_variance_fn_ptr_t fn_ptr[BLOCK_MAX_SEGMENTS];
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    unsigned int time_receive_data;
    unsigned int time_compress_data;
    unsigned int time_pick_lpf;
    unsigned int time_encode_mb_row;

    unsigned int tempdata1;
    unsigned int tempdata2;

    int base_skip_false_prob[128];
    unsigned int section_intra_rating;

    double section_max_qfactor;


#if CONFIG_RUNTIME_CPU_DETECT
    VP8_ENCODER_RTCD            rtcd;
#endif
#if VP8_TEMPORAL_ALT_REF
    SOURCE_SAMPLE alt_ref_buffer;
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    YV12_BUFFER_CONFIG *frames[MAX_LAG_BUFFERS];
    int fixed_divide[512];
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#endif
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    // Flag to indicate temporal filter method
    int use_weighted_temporal_filter;
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#if CONFIG_PSNR
    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;
#endif
    int b_calculate_psnr;
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    unsigned char *gf_active_flags;   // Record of which MBs still refer to last golden frame either directly or through 0,0
    int gf_active_count;

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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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} 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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unsigned int 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);

#if CONFIG_DEBUG
#define CHECK_MEM_ERROR(lval,expr) do {\
        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)
#else
#define CHECK_MEM_ERROR(lval,expr) do {\
        lval = (expr); \
        if(!lval) \
            vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,\
                               "Failed to allocate "#lval);\
    } while(0)
#endif
#endif