LCOV - code coverage report
Current view: top level - media/libvpx/libvpx/vp8/encoder - onyx_if.c (source / functions) Hit Total Coverage
Test: output.info Lines: 0 2242 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 58 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
       3             :  *
       4             :  *  Use of this source code is governed by a BSD-style license
       5             :  *  that can be found in the LICENSE file in the root of the source
       6             :  *  tree. An additional intellectual property rights grant can be found
       7             :  *  in the file PATENTS.  All contributing project authors may
       8             :  *  be found in the AUTHORS file in the root of the source tree.
       9             :  */
      10             : 
      11             : #include "vpx_config.h"
      12             : #include "./vpx_scale_rtcd.h"
      13             : #include "./vpx_dsp_rtcd.h"
      14             : #include "./vp8_rtcd.h"
      15             : #include "vp8/common/onyxc_int.h"
      16             : #include "vp8/common/blockd.h"
      17             : #include "onyx_int.h"
      18             : #include "vp8/common/systemdependent.h"
      19             : #include "vp8/encoder/quantize.h"
      20             : #include "vp8/common/alloccommon.h"
      21             : #include "mcomp.h"
      22             : #include "firstpass.h"
      23             : #include "vpx_dsp/psnr.h"
      24             : #include "vpx_scale/vpx_scale.h"
      25             : #include "vp8/common/extend.h"
      26             : #include "ratectrl.h"
      27             : #include "vp8/common/quant_common.h"
      28             : #include "segmentation.h"
      29             : #if CONFIG_POSTPROC
      30             : #include "vp8/common/postproc.h"
      31             : #endif
      32             : #include "vpx_mem/vpx_mem.h"
      33             : #include "vp8/common/reconintra.h"
      34             : #include "vp8/common/swapyv12buffer.h"
      35             : #include "vp8/common/threading.h"
      36             : #include "vpx_ports/system_state.h"
      37             : #include "vpx_ports/vpx_timer.h"
      38             : #if ARCH_ARM
      39             : #include "vpx_ports/arm.h"
      40             : #endif
      41             : #if CONFIG_MULTI_RES_ENCODING
      42             : #include "mr_dissim.h"
      43             : #endif
      44             : #include "encodeframe.h"
      45             : 
      46             : #include <math.h>
      47             : #include <stdio.h>
      48             : #include <limits.h>
      49             : 
      50             : #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
      51             : extern int vp8_update_coef_context(VP8_COMP *cpi);
      52             : extern void vp8_update_coef_probs(VP8_COMP *cpi);
      53             : #endif
      54             : 
      55             : extern void vp8cx_pick_filter_level_fast(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi);
      56             : extern void vp8cx_set_alt_lf_level(VP8_COMP *cpi, int filt_val);
      57             : extern void vp8cx_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi);
      58             : 
      59             : extern void vp8_deblock_frame(YV12_BUFFER_CONFIG *source,
      60             :                               YV12_BUFFER_CONFIG *post, int filt_lvl,
      61             :                               int low_var_thresh, int flag);
      62             : extern void print_parms(VP8_CONFIG *ocf, char *filenam);
      63             : extern unsigned int vp8_get_processor_freq();
      64             : extern void print_tree_update_probs();
      65             : extern int vp8cx_create_encoder_threads(VP8_COMP *cpi);
      66             : extern void vp8cx_remove_encoder_threads(VP8_COMP *cpi);
      67             : 
      68             : int vp8_estimate_entropy_savings(VP8_COMP *cpi);
      69             : 
      70             : int vp8_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest);
      71             : 
      72             : extern void vp8_temporal_filter_prepare_c(VP8_COMP *cpi, int distance);
      73             : 
      74             : static void set_default_lf_deltas(VP8_COMP *cpi);
      75             : 
      76             : extern const int vp8_gf_interval_table[101];
      77             : 
      78             : #if CONFIG_INTERNAL_STATS
      79             : #include "math.h"
      80             : #include "vpx_dsp/ssim.h"
      81             : #endif
      82             : 
      83             : #ifdef OUTPUT_YUV_SRC
      84             : FILE *yuv_file;
      85             : #endif
      86             : #ifdef OUTPUT_YUV_DENOISED
      87             : FILE *yuv_denoised_file;
      88             : #endif
      89             : 
      90             : #if 0
      91             : FILE *framepsnr;
      92             : FILE *kf_list;
      93             : FILE *keyfile;
      94             : #endif
      95             : 
      96             : #if 0
      97             : extern int skip_true_count;
      98             : extern int skip_false_count;
      99             : #endif
     100             : 
     101             : #ifdef VP8_ENTROPY_STATS
     102             : extern int intra_mode_stats[10][10][10];
     103             : #endif
     104             : 
     105             : #ifdef SPEEDSTATS
     106             : unsigned int frames_at_speed[16] = { 0, 0, 0, 0, 0, 0, 0, 0,
     107             :                                      0, 0, 0, 0, 0, 0, 0, 0 };
     108             : unsigned int tot_pm = 0;
     109             : unsigned int cnt_pm = 0;
     110             : unsigned int tot_ef = 0;
     111             : unsigned int cnt_ef = 0;
     112             : #endif
     113             : 
     114             : #ifdef MODE_STATS
     115             : extern unsigned __int64 Sectionbits[50];
     116             : extern int y_modes[5];
     117             : extern int uv_modes[4];
     118             : extern int b_modes[10];
     119             : 
     120             : extern int inter_y_modes[10];
     121             : extern int inter_uv_modes[4];
     122             : extern unsigned int inter_b_modes[15];
     123             : #endif
     124             : 
     125             : extern const int vp8_bits_per_mb[2][QINDEX_RANGE];
     126             : 
     127             : extern const int qrounding_factors[129];
     128             : extern const int qzbin_factors[129];
     129             : extern void vp8cx_init_quantizer(VP8_COMP *cpi);
     130             : extern const int vp8cx_base_skip_false_prob[128];
     131             : 
     132             : /* Tables relating active max Q to active min Q */
     133             : static const unsigned char kf_low_motion_minq[QINDEX_RANGE] = {
     134             :   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     135             :   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     136             :   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,
     137             :   1,  1,  1,  2,  2,  2,  2,  3,  3,  3,  3,  3,  3,  4,  4,  4,  5,  5,  5,
     138             :   5,  5,  6,  6,  6,  6,  7,  7,  8,  8,  8,  8,  9,  9,  10, 10, 10, 10, 11,
     139             :   11, 11, 11, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16,
     140             :   17, 17, 18, 18, 18, 18, 19, 20, 20, 21, 21, 22, 23, 23
     141             : };
     142             : static const unsigned char kf_high_motion_minq[QINDEX_RANGE] = {
     143             :   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     144             :   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,
     145             :   1,  1,  2,  2,  2,  2,  3,  3,  3,  3,  3,  3,  3,  3,  4,  4,  4,  4,  5,
     146             :   5,  5,  5,  5,  5,  6,  6,  6,  6,  7,  7,  8,  8,  8,  8,  9,  9,  10, 10,
     147             :   10, 10, 11, 11, 11, 11, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 15, 15, 16,
     148             :   16, 16, 16, 17, 17, 18, 18, 18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21,
     149             :   22, 22, 23, 23, 24, 25, 25, 26, 26, 27, 28, 28, 29, 30
     150             : };
     151             : static const unsigned char gf_low_motion_minq[QINDEX_RANGE] = {
     152             :   0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  1,  1,  2,  2,  2,  2,  3,  3,  3,
     153             :   3,  4,  4,  4,  4,  5,  5,  5,  5,  6,  6,  6,  6,  7,  7,  7,  7,  8,  8,
     154             :   8,  8,  9,  9,  9,  9,  10, 10, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15,
     155             :   15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 24,
     156             :   25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 32, 32, 33, 33, 34,
     157             :   34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, 40, 40, 41, 41, 42, 42, 43, 44,
     158             :   45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58
     159             : };
     160             : static const unsigned char gf_mid_motion_minq[QINDEX_RANGE] = {
     161             :   0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  2,  2,  3,  3,  3,  4,  4,  4,  5,
     162             :   5,  5,  6,  6,  6,  7,  7,  7,  8,  8,  8,  9,  9,  9,  10, 10, 10, 10, 11,
     163             :   11, 11, 12, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 16, 16, 17, 17, 18,
     164             :   18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
     165             :   28, 28, 29, 29, 30, 30, 31, 31, 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37,
     166             :   37, 38, 39, 39, 40, 40, 41, 41, 42, 42, 43, 43, 44, 45, 46, 47, 48, 49, 50,
     167             :   51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64
     168             : };
     169             : static const unsigned char gf_high_motion_minq[QINDEX_RANGE] = {
     170             :   0,  0,  0,  0,  1,  1,  1,  1,  1,  2,  2,  2,  3,  3,  3,  4,  4,  4,  5,
     171             :   5,  5,  6,  6,  6,  7,  7,  7,  8,  8,  8,  9,  9,  9,  10, 10, 10, 11, 11,
     172             :   12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21,
     173             :   21, 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30,
     174             :   31, 31, 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, 40,
     175             :   40, 41, 41, 42, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
     176             :   57, 58, 59, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80
     177             : };
     178             : static const unsigned char inter_minq[QINDEX_RANGE] = {
     179             :   0,  0,  1,  1,  2,  3,  3,  4,  4,  5,  6,  6,  7,  8,  8,  9,  9,  10, 11,
     180             :   11, 12, 13, 13, 14, 15, 15, 16, 17, 17, 18, 19, 20, 20, 21, 22, 22, 23, 24,
     181             :   24, 25, 26, 27, 27, 28, 29, 30, 30, 31, 32, 33, 33, 34, 35, 36, 36, 37, 38,
     182             :   39, 39, 40, 41, 42, 42, 43, 44, 45, 46, 46, 47, 48, 49, 50, 50, 51, 52, 53,
     183             :   54, 55, 55, 56, 57, 58, 59, 60, 60, 61, 62, 63, 64, 65, 66, 67, 67, 68, 69,
     184             :   70, 71, 72, 73, 74, 75, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 86,
     185             :   87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100
     186             : };
     187             : 
     188             : #ifdef PACKET_TESTING
     189             : extern FILE *vpxlogc;
     190             : #endif
     191             : 
     192           0 : static void save_layer_context(VP8_COMP *cpi) {
     193           0 :   LAYER_CONTEXT *lc = &cpi->layer_context[cpi->current_layer];
     194             : 
     195             :   /* Save layer dependent coding state */
     196           0 :   lc->target_bandwidth = cpi->target_bandwidth;
     197           0 :   lc->starting_buffer_level = cpi->oxcf.starting_buffer_level;
     198           0 :   lc->optimal_buffer_level = cpi->oxcf.optimal_buffer_level;
     199           0 :   lc->maximum_buffer_size = cpi->oxcf.maximum_buffer_size;
     200           0 :   lc->starting_buffer_level_in_ms = cpi->oxcf.starting_buffer_level_in_ms;
     201           0 :   lc->optimal_buffer_level_in_ms = cpi->oxcf.optimal_buffer_level_in_ms;
     202           0 :   lc->maximum_buffer_size_in_ms = cpi->oxcf.maximum_buffer_size_in_ms;
     203           0 :   lc->buffer_level = cpi->buffer_level;
     204           0 :   lc->bits_off_target = cpi->bits_off_target;
     205           0 :   lc->total_actual_bits = cpi->total_actual_bits;
     206           0 :   lc->worst_quality = cpi->worst_quality;
     207           0 :   lc->active_worst_quality = cpi->active_worst_quality;
     208           0 :   lc->best_quality = cpi->best_quality;
     209           0 :   lc->active_best_quality = cpi->active_best_quality;
     210           0 :   lc->ni_av_qi = cpi->ni_av_qi;
     211           0 :   lc->ni_tot_qi = cpi->ni_tot_qi;
     212           0 :   lc->ni_frames = cpi->ni_frames;
     213           0 :   lc->avg_frame_qindex = cpi->avg_frame_qindex;
     214           0 :   lc->rate_correction_factor = cpi->rate_correction_factor;
     215           0 :   lc->key_frame_rate_correction_factor = cpi->key_frame_rate_correction_factor;
     216           0 :   lc->gf_rate_correction_factor = cpi->gf_rate_correction_factor;
     217           0 :   lc->zbin_over_quant = cpi->mb.zbin_over_quant;
     218           0 :   lc->inter_frame_target = cpi->inter_frame_target;
     219           0 :   lc->total_byte_count = cpi->total_byte_count;
     220           0 :   lc->filter_level = cpi->common.filter_level;
     221             : 
     222           0 :   lc->last_frame_percent_intra = cpi->last_frame_percent_intra;
     223             : 
     224           0 :   memcpy(lc->count_mb_ref_frame_usage, cpi->mb.count_mb_ref_frame_usage,
     225             :          sizeof(cpi->mb.count_mb_ref_frame_usage));
     226           0 : }
     227             : 
     228           0 : static void restore_layer_context(VP8_COMP *cpi, const int layer) {
     229           0 :   LAYER_CONTEXT *lc = &cpi->layer_context[layer];
     230             : 
     231             :   /* Restore layer dependent coding state */
     232           0 :   cpi->current_layer = layer;
     233           0 :   cpi->target_bandwidth = lc->target_bandwidth;
     234           0 :   cpi->oxcf.target_bandwidth = lc->target_bandwidth;
     235           0 :   cpi->oxcf.starting_buffer_level = lc->starting_buffer_level;
     236           0 :   cpi->oxcf.optimal_buffer_level = lc->optimal_buffer_level;
     237           0 :   cpi->oxcf.maximum_buffer_size = lc->maximum_buffer_size;
     238           0 :   cpi->oxcf.starting_buffer_level_in_ms = lc->starting_buffer_level_in_ms;
     239           0 :   cpi->oxcf.optimal_buffer_level_in_ms = lc->optimal_buffer_level_in_ms;
     240           0 :   cpi->oxcf.maximum_buffer_size_in_ms = lc->maximum_buffer_size_in_ms;
     241           0 :   cpi->buffer_level = lc->buffer_level;
     242           0 :   cpi->bits_off_target = lc->bits_off_target;
     243           0 :   cpi->total_actual_bits = lc->total_actual_bits;
     244           0 :   cpi->active_worst_quality = lc->active_worst_quality;
     245           0 :   cpi->active_best_quality = lc->active_best_quality;
     246           0 :   cpi->ni_av_qi = lc->ni_av_qi;
     247           0 :   cpi->ni_tot_qi = lc->ni_tot_qi;
     248           0 :   cpi->ni_frames = lc->ni_frames;
     249           0 :   cpi->avg_frame_qindex = lc->avg_frame_qindex;
     250           0 :   cpi->rate_correction_factor = lc->rate_correction_factor;
     251           0 :   cpi->key_frame_rate_correction_factor = lc->key_frame_rate_correction_factor;
     252           0 :   cpi->gf_rate_correction_factor = lc->gf_rate_correction_factor;
     253           0 :   cpi->mb.zbin_over_quant = lc->zbin_over_quant;
     254           0 :   cpi->inter_frame_target = lc->inter_frame_target;
     255           0 :   cpi->total_byte_count = lc->total_byte_count;
     256           0 :   cpi->common.filter_level = lc->filter_level;
     257             : 
     258           0 :   cpi->last_frame_percent_intra = lc->last_frame_percent_intra;
     259             : 
     260           0 :   memcpy(cpi->mb.count_mb_ref_frame_usage, lc->count_mb_ref_frame_usage,
     261             :          sizeof(cpi->mb.count_mb_ref_frame_usage));
     262           0 : }
     263             : 
     264           0 : static int rescale(int val, int num, int denom) {
     265           0 :   int64_t llnum = num;
     266           0 :   int64_t llden = denom;
     267           0 :   int64_t llval = val;
     268             : 
     269           0 :   return (int)(llval * llnum / llden);
     270             : }
     271             : 
     272           0 : static void init_temporal_layer_context(VP8_COMP *cpi, VP8_CONFIG *oxcf,
     273             :                                         const int layer,
     274             :                                         double prev_layer_framerate) {
     275           0 :   LAYER_CONTEXT *lc = &cpi->layer_context[layer];
     276             : 
     277           0 :   lc->framerate = cpi->output_framerate / cpi->oxcf.rate_decimator[layer];
     278           0 :   lc->target_bandwidth = cpi->oxcf.target_bitrate[layer] * 1000;
     279             : 
     280           0 :   lc->starting_buffer_level_in_ms = oxcf->starting_buffer_level;
     281           0 :   lc->optimal_buffer_level_in_ms = oxcf->optimal_buffer_level;
     282           0 :   lc->maximum_buffer_size_in_ms = oxcf->maximum_buffer_size;
     283             : 
     284           0 :   lc->starting_buffer_level =
     285           0 :       rescale((int)(oxcf->starting_buffer_level), lc->target_bandwidth, 1000);
     286             : 
     287           0 :   if (oxcf->optimal_buffer_level == 0) {
     288           0 :     lc->optimal_buffer_level = lc->target_bandwidth / 8;
     289             :   } else {
     290           0 :     lc->optimal_buffer_level =
     291           0 :         rescale((int)(oxcf->optimal_buffer_level), lc->target_bandwidth, 1000);
     292             :   }
     293             : 
     294           0 :   if (oxcf->maximum_buffer_size == 0) {
     295           0 :     lc->maximum_buffer_size = lc->target_bandwidth / 8;
     296             :   } else {
     297           0 :     lc->maximum_buffer_size =
     298           0 :         rescale((int)(oxcf->maximum_buffer_size), lc->target_bandwidth, 1000);
     299             :   }
     300             : 
     301             :   /* Work out the average size of a frame within this layer */
     302           0 :   if (layer > 0) {
     303           0 :     lc->avg_frame_size_for_layer =
     304           0 :         (int)((cpi->oxcf.target_bitrate[layer] -
     305           0 :                cpi->oxcf.target_bitrate[layer - 1]) *
     306           0 :               1000 / (lc->framerate - prev_layer_framerate));
     307             :   }
     308             : 
     309           0 :   lc->active_worst_quality = cpi->oxcf.worst_allowed_q;
     310           0 :   lc->active_best_quality = cpi->oxcf.best_allowed_q;
     311           0 :   lc->avg_frame_qindex = cpi->oxcf.worst_allowed_q;
     312             : 
     313           0 :   lc->buffer_level = lc->starting_buffer_level;
     314           0 :   lc->bits_off_target = lc->starting_buffer_level;
     315             : 
     316           0 :   lc->total_actual_bits = 0;
     317           0 :   lc->ni_av_qi = 0;
     318           0 :   lc->ni_tot_qi = 0;
     319           0 :   lc->ni_frames = 0;
     320           0 :   lc->rate_correction_factor = 1.0;
     321           0 :   lc->key_frame_rate_correction_factor = 1.0;
     322           0 :   lc->gf_rate_correction_factor = 1.0;
     323           0 :   lc->inter_frame_target = 0;
     324           0 : }
     325             : 
     326             : // Upon a run-time change in temporal layers, reset the layer context parameters
     327             : // for any "new" layers. For "existing" layers, let them inherit the parameters
     328             : // from the previous layer state (at the same layer #). In future we may want
     329             : // to better map the previous layer state(s) to the "new" ones.
     330           0 : static void reset_temporal_layer_change(VP8_COMP *cpi, VP8_CONFIG *oxcf,
     331             :                                         const int prev_num_layers) {
     332             :   int i;
     333           0 :   double prev_layer_framerate = 0;
     334           0 :   const int curr_num_layers = cpi->oxcf.number_of_layers;
     335             :   // If the previous state was 1 layer, get current layer context from cpi.
     336             :   // We need this to set the layer context for the new layers below.
     337           0 :   if (prev_num_layers == 1) {
     338           0 :     cpi->current_layer = 0;
     339           0 :     save_layer_context(cpi);
     340             :   }
     341           0 :   for (i = 0; i < curr_num_layers; ++i) {
     342           0 :     LAYER_CONTEXT *lc = &cpi->layer_context[i];
     343           0 :     if (i >= prev_num_layers) {
     344           0 :       init_temporal_layer_context(cpi, oxcf, i, prev_layer_framerate);
     345             :     }
     346             :     // The initial buffer levels are set based on their starting levels.
     347             :     // We could set the buffer levels based on the previous state (normalized
     348             :     // properly by the layer bandwidths) but we would need to keep track of
     349             :     // the previous set of layer bandwidths (i.e., target_bitrate[i])
     350             :     // before the layer change. For now, reset to the starting levels.
     351           0 :     lc->buffer_level =
     352           0 :         cpi->oxcf.starting_buffer_level_in_ms * cpi->oxcf.target_bitrate[i];
     353           0 :     lc->bits_off_target = lc->buffer_level;
     354             :     // TDOD(marpan): Should we set the rate_correction_factor and
     355             :     // active_worst/best_quality to values derived from the previous layer
     356             :     // state (to smooth-out quality dips/rate fluctuation at transition)?
     357             : 
     358             :     // We need to treat the 1 layer case separately: oxcf.target_bitrate[i]
     359             :     // is not set for 1 layer, and the restore_layer_context/save_context()
     360             :     // are not called in the encoding loop, so we need to call it here to
     361             :     // pass the layer context state to |cpi|.
     362           0 :     if (curr_num_layers == 1) {
     363           0 :       lc->target_bandwidth = cpi->oxcf.target_bandwidth;
     364           0 :       lc->buffer_level =
     365           0 :           cpi->oxcf.starting_buffer_level_in_ms * lc->target_bandwidth / 1000;
     366           0 :       lc->bits_off_target = lc->buffer_level;
     367           0 :       restore_layer_context(cpi, 0);
     368             :     }
     369           0 :     prev_layer_framerate = cpi->output_framerate / cpi->oxcf.rate_decimator[i];
     370             :   }
     371           0 : }
     372             : 
     373           0 : static void setup_features(VP8_COMP *cpi) {
     374             :   // If segmentation enabled set the update flags
     375           0 :   if (cpi->mb.e_mbd.segmentation_enabled) {
     376           0 :     cpi->mb.e_mbd.update_mb_segmentation_map = 1;
     377           0 :     cpi->mb.e_mbd.update_mb_segmentation_data = 1;
     378             :   } else {
     379           0 :     cpi->mb.e_mbd.update_mb_segmentation_map = 0;
     380           0 :     cpi->mb.e_mbd.update_mb_segmentation_data = 0;
     381             :   }
     382             : 
     383           0 :   cpi->mb.e_mbd.mode_ref_lf_delta_enabled = 0;
     384           0 :   cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
     385           0 :   memset(cpi->mb.e_mbd.ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
     386           0 :   memset(cpi->mb.e_mbd.mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
     387           0 :   memset(cpi->mb.e_mbd.last_ref_lf_deltas, 0,
     388             :          sizeof(cpi->mb.e_mbd.ref_lf_deltas));
     389           0 :   memset(cpi->mb.e_mbd.last_mode_lf_deltas, 0,
     390             :          sizeof(cpi->mb.e_mbd.mode_lf_deltas));
     391             : 
     392           0 :   set_default_lf_deltas(cpi);
     393           0 : }
     394             : 
     395             : static void dealloc_raw_frame_buffers(VP8_COMP *cpi);
     396             : 
     397           0 : void vp8_initialize_enc(void) {
     398             :   static volatile int init_done = 0;
     399             : 
     400           0 :   if (!init_done) {
     401           0 :     vpx_dsp_rtcd();
     402           0 :     vp8_init_intra_predictors();
     403           0 :     init_done = 1;
     404             :   }
     405           0 : }
     406             : 
     407           0 : static void dealloc_compressor_data(VP8_COMP *cpi) {
     408           0 :   vpx_free(cpi->tplist);
     409           0 :   cpi->tplist = NULL;
     410             : 
     411             :   /* Delete last frame MV storage buffers */
     412           0 :   vpx_free(cpi->lfmv);
     413           0 :   cpi->lfmv = 0;
     414             : 
     415           0 :   vpx_free(cpi->lf_ref_frame_sign_bias);
     416           0 :   cpi->lf_ref_frame_sign_bias = 0;
     417             : 
     418           0 :   vpx_free(cpi->lf_ref_frame);
     419           0 :   cpi->lf_ref_frame = 0;
     420             : 
     421             :   /* Delete sementation map */
     422           0 :   vpx_free(cpi->segmentation_map);
     423           0 :   cpi->segmentation_map = 0;
     424             : 
     425           0 :   vpx_free(cpi->active_map);
     426           0 :   cpi->active_map = 0;
     427             : 
     428           0 :   vp8_de_alloc_frame_buffers(&cpi->common);
     429             : 
     430           0 :   vp8_yv12_de_alloc_frame_buffer(&cpi->pick_lf_lvl_frame);
     431           0 :   vp8_yv12_de_alloc_frame_buffer(&cpi->scaled_source);
     432           0 :   dealloc_raw_frame_buffers(cpi);
     433             : 
     434           0 :   vpx_free(cpi->tok);
     435           0 :   cpi->tok = 0;
     436             : 
     437             :   /* Structure used to monitor GF usage */
     438           0 :   vpx_free(cpi->gf_active_flags);
     439           0 :   cpi->gf_active_flags = 0;
     440             : 
     441             :   /* Activity mask based per mb zbin adjustments */
     442           0 :   vpx_free(cpi->mb_activity_map);
     443           0 :   cpi->mb_activity_map = 0;
     444             : 
     445           0 :   vpx_free(cpi->mb.pip);
     446           0 :   cpi->mb.pip = 0;
     447             : 
     448             : #if CONFIG_MULTITHREAD
     449             :   /* De-allocate mutex */
     450           0 :   if (cpi->pmutex != NULL) {
     451           0 :     VP8_COMMON *const pc = &cpi->common;
     452             :     int i;
     453             : 
     454           0 :     for (i = 0; i < pc->mb_rows; ++i) {
     455           0 :       pthread_mutex_destroy(&cpi->pmutex[i]);
     456             :     }
     457           0 :     vpx_free(cpi->pmutex);
     458           0 :     cpi->pmutex = NULL;
     459             :   }
     460             : 
     461           0 :   vpx_free(cpi->mt_current_mb_col);
     462           0 :   cpi->mt_current_mb_col = NULL;
     463             : #endif
     464           0 : }
     465             : 
     466           0 : static void enable_segmentation(VP8_COMP *cpi) {
     467             :   /* Set the appropriate feature bit */
     468           0 :   cpi->mb.e_mbd.segmentation_enabled = 1;
     469           0 :   cpi->mb.e_mbd.update_mb_segmentation_map = 1;
     470           0 :   cpi->mb.e_mbd.update_mb_segmentation_data = 1;
     471           0 : }
     472           0 : static void disable_segmentation(VP8_COMP *cpi) {
     473             :   /* Clear the appropriate feature bit */
     474           0 :   cpi->mb.e_mbd.segmentation_enabled = 0;
     475           0 : }
     476             : 
     477             : /* Valid values for a segment are 0 to 3
     478             :  * Segmentation map is arrange as [Rows][Columns]
     479             :  */
     480           0 : static void set_segmentation_map(VP8_COMP *cpi,
     481             :                                  unsigned char *segmentation_map) {
     482             :   /* Copy in the new segmentation map */
     483           0 :   memcpy(cpi->segmentation_map, segmentation_map,
     484           0 :          (cpi->common.mb_rows * cpi->common.mb_cols));
     485             : 
     486             :   /* Signal that the map should be updated. */
     487           0 :   cpi->mb.e_mbd.update_mb_segmentation_map = 1;
     488           0 :   cpi->mb.e_mbd.update_mb_segmentation_data = 1;
     489           0 : }
     490             : 
     491             : /* The values given for each segment can be either deltas (from the default
     492             :  * value chosen for the frame) or absolute values.
     493             :  *
     494             :  * Valid range for abs values is:
     495             :  *    (0-127 for MB_LVL_ALT_Q), (0-63 for SEGMENT_ALT_LF)
     496             :  * Valid range for delta values are:
     497             :  *    (+/-127 for MB_LVL_ALT_Q), (+/-63 for SEGMENT_ALT_LF)
     498             :  *
     499             :  * abs_delta = SEGMENT_DELTADATA (deltas)
     500             :  * abs_delta = SEGMENT_ABSDATA (use the absolute values given).
     501             :  *
     502             :  */
     503           0 : static void set_segment_data(VP8_COMP *cpi, signed char *feature_data,
     504             :                              unsigned char abs_delta) {
     505           0 :   cpi->mb.e_mbd.mb_segement_abs_delta = abs_delta;
     506           0 :   memcpy(cpi->segment_feature_data, feature_data,
     507             :          sizeof(cpi->segment_feature_data));
     508           0 : }
     509             : 
     510             : /* A simple function to cyclically refresh the background at a lower Q */
     511           0 : static void cyclic_background_refresh(VP8_COMP *cpi, int Q, int lf_adjustment) {
     512           0 :   unsigned char *seg_map = cpi->segmentation_map;
     513             :   signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
     514             :   int i;
     515           0 :   int block_count = cpi->cyclic_refresh_mode_max_mbs_perframe;
     516           0 :   int mbs_in_frame = cpi->common.mb_rows * cpi->common.mb_cols;
     517             : 
     518           0 :   cpi->cyclic_refresh_q = Q / 2;
     519             : 
     520           0 :   if (cpi->oxcf.screen_content_mode) {
     521             :     // Modify quality ramp-up based on Q. Above some Q level, increase the
     522             :     // number of blocks to be refreshed, and reduce it below the thredhold.
     523             :     // Turn-off under certain conditions (i.e., away from key frame, and if
     524             :     // we are at good quality (low Q) and most of the blocks were
     525             :     // skipped-encoded
     526             :     // in previous frame.
     527           0 :     int qp_thresh = (cpi->oxcf.screen_content_mode == 2) ? 80 : 100;
     528           0 :     if (Q >= qp_thresh) {
     529           0 :       cpi->cyclic_refresh_mode_max_mbs_perframe =
     530           0 :           (cpi->common.mb_rows * cpi->common.mb_cols) / 10;
     531           0 :     } else if (cpi->frames_since_key > 250 && Q < 20 &&
     532           0 :                cpi->mb.skip_true_count > (int)(0.95 * mbs_in_frame)) {
     533           0 :       cpi->cyclic_refresh_mode_max_mbs_perframe = 0;
     534             :     } else {
     535           0 :       cpi->cyclic_refresh_mode_max_mbs_perframe =
     536           0 :           (cpi->common.mb_rows * cpi->common.mb_cols) / 20;
     537             :     }
     538           0 :     block_count = cpi->cyclic_refresh_mode_max_mbs_perframe;
     539             :   }
     540             : 
     541             :   // Set every macroblock to be eligible for update.
     542             :   // For key frame this will reset seg map to 0.
     543           0 :   memset(cpi->segmentation_map, 0, mbs_in_frame);
     544             : 
     545           0 :   if (cpi->common.frame_type != KEY_FRAME && block_count > 0) {
     546             :     /* Cycle through the macro_block rows */
     547             :     /* MB loop to set local segmentation map */
     548           0 :     i = cpi->cyclic_refresh_mode_index;
     549           0 :     assert(i < mbs_in_frame);
     550             :     do {
     551             :       /* If the MB is as a candidate for clean up then mark it for
     552             :        * possible boost/refresh (segment 1) The segment id may get
     553             :        * reset to 0 later if the MB gets coded anything other than
     554             :        * last frame 0,0 as only (last frame 0,0) MBs are eligable for
     555             :        * refresh : that is to say Mbs likely to be background blocks.
     556             :        */
     557           0 :       if (cpi->cyclic_refresh_map[i] == 0) {
     558           0 :         seg_map[i] = 1;
     559           0 :         block_count--;
     560           0 :       } else if (cpi->cyclic_refresh_map[i] < 0) {
     561           0 :         cpi->cyclic_refresh_map[i]++;
     562             :       }
     563             : 
     564           0 :       i++;
     565           0 :       if (i == mbs_in_frame) i = 0;
     566             : 
     567           0 :     } while (block_count && i != cpi->cyclic_refresh_mode_index);
     568             : 
     569           0 :     cpi->cyclic_refresh_mode_index = i;
     570             : 
     571             : #if CONFIG_TEMPORAL_DENOISING
     572           0 :     if (cpi->oxcf.noise_sensitivity > 0) {
     573           0 :       if (cpi->denoiser.denoiser_mode == kDenoiserOnYUVAggressive &&
     574           0 :           Q < (int)cpi->denoiser.denoise_pars.qp_thresh &&
     575           0 :           (cpi->frames_since_key >
     576           0 :            2 * cpi->denoiser.denoise_pars.consec_zerolast)) {
     577             :         // Under aggressive denoising, use segmentation to turn off loop
     578             :         // filter below some qp thresh. The filter is reduced for all
     579             :         // blocks that have been encoded as ZEROMV LAST x frames in a row,
     580             :         // where x is set by cpi->denoiser.denoise_pars.consec_zerolast.
     581             :         // This is to avoid "dot" artifacts that can occur from repeated
     582             :         // loop filtering on noisy input source.
