The Tor Browser: comparison media/libvpx/vp8/encoder/onyx

--1:000000000000
+:c0c7bbe96766
+/*
+*  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+*
+*  Use of this source code is governed by a BSD-style license
+*  that can be found in the LICENSE file in the root of the source
+*  tree. An additional intellectual property rights grant can be found
+*  in the file PATENTS.  All contributing project authors may
+*  be found in the AUTHORS file in the root of the source tree.
+*/
+#include "vpx_config.h"
+#include "./vpx_scale_rtcd.h"
+#include "vp8/common/onyxc_int.h"
+#include "vp8/common/blockd.h"
+#include "onyx_int.h"
+#include "vp8/common/systemdependent.h"
+#include "quantize.h"
+#include "vp8/common/alloccommon.h"
+#include "mcomp.h"
+#include "firstpass.h"
+#include "psnr.h"
+#include "vpx_scale/vpx_scale.h"
+#include "vp8/common/extend.h"
+#include "ratectrl.h"
+#include "vp8/common/quant_common.h"
+#include "segmentation.h"
+#if CONFIG_POSTPROC
+#include "vp8/common/postproc.h"
+#endif
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/swapyv12buffer.h"
+#include "vp8/common/threading.h"
+#include "vpx_ports/vpx_timer.h"
+#if ARCH_ARM
+#include "vpx_ports/arm.h"
+#endif
+#if CONFIG_MULTI_RES_ENCODING
+#include "mr_dissim.h"
+#endif
+#include "encodeframe.h"
+#include <math.h>
+#include <stdio.h>
+#include <limits.h>
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+extern int vp8_update_coef_context(VP8_COMP *cpi);
+extern void vp8_update_coef_probs(VP8_COMP *cpi);
+#endif
+extern void vp8cx_pick_filter_level_fast(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi);
+extern void vp8cx_set_alt_lf_level(VP8_COMP *cpi, int filt_val);
+extern void vp8cx_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi);
+extern void vp8_deblock_frame(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *post, int filt_lvl, int low_var_thresh, int flag);
+extern void print_parms(VP8_CONFIG *ocf, char *filenam);
+extern unsigned int vp8_get_processor_freq();
+extern void print_tree_update_probs();
+extern int vp8cx_create_encoder_threads(VP8_COMP *cpi);
+extern void vp8cx_remove_encoder_threads(VP8_COMP *cpi);
+int vp8_estimate_entropy_savings(VP8_COMP *cpi);
+int vp8_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest);
+extern void vp8_temporal_filter_prepare_c(VP8_COMP *cpi, int distance);
+static void set_default_lf_deltas(VP8_COMP *cpi);
+extern const int vp8_gf_interval_table[101];
+#if CONFIG_INTERNAL_STATS
+#include "math.h"
+extern double vp8_calc_ssim
+(
+YV12_BUFFER_CONFIG *source,
+YV12_BUFFER_CONFIG *dest,
+int lumamask,
+double *weight
+);
+extern double vp8_calc_ssimg
+(
+YV12_BUFFER_CONFIG *source,
+YV12_BUFFER_CONFIG *dest,
+double *ssim_y,
+double *ssim_u,
+double *ssim_v
+);
+#endif
+#ifdef OUTPUT_YUV_SRC
+FILE *yuv_file;
+#endif
+#if 0
+FILE *framepsnr;
+FILE *kf_list;
+FILE *keyfile;
+#endif
+#if 0
+extern int skip_true_count;
+extern int skip_false_count;
+#endif
+#ifdef VP8_ENTROPY_STATS
+extern int intra_mode_stats[10][10][10];
+#endif
+#ifdef SPEEDSTATS
+unsigned int frames_at_speed[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+unsigned int tot_pm = 0;
+unsigned int cnt_pm = 0;
+unsigned int tot_ef = 0;
+unsigned int cnt_ef = 0;
+#endif
+#ifdef MODE_STATS
+extern unsigned __int64 Sectionbits[50];
+extern int y_modes[5]  ;
+extern int uv_modes[4] ;
+extern int b_modes[10]  ;
+extern int inter_y_modes[10] ;
+extern int inter_uv_modes[4] ;
+extern unsigned int inter_b_modes[15];
+#endif
+extern const int vp8_bits_per_mb[2][QINDEX_RANGE];
+extern const int qrounding_factors[129];
+extern const int qzbin_factors[129];
+extern void vp8cx_init_quantizer(VP8_COMP *cpi);
+extern const int vp8cx_base_skip_false_prob[128];
