onyx_if.c 176 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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 */


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#include "vpx_config.h"
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#include "vp8/common/onyxc_int.h"
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#include "onyx_int.h"
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#include "vp8/common/systemdependent.h"
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#include "quantize.h"
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#include "vp8/common/alloccommon.h"
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#include "mcomp.h"
#include "firstpass.h"
#include "psnr.h"
#include "vpx_scale/vpxscale.h"
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#include "vp8/common/extend.h"
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#include "ratectrl.h"
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#include "vp8/common/quant_common.h"
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#include "segmentation.h"
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#include "vp8/common/g_common.h"
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#include "vpx_scale/yv12extend.h"
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#if CONFIG_POSTPROC
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#include "vp8/common/postproc.h"
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#endif
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#include "vpx_mem/vpx_mem.h"
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#include "vp8/common/swapyv12buffer.h"
#include "vp8/common/threading.h"
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#include "vpx_ports/vpx_timer.h"
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#include "temporal_filter.h"
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#if CONFIG_SEGFEATURES
#include "vp8/common/seg_common.h"
#include "mbgraph.h"
#endif

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#if ARCH_ARM
#include "vpx_ports/arm.h"
#endif
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#include <math.h>
#include <stdio.h>
#include <limits.h>

#if CONFIG_RUNTIME_CPU_DETECT
#define IF_RTCD(x) (x)
#define RTCD(x) &cpi->common.rtcd.x
#else
#define IF_RTCD(x) NULL
#define RTCD(x) NULL
#endif

extern void vp8cx_pick_filter_level_fast(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi);
extern void vp8cx_set_alt_lf_level(VP8_COMP *cpi, int filt_val);
extern void vp8cx_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi);

extern void vp8_dmachine_specific_config(VP8_COMP *cpi);
extern void vp8_cmachine_specific_config(VP8_COMP *cpi);
extern void vp8_deblock_frame(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *post, int filt_lvl, int low_var_thresh, int flag);
extern void print_parms(VP8_CONFIG *ocf, char *filenam);
extern unsigned int vp8_get_processor_freq();
extern void print_tree_update_probs();
extern void vp8cx_create_encoder_threads(VP8_COMP *cpi);
extern void vp8cx_remove_encoder_threads(VP8_COMP *cpi);
#if HAVE_ARMV7
extern void vp8_yv12_copy_frame_func_neon(YV12_BUFFER_CONFIG *src_ybc, YV12_BUFFER_CONFIG *dst_ybc);
extern void vp8_yv12_copy_src_frame_func_neon(YV12_BUFFER_CONFIG *src_ybc, YV12_BUFFER_CONFIG *dst_ybc);
#endif

int vp8_estimate_entropy_savings(VP8_COMP *cpi);
int vp8_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest, const vp8_variance_rtcd_vtable_t *rtcd);

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extern void vp8_temporal_filter_prepare_c(VP8_COMP *cpi, int distance);
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static void set_default_lf_deltas(VP8_COMP *cpi);
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extern const int vp8_gf_interval_table[101];

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#if CONFIG_INTERNAL_STATS
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#include "math.h"

extern double vp8_calc_ssim
(
    YV12_BUFFER_CONFIG *source,
    YV12_BUFFER_CONFIG *dest,
    int lumamask,
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    double *weight,
    const vp8_variance_rtcd_vtable_t *rtcd
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);

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extern double vp8_calc_ssimg
(
    YV12_BUFFER_CONFIG *source,
    YV12_BUFFER_CONFIG *dest,
    double *ssim_y,
    double *ssim_u,
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    double *ssim_v,
    const vp8_variance_rtcd_vtable_t *rtcd
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);


#endif

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//#define OUTPUT_YUV_REC
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#ifdef OUTPUT_YUV_SRC
FILE *yuv_file;
#endif
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#ifdef OUTPUT_YUV_REC
FILE *yuv_rec_file;
#endif
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#if 0
FILE *framepsnr;
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FILE *kf_list;
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FILE *keyfile;
#endif

#if 0
extern int skip_true_count;
extern int skip_false_count;
#endif


#ifdef ENTROPY_STATS
extern int intra_mode_stats[10][10][10];
#endif

#ifdef SPEEDSTATS
unsigned int frames_at_speed[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
unsigned int tot_pm = 0;
unsigned int cnt_pm = 0;
unsigned int tot_ef = 0;
unsigned int cnt_ef = 0;
#endif

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#if defined(SECTIONBITS_OUTPUT)
extern unsigned __int64 Sectionbits[500];
#endif
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#ifdef MODE_STATS
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extern INT64 Sectionbits[500];
extern int y_modes[VP8_YMODES]  ;
extern int i8x8_modes[VP8_I8X8_MODES];
extern int uv_modes[VP8_UV_MODES] ;
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extern int b_modes[10]  ;
extern int inter_y_modes[10] ;
extern int inter_uv_modes[4] ;
extern unsigned int inter_b_modes[15];
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#if CONFIG_SEGMENTATION
extern int segment_modes_intra[MAX_MB_SEGMENTS];
extern int segment_modes_inter[MAX_MB_SEGMENTS];
#endif
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#endif

extern void (*vp8_short_fdct4x4)(short *input, short *output, int pitch);
extern void (*vp8_short_fdct8x4)(short *input, short *output, int pitch);

extern const int vp8_bits_per_mb[2][QINDEX_RANGE];