     583           0 :         cpi->cyclic_refresh_q = Q;
     584             :         // lf_adjustment = -MAX_LOOP_FILTER;
     585           0 :         lf_adjustment = -40;
     586           0 :         for (i = 0; i < mbs_in_frame; ++i) {
     587           0 :           seg_map[i] = (cpi->consec_zero_last[i] >
     588           0 :                         cpi->denoiser.denoise_pars.consec_zerolast)
     589             :                            ? 1
     590           0 :                            : 0;
     591             :         }
     592             :       }
     593             :     }
     594             : #endif
     595             :   }
     596             : 
     597             :   /* Activate segmentation. */
     598           0 :   cpi->mb.e_mbd.update_mb_segmentation_map = 1;
     599           0 :   cpi->mb.e_mbd.update_mb_segmentation_data = 1;
     600           0 :   enable_segmentation(cpi);
     601             : 
     602             :   /* Set up the quant segment data */
     603           0 :   feature_data[MB_LVL_ALT_Q][0] = 0;
     604           0 :   feature_data[MB_LVL_ALT_Q][1] = (cpi->cyclic_refresh_q - Q);
     605           0 :   feature_data[MB_LVL_ALT_Q][2] = 0;
     606           0 :   feature_data[MB_LVL_ALT_Q][3] = 0;
     607             : 
     608             :   /* Set up the loop segment data */
     609           0 :   feature_data[MB_LVL_ALT_LF][0] = 0;
     610           0 :   feature_data[MB_LVL_ALT_LF][1] = lf_adjustment;
     611           0 :   feature_data[MB_LVL_ALT_LF][2] = 0;
     612           0 :   feature_data[MB_LVL_ALT_LF][3] = 0;
     613             : 
     614             :   /* Initialise the feature data structure */
     615           0 :   set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
     616           0 : }
     617             : 
     618           0 : static void set_default_lf_deltas(VP8_COMP *cpi) {
     619           0 :   cpi->mb.e_mbd.mode_ref_lf_delta_enabled = 1;
     620           0 :   cpi->mb.e_mbd.mode_ref_lf_delta_update = 1;
     621             : 
     622           0 :   memset(cpi->mb.e_mbd.ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
     623           0 :   memset(cpi->mb.e_mbd.mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
     624             : 
     625             :   /* Test of ref frame deltas */
     626           0 :   cpi->mb.e_mbd.ref_lf_deltas[INTRA_FRAME] = 2;
     627           0 :   cpi->mb.e_mbd.ref_lf_deltas[LAST_FRAME] = 0;
     628           0 :   cpi->mb.e_mbd.ref_lf_deltas[GOLDEN_FRAME] = -2;
     629           0 :   cpi->mb.e_mbd.ref_lf_deltas[ALTREF_FRAME] = -2;
     630             : 
     631           0 :   cpi->mb.e_mbd.mode_lf_deltas[0] = 4; /* BPRED */
     632             : 
     633           0 :   if (cpi->oxcf.Mode == MODE_REALTIME) {
     634           0 :     cpi->mb.e_mbd.mode_lf_deltas[1] = -12; /* Zero */
     635             :   } else {
     636           0 :     cpi->mb.e_mbd.mode_lf_deltas[1] = -2; /* Zero */
     637             :   }
     638             : 
     639           0 :   cpi->mb.e_mbd.mode_lf_deltas[2] = 2; /* New mv */
     640           0 :   cpi->mb.e_mbd.mode_lf_deltas[3] = 4; /* Split mv */
     641           0 : }
     642             : 
     643             : /* Convenience macros for mapping speed and mode into a continuous
     644             :  * range
     645             :  */
     646             : #define GOOD(x) (x + 1)
     647             : #define RT(x) (x + 7)
     648             : 
     649           0 : static int speed_map(int speed, const int *map) {
     650             :   int res;
     651             : 
     652             :   do {
     653           0 :     res = *map++;
     654           0 :   } while (speed >= *map++);
     655           0 :   return res;
     656             : }
     657             : 
     658             : static const int thresh_mult_map_znn[] = {
     659             :   /* map common to zero, nearest, and near */
     660             :   0, GOOD(2), 1500, GOOD(3), 2000, RT(0), 1000, RT(2), 2000, INT_MAX
     661             : };
     662             : 
     663             : static const int thresh_mult_map_vhpred[] = { 1000, GOOD(2), 1500,    GOOD(3),
     664             :                                               2000, RT(0),   1000,    RT(1),
     665             :                                               2000, RT(7),   INT_MAX, INT_MAX };
     666             : 
     667             : static const int thresh_mult_map_bpred[] = { 2000,    GOOD(0), 2500, GOOD(2),
     668             :                                              5000,    GOOD(3), 7500, RT(0),
     669             :                                              2500,    RT(1),   5000, RT(6),
     670             :                                              INT_MAX, INT_MAX };
     671             : 
     672             : static const int thresh_mult_map_tm[] = { 1000,    GOOD(2), 1500, GOOD(3),
     673             :                                           2000,    RT(0),   0,    RT(1),
     674             :                                           1000,    RT(2),   2000, RT(7),
     675             :                                           INT_MAX, INT_MAX };
     676             : 
     677             : static const int thresh_mult_map_new1[] = { 1000,  GOOD(2), 2000,
     678             :                                             RT(0), 2000,    INT_MAX };
     679             : 
     680             : static const int thresh_mult_map_new2[] = { 1000, GOOD(2), 2000, GOOD(3),
     681             :                                             2500, GOOD(5), 4000, RT(0),
     682             :                                             2000, RT(2),   2500, RT(5),
     683             :                                             4000, INT_MAX };
     684             : 
     685             : static const int thresh_mult_map_split1[] = {
     686             :   2500,  GOOD(0), 1700,  GOOD(2), 10000, GOOD(3), 25000, GOOD(4), INT_MAX,
     687             :   RT(0), 5000,    RT(1), 10000,   RT(2), 25000,   RT(3), INT_MAX, INT_MAX
     688             : };
     689             : 
     690             : static const int thresh_mult_map_split2[] = {
     691             :   5000,  GOOD(0), 4500,  GOOD(2), 20000, GOOD(3), 50000, GOOD(4), INT_MAX,
     692             :   RT(0), 10000,   RT(1), 20000,   RT(2), 50000,   RT(3), INT_MAX, INT_MAX
     693             : };
     694             : 
     695             : static const int mode_check_freq_map_zn2[] = {
     696             :   /* {zero,nearest}{2,3} */
     697             :   0, RT(10), 1 << 1, RT(11), 1 << 2, RT(12), 1 << 3, INT_MAX
     698             : };
     699             : 
     700             : static const int mode_check_freq_map_vhbpred[] = {
     701             :   0, GOOD(5), 2, RT(0), 0, RT(3), 2, RT(5), 4, INT_MAX
     702             : };
     703             : 
     704             : static const int mode_check_freq_map_near2[] = {
     705             :   0,      GOOD(5), 2,      RT(0),  0,      RT(3),  2,
     706             :   RT(10), 1 << 2,  RT(11), 1 << 3, RT(12), 1 << 4, INT_MAX
     707             : };
     708             : 
     709             : static const int mode_check_freq_map_new1[] = {
     710             :   0, RT(10), 1 << 1, RT(11), 1 << 2, RT(12), 1 << 3, INT_MAX
     711             : };
     712             : 
     713             : static const int mode_check_freq_map_new2[] = { 0,      GOOD(5), 4,      RT(0),
     714             :                                                 0,      RT(3),   4,      RT(10),
     715             :                                                 1 << 3, RT(11),  1 << 4, RT(12),
     716             :                                                 1 << 5, INT_MAX };
     717             : 
     718             : static const int mode_check_freq_map_split1[] = {
     719             :   0, GOOD(2), 2, GOOD(3), 7, RT(1), 2, RT(2), 7, INT_MAX
     720             : };
     721             : 
     722             : static const int mode_check_freq_map_split2[] = {
     723             :   0, GOOD(1), 2, GOOD(2), 4, GOOD(3), 15, RT(1), 4, RT(2), 15, INT_MAX
     724             : };
     725             : 
     726           0 : void vp8_set_speed_features(VP8_COMP *cpi) {
     727           0 :   SPEED_FEATURES *sf = &cpi->sf;
     728           0 :   int Mode = cpi->compressor_speed;
     729           0 :   int Speed = cpi->Speed;
     730             :   int i;
     731           0 :   VP8_COMMON *cm = &cpi->common;
     732           0 :   int last_improved_quant = sf->improved_quant;
     733             :   int ref_frames;
     734             : 
     735             :   /* Initialise default mode frequency sampling variables */
     736           0 :   for (i = 0; i < MAX_MODES; ++i) {
     737           0 :     cpi->mode_check_freq[i] = 0;
     738             :   }
     739             : 
     740           0 :   cpi->mb.mbs_tested_so_far = 0;
     741           0 :   cpi->mb.mbs_zero_last_dot_suppress = 0;
     742             : 
     743             :   /* best quality defaults */
     744           0 :   sf->RD = 1;
     745           0 :   sf->search_method = NSTEP;
     746           0 :   sf->improved_quant = 1;
     747           0 :   sf->improved_dct = 1;
     748           0 :   sf->auto_filter = 1;
     749           0 :   sf->recode_loop = 1;
     750           0 :   sf->quarter_pixel_search = 1;
     751           0 :   sf->half_pixel_search = 1;
     752           0 :   sf->iterative_sub_pixel = 1;
     753           0 :   sf->optimize_coefficients = 1;
     754           0 :   sf->use_fastquant_for_pick = 0;
     755           0 :   sf->no_skip_block4x4_search = 1;
     756             : 
     757           0 :   sf->first_step = 0;
     758           0 :   sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
     759           0 :   sf->improved_mv_pred = 1;
     760             : 
     761             :   /* default thresholds to 0 */
     762           0 :   for (i = 0; i < MAX_MODES; ++i) sf->thresh_mult[i] = 0;
     763             : 
     764             :   /* Count enabled references */
     765           0 :   ref_frames = 1;
     766           0 :   if (cpi->ref_frame_flags & VP8_LAST_FRAME) ref_frames++;
     767           0 :   if (cpi->ref_frame_flags & VP8_GOLD_FRAME) ref_frames++;
     768           0 :   if (cpi->ref_frame_flags & VP8_ALTR_FRAME) ref_frames++;
     769             : 
     770             :   /* Convert speed to continuous range, with clamping */
     771           0 :   if (Mode == 0) {
     772           0 :     Speed = 0;
     773           0 :   } else if (Mode == 2) {
     774           0 :     Speed = RT(Speed);
     775             :   } else {
     776           0 :     if (Speed > 5) Speed = 5;
     777           0 :     Speed = GOOD(Speed);
     778             :   }
     779             : 
     780           0 :   sf->thresh_mult[THR_ZERO1] = sf->thresh_mult[THR_NEAREST1] =
     781           0 :       sf->thresh_mult[THR_NEAR1] = sf->thresh_mult[THR_DC] = 0; /* always */
     782             : 
     783           0 :   sf->thresh_mult[THR_ZERO2] = sf->thresh_mult[THR_ZERO3] =
     784           0 :       sf->thresh_mult[THR_NEAREST2] = sf->thresh_mult[THR_NEAREST3] =
     785           0 :           sf->thresh_mult[THR_NEAR2] = sf->thresh_mult[THR_NEAR3] =
     786           0 :               speed_map(Speed, thresh_mult_map_znn);
     787             : 
     788           0 :   sf->thresh_mult[THR_V_PRED] = sf->thresh_mult[THR_H_PRED] =
     789           0 :       speed_map(Speed, thresh_mult_map_vhpred);
     790           0 :   sf->thresh_mult[THR_B_PRED] = speed_map(Speed, thresh_mult_map_bpred);
     791           0 :   sf->thresh_mult[THR_TM] = speed_map(Speed, thresh_mult_map_tm);
     792           0 :   sf->thresh_mult[THR_NEW1] = speed_map(Speed, thresh_mult_map_new1);
     793           0 :   sf->thresh_mult[THR_NEW2] = sf->thresh_mult[THR_NEW3] =
     794           0 :       speed_map(Speed, thresh_mult_map_new2);
     795           0 :   sf->thresh_mult[THR_SPLIT1] = speed_map(Speed, thresh_mult_map_split1);
     796           0 :   sf->thresh_mult[THR_SPLIT2] = sf->thresh_mult[THR_SPLIT3] =
     797           0 :       speed_map(Speed, thresh_mult_map_split2);
     798             : 
     799             :   // Special case for temporal layers.
     800             :   // Reduce the thresholds for zero/nearest/near for GOLDEN, if GOLDEN is
     801             :   // used as second reference. We don't modify thresholds for ALTREF case
     802             :   // since ALTREF is usually used as long-term reference in temporal layers.
     803           0 :   if ((cpi->Speed <= 6) && (cpi->oxcf.number_of_layers > 1) &&
     804           0 :       (cpi->ref_frame_flags & VP8_LAST_FRAME) &&
     805           0 :       (cpi->ref_frame_flags & VP8_GOLD_FRAME)) {
     806           0 :     if (cpi->closest_reference_frame == GOLDEN_FRAME) {
     807           0 :       sf->thresh_mult[THR_ZERO2] = sf->thresh_mult[THR_ZERO2] >> 3;
     808           0 :       sf->thresh_mult[THR_NEAREST2] = sf->thresh_mult[THR_NEAREST2] >> 3;
     809           0 :       sf->thresh_mult[THR_NEAR2] = sf->thresh_mult[THR_NEAR2] >> 3;
     810             :     } else {
     811           0 :       sf->thresh_mult[THR_ZERO2] = sf->thresh_mult[THR_ZERO2] >> 1;
     812           0 :       sf->thresh_mult[THR_NEAREST2] = sf->thresh_mult[THR_NEAREST2] >> 1;
     813           0 :       sf->thresh_mult[THR_NEAR2] = sf->thresh_mult[THR_NEAR2] >> 1;
     814             :     }
     815             :   }
     816             : 
     817           0 :   cpi->mode_check_freq[THR_ZERO1] = cpi->mode_check_freq[THR_NEAREST1] =
     818           0 :       cpi->mode_check_freq[THR_NEAR1] = cpi->mode_check_freq[THR_TM] =
     819           0 :           cpi->mode_check_freq[THR_DC] = 0; /* always */
     820             : 
     821           0 :   cpi->mode_check_freq[THR_ZERO2] = cpi->mode_check_freq[THR_ZERO3] =
     822           0 :       cpi->mode_check_freq[THR_NEAREST2] = cpi->mode_check_freq[THR_NEAREST3] =
     823           0 :           speed_map(Speed, mode_check_freq_map_zn2);
     824             : 
     825           0 :   cpi->mode_check_freq[THR_NEAR2] = cpi->mode_check_freq[THR_NEAR3] =
     826           0 :       speed_map(Speed, mode_check_freq_map_near2);
     827             : 
     828           0 :   cpi->mode_check_freq[THR_V_PRED] = cpi->mode_check_freq[THR_H_PRED] =
     829           0 :       cpi->mode_check_freq[THR_B_PRED] =
     830           0 :           speed_map(Speed, mode_check_freq_map_vhbpred);
     831           0 :   cpi->mode_check_freq[THR_NEW1] = speed_map(Speed, mode_check_freq_map_new1);
     832           0 :   cpi->mode_check_freq[THR_NEW2] = cpi->mode_check_freq[THR_NEW3] =
     833           0 :       speed_map(Speed, mode_check_freq_map_new2);
     834           0 :   cpi->mode_check_freq[THR_SPLIT1] =
     835           0 :       speed_map(Speed, mode_check_freq_map_split1);
     836           0 :   cpi->mode_check_freq[THR_SPLIT2] = cpi->mode_check_freq[THR_SPLIT3] =
     837           0 :       speed_map(Speed, mode_check_freq_map_split2);
     838           0 :   Speed = cpi->Speed;
     839           0 :   switch (Mode) {
     840             : #if !CONFIG_REALTIME_ONLY
     841             :     case 0: /* best quality mode */
     842           0 :       sf->first_step = 0;
     843           0 :       sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
     844           0 :       break;
     845             :     case 1:
     846             :     case 3:
     847           0 :       if (Speed > 0) {
     848             :         /* Disable coefficient optimization above speed 0 */
     849           0 :         sf->optimize_coefficients = 0;
     850           0 :         sf->use_fastquant_for_pick = 1;
     851           0 :         sf->no_skip_block4x4_search = 0;
     852             : 
     853           0 :         sf->first_step = 1;
     854             :       }
     855             : 
     856           0 :       if (Speed > 2) {
     857           0 :         sf->improved_quant = 0;
     858           0 :         sf->improved_dct = 0;
     859             : 
     860             :         /* Only do recode loop on key frames, golden frames and
     861             :          * alt ref frames
     862             :          */
     863           0 :         sf->recode_loop = 2;
     864             :       }
     865             : 
     866           0 :       if (Speed > 3) {
     867           0 :         sf->auto_filter = 1;
     868           0 :         sf->recode_loop = 0; /* recode loop off */
     869           0 :         sf->RD = 0;          /* Turn rd off */
     870             :       }
     871             : 
     872           0 :       if (Speed > 4) {
     873           0 :         sf->auto_filter = 0; /* Faster selection of loop filter */
     874             :       }
     875             : 
     876           0 :       break;
     877             : #endif
     878             :     case 2:
     879           0 :       sf->optimize_coefficients = 0;
     880           0 :       sf->recode_loop = 0;
     881           0 :       sf->auto_filter = 1;
     882           0 :       sf->iterative_sub_pixel = 1;
     883           0 :       sf->search_method = NSTEP;
     884             : 
     885           0 :       if (Speed > 0) {
     886           0 :         sf->improved_quant = 0;
     887           0 :         sf->improved_dct = 0;
     888             : 
     889           0 :         sf->use_fastquant_for_pick = 1;
     890           0 :         sf->no_skip_block4x4_search = 0;
     891           0 :         sf->first_step = 1;
     892             :       }
     893             : 
     894           0 :       if (Speed > 2) sf->auto_filter = 0; /* Faster selection of loop filter */
     895             : 
     896           0 :       if (Speed > 3) {
     897           0 :         sf->RD = 0;
     898           0 :         sf->auto_filter = 1;
     899             :       }
     900             : 
     901           0 :       if (Speed > 4) {
     902           0 :         sf->auto_filter = 0; /* Faster selection of loop filter */
     903           0 :         sf->search_method = HEX;
     904           0 :         sf->iterative_sub_pixel = 0;
     905             :       }
     906             : 
     907           0 :       if (Speed > 6) {
     908           0 :         unsigned int sum = 0;
     909           0 :         unsigned int total_mbs = cm->MBs;
     910             :         int thresh;
     911             :         unsigned int total_skip;
     912             : 
     913           0 :         int min = 2000;
     914             : 
     915           0 :         if (cpi->oxcf.encode_breakout > 2000) min = cpi->oxcf.encode_breakout;
     916             : 
     917           0 :         min >>= 7;
     918             : 
     919           0 :         for (i = 0; i < min; ++i) {
     920           0 :           sum += cpi->mb.error_bins[i];
     921             :         }
     922             : 
     923           0 :         total_skip = sum;
     924           0 :         sum = 0;
     925             : 
     926             :         /* i starts from 2 to make sure thresh started from 2048 */
     927           0 :         for (; i < 1024; ++i) {
     928           0 :           sum += cpi->mb.error_bins[i];
     929             : 
     930           0 :           if (10 * sum >=
     931           0 :               (unsigned int)(cpi->Speed - 6) * (total_mbs - total_skip)) {
     932           0 :             break;
     933             :           }
     934             :         }
     935             : 
     936           0 :         i--;
     937           0 :         thresh = (i << 7);
     938             : 
     939           0 :         if (thresh < 2000) thresh = 2000;
     940             : 
     941           0 :         if (ref_frames > 1) {
     942           0 :           sf->thresh_mult[THR_NEW1] = thresh;
     943           0 :           sf->thresh_mult[THR_NEAREST1] = thresh >> 1;
     944           0 :           sf->thresh_mult[THR_NEAR1] = thresh >> 1;
     945             :         }
     946             : 
     947           0 :         if (ref_frames > 2) {
     948           0 :           sf->thresh_mult[THR_NEW2] = thresh << 1;
     949           0 :           sf->thresh_mult[THR_NEAREST2] = thresh;
     950           0 :           sf->thresh_mult[THR_NEAR2] = thresh;
     951             :         }
     952             : 
     953           0 :         if (ref_frames > 3) {
     954           0 :           sf->thresh_mult[THR_NEW3] = thresh << 1;
     955           0 :           sf->thresh_mult[THR_NEAREST3] = thresh;
     956           0 :           sf->thresh_mult[THR_NEAR3] = thresh;
     957             :         }
     958             : 
     959           0 :         sf->improved_mv_pred = 0;
     960             :       }
     961             : 
     962           0 :       if (Speed > 8) sf->quarter_pixel_search = 0;
     963             : 
     964           0 :       if (cm->version == 0) {
     965           0 :         cm->filter_type = NORMAL_LOOPFILTER;
     966             : 
     967           0 :         if (Speed >= 14) cm->filter_type = SIMPLE_LOOPFILTER;
     968             :       } else {
     969           0 :         cm->filter_type = SIMPLE_LOOPFILTER;
     970             :       }
     971             : 
     972             :       /* This has a big hit on quality. Last resort */
     973           0 :       if (Speed >= 15) sf->half_pixel_search = 0;
     974             : 
     975           0 :       memset(cpi->mb.error_bins, 0, sizeof(cpi->mb.error_bins));
     976             : 
     977             :   }; /* switch */
     978             : 
     979             :   /* Slow quant, dct and trellis not worthwhile for first pass
     980             :    * so make sure they are always turned off.
     981             :    */
     982           0 :   if (cpi->pass == 1) {
     983           0 :     sf->improved_quant = 0;
     984           0 :     sf->optimize_coefficients = 0;
     985           0 :     sf->improved_dct = 0;
     986             :   }
     987             : 
     988           0 :   if (cpi->sf.search_method == NSTEP) {
     989           0 :     vp8_init3smotion_compensation(&cpi->mb,
     990           0 :                                   cm->yv12_fb[cm->lst_fb_idx].y_stride);
     991           0 :   } else if (cpi->sf.search_method == DIAMOND) {
     992           0 :     vp8_init_dsmotion_compensation(&cpi->mb,
     993           0 :                                    cm->yv12_fb[cm->lst_fb_idx].y_stride);
     994             :   }
     995             : 
     996           0 :   if (cpi->sf.improved_dct) {
     997           0 :     cpi->mb.short_fdct8x4 = vp8_short_fdct8x4;
     998           0 :     cpi->mb.short_fdct4x4 = vp8_short_fdct4x4;
     999             :   } else {
    1000             :     /* No fast FDCT defined for any platform at this time. */
    1001           0 :     cpi->mb.short_fdct8x4 = vp8_short_fdct8x4;
    1002           0 :     cpi->mb.short_fdct4x4 = vp8_short_fdct4x4;
    1003             :   }
    1004             : 
    1005           0 :   cpi->mb.short_walsh4x4 = vp8_short_walsh4x4;
    1006             : 
    1007           0 :   if (cpi->sf.improved_quant) {
    1008           0 :     cpi->mb.quantize_b = vp8_regular_quantize_b;
    1009             :   } else {
    1010           0 :     cpi->mb.quantize_b = vp8_fast_quantize_b;
    1011             :   }
    1012           0 :   if (cpi->sf.improved_quant != last_improved_quant) vp8cx_init_quantizer(cpi);
    1013             : 
    1014           0 :   if (cpi->sf.iterative_sub_pixel == 1) {
    1015           0 :     cpi->find_fractional_mv_step = vp8_find_best_sub_pixel_step_iteratively;
    1016           0 :   } else if (cpi->sf.quarter_pixel_search) {
    1017           0 :     cpi->find_fractional_mv_step = vp8_find_best_sub_pixel_step;
    1018           0 :   } else if (cpi->sf.half_pixel_search) {
    1019           0 :     cpi->find_fractional_mv_step = vp8_find_best_half_pixel_step;
    1020             :   } else {
    1021           0 :     cpi->find_fractional_mv_step = vp8_skip_fractional_mv_step;
    1022             :   }
    1023             : 
    1024           0 :   if (cpi->sf.optimize_coefficients == 1 && cpi->pass != 1) {
    1025           0 :     cpi->mb.optimize = 1;
    1026             :   } else {
    1027           0 :     cpi->mb.optimize = 0;
    1028             :   }
    1029             : 
    1030           0 :   if (cpi->common.full_pixel) {
    1031           0 :     cpi->find_fractional_mv_step = vp8_skip_fractional_mv_step;
    1032             :   }
    1033             : 
    1034             : #ifdef SPEEDSTATS
    1035             :   frames_at_speed[cpi->Speed]++;
    1036             : #endif
    1037           0 : }
    1038             : #undef GOOD
    1039             : #undef RT
    1040             : 
    1041           0 : static void alloc_raw_frame_buffers(VP8_COMP *cpi) {
    1042             : #if VP8_TEMPORAL_ALT_REF
    1043           0 :   int width = (cpi->oxcf.Width + 15) & ~15;
    1044           0 :   int height = (cpi->oxcf.Height + 15) & ~15;
    1045             : #endif
    1046             : 
    1047           0 :   cpi->lookahead = vp8_lookahead_init(cpi->oxcf.Width, cpi->oxcf.Height,
    1048           0 :                                       cpi->oxcf.lag_in_frames);
    1049           0 :   if (!cpi->lookahead) {
    1050           0 :     vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
    1051             :                        "Failed to allocate lag buffers");
    1052             :   }
    1053             : 
    1054             : #if VP8_TEMPORAL_ALT_REF
    1055             : 
    1056           0 :   if (vp8_yv12_alloc_frame_buffer(&cpi->alt_ref_buffer, width, height,
    1057             :                                   VP8BORDERINPIXELS)) {
    1058           0 :     vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
    1059             :                        "Failed to allocate altref buffer");
    1060             :   }
    1061             : 
    1062             : #endif
    1063           0 : }
    1064             : 
    1065           0 : static void dealloc_raw_frame_buffers(VP8_COMP *cpi) {
    1066             : #if VP8_TEMPORAL_ALT_REF
    1067           0 :   vp8_yv12_de_alloc_frame_buffer(&cpi->alt_ref_buffer);
    1068             : #endif
    1069           0 :   vp8_lookahead_destroy(cpi->lookahead);
    1070           0 : }
    1071             : 
    1072           0 : static int vp8_alloc_partition_data(VP8_COMP *cpi) {
    1073           0 :   vpx_free(cpi->mb.pip);
    1074             : 
    1075           0 :   cpi->mb.pip =
    1076           0 :       vpx_calloc((cpi->common.mb_cols + 1) * (cpi->common.mb_rows + 1),
    1077             :                  sizeof(PARTITION_INFO));
    1078           0 :   if (!cpi->mb.pip) return 1;
    1079             : 
    1080           0 :   cpi->mb.pi = cpi->mb.pip + cpi->common.mode_info_stride + 1;
    1081             : 
    1082           0 :   return 0;
    1083             : }
    1084             : 
    1085           0 : void vp8_alloc_compressor_data(VP8_COMP *cpi) {
    1086           0 :   VP8_COMMON *cm = &cpi->common;
    1087             : 
    1088           0 :   int width = cm->Width;
    1089           0 :   int height = cm->Height;
    1090             : #if CONFIG_MULTITHREAD
    1091           0 :   int prev_mb_rows = cm->mb_rows;
    1092             : #endif
    1093             : 
    1094           0 :   if (vp8_alloc_frame_buffers(cm, width, height)) {
    1095           0 :     vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
    1096             :                        "Failed to allocate frame buffers");
    1097             :   }
    1098             : 
    1099           0 :   if (vp8_alloc_partition_data(cpi)) {
    1100           0 :     vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
    1101             :                        "Failed to allocate partition data");
    1102             :   }
    1103             : 
    1104           0 :   if ((width & 0xf) != 0) width += 16 - (width & 0xf);
    1105             : 
    1106           0 :   if ((height & 0xf) != 0) height += 16 - (height & 0xf);
    1107             : 
    1108           0 :   if (vp8_yv12_alloc_frame_buffer(&cpi->pick_lf_lvl_frame, width, height,
    1109             :                                   VP8BORDERINPIXELS)) {
    1110           0 :     vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
    1111             :                        "Failed to allocate last frame buffer");
    1112             :   }
    1113             : 
    1114           0 :   if (vp8_yv12_alloc_frame_buffer(&cpi->scaled_source, width, height,
    1115             :                                   VP8BORDERINPIXELS)) {
    1116           0 :     vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
    1117             :                        "Failed to allocate scaled source buffer");
    1118             :   }
    1119             : 
    1120           0 :   vpx_free(cpi->tok);
    1121             : 
    1122             :   {
    1123             : #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
    1124             :     unsigned int tokens = 8 * 24 * 16; /* one MB for each thread */
    1125             : #else
    1126           0 :     unsigned int tokens = cm->mb_rows * cm->mb_cols * 24 * 16;
    1127             : #endif
    1128           0 :     CHECK_MEM_ERROR(cpi->tok, vpx_calloc(tokens, sizeof(*cpi->tok)));
    1129             :   }
    1130             : 
    1131             :   /* Data used for real time vc mode to see if gf needs refreshing */
    1132           0 :   cpi->zeromv_count = 0;
    1133             : 
    1134             :   /* Structures used to monitor GF usage */
    1135           0 :   vpx_free(cpi->gf_active_flags);
    1136           0 :   CHECK_MEM_ERROR(
    1137             :       cpi->gf_active_flags,
    1138             :       vpx_calloc(sizeof(*cpi->gf_active_flags), cm->mb_rows * cm->mb_cols));
    1139           0 :   cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
    1140             : 
    1141           0 :   vpx_free(cpi->mb_activity_map);
    1142           0 :   CHECK_MEM_ERROR(
    1143             :       cpi->mb_activity_map,
    1144             :       vpx_calloc(sizeof(*cpi->mb_activity_map), cm->mb_rows * cm->mb_cols));
    1145             : 
    1146             :   /* allocate memory for storing last frame's MVs for MV prediction. */
    1147           0 :   vpx_free(cpi->lfmv);
    1148           0 :   CHECK_MEM_ERROR(cpi->lfmv, vpx_calloc((cm->mb_rows + 2) * (cm->mb_cols + 2),
    1149             :                                         sizeof(*cpi->lfmv)));
    1150           0 :   vpx_free(cpi->lf_ref_frame_sign_bias);
    1151           0 :   CHECK_MEM_ERROR(cpi->lf_ref_frame_sign_bias,
    1152             :                   vpx_calloc((cm->mb_rows + 2) * (cm->mb_cols + 2),
    1153             :                              sizeof(*cpi->lf_ref_frame_sign_bias)));
    1154           0 :   vpx_free(cpi->lf_ref_frame);
    1155           0 :   CHECK_MEM_ERROR(cpi->lf_ref_frame,
    1156             :                   vpx_calloc((cm->mb_rows + 2) * (cm->mb_cols + 2),
    1157             :                              sizeof(*cpi->lf_ref_frame)));
    1158             : 
    1159             :   /* Create the encoder segmentation map and set all entries to 0 */
    1160           0 :   vpx_free(cpi->segmentation_map);
    1161           0 :   CHECK_MEM_ERROR(
    1162             :       cpi->segmentation_map,
    1163             :       vpx_calloc(cm->mb_rows * cm->mb_cols, sizeof(*cpi->segmentation_map)));
    1164           0 :   cpi->cyclic_refresh_mode_index = 0;
    1165           0 :   vpx_free(cpi->active_map);
    1166           0 :   CHECK_MEM_ERROR(cpi->active_map, vpx_calloc(cm->mb_rows * cm->mb_cols,
    1167             :                                               sizeof(*cpi->active_map)));
    1168           0 :   memset(cpi->active_map, 1, (cm->mb_rows * cm->mb_cols));
    1169             : 
    1170             : #if CONFIG_MULTITHREAD
    1171           0 :   if (width < 640) {
    1172           0 :     cpi->mt_sync_range = 1;
    1173           0 :   } else if (width <= 1280) {
    1174           0 :     cpi->mt_sync_range = 4;
    1175           0 :   } else if (width <= 2560) {
    1176           0 :     cpi->mt_sync_range = 8;
    1177             :   } else {
    1178           0 :     cpi->mt_sync_range = 16;
    1179             :   }
    1180             : 
    1181           0 :   if (cpi->oxcf.multi_threaded > 1) {
    1182             :     int i;
    1183             : 
    1184             :     /* De-allocate and re-allocate mutex */
    1185           0 :     if (cpi->pmutex != NULL) {
    1186           0 :       for (i = 0; i < prev_mb_rows; ++i) {
    1187           0 :         pthread_mutex_destroy(&cpi->pmutex[i]);
    1188             :       }
    1189           0 :       vpx_free(cpi->pmutex);
    1190           0 :       cpi->pmutex = NULL;
    1191             :     }
    1192             : 
    1193           0 :     CHECK_MEM_ERROR(cpi->pmutex,
    1194             :                     vpx_malloc(sizeof(*cpi->pmutex) * cm->mb_rows));
    1195           0 :     if (cpi->pmutex) {
    1196           0 :       for (i = 0; i < cm->mb_rows; ++i) {
    1197           0 :         pthread_mutex_init(&cpi->pmutex[i], NULL);
    1198             :       }
    1199             :     }
    1200             : 
    1201           0 :     vpx_free(cpi->mt_current_mb_col);
    1202           0 :     CHECK_MEM_ERROR(cpi->mt_current_mb_col,
    1203             :                     vpx_malloc(sizeof(*cpi->mt_current_mb_col) * cm->mb_rows));
    1204             :   }
    1205             : 
    1206             : #endif
    1207             : 
    1208           0 :   vpx_free(cpi->tplist);
    1209           0 :   CHECK_MEM_ERROR(cpi->tplist, vpx_malloc(sizeof(TOKENLIST) * cm->mb_rows));
    1210             : 
    1211             : #if CONFIG_TEMPORAL_DENOISING
    1212           0 :   if (cpi->oxcf.noise_sensitivity > 0) {
    1213           0 :     vp8_denoiser_free(&cpi->denoiser);
    1214           0 :     if (vp8_denoiser_allocate(&cpi->denoiser, width, height, cm->mb_rows,
    1215             :                               cm->mb_cols, cpi->oxcf.noise_sensitivity)) {
    1216           0 :       vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
    1217             :                          "Failed to allocate denoiser");
    1218             :     }
    1219             :   }
    1220             : #endif
    1221           0 : }
    1222             : 
    1223             : /* Quant MOD */
    1224             : static const int q_trans[] = {
    1225             :   0,  1,  2,  3,  4,  5,  7,   8,   9,   10,  12,  13,  15,  17,  18,  19,
    1226             :   20, 21, 23, 24, 25, 26, 27,  28,  29,  30,  31,  33,  35,  37,  39,  41,
    1227             :   43, 45, 47, 49, 51, 53, 55,  57,  59,  61,  64,  67,  70,  73,  76,  79,
    1228             :   82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 127,
    1229             : };
    1230             : 
    1231           0 : int vp8_reverse_trans(int x) {
    1232             :   int i;
    1233             : 
    1234           0 :   for (i = 0; i < 64; ++i) {
    1235           0 :     if (q_trans[i] >= x) return i;
    1236             :   }
    1237             : 
    1238           0 :   return 63;
    1239             : }
    1240           0 : void vp8_new_framerate(VP8_COMP *cpi, double framerate) {
    1241           0 :   if (framerate < .1) framerate = 30;
    1242             : 
    1243           0 :   cpi->framerate = framerate;
    1244           0 :   cpi->output_framerate = framerate;
    1245           0 :   cpi->per_frame_bandwidth =
    1246           0 :       (int)(cpi->oxcf.target_bandwidth / cpi->output_framerate);
    1247           0 :   cpi->av_per_frame_bandwidth = cpi->per_frame_bandwidth;
    1248           0 :   cpi->min_frame_bandwidth = (int)(cpi->av_per_frame_bandwidth *
    1249           0 :                                    cpi->oxcf.two_pass_vbrmin_section / 100);
    1250             : 
    1251             :   /* Set Maximum gf/arf interval */
    1252           0 :   cpi->max_gf_interval = ((int)(cpi->output_framerate / 2.0) + 2);
    1253             : 
    1254           0 :   if (cpi->max_gf_interval < 12) cpi->max_gf_interval = 12;
    1255             : 
    1256             :   /* Extended interval for genuinely static scenes */
    1257           0 :   cpi->twopass.static_scene_max_gf_interval = cpi->key_frame_frequency >> 1;
    1258             : 
    1259             :   /* Special conditions when altr ref frame enabled in lagged compress mode */
    1260           0 :   if (cpi->oxcf.play_alternate && cpi->oxcf.lag_in_frames) {
    1261           0 :     if (cpi->max_gf_interval > cpi->oxcf.lag_in_frames - 1) {
    1262           0 :       cpi->max_gf_interval = cpi->oxcf.lag_in_frames - 1;
    1263             :     }
    1264             : 
    1265           0 :     if (cpi->twopass.static_scene_max_gf_interval >
    1266           0 :         cpi->oxcf.lag_in_frames - 1) {
    1267           0 :       cpi->twopass.static_scene_max_gf_interval = cpi->oxcf.lag_in_frames - 1;
    1268             :     }
    1269             :   }
    1270             : 
    1271           0 :   if (cpi->max_gf_interval > cpi->twopass.static_scene_max_gf_interval) {
    1272           0 :     cpi->max_gf_interval = cpi->twopass.static_scene_max_gf_interval;
    1273             :   }
    1274           0 : }
    1275             : 
    1276           0 : static void init_config(VP8_COMP *cpi, VP8_CONFIG *oxcf) {
    1277           0 :   VP8_COMMON *cm = &cpi->common;
    1278             : 
    1279           0 :   cpi->oxcf = *oxcf;
    1280             : 
    1281           0 :   cpi->auto_gold = 1;
    1282           0 :   cpi->auto_adjust_gold_quantizer = 1;
    1283             : 
    1284           0 :   cm->version = oxcf->Version;
    1285           0 :   vp8_setup_version(cm);
    1286             : 
    1287             :   /* Frame rate is not available on the first frame, as it's derived from
    1288             :    * the observed timestamps. The actual value used here doesn't matter
    1289             :    * too much, as it will adapt quickly.
    1290             :    */
    1291           0 :   if (oxcf->timebase.num > 0) {
    1292           0 :     cpi->framerate =
    1293           0 :         (double)(oxcf->timebase.den) / (double)(oxcf->timebase.num);
    1294             :   } else {
    1295           0 :     cpi->framerate = 30;
    1296             :   }
    1297             : 
    1298             :   /* If the reciprocal of the timebase seems like a reasonable framerate,
    1299             :    * then use that as a guess, otherwise use 30.