+/* Tables relating active max Q to active min Q */
+static const unsigned char kf_low_motion_minq[QINDEX_RANGE] =
+{
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,
+3,3,3,3,3,3,4,4,4,5,5,5,5,5,6,6,
+6,6,7,7,8,8,8,8,9,9,10,10,10,10,11,11,
+11,11,12,12,13,13,13,13,14,14,15,15,15,15,16,16,
+16,16,17,17,18,18,18,18,19,20,20,21,21,22,23,23
+};
+static const unsigned char kf_high_motion_minq[QINDEX_RANGE] =
+{
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,1,1,1,1,1,1,1,2,2,2,2,3,3,3,3,
+3,3,3,3,4,4,4,4,5,5,5,5,5,5,6,6,
+6,6,7,7,8,8,8,8,9,9,10,10,10,10,11,11,
+11,11,12,12,13,13,13,13,14,14,15,15,15,15,16,16,
+16,16,17,17,18,18,18,18,19,19,20,20,20,20,21,21,
+21,21,22,22,23,23,24,25,25,26,26,27,28,28,29,30
+};
+static const unsigned char gf_low_motion_minq[QINDEX_RANGE] =
+{
+0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,
+3,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,
+7,7,7,7,8,8,8,8,9,9,9,9,10,10,10,10,
+11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,
+19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,
+27,27,28,28,29,29,30,30,31,31,32,32,33,33,34,34,
+35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,
+43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58
+};
+static const unsigned char gf_mid_motion_minq[QINDEX_RANGE] =
+{
+0,0,0,0,1,1,1,1,1,1,2,2,3,3,3,4,
+4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
+9,10,10,10,10,11,11,11,12,12,12,12,13,13,13,14,
+14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,
+22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,
+30,30,31,31,32,32,33,33,34,34,35,35,36,36,37,37,
+38,39,39,40,40,41,41,42,42,43,43,44,45,46,47,48,
+49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64
+};
+static const unsigned char gf_high_motion_minq[QINDEX_RANGE] =
+{
+0,0,0,0,1,1,1,1,1,2,2,2,3,3,3,4,
+4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
+9,10,10,10,11,11,12,12,13,13,14,14,15,15,16,16,
+17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,
+25,25,26,26,27,27,28,28,29,29,30,30,31,31,32,32,
+33,33,34,34,35,35,36,36,37,37,38,38,39,39,40,40,
+41,41,42,42,43,44,45,46,47,48,49,50,51,52,53,54,
+55,56,57,58,59,60,62,64,66,68,70,72,74,76,78,80
+};
+static const unsigned char inter_minq[QINDEX_RANGE] =
+{
+0,0,1,1,2,3,3,4,4,5,6,6,7,8,8,9,
+9,10,11,11,12,13,13,14,15,15,16,17,17,18,19,20,
+20,21,22,22,23,24,24,25,26,27,27,28,29,30,30,31,
+32,33,33,34,35,36,36,37,38,39,39,40,41,42,42,43,
+44,45,46,46,47,48,49,50,50,51,52,53,54,55,55,56,
+57,58,59,60,60,61,62,63,64,65,66,67,67,68,69,70,
+71,72,73,74,75,75,76,77,78,79,80,81,82,83,84,85,
+86,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100
+};
+#ifdef PACKET_TESTING
+extern FILE *vpxlogc;
+#endif
+static void save_layer_context(VP8_COMP *cpi)
+{
+LAYER_CONTEXT *lc = &cpi->layer_context[cpi->current_layer];
+/* Save layer dependent coding state */
+lc->target_bandwidth                 = cpi->target_bandwidth;
+lc->starting_buffer_level            = cpi->oxcf.starting_buffer_level;
+lc->optimal_buffer_level             = cpi->oxcf.optimal_buffer_level;
+lc->maximum_buffer_size              = cpi->oxcf.maximum_buffer_size;
+lc->starting_buffer_level_in_ms      = cpi->oxcf.starting_buffer_level_in_ms;
+lc->optimal_buffer_level_in_ms       = cpi->oxcf.optimal_buffer_level_in_ms;
+lc->maximum_buffer_size_in_ms        = cpi->oxcf.maximum_buffer_size_in_ms;
+lc->buffer_level                     = cpi->buffer_level;
+lc->bits_off_target                  = cpi->bits_off_target;
+lc->total_actual_bits                = cpi->total_actual_bits;
+lc->worst_quality                    = cpi->worst_quality;
+lc->active_worst_quality             = cpi->active_worst_quality;