extern const int qrounding_factors[129];
extern const int qzbin_factors[129];
extern void vp8cx_init_quantizer(VP8_COMP *cpi);
extern const int vp8cx_base_skip_false_prob[128];
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#if !CONFIG_EXTEND_QRANGE
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// Tables relating active max Q to active min Q
static const int kf_low_motion_minq[QINDEX_RANGE] =
{
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    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,
    3,3,3,3,3,3,4,4,4,5,5,5,5,5,6,6,
    6,6,7,7,8,8,8,8,9,9,10,10,10,10,11,11,
    11,11,12,12,13,13,13,13,14,14,15,15,15,15,16,16,
    16,16,17,17,18,18,18,18,19,20,20,21,21,22,23,23
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};
static const int kf_high_motion_minq[QINDEX_RANGE] =
{
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    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    1,1,1,1,1,1,1,1,2,2,2,2,3,3,3,3,
    3,3,3,3,4,4,4,4,5,5,5,5,5,5,6,6,
    6,6,7,7,8,8,8,8,9,9,10,10,10,10,11,11,
    11,11,12,12,13,13,13,13,14,14,15,15,15,15,16,16,
    16,16,17,17,18,18,18,18,19,19,20,20,20,20,21,21,
    21,21,22,22,23,23,24,25,25,26,26,27,28,28,29,30
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};
static const int gf_low_motion_minq[QINDEX_RANGE] =
{
    0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,
    3,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,
    7,7,7,7,8,8,8,8,9,9,9,9,10,10,10,10,
    11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,
    19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,
    27,27,28,28,29,29,30,30,31,31,32,32,33,33,34,34,
    35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,
    43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58
};
static const int gf_mid_motion_minq[QINDEX_RANGE] =
{
    0,0,0,0,1,1,1,1,1,1,2,2,3,3,3,4,
    4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
    9,10,10,10,10,11,11,11,12,12,12,12,13,13,13,14,
    14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,
    22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,
    30,30,31,31,32,32,33,33,34,34,35,35,36,36,37,37,
    38,39,39,40,40,41,41,42,42,43,43,44,45,46,47,48,
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};
static const int gf_high_motion_minq[QINDEX_RANGE] =
{
    0,0,0,0,1,1,1,1,1,2,2,2,3,3,3,4,
    4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
    9,10,10,10,11,11,12,12,13,13,14,14,15,15,16,16,
    17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,
    25,25,26,26,27,27,28,28,29,29,30,30,31,31,32,32,
    33,33,34,34,35,35,36,36,37,37,38,38,39,39,40,40,
    41,41,42,42,43,44,45,46,47,48,49,50,51,52,53,54,
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    55,56,57,58,59,60,62,64,66,68,70,72,74,76,78,80
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};
static const int inter_minq[QINDEX_RANGE] =
{
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    0,0,1,1,2,3,3,4,4,5,6,6,7,8,8,9,
    9,10,11,11,12,13,13,14,15,15,16,17,17,18,19,20,
    20,21,22,22,23,24,24,25,26,27,27,28,29,30,30,31,
    32,33,33,34,35,36,36,37,38,39,39,40,41,42,42,43,
    44,45,46,46,47,48,49,50,50,51,52,53,54,55,55,56,
    57,58,59,60,60,61,62,63,64,65,66,67,67,68,69,70,
    71,72,73,74,75,75,76,77,78,79,80,81,82,83,84,85,
    86,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100
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};
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#else
static const int kf_low_motion_minq[QINDEX_RANGE] =
{
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3,
     4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8,
    9, 9, 9, 10,10,11,11,12,12,13,13,14,14,15,15,16,
    16,17,17,18,18,19,19,20,20,21,21,22,23,23,24,24,
    25,25,26,27,28,29,30,30,31,32,33,34,35,35,36,36,
    38,38,39,40,40,41,42,42,43,44,44,45,46,46,47,48,
    49,49,50,50,51,52,52,53,54,55,56,57,58,59,60,61,
};
static const int kf_high_motion_minq[QINDEX_RANGE] =
{
     0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2,
     2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6,
     6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9,10,10,
    11,11,12,13,14,15,16,17,18,19,20,21,22,23,24,24,
    25,26,27,28,28,29,29,30,30,31,31,32,33,33,34,34,
    35,36,37,38,39,39,40,41,41,42,43,44,45,45,46,46,
    47,47,48,48,49,49,50,50,51,51,52,52,53,53,54,54,
    55,55,56,56,57,58,59,60,61,62,63,64,65,67,69,70,
};
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static const int gf_low_motion_minq[QINDEX_RANGE] =
{
     0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4,
     4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9,
    10,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,
    17,18,18,19,19,20,21,22,23,24,25,26,27,29,29,30,
    31,32,33,34,35,36,37,38,39,40,41,41,42,42,43,43,
    44,44,45,45,46,46,47,47,48,48,49,49,50,50,51,51,
    52,52,53,53,54,54,55,55,56,56,57,57,58,59,60,61,
    62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,
};
static const int gf_mid_motion_minq[QINDEX_RANGE] =
{
     0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4,
     4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9,10,
    10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,
    18,19,19,20,20,21,22,23,24,25,26,27,28,29,30,31,
    32,33,34,35,35,36,36,37,37,38,38,39,39,40,40,41,
    41,42,42,43,43,44,44,45,45,46,46,47,48,49,50,51,
    52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,
    68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,
};
static const int gf_high_motion_minq[QINDEX_RANGE] =
{
     0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4,
     4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8, 9, 9,10,10,
    11,11,12,12,13,14,15,16,17,18,18,19,19,20,20,21,
    22,23,24,25,26,26,27,28,29,30,31,32,33,34,35,36,
    37,38,39,39,40,40,40,41,41,41,42,42,43,43,44,44,
    44,45,45,45,46,46,47,47,47,48,48,48,49,49,49,50,
    50,50,51,51,52,53,54,54,55,56,57,57,58,59,60,61,
    62,63,64,66,68,69,72,74,77,80,82,85,87,89,91,93,
};

static const int inter_minq[QINDEX_RANGE] =
{
     0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7,
     8, 9,10,11,12,13,14,15,16,17,18,18,19,19,20,21,
    21,22,23,23,24,25,26,26,27,28,29,30,31,32,32,33,
    34,35,36,36,37,38,39,40,40,41,41,42,43,44,44,45,
    46,46,47,47,48,49,49,50,50,51,52,52,53,54,54,55,
    55,56,57,57,58,59,60,60,61,62,63,63,64,65,66,67,
    68,68,69,70,71,72,72,73,74,75,76,77,78,79,80,81,
    81,82,83,84,85,86,87,88,89,90,90,91,92,93,94,95,
};
#endif
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void vp8_initialize()
{
    static int init_done = 0;

    if (!init_done)
    {
        vp8_scale_machine_specific_config();
        vp8_initialize_common();
        //vp8_dmachine_specific_config();
        vp8_tokenize_initialize();

        init_done = 1;
    }
}
#ifdef PACKET_TESTING
extern FILE *vpxlogc;
#endif

static void setup_features(VP8_COMP *cpi)
{
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    MACROBLOCKD *xd = &cpi->mb.e_mbd;

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    // Set up default state for MB feature flags
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#if CONFIG_SEGMENTATION
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    xd->segmentation_enabled = 1;
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#else
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    xd->segmentation_enabled = 0;
#endif
    xd->update_mb_segmentation_map = 0;
    xd->update_mb_segmentation_data = 0;
    vpx_memset(xd->mb_segment_tree_probs, 255, sizeof(xd->mb_segment_tree_probs));
    vpx_memset(xd->segment_feature_data, 0, sizeof(xd->segment_feature_data));

#if CONFIG_SEGFEATURES
    vpx_memset(xd->segment_feature_mask, 0, sizeof(xd->segment_feature_mask));
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#endif
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    xd->mode_ref_lf_delta_enabled = 0;
    xd->mode_ref_lf_delta_update = 0;
    vpx_memset(xd->ref_lf_deltas, 0, sizeof(xd->ref_lf_deltas));
    vpx_memset(xd->mode_lf_deltas, 0, sizeof(xd->mode_lf_deltas));
    vpx_memset(xd->last_ref_lf_deltas, 0, sizeof(xd->ref_lf_deltas));
    vpx_memset(xd->last_mode_lf_deltas, 0, sizeof(xd->mode_lf_deltas));
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    set_default_lf_deltas(cpi);
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}


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static void dealloc_compressor_data(VP8_COMP *cpi)
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{
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    vpx_free(cpi->tplist);
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    cpi->tplist = NULL;

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    // Delete last frame MV storage buffers
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    vpx_free(cpi->lfmv);
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    cpi->lfmv = 0;

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    vpx_free(cpi->lf_ref_frame_sign_bias);
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    cpi->lf_ref_frame_sign_bias = 0;

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    vpx_free(cpi->lf_ref_frame);
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    cpi->lf_ref_frame = 0;
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    // Delete sementation map
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    vpx_free(cpi->segmentation_map);
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    cpi->segmentation_map = 0;

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    vpx_free(cpi->active_map);
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    cpi->active_map = 0;

    vp8_de_alloc_frame_buffers(&cpi->common);

    vp8_yv12_de_alloc_frame_buffer(&cpi->last_frame_uf);
    vp8_yv12_de_alloc_frame_buffer(&cpi->scaled_source);
#if VP8_TEMPORAL_ALT_REF
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    vp8_yv12_de_alloc_frame_buffer(&cpi->alt_ref_buffer);
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#endif
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    vp8_lookahead_destroy(cpi->lookahead);
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    vpx_free(cpi->tok);
    cpi->tok = 0;