    1300             :    */
    1301           0 :   if (cpi->framerate > 180) cpi->framerate = 30;
    1302             : 
    1303           0 :   cpi->ref_framerate = cpi->framerate;
    1304             : 
    1305           0 :   cpi->ref_frame_flags = VP8_ALTR_FRAME | VP8_GOLD_FRAME | VP8_LAST_FRAME;
    1306             : 
    1307           0 :   cm->refresh_golden_frame = 0;
    1308           0 :   cm->refresh_last_frame = 1;
    1309           0 :   cm->refresh_entropy_probs = 1;
    1310             : 
    1311             :   /* change includes all joint functionality */
    1312           0 :   vp8_change_config(cpi, oxcf);
    1313             : 
    1314             :   /* Initialize active best and worst q and average q values. */
    1315           0 :   cpi->active_worst_quality = cpi->oxcf.worst_allowed_q;
    1316           0 :   cpi->active_best_quality = cpi->oxcf.best_allowed_q;
    1317           0 :   cpi->avg_frame_qindex = cpi->oxcf.worst_allowed_q;
    1318             : 
    1319             :   /* Initialise the starting buffer levels */
    1320           0 :   cpi->buffer_level = cpi->oxcf.starting_buffer_level;
    1321           0 :   cpi->bits_off_target = cpi->oxcf.starting_buffer_level;
    1322             : 
    1323           0 :   cpi->rolling_target_bits = cpi->av_per_frame_bandwidth;
    1324           0 :   cpi->rolling_actual_bits = cpi->av_per_frame_bandwidth;
    1325           0 :   cpi->long_rolling_target_bits = cpi->av_per_frame_bandwidth;
    1326           0 :   cpi->long_rolling_actual_bits = cpi->av_per_frame_bandwidth;
    1327             : 
    1328           0 :   cpi->total_actual_bits = 0;
    1329           0 :   cpi->total_target_vs_actual = 0;
    1330             : 
    1331             :   /* Temporal scalabilty */
    1332           0 :   if (cpi->oxcf.number_of_layers > 1) {
    1333             :     unsigned int i;
    1334           0 :     double prev_layer_framerate = 0;
    1335             : 
    1336           0 :     for (i = 0; i < cpi->oxcf.number_of_layers; ++i) {
    1337           0 :       init_temporal_layer_context(cpi, oxcf, i, prev_layer_framerate);
    1338           0 :       prev_layer_framerate =
    1339           0 :           cpi->output_framerate / cpi->oxcf.rate_decimator[i];
    1340             :     }
    1341             :   }
    1342             : 
    1343             : #if VP8_TEMPORAL_ALT_REF
    1344             :   {
    1345             :     int i;
    1346             : 
    1347           0 :     cpi->fixed_divide[0] = 0;
    1348             : 
    1349           0 :     for (i = 1; i < 512; ++i) cpi->fixed_divide[i] = 0x80000 / i;
    1350             :   }
    1351             : #endif
    1352           0 : }
    1353             : 
    1354           0 : static void update_layer_contexts(VP8_COMP *cpi) {
    1355           0 :   VP8_CONFIG *oxcf = &cpi->oxcf;
    1356             : 
    1357             :   /* Update snapshots of the layer contexts to reflect new parameters */
    1358           0 :   if (oxcf->number_of_layers > 1) {
    1359             :     unsigned int i;
    1360           0 :     double prev_layer_framerate = 0;
    1361             : 
    1362           0 :     assert(oxcf->number_of_layers <= VPX_TS_MAX_LAYERS);
    1363           0 :     for (i = 0; i < oxcf->number_of_layers && i < VPX_TS_MAX_LAYERS; ++i) {
    1364           0 :       LAYER_CONTEXT *lc = &cpi->layer_context[i];
    1365             : 
    1366           0 :       lc->framerate = cpi->ref_framerate / oxcf->rate_decimator[i];
    1367           0 :       lc->target_bandwidth = oxcf->target_bitrate[i] * 1000;
    1368             : 
    1369           0 :       lc->starting_buffer_level = rescale(
    1370           0 :           (int)oxcf->starting_buffer_level_in_ms, lc->target_bandwidth, 1000);
    1371             : 
    1372           0 :       if (oxcf->optimal_buffer_level == 0) {
    1373           0 :         lc->optimal_buffer_level = lc->target_bandwidth / 8;
    1374             :       } else {
    1375           0 :         lc->optimal_buffer_level = rescale(
    1376           0 :             (int)oxcf->optimal_buffer_level_in_ms, lc->target_bandwidth, 1000);
    1377             :       }
    1378             : 
    1379           0 :       if (oxcf->maximum_buffer_size == 0) {
    1380           0 :         lc->maximum_buffer_size = lc->target_bandwidth / 8;
    1381             :       } else {
    1382           0 :         lc->maximum_buffer_size = rescale((int)oxcf->maximum_buffer_size_in_ms,
    1383             :                                           lc->target_bandwidth, 1000);
    1384             :       }
    1385             : 
    1386             :       /* Work out the average size of a frame within this layer */
    1387           0 :       if (i > 0) {
    1388           0 :         lc->avg_frame_size_for_layer =
    1389           0 :             (int)((oxcf->target_bitrate[i] - oxcf->target_bitrate[i - 1]) *
    1390           0 :                   1000 / (lc->framerate - prev_layer_framerate));
    1391             :       }
    1392             : 
    1393           0 :       prev_layer_framerate = lc->framerate;
    1394             :     }
    1395             :   }
    1396           0 : }
    1397             : 
    1398           0 : void vp8_change_config(VP8_COMP *cpi, VP8_CONFIG *oxcf) {
    1399           0 :   VP8_COMMON *cm = &cpi->common;
    1400             :   int last_w, last_h;
    1401             :   unsigned int prev_number_of_layers;
    1402             : 
    1403           0 :   if (!cpi) return;
    1404             : 
    1405           0 :   if (!oxcf) return;
    1406             : 
    1407           0 :   if (cm->version != oxcf->Version) {
    1408           0 :     cm->version = oxcf->Version;
    1409           0 :     vp8_setup_version(cm);
    1410             :   }
    1411             : 
    1412           0 :   last_w = cpi->oxcf.Width;
    1413           0 :   last_h = cpi->oxcf.Height;
    1414           0 :   prev_number_of_layers = cpi->oxcf.number_of_layers;
    1415             : 
    1416           0 :   cpi->oxcf = *oxcf;
    1417             : 
    1418           0 :   switch (cpi->oxcf.Mode) {
    1419             :     case MODE_REALTIME:
    1420           0 :       cpi->pass = 0;
    1421           0 :       cpi->compressor_speed = 2;
    1422             : 
    1423           0 :       if (cpi->oxcf.cpu_used < -16) {
    1424           0 :         cpi->oxcf.cpu_used = -16;
    1425             :       }
    1426             : 
    1427           0 :       if (cpi->oxcf.cpu_used > 16) cpi->oxcf.cpu_used = 16;
    1428             : 
    1429           0 :       break;
    1430             : 
    1431             :     case MODE_GOODQUALITY:
    1432           0 :       cpi->pass = 0;
    1433           0 :       cpi->compressor_speed = 1;
    1434             : 
    1435           0 :       if (cpi->oxcf.cpu_used < -5) {
    1436           0 :         cpi->oxcf.cpu_used = -5;
    1437             :       }
    1438             : 
    1439           0 :       if (cpi->oxcf.cpu_used > 5) cpi->oxcf.cpu_used = 5;
    1440             : 
    1441           0 :       break;
    1442             : 
    1443             :     case MODE_BESTQUALITY:
    1444           0 :       cpi->pass = 0;
    1445           0 :       cpi->compressor_speed = 0;
    1446           0 :       break;
    1447             : 
    1448             :     case MODE_FIRSTPASS:
    1449           0 :       cpi->pass = 1;
    1450           0 :       cpi->compressor_speed = 1;
    1451           0 :       break;
    1452             :     case MODE_SECONDPASS:
    1453           0 :       cpi->pass = 2;
    1454           0 :       cpi->compressor_speed = 1;
    1455             : 
    1456           0 :       if (cpi->oxcf.cpu_used < -5) {
    1457           0 :         cpi->oxcf.cpu_used = -5;
    1458             :       }
    1459             : 
    1460           0 :       if (cpi->oxcf.cpu_used > 5) cpi->oxcf.cpu_used = 5;
    1461             : 
    1462           0 :       break;
    1463             :     case MODE_SECONDPASS_BEST:
    1464           0 :       cpi->pass = 2;
    1465           0 :       cpi->compressor_speed = 0;
    1466           0 :       break;
    1467             :   }
    1468             : 
    1469           0 :   if (cpi->pass == 0) cpi->auto_worst_q = 1;
    1470             : 
    1471           0 :   cpi->oxcf.worst_allowed_q = q_trans[oxcf->worst_allowed_q];
    1472           0 :   cpi->oxcf.best_allowed_q = q_trans[oxcf->best_allowed_q];
    1473           0 :   cpi->oxcf.cq_level = q_trans[cpi->oxcf.cq_level];
    1474             : 
    1475           0 :   if (oxcf->fixed_q >= 0) {
    1476           0 :     if (oxcf->worst_allowed_q < 0) {
    1477           0 :       cpi->oxcf.fixed_q = q_trans[0];
    1478             :     } else {
    1479           0 :       cpi->oxcf.fixed_q = q_trans[oxcf->worst_allowed_q];
    1480             :     }
    1481             : 
    1482           0 :     if (oxcf->alt_q < 0) {
    1483           0 :       cpi->oxcf.alt_q = q_trans[0];
    1484             :     } else {
    1485           0 :       cpi->oxcf.alt_q = q_trans[oxcf->alt_q];
    1486             :     }
    1487             : 
    1488           0 :     if (oxcf->key_q < 0) {
    1489           0 :       cpi->oxcf.key_q = q_trans[0];
    1490             :     } else {
    1491           0 :       cpi->oxcf.key_q = q_trans[oxcf->key_q];
    1492             :     }
    1493             : 
    1494           0 :     if (oxcf->gold_q < 0) {
    1495           0 :       cpi->oxcf.gold_q = q_trans[0];
    1496             :     } else {
    1497           0 :       cpi->oxcf.gold_q = q_trans[oxcf->gold_q];
    1498             :     }
    1499             :   }
    1500             : 
    1501           0 :   cpi->baseline_gf_interval =
    1502           0 :       cpi->oxcf.alt_freq ? cpi->oxcf.alt_freq : DEFAULT_GF_INTERVAL;
    1503             : 
    1504             :   // GF behavior for 1 pass CBR, used when error_resilience is off.
    1505           0 :   if (!cpi->oxcf.error_resilient_mode &&
    1506           0 :       cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER &&
    1507           0 :       cpi->oxcf.Mode == MODE_REALTIME)
    1508           0 :     cpi->baseline_gf_interval = cpi->gf_interval_onepass_cbr;
    1509             : 
    1510             : #if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
    1511             :   cpi->oxcf.token_partitions = 3;
    1512             : #endif
    1513             : 
    1514           0 :   if (cpi->oxcf.token_partitions >= 0 && cpi->oxcf.token_partitions <= 3) {
    1515           0 :     cm->multi_token_partition = (TOKEN_PARTITION)cpi->oxcf.token_partitions;
    1516             :   }
    1517             : 
    1518           0 :   setup_features(cpi);
    1519             : 
    1520             :   {
    1521             :     int i;
    1522             : 
    1523           0 :     for (i = 0; i < MAX_MB_SEGMENTS; ++i) {
    1524           0 :       cpi->segment_encode_breakout[i] = cpi->oxcf.encode_breakout;
    1525             :     }
    1526             :   }
    1527             : 
    1528             :   /* At the moment the first order values may not be > MAXQ */
    1529           0 :   if (cpi->oxcf.fixed_q > MAXQ) cpi->oxcf.fixed_q = MAXQ;
    1530             : 
    1531             :   /* local file playback mode == really big buffer */
    1532           0 :   if (cpi->oxcf.end_usage == USAGE_LOCAL_FILE_PLAYBACK) {
    1533           0 :     cpi->oxcf.starting_buffer_level = 60000;
    1534           0 :     cpi->oxcf.optimal_buffer_level = 60000;
    1535           0 :     cpi->oxcf.maximum_buffer_size = 240000;
    1536           0 :     cpi->oxcf.starting_buffer_level_in_ms = 60000;
    1537           0 :     cpi->oxcf.optimal_buffer_level_in_ms = 60000;
    1538           0 :     cpi->oxcf.maximum_buffer_size_in_ms = 240000;
    1539             :   }
    1540             : 
    1541             :   /* Convert target bandwidth from Kbit/s to Bit/s */
    1542           0 :   cpi->oxcf.target_bandwidth *= 1000;
    1543             : 
    1544           0 :   cpi->oxcf.starting_buffer_level = rescale(
    1545           0 :       (int)cpi->oxcf.starting_buffer_level, cpi->oxcf.target_bandwidth, 1000);
    1546             : 
    1547             :   /* Set or reset optimal and maximum buffer levels. */
    1548           0 :   if (cpi->oxcf.optimal_buffer_level == 0) {
    1549           0 :     cpi->oxcf.optimal_buffer_level = cpi->oxcf.target_bandwidth / 8;
    1550             :   } else {
    1551           0 :     cpi->oxcf.optimal_buffer_level = rescale(
    1552           0 :         (int)cpi->oxcf.optimal_buffer_level, cpi->oxcf.target_bandwidth, 1000);
    1553             :   }
    1554             : 
    1555           0 :   if (cpi->oxcf.maximum_buffer_size == 0) {
    1556           0 :     cpi->oxcf.maximum_buffer_size = cpi->oxcf.target_bandwidth / 8;
    1557             :   } else {
    1558           0 :     cpi->oxcf.maximum_buffer_size = rescale((int)cpi->oxcf.maximum_buffer_size,
    1559           0 :                                             cpi->oxcf.target_bandwidth, 1000);
    1560             :   }
    1561             :   // Under a configuration change, where maximum_buffer_size may change,
    1562             :   // keep buffer level clipped to the maximum allowed buffer size.
    1563           0 :   if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size) {
    1564           0 :     cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
    1565           0 :     cpi->buffer_level = cpi->bits_off_target;
    1566             :   }
    1567             : 
    1568             :   /* Set up frame rate and related parameters rate control values. */
    1569           0 :   vp8_new_framerate(cpi, cpi->framerate);
    1570             : 
    1571             :   /* Set absolute upper and lower quality limits */
    1572           0 :   cpi->worst_quality = cpi->oxcf.worst_allowed_q;
    1573           0 :   cpi->best_quality = cpi->oxcf.best_allowed_q;
    1574             : 
    1575             :   /* active values should only be modified if out of new range */
    1576           0 :   if (cpi->active_worst_quality > cpi->oxcf.worst_allowed_q) {
    1577           0 :     cpi->active_worst_quality = cpi->oxcf.worst_allowed_q;
    1578             :   }
    1579             :   /* less likely */
    1580           0 :   else if (cpi->active_worst_quality < cpi->oxcf.best_allowed_q) {
    1581           0 :     cpi->active_worst_quality = cpi->oxcf.best_allowed_q;
    1582             :   }
    1583           0 :   if (cpi->active_best_quality < cpi->oxcf.best_allowed_q) {
    1584           0 :     cpi->active_best_quality = cpi->oxcf.best_allowed_q;
    1585             :   }
    1586             :   /* less likely */
    1587           0 :   else if (cpi->active_best_quality > cpi->oxcf.worst_allowed_q) {
    1588           0 :     cpi->active_best_quality = cpi->oxcf.worst_allowed_q;
    1589             :   }
    1590             : 
    1591           0 :   cpi->buffered_mode = cpi->oxcf.optimal_buffer_level > 0;
    1592             : 
    1593           0 :   cpi->cq_target_quality = cpi->oxcf.cq_level;
    1594             : 
    1595             :   /* Only allow dropped frames in buffered mode */
    1596           0 :   cpi->drop_frames_allowed = cpi->oxcf.allow_df && cpi->buffered_mode;
    1597             : 
    1598           0 :   cpi->target_bandwidth = cpi->oxcf.target_bandwidth;
    1599             : 
    1600             :   // Check if the number of temporal layers has changed, and if so reset the
    1601             :   // pattern counter and set/initialize the temporal layer context for the
    1602             :   // new layer configuration.
    1603           0 :   if (cpi->oxcf.number_of_layers != prev_number_of_layers) {
    1604             :     // If the number of temporal layers are changed we must start at the
    1605             :     // base of the pattern cycle, so set the layer id to 0 and reset
    1606             :     // the temporal pattern counter.
    1607           0 :     if (cpi->temporal_layer_id > 0) {
    1608           0 :       cpi->temporal_layer_id = 0;
    1609             :     }
    1610           0 :     cpi->temporal_pattern_counter = 0;
    1611           0 :     reset_temporal_layer_change(cpi, oxcf, prev_number_of_layers);
    1612             :   }
    1613             : 
    1614           0 :   if (!cpi->initial_width) {
    1615           0 :     cpi->initial_width = cpi->oxcf.Width;
    1616           0 :     cpi->initial_height = cpi->oxcf.Height;
    1617             :   }
    1618             : 
    1619           0 :   cm->Width = cpi->oxcf.Width;
    1620           0 :   cm->Height = cpi->oxcf.Height;
    1621           0 :   assert(cm->Width <= cpi->initial_width);
    1622           0 :   assert(cm->Height <= cpi->initial_height);
    1623             : 
    1624             :   /* TODO(jkoleszar): if an internal spatial resampling is active,
    1625             :    * and we downsize the input image, maybe we should clear the
    1626             :    * internal scale immediately rather than waiting for it to
    1627             :    * correct.
    1628             :    */
    1629             : 
    1630             :   /* VP8 sharpness level mapping 0-7 (vs 0-10 in general VPx dialogs) */
    1631           0 :   if (cpi->oxcf.Sharpness > 7) cpi->oxcf.Sharpness = 7;
    1632             : 
    1633           0 :   cm->sharpness_level = cpi->oxcf.Sharpness;
    1634             : 
    1635           0 :   if (cm->horiz_scale != NORMAL || cm->vert_scale != NORMAL) {
    1636           0 :     int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
    1637           0 :     int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
    1638             : 
    1639           0 :     Scale2Ratio(cm->horiz_scale, &hr, &hs);
    1640           0 :     Scale2Ratio(cm->vert_scale, &vr, &vs);
    1641             : 
    1642             :     /* always go to the next whole number */
    1643           0 :     cm->Width = (hs - 1 + cpi->oxcf.Width * hr) / hs;
    1644           0 :     cm->Height = (vs - 1 + cpi->oxcf.Height * vr) / vs;
    1645             :   }
    1646             : 
    1647           0 :   if (last_w != cpi->oxcf.Width || last_h != cpi->oxcf.Height) {
    1648           0 :     cpi->force_next_frame_intra = 1;
    1649             :   }
    1650             : 
    1651           0 :   if (((cm->Width + 15) & ~15) != cm->yv12_fb[cm->lst_fb_idx].y_width ||
    1652           0 :       ((cm->Height + 15) & ~15) != cm->yv12_fb[cm->lst_fb_idx].y_height ||
    1653           0 :       cm->yv12_fb[cm->lst_fb_idx].y_width == 0) {
    1654           0 :     dealloc_raw_frame_buffers(cpi);
    1655           0 :     alloc_raw_frame_buffers(cpi);
    1656           0 :     vp8_alloc_compressor_data(cpi);
    1657             :   }
    1658             : 
    1659           0 :   if (cpi->oxcf.fixed_q >= 0) {
    1660           0 :     cpi->last_q[0] = cpi->oxcf.fixed_q;
    1661           0 :     cpi->last_q[1] = cpi->oxcf.fixed_q;
    1662             :   }
    1663             : 
    1664           0 :   cpi->Speed = cpi->oxcf.cpu_used;
    1665             : 
    1666             :   /* force to allowlag to 0 if lag_in_frames is 0; */
    1667           0 :   if (cpi->oxcf.lag_in_frames == 0) {
    1668           0 :     cpi->oxcf.allow_lag = 0;
    1669             :   }
    1670             :   /* Limit on lag buffers as these are not currently dynamically allocated */
    1671           0 :   else if (cpi->oxcf.lag_in_frames > MAX_LAG_BUFFERS) {
    1672           0 :     cpi->oxcf.lag_in_frames = MAX_LAG_BUFFERS;
    1673             :   }
    1674             : 
    1675             :   /* YX Temp */
    1676           0 :   cpi->alt_ref_source = NULL;
    1677           0 :   cpi->is_src_frame_alt_ref = 0;
    1678             : 
    1679             : #if CONFIG_TEMPORAL_DENOISING
    1680           0 :   if (cpi->oxcf.noise_sensitivity) {
    1681           0 :     if (!cpi->denoiser.yv12_mc_running_avg.buffer_alloc) {
    1682           0 :       int width = (cpi->oxcf.Width + 15) & ~15;
    1683           0 :       int height = (cpi->oxcf.Height + 15) & ~15;
    1684           0 :       if (vp8_denoiser_allocate(&cpi->denoiser, width, height, cm->mb_rows,
    1685             :                                 cm->mb_cols, cpi->oxcf.noise_sensitivity)) {
    1686           0 :         vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
    1687             :                            "Failed to allocate denoiser");
    1688             :       }
    1689             :     }
    1690             :   }
    1691             : #endif
    1692             : 
    1693             : #if 0
    1694             :     /* Experimental RD Code */
    1695             :     cpi->frame_distortion = 0;
    1696             :     cpi->last_frame_distortion = 0;
    1697             : #endif
    1698             : }
    1699             : 
    1700             : #ifndef M_LOG2_E
    1701             : #define M_LOG2_E 0.693147180559945309417
    1702             : #endif
    1703             : #define log2f(x) (log(x) / (float)M_LOG2_E)
    1704             : 
    1705           0 : static void cal_mvsadcosts(int *mvsadcost[2]) {
    1706           0 :   int i = 1;
    1707             : 
    1708           0 :   mvsadcost[0][0] = 300;
    1709           0 :   mvsadcost[1][0] = 300;
    1710             : 
    1711             :   do {
    1712           0 :     double z = 256 * (2 * (log2f(8 * i) + .6));
    1713           0 :     mvsadcost[0][i] = (int)z;
    1714           0 :     mvsadcost[1][i] = (int)z;
    1715           0 :     mvsadcost[0][-i] = (int)z;
    1716           0 :     mvsadcost[1][-i] = (int)z;
    1717           0 :   } while (++i <= mvfp_max);
    1718           0 : }
    1719             : 
    1720           0 : struct VP8_COMP *vp8_create_compressor(VP8_CONFIG *oxcf) {
    1721             :   int i;
    1722             : 
    1723             :   VP8_COMP *cpi;
    1724             :   VP8_COMMON *cm;
    1725             : 
    1726           0 :   cpi = vpx_memalign(32, sizeof(VP8_COMP));
    1727             :   /* Check that the CPI instance is valid */
    1728           0 :   if (!cpi) return 0;
    1729             : 
    1730           0 :   cm = &cpi->common;
    1731             : 
    1732           0 :   memset(cpi, 0, sizeof(VP8_COMP));
    1733             : 
    1734           0 :   if (setjmp(cm->error.jmp)) {
    1735           0 :     cpi->common.error.setjmp = 0;
    1736           0 :     vp8_remove_compressor(&cpi);
    1737           0 :     return 0;
    1738             :   }
    1739             : 
    1740           0 :   cpi->common.error.setjmp = 1;
    1741             : 
    1742           0 :   CHECK_MEM_ERROR(cpi->mb.ss, vpx_calloc(sizeof(search_site),
    1743             :                                          (MAX_MVSEARCH_STEPS * 8) + 1));
    1744             : 
    1745           0 :   vp8_create_common(&cpi->common);
    1746             : 
    1747           0 :   init_config(cpi, oxcf);
    1748             : 
    1749           0 :   memcpy(cpi->base_skip_false_prob, vp8cx_base_skip_false_prob,
    1750             :          sizeof(vp8cx_base_skip_false_prob));
    1751           0 :   cpi->common.current_video_frame = 0;
    1752           0 :   cpi->temporal_pattern_counter = 0;
    1753           0 :   cpi->temporal_layer_id = -1;
    1754           0 :   cpi->kf_overspend_bits = 0;
    1755           0 :   cpi->kf_bitrate_adjustment = 0;
    1756           0 :   cpi->frames_till_gf_update_due = 0;
    1757           0 :   cpi->gf_overspend_bits = 0;
    1758           0 :   cpi->non_gf_bitrate_adjustment = 0;
    1759           0 :   cpi->prob_last_coded = 128;
    1760           0 :   cpi->prob_gf_coded = 128;
    1761           0 :   cpi->prob_intra_coded = 63;
    1762             : 
    1763             :   /* Prime the recent reference frame usage counters.
    1764             :    * Hereafter they will be maintained as a sort of moving average
    1765             :    */
    1766           0 :   cpi->recent_ref_frame_usage[INTRA_FRAME] = 1;
    1767           0 :   cpi->recent_ref_frame_usage[LAST_FRAME] = 1;
    1768           0 :   cpi->recent_ref_frame_usage[GOLDEN_FRAME] = 1;
    1769           0 :   cpi->recent_ref_frame_usage[ALTREF_FRAME] = 1;
    1770             : 
    1771             :   /* Set reference frame sign bias for ALTREF frame to 1 (for now) */
    1772           0 :   cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 1;
    1773             : 
    1774           0 :   cpi->twopass.gf_decay_rate = 0;
    1775           0 :   cpi->baseline_gf_interval = DEFAULT_GF_INTERVAL;
    1776             : 
    1777           0 :   cpi->gold_is_last = 0;
    1778           0 :   cpi->alt_is_last = 0;
    1779           0 :   cpi->gold_is_alt = 0;
    1780             : 
    1781           0 :   cpi->active_map_enabled = 0;
    1782             : 
    1783             : #if 0
    1784             :     /* Experimental code for lagged and one pass */
    1785             :     /* Initialise one_pass GF frames stats */
    1786             :     /* Update stats used for GF selection */
    1787             :     if (cpi->pass == 0)
    1788             :     {
    1789             :         cpi->one_pass_frame_index = 0;
    1790             : 
    1791             :         for (i = 0; i < MAX_LAG_BUFFERS; ++i)
    1792             :         {
    1793             :             cpi->one_pass_frame_stats[i].frames_so_far = 0;
    1794             :             cpi->one_pass_frame_stats[i].frame_intra_error = 0.0;
    1795             :             cpi->one_pass_frame_stats[i].frame_coded_error = 0.0;
    1796             :             cpi->one_pass_frame_stats[i].frame_pcnt_inter = 0.0;
    1797             :             cpi->one_pass_frame_stats[i].frame_pcnt_motion = 0.0;
    1798             :             cpi->one_pass_frame_stats[i].frame_mvr = 0.0;
    1799             :             cpi->one_pass_frame_stats[i].frame_mvr_abs = 0.0;
    1800             :             cpi->one_pass_frame_stats[i].frame_mvc = 0.0;
    1801             :             cpi->one_pass_frame_stats[i].frame_mvc_abs = 0.0;
    1802             :         }
    1803             :     }
    1804             : #endif
    1805             : 
    1806           0 :   cpi->mse_source_denoised = 0;
    1807             : 
    1808             :   /* Should we use the cyclic refresh method.
    1809             :    * Currently there is no external control for this.
    1810             :    * Enable it for error_resilient_mode, or for 1 pass CBR mode.
    1811             :    */
    1812           0 :   cpi->cyclic_refresh_mode_enabled =
    1813           0 :       (cpi->oxcf.error_resilient_mode ||
    1814           0 :        (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER &&
    1815           0 :         cpi->oxcf.Mode <= 2));
    1816           0 :   cpi->cyclic_refresh_mode_max_mbs_perframe =
    1817           0 :       (cpi->common.mb_rows * cpi->common.mb_cols) / 7;
    1818           0 :   if (cpi->oxcf.number_of_layers == 1) {
    1819           0 :     cpi->cyclic_refresh_mode_max_mbs_perframe =
    1820           0 :         (cpi->common.mb_rows * cpi->common.mb_cols) / 20;
    1821           0 :   } else if (cpi->oxcf.number_of_layers == 2) {
    1822           0 :     cpi->cyclic_refresh_mode_max_mbs_perframe =
    1823           0 :         (cpi->common.mb_rows * cpi->common.mb_cols) / 10;
    1824             :   }
    1825           0 :   cpi->cyclic_refresh_mode_index = 0;
    1826           0 :   cpi->cyclic_refresh_q = 32;
    1827             : 
    1828             :   // GF behavior for 1 pass CBR, used when error_resilience is off.
    1829           0 :   cpi->gf_update_onepass_cbr = 0;
    1830           0 :   cpi->gf_noboost_onepass_cbr = 0;
    1831           0 :   if (!cpi->oxcf.error_resilient_mode &&
    1832           0 :       cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER && cpi->oxcf.Mode <= 2) {
    1833           0 :     cpi->gf_update_onepass_cbr = 1;
    1834           0 :     cpi->gf_noboost_onepass_cbr = 1;
    1835           0 :     cpi->gf_interval_onepass_cbr =
    1836           0 :         cpi->cyclic_refresh_mode_max_mbs_perframe > 0
    1837           0 :             ? (2 * (cpi->common.mb_rows * cpi->common.mb_cols) /
    1838           0 :                cpi->cyclic_refresh_mode_max_mbs_perframe)
    1839           0 :             : 10;
    1840           0 :     cpi->gf_interval_onepass_cbr =
    1841           0 :         VPXMIN(40, VPXMAX(6, cpi->gf_interval_onepass_cbr));
    1842           0 :     cpi->baseline_gf_interval = cpi->gf_interval_onepass_cbr;
    1843             :   }
    1844             : 
    1845           0 :   if (cpi->cyclic_refresh_mode_enabled) {
    1846           0 :     CHECK_MEM_ERROR(cpi->cyclic_refresh_map,
    1847             :                     vpx_calloc((cpi->common.mb_rows * cpi->common.mb_cols), 1));
    1848             :   } else {
    1849           0 :     cpi->cyclic_refresh_map = (signed char *)NULL;
    1850             :   }
    1851             : 
    1852           0 :   CHECK_MEM_ERROR(cpi->consec_zero_last,
    1853             :                   vpx_calloc(cm->mb_rows * cm->mb_cols, 1));
    1854           0 :   CHECK_MEM_ERROR(cpi->consec_zero_last_mvbias,
    1855             :                   vpx_calloc((cpi->common.mb_rows * cpi->common.mb_cols), 1));
    1856             : 
    1857             : #ifdef VP8_ENTROPY_STATS
    1858             :   init_context_counters();
    1859             : #endif
    1860             : 
    1861             :   /*Initialize the feed-forward activity masking.*/
    1862           0 :   cpi->activity_avg = 90 << 12;
    1863             : 
    1864             :   /* Give a sensible default for the first frame. */
    1865           0 :   cpi->frames_since_key = 8;
    1866           0 :   cpi->key_frame_frequency = cpi->oxcf.key_freq;
    1867           0 :   cpi->this_key_frame_forced = 0;
    1868           0 :   cpi->next_key_frame_forced = 0;
    1869             : 
    1870           0 :   cpi->source_alt_ref_pending = 0;
    1871           0 :   cpi->source_alt_ref_active = 0;
    1872           0 :   cpi->common.refresh_alt_ref_frame = 0;
    1873             : 
    1874           0 :   cpi->force_maxqp = 0;
    1875             : 
    1876           0 :   cpi->b_calculate_psnr = CONFIG_INTERNAL_STATS;
    1877             : #if CONFIG_INTERNAL_STATS
    1878             :   cpi->b_calculate_ssimg = 0;
    1879             : 
    1880             :   cpi->count = 0;
    1881             :   cpi->bytes = 0;
    1882             : 
    1883             :   if (cpi->b_calculate_psnr) {
    1884             :     cpi->total_sq_error = 0.0;
    1885             :     cpi->total_sq_error2 = 0.0;
    1886             :     cpi->total_y = 0.0;
    1887             :     cpi->total_u = 0.0;
    1888             :     cpi->total_v = 0.0;
    1889             :     cpi->total = 0.0;
    1890             :     cpi->totalp_y = 0.0;
    1891             :     cpi->totalp_u = 0.0;
    1892             :     cpi->totalp_v = 0.0;
    1893             :     cpi->totalp = 0.0;
    1894             :     cpi->tot_recode_hits = 0;
    1895             :     cpi->summed_quality = 0;
    1896             :     cpi->summed_weights = 0;
    1897             :   }
    1898             : 
    1899             : #endif
    1900             : 
    1901           0 :   cpi->first_time_stamp_ever = 0x7FFFFFFF;
    1902             : 
    1903           0 :   cpi->frames_till_gf_update_due = 0;
    1904           0 :   cpi->key_frame_count = 1;
    1905             : 
    1906           0 :   cpi->ni_av_qi = cpi->oxcf.worst_allowed_q;
    1907           0 :   cpi->ni_tot_qi = 0;
    1908           0 :   cpi->ni_frames = 0;
    1909           0 :   cpi->total_byte_count = 0;
    1910             : 
    1911           0 :   cpi->drop_frame = 0;
    1912             : 
    1913           0 :   cpi->rate_correction_factor = 1.0;
    1914           0 :   cpi->key_frame_rate_correction_factor = 1.0;
    1915           0 :   cpi->gf_rate_correction_factor = 1.0;
    1916           0 :   cpi->twopass.est_max_qcorrection_factor = 1.0;
    1917             : 
    1918           0 :   for (i = 0; i < KEY_FRAME_CONTEXT; ++i) {
    1919           0 :     cpi->prior_key_frame_distance[i] = (int)cpi->output_framerate;
    1920             :   }
    1921             : 
    1922             : #ifdef OUTPUT_YUV_SRC
    1923             :   yuv_file = fopen("bd.yuv", "ab");
    1924             : #endif
    1925             : #ifdef OUTPUT_YUV_DENOISED
    1926             :   yuv_denoised_file = fopen("denoised.yuv", "ab");
    1927             : #endif
    1928             : 
    1929             : #if 0
    1930             :     framepsnr = fopen("framepsnr.stt", "a");
    1931             :     kf_list = fopen("kf_list.stt", "w");
    1932             : #endif
    1933             : 
    1934           0 :   cpi->output_pkt_list = oxcf->output_pkt_list;
    1935             : 
    1936             : #if !CONFIG_REALTIME_ONLY
    1937             : 
    1938           0 :   if (cpi->pass == 1) {
    1939           0 :     vp8_init_first_pass(cpi);
    1940           0 :   } else if (cpi->pass == 2) {
    1941           0 :     size_t packet_sz = sizeof(FIRSTPASS_STATS);
    1942           0 :     int packets = (int)(oxcf->two_pass_stats_in.sz / packet_sz);
    1943             : 
    1944           0 :     cpi->twopass.stats_in_start = oxcf->two_pass_stats_in.buf;
    1945           0 :     cpi->twopass.stats_in = cpi->twopass.stats_in_start;
    1946           0 :     cpi->twopass.stats_in_end =
    1947           0 :         (void *)((char *)cpi->twopass.stats_in + (packets - 1) * packet_sz);
    1948           0 :     vp8_init_second_pass(cpi);
    1949             :   }
    1950             : 
    1951             : #endif
    1952             : 
    1953           0 :   if (cpi->compressor_speed == 2) {
    1954           0 :     cpi->avg_encode_time = 0;
    1955           0 :     cpi->avg_pick_mode_time = 0;
    1956             :   }
    1957             : 
    1958           0 :   vp8_set_speed_features(cpi);
    1959             : 
    1960             :   /* Set starting values of RD threshold multipliers (128 = *1) */
    1961           0 :   for (i = 0; i < MAX_MODES; ++i) {
    1962           0 :     cpi->mb.rd_thresh_mult[i] = 128;
    1963             :   }
    1964             : 
    1965             : #ifdef VP8_ENTROPY_STATS
    1966             :   init_mv_ref_counts();
    1967             : #endif
    1968             : 
    1969             : #if CONFIG_MULTITHREAD
    1970           0 :   if (vp8cx_create_encoder_threads(cpi)) {
    1971           0 :     vp8_remove_compressor(&cpi);
    1972           0 :     return 0;
    1973             :   }
    1974             : #endif
    1975             : 
    1976           0 :   cpi->fn_ptr[BLOCK_16X16].sdf = vpx_sad16x16;
    1977           0 :   cpi->fn_ptr[BLOCK_16X16].vf = vpx_variance16x16;
    1978           0 :   cpi->fn_ptr[BLOCK_16X16].svf = vpx_sub_pixel_variance16x16;
    1979           0 :   cpi->fn_ptr[BLOCK_16X16].sdx3f = vpx_sad16x16x3;
    1980           0 :   cpi->fn_ptr[BLOCK_16X16].sdx8f = vpx_sad16x16x8;
    1981           0 :   cpi->fn_ptr[BLOCK_16X16].sdx4df = vpx_sad16x16x4d;
    1982             : 
    1983           0 :   cpi->fn_ptr[BLOCK_16X8].sdf = vpx_sad16x8;
    1984           0 :   cpi->fn_ptr[BLOCK_16X8].vf = vpx_variance16x8;
    1985           0 :   cpi->fn_ptr[BLOCK_16X8].svf = vpx_sub_pixel_variance16x8;
    1986           0 :   cpi->fn_ptr[BLOCK_16X8].sdx3f = vpx_sad16x8x3;
    1987           0 :   cpi->fn_ptr[BLOCK_16X8].sdx8f = vpx_sad16x8x8;
    1988           0 :   cpi->fn_ptr[BLOCK_16X8].sdx4df = vpx_sad16x8x4d;
    1989             : 
    1990           0 :   cpi->fn_ptr[BLOCK_8X16].sdf = vpx_sad8x16;
    1991           0 :   cpi->fn_ptr[BLOCK_8X16].vf = vpx_variance8x16;
    1992           0 :   cpi->fn_ptr[BLOCK_8X16].svf = vpx_sub_pixel_variance8x16;
    1993           0 :   cpi->fn_ptr[BLOCK_8X16].sdx3f = vpx_sad8x16x3;
    1994           0 :   cpi->fn_ptr[BLOCK_8X16].sdx8f = vpx_sad8x16x8;
    1995           0 :   cpi->fn_ptr[BLOCK_8X16].sdx4df = vpx_sad8x16x4d;
    1996             : 
    1997           0 :   cpi->fn_ptr[BLOCK_8X8].sdf = vpx_sad8x8;
    1998           0 :   cpi->fn_ptr[BLOCK_8X8].vf = vpx_variance8x8;
    1999           0 :   cpi->fn_ptr[BLOCK_8X8].svf = vpx_sub_pixel_variance8x8;
    2000           0 :   cpi->fn_ptr[BLOCK_8X8].sdx3f = vpx_sad8x8x3;
    2001           0 :   cpi->fn_ptr[BLOCK_8X8].sdx8f = vpx_sad8x8x8;
    2002           0 :   cpi->fn_ptr[BLOCK_8X8].sdx4df = vpx_sad8x8x4d;
    2003             : 
    2004           0 :   cpi->fn_ptr[BLOCK_4X4].sdf = vpx_sad4x4;
    2005           0 :   cpi->fn_ptr[BLOCK_4X4].vf = vpx_variance4x4;
    2006           0 :   cpi->fn_ptr[BLOCK_4X4].svf = vpx_sub_pixel_variance4x4;
    2007           0 :   cpi->fn_ptr[BLOCK_4X4].sdx3f = vpx_sad4x4x3;
    2008           0 :   cpi->fn_ptr[BLOCK_4X4].sdx8f = vpx_sad4x4x8;
    2009           0 :   cpi->fn_ptr[BLOCK_4X4].sdx4df = vpx_sad4x4x4d;
    2010             : 
    2011             : #if ARCH_X86 || ARCH_X86_64
    2012           0 :   cpi->fn_ptr[BLOCK_16X16].copymem = vp8_copy32xn;
    2013           0 :   cpi->fn_ptr[BLOCK_16X8].copymem = vp8_copy32xn;
    2014           0 :   cpi->fn_ptr[BLOCK_8X16].copymem = vp8_copy32xn;
    2015           0 :   cpi->fn_ptr[BLOCK_8X8].copymem = vp8_copy32xn;
    2016           0 :   cpi->fn_ptr[BLOCK_4X4].copymem = vp8_copy32xn;
    2017             : #endif
    2018             : 
    2019           0 :   cpi->full_search_sad = vp8_full_search_sad;
    2020           0 :   cpi->diamond_search_sad = vp8_diamond_search_sad;
    2021           0 :   cpi->refining_search_sad = vp8_refining_search_sad;
    2022             : 
    2023             :   /* make sure frame 1 is okay */
    2024           0 :   cpi->mb.error_bins[0] = cpi->common.MBs;
    2025             : 
    2026             :   /* vp8cx_init_quantizer() is first called here. Add check in
    2027             :    * vp8cx_frame_init_quantizer() so that vp8cx_init_quantizer is only
    2028             :    * called later when needed. This will avoid unnecessary calls of
    2029             :    * vp8cx_init_quantizer() for every frame.