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    // Structure used to monitor GF usage
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    vpx_free(cpi->gf_active_flags);
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    cpi->gf_active_flags = 0;

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    // Activity mask based per mb zbin adjustments
    vpx_free(cpi->mb_activity_map);
    cpi->mb_activity_map = 0;
    vpx_free(cpi->mb_norm_activity_map);
    cpi->mb_norm_activity_map = 0;

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    vpx_free(cpi->mb.pip);
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    cpi->mb.pip = 0;

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#if !(CONFIG_REALTIME_ONLY)
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    vpx_free(cpi->twopass.total_stats);
    cpi->twopass.total_stats = 0;
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    vpx_free(cpi->twopass.this_frame_stats);
    cpi->twopass.this_frame_stats = 0;
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#endif
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}

static void segmentation_test_function(VP8_PTR ptr)
{
    VP8_COMP *cpi = (VP8_COMP *)(ptr);
    unsigned char *seg_map;
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    signed char feature_data[SEG_LVL_MAX][MAX_MB_SEGMENTS];
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    MACROBLOCKD *xd = &cpi->mb.e_mbd;

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    CHECK_MEM_ERROR(seg_map, vpx_calloc((cpi->common.mb_rows * cpi->common.mb_cols), 1));
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    // Create a temporary map for segmentation data.

    // MB loop to set local segmentation map
    /*for ( i = 0; i < cpi->common.mb_rows; i++ )
    {
        for ( j = 0; j < cpi->common.mb_cols; j++ )
        {
            //seg_map[(i*cpi->common.mb_cols) + j] = (j % 2) + ((i%2)* 2);
            //if ( j < cpi->common.mb_cols/2 )

            // Segment 1 around the edge else 0
            if ( (i == 0) || (j == 0) || (i == (cpi->common.mb_rows-1)) || (j == (cpi->common.mb_cols-1)) )
                seg_map[(i*cpi->common.mb_cols) + j] = 1;
            //else if ( (i < 2) || (j < 2) || (i > (cpi->common.mb_rows-3)) || (j > (cpi->common.mb_cols-3)) )
            //  seg_map[(i*cpi->common.mb_cols) + j] = 2;
            //else if ( (i < 5) || (j < 5) || (i > (cpi->common.mb_rows-6)) || (j > (cpi->common.mb_cols-6)) )
            //  seg_map[(i*cpi->common.mb_cols) + j] = 3;
            else
                seg_map[(i*cpi->common.mb_cols) + j] = 0;
        }
    }*/

    // Set the segmentation Map
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    vp8_set_segmentation_map(ptr, seg_map);
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    // Activate segmentation.
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    vp8_enable_segmentation(ptr);
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    // Set up the quant segment data
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    feature_data[SEG_LVL_ALT_Q][0] = 0;
    feature_data[SEG_LVL_ALT_Q][1] = 4;
    feature_data[SEG_LVL_ALT_Q][2] = 0;
    feature_data[SEG_LVL_ALT_Q][3] = 0;
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    // Set up the loop segment data
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    feature_data[SEG_LVL_ALT_LF][0] = 0;
    feature_data[SEG_LVL_ALT_LF][1] = 0;
    feature_data[SEG_LVL_ALT_LF][2] = 0;
    feature_data[SEG_LVL_ALT_LF][3] = 0;
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#if CONFIG_SEGFEATURES
    // Enable features as required
    enable_segfeature(xd, 1, SEG_LVL_ALT_Q);
#endif

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    // Initialise the feature data structure
    // SEGMENT_DELTADATA    0, SEGMENT_ABSDATA      1
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    vp8_set_segment_data(ptr, &feature_data[0][0], SEGMENT_DELTADATA);
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    // Delete sementation map
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    vpx_free(seg_map);
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    seg_map = 0;

}

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#if CONFIG_SEGFEATURES
static void init_seg_features(VP8_COMP *cpi)
{
    VP8_COMMON *cm = &cpi->common;
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    MACROBLOCKD *xd = &cpi->mb.e_mbd;
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    // For now at least dont enable seg features alongside cyclic refresh.
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    if ( cpi->cyclic_refresh_mode_enabled ||
         (cpi->pass != 2) )
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    {
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        vp8_disable_segmentation((VP8_PTR)cpi);
        vpx_memset( cpi->segmentation_map, 0, (cm->mb_rows * cm->mb_cols));
        return;
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    }
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    // Disable and clear down for KF,ARF and low Q
    if ( cm->frame_type == KEY_FRAME || cm->refresh_alt_ref_frame )
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    {
        // Clear down the global segmentation map
        vpx_memset( cpi->segmentation_map, 0, (cm->mb_rows * cm->mb_cols));
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        xd->update_mb_segmentation_map = 0;
        xd->update_mb_segmentation_data = 0;
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        // Disable segmentation
        vp8_disable_segmentation((VP8_PTR)cpi);
    }
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    // First normal frame in a valid alt ref group and we dont have low Q
    else if ( cpi->source_alt_ref_active &&
              (cpi->common.frames_since_golden == 1) )
    {
        // Low Q test (only use segmentation at high q)
        if ( ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
               (cpi->cq_target_quality > 56 ) ) ||
             (cpi->ni_av_qi > 64) )
        {
            xd->segment_feature_data[1][SEG_LVL_REF_FRAME] = LAST_FRAME;
            xd->segment_feature_data[1][SEG_LVL_MODE] = ZEROMV;
            xd->segment_feature_data[1][SEG_LVL_EOB] = 10;
            xd->segment_feature_data[1][SEG_LVL_ALT_Q] = 10;
            xd->segment_feature_data[1][SEG_LVL_ALT_LF] = -5;

            // Enable target features is the segment feature mask
            enable_segfeature(xd, 1, SEG_LVL_REF_FRAME);
            enable_segfeature(xd, 1, SEG_LVL_MODE);
            enable_segfeature(xd, 1, SEG_LVL_EOB);
            enable_segfeature(xd, 1, SEG_LVL_ALT_Q);
            enable_segfeature(xd, 1, SEG_LVL_ALT_LF);

            // Where relevant assume segment data is delta data
            xd->mb_segement_abs_delta = SEGMENT_DELTADATA;

            // Scan frames from current to arf frame and define segmentation
            vp8_update_mbgraph_stats(cpi);
        }
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    }
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    // Normal frames if segmentation got enabled.
    else if ( xd->segmentation_enabled )
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    {
        // Special case where we are coding over the top of a previous
        // alt ref frame
        if ( cpi->is_src_frame_alt_ref )
        {
            if ( cpi->source_alt_ref_pending )
            {
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                xd->update_mb_segmentation_data = 1;
                xd->segment_feature_data[1][SEG_LVL_REF_FRAME] = ALTREF_FRAME;
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            }
            else
            {
                vpx_memset( cpi->segmentation_map, 0,
                            (cm->mb_rows * cm->mb_cols));
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                xd->update_mb_segmentation_map = 1;
                xd->update_mb_segmentation_data = 1;
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            }
        }
        else
        {
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            xd->update_mb_segmentation_data = 0;
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        }
    }
}