    2030             :    */
    2031           0 :   vp8cx_init_quantizer(cpi);
    2032             : 
    2033           0 :   vp8_loop_filter_init(cm);
    2034             : 
    2035           0 :   cpi->common.error.setjmp = 0;
    2036             : 
    2037             : #if CONFIG_MULTI_RES_ENCODING
    2038             : 
    2039             :   /* Calculate # of MBs in a row in lower-resolution level image. */
    2040           0 :   if (cpi->oxcf.mr_encoder_id > 0) vp8_cal_low_res_mb_cols(cpi);
    2041             : 
    2042             : #endif
    2043             : 
    2044             :   /* setup RD costs to MACROBLOCK struct */
    2045             : 
    2046           0 :   cpi->mb.mvcost[0] = &cpi->rd_costs.mvcosts[0][mv_max + 1];
    2047           0 :   cpi->mb.mvcost[1] = &cpi->rd_costs.mvcosts[1][mv_max + 1];
    2048           0 :   cpi->mb.mvsadcost[0] = &cpi->rd_costs.mvsadcosts[0][mvfp_max + 1];
    2049           0 :   cpi->mb.mvsadcost[1] = &cpi->rd_costs.mvsadcosts[1][mvfp_max + 1];
    2050             : 
    2051           0 :   cal_mvsadcosts(cpi->mb.mvsadcost);
    2052             : 
    2053           0 :   cpi->mb.mbmode_cost = cpi->rd_costs.mbmode_cost;
    2054           0 :   cpi->mb.intra_uv_mode_cost = cpi->rd_costs.intra_uv_mode_cost;
    2055           0 :   cpi->mb.bmode_costs = cpi->rd_costs.bmode_costs;
    2056           0 :   cpi->mb.inter_bmode_costs = cpi->rd_costs.inter_bmode_costs;
    2057           0 :   cpi->mb.token_costs = cpi->rd_costs.token_costs;
    2058             : 
    2059             :   /* setup block ptrs & offsets */
    2060           0 :   vp8_setup_block_ptrs(&cpi->mb);
    2061           0 :   vp8_setup_block_dptrs(&cpi->mb.e_mbd);
    2062             : 
    2063           0 :   return cpi;
    2064             : }
    2065             : 
    2066           0 : void vp8_remove_compressor(VP8_COMP **ptr) {
    2067           0 :   VP8_COMP *cpi = *ptr;
    2068             : 
    2069           0 :   if (!cpi) return;
    2070             : 
    2071           0 :   if (cpi && (cpi->common.current_video_frame > 0)) {
    2072             : #if !CONFIG_REALTIME_ONLY
    2073             : 
    2074           0 :     if (cpi->pass == 2) {
    2075           0 :       vp8_end_second_pass(cpi);
    2076             :     }
    2077             : 
    2078             : #endif
    2079             : 
    2080             : #ifdef VP8_ENTROPY_STATS
    2081             :     print_context_counters();
    2082             :     print_tree_update_probs();
    2083             :     print_mode_context();
    2084             : #endif
    2085             : 
    2086             : #if CONFIG_INTERNAL_STATS
    2087             : 
    2088             :     if (cpi->pass != 1) {
    2089             :       FILE *f = fopen("opsnr.stt", "a");
    2090             :       double time_encoded =
    2091             :           (cpi->last_end_time_stamp_seen - cpi->first_time_stamp_ever) /
    2092             :           10000000.000;
    2093             :       double total_encode_time =
    2094             :           (cpi->time_receive_data + cpi->time_compress_data) / 1000.000;
    2095             :       double dr = (double)cpi->bytes * 8.0 / 1000.0 / time_encoded;
    2096             :       const double target_rate = (double)cpi->oxcf.target_bandwidth / 1000;
    2097             :       const double rate_err = ((100.0 * (dr - target_rate)) / target_rate);
    2098             : 
    2099             :       if (cpi->b_calculate_psnr) {
    2100             :         if (cpi->oxcf.number_of_layers > 1) {
    2101             :           int i;
    2102             : 
    2103             :           fprintf(f,
    2104             :                   "Layer\tBitrate\tAVGPsnr\tGLBPsnr\tAVPsnrP\t"
    2105             :                   "GLPsnrP\tVPXSSIM\n");
    2106             :           for (i = 0; i < (int)cpi->oxcf.number_of_layers; ++i) {
    2107             :             double dr =
    2108             :                 (double)cpi->bytes_in_layer[i] * 8.0 / 1000.0 / time_encoded;
    2109             :             double samples = 3.0 / 2 * cpi->frames_in_layer[i] *
    2110             :                              cpi->common.Width * cpi->common.Height;
    2111             :             double total_psnr =
    2112             :                 vpx_sse_to_psnr(samples, 255.0, cpi->total_error2[i]);
    2113             :             double total_psnr2 =
    2114             :                 vpx_sse_to_psnr(samples, 255.0, cpi->total_error2_p[i]);
    2115             :             double total_ssim =
    2116             :                 100 * pow(cpi->sum_ssim[i] / cpi->sum_weights[i], 8.0);
    2117             : 
    2118             :             fprintf(f,
    2119             :                     "%5d\t%7.3f\t%7.3f\t%7.3f\t%7.3f\t"
    2120             :                     "%7.3f\t%7.3f\n",
    2121             :                     i, dr, cpi->sum_psnr[i] / cpi->frames_in_layer[i],
    2122             :                     total_psnr, cpi->sum_psnr_p[i] / cpi->frames_in_layer[i],
    2123             :                     total_psnr2, total_ssim);
    2124             :           }
    2125             :         } else {
    2126             :           double samples =
    2127             :               3.0 / 2 * cpi->count * cpi->common.Width * cpi->common.Height;
    2128             :           double total_psnr =
    2129             :               vpx_sse_to_psnr(samples, 255.0, cpi->total_sq_error);
    2130             :           double total_psnr2 =
    2131             :               vpx_sse_to_psnr(samples, 255.0, cpi->total_sq_error2);
    2132             :           double total_ssim =
    2133             :               100 * pow(cpi->summed_quality / cpi->summed_weights, 8.0);
    2134             : 
    2135             :           fprintf(f,
    2136             :                   "Bitrate\tAVGPsnr\tGLBPsnr\tAVPsnrP\t"
    2137             :                   "GLPsnrP\tVPXSSIM\n");
    2138             :           fprintf(f,
    2139             :                   "%7.3f\t%7.3f\t%7.3f\t%7.3f\t%7.3f\t"
    2140             :                   "%7.3f\n",
    2141             :                   dr, cpi->total / cpi->count, total_psnr,
    2142             :                   cpi->totalp / cpi->count, total_psnr2, total_ssim);
    2143             :         }
    2144             :       }
    2145             :       fclose(f);
    2146             : #if 0
    2147             :             f = fopen("qskip.stt", "a");
    2148             :             fprintf(f, "minq:%d -maxq:%d skiptrue:skipfalse = %d:%d\n", cpi->oxcf.best_allowed_q, cpi->oxcf.worst_allowed_q, skiptruecount, skipfalsecount);
    2149             :             fclose(f);
    2150             : #endif
    2151             :     }
    2152             : 
    2153             : #endif
    2154             : 
    2155             : #ifdef SPEEDSTATS
    2156             : 
    2157             :     if (cpi->compressor_speed == 2) {
    2158             :       int i;
    2159             :       FILE *f = fopen("cxspeed.stt", "a");
    2160             :       cnt_pm /= cpi->common.MBs;
    2161             : 
    2162             :       for (i = 0; i < 16; ++i) fprintf(f, "%5d", frames_at_speed[i]);
    2163             : 
    2164             :       fprintf(f, "\n");
    2165             :       fclose(f);
    2166             :     }
    2167             : 
    2168             : #endif
    2169             : 
    2170             : #ifdef MODE_STATS
    2171             :     {
    2172             :       extern int count_mb_seg[4];
    2173             :       FILE *f = fopen("modes.stt", "a");
    2174             :       double dr = (double)cpi->framerate * (double)bytes * (double)8 /
    2175             :                   (double)count / (double)1000;
    2176             :       fprintf(f, "intra_mode in Intra Frames:\n");
    2177             :       fprintf(f, "Y: %8d, %8d, %8d, %8d, %8d\n", y_modes[0], y_modes[1],
    2178             :               y_modes[2], y_modes[3], y_modes[4]);
    2179             :       fprintf(f, "UV:%8d, %8d, %8d, %8d\n", uv_modes[0], uv_modes[1],
    2180             :               uv_modes[2], uv_modes[3]);
    2181             :       fprintf(f, "B: ");
    2182             :       {
    2183             :         int i;
    2184             : 
    2185             :         for (i = 0; i < 10; ++i) fprintf(f, "%8d, ", b_modes[i]);
    2186             : 
    2187             :         fprintf(f, "\n");
    2188             :       }
    2189             : 
    2190             :       fprintf(f, "Modes in Inter Frames:\n");
    2191             :       fprintf(f, "Y: %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d\n",
    2192             :               inter_y_modes[0], inter_y_modes[1], inter_y_modes[2],
    2193             :               inter_y_modes[3], inter_y_modes[4], inter_y_modes[5],
    2194             :               inter_y_modes[6], inter_y_modes[7], inter_y_modes[8],
    2195             :               inter_y_modes[9]);
    2196             :       fprintf(f, "UV:%8d, %8d, %8d, %8d\n", inter_uv_modes[0],
    2197             :               inter_uv_modes[1], inter_uv_modes[2], inter_uv_modes[3]);
    2198             :       fprintf(f, "B: ");
    2199             :       {
    2200             :         int i;
    2201             : 
    2202             :         for (i = 0; i < 15; ++i) fprintf(f, "%8d, ", inter_b_modes[i]);
    2203             : 
    2204             :         fprintf(f, "\n");
    2205             :       }
    2206             :       fprintf(f, "P:%8d, %8d, %8d, %8d\n", count_mb_seg[0], count_mb_seg[1],
    2207             :               count_mb_seg[2], count_mb_seg[3]);
    2208             :       fprintf(f, "PB:%8d, %8d, %8d, %8d\n", inter_b_modes[LEFT4X4],
    2209             :               inter_b_modes[ABOVE4X4], inter_b_modes[ZERO4X4],
    2210             :               inter_b_modes[NEW4X4]);
    2211             : 
    2212             :       fclose(f);
    2213             :     }
    2214             : #endif
    2215             : 
    2216             : #ifdef VP8_ENTROPY_STATS
    2217             :     {
    2218             :       int i, j, k;
    2219             :       FILE *fmode = fopen("modecontext.c", "w");
    2220             : 
    2221             :       fprintf(fmode, "\n#include \"entropymode.h\"\n\n");
    2222             :       fprintf(fmode, "const unsigned int vp8_kf_default_bmode_counts ");
    2223             :       fprintf(fmode,
    2224             :               "[VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES] =\n{\n");
    2225             : 
    2226             :       for (i = 0; i < 10; ++i) {
    2227             :         fprintf(fmode, "    { /* Above Mode :  %d */\n", i);
    2228             : 
    2229             :         for (j = 0; j < 10; ++j) {
    2230             :           fprintf(fmode, "        {");
    2231             : 
    2232             :           for (k = 0; k < 10; ++k) {
    2233             :             if (!intra_mode_stats[i][j][k])
    2234             :               fprintf(fmode, " %5d, ", 1);
    2235             :             else
    2236             :               fprintf(fmode, " %5d, ", intra_mode_stats[i][j][k]);
    2237             :           }
    2238             : 
    2239             :           fprintf(fmode, "}, /* left_mode %d */\n", j);
    2240             :         }
    2241             : 
    2242             :         fprintf(fmode, "    },\n");
    2243             :       }
    2244             : 
    2245             :       fprintf(fmode, "};\n");
    2246             :       fclose(fmode);
    2247             :     }
    2248             : #endif
    2249             : 
    2250             : #if defined(SECTIONBITS_OUTPUT)
    2251             : 
    2252             :     if (0) {
    2253             :       int i;
    2254             :       FILE *f = fopen("tokenbits.stt", "a");
    2255             : 
    2256             :       for (i = 0; i < 28; ++i) fprintf(f, "%8d", (int)(Sectionbits[i] / 256));
    2257             : 
    2258             :       fprintf(f, "\n");
    2259             :       fclose(f);
    2260             :     }
    2261             : 
    2262             : #endif
    2263             : 
    2264             : #if 0
    2265             :         {
    2266             :             printf("\n_pick_loop_filter_level:%d\n", cpi->time_pick_lpf / 1000);
    2267             :             printf("\n_frames recive_data encod_mb_row compress_frame  Total\n");
    2268             :             printf("%6d %10ld %10ld %10ld %10ld\n", cpi->common.current_video_frame, cpi->time_receive_data / 1000, cpi->time_encode_mb_row / 1000, cpi->time_compress_data / 1000, (cpi->time_receive_data + cpi->time_compress_data) / 1000);
    2269             :         }
    2270             : #endif
    2271             :   }
    2272             : 
    2273             : #if CONFIG_MULTITHREAD
    2274           0 :   vp8cx_remove_encoder_threads(cpi);
    2275             : #endif
    2276             : 
    2277             : #if CONFIG_TEMPORAL_DENOISING
    2278           0 :   vp8_denoiser_free(&cpi->denoiser);
    2279             : #endif
    2280           0 :   dealloc_compressor_data(cpi);
    2281           0 :   vpx_free(cpi->mb.ss);
    2282           0 :   vpx_free(cpi->tok);
    2283           0 :   vpx_free(cpi->cyclic_refresh_map);
    2284           0 :   vpx_free(cpi->consec_zero_last);
    2285           0 :   vpx_free(cpi->consec_zero_last_mvbias);
    2286             : 
    2287           0 :   vp8_remove_common(&cpi->common);
    2288           0 :   vpx_free(cpi);
    2289           0 :   *ptr = 0;
    2290             : 
    2291             : #ifdef OUTPUT_YUV_SRC
    2292             :   fclose(yuv_file);
    2293             : #endif
    2294             : #ifdef OUTPUT_YUV_DENOISED
    2295             :   fclose(yuv_denoised_file);
    2296             : #endif
    2297             : 
    2298             : #if 0
    2299             : 
    2300             :     if (keyfile)
    2301             :         fclose(keyfile);
    2302             : 
    2303             :     if (framepsnr)
    2304             :         fclose(framepsnr);
    2305             : 
    2306             :     if (kf_list)
    2307             :         fclose(kf_list);
    2308             : 
    2309             : #endif
    2310             : }
    2311             : 
    2312           0 : static uint64_t calc_plane_error(unsigned char *orig, int orig_stride,
    2313             :                                  unsigned char *recon, int recon_stride,
    2314             :                                  unsigned int cols, unsigned int rows) {
    2315             :   unsigned int row, col;
    2316           0 :   uint64_t total_sse = 0;
    2317             :   int diff;
    2318             : 
    2319           0 :   for (row = 0; row + 16 <= rows; row += 16) {
    2320           0 :     for (col = 0; col + 16 <= cols; col += 16) {
    2321             :       unsigned int sse;
    2322             : 
    2323           0 :       vpx_mse16x16(orig + col, orig_stride, recon + col, recon_stride, &sse);
    2324           0 :       total_sse += sse;
    2325             :     }
    2326             : 
    2327             :     /* Handle odd-sized width */
    2328           0 :     if (col < cols) {
    2329             :       unsigned int border_row, border_col;
    2330           0 :       unsigned char *border_orig = orig;
    2331           0 :       unsigned char *border_recon = recon;
    2332             : 
    2333           0 :       for (border_row = 0; border_row < 16; ++border_row) {
    2334           0 :         for (border_col = col; border_col < cols; ++border_col) {
    2335           0 :           diff = border_orig[border_col] - border_recon[border_col];
    2336           0 :           total_sse += diff * diff;
    2337             :         }
    2338             : 
    2339           0 :         border_orig += orig_stride;
    2340           0 :         border_recon += recon_stride;
    2341             :       }
    2342             :     }
    2343             : 
    2344           0 :     orig += orig_stride * 16;
    2345           0 :     recon += recon_stride * 16;
    2346             :   }
    2347             : 
    2348             :   /* Handle odd-sized height */
    2349           0 :   for (; row < rows; ++row) {
    2350           0 :     for (col = 0; col < cols; ++col) {
    2351           0 :       diff = orig[col] - recon[col];
    2352           0 :       total_sse += diff * diff;
    2353             :     }
    2354             : 
    2355           0 :     orig += orig_stride;
    2356           0 :     recon += recon_stride;
    2357             :   }
    2358             : 
    2359           0 :   vpx_clear_system_state();
    2360           0 :   return total_sse;
    2361             : }
    2362             : 
    2363           0 : static void generate_psnr_packet(VP8_COMP *cpi) {
    2364           0 :   YV12_BUFFER_CONFIG *orig = cpi->Source;
    2365           0 :   YV12_BUFFER_CONFIG *recon = cpi->common.frame_to_show;
    2366             :   struct vpx_codec_cx_pkt pkt;
    2367             :   uint64_t sse;
    2368             :   int i;
    2369           0 :   unsigned int width = cpi->common.Width;
    2370           0 :   unsigned int height = cpi->common.Height;
    2371             : 
    2372           0 :   pkt.kind = VPX_CODEC_PSNR_PKT;
    2373           0 :   sse = calc_plane_error(orig->y_buffer, orig->y_stride, recon->y_buffer,
    2374             :                          recon->y_stride, width, height);
    2375           0 :   pkt.data.psnr.sse[0] = sse;
    2376           0 :   pkt.data.psnr.sse[1] = sse;
    2377           0 :   pkt.data.psnr.samples[0] = width * height;
    2378           0 :   pkt.data.psnr.samples[1] = width * height;
    2379             : 
    2380           0 :   width = (width + 1) / 2;
    2381           0 :   height = (height + 1) / 2;
    2382             : 
    2383           0 :   sse = calc_plane_error(orig->u_buffer, orig->uv_stride, recon->u_buffer,
    2384             :                          recon->uv_stride, width, height);
    2385           0 :   pkt.data.psnr.sse[0] += sse;
    2386           0 :   pkt.data.psnr.sse[2] = sse;
    2387           0 :   pkt.data.psnr.samples[0] += width * height;
    2388           0 :   pkt.data.psnr.samples[2] = width * height;
    2389             : 
    2390           0 :   sse = calc_plane_error(orig->v_buffer, orig->uv_stride, recon->v_buffer,
    2391             :                          recon->uv_stride, width, height);
    2392           0 :   pkt.data.psnr.sse[0] += sse;
    2393           0 :   pkt.data.psnr.sse[3] = sse;
    2394           0 :   pkt.data.psnr.samples[0] += width * height;
    2395           0 :   pkt.data.psnr.samples[3] = width * height;
    2396             : 
    2397           0 :   for (i = 0; i < 4; ++i) {
    2398           0 :     pkt.data.psnr.psnr[i] = vpx_sse_to_psnr(pkt.data.psnr.samples[i], 255.0,
    2399           0 :                                             (double)(pkt.data.psnr.sse[i]));
    2400             :   }
    2401             : 
    2402           0 :   vpx_codec_pkt_list_add(cpi->output_pkt_list, &pkt);
    2403           0 : }
    2404             : 
    2405           0 : int vp8_use_as_reference(VP8_COMP *cpi, int ref_frame_flags) {
    2406           0 :   if (ref_frame_flags > 7) return -1;
    2407             : 
    2408           0 :   cpi->ref_frame_flags = ref_frame_flags;
    2409           0 :   return 0;
    2410             : }
    2411           0 : int vp8_update_reference(VP8_COMP *cpi, int ref_frame_flags) {
    2412           0 :   if (ref_frame_flags > 7) return -1;
    2413             : 
    2414           0 :   cpi->common.refresh_golden_frame = 0;
    2415           0 :   cpi->common.refresh_alt_ref_frame = 0;
    2416           0 :   cpi->common.refresh_last_frame = 0;
    2417             : 
    2418           0 :   if (ref_frame_flags & VP8_LAST_FRAME) cpi->common.refresh_last_frame = 1;
    2419             : 
    2420           0 :   if (ref_frame_flags & VP8_GOLD_FRAME) cpi->common.refresh_golden_frame = 1;
    2421             : 
    2422           0 :   if (ref_frame_flags & VP8_ALTR_FRAME) cpi->common.refresh_alt_ref_frame = 1;
    2423             : 
    2424           0 :   return 0;
    2425             : }
    2426             : 
    2427           0 : int vp8_get_reference(VP8_COMP *cpi, enum vpx_ref_frame_type ref_frame_flag,
    2428             :                       YV12_BUFFER_CONFIG *sd) {
    2429           0 :   VP8_COMMON *cm = &cpi->common;
    2430             :   int ref_fb_idx;
    2431             : 
    2432           0 :   if (ref_frame_flag == VP8_LAST_FRAME) {
    2433           0 :     ref_fb_idx = cm->lst_fb_idx;
    2434           0 :   } else if (ref_frame_flag == VP8_GOLD_FRAME) {
    2435           0 :     ref_fb_idx = cm->gld_fb_idx;
    2436           0 :   } else if (ref_frame_flag == VP8_ALTR_FRAME) {
    2437           0 :     ref_fb_idx = cm->alt_fb_idx;
    2438             :   } else {
    2439           0 :     return -1;
    2440             :   }
    2441             : 
    2442           0 :   vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
    2443             : 
    2444           0 :   return 0;
    2445             : }
    2446           0 : int vp8_set_reference(VP8_COMP *cpi, enum vpx_ref_frame_type ref_frame_flag,
    2447             :                       YV12_BUFFER_CONFIG *sd) {
    2448           0 :   VP8_COMMON *cm = &cpi->common;
    2449             : 
    2450             :   int ref_fb_idx;
    2451             : 
    2452           0 :   if (ref_frame_flag == VP8_LAST_FRAME) {
    2453           0 :     ref_fb_idx = cm->lst_fb_idx;
    2454           0 :   } else if (ref_frame_flag == VP8_GOLD_FRAME) {
    2455           0 :     ref_fb_idx = cm->gld_fb_idx;
    2456           0 :   } else if (ref_frame_flag == VP8_ALTR_FRAME) {
    2457           0 :     ref_fb_idx = cm->alt_fb_idx;
    2458             :   } else {
    2459           0 :     return -1;
    2460             :   }
    2461             : 
    2462           0 :   vp8_yv12_copy_frame(sd, &cm->yv12_fb[ref_fb_idx]);
    2463             : 
    2464           0 :   return 0;
    2465             : }
    2466           0 : int vp8_update_entropy(VP8_COMP *cpi, int update) {
    2467           0 :   VP8_COMMON *cm = &cpi->common;
    2468           0 :   cm->refresh_entropy_probs = update;
    2469             : 
    2470           0 :   return 0;
    2471             : }
    2472             : 
    2473             : #if defined(OUTPUT_YUV_SRC) || defined(OUTPUT_YUV_DENOISED)
    2474             : void vp8_write_yuv_frame(FILE *yuv_file, YV12_BUFFER_CONFIG *s) {
    2475             :   unsigned char *src = s->y_buffer;
    2476             :   int h = s->y_height;
    2477             : 
    2478             :   do {
    2479             :     fwrite(src, s->y_width, 1, yuv_file);
    2480             :     src += s->y_stride;
    2481             :   } while (--h);
    2482             : 
    2483             :   src = s->u_buffer;
    2484             :   h = s->uv_height;
    2485             : 
    2486             :   do {
    2487             :     fwrite(src, s->uv_width, 1, yuv_file);
    2488             :     src += s->uv_stride;
    2489             :   } while (--h);
    2490             : 
    2491             :   src = s->v_buffer;
    2492             :   h = s->uv_height;
    2493             : 
    2494             :   do {
    2495             :     fwrite(src, s->uv_width, 1, yuv_file);
    2496             :     src += s->uv_stride;
    2497             :   } while (--h);
    2498             : }
    2499             : #endif
    2500             : 
    2501           0 : static void scale_and_extend_source(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi) {
    2502           0 :   VP8_COMMON *cm = &cpi->common;
    2503             : 
    2504             :   /* are we resizing the image */
    2505           0 :   if (cm->horiz_scale != 0 || cm->vert_scale != 0) {
    2506             : #if CONFIG_SPATIAL_RESAMPLING
    2507           0 :     int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
    2508           0 :     int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
    2509             :     int tmp_height;
    2510             : 
    2511           0 :     if (cm->vert_scale == 3) {
    2512           0 :       tmp_height = 9;
    2513             :     } else {
    2514           0 :       tmp_height = 11;
    2515             :     }
    2516             : 
    2517           0 :     Scale2Ratio(cm->horiz_scale, &hr, &hs);
    2518           0 :     Scale2Ratio(cm->vert_scale, &vr, &vs);
    2519             : 
    2520           0 :     vpx_scale_frame(sd, &cpi->scaled_source, cm->temp_scale_frame.y_buffer,
    2521             :                     tmp_height, hs, hr, vs, vr, 0);
    2522             : 
    2523           0 :     vp8_yv12_extend_frame_borders(&cpi->scaled_source);
    2524           0 :     cpi->Source = &cpi->scaled_source;
    2525             : #endif
    2526             :   } else {
    2527           0 :     cpi->Source = sd;
    2528             :   }
    2529           0 : }
    2530             : 
    2531           0 : static int resize_key_frame(VP8_COMP *cpi) {
    2532             : #if CONFIG_SPATIAL_RESAMPLING
    2533           0 :   VP8_COMMON *cm = &cpi->common;
    2534             : 
    2535             :   /* Do we need to apply resampling for one pass cbr.
    2536             :    * In one pass this is more limited than in two pass cbr.
    2537             :    * The test and any change is only made once per key frame sequence.
    2538             :    */
    2539           0 :   if (cpi->oxcf.allow_spatial_resampling &&
    2540           0 :       (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)) {
    2541           0 :     int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
    2542           0 :     int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
    2543             :     int new_width, new_height;
    2544             : 
    2545             :     /* If we are below the resample DOWN watermark then scale down a
    2546             :      * notch.
    2547             :      */
    2548           0 :     if (cpi->buffer_level < (cpi->oxcf.resample_down_water_mark *
    2549           0 :                              cpi->oxcf.optimal_buffer_level / 100)) {
    2550           0 :       cm->horiz_scale =
    2551           0 :           (cm->horiz_scale < ONETWO) ? cm->horiz_scale + 1 : ONETWO;
    2552           0 :       cm->vert_scale = (cm->vert_scale < ONETWO) ? cm->vert_scale + 1 : ONETWO;
    2553             :     }
    2554             :     /* Should we now start scaling back up */
    2555           0 :     else if (cpi->buffer_level > (cpi->oxcf.resample_up_water_mark *
    2556           0 :                                   cpi->oxcf.optimal_buffer_level / 100)) {
    2557           0 :       cm->horiz_scale =
    2558           0 :           (cm->horiz_scale > NORMAL) ? cm->horiz_scale - 1 : NORMAL;
    2559           0 :       cm->vert_scale = (cm->vert_scale > NORMAL) ? cm->vert_scale - 1 : NORMAL;
    2560             :     }
    2561             : 
    2562             :     /* Get the new height and width */
    2563           0 :     Scale2Ratio(cm->horiz_scale, &hr, &hs);
    2564           0 :     Scale2Ratio(cm->vert_scale, &vr, &vs);
    2565           0 :     new_width = ((hs - 1) + (cpi->oxcf.Width * hr)) / hs;
    2566           0 :     new_height = ((vs - 1) + (cpi->oxcf.Height * vr)) / vs;
    2567             : 
    2568             :     /* If the image size has changed we need to reallocate the buffers
    2569             :      * and resample the source image
    2570             :      */
    2571           0 :     if ((cm->Width != new_width) || (cm->Height != new_height)) {
    2572           0 :       cm->Width = new_width;
    2573           0 :       cm->Height = new_height;
    2574           0 :       vp8_alloc_compressor_data(cpi);
    2575           0 :       scale_and_extend_source(cpi->un_scaled_source, cpi);
    2576           0 :       return 1;
    2577             :     }
    2578             :   }
    2579             : 
    2580             : #endif
    2581           0 :   return 0;
    2582             : }
    2583             : 
    2584           0 : static void update_alt_ref_frame_stats(VP8_COMP *cpi) {
    2585           0 :   VP8_COMMON *cm = &cpi->common;
    2586             : 
    2587             :   /* Select an interval before next GF or altref */
    2588           0 :   if (!cpi->auto_gold) cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
    2589             : 
    2590           0 :   if ((cpi->pass != 2) && cpi->frames_till_gf_update_due) {
    2591           0 :     cpi->current_gf_interval = cpi->frames_till_gf_update_due;
    2592             : 
    2593             :     /* Set the bits per frame that we should try and recover in
    2594             :      * subsequent inter frames to account for the extra GF spend...
    2595             :      * note that his does not apply for GF updates that occur
    2596             :      * coincident with a key frame as the extra cost of key frames is
    2597             :      * dealt with elsewhere.
    2598             :      */
    2599           0 :     cpi->gf_overspend_bits += cpi->projected_frame_size;
    2600           0 :     cpi->non_gf_bitrate_adjustment =
    2601           0 :         cpi->gf_overspend_bits / cpi->frames_till_gf_update_due;
    2602             :   }
    2603             : 
    2604             :   /* Update data structure that monitors level of reference to last GF */
    2605           0 :   memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
    2606           0 :   cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
    2607             : 
    2608             :   /* this frame refreshes means next frames don't unless specified by user */
    2609           0 :   cpi->frames_since_golden = 0;
    2610             : 
    2611             :   /* Clear the alternate reference update pending flag. */
    2612           0 :   cpi->source_alt_ref_pending = 0;
    2613             : 
    2614             :   /* Set the alternate reference frame active flag */
    2615           0 :   cpi->source_alt_ref_active = 1;
    2616           0 : }
    2617           0 : static void update_golden_frame_stats(VP8_COMP *cpi) {
    2618           0 :   VP8_COMMON *cm = &cpi->common;
    2619             : 
    2620             :   /* Update the Golden frame usage counts. */
    2621           0 :   if (cm->refresh_golden_frame) {
    2622             :     /* Select an interval before next GF */
    2623           0 :     if (!cpi->auto_gold) cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
    2624             : 
    2625           0 :     if ((cpi->pass != 2) && (cpi->frames_till_gf_update_due > 0)) {
    2626           0 :       cpi->current_gf_interval = cpi->frames_till_gf_update_due;
    2627             : 
    2628             :       /* Set the bits per frame that we should try and recover in
    2629             :        * subsequent inter frames to account for the extra GF spend...
    2630             :        * note that his does not apply for GF updates that occur
    2631             :        * coincident with a key frame as the extra cost of key frames
    2632             :        * is dealt with elsewhere.
    2633             :        */
    2634           0 :       if ((cm->frame_type != KEY_FRAME) && !cpi->source_alt_ref_active) {
    2635             :         /* Calcluate GF bits to be recovered
    2636             :          * Projected size - av frame bits available for inter
    2637             :          * frames for clip as a whole
    2638             :          */
    2639           0 :         cpi->gf_overspend_bits +=
    2640           0 :             (cpi->projected_frame_size - cpi->inter_frame_target);
    2641             :       }
    2642             : 
    2643           0 :       cpi->non_gf_bitrate_adjustment =
    2644           0 :           cpi->gf_overspend_bits / cpi->frames_till_gf_update_due;
    2645             :     }
    2646             : 
    2647             :     /* Update data structure that monitors level of reference to last GF */
    2648           0 :     memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
    2649           0 :     cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
    2650             : 
    2651             :     /* this frame refreshes means next frames don't unless specified by
    2652             :      * user
    2653             :      */
    2654           0 :     cm->refresh_golden_frame = 0;
    2655           0 :     cpi->frames_since_golden = 0;
    2656             : 
    2657           0 :     cpi->recent_ref_frame_usage[INTRA_FRAME] = 1;
    2658           0 :     cpi->recent_ref_frame_usage[LAST_FRAME] = 1;
    2659           0 :     cpi->recent_ref_frame_usage[GOLDEN_FRAME] = 1;
    2660           0 :     cpi->recent_ref_frame_usage[ALTREF_FRAME] = 1;
    2661             : 
    2662             :     /* ******** Fixed Q test code only ************ */
    2663             :     /* If we are going to use the ALT reference for the next group of
    2664             :      * frames set a flag to say so.
    2665             :      */
    2666           0 :     if (cpi->oxcf.fixed_q >= 0 && cpi->oxcf.play_alternate &&
    2667           0 :         !cpi->common.refresh_alt_ref_frame) {
    2668           0 :       cpi->source_alt_ref_pending = 1;
    2669           0 :       cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
    2670             :     }
    2671             : 
    2672           0 :     if (!cpi->source_alt_ref_pending) cpi->source_alt_ref_active = 0;
    2673             : 
    2674             :     /* Decrement count down till next gf */
    2675           0 :     if (cpi->frames_till_gf_update_due > 0) cpi->frames_till_gf_update_due--;
    2676             : 
    2677           0 :   } else if (!cpi->common.refresh_alt_ref_frame) {
    2678             :     /* Decrement count down till next gf */
    2679           0 :     if (cpi->frames_till_gf_update_due > 0) cpi->frames_till_gf_update_due--;
    2680             : 
    2681           0 :     if (cpi->frames_till_alt_ref_frame) cpi->frames_till_alt_ref_frame--;
    2682             : 
    2683           0 :     cpi->frames_since_golden++;
    2684             : 
    2685           0 :     if (cpi->frames_since_golden > 1) {
    2686           0 :       cpi->recent_ref_frame_usage[INTRA_FRAME] +=
    2687           0 :           cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME];
    2688           0 :       cpi->recent_ref_frame_usage[LAST_FRAME] +=
    2689           0 :           cpi->mb.count_mb_ref_frame_usage[LAST_FRAME];
    2690           0 :       cpi->recent_ref_frame_usage[GOLDEN_FRAME] +=
    2691           0 :           cpi->mb.count_mb_ref_frame_usage[GOLDEN_FRAME];
    2692           0 :       cpi->recent_ref_frame_usage[ALTREF_FRAME] +=
    2693           0 :           cpi->mb.count_mb_ref_frame_usage[ALTREF_FRAME];
    2694             :     }
    2695             :   }
    2696           0 : }
    2697             : 
    2698             : /* This function updates the reference frame probability estimates that
    2699             :  * will be used during mode selection
    2700             :  */
    2701           0 : static void update_rd_ref_frame_probs(VP8_COMP *cpi) {
    2702           0 :   VP8_COMMON *cm = &cpi->common;
    2703             : 
    2704           0 :   const int *const rfct = cpi->mb.count_mb_ref_frame_usage;
    2705           0 :   const int rf_intra = rfct[INTRA_FRAME];
    2706           0 :   const int rf_inter =
    2707           0 :       rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME];
    2708             : 
    2709           0 :   if (cm->frame_type == KEY_FRAME) {
    2710           0 :     cpi->prob_intra_coded = 255;
    2711           0 :     cpi->prob_last_coded = 128;
    2712           0 :     cpi->prob_gf_coded = 128;
    2713           0 :   } else if (!(rf_intra + rf_inter)) {
    2714           0 :     cpi->prob_intra_coded = 63;
    2715           0 :     cpi->prob_last_coded = 128;
    2716           0 :     cpi->prob_gf_coded = 128;
    2717             :   }
    2718             : 
    2719             :   /* update reference frame costs since we can do better than what we got
    2720             :    * last frame.
    2721             :    */
    2722           0 :   if (cpi->oxcf.number_of_layers == 1) {
    2723           0 :     if (cpi->common.refresh_alt_ref_frame) {
    2724           0 :       cpi->prob_intra_coded += 40;
    2725           0 :       if (cpi->prob_intra_coded > 255) cpi->prob_intra_coded = 255;
    2726           0 :       cpi->prob_last_coded = 200;
    2727           0 :       cpi->prob_gf_coded = 1;
    2728           0 :     } else if (cpi->frames_since_golden == 0) {
    2729           0 :       cpi->prob_last_coded = 214;
    2730           0 :     } else if (cpi->frames_since_golden == 1) {
    2731           0 :       cpi->prob_last_coded = 192;
    2732           0 :       cpi->prob_gf_coded = 220;
    2733           0 :     } else if (cpi->source_alt_ref_active) {
    2734           0 :       cpi->prob_gf_coded -= 20;
    2735             : 
    2736           0 :       if (cpi->prob_gf_coded < 10) cpi->prob_gf_coded = 10;
    2737             :     }
    2738           0 :     if (!cpi->source_alt_ref_active) cpi->prob_gf_coded = 255;
    2739             :   }
    2740           0 : }
    2741             : 
    2742             : #if !CONFIG_REALTIME_ONLY
    2743             : /* 1 = key, 0 = inter */
    2744           0 : static int decide_key_frame(VP8_COMP *cpi) {
    2745           0 :   VP8_COMMON *cm = &cpi->common;
    2746             : 
    2747           0 :   int code_key_frame = 0;
    2748             : 
    2749           0 :   cpi->kf_boost = 0;
    2750             : 
    2751           0 :   if (cpi->Speed > 11) return 0;
    2752             : 
    2753             :   /* Clear down mmx registers */
    2754           0 :   vpx_clear_system_state();
    2755             : 
    2756           0 :   if ((cpi->compressor_speed == 2) && (cpi->Speed >= 5) && (cpi->sf.RD == 0)) {
    2757           0 :     double change = 1.0 *
    2758           0 :                     abs((int)(cpi->mb.intra_error - cpi->last_intra_error)) /
    2759           0 :                     (1 + cpi->last_intra_error);
    2760           0 :     double change2 =
    2761           0 :         1.0 *
    2762           0 :         abs((int)(cpi->mb.prediction_error - cpi->last_prediction_error)) /
    2763           0 :         (1 + cpi->last_prediction_error);
    2764           0 :     double minerror = cm->MBs * 256;
    2765             : 
    2766           0 :     cpi->last_intra_error = cpi->mb.intra_error;
    2767           0 :     cpi->last_prediction_error = cpi->mb.prediction_error;
    2768             : 
    2769           0 :     if (10 * cpi->mb.intra_error / (1 + cpi->mb.prediction_error) < 15 &&
    2770           0 :         cpi->mb.prediction_error > minerror &&
    2771           0 :         (change > .25 || change2 > .25)) {
    2772             :       /*(change > 1.4 || change < .75)&& cpi->this_frame_percent_intra >
    2773             :        * cpi->last_frame_percent_intra + 3*/
    2774           0 :       return 1;
    2775             :     }
    2776             : 
    2777           0 :     return 0;
    2778             :   }
    2779             : 
    2780             :   /* If the following are true we might as well code a key frame */
    2781           0 :   if (((cpi->this_frame_percent_intra == 100) &&
    2782           0 :        (cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra + 2))) ||
    2783           0 :       ((cpi->this_frame_percent_intra > 95) &&
    2784           0 :        (cpi->this_frame_percent_intra >=
    2785           0 :         (cpi->last_frame_percent_intra + 5)))) {
    2786           0 :     code_key_frame = 1;
    2787             :   }
    2788             :   /* in addition if the following are true and this is not a golden frame
    2789             :    * then code a key frame Note that on golden frames there often seems
    2790             :    * to be a pop in intra useage anyway hence this restriction is
    2791             :    * designed to prevent spurious key frames. The Intra pop needs to be
    2792             :    * investigated.
    2793             :    */
    2794           0 :   else if (((cpi->this_frame_percent_intra > 60) &&
    2795           0 :             (cpi->this_frame_percent_intra >
    2796           0 :              (cpi->last_frame_percent_intra * 2))) ||
    2797           0 :            ((cpi->this_frame_percent_intra > 75) &&
    2798           0 :             (cpi->this_frame_percent_intra >
    2799           0 :              (cpi->last_frame_percent_intra * 3 / 2))) ||
    2800           0 :            ((cpi->this_frame_percent_intra > 90) &&
    2801           0 :             (cpi->this_frame_percent_intra >
    2802           0 :              (cpi->last_frame_percent_intra + 10)))) {
    2803           0 :     if (!cm->refresh_golden_frame) code_key_frame = 1;
    2804             :   }
    2805             : 
    2806           0 :   return code_key_frame;
    2807             : }
    2808             : 
    2809           0 : static void Pass1Encode(VP8_COMP *cpi, size_t *size, unsigned char *dest,
    2810             :                         unsigned int *frame_flags) {
    2811             :   (void)size;
    2812             :   (void)dest;
    2813             :   (void)frame_flags;
    2814           0 :   vp8_set_quantizer(cpi, 26);
    2815             : 
    2816           0 :   vp8_first_pass(cpi);
    2817           0 : }
    2818             : #endif
    2819             : 
    2820             : #if 0
    2821             : void write_cx_frame_to_file(YV12_BUFFER_CONFIG *frame, int this_frame)
    2822             : {
    2823             : 
    2824             :     /* write the frame */
    2825             :     FILE *yframe;
    2826             :     int i;
    2827             :     char filename[255];
    2828             : 
    2829             :     sprintf(filename, "cx\\y%04d.raw", this_frame);
    2830             :     yframe = fopen(filename, "wb");
    2831             : 
    2832             :     for (i = 0; i < frame->y_height; ++i)
    2833             :         fwrite(frame->y_buffer + i * frame->y_stride, frame->y_width, 1, yframe);
    2834             : 
    2835             :     fclose(yframe);
    2836             :     sprintf(filename, "cx\\u%04d.raw", this_frame);
    2837             :     yframe = fopen(filename, "wb");
    2838             : 
    2839             :     for (i = 0; i < frame->uv_height; ++i)
    2840             :         fwrite(frame->u_buffer + i * frame->uv_stride, frame->uv_width, 1, yframe);
    2841             : 
    2842             :     fclose(yframe);
    2843             :     sprintf(filename, "cx\\v%04d.raw", this_frame);
    2844             :     yframe = fopen(filename, "wb");
    2845             : 
    2846             :     for (i = 0; i < frame->uv_height; ++i)
    2847             :         fwrite(frame->v_buffer + i * frame->uv_stride, frame->uv_width, 1, yframe);
    2848             : 
    2849             :     fclose(yframe);
    2850             : }
    2851             : #endif
    2852             : /* return of 0 means drop frame */
    2853             : 
    2854             : #if !CONFIG_REALTIME_ONLY
    2855             : /* Function to test for conditions that indeicate we should loop
    2856             :  * back and recode a frame.
    2857             :  */
    2858           0 : static int recode_loop_test(VP8_COMP *cpi, int high_limit, int low_limit, int q,
    2859             :                             int maxq, int minq) {
    2860           0 :   int force_recode = 0;
    2861           0 :   VP8_COMMON *cm = &cpi->common;
    2862             : 
    2863             :   /* Is frame recode allowed at all
    2864             :    * Yes if either recode mode 1 is selected or mode two is selcted
    2865             :    * and the frame is a key frame. golden frame or alt_ref_frame
    2866             :    */
    2867           0 :   if ((cpi->sf.recode_loop == 1) ||
    2868           0 :       ((cpi->sf.recode_loop == 2) &&
    2869           0 :        ((cm->frame_type == KEY_FRAME) || cm->refresh_golden_frame ||
    2870           0 :         cm->refresh_alt_ref_frame))) {
    2871             :     /* General over and under shoot tests */
    2872           0 :     if (((cpi->projected_frame_size > high_limit) && (q < maxq)) ||
    2873           0 :         ((cpi->projected_frame_size < low_limit) && (q > minq))) {
    2874           0 :       force_recode = 1;
    2875             :     }
    2876             :     /* Special Constrained quality tests */
    2877           0 :     else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) {
    2878             :       /* Undershoot and below auto cq level */
    2879           0 :       if ((q > cpi->cq_target_quality) &&
    2880           0 :           (cpi->projected_frame_size < ((cpi->this_frame_target * 7) >> 3))) {
    2881           0 :         force_recode = 1;
    2882             :       }
    2883             :       /* Severe undershoot and between auto and user cq level */
    2884           0 :       else if ((q > cpi->oxcf.cq_level) &&
    2885           0 :                (cpi->projected_frame_size < cpi->min_frame_bandwidth) &&
    2886           0 :                (cpi->active_best_quality > cpi->oxcf.cq_level)) {
    2887           0 :         force_recode = 1;
    2888           0 :         cpi->active_best_quality = cpi->oxcf.cq_level;
    2889             :       }
    2890             :     }
    2891             :   }
    2892             : 
    2893           0 :   return force_recode;
    2894             : }
    2895             : #endif  // !CONFIG_REALTIME_ONLY
    2896             : 
    2897           0 : static void update_reference_frames(VP8_COMP *cpi) {
    2898           0 :   VP8_COMMON *cm = &cpi->common;
    2899           0 :   YV12_BUFFER_CONFIG *yv12_fb = cm->yv12_fb;
    2900             : 
    2901             :   /* At this point the new frame has been encoded.
    2902             :    * If any buffer copy / swapping is signaled it should be done here.
    2903             :    */
    2904             : 
    2905           0 :   if (cm->frame_type == KEY_FRAME) {
    2906           0 :     yv12_fb[cm->new_fb_idx].flags |= VP8_GOLD_FRAME | VP8_ALTR_FRAME;
    2907             : 
    2908           0 :     yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
    2909           0 :     yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
    2910             : 
    2911           0 :     cm->alt_fb_idx = cm->gld_fb_idx = cm->new_fb_idx;
    2912             : 
    2913           0 :     cpi->current_ref_frames[GOLDEN_FRAME] = cm->current_video_frame;
    2914           0 :     cpi->current_ref_frames[ALTREF_FRAME] = cm->current_video_frame;
    2915             :   } else /* For non key frames */
    2916             :   {
    2917           0 :     if (cm->refresh_alt_ref_frame) {
    2918           0 :       assert(!cm->copy_buffer_to_arf);
    2919             : 
    2920           0 :       cm->yv12_fb[cm->new_fb_idx].flags |= VP8_ALTR_FRAME;
    2921           0 :       cm->yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
    2922           0 :       cm->alt_fb_idx = cm->new_fb_idx;
    2923             : 
    2924           0 :       cpi->current_ref_frames[ALTREF_FRAME] = cm->current_video_frame;
    2925           0 :     } else if (cm->copy_buffer_to_arf) {
    2926           0 :       assert(!(cm->copy_buffer_to_arf & ~0x3));
    2927             : 
    2928           0 :       if (cm->copy_buffer_to_arf == 1) {
    2929           0 :         if (cm->alt_fb_idx != cm->lst_fb_idx) {
    2930           0 :           yv12_fb[cm->lst_fb_idx].flags |= VP8_ALTR_FRAME;
    2931           0 :           yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
    2932           0 :           cm->alt_fb_idx = cm->lst_fb_idx;
    2933             : 
    2934           0 :           cpi->current_ref_frames[ALTREF_FRAME] =
    2935           0 :               cpi->current_ref_frames[LAST_FRAME];
    2936             :         }
    2937             :       } else /* if (cm->copy_buffer_to_arf == 2) */
    2938             :       {
    2939           0 :         if (cm->alt_fb_idx != cm->gld_fb_idx) {
    2940           0 :           yv12_fb[cm->gld_fb_idx].flags |= VP8_ALTR_FRAME;
    2941           0 :           yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
    2942           0 :           cm->alt_fb_idx = cm->gld_fb_idx;
    2943             : 
    2944           0 :           cpi->current_ref_frames[ALTREF_FRAME] =
    2945           0 :               cpi->current_ref_frames[GOLDEN_FRAME];
    2946             :         }
    2947             :       }
    2948             :     }
    2949             : 
    2950           0 :     if (cm->refresh_golden_frame) {
    2951           0 :       assert(!cm->copy_buffer_to_gf);
    2952             : 
    2953           0 :       cm->yv12_fb[cm->new_fb_idx].flags |= VP8_GOLD_FRAME;
    2954           0 :       cm->yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
    2955           0 :       cm->gld_fb_idx = cm->new_fb_idx;
    2956             : 
    2957           0 :       cpi->current_ref_frames[GOLDEN_FRAME] = cm->current_video_frame;
    2958           0 :     } else if (cm->copy_buffer_to_gf) {
    2959           0 :       assert(!(cm->copy_buffer_to_arf & ~0x3));
    2960             : 
    2961           0 :       if (cm->copy_buffer_to_gf == 1) {
    2962           0 :         if (cm->gld_fb_idx != cm->lst_fb_idx) {
    2963           0 :           yv12_fb[cm->lst_fb_idx].flags |= VP8_GOLD_FRAME;
    2964           0 :           yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
    2965           0 :           cm->gld_fb_idx = cm->lst_fb_idx;
    2966             : 
    2967           0 :           cpi->current_ref_frames[GOLDEN_FRAME] =
    2968           0 :               cpi->current_ref_frames[LAST_FRAME];
    2969             :         }
    2970             :       } else /* if (cm->copy_buffer_to_gf == 2) */
    2971             :       {
    2972           0 :         if (cm->alt_fb_idx != cm->gld_fb_idx) {
    2973           0 :           yv12_fb[cm->alt_fb_idx].flags |= VP8_GOLD_FRAME;
    2974           0 :           yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
    2975           0 :           cm->gld_fb_idx = cm->alt_fb_idx;
    2976             : 
    2977           0 :           cpi->current_ref_frames[GOLDEN_FRAME] =
    2978           0 :               cpi->current_ref_frames[ALTREF_FRAME];
    2979             :         }
    2980             :       }
    2981             :     }
    2982             :   }
    2983             : 
    2984           0 :   if (cm->refresh_last_frame) {
    2985           0 :     cm->yv12_fb[cm->new_fb_idx].flags |= VP8_LAST_FRAME;
    2986           0 :     cm->yv12_fb[cm->lst_fb_idx].flags &= ~VP8_LAST_FRAME;
    2987           0 :     cm->lst_fb_idx = cm->new_fb_idx;
    2988             : 
    2989           0 :     cpi->current_ref_frames[LAST_FRAME] = cm->current_video_frame;
    2990             :   }
    2991             : 
    2992             : #if CONFIG_TEMPORAL_DENOISING
    2993           0 :   if (cpi->oxcf.noise_sensitivity) {
    2994             :     /* we shouldn't have to keep multiple copies as we know in advance which
    2995             :      * buffer we should start - for now to get something up and running
    2996             :      * I've chosen to copy the buffers
    2997             :      */
    2998           0 :     if (cm->frame_type == KEY_FRAME) {
    2999             :       int i;
    3000           0 :       for (i = LAST_FRAME; i < MAX_REF_FRAMES; ++i)
    3001           0 :         vp8_yv12_copy_frame(cpi->Source, &cpi->denoiser.yv12_running_avg[i]);
    3002             :     } else /* For non key frames */
    3003             :     {
    3004           0 :       vp8_yv12_extend_frame_borders(
    3005           0 :           &cpi->denoiser.yv12_running_avg[INTRA_FRAME]);
    3006             : 
    3007           0 :       if (cm->refresh_alt_ref_frame || cm->copy_buffer_to_arf) {
    3008           0 :         vp8_yv12_copy_frame(&cpi->denoiser.yv12_running_avg[INTRA_FRAME],
    3009           0 :                             &cpi->denoiser.yv12_running_avg[ALTREF_FRAME]);
    3010             :       }
    3011           0 :       if (cm->refresh_golden_frame || cm->copy_buffer_to_gf) {
    3012           0 :         vp8_yv12_copy_frame(&cpi->denoiser.yv12_running_avg[INTRA_FRAME],
    3013           0 :                             &cpi->denoiser.yv12_running_avg[GOLDEN_FRAME]);
    3014             :       }
    3015           0 :       if (cm->refresh_last_frame) {
    3016           0 :         vp8_yv12_copy_frame(&cpi->denoiser.yv12_running_avg[INTRA_FRAME],
    3017           0 :                             &cpi->denoiser.yv12_running_avg[LAST_FRAME]);
    3018             :       }
    3019             :     }
    3020           0 :     if (cpi->oxcf.noise_sensitivity == 4)
    3021           0 :       vp8_yv12_copy_frame(cpi->Source, &cpi->denoiser.yv12_last_source);
    3022             :   }
    3023             : #endif
    3024           0 : }
    3025             : 
    3026           0 : static int measure_square_diff_partial(YV12_BUFFER_CONFIG *source,
    3027             :                                        YV12_BUFFER_CONFIG *dest,
    3028             :                                        VP8_COMP *cpi) {
    3029             :   int i, j;
    3030           0 :   int Total = 0;
    3031           0 :   int num_blocks = 0;
    3032           0 :   int skip = 2;
    3033           0 :   int min_consec_zero_last = 10;
    3034           0 :   int tot_num_blocks = (source->y_height * source->y_width) >> 8;
    3035           0 :   unsigned char *src = source->y_buffer;
    3036           0 :   unsigned char *dst = dest->y_buffer;
    3037             : 
    3038             :   /* Loop through the Y plane, every |skip| blocks along rows and colmumns,
    3039             :    * summing the square differences, and only for blocks that have been
    3040             :    * zero_last mode at least |x| frames in a row.
    3041             :    */
    3042           0 :   for (i = 0; i < source->y_height; i += 16 * skip) {
    3043           0 :     int block_index_row = (i >> 4) * cpi->common.mb_cols;
    3044           0 :     for (j = 0; j < source->y_width; j += 16 * skip) {
    3045           0 :       int index = block_index_row + (j >> 4);
    3046           0 :       if (cpi->consec_zero_last[index] >= min_consec_zero_last) {
    3047             :         unsigned int sse;
    3048           0 :         Total += vpx_mse16x16(src + j, source->y_stride, dst + j,
    3049             :                               dest->y_stride, &sse);
    3050           0 :         num_blocks++;
    3051             :       }
    3052             :     }
    3053           0 :     src += 16 * skip * source->y_stride;
    3054           0 :     dst += 16 * skip * dest->y_stride;
    3055             :   }
    3056             :   // Only return non-zero if we have at least ~1/16 samples for estimate.
    3057           0 :   if (num_blocks > (tot_num_blocks >> 4)) {
    3058           0 :     return (Total / num_blocks);
    3059             :   } else {
    3060           0 :     return 0;
    3061             :   }
    3062             : }
    3063             : 
    3064             : #if CONFIG_TEMPORAL_DENOISING
    3065           0 : static void process_denoiser_mode_change(VP8_COMP *cpi) {
    3066           0 :   const VP8_COMMON *const cm = &cpi->common;
    3067             :   int i, j;
    3068           0 :   int total = 0;
    3069           0 :   int num_blocks = 0;
    3070             :   // Number of blocks skipped along row/column in computing the
    3071             :   // nmse (normalized mean square error) of source.
    3072           0 :   int skip = 2;
    3073             :   // Only select blocks for computing nmse that have been encoded
    3074             :   // as ZERO LAST min_consec_zero_last frames in a row.
    3075             :   // Scale with number of temporal layers.
    3076           0 :   int min_consec_zero_last = 12 / cpi->oxcf.number_of_layers;
    3077             :   // Decision is tested for changing the denoising mode every
    3078             :   // num_mode_change times this function is called. Note that this
    3079             :   // function called every 8 frames, so (8 * num_mode_change) is number
    3080             :   // of frames where denoising mode change is tested for switch.
    3081           0 :   int num_mode_change = 20;
    3082             :   // Framerate factor, to compensate for larger mse at lower framerates.
    3083             :   // Use ref_framerate, which is full source framerate for temporal layers.
    3084             :   // TODO(marpan): Adjust this factor.
    3085           0 :   int fac_framerate = cpi->ref_framerate < 25.0f ? 80 : 100;
    3086           0 :   int tot_num_blocks = cm->mb_rows * cm->mb_cols;
    3087           0 :   int ystride = cpi->Source->y_stride;
    3088           0 :   unsigned char *src = cpi->Source->y_buffer;
    3089           0 :   unsigned char *dst = cpi->denoiser.yv12_last_source.y_buffer;
    3090             :   static const unsigned char const_source[16] = { 128, 128, 128, 128, 128, 128,
    3091             :                                                   128, 128, 128, 128, 128, 128,
    3092             :                                                   128, 128, 128, 128 };
    3093           0 :   int bandwidth = (int)(cpi->target_bandwidth);
    3094             :   // For temporal layers, use full bandwidth (top layer).
    3095           0 :   if (cpi->oxcf.number_of_layers > 1) {
    3096           0 :     LAYER_CONTEXT *lc = &cpi->layer_context[cpi->oxcf.number_of_layers - 1];
    3097           0 :     bandwidth = (int)(lc->target_bandwidth);
    3098             :   }
    3099             :   // Loop through the Y plane, every skip blocks along rows and columns,
    3100             :   // summing the normalized mean square error, only for blocks that have
    3101             :   // been encoded as ZEROMV LAST at least min_consec_zero_last least frames in
    3102             :   // a row and have small sum difference between current and previous frame.
    3103             :   // Normalization here is by the contrast of the current frame block.
    3104           0 :   for (i = 0; i < cm->Height; i += 16 * skip) {
    3105           0 :     int block_index_row = (i >> 4) * cm->mb_cols;
    3106           0 :     for (j = 0; j < cm->Width; j += 16 * skip) {
    3107           0 :       int index = block_index_row + (j >> 4);
    3108           0 :       if (cpi->consec_zero_last[index] >= min_consec_zero_last) {
    3109             :         unsigned int sse;
    3110           0 :         const unsigned int var =
    3111           0 :             vpx_variance16x16(src + j, ystride, dst + j, ystride, &sse);
    3112             :         // Only consider this block as valid for noise measurement
    3113             :         // if the sum_diff average of the current and previous frame
    3114             :         // is small (to avoid effects from lighting change).
    3115           0 :         if ((sse - var) < 128) {
    3116             :           unsigned int sse2;
    3117           0 :           const unsigned int act =
    3118           0 :               vpx_variance16x16(src + j, ystride, const_source, 0, &sse2);
    3119           0 :           if (act > 0) total += sse / act;
    3120           0 :           num_blocks++;
    3121             :         }
    3122             :       }
    3123             :     }
    3124           0 :     src += 16 * skip * ystride;
    3125           0 :     dst += 16 * skip * ystride;
    3126             :   }
    3127           0 :   total = total * fac_framerate / 100;
    3128             : 
    3129             :   // Only consider this frame as valid sample if we have computed nmse over
    3130             :   // at least ~1/16 blocks, and Total > 0 (Total == 0 can happen if the
    3131             :   // application inputs duplicate frames, or contrast is all zero).
    3132           0 :   if (total > 0 && (num_blocks > (tot_num_blocks >> 4))) {
    3133             :     // Update the recursive mean square source_diff.
    3134           0 :     total = (total << 8) / num_blocks;
    3135           0 :     if (cpi->denoiser.nmse_source_diff_count == 0) {
    3136             :       // First sample in new interval.
    3137           0 :       cpi->denoiser.nmse_source_diff = total;
    3138           0 :       cpi->denoiser.qp_avg = cm->base_qindex;
    3139             :     } else {
    3140             :       // For subsequent samples, use average with weight ~1/4 for new sample.
    3141           0 :       cpi->denoiser.nmse_source_diff =
    3142           0 :           (int)((total + 3 * cpi->denoiser.nmse_source_diff) >> 2);
    3143           0 :       cpi->denoiser.qp_avg =
    3144           0 :           (int)((cm->base_qindex + 3 * cpi->denoiser.qp_avg) >> 2);
    3145             :     }
    3146           0 :     cpi->denoiser.nmse_source_diff_count++;
    3147             :   }
    3148             :   // Check for changing the denoiser mode, when we have obtained #samples =
    3149             :   // num_mode_change. Condition the change also on the bitrate and QP.
    3150           0 :   if (cpi->denoiser.nmse_source_diff_count == num_mode_change) {
    3151             :     // Check for going up: from normal to aggressive mode.
    3152           0 :     if ((cpi->denoiser.denoiser_mode == kDenoiserOnYUV) &&
    3153           0 :         (cpi->denoiser.nmse_source_diff >
    3154           0 :          cpi->denoiser.threshold_aggressive_mode) &&
    3155           0 :         (cpi->denoiser.qp_avg < cpi->denoiser.qp_threshold_up &&
    3156           0 :          bandwidth > cpi->denoiser.bitrate_threshold)) {
    3157           0 :       vp8_denoiser_set_parameters(&cpi->denoiser, kDenoiserOnYUVAggressive);
    3158             :     } else {
    3159             :       // Check for going down: from aggressive to normal mode.
    3160           0 :       if (((cpi->denoiser.denoiser_mode == kDenoiserOnYUVAggressive) &&
    3161           0 :            (cpi->denoiser.nmse_source_diff <
    3162           0 :             cpi->denoiser.threshold_aggressive_mode)) ||
    3163           0 :           ((cpi->denoiser.denoiser_mode == kDenoiserOnYUVAggressive) &&
    3164           0 :            (cpi->denoiser.qp_avg > cpi->denoiser.qp_threshold_down ||
    3165           0 :             bandwidth < cpi->denoiser.bitrate_threshold))) {
    3166           0 :         vp8_denoiser_set_parameters(&cpi->denoiser, kDenoiserOnYUV);
    3167             :       }
    3168             :     }
    3169             :     // Reset metric and counter for next interval.
    3170           0 :     cpi->denoiser.nmse_source_diff = 0;
    3171           0 :     cpi->denoiser.qp_avg = 0;
    3172           0 :     cpi->denoiser.nmse_source_diff_count = 0;
    3173             :   }
    3174           0 : }
    3175             : #endif
    3176             : 
    3177           0 : void vp8_loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm) {
    3178           0 :   const FRAME_TYPE frame_type = cm->frame_type;
    3179             : 
    3180           0 :   int update_any_ref_buffers = 1;
    3181           0 :   if (cpi->common.refresh_last_frame == 0 &&
    3182           0 :       cpi->common.refresh_golden_frame == 0 &&
    3183           0 :       cpi->common.refresh_alt_ref_frame == 0) {
    3184           0 :     update_any_ref_buffers = 0;
    3185             :   }
    3186             : 
    3187           0 :   if (cm->no_lpf) {
    3188           0 :     cm->filter_level = 0;
    3189             :   } else {
    3190             :     struct vpx_usec_timer timer;
    3191             : 
    3192           0 :     vpx_clear_system_state();
    3193             : 
    3194           0 :     vpx_usec_timer_start(&timer);
    3195           0 :     if (cpi->sf.auto_filter == 0) {
    3196             : #if CONFIG_TEMPORAL_DENOISING
    3197           0 :       if (cpi->oxcf.noise_sensitivity && cm->frame_type != KEY_FRAME) {
    3198             :         // Use the denoised buffer for selecting base loop filter level.
    3199             :         // Denoised signal for current frame is stored in INTRA_FRAME.
    3200             :         // No denoising on key frames.
    3201           0 :         vp8cx_pick_filter_level_fast(
    3202             :             &cpi->denoiser.yv12_running_avg[INTRA_FRAME], cpi);
    3203             :       } else {
    3204           0 :         vp8cx_pick_filter_level_fast(cpi->Source, cpi);
    3205             :       }
    3206             : #else
    3207             :       vp8cx_pick_filter_level_fast(cpi->Source, cpi);
    3208             : #endif
    3209             :     } else {
    3210             : #if CONFIG_TEMPORAL_DENOISING
    3211           0 :       if (cpi->oxcf.noise_sensitivity && cm->frame_type != KEY_FRAME) {
    3212             :         // Use the denoised buffer for selecting base loop filter level.
    3213             :         // Denoised signal for current frame is stored in INTRA_FRAME.
    3214             :         // No denoising on key frames.
    3215           0 :         vp8cx_pick_filter_level(&cpi->denoiser.yv12_running_avg[INTRA_FRAME],
    3216             :                                 cpi);
    3217             :       } else {
    3218           0 :         vp8cx_pick_filter_level(cpi->Source, cpi);
    3219             :       }
    3220             : #else
    3221             :       vp8cx_pick_filter_level(cpi->Source, cpi);
    3222             : #endif
    3223             :     }
    3224             : 
    3225           0 :     if (cm->filter_level > 0) {
    3226           0 :       vp8cx_set_alt_lf_level(cpi, cm->filter_level);
    3227             :     }
    3228             : 
    3229           0 :     vpx_usec_timer_mark(&timer);
    3230           0 :     cpi->time_pick_lpf += vpx_usec_timer_elapsed(&timer);
    3231             :   }
    3232             : 
    3233             : #if CONFIG_MULTITHREAD
    3234           0 :   if (cpi->b_multi_threaded) {
    3235           0 :     sem_post(&cpi->h_event_end_lpf); /* signal that we have set filter_level */
    3236             :   }
    3237             : #endif
    3238             : 
    3239             :   // No need to apply loop-filter if the encoded frame does not update
    3240             :   // any reference buffers.
    3241           0 :   if (cm->filter_level > 0 && update_any_ref_buffers) {
    3242           0 :     vp8_loop_filter_frame(cm, &cpi->mb.e_mbd, frame_type);
    3243             :   }
    3244             : 
    3245           0 :   vp8_yv12_extend_frame_borders(cm->frame_to_show);
    3246           0 : }
    3247             : 
    3248           0 : static void encode_frame_to_data_rate(VP8_COMP *cpi, size_t *size,
    3249             :                                       unsigned char *dest,
    3250             :                                       unsigned char *dest_end,
    3251             :                                       unsigned int *frame_flags) {
    3252             :   int Q;
    3253             :   int frame_over_shoot_limit;
    3254             :   int frame_under_shoot_limit;
    3255             : 
    3256           0 :   int Loop = 0;
    3257             :   int loop_count;
    3258             : 
    3259           0 :   VP8_COMMON *cm = &cpi->common;
    3260           0 :   int active_worst_qchanged = 0;
    3261             : 
    3262             : #if !CONFIG_REALTIME_ONLY
    3263             :   int q_low;
    3264             :   int q_high;
    3265             :   int zbin_oq_high;
    3266           0 :   int zbin_oq_low = 0;
    3267             :   int top_index;
    3268             :   int bottom_index;
    3269           0 :   int overshoot_seen = 0;
    3270           0 :   int undershoot_seen = 0;
    3271             : #endif
    3272             : 
    3273           0 :   int drop_mark = (int)(cpi->oxcf.drop_frames_water_mark *
    3274           0 :                         cpi->oxcf.optimal_buffer_level / 100);
    3275           0 :   int drop_mark75 = drop_mark * 2 / 3;
    3276           0 :   int drop_mark50 = drop_mark / 4;
    3277           0 :   int drop_mark25 = drop_mark / 8;
    3278             : 
    3279             :   /* Clear down mmx registers to allow floating point in what follows */
    3280           0 :   vpx_clear_system_state();
    3281             : 
    3282           0 :   if (cpi->force_next_frame_intra) {
    3283           0 :     cm->frame_type = KEY_FRAME; /* delayed intra frame */
    3284           0 :     cpi->force_next_frame_intra = 0;
    3285             :   }
    3286             : 
    3287             :   /* For an alt ref frame in 2 pass we skip the call to the second pass
    3288             :    * function that sets the target bandwidth
    3289             :    */
    3290           0 :   switch (cpi->pass) {
    3291             : #if !CONFIG_REALTIME_ONLY
    3292             :     case 2:
    3293           0 :       if (cpi->common.refresh_alt_ref_frame) {
    3294             :         /* Per frame bit target for the alt ref frame */
    3295           0 :         cpi->per_frame_bandwidth = cpi->twopass.gf_bits;
    3296             :         /* per second target bitrate */
    3297           0 :         cpi->target_bandwidth =
    3298           0 :             (int)(cpi->twopass.gf_bits * cpi->output_framerate);
    3299             :       }
    3300           0 :       break;
    3301             : #endif  // !CONFIG_REALTIME_ONLY
    3302             :     default:
    3303           0 :       cpi->per_frame_bandwidth =
    3304           0 :           (int)(cpi->target_bandwidth / cpi->output_framerate);
    3305           0 :       break;
    3306             :   }
    3307             : 
    3308             :   /* Default turn off buffer to buffer copying */
    3309           0 :   cm->copy_buffer_to_gf = 0;
    3310           0 :   cm->copy_buffer_to_arf = 0;
    3311             : 
    3312             :   /* Clear zbin over-quant value and mode boost values. */
    3313           0 :   cpi->mb.zbin_over_quant = 0;
    3314           0 :   cpi->mb.zbin_mode_boost = 0;
    3315             : 
    3316             :   /* Enable or disable mode based tweaking of the zbin
    3317             :    * For 2 Pass Only used where GF/ARF prediction quality
    3318             :    * is above a threshold
    3319             :    */
    3320           0 :   cpi->mb.zbin_mode_boost_enabled = 1;
    3321           0 :   if (cpi->pass == 2) {
    3322           0 :     if (cpi->gfu_boost <= 400) {
    3323           0 :       cpi->mb.zbin_mode_boost_enabled = 0;
    3324             :     }
    3325             :   }
    3326             : 
    3327             :   /* Current default encoder behaviour for the altref sign bias */
    3328           0 :   if (cpi->source_alt_ref_active) {
    3329           0 :     cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 1;
    3330             :   } else {
    3331           0 :     cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 0;
    3332             :   }
    3333             : 
    3334             :   /* Check to see if a key frame is signaled
    3335             :    * For two pass with auto key frame enabled cm->frame_type may already
    3336             :    * be set, but not for one pass.