// DEBUG: Print out the segment id of each MB in the current frame.
static void print_seg_map(VP8_COMP *cpi)
{
    VP8_COMMON *cm = & cpi->common;
    int row,col;
    int map_index = 0;
    FILE *statsfile;

    statsfile = fopen("segmap.stt", "a");

    fprintf(statsfile, "%10d\n",
            cm->current_video_frame );

    for ( row = 0; row < cpi->common.mb_rows; row++ )
    {
        for ( col = 0; col < cpi->common.mb_cols; col++ )
        {
            fprintf(statsfile, "%10d",
                    cpi->segmentation_map[map_index]);
            map_index++;
        }
        fprintf(statsfile, "\n");
    }
    fprintf(statsfile, "\n");

    fclose(statsfile);
}

#endif

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// A simple function to cyclically refresh the background at a lower Q
static void cyclic_background_refresh(VP8_COMP *cpi, int Q, int lf_adjustment)
{
    unsigned char *seg_map;
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    signed char feature_data[SEG_LVL_MAX][MAX_MB_SEGMENTS];
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    int i;
    int block_count = cpi->cyclic_refresh_mode_max_mbs_perframe;
    int mbs_in_frame = cpi->common.mb_rows * cpi->common.mb_cols;
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    MACROBLOCKD *xd = &cpi->mb.e_mbd;
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    // Create a temporary map for segmentation data.
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    CHECK_MEM_ERROR(seg_map, vpx_calloc((cpi->common.mb_rows * cpi->common.mb_cols), 1));
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    cpi->cyclic_refresh_q = Q;

    for (i = Q; i > 0; i--)
    {
        if (vp8_bits_per_mb[cpi->common.frame_type][i] >= ((vp8_bits_per_mb[cpi->common.frame_type][Q]*(Q + 128)) / 64))
            //if ( vp8_bits_per_mb[cpi->common.frame_type][i] >= ((vp8_bits_per_mb[cpi->common.frame_type][Q]*((2*Q)+96))/64) )
        {
            break;
        }
    }

    cpi->cyclic_refresh_q = i;

    // Only update for inter frames
    if (cpi->common.frame_type != KEY_FRAME)
    {
        // Cycle through the macro_block rows
        // MB loop to set local segmentation map
        for (i = cpi->cyclic_refresh_mode_index; i < mbs_in_frame; i++)
        {
            // If the MB is as a candidate for clean up then mark it for possible boost/refresh (segment 1)
            // The segment id may get reset to 0 later if the MB gets coded anything other than last frame 0,0
            // as only (last frame 0,0) MBs are eligable for refresh : that is to say Mbs likely to be background blocks.
            if (cpi->cyclic_refresh_map[i] == 0)
            {
                seg_map[i] = 1;
            }
            else
            {
                seg_map[i] = 0;

                // Skip blocks that have been refreshed recently anyway.
                if (cpi->cyclic_refresh_map[i] < 0)
                    //cpi->cyclic_refresh_map[i] = cpi->cyclic_refresh_map[i] / 16;
                    cpi->cyclic_refresh_map[i]++;
            }


            if (block_count > 0)
                block_count--;
            else
                break;

        }

        // If we have gone through the frame reset to the start
        cpi->cyclic_refresh_mode_index = i;

        if (cpi->cyclic_refresh_mode_index >= mbs_in_frame)
            cpi->cyclic_refresh_mode_index = 0;
    }

    // Set the segmentation Map
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    vp8_set_segmentation_map((VP8_PTR)cpi, seg_map);
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    // Activate segmentation.
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    vp8_enable_segmentation((VP8_PTR)cpi);
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    // Set up the quant segment data
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    feature_data[SEG_LVL_ALT_Q][0] = 0;
    feature_data[SEG_LVL_ALT_Q][1] = (cpi->cyclic_refresh_q - Q);
    feature_data[SEG_LVL_ALT_Q][2] = 0;
    feature_data[SEG_LVL_ALT_Q][3] = 0;
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    // Set up the loop segment data
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    feature_data[SEG_LVL_ALT_LF][0] = 0;
    feature_data[SEG_LVL_ALT_LF][1] = lf_adjustment;
    feature_data[SEG_LVL_ALT_LF][2] = 0;
    feature_data[SEG_LVL_ALT_LF][3] = 0;
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#if CONFIG_SEGFEATURES
    // Enable the loop and quant changes in the feature mask
    enable_segfeature(xd, 1, SEG_LVL_ALT_Q);
    enable_segfeature(xd, 1, SEG_LVL_ALT_LF);
#endif

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    // Initialise the feature data structure
    // SEGMENT_DELTADATA    0, SEGMENT_ABSDATA      1
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    vp8_set_segment_data((VP8_PTR)cpi, &feature_data[0][0], SEGMENT_DELTADATA);
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    // Delete sementation map
        vpx_free(seg_map);

    seg_map = 0;

}

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static void set_default_lf_deltas(VP8_COMP *cpi)
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{
    cpi->mb.e_mbd.mode_ref_lf_delta_enabled = 1;
    cpi->mb.e_mbd.mode_ref_lf_delta_update = 1;

    vpx_memset(cpi->mb.e_mbd.ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
    vpx_memset(cpi->mb.e_mbd.mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));

    // Test of ref frame deltas
    cpi->mb.e_mbd.ref_lf_deltas[INTRA_FRAME] = 2;
    cpi->mb.e_mbd.ref_lf_deltas[LAST_FRAME] = 0;
    cpi->mb.e_mbd.ref_lf_deltas[GOLDEN_FRAME] = -2;
    cpi->mb.e_mbd.ref_lf_deltas[ALTREF_FRAME] = -2;

    cpi->mb.e_mbd.mode_lf_deltas[0] = 4;               // BPRED
    cpi->mb.e_mbd.mode_lf_deltas[1] = -2;              // Zero
    cpi->mb.e_mbd.mode_lf_deltas[2] = 2;               // New mv
    cpi->mb.e_mbd.mode_lf_deltas[3] = 4;               // Split mv
}

void vp8_set_speed_features(VP8_COMP *cpi)
{
    SPEED_FEATURES *sf = &cpi->sf;
    int Mode = cpi->compressor_speed;
    int Speed = cpi->Speed;
    int i;
    VP8_COMMON *cm = &cpi->common;
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    int last_improved_quant = sf->improved_quant;
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    // Initialise default mode frequency sampling variables
    for (i = 0; i < MAX_MODES; i ++)
    {
        cpi->mode_check_freq[i] = 0;
        cpi->mode_test_hit_counts[i] = 0;
        cpi->mode_chosen_counts[i] = 0;
    }

    cpi->mbs_tested_so_far = 0;

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    // best quality defaults
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    sf->RD = 1;
    sf->search_method = NSTEP;
    sf->improved_quant = 1;
    sf->improved_dct = 1;
    sf->auto_filter = 1;
    sf->recode_loop = 1;
    sf->quarter_pixel_search = 1;
    sf->half_pixel_search = 1;
    sf->iterative_sub_pixel = 1;
    sf->optimize_coefficients = 1;
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    sf->use_fastquant_for_pick = 0;
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    sf->no_skip_block4x4_search = 1;
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    sf->first_step = 0;
    sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
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    sf->improved_mv_pred = 1;
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    // default thresholds to 0
    for (i = 0; i < MAX_MODES; i++)
        sf->thresh_mult[i] = 0;

    switch (Mode)
    {
#if !(CONFIG_REALTIME_ONLY)
    case 0: // best quality mode
        sf->thresh_mult[THR_ZEROMV   ] = 0;
        sf->thresh_mult[THR_ZEROG    ] = 0;
        sf->thresh_mult[THR_ZEROA    ] = 0;
        sf->thresh_mult[THR_NEARESTMV] = 0;
        sf->thresh_mult[THR_NEARESTG ] = 0;
        sf->thresh_mult[THR_NEARESTA ] = 0;
        sf->thresh_mult[THR_NEARMV   ] = 0;
        sf->thresh_mult[THR_NEARG    ] = 0;
        sf->thresh_mult[THR_NEARA    ] = 0;