    3337             :    */
    3338           0 :   if ((cm->current_video_frame == 0) || (cm->frame_flags & FRAMEFLAGS_KEY) ||
    3339           0 :       (cpi->oxcf.auto_key &&
    3340           0 :        (cpi->frames_since_key % cpi->key_frame_frequency == 0))) {
    3341             :     /* Key frame from VFW/auto-keyframe/first frame */
    3342           0 :     cm->frame_type = KEY_FRAME;
    3343             : #if CONFIG_TEMPORAL_DENOISING
    3344           0 :     if (cpi->oxcf.noise_sensitivity == 4) {
    3345             :       // For adaptive mode, reset denoiser to normal mode on key frame.
    3346           0 :       vp8_denoiser_set_parameters(&cpi->denoiser, kDenoiserOnYUV);
    3347             :     }
    3348             : #endif
    3349             :   }
    3350             : 
    3351             : #if CONFIG_MULTI_RES_ENCODING
    3352           0 :   if (cpi->oxcf.mr_total_resolutions > 1) {
    3353           0 :     LOWER_RES_FRAME_INFO *low_res_frame_info =
    3354             :         (LOWER_RES_FRAME_INFO *)cpi->oxcf.mr_low_res_mode_info;
    3355             : 
    3356           0 :     if (cpi->oxcf.mr_encoder_id) {
    3357             :       // TODO(marpan): This constraint shouldn't be needed, as we would like
    3358             :       // to allow for key frame setting (forced or periodic) defined per
    3359             :       // spatial layer. For now, keep this in.
    3360           0 :       cm->frame_type = low_res_frame_info->frame_type;
    3361             : 
    3362             :       // Check if lower resolution is available for motion vector reuse.
    3363           0 :       if (cm->frame_type != KEY_FRAME) {
    3364           0 :         cpi->mr_low_res_mv_avail = 1;
    3365           0 :         cpi->mr_low_res_mv_avail &= !(low_res_frame_info->is_frame_dropped);
    3366             : 
    3367           0 :         if (cpi->ref_frame_flags & VP8_LAST_FRAME)
    3368           0 :           cpi->mr_low_res_mv_avail &=
    3369           0 :               (cpi->current_ref_frames[LAST_FRAME] ==
    3370           0 :                low_res_frame_info->low_res_ref_frames[LAST_FRAME]);
    3371             : 
    3372           0 :         if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
    3373           0 :           cpi->mr_low_res_mv_avail &=
    3374           0 :               (cpi->current_ref_frames[GOLDEN_FRAME] ==
    3375           0 :                low_res_frame_info->low_res_ref_frames[GOLDEN_FRAME]);
    3376             : 
    3377             :         // Don't use altref to determine whether low res is available.
    3378             :         // TODO (marpan): Should we make this type of condition on a
    3379             :         // per-reference frame basis?
    3380             :         /*
    3381             :         if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
    3382             :             cpi->mr_low_res_mv_avail &= (cpi->current_ref_frames[ALTREF_FRAME]
    3383             :                      == low_res_frame_info->low_res_ref_frames[ALTREF_FRAME]);
    3384             :         */
    3385             :       }
    3386             :     }
    3387             : 
    3388             :     // On a key frame: For the lowest resolution, keep track of the key frame
    3389             :     // counter value. For the higher resolutions, reset the current video
    3390             :     // frame counter to that of the lowest resolution.
    3391             :     // This is done to the handle the case where we may stop/start encoding
    3392             :     // higher layer(s). The restart-encoding of higher layer is only signaled
    3393             :     // by a key frame for now.
    3394             :     // TODO (marpan): Add flag to indicate restart-encoding of higher layer.
    3395           0 :     if (cm->frame_type == KEY_FRAME) {
    3396           0 :       if (cpi->oxcf.mr_encoder_id) {
    3397             :         // If the initial starting value of the buffer level is zero (this can
    3398             :         // happen because we may have not started encoding this higher stream),
    3399             :         // then reset it to non-zero value based on |starting_buffer_level|.
    3400           0 :         if (cpi->common.current_video_frame == 0 && cpi->buffer_level == 0) {
    3401             :           unsigned int i;
    3402           0 :           cpi->bits_off_target = cpi->oxcf.starting_buffer_level;
    3403           0 :           cpi->buffer_level = cpi->oxcf.starting_buffer_level;
    3404           0 :           for (i = 0; i < cpi->oxcf.number_of_layers; ++i) {
    3405           0 :             LAYER_CONTEXT *lc = &cpi->layer_context[i];
    3406           0 :             lc->bits_off_target = lc->starting_buffer_level;
    3407           0 :             lc->buffer_level = lc->starting_buffer_level;
    3408             :           }
    3409             :         }
    3410           0 :         cpi->common.current_video_frame =
    3411           0 :             low_res_frame_info->key_frame_counter_value;
    3412             :       } else {
    3413           0 :         low_res_frame_info->key_frame_counter_value =
    3414           0 :             cpi->common.current_video_frame;
    3415             :       }
    3416             :     }
    3417             :   }
    3418             : #endif
    3419             : 
    3420             :   // Find the reference frame closest to the current frame.
    3421           0 :   cpi->closest_reference_frame = LAST_FRAME;
    3422           0 :   if (cm->frame_type != KEY_FRAME) {
    3423             :     int i;
    3424           0 :     MV_REFERENCE_FRAME closest_ref = INTRA_FRAME;
    3425           0 :     if (cpi->ref_frame_flags & VP8_LAST_FRAME) {
    3426           0 :       closest_ref = LAST_FRAME;
    3427           0 :     } else if (cpi->ref_frame_flags & VP8_GOLD_FRAME) {
    3428           0 :       closest_ref = GOLDEN_FRAME;
    3429           0 :     } else if (cpi->ref_frame_flags & VP8_ALTR_FRAME) {
    3430           0 :       closest_ref = ALTREF_FRAME;
    3431             :     }
    3432           0 :     for (i = 1; i <= 3; ++i) {
    3433           0 :       vpx_ref_frame_type_t ref_frame_type =
    3434           0 :           (vpx_ref_frame_type_t)((i == 3) ? 4 : i);
    3435           0 :       if (cpi->ref_frame_flags & ref_frame_type) {
    3436           0 :         if ((cm->current_video_frame - cpi->current_ref_frames[i]) <
    3437           0 :             (cm->current_video_frame - cpi->current_ref_frames[closest_ref])) {
    3438           0 :           closest_ref = i;
    3439             :         }
    3440             :       }
    3441             :     }
    3442           0 :     cpi->closest_reference_frame = closest_ref;
    3443             :   }
    3444             : 
    3445             :   /* Set various flags etc to special state if it is a key frame */
    3446           0 :   if (cm->frame_type == KEY_FRAME) {
    3447             :     int i;
    3448             : 
    3449             :     // Set the loop filter deltas and segmentation map update
    3450           0 :     setup_features(cpi);
    3451             : 
    3452             :     /* The alternate reference frame cannot be active for a key frame */
    3453           0 :     cpi->source_alt_ref_active = 0;
    3454             : 
    3455             :     /* Reset the RD threshold multipliers to default of * 1 (128) */
    3456           0 :     for (i = 0; i < MAX_MODES; ++i) {
    3457           0 :       cpi->mb.rd_thresh_mult[i] = 128;
    3458             :     }
    3459             : 
    3460             :     // Reset the zero_last counter to 0 on key frame.
    3461           0 :     memset(cpi->consec_zero_last, 0, cm->mb_rows * cm->mb_cols);
    3462           0 :     memset(cpi->consec_zero_last_mvbias, 0,
    3463           0 :            (cpi->common.mb_rows * cpi->common.mb_cols));
    3464             :   }
    3465             : 
    3466             : #if 0
    3467             :     /* Experimental code for lagged compress and one pass
    3468             :      * Initialise one_pass GF frames stats
    3469             :      * Update stats used for GF selection
    3470             :      */
    3471             :     {
    3472             :         cpi->one_pass_frame_index = cm->current_video_frame % MAX_LAG_BUFFERS;
    3473             : 
    3474             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frames_so_far = 0;
    3475             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_intra_error = 0.0;
    3476             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_coded_error = 0.0;
    3477             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_pcnt_inter = 0.0;
    3478             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_pcnt_motion = 0.0;
    3479             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvr = 0.0;
    3480             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvr_abs = 0.0;
    3481             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvc = 0.0;
    3482             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvc_abs = 0.0;
    3483             :     }
    3484             : #endif
    3485             : 
    3486           0 :   update_rd_ref_frame_probs(cpi);
    3487             : 
    3488           0 :   if (cpi->drop_frames_allowed) {
    3489             :     /* The reset to decimation 0 is only done here for one pass.
    3490             :      * Once it is set two pass leaves decimation on till the next kf.
    3491             :      */
    3492           0 :     if ((cpi->buffer_level > drop_mark) && (cpi->decimation_factor > 0)) {
    3493           0 :       cpi->decimation_factor--;
    3494             :     }
    3495             : 
    3496           0 :     if (cpi->buffer_level > drop_mark75 && cpi->decimation_factor > 0) {
    3497           0 :       cpi->decimation_factor = 1;
    3498             : 
    3499           0 :     } else if (cpi->buffer_level < drop_mark25 &&
    3500           0 :                (cpi->decimation_factor == 2 || cpi->decimation_factor == 3)) {
    3501           0 :       cpi->decimation_factor = 3;
    3502           0 :     } else if (cpi->buffer_level < drop_mark50 &&
    3503           0 :                (cpi->decimation_factor == 1 || cpi->decimation_factor == 2)) {
    3504           0 :       cpi->decimation_factor = 2;
    3505           0 :     } else if (cpi->buffer_level < drop_mark75 &&
    3506           0 :                (cpi->decimation_factor == 0 || cpi->decimation_factor == 1)) {
    3507           0 :       cpi->decimation_factor = 1;
    3508             :     }
    3509             :   }
    3510             : 
    3511             :   /* The following decimates the frame rate according to a regular
    3512             :    * pattern (i.e. to 1/2 or 2/3 frame rate) This can be used to help
    3513             :    * prevent buffer under-run in CBR mode. Alternatively it might be
    3514             :    * desirable in some situations to drop frame rate but throw more bits
    3515             :    * at each frame.
    3516             :    *
    3517             :    * Note that dropping a key frame can be problematic if spatial
    3518             :    * resampling is also active
    3519             :    */
    3520           0 :   if (cpi->decimation_factor > 0) {
    3521           0 :     switch (cpi->decimation_factor) {
    3522             :       case 1:
    3523           0 :         cpi->per_frame_bandwidth = cpi->per_frame_bandwidth * 3 / 2;
    3524           0 :         break;
    3525             :       case 2:
    3526           0 :         cpi->per_frame_bandwidth = cpi->per_frame_bandwidth * 5 / 4;
    3527           0 :         break;
    3528             :       case 3:
    3529           0 :         cpi->per_frame_bandwidth = cpi->per_frame_bandwidth * 5 / 4;
    3530           0 :         break;
    3531             :     }
    3532             : 
    3533             :     /* Note that we should not throw out a key frame (especially when
    3534             :      * spatial resampling is enabled).
    3535             :      */
    3536           0 :     if (cm->frame_type == KEY_FRAME) {
    3537           0 :       cpi->decimation_count = cpi->decimation_factor;
    3538           0 :     } else if (cpi->decimation_count > 0) {
    3539           0 :       cpi->decimation_count--;
    3540             : 
    3541           0 :       cpi->bits_off_target += cpi->av_per_frame_bandwidth;
    3542           0 :       if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size) {
    3543           0 :         cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
    3544             :       }
    3545             : 
    3546             : #if CONFIG_MULTI_RES_ENCODING
    3547           0 :       vp8_store_drop_frame_info(cpi);
    3548             : #endif
    3549             : 
    3550           0 :       cm->current_video_frame++;
    3551           0 :       cpi->frames_since_key++;
    3552             :       // We advance the temporal pattern for dropped frames.
    3553           0 :       cpi->temporal_pattern_counter++;
    3554             : 
    3555             : #if CONFIG_INTERNAL_STATS
    3556             :       cpi->count++;
    3557             : #endif
    3558             : 
    3559           0 :       cpi->buffer_level = cpi->bits_off_target;
    3560             : 
    3561           0 :       if (cpi->oxcf.number_of_layers > 1) {
    3562             :         unsigned int i;
    3563             : 
    3564             :         /* Propagate bits saved by dropping the frame to higher
    3565             :          * layers
    3566             :          */
    3567           0 :         for (i = cpi->current_layer + 1; i < cpi->oxcf.number_of_layers; ++i) {
    3568           0 :           LAYER_CONTEXT *lc = &cpi->layer_context[i];
    3569           0 :           lc->bits_off_target += (int)(lc->target_bandwidth / lc->framerate);
    3570           0 :           if (lc->bits_off_target > lc->maximum_buffer_size) {
    3571           0 :             lc->bits_off_target = lc->maximum_buffer_size;
    3572             :           }
    3573           0 :           lc->buffer_level = lc->bits_off_target;
    3574             :         }
    3575             :       }
    3576             : 
    3577           0 :       return;
    3578             :     } else {
    3579           0 :       cpi->decimation_count = cpi->decimation_factor;
    3580             :     }
    3581             :   } else {
    3582           0 :     cpi->decimation_count = 0;
    3583             :   }
    3584             : 
    3585             :   /* Decide how big to make the frame */
    3586           0 :   if (!vp8_pick_frame_size(cpi)) {
    3587             : /*TODO: 2 drop_frame and return code could be put together. */
    3588             : #if CONFIG_MULTI_RES_ENCODING
    3589           0 :     vp8_store_drop_frame_info(cpi);
    3590             : #endif
    3591           0 :     cm->current_video_frame++;
    3592           0 :     cpi->frames_since_key++;
    3593             :     // We advance the temporal pattern for dropped frames.
    3594           0 :     cpi->temporal_pattern_counter++;
    3595           0 :     return;
    3596             :   }
    3597             : 
    3598             :   /* Reduce active_worst_allowed_q for CBR if our buffer is getting too full.
    3599             :    * This has a knock on effect on active best quality as well.
    3600             :    * For CBR if the buffer reaches its maximum level then we can no longer
    3601             :    * save up bits for later frames so we might as well use them up
    3602             :    * on the current frame.
    3603             :    */
    3604           0 :   if ((cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
    3605           0 :       (cpi->buffer_level >= cpi->oxcf.optimal_buffer_level) &&
    3606           0 :       cpi->buffered_mode) {
    3607             :     /* Max adjustment is 1/4 */
    3608           0 :     int Adjustment = cpi->active_worst_quality / 4;
    3609             : 
    3610           0 :     if (Adjustment) {
    3611             :       int buff_lvl_step;
    3612             : 
    3613           0 :       if (cpi->buffer_level < cpi->oxcf.maximum_buffer_size) {
    3614           0 :         buff_lvl_step = (int)((cpi->oxcf.maximum_buffer_size -
    3615           0 :                                cpi->oxcf.optimal_buffer_level) /
    3616             :                               Adjustment);
    3617             : 
    3618           0 :         if (buff_lvl_step) {
    3619           0 :           Adjustment =
    3620           0 :               (int)((cpi->buffer_level - cpi->oxcf.optimal_buffer_level) /
    3621             :                     buff_lvl_step);
    3622             :         } else {
    3623           0 :           Adjustment = 0;
    3624             :         }
    3625             :       }
    3626             : 
    3627           0 :       cpi->active_worst_quality -= Adjustment;
    3628             : 
    3629           0 :       if (cpi->active_worst_quality < cpi->active_best_quality) {
    3630           0 :         cpi->active_worst_quality = cpi->active_best_quality;
    3631             :       }
    3632             :     }
    3633             :   }
    3634             : 
    3635             :   /* Set an active best quality and if necessary active worst quality
    3636             :    * There is some odd behavior for one pass here that needs attention.
    3637             :    */
    3638           0 :   if ((cpi->pass == 2) || (cpi->ni_frames > 150)) {
    3639           0 :     vpx_clear_system_state();
    3640             : 
    3641           0 :     Q = cpi->active_worst_quality;
    3642             : 
    3643           0 :     if (cm->frame_type == KEY_FRAME) {
    3644           0 :       if (cpi->pass == 2) {
    3645           0 :         if (cpi->gfu_boost > 600) {
    3646           0 :           cpi->active_best_quality = kf_low_motion_minq[Q];
    3647             :         } else {
    3648           0 :           cpi->active_best_quality = kf_high_motion_minq[Q];
    3649             :         }
    3650             : 
    3651             :         /* Special case for key frames forced because we have reached
    3652             :          * the maximum key frame interval. Here force the Q to a range
    3653             :          * based on the ambient Q to reduce the risk of popping
    3654             :          */
    3655           0 :         if (cpi->this_key_frame_forced) {
    3656           0 :           if (cpi->active_best_quality > cpi->avg_frame_qindex * 7 / 8) {
    3657           0 :             cpi->active_best_quality = cpi->avg_frame_qindex * 7 / 8;
    3658           0 :           } else if (cpi->active_best_quality<cpi->avg_frame_qindex>> 2) {
    3659           0 :             cpi->active_best_quality = cpi->avg_frame_qindex >> 2;
    3660             :           }
    3661             :         }
    3662             :       }
    3663             :       /* One pass more conservative */
    3664             :       else {
    3665           0 :         cpi->active_best_quality = kf_high_motion_minq[Q];
    3666             :       }
    3667             :     }
    3668             : 
    3669           0 :     else if (cpi->oxcf.number_of_layers == 1 &&
    3670           0 :              (cm->refresh_golden_frame || cpi->common.refresh_alt_ref_frame)) {
    3671             :       /* Use the lower of cpi->active_worst_quality and recent
    3672             :        * average Q as basis for GF/ARF Q limit unless last frame was
    3673             :        * a key frame.
    3674             :        */
    3675           0 :       if ((cpi->frames_since_key > 1) &&
    3676           0 :           (cpi->avg_frame_qindex < cpi->active_worst_quality)) {
    3677           0 :         Q = cpi->avg_frame_qindex;
    3678             :       }
    3679             : 
    3680             :       /* For constrained quality dont allow Q less than the cq level */
    3681           0 :       if ((cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
    3682           0 :           (Q < cpi->cq_target_quality)) {
    3683           0 :         Q = cpi->cq_target_quality;
    3684             :       }
    3685             : 
    3686           0 :       if (cpi->pass == 2) {
    3687           0 :         if (cpi->gfu_boost > 1000) {
    3688           0 :           cpi->active_best_quality = gf_low_motion_minq[Q];
    3689           0 :         } else if (cpi->gfu_boost < 400) {
    3690           0 :           cpi->active_best_quality = gf_high_motion_minq[Q];
    3691             :         } else {
    3692           0 :           cpi->active_best_quality = gf_mid_motion_minq[Q];
    3693             :         }
    3694             : 
    3695             :         /* Constrained quality use slightly lower active best. */
    3696           0 :         if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) {
    3697           0 :           cpi->active_best_quality = cpi->active_best_quality * 15 / 16;
    3698             :         }
    3699             :       }
    3700             :       /* One pass more conservative */
    3701             :       else {
    3702           0 :         cpi->active_best_quality = gf_high_motion_minq[Q];
    3703             :       }
    3704             :     } else {
    3705           0 :       cpi->active_best_quality = inter_minq[Q];
    3706             : 
    3707             :       /* For the constant/constrained quality mode we dont want
    3708             :        * q to fall below the cq level.
    3709             :        */
    3710           0 :       if ((cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
    3711           0 :           (cpi->active_best_quality < cpi->cq_target_quality)) {
    3712             :         /* If we are strongly undershooting the target rate in the last
    3713             :          * frames then use the user passed in cq value not the auto
    3714             :          * cq value.
    3715             :          */
    3716           0 :         if (cpi->rolling_actual_bits < cpi->min_frame_bandwidth) {
    3717           0 :           cpi->active_best_quality = cpi->oxcf.cq_level;
    3718             :         } else {
    3719           0 :           cpi->active_best_quality = cpi->cq_target_quality;
    3720             :         }
    3721             :       }
    3722             :     }
    3723             : 
    3724             :     /* If CBR and the buffer is as full then it is reasonable to allow
    3725             :      * higher quality on the frames to prevent bits just going to waste.
    3726             :      */
    3727           0 :     if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) {
    3728             :       /* Note that the use of >= here elliminates the risk of a devide
    3729             :        * by 0 error in the else if clause
    3730             :        */
    3731           0 :       if (cpi->buffer_level >= cpi->oxcf.maximum_buffer_size) {
    3732           0 :         cpi->active_best_quality = cpi->best_quality;
    3733             : 
    3734           0 :       } else if (cpi->buffer_level > cpi->oxcf.optimal_buffer_level) {
    3735           0 :         int Fraction =
    3736           0 :             (int)(((cpi->buffer_level - cpi->oxcf.optimal_buffer_level) * 128) /
    3737           0 :                   (cpi->oxcf.maximum_buffer_size -
    3738           0 :                    cpi->oxcf.optimal_buffer_level));
    3739           0 :         int min_qadjustment =
    3740           0 :             ((cpi->active_best_quality - cpi->best_quality) * Fraction) / 128;
    3741             : 
    3742           0 :         cpi->active_best_quality -= min_qadjustment;
    3743             :       }
    3744             :     }
    3745             :   }
    3746             :   /* Make sure constrained quality mode limits are adhered to for the first
    3747             :    * few frames of one pass encodes
    3748             :    */
    3749           0 :   else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) {
    3750           0 :     if ((cm->frame_type == KEY_FRAME) || cm->refresh_golden_frame ||
    3751           0 :         cpi->common.refresh_alt_ref_frame) {
    3752           0 :       cpi->active_best_quality = cpi->best_quality;
    3753           0 :     } else if (cpi->active_best_quality < cpi->cq_target_quality) {
    3754           0 :       cpi->active_best_quality = cpi->cq_target_quality;
    3755             :     }
    3756             :   }
    3757             : 
    3758             :   /* Clip the active best and worst quality values to limits */
    3759           0 :   if (cpi->active_worst_quality > cpi->worst_quality) {
    3760           0 :     cpi->active_worst_quality = cpi->worst_quality;
    3761             :   }
    3762             : 
    3763           0 :   if (cpi->active_best_quality < cpi->best_quality) {
    3764           0 :     cpi->active_best_quality = cpi->best_quality;
    3765             :   }
    3766             : 
    3767           0 :   if (cpi->active_worst_quality < cpi->active_best_quality) {
    3768           0 :     cpi->active_worst_quality = cpi->active_best_quality;
    3769             :   }
    3770             : 
    3771             :   /* Determine initial Q to try */
    3772           0 :   Q = vp8_regulate_q(cpi, cpi->this_frame_target);
    3773             : 
    3774             : #if !CONFIG_REALTIME_ONLY
    3775             : 
    3776             :   /* Set highest allowed value for Zbin over quant */
    3777           0 :   if (cm->frame_type == KEY_FRAME) {
    3778           0 :     zbin_oq_high = 0;
    3779           0 :   } else if ((cpi->oxcf.number_of_layers == 1) &&
    3780           0 :              ((cm->refresh_alt_ref_frame ||
    3781           0 :                (cm->refresh_golden_frame && !cpi->source_alt_ref_active)))) {
    3782           0 :     zbin_oq_high = 16;
    3783             :   } else {
    3784           0 :     zbin_oq_high = ZBIN_OQ_MAX;
    3785             :   }
    3786             : #endif
    3787             : 
    3788             :   /* Setup background Q adjustment for error resilient mode.
    3789             :    * For multi-layer encodes only enable this for the base layer.
    3790             :   */
    3791           0 :   if (cpi->cyclic_refresh_mode_enabled) {
    3792             :     // Special case for screen_content_mode with golden frame updates.
    3793           0 :     int disable_cr_gf =
    3794           0 :         (cpi->oxcf.screen_content_mode == 2 && cm->refresh_golden_frame);
    3795           0 :     if (cpi->current_layer == 0 && cpi->force_maxqp == 0 && !disable_cr_gf) {
    3796           0 :       cyclic_background_refresh(cpi, Q, 0);
    3797             :     } else {
    3798           0 :       disable_segmentation(cpi);
    3799             :     }
    3800             :   }
    3801             : 
    3802           0 :   vp8_compute_frame_size_bounds(cpi, &frame_under_shoot_limit,
    3803             :                                 &frame_over_shoot_limit);
    3804             : 
    3805             : #if !CONFIG_REALTIME_ONLY
    3806             :   /* Limit Q range for the adaptive loop. */
    3807           0 :   bottom_index = cpi->active_best_quality;
    3808           0 :   top_index = cpi->active_worst_quality;
    3809           0 :   q_low = cpi->active_best_quality;
    3810           0 :   q_high = cpi->active_worst_quality;
    3811             : #endif
    3812             : 
    3813           0 :   vp8_save_coding_context(cpi);
    3814             : 
    3815           0 :   loop_count = 0;
    3816             : 
    3817           0 :   scale_and_extend_source(cpi->un_scaled_source, cpi);
    3818             : 
    3819             : #if CONFIG_TEMPORAL_DENOISING && CONFIG_POSTPROC
    3820             :   // Option to apply spatial blur under the aggressive or adaptive
    3821             :   // (temporal denoising) mode.
    3822           0 :   if (cpi->oxcf.noise_sensitivity >= 3) {
    3823           0 :     if (cpi->denoiser.denoise_pars.spatial_blur != 0) {
    3824           0 :       vp8_de_noise(cm, cpi->Source, cpi->Source,
    3825           0 :                    cpi->denoiser.denoise_pars.spatial_blur, 1, 0, 0);
    3826             :     }
    3827             :   }
    3828             : #endif
    3829             : 
    3830             : #if !(CONFIG_REALTIME_ONLY) && CONFIG_POSTPROC && !(CONFIG_TEMPORAL_DENOISING)
    3831             : 
    3832             :   if (cpi->oxcf.noise_sensitivity > 0) {
    3833             :     unsigned char *src;
    3834             :     int l = 0;
    3835             : 
    3836             :     switch (cpi->oxcf.noise_sensitivity) {
    3837             :       case 1: l = 20; break;
    3838             :       case 2: l = 40; break;
    3839             :       case 3: l = 60; break;
    3840             :       case 4: l = 80; break;
    3841             :       case 5: l = 100; break;
    3842             :       case 6: l = 150; break;
    3843             :     }
    3844             : 
    3845             :     if (cm->frame_type == KEY_FRAME) {
    3846             :       vp8_de_noise(cm, cpi->Source, cpi->Source, l, 1, 0, 1);
    3847             :     } else {
    3848             :       vp8_de_noise(cm, cpi->Source, cpi->Source, l, 1, 0, 1);
    3849             : 
    3850             :       src = cpi->Source->y_buffer;
    3851             : 
    3852             :       if (cpi->Source->y_stride < 0) {
    3853             :         src += cpi->Source->y_stride * (cpi->Source->y_height - 1);
    3854             :       }
    3855             :     }
    3856             :   }
    3857             : 
    3858             : #endif
    3859             : 
    3860             : #ifdef OUTPUT_YUV_SRC
    3861             :   vp8_write_yuv_frame(yuv_file, cpi->Source);
    3862             : #endif
    3863             : 
    3864             :   do {
    3865           0 :     vpx_clear_system_state();
    3866             : 
    3867           0 :     vp8_set_quantizer(cpi, Q);
    3868             : 
    3869             :     /* setup skip prob for costing in mode/mv decision */
    3870           0 :     if (cpi->common.mb_no_coeff_skip) {
    3871           0 :       cpi->prob_skip_false = cpi->base_skip_false_prob[Q];
    3872             : 
    3873           0 :       if (cm->frame_type != KEY_FRAME) {
    3874           0 :         if (cpi->common.refresh_alt_ref_frame) {
    3875           0 :           if (cpi->last_skip_false_probs[2] != 0) {
    3876           0 :             cpi->prob_skip_false = cpi->last_skip_false_probs[2];
    3877             :           }
    3878             : 
    3879             :           /*
    3880             :                               if(cpi->last_skip_false_probs[2]!=0 && abs(Q-
    3881             :              cpi->last_skip_probs_q[2])<=16 )
    3882             :              cpi->prob_skip_false = cpi->last_skip_false_probs[2];
    3883             :                               else if (cpi->last_skip_false_probs[2]!=0)
    3884             :              cpi->prob_skip_false = (cpi->last_skip_false_probs[2]  +
    3885             :              cpi->prob_skip_false ) / 2;
    3886             :              */
    3887           0 :         } else if (cpi->common.refresh_golden_frame) {
    3888           0 :           if (cpi->last_skip_false_probs[1] != 0) {
    3889           0 :             cpi->prob_skip_false = cpi->last_skip_false_probs[1];
    3890             :           }
    3891             : 
    3892             :           /*
    3893             :                               if(cpi->last_skip_false_probs[1]!=0 && abs(Q-
    3894             :              cpi->last_skip_probs_q[1])<=16 )
    3895             :              cpi->prob_skip_false = cpi->last_skip_false_probs[1];
    3896             :                               else if (cpi->last_skip_false_probs[1]!=0)
    3897             :              cpi->prob_skip_false = (cpi->last_skip_false_probs[1]  +
    3898             :              cpi->prob_skip_false ) / 2;
    3899             :              */
    3900             :         } else {
    3901           0 :           if (cpi->last_skip_false_probs[0] != 0) {
    3902           0 :             cpi->prob_skip_false = cpi->last_skip_false_probs[0];
    3903             :           }
    3904             : 
    3905             :           /*
    3906             :           if(cpi->last_skip_false_probs[0]!=0 && abs(Q-
    3907             :           cpi->last_skip_probs_q[0])<=16 )
    3908             :               cpi->prob_skip_false = cpi->last_skip_false_probs[0];
    3909             :           else if(cpi->last_skip_false_probs[0]!=0)
    3910             :               cpi->prob_skip_false = (cpi->last_skip_false_probs[0]  +
    3911             :           cpi->prob_skip_false ) / 2;
    3912             :               */
    3913             :         }
    3914             : 
    3915             :         /* as this is for cost estimate, let's make sure it does not
    3916             :          * go extreme eitehr way
    3917             :          */
    3918           0 :         if (cpi->prob_skip_false < 5) cpi->prob_skip_false = 5;
    3919             : 
    3920           0 :         if (cpi->prob_skip_false > 250) cpi->prob_skip_false = 250;
    3921             : 
    3922           0 :         if (cpi->oxcf.number_of_layers == 1 && cpi->is_src_frame_alt_ref) {
    3923           0 :           cpi->prob_skip_false = 1;
    3924             :         }
    3925             :       }
    3926             : 
    3927             : #if 0
    3928             : 
    3929             :             if (cpi->pass != 1)
    3930             :             {
    3931             :                 FILE *f = fopen("skip.stt", "a");
    3932             :                 fprintf(f, "%d, %d, %4d ", cpi->common.refresh_golden_frame, cpi->common.refresh_alt_ref_frame, cpi->prob_skip_false);
    3933             :                 fclose(f);
    3934             :             }
    3935             : 
    3936             : #endif
    3937             :     }
    3938             : 
    3939           0 :     if (cm->frame_type == KEY_FRAME) {
    3940           0 :       if (resize_key_frame(cpi)) {
    3941             :         /* If the frame size has changed, need to reset Q, quantizer,
    3942             :          * and background refresh.
    3943             :          */
    3944           0 :         Q = vp8_regulate_q(cpi, cpi->this_frame_target);
    3945           0 :         if (cpi->cyclic_refresh_mode_enabled) {
    3946           0 :           if (cpi->current_layer == 0) {
    3947           0 :             cyclic_background_refresh(cpi, Q, 0);
    3948             :           } else {
    3949           0 :             disable_segmentation(cpi);
    3950             :           }
    3951             :         }
    3952             :         // Reset the zero_last counter to 0 on key frame.
    3953           0 :         memset(cpi->consec_zero_last, 0, cm->mb_rows * cm->mb_cols);
    3954           0 :         memset(cpi->consec_zero_last_mvbias, 0,
    3955           0 :                (cpi->common.mb_rows * cpi->common.mb_cols));
    3956           0 :         vp8_set_quantizer(cpi, Q);
    3957             :       }
    3958             : 
    3959           0 :       vp8_setup_key_frame(cpi);
    3960             :     }
    3961             : 
    3962             : #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
    3963             :     {
    3964             :       if (cpi->oxcf.error_resilient_mode) cm->refresh_entropy_probs = 0;
    3965             : 
    3966             :       if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS) {
    3967             :         if (cm->frame_type == KEY_FRAME) cm->refresh_entropy_probs = 1;
    3968             :       }
    3969             : 
    3970             :       if (cm->refresh_entropy_probs == 0) {
    3971             :         /* save a copy for later refresh */
    3972             :         memcpy(&cm->lfc, &cm->fc, sizeof(cm->fc));
    3973             :       }
    3974             : 
    3975             :       vp8_update_coef_context(cpi);
    3976             : 
    3977             :       vp8_update_coef_probs(cpi);
    3978             : 
    3979             :       /* transform / motion compensation build reconstruction frame
    3980             :        * +pack coef partitions
    3981             :        */
    3982             :       vp8_encode_frame(cpi);
    3983             : 
    3984             :       /* cpi->projected_frame_size is not needed for RT mode */
    3985             :     }
    3986             : #else
    3987             :     /* transform / motion compensation build reconstruction frame */
    3988           0 :     vp8_encode_frame(cpi);
    3989           0 :     if (cpi->oxcf.screen_content_mode == 2) {
    3990           0 :       if (vp8_drop_encodedframe_overshoot(cpi, Q)) return;
    3991             :     }
    3992             : 
    3993           0 :     cpi->projected_frame_size -= vp8_estimate_entropy_savings(cpi);
    3994           0 :     cpi->projected_frame_size =
    3995           0 :         (cpi->projected_frame_size > 0) ? cpi->projected_frame_size : 0;
    3996             : #endif
    3997           0 :     vpx_clear_system_state();
    3998             : 
    3999             :     /* Test to see if the stats generated for this frame indicate that
    4000             :      * we should have coded a key frame (assuming that we didn't)!
    4001             :      */
    4002             : 
    4003           0 :     if (cpi->pass != 2 && cpi->oxcf.auto_key && cm->frame_type != KEY_FRAME &&
    4004           0 :         cpi->compressor_speed != 2) {
    4005             : #if !CONFIG_REALTIME_ONLY
    4006           0 :       if (decide_key_frame(cpi)) {
    4007             :         /* Reset all our sizing numbers and recode */
    4008           0 :         cm->frame_type = KEY_FRAME;
    4009             : 
    4010           0 :         vp8_pick_frame_size(cpi);
    4011             : 
    4012             :         /* Clear the Alt reference frame active flag when we have
    4013             :          * a key frame
    4014             :          */
    4015           0 :         cpi->source_alt_ref_active = 0;
    4016             : 
    4017             :         // Set the loop filter deltas and segmentation map update
    4018           0 :         setup_features(cpi);
    4019             : 
    4020           0 :         vp8_restore_coding_context(cpi);
    4021             : 
    4022           0 :         Q = vp8_regulate_q(cpi, cpi->this_frame_target);
    4023             : 
    4024           0 :         vp8_compute_frame_size_bounds(cpi, &frame_under_shoot_limit,
    4025             :                                       &frame_over_shoot_limit);
    4026             : 
    4027             :         /* Limit Q range for the adaptive loop. */
    4028           0 :         bottom_index = cpi->active_best_quality;
    4029           0 :         top_index = cpi->active_worst_quality;
    4030           0 :         q_low = cpi->active_best_quality;
    4031           0 :         q_high = cpi->active_worst_quality;
    4032             : 
    4033           0 :         loop_count++;
    4034           0 :         Loop = 1;
    4035             : 
    4036           0 :         continue;
    4037             :       }
    4038             : #endif
    4039             :     }
    4040             : 
    4041           0 :     vpx_clear_system_state();
    4042             : 
    4043           0 :     if (frame_over_shoot_limit == 0) frame_over_shoot_limit = 1;
    4044             : 
    4045             :     /* Are we are overshooting and up against the limit of active max Q. */
    4046           0 :     if (((cpi->pass != 2) ||
    4047           0 :          (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)) &&
    4048           0 :         (Q == cpi->active_worst_quality) &&
    4049           0 :         (cpi->active_worst_quality < cpi->worst_quality) &&
    4050           0 :         (cpi->projected_frame_size > frame_over_shoot_limit)) {
    4051           0 :       int over_size_percent =
    4052           0 :           ((cpi->projected_frame_size - frame_over_shoot_limit) * 100) /
    4053             :           frame_over_shoot_limit;
    4054             : 
    4055             :       /* If so is there any scope for relaxing it */
    4056           0 :       while ((cpi->active_worst_quality < cpi->worst_quality) &&
    4057             :              (over_size_percent > 0)) {
    4058           0 :         cpi->active_worst_quality++;
    4059             :         /* Assume 1 qstep = about 4% on frame size. */
    4060           0 :         over_size_percent = (int)(over_size_percent * 0.96);
    4061             :       }
    4062             : #if !CONFIG_REALTIME_ONLY
    4063           0 :       top_index = cpi->active_worst_quality;
    4064             : #endif  // !CONFIG_REALTIME_ONLY
    4065             :         /* If we have updated the active max Q do not call
    4066             :          * vp8_update_rate_correction_factors() this loop.