        sf->thresh_mult[THR_DC       ] = 0;

        sf->thresh_mult[THR_V_PRED   ] = 1000;
        sf->thresh_mult[THR_H_PRED   ] = 1000;
        sf->thresh_mult[THR_B_PRED   ] = 2000;
        sf->thresh_mult[THR_TM       ] = 1000;

        sf->thresh_mult[THR_NEWMV    ] = 1000;
        sf->thresh_mult[THR_NEWG     ] = 1000;
        sf->thresh_mult[THR_NEWA     ] = 1000;

        sf->thresh_mult[THR_SPLITMV  ] = 2500;
        sf->thresh_mult[THR_SPLITG   ] = 5000;
        sf->thresh_mult[THR_SPLITA   ] = 5000;


        sf->first_step = 0;
        sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
        break;
    case 1:
    case 3:
        sf->thresh_mult[THR_NEARESTMV] = 0;
        sf->thresh_mult[THR_ZEROMV   ] = 0;
        sf->thresh_mult[THR_DC       ] = 0;
        sf->thresh_mult[THR_NEARMV   ] = 0;
        sf->thresh_mult[THR_V_PRED   ] = 1000;
        sf->thresh_mult[THR_H_PRED   ] = 1000;
        sf->thresh_mult[THR_B_PRED   ] = 2500;
        sf->thresh_mult[THR_TM       ] = 1000;

        sf->thresh_mult[THR_NEARESTG ] = 1000;
        sf->thresh_mult[THR_NEARESTA ] = 1000;

        sf->thresh_mult[THR_ZEROG    ] = 1000;
        sf->thresh_mult[THR_ZEROA    ] = 1000;
        sf->thresh_mult[THR_NEARG    ] = 1000;
        sf->thresh_mult[THR_NEARA    ] = 1000;

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#if 1
        sf->thresh_mult[THR_ZEROMV   ] = 0;
        sf->thresh_mult[THR_ZEROG    ] = 0;
        sf->thresh_mult[THR_ZEROA    ] = 0;
        sf->thresh_mult[THR_NEARESTMV] = 0;
        sf->thresh_mult[THR_NEARESTG ] = 0;
        sf->thresh_mult[THR_NEARESTA ] = 0;
        sf->thresh_mult[THR_NEARMV   ] = 0;
        sf->thresh_mult[THR_NEARG    ] = 0;
        sf->thresh_mult[THR_NEARA    ] = 0;

//        sf->thresh_mult[THR_DC       ] = 0;

//        sf->thresh_mult[THR_V_PRED   ] = 1000;
//        sf->thresh_mult[THR_H_PRED   ] = 1000;
//        sf->thresh_mult[THR_B_PRED   ] = 2000;
//        sf->thresh_mult[THR_TM       ] = 1000;

        sf->thresh_mult[THR_NEWMV    ] = 1000;
        sf->thresh_mult[THR_NEWG     ] = 1000;
        sf->thresh_mult[THR_NEWA     ] = 1000;

        sf->thresh_mult[THR_SPLITMV  ] = 1700;
        sf->thresh_mult[THR_SPLITG   ] = 4500;
        sf->thresh_mult[THR_SPLITA   ] = 4500;
#else
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        sf->thresh_mult[THR_NEWMV    ] = 1500;
        sf->thresh_mult[THR_NEWG     ] = 1500;
        sf->thresh_mult[THR_NEWA     ] = 1500;

        sf->thresh_mult[THR_SPLITMV  ] = 5000;
        sf->thresh_mult[THR_SPLITG   ] = 10000;
        sf->thresh_mult[THR_SPLITA   ] = 10000;
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#endif
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        if (Speed > 0)
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        {
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            /* Disable coefficient optimization above speed 0 */
            sf->optimize_coefficients = 0;
            sf->use_fastquant_for_pick = 1;
            sf->no_skip_block4x4_search = 0;
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            sf->first_step = 1;
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            cpi->mode_check_freq[THR_SPLITG] = 2;
            cpi->mode_check_freq[THR_SPLITA] = 2;
            cpi->mode_check_freq[THR_SPLITMV] = 0;
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        }

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        if (Speed > 1)
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        {
            cpi->mode_check_freq[THR_SPLITG] = 4;
            cpi->mode_check_freq[THR_SPLITA] = 4;
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            cpi->mode_check_freq[THR_SPLITMV] = 2;
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            sf->thresh_mult[THR_TM       ] = 1500;
            sf->thresh_mult[THR_V_PRED   ] = 1500;
            sf->thresh_mult[THR_H_PRED   ] = 1500;
            sf->thresh_mult[THR_B_PRED   ] = 5000;

            if (cpi->ref_frame_flags & VP8_LAST_FLAG)
            {
                sf->thresh_mult[THR_NEWMV    ] = 2000;
                sf->thresh_mult[THR_SPLITMV  ] = 10000;
            }

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                sf->thresh_mult[THR_NEARESTG ] = 1500;
                sf->thresh_mult[THR_ZEROG    ] = 1500;
                sf->thresh_mult[THR_NEARG    ] = 1500;
                sf->thresh_mult[THR_NEWG     ] = 2000;
                sf->thresh_mult[THR_SPLITG   ] = 20000;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                sf->thresh_mult[THR_NEARESTA ] = 1500;
                sf->thresh_mult[THR_ZEROA    ] = 1500;
                sf->thresh_mult[THR_NEARA    ] = 1500;
                sf->thresh_mult[THR_NEWA     ] = 2000;
                sf->thresh_mult[THR_SPLITA   ] = 20000;
            }
        }

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        if (Speed > 2)
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        {
            cpi->mode_check_freq[THR_SPLITG] = 15;
            cpi->mode_check_freq[THR_SPLITA] = 15;
            cpi->mode_check_freq[THR_SPLITMV] = 7;

            sf->thresh_mult[THR_TM       ] = 2000;
            sf->thresh_mult[THR_V_PRED   ] = 2000;
            sf->thresh_mult[THR_H_PRED   ] = 2000;
            sf->thresh_mult[THR_B_PRED   ] = 7500;

            if (cpi->ref_frame_flags & VP8_LAST_FLAG)
            {
                sf->thresh_mult[THR_NEWMV    ] = 2000;
                sf->thresh_mult[THR_SPLITMV  ] = 25000;
            }

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                sf->thresh_mult[THR_NEARESTG ] = 2000;
                sf->thresh_mult[THR_ZEROG    ] = 2000;
                sf->thresh_mult[THR_NEARG    ] = 2000;
                sf->thresh_mult[THR_NEWG     ] = 2500;
                sf->thresh_mult[THR_SPLITG   ] = 50000;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                sf->thresh_mult[THR_NEARESTA ] = 2000;
                sf->thresh_mult[THR_ZEROA    ] = 2000;
                sf->thresh_mult[THR_NEARA    ] = 2000;
                sf->thresh_mult[THR_NEWA     ] = 2500;
                sf->thresh_mult[THR_SPLITA   ] = 50000;
            }

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            sf->improved_quant = 0;
            sf->improved_dct = 0;

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            // Only do recode loop on key frames, golden frames and
            // alt ref frames
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            sf->recode_loop = 2;

        }

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        if (Speed > 3)
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        {
            sf->thresh_mult[THR_SPLITA  ] = INT_MAX;
            sf->thresh_mult[THR_SPLITG  ] = INT_MAX;
            sf->thresh_mult[THR_SPLITMV  ] = INT_MAX;

            cpi->mode_check_freq[THR_V_PRED] = 0;
            cpi->mode_check_freq[THR_H_PRED] = 0;
            cpi->mode_check_freq[THR_B_PRED] = 0;
            cpi->mode_check_freq[THR_NEARG] = 0;
            cpi->mode_check_freq[THR_NEWG] = 0;
            cpi->mode_check_freq[THR_NEARA] = 0;
            cpi->mode_check_freq[THR_NEWA] = 0;

            sf->auto_filter = 1;
            sf->recode_loop = 0; // recode loop off
            sf->RD = 0;         // Turn rd off
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        }

        if (Speed > 4)
        {
            sf->auto_filter = 0;                     // Faster selection of loop filter

            cpi->mode_check_freq[THR_V_PRED] = 2;
            cpi->mode_check_freq[THR_H_PRED] = 2;
            cpi->mode_check_freq[THR_B_PRED] = 2;

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                cpi->mode_check_freq[THR_NEARG] = 2;
                cpi->mode_check_freq[THR_NEWG] = 4;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                cpi->mode_check_freq[THR_NEARA] = 2;
                cpi->mode_check_freq[THR_NEWA] = 4;
            }

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            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
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            {
                sf->thresh_mult[THR_NEARESTG ] = 2000;
                sf->thresh_mult[THR_ZEROG    ] = 2000;
                sf->thresh_mult[THR_NEARG    ] = 2000;
                sf->thresh_mult[THR_NEWG     ] = 4000;
            }

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            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
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            {
                sf->thresh_mult[THR_NEARESTA ] = 2000;
                sf->thresh_mult[THR_ZEROA    ] = 2000;
                sf->thresh_mult[THR_NEARA    ] = 2000;
                sf->thresh_mult[THR_NEWA     ] = 4000;
            }
        }

        break;
#endif
    case 2:
        sf->optimize_coefficients = 0;
        sf->recode_loop = 0;
        sf->auto_filter = 1;
        sf->iterative_sub_pixel = 1;
        sf->thresh_mult[THR_NEARESTMV] = 0;
        sf->thresh_mult[THR_ZEROMV   ] = 0;
        sf->thresh_mult[THR_DC       ] = 0;
        sf->thresh_mult[THR_TM       ] = 0;
        sf->thresh_mult[THR_NEARMV   ] = 0;
        sf->thresh_mult[THR_V_PRED   ] = 1000;
        sf->thresh_mult[THR_H_PRED   ] = 1000;
        sf->thresh_mult[THR_B_PRED   ] = 2500;
        sf->thresh_mult[THR_NEARESTG ] = 1000;
        sf->thresh_mult[THR_ZEROG    ] = 1000;
        sf->thresh_mult[THR_NEARG    ] = 1000;
        sf->thresh_mult[THR_NEARESTA ] = 1000;
        sf->thresh_mult[THR_ZEROA    ] = 1000;
        sf->thresh_mult[THR_NEARA    ] = 1000;
        sf->thresh_mult[THR_NEWMV    ] = 2000;
        sf->thresh_mult[THR_NEWG     ] = 2000;
        sf->thresh_mult[THR_NEWA     ] = 2000;
        sf->thresh_mult[THR_SPLITMV  ] = 5000;
        sf->thresh_mult[THR_SPLITG   ] = 10000;
        sf->thresh_mult[THR_SPLITA   ] = 10000;
        sf->search_method = NSTEP;

        if (Speed > 0)
        {
            cpi->mode_check_freq[THR_SPLITG] = 4;
            cpi->mode_check_freq[THR_SPLITA] = 4;
            cpi->mode_check_freq[THR_SPLITMV] = 2;

            sf->thresh_mult[THR_DC       ] = 0;
            sf->thresh_mult[THR_TM       ] = 1000;
            sf->thresh_mult[THR_V_PRED   ] = 2000;
            sf->thresh_mult[THR_H_PRED   ] = 2000;
            sf->thresh_mult[THR_B_PRED   ] = 5000;

            if (cpi->ref_frame_flags & VP8_LAST_FLAG)
            {
                sf->thresh_mult[THR_NEARESTMV] = 0;
                sf->thresh_mult[THR_ZEROMV   ] = 0;
                sf->thresh_mult[THR_NEARMV   ] = 0;
                sf->thresh_mult[THR_NEWMV    ] = 2000;
                sf->thresh_mult[THR_SPLITMV  ] = 10000;
            }

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                sf->thresh_mult[THR_NEARESTG ] = 1000;
                sf->thresh_mult[THR_ZEROG    ] = 1000;
                sf->thresh_mult[THR_NEARG    ] = 1000;
                sf->thresh_mult[THR_NEWG     ] = 2000;
                sf->thresh_mult[THR_SPLITG   ] = 20000;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                sf->thresh_mult[THR_NEARESTA ] = 1000;
                sf->thresh_mult[THR_ZEROA    ] = 1000;
                sf->thresh_mult[THR_NEARA    ] = 1000;
                sf->thresh_mult[THR_NEWA     ] = 2000;
                sf->thresh_mult[THR_SPLITA   ] = 20000;
            }

            sf->improved_quant = 0;
            sf->improved_dct = 0;
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            sf->use_fastquant_for_pick = 1;
            sf->no_skip_block4x4_search = 0;
            sf->first_step = 1;
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        }

        if (Speed > 1)
        {
            cpi->mode_check_freq[THR_SPLITMV] = 7;
            cpi->mode_check_freq[THR_SPLITG] = 15;
            cpi->mode_check_freq[THR_SPLITA] = 15;

            sf->thresh_mult[THR_TM       ] = 2000;
            sf->thresh_mult[THR_V_PRED   ] = 2000;
            sf->thresh_mult[THR_H_PRED   ] = 2000;
            sf->thresh_mult[THR_B_PRED   ] = 5000;

            if (cpi->ref_frame_flags & VP8_LAST_FLAG)
            {
                sf->thresh_mult[THR_NEWMV    ] = 2000;
                sf->thresh_mult[THR_SPLITMV  ] = 25000;
            }

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                sf->thresh_mult[THR_NEARESTG ] = 2000;
                sf->thresh_mult[THR_ZEROG    ] = 2000;
                sf->thresh_mult[THR_NEARG    ] = 2000;
                sf->thresh_mult[THR_NEWG     ] = 2500;
                sf->thresh_mult[THR_SPLITG   ] = 50000;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                sf->thresh_mult[THR_NEARESTA ] = 2000;
                sf->thresh_mult[THR_ZEROA    ] = 2000;
                sf->thresh_mult[THR_NEARA    ] = 2000;
                sf->thresh_mult[THR_NEWA     ] = 2500;
                sf->thresh_mult[THR_SPLITA   ] = 50000;
            }

        }

        if (Speed > 2)
        {
            sf->auto_filter = 0;                     // Faster selection of loop filter

            cpi->mode_check_freq[THR_V_PRED] = 2;
            cpi->mode_check_freq[THR_H_PRED] = 2;
            cpi->mode_check_freq[THR_B_PRED] = 2;

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                cpi->mode_check_freq[THR_NEARG] = 2;
                cpi->mode_check_freq[THR_NEWG] = 4;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                cpi->mode_check_freq[THR_NEARA] = 2;
                cpi->mode_check_freq[THR_NEWA] = 4;
            }

            sf->thresh_mult[THR_SPLITMV  ] = INT_MAX;
            sf->thresh_mult[THR_SPLITG  ] = INT_MAX;
            sf->thresh_mult[THR_SPLITA  ] = INT_MAX;