    4067             :          */
    4068           0 :       active_worst_qchanged = 1;
    4069             :     } else {
    4070           0 :       active_worst_qchanged = 0;
    4071             :     }
    4072             : 
    4073             : #if CONFIG_REALTIME_ONLY
    4074             :     Loop = 0;
    4075             : #else
    4076             :     /* Special case handling for forced key frames */
    4077           0 :     if ((cm->frame_type == KEY_FRAME) && cpi->this_key_frame_forced) {
    4078           0 :       int last_q = Q;
    4079           0 :       int kf_err = vp8_calc_ss_err(cpi->Source, &cm->yv12_fb[cm->new_fb_idx]);
    4080             : 
    4081             :       /* The key frame is not good enough */
    4082           0 :       if (kf_err > ((cpi->ambient_err * 7) >> 3)) {
    4083             :         /* Lower q_high */
    4084           0 :         q_high = (Q > q_low) ? (Q - 1) : q_low;
    4085             : 
    4086             :         /* Adjust Q */
    4087           0 :         Q = (q_high + q_low) >> 1;
    4088             :       }
    4089             :       /* The key frame is much better than the previous frame */
    4090           0 :       else if (kf_err < (cpi->ambient_err >> 1)) {
    4091             :         /* Raise q_low */
    4092           0 :         q_low = (Q < q_high) ? (Q + 1) : q_high;
    4093             : 
    4094             :         /* Adjust Q */
    4095           0 :         Q = (q_high + q_low + 1) >> 1;
    4096             :       }
    4097             : 
    4098             :       /* Clamp Q to upper and lower limits: */
    4099           0 :       if (Q > q_high) {
    4100           0 :         Q = q_high;
    4101           0 :       } else if (Q < q_low) {
    4102           0 :         Q = q_low;
    4103             :       }
    4104             : 
    4105           0 :       Loop = Q != last_q;
    4106             :     }
    4107             : 
    4108             :     /* Is the projected frame size out of range and are we allowed
    4109             :      * to attempt to recode.
    4110             :      */
    4111           0 :     else if (recode_loop_test(cpi, frame_over_shoot_limit,
    4112             :                               frame_under_shoot_limit, Q, top_index,
    4113             :                               bottom_index)) {
    4114           0 :       int last_q = Q;
    4115           0 :       int Retries = 0;
    4116             : 
    4117             :       /* Frame size out of permitted range. Update correction factor
    4118             :        * & compute new Q to try...
    4119             :        */
    4120             : 
    4121             :       /* Frame is too large */
    4122           0 :       if (cpi->projected_frame_size > cpi->this_frame_target) {
    4123             :         /* Raise Qlow as to at least the current value */
    4124           0 :         q_low = (Q < q_high) ? (Q + 1) : q_high;
    4125             : 
    4126             :         /* If we are using over quant do the same for zbin_oq_low */
    4127           0 :         if (cpi->mb.zbin_over_quant > 0) {
    4128           0 :           zbin_oq_low = (cpi->mb.zbin_over_quant < zbin_oq_high)
    4129           0 :                             ? (cpi->mb.zbin_over_quant + 1)
    4130           0 :                             : zbin_oq_high;
    4131             :         }
    4132             : 
    4133           0 :         if (undershoot_seen) {
    4134             :           /* Update rate_correction_factor unless
    4135             :            * cpi->active_worst_quality has changed.
    4136             :            */
    4137           0 :           if (!active_worst_qchanged) {
    4138           0 :             vp8_update_rate_correction_factors(cpi, 1);
    4139             :           }
    4140             : 
    4141           0 :           Q = (q_high + q_low + 1) / 2;
    4142             : 
    4143             :           /* Adjust cpi->zbin_over_quant (only allowed when Q
    4144             :            * is max)
    4145             :            */
    4146           0 :           if (Q < MAXQ) {
    4147           0 :             cpi->mb.zbin_over_quant = 0;
    4148             :           } else {
    4149           0 :             zbin_oq_low = (cpi->mb.zbin_over_quant < zbin_oq_high)
    4150           0 :                               ? (cpi->mb.zbin_over_quant + 1)
    4151           0 :                               : zbin_oq_high;
    4152           0 :             cpi->mb.zbin_over_quant = (zbin_oq_high + zbin_oq_low) / 2;
    4153             :           }
    4154             :         } else {
    4155             :           /* Update rate_correction_factor unless
    4156             :            * cpi->active_worst_quality has changed.
    4157             :            */
    4158           0 :           if (!active_worst_qchanged) {
    4159           0 :             vp8_update_rate_correction_factors(cpi, 0);
    4160             :           }
    4161             : 
    4162           0 :           Q = vp8_regulate_q(cpi, cpi->this_frame_target);
    4163             : 
    4164           0 :           while (((Q < q_low) || (cpi->mb.zbin_over_quant < zbin_oq_low)) &&
    4165             :                  (Retries < 10)) {
    4166           0 :             vp8_update_rate_correction_factors(cpi, 0);
    4167           0 :             Q = vp8_regulate_q(cpi, cpi->this_frame_target);
    4168           0 :             Retries++;
    4169             :           }
    4170             :         }
    4171             : 
    4172           0 :         overshoot_seen = 1;
    4173             :       }
    4174             :       /* Frame is too small */
    4175             :       else {
    4176           0 :         if (cpi->mb.zbin_over_quant == 0) {
    4177             :           /* Lower q_high if not using over quant */
    4178           0 :           q_high = (Q > q_low) ? (Q - 1) : q_low;
    4179             :         } else {
    4180             :           /* else lower zbin_oq_high */
    4181           0 :           zbin_oq_high = (cpi->mb.zbin_over_quant > zbin_oq_low)
    4182           0 :                              ? (cpi->mb.zbin_over_quant - 1)
    4183           0 :                              : zbin_oq_low;
    4184             :         }
    4185             : 
    4186           0 :         if (overshoot_seen) {
    4187             :           /* Update rate_correction_factor unless
    4188             :            * cpi->active_worst_quality has changed.
    4189             :            */
    4190           0 :           if (!active_worst_qchanged) {
    4191           0 :             vp8_update_rate_correction_factors(cpi, 1);
    4192             :           }
    4193             : 
    4194           0 :           Q = (q_high + q_low) / 2;
    4195             : 
    4196             :           /* Adjust cpi->zbin_over_quant (only allowed when Q
    4197             :            * is max)
    4198             :            */
    4199           0 :           if (Q < MAXQ) {
    4200           0 :             cpi->mb.zbin_over_quant = 0;
    4201             :           } else {
    4202           0 :             cpi->mb.zbin_over_quant = (zbin_oq_high + zbin_oq_low) / 2;
    4203             :           }
    4204             :         } else {
    4205             :           /* Update rate_correction_factor unless
    4206             :            * cpi->active_worst_quality has changed.
    4207             :            */
    4208           0 :           if (!active_worst_qchanged) {
    4209           0 :             vp8_update_rate_correction_factors(cpi, 0);
    4210             :           }
    4211             : 
    4212           0 :           Q = vp8_regulate_q(cpi, cpi->this_frame_target);
    4213             : 
    4214             :           /* Special case reset for qlow for constrained quality.
    4215             :            * This should only trigger where there is very substantial
    4216             :            * undershoot on a frame and the auto cq level is above
    4217             :            * the user passsed in value.
    4218             :            */
    4219           0 :           if ((cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
    4220             :               (Q < q_low)) {
    4221           0 :             q_low = Q;
    4222             :           }
    4223             : 
    4224           0 :           while (((Q > q_high) || (cpi->mb.zbin_over_quant > zbin_oq_high)) &&
    4225             :                  (Retries < 10)) {
    4226           0 :             vp8_update_rate_correction_factors(cpi, 0);
    4227           0 :             Q = vp8_regulate_q(cpi, cpi->this_frame_target);
    4228           0 :             Retries++;
    4229             :           }
    4230             :         }
    4231             : 
    4232           0 :         undershoot_seen = 1;
    4233             :       }
    4234             : 
    4235             :       /* Clamp Q to upper and lower limits: */
    4236           0 :       if (Q > q_high) {
    4237           0 :         Q = q_high;
    4238           0 :       } else if (Q < q_low) {
    4239           0 :         Q = q_low;
    4240             :       }
    4241             : 
    4242             :       /* Clamp cpi->zbin_over_quant */
    4243           0 :       cpi->mb.zbin_over_quant = (cpi->mb.zbin_over_quant < zbin_oq_low)
    4244             :                                     ? zbin_oq_low
    4245           0 :                                     : (cpi->mb.zbin_over_quant > zbin_oq_high)
    4246             :                                           ? zbin_oq_high
    4247           0 :                                           : cpi->mb.zbin_over_quant;
    4248             : 
    4249           0 :       Loop = Q != last_q;
    4250             :     } else {
    4251           0 :       Loop = 0;
    4252             :     }
    4253             : #endif  // CONFIG_REALTIME_ONLY
    4254             : 
    4255           0 :     if (cpi->is_src_frame_alt_ref) Loop = 0;
    4256             : 
    4257           0 :     if (Loop == 1) {
    4258           0 :       vp8_restore_coding_context(cpi);
    4259           0 :       loop_count++;
    4260             : #if CONFIG_INTERNAL_STATS
    4261             :       cpi->tot_recode_hits++;
    4262             : #endif
    4263             :     }
    4264           0 :   } while (Loop == 1);
    4265             : 
    4266             : #if defined(DROP_UNCODED_FRAMES)
    4267             :   /* if there are no coded macroblocks at all drop this frame */
    4268             :   if (cpi->common.MBs == cpi->mb.skip_true_count &&
    4269             :       (cpi->drop_frame_count & 7) != 7 && cm->frame_type != KEY_FRAME) {
    4270             :     cpi->common.current_video_frame++;
    4271             :     cpi->frames_since_key++;
    4272             :     cpi->drop_frame_count++;
    4273             :     // We advance the temporal pattern for dropped frames.
    4274             :     cpi->temporal_pattern_counter++;
    4275             :     return;
    4276             :   }
    4277             :   cpi->drop_frame_count = 0;
    4278             : #endif
    4279             : 
    4280             : #if 0
    4281             :     /* Experimental code for lagged and one pass
    4282             :      * Update stats used for one pass GF selection
    4283             :      */
    4284             :     {
    4285             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_coded_error = (double)cpi->prediction_error;
    4286             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_intra_error = (double)cpi->intra_error;
    4287             :         cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_pcnt_inter = (double)(100 - cpi->this_frame_percent_intra) / 100.0;
    4288             :     }
    4289             : #endif
    4290             : 
    4291             :   /* Special case code to reduce pulsing when key frames are forced at a
    4292             :    * fixed interval. Note the reconstruction error if it is the frame before
    4293             :    * the force key frame
    4294             :    */
    4295           0 :   if (cpi->next_key_frame_forced && (cpi->twopass.frames_to_key == 0)) {
    4296           0 :     cpi->ambient_err =
    4297           0 :         vp8_calc_ss_err(cpi->Source, &cm->yv12_fb[cm->new_fb_idx]);
    4298             :   }
    4299             : 
    4300             : /* This frame's MVs are saved and will be used in next frame's MV predictor.
    4301             :  * Last frame has one more line(add to bottom) and one more column(add to
    4302             :  * right) than cm->mip. The edge elements are initialized to 0.
    4303             :  */
    4304             : #if CONFIG_MULTI_RES_ENCODING
    4305           0 :   if (!cpi->oxcf.mr_encoder_id && cm->show_frame)
    4306             : #else
    4307             :   if (cm->show_frame) /* do not save for altref frame */
    4308             : #endif
    4309             :   {
    4310             :     int mb_row;
    4311             :     int mb_col;
    4312             :     /* Point to beginning of allocated MODE_INFO arrays. */
    4313           0 :     MODE_INFO *tmp = cm->mip;
    4314             : 
    4315           0 :     if (cm->frame_type != KEY_FRAME) {
    4316           0 :       for (mb_row = 0; mb_row < cm->mb_rows + 1; ++mb_row) {
    4317           0 :         for (mb_col = 0; mb_col < cm->mb_cols + 1; ++mb_col) {
    4318           0 :           if (tmp->mbmi.ref_frame != INTRA_FRAME) {
    4319           0 :             cpi->lfmv[mb_col + mb_row * (cm->mode_info_stride + 1)].as_int =
    4320           0 :                 tmp->mbmi.mv.as_int;
    4321             :           }
    4322             : 
    4323           0 :           cpi->lf_ref_frame_sign_bias[mb_col +
    4324           0 :                                       mb_row * (cm->mode_info_stride + 1)] =
    4325           0 :               cm->ref_frame_sign_bias[tmp->mbmi.ref_frame];
    4326           0 :           cpi->lf_ref_frame[mb_col + mb_row * (cm->mode_info_stride + 1)] =
    4327           0 :               tmp->mbmi.ref_frame;
    4328           0 :           tmp++;
    4329             :         }
    4330             :       }
    4331             :     }
    4332             :   }
    4333             : 
    4334             :   /* Count last ref frame 0,0 usage on current encoded frame. */
    4335             :   {
    4336             :     int mb_row;
    4337             :     int mb_col;
    4338             :     /* Point to beginning of MODE_INFO arrays. */
    4339           0 :     MODE_INFO *tmp = cm->mi;
    4340             : 
    4341           0 :     cpi->zeromv_count = 0;
    4342             : 
    4343           0 :     if (cm->frame_type != KEY_FRAME) {
    4344           0 :       for (mb_row = 0; mb_row < cm->mb_rows; ++mb_row) {
    4345           0 :         for (mb_col = 0; mb_col < cm->mb_cols; ++mb_col) {
    4346           0 :           if (tmp->mbmi.mode == ZEROMV && tmp->mbmi.ref_frame == LAST_FRAME) {
    4347           0 :             cpi->zeromv_count++;
    4348             :           }
    4349           0 :           tmp++;
    4350             :         }
    4351           0 :         tmp++;
    4352             :       }
    4353             :     }
    4354             :   }
    4355             : 
    4356             : #if CONFIG_MULTI_RES_ENCODING
    4357           0 :   vp8_cal_dissimilarity(cpi);
    4358             : #endif
    4359             : 
    4360             :   /* Update the GF useage maps.
    4361             :    * This is done after completing the compression of a frame when all
    4362             :    * modes etc. are finalized but before loop filter
    4363             :    */
    4364           0 :   if (cpi->oxcf.number_of_layers == 1) {
    4365           0 :     vp8_update_gf_useage_maps(cpi, cm, &cpi->mb);
    4366             :   }
    4367             : 
    4368           0 :   if (cm->frame_type == KEY_FRAME) cm->refresh_last_frame = 1;
    4369             : 
    4370             : #if 0
    4371             :     {
    4372             :         FILE *f = fopen("gfactive.stt", "a");
    4373             :         fprintf(f, "%8d %8d %8d %8d %8d\n", cm->current_video_frame, (100 * cpi->gf_active_count) / (cpi->common.mb_rows * cpi->common.mb_cols), cpi->this_iiratio, cpi->next_iiratio, cm->refresh_golden_frame);
    4374             :         fclose(f);
    4375             :     }
    4376             : #endif
    4377             : 
    4378             :   /* For inter frames the current default behavior is that when
    4379             :    * cm->refresh_golden_frame is set we copy the old GF over to the ARF buffer
    4380             :    * This is purely an encoder decision at present.
    4381             :    */
    4382           0 :   if (!cpi->oxcf.error_resilient_mode && cm->refresh_golden_frame) {
    4383           0 :     cm->copy_buffer_to_arf = 2;
    4384             :   } else {
    4385           0 :     cm->copy_buffer_to_arf = 0;
    4386             :   }
    4387             : 
    4388           0 :   cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx];
    4389             : 
    4390             : #if CONFIG_TEMPORAL_DENOISING
    4391             :   // Get some measure of the amount of noise, by measuring the (partial) mse
    4392             :   // between source and denoised buffer, for y channel. Partial refers to
    4393             :   // computing the sse for a sub-sample of the frame (i.e., skip x blocks along
    4394             :   // row/column),
    4395             :   // and only for blocks in that set that are consecutive ZEROMV_LAST mode.
    4396             :   // Do this every ~8 frames, to further reduce complexity.
    4397             :   // TODO(marpan): Keep this for now for the case cpi->oxcf.noise_sensitivity <
    4398             :   // 4,
    4399             :   // should be removed in favor of the process_denoiser_mode_change() function
    4400             :   // below.
    4401           0 :   if (cpi->oxcf.noise_sensitivity > 0 && cpi->oxcf.noise_sensitivity < 4 &&
    4402           0 :       !cpi->oxcf.screen_content_mode && cpi->frames_since_key % 8 == 0 &&
    4403           0 :       cm->frame_type != KEY_FRAME) {
    4404           0 :     cpi->mse_source_denoised = measure_square_diff_partial(
    4405             :         &cpi->denoiser.yv12_running_avg[INTRA_FRAME], cpi->Source, cpi);
    4406             :   }
    4407             : 
    4408             :   // For the adaptive denoising mode (noise_sensitivity == 4), sample the mse
    4409             :   // of source diff (between current and previous frame), and determine if we
    4410             :   // should switch the denoiser mode. Sampling refers to computing the mse for
    4411             :   // a sub-sample of the frame (i.e., skip x blocks along row/column), and
    4412             :   // only for blocks in that set that have used ZEROMV LAST, along with some
    4413             :   // constraint on the sum diff between blocks. This process is called every
    4414             :   // ~8 frames, to further reduce complexity.
    4415           0 :   if (cpi->oxcf.noise_sensitivity == 4 && !cpi->oxcf.screen_content_mode &&
    4416           0 :       cpi->frames_since_key % 8 == 0 && cm->frame_type != KEY_FRAME) {
    4417           0 :     process_denoiser_mode_change(cpi);
    4418             :   }
    4419             : #endif
    4420             : 
    4421             : #if CONFIG_MULTITHREAD
    4422           0 :   if (cpi->b_multi_threaded) {
    4423             :     /* start loopfilter in separate thread */
    4424           0 :     sem_post(&cpi->h_event_start_lpf);
    4425           0 :     cpi->b_lpf_running = 1;
    4426             :   } else
    4427             : #endif
    4428             :   {
    4429           0 :     vp8_loopfilter_frame(cpi, cm);
    4430             :   }
    4431             : 
    4432           0 :   update_reference_frames(cpi);
    4433             : 
    4434             : #ifdef OUTPUT_YUV_DENOISED
    4435             :   vp8_write_yuv_frame(yuv_denoised_file,
    4436             :                       &cpi->denoiser.yv12_running_avg[INTRA_FRAME]);
    4437             : #endif
    4438             : 
    4439             : #if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
    4440           0 :   if (cpi->oxcf.error_resilient_mode) {
    4441           0 :     cm->refresh_entropy_probs = 0;
    4442             :   }
    4443             : #endif
    4444             : 
    4445             : #if CONFIG_MULTITHREAD
    4446             :   /* wait that filter_level is picked so that we can continue with stream
    4447             :    * packing */
    4448           0 :   if (cpi->b_multi_threaded) sem_wait(&cpi->h_event_end_lpf);
    4449             : #endif
    4450             : 
    4451             :   /* build the bitstream */
    4452           0 :   vp8_pack_bitstream(cpi, dest, dest_end, size);
    4453             : 
    4454             :   /* Move storing frame_type out of the above loop since it is also
    4455             :    * needed in motion search besides loopfilter */
    4456           0 :   cm->last_frame_type = cm->frame_type;
    4457             : 
    4458             :   /* Update rate control heuristics */
    4459           0 :   cpi->total_byte_count += (*size);
    4460           0 :   cpi->projected_frame_size = (int)(*size) << 3;
    4461             : 
    4462           0 :   if (cpi->oxcf.number_of_layers > 1) {
    4463             :     unsigned int i;
    4464           0 :     for (i = cpi->current_layer + 1; i < cpi->oxcf.number_of_layers; ++i) {
    4465           0 :       cpi->layer_context[i].total_byte_count += (*size);
    4466             :     }
    4467             :   }
    4468             : 
    4469           0 :   if (!active_worst_qchanged) vp8_update_rate_correction_factors(cpi, 2);
    4470             : 
    4471           0 :   cpi->last_q[cm->frame_type] = cm->base_qindex;
    4472             : 
    4473           0 :   if (cm->frame_type == KEY_FRAME) {
    4474           0 :     vp8_adjust_key_frame_context(cpi);
    4475             :   }
    4476             : 
    4477             :   /* Keep a record of ambient average Q. */
    4478           0 :   if (cm->frame_type != KEY_FRAME) {
    4479           0 :     cpi->avg_frame_qindex =
    4480           0 :         (2 + 3 * cpi->avg_frame_qindex + cm->base_qindex) >> 2;
    4481             :   }
    4482             : 
    4483             :   /* Keep a record from which we can calculate the average Q excluding
    4484             :    * GF updates and key frames
    4485             :    */
    4486           0 :   if ((cm->frame_type != KEY_FRAME) &&
    4487           0 :       ((cpi->oxcf.number_of_layers > 1) ||
    4488           0 :        (!cm->refresh_golden_frame && !cm->refresh_alt_ref_frame))) {
    4489           0 :     cpi->ni_frames++;
    4490             : 
    4491             :     /* Calculate the average Q for normal inter frames (not key or GFU
    4492             :      * frames).
    4493             :      */
    4494           0 :     if (cpi->pass == 2) {
    4495           0 :       cpi->ni_tot_qi += Q;
    4496           0 :       cpi->ni_av_qi = (cpi->ni_tot_qi / cpi->ni_frames);
    4497             :     } else {
    4498             :       /* Damp value for first few frames */
    4499           0 :       if (cpi->ni_frames > 150) {
    4500           0 :         cpi->ni_tot_qi += Q;
    4501           0 :         cpi->ni_av_qi = (cpi->ni_tot_qi / cpi->ni_frames);
    4502             :       }
    4503             :       /* For one pass, early in the clip ... average the current frame Q
    4504             :        * value with the worstq entered by the user as a dampening measure
    4505             :        */
    4506             :       else {
    4507           0 :         cpi->ni_tot_qi += Q;
    4508           0 :         cpi->ni_av_qi =
    4509           0 :             ((cpi->ni_tot_qi / cpi->ni_frames) + cpi->worst_quality + 1) / 2;
    4510             :       }
    4511             : 
    4512             :       /* If the average Q is higher than what was used in the last
    4513             :        * frame (after going through the recode loop to keep the frame
    4514             :        * size within range) then use the last frame value - 1. The -1
    4515             :        * is designed to stop Q and hence the data rate, from
    4516             :        * progressively falling away during difficult sections, but at
    4517             :        * the same time reduce the number of itterations around the
    4518             :        * recode loop.
    4519             :        */
    4520           0 :       if (Q > cpi->ni_av_qi) cpi->ni_av_qi = Q - 1;
    4521             :     }
    4522             :   }
    4523             : 
    4524             :   /* Update the buffer level variable. */
    4525             :   /* Non-viewable frames are a special case and are treated as pure overhead. */
    4526           0 :   if (!cm->show_frame) {
    4527           0 :     cpi->bits_off_target -= cpi->projected_frame_size;
    4528             :   } else {
    4529           0 :     cpi->bits_off_target +=
    4530           0 :         cpi->av_per_frame_bandwidth - cpi->projected_frame_size;
    4531             :   }
    4532             : 
    4533             :   /* Clip the buffer level to the maximum specified buffer size */
    4534           0 :   if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size) {
    4535           0 :     cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
    4536             :   }
    4537             : 
    4538             :   // If the frame dropper is not enabled, don't let the buffer level go below
    4539             :   // some threshold, given here by -|maximum_buffer_size|. For now we only do
    4540             :   // this for screen content input.
    4541           0 :   if (cpi->drop_frames_allowed == 0 && cpi->oxcf.screen_content_mode &&
    4542           0 :       cpi->bits_off_target < -cpi->oxcf.maximum_buffer_size) {
    4543           0 :     cpi->bits_off_target = -cpi->oxcf.maximum_buffer_size;
    4544             :   }
    4545             : 
    4546             :   /* Rolling monitors of whether we are over or underspending used to
    4547             :    * help regulate min and Max Q in two pass.
    4548             :    */
    4549           0 :   cpi->rolling_target_bits =
    4550           0 :       ((cpi->rolling_target_bits * 3) + cpi->this_frame_target + 2) / 4;
    4551           0 :   cpi->rolling_actual_bits =
    4552           0 :       ((cpi->rolling_actual_bits * 3) + cpi->projected_frame_size + 2) / 4;
    4553           0 :   cpi->long_rolling_target_bits =
    4554           0 :       ((cpi->long_rolling_target_bits * 31) + cpi->this_frame_target + 16) / 32;
    4555           0 :   cpi->long_rolling_actual_bits =
    4556           0 :       ((cpi->long_rolling_actual_bits * 31) + cpi->projected_frame_size + 16) /
    4557             :       32;
    4558             : 
    4559             :   /* Actual bits spent */
    4560           0 :   cpi->total_actual_bits += cpi->projected_frame_size;
    4561             : 
    4562             :   /* Debug stats */
    4563           0 :   cpi->total_target_vs_actual +=
    4564           0 :       (cpi->this_frame_target - cpi->projected_frame_size);
    4565             : 
    4566           0 :   cpi->buffer_level = cpi->bits_off_target;
    4567             : 
    4568             :   /* Propagate values to higher temporal layers */
    4569           0 :   if (cpi->oxcf.number_of_layers > 1) {
    4570             :     unsigned int i;
    4571             : 
    4572           0 :     for (i = cpi->current_layer + 1; i < cpi->oxcf.number_of_layers; ++i) {
    4573           0 :       LAYER_CONTEXT *lc = &cpi->layer_context[i];
    4574           0 :       int bits_off_for_this_layer = (int)(lc->target_bandwidth / lc->framerate -
    4575           0 :                                           cpi->projected_frame_size);
    4576             : 
    4577           0 :       lc->bits_off_target += bits_off_for_this_layer;
    4578             : 
    4579             :       /* Clip buffer level to maximum buffer size for the layer */
    4580           0 :       if (lc->bits_off_target > lc->maximum_buffer_size) {
    4581           0 :         lc->bits_off_target = lc->maximum_buffer_size;
    4582             :       }
    4583             : 
    4584           0 :       lc->total_actual_bits += cpi->projected_frame_size;
    4585           0 :       lc->total_target_vs_actual += bits_off_for_this_layer;
    4586           0 :       lc->buffer_level = lc->bits_off_target;
    4587             :     }
    4588             :   }
    4589             : 
    4590             :   /* Update bits left to the kf and gf groups to account for overshoot
    4591             :    * or undershoot on these frames
    4592             :    */
    4593           0 :   if (cm->frame_type == KEY_FRAME) {
    4594           0 :     cpi->twopass.kf_group_bits +=
    4595           0 :         cpi->this_frame_target - cpi->projected_frame_size;
    4596             : 
    4597           0 :     if (cpi->twopass.kf_group_bits < 0) cpi->twopass.kf_group_bits = 0;
    4598           0 :   } else if (cm->refresh_golden_frame || cm->refresh_alt_ref_frame) {
    4599           0 :     cpi->twopass.gf_group_bits +=
    4600           0 :         cpi->this_frame_target - cpi->projected_frame_size;
    4601             : 
    4602           0 :     if (cpi->twopass.gf_group_bits < 0) cpi->twopass.gf_group_bits = 0;
    4603             :   }
    4604             : 
    4605           0 :   if (cm->frame_type != KEY_FRAME) {
    4606           0 :     if (cpi->common.refresh_alt_ref_frame) {
    4607           0 :       cpi->last_skip_false_probs[2] = cpi->prob_skip_false;
    4608           0 :       cpi->last_skip_probs_q[2] = cm->base_qindex;
    4609           0 :     } else if (cpi->common.refresh_golden_frame) {
    4610           0 :       cpi->last_skip_false_probs[1] = cpi->prob_skip_false;
    4611           0 :       cpi->last_skip_probs_q[1] = cm->base_qindex;
    4612             :     } else {
    4613           0 :       cpi->last_skip_false_probs[0] = cpi->prob_skip_false;
    4614           0 :       cpi->last_skip_probs_q[0] = cm->base_qindex;
    4615             : 
    4616             :       /* update the baseline */
    4617           0 :       cpi->base_skip_false_prob[cm->base_qindex] = cpi->prob_skip_false;
    4618             :     }
    4619             :   }
    4620             : 
    4621             : #if 0 && CONFIG_INTERNAL_STATS
    4622             :     {
    4623             :         FILE *f = fopen("tmp.stt", "a");
    4624             : 
    4625             :         vpx_clear_system_state();
    4626             : 
    4627             :         if (cpi->twopass.total_left_stats.coded_error != 0.0)
    4628             :             fprintf(f, "%10d %10d %10d %10d %10d %10"PRId64" %10"PRId64
    4629             :                        "%10"PRId64" %10d %6d %6d %6d %6d %5d %5d %5d %8d "
    4630             :                        "%8.2lf %"PRId64" %10.3lf %10"PRId64" %8d\n",
    4631             :                        cpi->common.current_video_frame, cpi->this_frame_target,
    4632             :                        cpi->projected_frame_size,
    4633             :                        (cpi->projected_frame_size - cpi->this_frame_target),
    4634             :                        cpi->total_target_vs_actual,
    4635             :                        cpi->buffer_level,
    4636             :                        (cpi->oxcf.starting_buffer_level-cpi->bits_off_target),
    4637             :                        cpi->total_actual_bits, cm->base_qindex,
    4638             :                        cpi->active_best_quality, cpi->active_worst_quality,
    4639             :                        cpi->ni_av_qi, cpi->cq_target_quality,
    4640             :                        cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
    4641             :                        cm->frame_type, cpi->gfu_boost,
    4642             :                        cpi->twopass.est_max_qcorrection_factor,
    4643             :                        cpi->twopass.bits_left,
    4644             :                        cpi->twopass.total_left_stats.coded_error,
    4645             :                        (double)cpi->twopass.bits_left /
    4646             :                            cpi->twopass.total_left_stats.coded_error,
    4647             :                        cpi->tot_recode_hits);
    4648             :         else
    4649             :             fprintf(f, "%10d %10d %10d %10d %10d %10"PRId64" %10"PRId64
    4650             :                        "%10"PRId64" %10d %6d %6d %6d %6d %5d %5d %5d %8d "
    4651             :                        "%8.2lf %"PRId64" %10.3lf %8d\n",
    4652             :                        cpi->common.current_video_frame, cpi->this_frame_target,
    4653             :                        cpi->projected_frame_size,
    4654             :                        (cpi->projected_frame_size - cpi->this_frame_target),
    4655             :                        cpi->total_target_vs_actual,
    4656             :                        cpi->buffer_level,
    4657             :                        (cpi->oxcf.starting_buffer_level-cpi->bits_off_target),
    4658             :                        cpi->total_actual_bits, cm->base_qindex,
    4659             :                        cpi->active_best_quality, cpi->active_worst_quality,
    4660             :                        cpi->ni_av_qi, cpi->cq_target_quality,
    4661             :                        cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
    4662             :                        cm->frame_type, cpi->gfu_boost,
    4663             :                        cpi->twopass.est_max_qcorrection_factor,
    4664             :                        cpi->twopass.bits_left,
    4665             :                        cpi->twopass.total_left_stats.coded_error,
    4666             :                        cpi->tot_recode_hits);
    4667             : 
    4668             :         fclose(f);
    4669             : 
    4670             :         {
    4671             :             FILE *fmodes = fopen("Modes.stt", "a");
    4672             : 
    4673             :             fprintf(fmodes, "%6d:%1d:%1d:%1d ",
    4674             :                         cpi->common.current_video_frame,
    4675             :                         cm->frame_type, cm->refresh_golden_frame,
    4676             :                         cm->refresh_alt_ref_frame);
    4677             : 
    4678             :             fprintf(fmodes, "\n");
    4679             : 
    4680             :             fclose(fmodes);
    4681             :         }
    4682             :     }
    4683             : 
    4684             : #endif
    4685             : 
    4686           0 :   if (cm->refresh_golden_frame == 1) {
    4687           0 :     cm->frame_flags = cm->frame_flags | FRAMEFLAGS_GOLDEN;
    4688             :   } else {
    4689           0 :     cm->frame_flags = cm->frame_flags & ~FRAMEFLAGS_GOLDEN;
    4690             :   }
    4691             : 
    4692           0 :   if (cm->refresh_alt_ref_frame == 1) {
    4693           0 :     cm->frame_flags = cm->frame_flags | FRAMEFLAGS_ALTREF;
    4694             :   } else {
    4695           0 :     cm->frame_flags = cm->frame_flags & ~FRAMEFLAGS_ALTREF;
    4696             :   }
    4697             : 
    4698           0 :   if (cm->refresh_last_frame & cm->refresh_golden_frame) { /* both refreshed */
    4699           0 :     cpi->gold_is_last = 1;
    4700           0 :   } else if (cm->refresh_last_frame ^ cm->refresh_golden_frame) {
    4701             :     /* 1 refreshed but not the other */
    4702           0 :     cpi->gold_is_last = 0;
    4703             :   }
    4704             : 
    4705           0 :   if (cm->refresh_last_frame & cm->refresh_alt_ref_frame) { /* both refreshed */
    4706           0 :     cpi->alt_is_last = 1;
    4707           0 :   } else if (cm->refresh_last_frame ^ cm->refresh_alt_ref_frame) {
    4708             :     /* 1 refreshed but not the other */
    4709           0 :     cpi->alt_is_last = 0;
    4710             :   }
    4711             : 
    4712           0 :   if (cm->refresh_alt_ref_frame &
    4713           0 :       cm->refresh_golden_frame) { /* both refreshed */
    4714           0 :     cpi->gold_is_alt = 1;
    4715           0 :   } else if (cm->refresh_alt_ref_frame ^ cm->refresh_golden_frame) {
    4716             :     /* 1 refreshed but not the other */
    4717           0 :     cpi->gold_is_alt = 0;
    4718             :   }
    4719             : 
    4720           0 :   cpi->ref_frame_flags = VP8_ALTR_FRAME | VP8_GOLD_FRAME | VP8_LAST_FRAME;
    4721             : 
    4722           0 :   if (cpi->gold_is_last) cpi->ref_frame_flags &= ~VP8_GOLD_FRAME;
    4723             : 
    4724           0 :   if (cpi->alt_is_last) cpi->ref_frame_flags &= ~VP8_ALTR_FRAME;
    4725             : 
    4726           0 :   if (cpi->gold_is_alt) cpi->ref_frame_flags &= ~VP8_ALTR_FRAME;
    4727             : 
    4728           0 :   if (!cpi->oxcf.error_resilient_mode) {
    4729           0 :     if (cpi->oxcf.play_alternate && cm->refresh_alt_ref_frame &&
    4730           0 :         (cm->frame_type != KEY_FRAME)) {
    4731             :       /* Update the alternate reference frame stats as appropriate. */
    4732           0 :       update_alt_ref_frame_stats(cpi);
    4733             :     } else {
    4734             :       /* Update the Golden frame stats as appropriate. */
    4735           0 :       update_golden_frame_stats(cpi);
    4736             :     }
    4737             :   }
    4738             : 
    4739           0 :   if (cm->frame_type == KEY_FRAME) {
    4740             :     /* Tell the caller that the frame was coded as a key frame */
    4741           0 :     *frame_flags = cm->frame_flags | FRAMEFLAGS_KEY;
    4742             : 
    4743             :     /* As this frame is a key frame  the next defaults to an inter frame. */
    4744           0 :     cm->frame_type = INTER_FRAME;
    4745             : 
    4746           0 :     cpi->last_frame_percent_intra = 100;
    4747             :   } else {
    4748           0 :     *frame_flags = cm->frame_flags & ~FRAMEFLAGS_KEY;
    4749             : 
    4750           0 :     cpi->last_frame_percent_intra = cpi->this_frame_percent_intra;
    4751             :   }
    4752             : 
    4753             :   /* Clear the one shot update flags for segmentation map and mode/ref
    4754             :    * loop filter deltas.