        }

        if (Speed > 3)
        {
            sf->RD = 0;

            sf->auto_filter = 1;
        }

        if (Speed > 4)
        {
            sf->auto_filter = 0;                     // Faster selection of loop filter

            sf->search_method = HEX;
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            //sf->search_method = DIAMOND;

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            sf->iterative_sub_pixel = 0;
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            cpi->mode_check_freq[THR_V_PRED] = 4;
            cpi->mode_check_freq[THR_H_PRED] = 4;
            cpi->mode_check_freq[THR_B_PRED] = 4;

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                cpi->mode_check_freq[THR_NEARG] = 2;
                cpi->mode_check_freq[THR_NEWG] = 4;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                cpi->mode_check_freq[THR_NEARA] = 2;
                cpi->mode_check_freq[THR_NEWA] = 4;
            }

            sf->thresh_mult[THR_TM       ] = 2000;
            sf->thresh_mult[THR_B_PRED   ] = 5000;

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                sf->thresh_mult[THR_NEARESTG ] = 2000;
                sf->thresh_mult[THR_ZEROG    ] = 2000;
                sf->thresh_mult[THR_NEARG    ] = 2000;
                sf->thresh_mult[THR_NEWG     ] = 4000;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                sf->thresh_mult[THR_NEARESTA ] = 2000;
                sf->thresh_mult[THR_ZEROA    ] = 2000;
                sf->thresh_mult[THR_NEARA    ] = 2000;
                sf->thresh_mult[THR_NEWA     ] = 4000;
            }
        }

        if (Speed > 5)
        {
            // Disable split MB intra prediction mode
            sf->thresh_mult[THR_B_PRED] = INT_MAX;
        }

        if (Speed > 6)
        {
            unsigned int i, sum = 0;
            unsigned int total_mbs = cm->MBs;
            int thresh;
            int total_skip;

            int min = 2000;

            if (cpi->oxcf.encode_breakout > 2000)
                min = cpi->oxcf.encode_breakout;

            min >>= 7;

            for (i = 0; i < min; i++)
            {
                sum += cpi->error_bins[i];
            }

            total_skip = sum;
            sum = 0;

            // i starts from 2 to make sure thresh started from 2048
            for (; i < 1024; i++)
            {
                sum += cpi->error_bins[i];

                if (10 * sum >= (unsigned int)(cpi->Speed - 6)*(total_mbs - total_skip))
                    break;
            }

            i--;
            thresh = (i << 7);

            if (thresh < 2000)
                thresh = 2000;

            if (cpi->ref_frame_flags & VP8_LAST_FLAG)
            {
                sf->thresh_mult[THR_NEWMV] = thresh;
                sf->thresh_mult[THR_NEARESTMV ] = thresh >> 1;
                sf->thresh_mult[THR_NEARMV    ] = thresh >> 1;
            }

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                sf->thresh_mult[THR_NEWG] = thresh << 1;
                sf->thresh_mult[THR_NEARESTG ] = thresh;
                sf->thresh_mult[THR_NEARG    ] = thresh;
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                sf->thresh_mult[THR_NEWA] = thresh << 1;
                sf->thresh_mult[THR_NEARESTA ] = thresh;
                sf->thresh_mult[THR_NEARA    ] = thresh;
            }

            // Disable other intra prediction modes
            sf->thresh_mult[THR_TM] = INT_MAX;
            sf->thresh_mult[THR_V_PRED] = INT_MAX;
            sf->thresh_mult[THR_H_PRED] = INT_MAX;

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            sf->improved_mv_pred = 0;
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        }

        if (Speed > 8)
        {
            sf->quarter_pixel_search = 0;
        }

        if (Speed > 9)
        {
            int Tmp = cpi->Speed - 8;

            if (Tmp > 4)
                Tmp = 4;

            if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
            {
                cpi->mode_check_freq[THR_ZEROG] = 1 << (Tmp - 1);
                cpi->mode_check_freq[THR_NEARESTG] = 1 << (Tmp - 1);
                cpi->mode_check_freq[THR_NEARG] = 1 << Tmp;
                cpi->mode_check_freq[THR_NEWG] = 1 << (Tmp + 1);
            }

            if (cpi->ref_frame_flags & VP8_ALT_FLAG)
            {
                cpi->mode_check_freq[THR_ZEROA] = 1 << (Tmp - 1);
                cpi->mode_check_freq[THR_NEARESTA] = 1 << (Tmp - 1);
                cpi->mode_check_freq[THR_NEARA] = 1 << Tmp;
                cpi->mode_check_freq[THR_NEWA] = 1 << (Tmp + 1);
            }

            cpi->mode_check_freq[THR_NEWMV] = 1 << (Tmp - 1);
        }

        cm->filter_type = NORMAL_LOOPFILTER;

        if (Speed >= 14)
            cm->filter_type = SIMPLE_LOOPFILTER;

        if (Speed >= 15)
        {
            sf->half_pixel_search = 0;        // This has a big hit on quality. Last resort
        }

        vpx_memset(cpi->error_bins, 0, sizeof(cpi->error_bins));

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    }; /* switch */

    /* disable frame modes if flags not set */
    if (!(cpi->ref_frame_flags & VP8_LAST_FLAG))
    {
        sf->thresh_mult[THR_NEWMV    ] = INT_MAX;
        sf->thresh_mult[THR_NEARESTMV] = INT_MAX;
        sf->thresh_mult[THR_ZEROMV   ] = INT_MAX;
        sf->thresh_mult[THR_NEARMV   ] = INT_MAX;
        sf->thresh_mult[THR_SPLITMV  ] = INT_MAX;
    }

    if (!(cpi->ref_frame_flags & VP8_GOLD_FLAG))
    {
        sf->thresh_mult[THR_NEARESTG ] = INT_MAX;
        sf->thresh_mult[THR_ZEROG    ] = INT_MAX;
        sf->thresh_mult[THR_NEARG    ] = INT_MAX;
        sf->thresh_mult[THR_NEWG     ] = INT_MAX;
        sf->thresh_mult[THR_SPLITG   ] = INT_MAX;
    }

    if (!(cpi->ref_frame_flags & VP8_ALT_FLAG))
    {
        sf->thresh_mult[THR_NEARESTA ] = INT_MAX;
        sf->thresh_mult[THR_ZEROA    ] = INT_MAX;
        sf->thresh_mult[THR_NEARA    ] = INT_MAX;
        sf->thresh_mult[THR_NEWA     ] = INT_MAX;
        sf->thresh_mult[THR_SPLITA   ] = INT_MAX;
    }

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    // Slow quant, dct and trellis not worthwhile for first pass
    // so make sure they are always turned off.
    if ( cpi->pass == 1 )
    {
        sf->improved_quant = 0;
        sf->optimize_coefficients = 0;
        sf->improved_dct = 0;
    }