    4755             :    */
    4756           0 :   cpi->mb.e_mbd.update_mb_segmentation_map = 0;
    4757           0 :   cpi->mb.e_mbd.update_mb_segmentation_data = 0;
    4758           0 :   cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
    4759             : 
    4760             :   /* Dont increment frame counters if this was an altref buffer update
    4761             :    * not a real frame
    4762             :    */
    4763           0 :   if (cm->show_frame) {
    4764           0 :     cm->current_video_frame++;
    4765           0 :     cpi->frames_since_key++;
    4766           0 :     cpi->temporal_pattern_counter++;
    4767             :   }
    4768             : 
    4769             : /* reset to normal state now that we are done. */
    4770             : 
    4771             : #if 0
    4772             :     {
    4773             :         char filename[512];
    4774             :         FILE *recon_file;
    4775             :         sprintf(filename, "enc%04d.yuv", (int) cm->current_video_frame);
    4776             :         recon_file = fopen(filename, "wb");
    4777             :         fwrite(cm->yv12_fb[cm->lst_fb_idx].buffer_alloc,
    4778             :                cm->yv12_fb[cm->lst_fb_idx].frame_size, 1, recon_file);
    4779             :         fclose(recon_file);
    4780             :     }
    4781             : #endif
    4782             : 
    4783             :   /* DEBUG */
    4784             :   /* vp8_write_yuv_frame("encoder_recon.yuv", cm->frame_to_show); */
    4785             : }
    4786             : #if !CONFIG_REALTIME_ONLY
    4787           0 : static void Pass2Encode(VP8_COMP *cpi, size_t *size, unsigned char *dest,
    4788             :                         unsigned char *dest_end, unsigned int *frame_flags) {
    4789           0 :   if (!cpi->common.refresh_alt_ref_frame) vp8_second_pass(cpi);
    4790             : 
    4791           0 :   encode_frame_to_data_rate(cpi, size, dest, dest_end, frame_flags);
    4792           0 :   cpi->twopass.bits_left -= 8 * (int)(*size);
    4793             : 
    4794           0 :   if (!cpi->common.refresh_alt_ref_frame) {
    4795           0 :     double two_pass_min_rate =
    4796           0 :         (double)(cpi->oxcf.target_bandwidth *
    4797           0 :                  cpi->oxcf.two_pass_vbrmin_section / 100);
    4798           0 :     cpi->twopass.bits_left += (int64_t)(two_pass_min_rate / cpi->framerate);
    4799             :   }
    4800           0 : }
    4801             : #endif
    4802             : 
    4803           0 : int vp8_receive_raw_frame(VP8_COMP *cpi, unsigned int frame_flags,
    4804             :                           YV12_BUFFER_CONFIG *sd, int64_t time_stamp,
    4805             :                           int64_t end_time) {
    4806             :   struct vpx_usec_timer timer;
    4807           0 :   int res = 0;
    4808             : 
    4809           0 :   vpx_usec_timer_start(&timer);
    4810             : 
    4811             :   /* Reinit the lookahead buffer if the frame size changes */
    4812           0 :   if (sd->y_width != cpi->oxcf.Width || sd->y_height != cpi->oxcf.Height) {
    4813           0 :     assert(cpi->oxcf.lag_in_frames < 2);
    4814           0 :     dealloc_raw_frame_buffers(cpi);
    4815           0 :     alloc_raw_frame_buffers(cpi);
    4816             :   }
    4817             : 
    4818           0 :   if (vp8_lookahead_push(cpi->lookahead, sd, time_stamp, end_time, frame_flags,
    4819           0 :                          cpi->active_map_enabled ? cpi->active_map : NULL)) {
    4820           0 :     res = -1;
    4821             :   }
    4822           0 :   vpx_usec_timer_mark(&timer);
    4823           0 :   cpi->time_receive_data += vpx_usec_timer_elapsed(&timer);
    4824             : 
    4825           0 :   return res;
    4826             : }
    4827             : 
    4828           0 : static int frame_is_reference(const VP8_COMP *cpi) {
    4829           0 :   const VP8_COMMON *cm = &cpi->common;
    4830           0 :   const MACROBLOCKD *xd = &cpi->mb.e_mbd;
    4831             : 
    4832           0 :   return cm->frame_type == KEY_FRAME || cm->refresh_last_frame ||
    4833           0 :          cm->refresh_golden_frame || cm->refresh_alt_ref_frame ||
    4834           0 :          cm->copy_buffer_to_gf || cm->copy_buffer_to_arf ||
    4835           0 :          cm->refresh_entropy_probs || xd->mode_ref_lf_delta_update ||
    4836           0 :          xd->update_mb_segmentation_map || xd->update_mb_segmentation_data;
    4837             : }
    4838             : 
    4839           0 : int vp8_get_compressed_data(VP8_COMP *cpi, unsigned int *frame_flags,
    4840             :                             size_t *size, unsigned char *dest,
    4841             :                             unsigned char *dest_end, int64_t *time_stamp,
    4842             :                             int64_t *time_end, int flush) {
    4843             :   VP8_COMMON *cm;
    4844             :   struct vpx_usec_timer tsctimer;
    4845             :   struct vpx_usec_timer ticktimer;
    4846             :   struct vpx_usec_timer cmptimer;
    4847           0 :   YV12_BUFFER_CONFIG *force_src_buffer = NULL;
    4848             : 
    4849           0 :   if (!cpi) return -1;
    4850             : 
    4851           0 :   cm = &cpi->common;
    4852             : 
    4853           0 :   if (setjmp(cpi->common.error.jmp)) {
    4854           0 :     cpi->common.error.setjmp = 0;
    4855           0 :     vpx_clear_system_state();
    4856           0 :     return VPX_CODEC_CORRUPT_FRAME;
    4857             :   }
    4858             : 
    4859           0 :   cpi->common.error.setjmp = 1;
    4860             : 
    4861           0 :   vpx_usec_timer_start(&cmptimer);
    4862             : 
    4863           0 :   cpi->source = NULL;
    4864             : 
    4865             : #if !CONFIG_REALTIME_ONLY
    4866             :   /* Should we code an alternate reference frame */
    4867           0 :   if (cpi->oxcf.error_resilient_mode == 0 && cpi->oxcf.play_alternate &&
    4868           0 :       cpi->source_alt_ref_pending) {
    4869           0 :     if ((cpi->source = vp8_lookahead_peek(
    4870           0 :              cpi->lookahead, cpi->frames_till_gf_update_due, PEEK_FORWARD))) {
    4871           0 :       cpi->alt_ref_source = cpi->source;
    4872           0 :       if (cpi->oxcf.arnr_max_frames > 0) {
    4873           0 :         vp8_temporal_filter_prepare_c(cpi, cpi->frames_till_gf_update_due);
    4874           0 :         force_src_buffer = &cpi->alt_ref_buffer;
    4875             :       }
    4876           0 :       cpi->frames_till_alt_ref_frame = cpi->frames_till_gf_update_due;
    4877           0 :       cm->refresh_alt_ref_frame = 1;
    4878           0 :       cm->refresh_golden_frame = 0;
    4879           0 :       cm->refresh_last_frame = 0;
    4880           0 :       cm->show_frame = 0;
    4881             :       /* Clear Pending alt Ref flag. */
    4882           0 :       cpi->source_alt_ref_pending = 0;
    4883           0 :       cpi->is_src_frame_alt_ref = 0;
    4884             :     }
    4885             :   }
    4886             : #endif
    4887             : 
    4888           0 :   if (!cpi->source) {
    4889             :     /* Read last frame source if we are encoding first pass. */
    4890           0 :     if (cpi->pass == 1 && cm->current_video_frame > 0) {
    4891           0 :       if ((cpi->last_source =
    4892           0 :                vp8_lookahead_peek(cpi->lookahead, 1, PEEK_BACKWARD)) == NULL) {
    4893           0 :         return -1;
    4894             :       }
    4895             :     }
    4896             : 
    4897           0 :     if ((cpi->source = vp8_lookahead_pop(cpi->lookahead, flush))) {
    4898           0 :       cm->show_frame = 1;
    4899             : 
    4900           0 :       cpi->is_src_frame_alt_ref =
    4901           0 :           cpi->alt_ref_source && (cpi->source == cpi->alt_ref_source);
    4902             : 
    4903           0 :       if (cpi->is_src_frame_alt_ref) cpi->alt_ref_source = NULL;
    4904             :     }
    4905             :   }
    4906             : 
    4907           0 :   if (cpi->source) {
    4908           0 :     cpi->Source = force_src_buffer ? force_src_buffer : &cpi->source->img;
    4909           0 :     cpi->un_scaled_source = cpi->Source;
    4910           0 :     *time_stamp = cpi->source->ts_start;
    4911           0 :     *time_end = cpi->source->ts_end;
    4912           0 :     *frame_flags = cpi->source->flags;
    4913             : 
    4914           0 :     if (cpi->pass == 1 && cm->current_video_frame > 0) {
    4915           0 :       cpi->last_frame_unscaled_source = &cpi->last_source->img;
    4916             :     }
    4917             :   } else {
    4918           0 :     *size = 0;
    4919             : #if !CONFIG_REALTIME_ONLY
    4920             : 
    4921           0 :     if (flush && cpi->pass == 1 && !cpi->twopass.first_pass_done) {
    4922           0 :       vp8_end_first_pass(cpi); /* get last stats packet */
    4923           0 :       cpi->twopass.first_pass_done = 1;
    4924             :     }
    4925             : 
    4926             : #endif
    4927             : 
    4928           0 :     return -1;
    4929             :   }
    4930             : 
    4931           0 :   if (cpi->source->ts_start < cpi->first_time_stamp_ever) {
    4932           0 :     cpi->first_time_stamp_ever = cpi->source->ts_start;
    4933           0 :     cpi->last_end_time_stamp_seen = cpi->source->ts_start;
    4934             :   }
    4935             : 
    4936             :   /* adjust frame rates based on timestamps given */
    4937           0 :   if (cm->show_frame) {
    4938             :     int64_t this_duration;
    4939           0 :     int step = 0;
    4940             : 
    4941           0 :     if (cpi->source->ts_start == cpi->first_time_stamp_ever) {
    4942           0 :       this_duration = cpi->source->ts_end - cpi->source->ts_start;
    4943           0 :       step = 1;
    4944             :     } else {
    4945             :       int64_t last_duration;
    4946             : 
    4947           0 :       this_duration = cpi->source->ts_end - cpi->last_end_time_stamp_seen;
    4948           0 :       last_duration = cpi->last_end_time_stamp_seen - cpi->last_time_stamp_seen;
    4949             :       /* do a step update if the duration changes by 10% */
    4950           0 :       if (last_duration) {
    4951           0 :         step = (int)(((this_duration - last_duration) * 10 / last_duration));
    4952             :       }
    4953             :     }
    4954             : 
    4955           0 :     if (this_duration) {
    4956           0 :       if (step) {
    4957           0 :         cpi->ref_framerate = 10000000.0 / this_duration;
    4958             :       } else {
    4959             :         double avg_duration, interval;
    4960             : 
    4961             :         /* Average this frame's rate into the last second's average
    4962             :          * frame rate. If we haven't seen 1 second yet, then average
    4963             :          * over the whole interval seen.
    4964             :          */
    4965           0 :         interval = (double)(cpi->source->ts_end - cpi->first_time_stamp_ever);
    4966           0 :         if (interval > 10000000.0) interval = 10000000;
    4967             : 
    4968           0 :         avg_duration = 10000000.0 / cpi->ref_framerate;
    4969           0 :         avg_duration *= (interval - avg_duration + this_duration);
    4970           0 :         avg_duration /= interval;
    4971             : 
    4972           0 :         cpi->ref_framerate = 10000000.0 / avg_duration;
    4973             :       }
    4974             : #if CONFIG_MULTI_RES_ENCODING
    4975           0 :       if (cpi->oxcf.mr_total_resolutions > 1) {
    4976           0 :         LOWER_RES_FRAME_INFO *low_res_frame_info =
    4977             :             (LOWER_RES_FRAME_INFO *)cpi->oxcf.mr_low_res_mode_info;
    4978             :         // Frame rate should be the same for all spatial layers in
    4979             :         // multi-res-encoding (simulcast), so we constrain the frame for
    4980             :         // higher layers to be that of lowest resolution. This is needed
    4981             :         // as he application may decide to skip encoding a high layer and
    4982             :         // then start again, in which case a big jump in time-stamps will
    4983             :         // be received for that high layer, which will yield an incorrect
    4984             :         // frame rate (from time-stamp adjustment in above calculation).
    4985           0 :         if (cpi->oxcf.mr_encoder_id) {
    4986           0 :           cpi->ref_framerate = low_res_frame_info->low_res_framerate;
    4987             :         } else {
    4988             :           // Keep track of frame rate for lowest resolution.
    4989           0 :           low_res_frame_info->low_res_framerate = cpi->ref_framerate;
    4990             :         }
    4991             :       }
    4992             : #endif
    4993           0 :       if (cpi->oxcf.number_of_layers > 1) {
    4994             :         unsigned int i;
    4995             : 
    4996             :         /* Update frame rates for each layer */
    4997           0 :         assert(cpi->oxcf.number_of_layers <= VPX_TS_MAX_LAYERS);
    4998           0 :         for (i = 0; i < cpi->oxcf.number_of_layers && i < VPX_TS_MAX_LAYERS;
    4999           0 :              ++i) {
    5000           0 :           LAYER_CONTEXT *lc = &cpi->layer_context[i];
    5001           0 :           lc->framerate = cpi->ref_framerate / cpi->oxcf.rate_decimator[i];
    5002             :         }
    5003             :       } else {
    5004           0 :         vp8_new_framerate(cpi, cpi->ref_framerate);
    5005             :       }
    5006             :     }
    5007             : 
    5008           0 :     cpi->last_time_stamp_seen = cpi->source->ts_start;
    5009           0 :     cpi->last_end_time_stamp_seen = cpi->source->ts_end;
    5010             :   }
    5011             : 
    5012           0 :   if (cpi->oxcf.number_of_layers > 1) {
    5013             :     int layer;
    5014             : 
    5015           0 :     update_layer_contexts(cpi);
    5016             : 
    5017             :     /* Restore layer specific context & set frame rate */
    5018           0 :     if (cpi->temporal_layer_id >= 0) {
    5019           0 :       layer = cpi->temporal_layer_id;
    5020             :     } else {
    5021           0 :       layer =
    5022             :           cpi->oxcf
    5023           0 :               .layer_id[cpi->temporal_pattern_counter % cpi->oxcf.periodicity];
    5024             :     }
    5025           0 :     restore_layer_context(cpi, layer);
    5026           0 :     vp8_new_framerate(cpi, cpi->layer_context[layer].framerate);
    5027             :   }
    5028             : 
    5029           0 :   if (cpi->compressor_speed == 2) {
    5030           0 :     vpx_usec_timer_start(&tsctimer);
    5031           0 :     vpx_usec_timer_start(&ticktimer);
    5032             :   }
    5033             : 
    5034           0 :   cpi->lf_zeromv_pct = (cpi->zeromv_count * 100) / cm->MBs;
    5035             : 
    5036             : #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
    5037             :   {
    5038             :     int i;
    5039             :     const int num_part = (1 << cm->multi_token_partition);
    5040             :     /* the available bytes in dest */
    5041             :     const unsigned long dest_size = dest_end - dest;
    5042             :     const int tok_part_buff_size = (dest_size * 9) / (10 * num_part);
    5043             : 
    5044             :     unsigned char *dp = dest;
    5045             : 
    5046             :     cpi->partition_d[0] = dp;
    5047             :     dp += dest_size / 10; /* reserve 1/10 for control partition */
    5048             :     cpi->partition_d_end[0] = dp;
    5049             : 
    5050             :     for (i = 0; i < num_part; ++i) {
    5051             :       cpi->partition_d[i + 1] = dp;
    5052             :       dp += tok_part_buff_size;
    5053             :       cpi->partition_d_end[i + 1] = dp;
    5054             :     }
    5055             :   }
    5056             : #endif
    5057             : 
    5058             :   /* start with a 0 size frame */
    5059           0 :   *size = 0;
    5060             : 
    5061             :   /* Clear down mmx registers */
    5062           0 :   vpx_clear_system_state();
    5063             : 
    5064           0 :   cm->frame_type = INTER_FRAME;
    5065           0 :   cm->frame_flags = *frame_flags;
    5066             : 
    5067             : #if 0
    5068             : 
    5069             :     if (cm->refresh_alt_ref_frame)
    5070             :     {
    5071             :         cm->refresh_golden_frame = 0;
    5072             :         cm->refresh_last_frame = 0;
    5073             :     }
    5074             :     else
    5075             :     {
    5076             :         cm->refresh_golden_frame = 0;
    5077             :         cm->refresh_last_frame = 1;
    5078             :     }
    5079             : 
    5080             : #endif
    5081             :   /* find a free buffer for the new frame */
    5082             :   {
    5083           0 :     int i = 0;
    5084           0 :     for (; i < NUM_YV12_BUFFERS; ++i) {
    5085           0 :       if (!cm->yv12_fb[i].flags) {
    5086           0 :         cm->new_fb_idx = i;
    5087           0 :         break;
    5088             :       }
    5089             :     }
    5090             : 
    5091           0 :     assert(i < NUM_YV12_BUFFERS);
    5092             :   }
    5093           0 :   switch (cpi->pass) {
    5094             : #if !CONFIG_REALTIME_ONLY
    5095           0 :     case 1: Pass1Encode(cpi, size, dest, frame_flags); break;
    5096           0 :     case 2: Pass2Encode(cpi, size, dest, dest_end, frame_flags); break;
    5097             : #endif  // !CONFIG_REALTIME_ONLY
    5098             :     default:
    5099           0 :       encode_frame_to_data_rate(cpi, size, dest, dest_end, frame_flags);
    5100           0 :       break;
    5101             :   }
    5102             : 
    5103           0 :   if (cpi->compressor_speed == 2) {
    5104             :     unsigned int duration, duration2;
    5105           0 :     vpx_usec_timer_mark(&tsctimer);
    5106           0 :     vpx_usec_timer_mark(&ticktimer);
    5107             : 
    5108           0 :     duration = (int)(vpx_usec_timer_elapsed(&ticktimer));
    5109           0 :     duration2 = (unsigned int)((double)duration / 2);
    5110             : 
    5111           0 :     if (cm->frame_type != KEY_FRAME) {
    5112           0 :       if (cpi->avg_encode_time == 0) {
    5113           0 :         cpi->avg_encode_time = duration;
    5114             :       } else {
    5115           0 :         cpi->avg_encode_time = (7 * cpi->avg_encode_time + duration) >> 3;
    5116             :       }
    5117             :     }
    5118             : 
    5119           0 :     if (duration2) {
    5120             :       {
    5121           0 :         if (cpi->avg_pick_mode_time == 0) {
    5122           0 :           cpi->avg_pick_mode_time = duration2;
    5123             :         } else {
    5124           0 :           cpi->avg_pick_mode_time =
    5125           0 :               (7 * cpi->avg_pick_mode_time + duration2) >> 3;
    5126             :         }
    5127             :       }
    5128             :     }
    5129             :   }
    5130             : 
    5131           0 :   if (cm->refresh_entropy_probs == 0) {
    5132           0 :     memcpy(&cm->fc, &cm->lfc, sizeof(cm->fc));
    5133             :   }
    5134             : 
    5135             :   /* Save the contexts separately for alt ref, gold and last. */
    5136             :   /* (TODO jbb -> Optimize this with pointers to avoid extra copies. ) */
    5137           0 :   if (cm->refresh_alt_ref_frame) memcpy(&cpi->lfc_a, &cm->fc, sizeof(cm->fc));
    5138             : 
    5139           0 :   if (cm->refresh_golden_frame) memcpy(&cpi->lfc_g, &cm->fc, sizeof(cm->fc));
    5140             : 
    5141           0 :   if (cm->refresh_last_frame) memcpy(&cpi->lfc_n, &cm->fc, sizeof(cm->fc));
    5142             : 
    5143             :   /* if its a dropped frame honor the requests on subsequent frames */
    5144           0 :   if (*size > 0) {
    5145           0 :     cpi->droppable = !frame_is_reference(cpi);
    5146             : 
    5147             :     /* return to normal state */
    5148           0 :     cm->refresh_entropy_probs = 1;
    5149           0 :     cm->refresh_alt_ref_frame = 0;
    5150           0 :     cm->refresh_golden_frame = 0;
    5151           0 :     cm->refresh_last_frame = 1;
    5152           0 :     cm->frame_type = INTER_FRAME;
    5153             :   }
    5154             : 
    5155             :   /* Save layer specific state */
    5156           0 :   if (cpi->oxcf.number_of_layers > 1) save_layer_context(cpi);
    5157             : 
    5158           0 :   vpx_usec_timer_mark(&cmptimer);
    5159           0 :   cpi->time_compress_data += vpx_usec_timer_elapsed(&cmptimer);
    5160             : 
    5161           0 :   if (cpi->b_calculate_psnr && cpi->pass != 1 && cm->show_frame) {
    5162           0 :     generate_psnr_packet(cpi);
    5163             :   }
    5164             : 
    5165             : #if CONFIG_INTERNAL_STATS
    5166             : 
    5167             :   if (cpi->pass != 1) {
    5168             :     cpi->bytes += *size;
    5169             : 
    5170             :     if (cm->show_frame) {
    5171             :       cpi->common.show_frame_mi = cpi->common.mi;
    5172             :       cpi->count++;
    5173             : 
    5174             :       if (cpi->b_calculate_psnr) {
    5175             :         uint64_t ye, ue, ve;
    5176             :         double frame_psnr;
    5177             :         YV12_BUFFER_CONFIG *orig = cpi->Source;
    5178             :         YV12_BUFFER_CONFIG *recon = cpi->common.frame_to_show;
    5179             :         unsigned int y_width = cpi->common.Width;
    5180             :         unsigned int y_height = cpi->common.Height;
    5181             :         unsigned int uv_width = (y_width + 1) / 2;
    5182             :         unsigned int uv_height = (y_height + 1) / 2;
    5183             :         int y_samples = y_height * y_width;
    5184             :         int uv_samples = uv_height * uv_width;
    5185             :         int t_samples = y_samples + 2 * uv_samples;
    5186             :         double sq_error;
    5187             : 
    5188             :         ye = calc_plane_error(orig->y_buffer, orig->y_stride, recon->y_buffer,
    5189             :                               recon->y_stride, y_width, y_height);
    5190             : 
    5191             :         ue = calc_plane_error(orig->u_buffer, orig->uv_stride, recon->u_buffer,
    5192             :                               recon->uv_stride, uv_width, uv_height);
    5193             : 
    5194             :         ve = calc_plane_error(orig->v_buffer, orig->uv_stride, recon->v_buffer,
    5195             :                               recon->uv_stride, uv_width, uv_height);
    5196             : 
    5197             :         sq_error = (double)(ye + ue + ve);
    5198             : 
    5199             :         frame_psnr = vpx_sse_to_psnr(t_samples, 255.0, sq_error);
    5200             : 
    5201             :         cpi->total_y += vpx_sse_to_psnr(y_samples, 255.0, (double)ye);
    5202             :         cpi->total_u += vpx_sse_to_psnr(uv_samples, 255.0, (double)ue);
    5203             :         cpi->total_v += vpx_sse_to_psnr(uv_samples, 255.0, (double)ve);
    5204             :         cpi->total_sq_error += sq_error;
    5205             :         cpi->total += frame_psnr;
    5206             : #if CONFIG_POSTPROC
    5207             :         {
    5208             :           YV12_BUFFER_CONFIG *pp = &cm->post_proc_buffer;
    5209             :           double sq_error2;
    5210             :           double frame_psnr2, frame_ssim2 = 0;
    5211             :           double weight = 0;
    5212             : 
    5213             :           vp8_deblock(cm, cm->frame_to_show, &cm->post_proc_buffer,
    5214             :                       cm->filter_level * 10 / 6, 1, 0);
    5215             :           vpx_clear_system_state();
    5216             : 
    5217             :           ye = calc_plane_error(orig->y_buffer, orig->y_stride, pp->y_buffer,
    5218             :                                 pp->y_stride, y_width, y_height);
    5219             : 
    5220             :           ue = calc_plane_error(orig->u_buffer, orig->uv_stride, pp->u_buffer,
    5221             :                                 pp->uv_stride, uv_width, uv_height);
    5222             : 
    5223             :           ve = calc_plane_error(orig->v_buffer, orig->uv_stride, pp->v_buffer,
    5224             :                                 pp->uv_stride, uv_width, uv_height);
    5225             : 
    5226             :           sq_error2 = (double)(ye + ue + ve);
    5227             : 
    5228             :           frame_psnr2 = vpx_sse_to_psnr(t_samples, 255.0, sq_error2);
    5229             : 
    5230             :           cpi->totalp_y += vpx_sse_to_psnr(y_samples, 255.0, (double)ye);
    5231             :           cpi->totalp_u += vpx_sse_to_psnr(uv_samples, 255.0, (double)ue);
    5232             :           cpi->totalp_v += vpx_sse_to_psnr(uv_samples, 255.0, (double)ve);
    5233             :           cpi->total_sq_error2 += sq_error2;
    5234             :           cpi->totalp += frame_psnr2;
    5235             : 
    5236             :           frame_ssim2 =
    5237             :               vpx_calc_ssim(cpi->Source, &cm->post_proc_buffer, &weight);
    5238             : 
    5239             :           cpi->summed_quality += frame_ssim2 * weight;
    5240             :           cpi->summed_weights += weight;
    5241             : 
    5242             :           if (cpi->oxcf.number_of_layers > 1) {
    5243             :             unsigned int i;
    5244             : 
    5245             :             for (i = cpi->current_layer; i < cpi->oxcf.number_of_layers; ++i) {
    5246             :               cpi->frames_in_layer[i]++;
    5247             : 
    5248             :               cpi->bytes_in_layer[i] += *size;
    5249             :               cpi->sum_psnr[i] += frame_psnr;
    5250             :               cpi->sum_psnr_p[i] += frame_psnr2;
    5251             :               cpi->total_error2[i] += sq_error;
    5252             :               cpi->total_error2_p[i] += sq_error2;
    5253             :               cpi->sum_ssim[i] += frame_ssim2 * weight;
    5254             :               cpi->sum_weights[i] += weight;
    5255             :             }
    5256             :           }
    5257             :         }
    5258             : #endif
    5259             :       }
    5260             :     }
    5261             :   }
    5262             : 
    5263             : #if 0
    5264             : 
    5265             :     if (cpi->common.frame_type != 0 && cpi->common.base_qindex == cpi->oxcf.worst_allowed_q)
    5266             :     {
    5267             :         skiptruecount += cpi->skip_true_count;
    5268             :         skipfalsecount += cpi->skip_false_count;
    5269             :     }
    5270             : 
    5271             : #endif
    5272             : #if 0
    5273             : 
    5274             :     if (cpi->pass != 1)
    5275             :     {
    5276             :         FILE *f = fopen("skip.stt", "a");
    5277             :         fprintf(f, "frame:%4d flags:%4x Q:%4d P:%4d Size:%5d\n", cpi->common.current_video_frame, *frame_flags, cpi->common.base_qindex, cpi->prob_skip_false, *size);
    5278             : 
    5279             :         if (cpi->is_src_frame_alt_ref == 1)
    5280             :             fprintf(f, "skipcount: %4d framesize: %d\n", cpi->skip_true_count , *size);
    5281             : 
    5282             :         fclose(f);
    5283             :     }
    5284             : 
    5285             : #endif
    5286             : #endif
    5287             : 
    5288           0 :   cpi->common.error.setjmp = 0;
    5289             : 
    5290             : #if CONFIG_MULTITHREAD
    5291             :   /* wait for the lpf thread done */
    5292           0 :   if (cpi->b_multi_threaded && cpi->b_lpf_running) {
    5293           0 :     sem_wait(&cpi->h_event_end_lpf);
    5294           0 :     cpi->b_lpf_running = 0;
    5295             :   }
    5296             : #endif
    5297             : 
    5298           0 :   return 0;
    5299             : }
    5300             : 
    5301           0 : int vp8_get_preview_raw_frame(VP8_COMP *cpi, YV12_BUFFER_CONFIG *dest,
    5302             :                               vp8_ppflags_t *flags) {
    5303           0 :   if (cpi->common.refresh_alt_ref_frame) {
    5304           0 :     return -1;
    5305             :   } else {
    5306             :     int ret;
    5307             : 
    5308             : #if CONFIG_POSTPROC
    5309           0 :     cpi->common.show_frame_mi = cpi->common.mi;
    5310           0 :     ret = vp8_post_proc_frame(&cpi->common, dest, flags);
    5311             : #else
    5312             :     (void)flags;
    5313             : 
    5314             :     if (cpi->common.frame_to_show) {
    5315             :       *dest = *cpi->common.frame_to_show;
    5316             :       dest->y_width = cpi->common.Width;
    5317             :       dest->y_height = cpi->common.Height;
    5318             :       dest->uv_height = cpi->common.Height / 2;
    5319             :       ret = 0;
    5320             :     } else {
    5321             :       ret = -1;
    5322             :     }
    5323             : 
    5324             : #endif
    5325           0 :     vpx_clear_system_state();
    5326           0 :     return ret;
    5327             :   }
    5328             : }
    5329             : 
    5330           0 : int vp8_set_roimap(VP8_COMP *cpi, unsigned char *map, unsigned int rows,
    5331             :                    unsigned int cols, int delta_q[4], int delta_lf[4],
    5332             :                    unsigned int threshold[4]) {
    5333             :   signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
    5334             :   int internal_delta_q[MAX_MB_SEGMENTS];
    5335           0 :   const int range = 63;
    5336             :   int i;
    5337             : 
    5338             :   // This method is currently incompatible with the cyclic refresh method
    5339           0 :   if (cpi->cyclic_refresh_mode_enabled) return -1;
    5340             : 
    5341             :   // Check number of rows and columns match
    5342           0 :   if (cpi->common.mb_rows != (int)rows || cpi->common.mb_cols != (int)cols) {
    5343           0 :     return -1;
    5344             :   }
    5345             : 
    5346             :   // Range check the delta Q values and convert the external Q range values
    5347             :   // to internal ones.
    5348           0 :   if ((abs(delta_q[0]) > range) || (abs(delta_q[1]) > range) ||
    5349           0 :       (abs(delta_q[2]) > range) || (abs(delta_q[3]) > range)) {
    5350           0 :     return -1;
    5351             :   }
    5352             : 
    5353             :   // Range check the delta lf values
    5354           0 :   if ((abs(delta_lf[0]) > range) || (abs(delta_lf[1]) > range) ||
    5355           0 :       (abs(delta_lf[2]) > range) || (abs(delta_lf[3]) > range)) {
    5356           0 :     return -1;
    5357             :   }
    5358             : 
    5359           0 :   if (!map) {
    5360           0 :     disable_segmentation(cpi);
    5361           0 :     return 0;
    5362             :   }
    5363             : 
    5364             :   // Translate the external delta q values to internal values.
    5365           0 :   for (i = 0; i < MAX_MB_SEGMENTS; ++i) {
    5366           0 :     internal_delta_q[i] =
    5367           0 :         (delta_q[i] >= 0) ? q_trans[delta_q[i]] : -q_trans[-delta_q[i]];
    5368             :   }
    5369             : 
    5370             :   /* Set the segmentation Map */
    5371           0 :   set_segmentation_map(cpi, map);
    5372             : 
    5373             :   /* Activate segmentation. */
    5374           0 :   enable_segmentation(cpi);
    5375             : 
    5376             :   /* Set up the quant segment data */
    5377           0 :   feature_data[MB_LVL_ALT_Q][0] = internal_delta_q[0];
    5378           0 :   feature_data[MB_LVL_ALT_Q][1] = internal_delta_q[1];
    5379           0 :   feature_data[MB_LVL_ALT_Q][2] = internal_delta_q[2];
    5380           0 :   feature_data[MB_LVL_ALT_Q][3] = internal_delta_q[3];
    5381             : 
    5382             :   /* Set up the loop segment data s */
    5383           0 :   feature_data[MB_LVL_ALT_LF][0] = delta_lf[0];
    5384           0 :   feature_data[MB_LVL_ALT_LF][1] = delta_lf[1];
    5385           0 :   feature_data[MB_LVL_ALT_LF][2] = delta_lf[2];
    5386           0 :   feature_data[MB_LVL_ALT_LF][3] = delta_lf[3];
    5387             : 
    5388           0 :   cpi->segment_encode_breakout[0] = threshold[0];
    5389           0 :   cpi->segment_encode_breakout[1] = threshold[1];
    5390           0 :   cpi->segment_encode_breakout[2] = threshold[2];
    5391           0 :   cpi->segment_encode_breakout[3] = threshold[3];
    5392             : 
    5393             :   /* Initialise the feature data structure */
    5394           0 :   set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
    5395             : 
    5396           0 :   return 0;
    5397             : }
    5398             : 
    5399           0 : int vp8_set_active_map(VP8_COMP *cpi, unsigned char *map, unsigned int rows,
    5400             :                        unsigned int cols) {
    5401           0 :   if ((int)rows == cpi->common.mb_rows && (int)cols == cpi->common.mb_cols) {
    5402           0 :     if (map) {
    5403           0 :       memcpy(cpi->active_map, map, rows * cols);
    5404           0 :       cpi->active_map_enabled = 1;
    5405             :     } else {
    5406           0 :       cpi->active_map_enabled = 0;
    5407             :     }
    5408             : 
    5409           0 :     return 0;
    5410             :   } else {
    5411           0 :     return -1;
    5412             :   }
    5413             : }
    5414             : 
    5415           0 : int vp8_set_internal_size(VP8_COMP *cpi, VPX_SCALING horiz_mode,
    5416             :                           VPX_SCALING vert_mode) {
    5417           0 :   if (horiz_mode <= ONETWO) {
    5418           0 :     cpi->common.horiz_scale = horiz_mode;
    5419             :   } else {
    5420           0 :     return -1;
    5421             :   }
    5422             : 
    5423           0 :   if (vert_mode <= ONETWO) {
    5424           0 :     cpi->common.vert_scale = vert_mode;
    5425             :   } else {
    5426           0 :     return -1;
    5427             :   }
    5428             : 
    5429           0 :   return 0;
    5430             : }
    5431             : 
    5432           0 : int vp8_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest) {
    5433             :   int i, j;
    5434           0 :   int Total = 0;
    5435             : 
    5436           0 :   unsigned char *src = source->y_buffer;
    5437           0 :   unsigned char *dst = dest->y_buffer;
    5438             : 
    5439             :   /* Loop through the Y plane raw and reconstruction data summing
    5440             :    * (square differences)
    5441             :    */
    5442           0 :   for (i = 0; i < source->y_height; i += 16) {
    5443           0 :     for (j = 0; j < source->y_width; j += 16) {
    5444             :       unsigned int sse;
    5445           0 :       Total += vpx_mse16x16(src + j, source->y_stride, dst + j, dest->y_stride,
    5446             :                             &sse);
    5447             :     }
    5448             : 
    5449           0 :     src += 16 * source->y_stride;
    5450           0 :     dst += 16 * dest->y_stride;
    5451             :   }
    5452             : 
    5453           0 :   return Total;
    5454             : }
    5455             : 
    5456           0 : int vp8_get_quantizer(VP8_COMP *cpi) { return cpi->common.base_qindex; }

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