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    if (cpi->sf.search_method == NSTEP)
    {
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        vp8_init3smotion_compensation(&cpi->mb, cm->yv12_fb[cm->lst_fb_idx].y_stride);
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    }
    else if (cpi->sf.search_method == DIAMOND)
    {
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        vp8_init_dsmotion_compensation(&cpi->mb, cm->yv12_fb[cm->lst_fb_idx].y_stride);
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    }

    if (cpi->sf.improved_dct)
    {
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#if CONFIG_T8X8
        cpi->mb.vp8_short_fdct8x8 = FDCT_INVOKE(&cpi->rtcd.fdct, short8x8);
#endif
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        cpi->mb.vp8_short_fdct8x4 = FDCT_INVOKE(&cpi->rtcd.fdct, short8x4);
        cpi->mb.vp8_short_fdct4x4 = FDCT_INVOKE(&cpi->rtcd.fdct, short4x4);
    }
    else
    {
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#if CONFIG_T8X8
        cpi->mb.vp8_short_fdct8x8 = FDCT_INVOKE(&cpi->rtcd.fdct, short8x8);
#endif
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        cpi->mb.vp8_short_fdct8x4   = FDCT_INVOKE(&cpi->rtcd.fdct, fast8x4);
        cpi->mb.vp8_short_fdct4x4   = FDCT_INVOKE(&cpi->rtcd.fdct, fast4x4);
    }

    cpi->mb.short_walsh4x4 = FDCT_INVOKE(&cpi->rtcd.fdct, walsh_short4x4);
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#if CONFIG_T8X8
    cpi->mb.short_fhaar2x2 = FDCT_INVOKE(&cpi->rtcd.fdct, haar_short2x2);
#endif
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    if (cpi->sf.improved_quant)
    {
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        cpi->mb.quantize_b      = QUANTIZE_INVOKE(&cpi->rtcd.quantize,
                                                  quantb);
        cpi->mb.quantize_b_pair = QUANTIZE_INVOKE(&cpi->rtcd.quantize,
                                                  quantb_pair);
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#if CONFIG_T8X8
        cpi->mb.quantize_b_8x8  = QUANTIZE_INVOKE(&cpi->rtcd.quantize, quantb_8x8);
        cpi->mb.quantize_b_2x2  = QUANTIZE_INVOKE(&cpi->rtcd.quantize, quantb_2x2);
#endif
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    }
    else
    {
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        cpi->mb.quantize_b      = QUANTIZE_INVOKE(&cpi->rtcd.quantize,
                                                  fastquantb);
        cpi->mb.quantize_b_pair = QUANTIZE_INVOKE(&cpi->rtcd.quantize,
                                                  fastquantb_pair);
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#if CONFIG_T8X8
        cpi->mb.quantize_b_8x8  = QUANTIZE_INVOKE(&cpi->rtcd.quantize, fastquantb_8x8);
        cpi->mb.quantize_b_2x2  = QUANTIZE_INVOKE(&cpi->rtcd.quantize, fastquantb_2x2);
#endif
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    }
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    if (cpi->sf.improved_quant != last_improved_quant)
        vp8cx_init_quantizer(cpi);
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#if CONFIG_RUNTIME_CPU_DETECT
    cpi->mb.e_mbd.rtcd = &cpi->common.rtcd;
#endif

    if (cpi->sf.iterative_sub_pixel == 1)
    {
        cpi->find_fractional_mv_step = vp8_find_best_sub_pixel_step_iteratively;
    }
    else if (cpi->sf.quarter_pixel_search)
    {
        cpi->find_fractional_mv_step = vp8_find_best_sub_pixel_step;
    }
    else if (cpi->sf.half_pixel_search)
    {
        cpi->find_fractional_mv_step = vp8_find_best_half_pixel_step;
    }
    else
    {
        cpi->find_fractional_mv_step = vp8_skip_fractional_mv_step;
    }

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    if (cpi->sf.optimize_coefficients == 1 && cpi->pass!=1)
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        cpi->mb.optimize = 1;
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    else
        cpi->mb.optimize = 0;

    if (cpi->common.full_pixel)
        cpi->find_fractional_mv_step = vp8_skip_fractional_mv_step;

#ifdef SPEEDSTATS
    frames_at_speed[cpi->Speed]++;
#endif
}
static void alloc_raw_frame_buffers(VP8_COMP *cpi)
{
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    int width = (cpi->oxcf.Width + 15) & ~15;
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    int height = (cpi->oxcf.Height + 15) & ~15;
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    cpi->lookahead = vp8_lookahead_init(cpi->oxcf.Width, cpi->oxcf.Height,
                                        cpi->oxcf.lag_in_frames);
    if(!cpi->lookahead)
        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
                           "Failed to allocate lag buffers");
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#if VP8_TEMPORAL_ALT_REF

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    if (vp8_yv12_alloc_frame_buffer(&cpi->alt_ref_buffer,
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                                    width, height, VP8BORDERINPIXELS))
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        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
                           "Failed to allocate altref buffer");

#endif
}
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static int vp8_alloc_partition_data(VP8_COMP *cpi)
{
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        vpx_free(cpi->mb.pip);

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    cpi->mb.pip = vpx_calloc((cpi->common.mb_cols + 1) *
                                (cpi->common.mb_rows + 1),
                                sizeof(PARTITION_INFO));
    if(!cpi->mb.pip)
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        return 1;
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    cpi->mb.pi = cpi->mb.pip + cpi->common.mode_info_stride + 1;

    return 0;
}

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void vp8_alloc_compressor_data(VP8_COMP *cpi)
{
    VP8_COMMON *cm = & cpi->common;

    int width = cm->Width;
    int height = cm->Height;

    if (vp8_alloc_frame_buffers(cm, width, height))
        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
                           "Failed to allocate frame buffers");

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    if (vp8_alloc_partition_data(cpi))
        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
                           "Failed to allocate partition data");


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    if ((width & 0xf) != 0)
        width += 16 - (width & 0xf);

    if ((height & 0xf) != 0)
        height += 16 - (height & 0xf);


    if (vp8_yv12_alloc_frame_buffer(&cpi->last_frame_uf,
                                    width, height, VP8BORDERINPIXELS))
        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
                           "Failed to allocate last frame buffer");

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    if (vp8_yv12_alloc_frame_buffer(&cpi->scaled_source,
                                    width, height, VP8BORDERINPIXELS))
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        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
                           "Failed to allocate scaled source buffer");


        vpx_free(cpi->tok);

    {
        unsigned int tokens = cm->mb_rows * cm->mb_cols * 24 * 16;

        CHECK_MEM_ERROR(cpi->tok, vpx_calloc(tokens, sizeof(*cpi->tok)));
    }

    // Data used for real time vc mode to see if gf needs refreshing
    cpi->inter_zz_count = 0;
    cpi->gf_bad_count = 0;
    cpi->gf_update_recommended = 0;
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    // Structures used to minitor GF usage
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    vpx_free(cpi->gf_active_flags);
    CHECK_MEM_ERROR(cpi->gf_active_flags,
                    vpx_calloc(1, cm->mb_rows * cm->mb_cols));
    cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
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    vpx_free(cpi->mb_activity_map);
    CHECK_MEM_ERROR(cpi->mb_activity_map,
                    vpx_calloc(sizeof(unsigned int),
                    cm->mb_rows * cm->mb_cols));
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    vpx_free(cpi->mb_norm_activity_map);
    CHECK_MEM_ERROR(cpi->mb_norm_activity_map,
                    vpx_calloc(sizeof(unsigned int),
                    cm->mb_rows * cm->mb_cols));
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#if !(CONFIG_REALTIME_ONLY)
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        vpx_free(cpi->twopass.total_stats);
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    cpi->twopass.total_stats = vpx_calloc(1, sizeof(FIRSTPASS_STATS));
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        vpx_free(cpi->twopass.this_frame_stats);
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    cpi->twopass.this_frame_stats = vpx_calloc(1, sizeof(FIRSTPASS_STATS));
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    if(!cpi->twopass.total_stats || !cpi->twopass.this_frame_stats)
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        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
                           "Failed to allocate firstpass stats");
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#endif
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