+lc->best_quality                     = cpi->best_quality;
+lc->active_best_quality              = cpi->active_best_quality;
+lc->ni_av_qi                         = cpi->ni_av_qi;
+lc->ni_tot_qi                        = cpi->ni_tot_qi;
+lc->ni_frames                        = cpi->ni_frames;
+lc->avg_frame_qindex                 = cpi->avg_frame_qindex;
+lc->rate_correction_factor           = cpi->rate_correction_factor;
+lc->key_frame_rate_correction_factor = cpi->key_frame_rate_correction_factor;
+lc->gf_rate_correction_factor        = cpi->gf_rate_correction_factor;
+lc->zbin_over_quant                  = cpi->mb.zbin_over_quant;
+lc->inter_frame_target               = cpi->inter_frame_target;
+lc->total_byte_count                 = cpi->total_byte_count;
+lc->filter_level                     = cpi->common.filter_level;
+lc->last_frame_percent_intra         = cpi->last_frame_percent_intra;
+memcpy (lc->count_mb_ref_frame_usage,
+cpi->mb.count_mb_ref_frame_usage,
+sizeof(cpi->mb.count_mb_ref_frame_usage));
+}
+static void restore_layer_context(VP8_COMP *cpi, const int layer)
+{
+LAYER_CONTEXT *lc = &cpi->layer_context[layer];
+/* Restore layer dependent coding state */
+cpi->current_layer                    = layer;
+cpi->target_bandwidth                 = lc->target_bandwidth;
+cpi->oxcf.target_bandwidth            = lc->target_bandwidth;
+cpi->oxcf.starting_buffer_level       = lc->starting_buffer_level;
+cpi->oxcf.optimal_buffer_level        = lc->optimal_buffer_level;
+cpi->oxcf.maximum_buffer_size         = lc->maximum_buffer_size;
+cpi->oxcf.starting_buffer_level_in_ms = lc->starting_buffer_level_in_ms;
+cpi->oxcf.optimal_buffer_level_in_ms  = lc->optimal_buffer_level_in_ms;
+cpi->oxcf.maximum_buffer_size_in_ms   = lc->maximum_buffer_size_in_ms;
+cpi->buffer_level                     = lc->buffer_level;
+cpi->bits_off_target                  = lc->bits_off_target;
+cpi->total_actual_bits                = lc->total_actual_bits;
+cpi->active_worst_quality             = lc->active_worst_quality;
+cpi->active_best_quality              = lc->active_best_quality;
+cpi->ni_av_qi                         = lc->ni_av_qi;
+cpi->ni_tot_qi                        = lc->ni_tot_qi;
+cpi->ni_frames                        = lc->ni_frames;
+cpi->avg_frame_qindex                 = lc->avg_frame_qindex;
+cpi->rate_correction_factor           = lc->rate_correction_factor;
+cpi->key_frame_rate_correction_factor = lc->key_frame_rate_correction_factor;
+cpi->gf_rate_correction_factor        = lc->gf_rate_correction_factor;
+cpi->mb.zbin_over_quant                  = lc->zbin_over_quant;
+cpi->inter_frame_target               = lc->inter_frame_target;
+cpi->total_byte_count                 = lc->total_byte_count;
+cpi->common.filter_level              = lc->filter_level;
+cpi->last_frame_percent_intra         = lc->last_frame_percent_intra;
+memcpy (cpi->mb.count_mb_ref_frame_usage,
+lc->count_mb_ref_frame_usage,
+sizeof(cpi->mb.count_mb_ref_frame_usage));
+}
+static int rescale(int val, int num, int denom)
+{
+int64_t llnum = num;
+int64_t llden = denom;
+int64_t llval = val;
+return (int)(llval * llnum / llden);
+}
+static void init_temporal_layer_context(VP8_COMP *cpi,
+VP8_CONFIG *oxcf,
+const int layer,
+double prev_layer_framerate)
+{
+LAYER_CONTEXT *lc = &cpi->layer_context[layer];
+lc->framerate = cpi->output_framerate / cpi->oxcf.rate_decimator[layer];
+lc->target_bandwidth = cpi->oxcf.target_bitrate[layer] * 1000;
+lc->starting_buffer_level_in_ms = oxcf->starting_buffer_level;
+lc->optimal_buffer_level_in_ms  = oxcf->optimal_buffer_level;
+lc->maximum_buffer_size_in_ms   = oxcf->maximum_buffer_size;
+lc->starting_buffer_level =
+rescale((int)(oxcf->starting_buffer_level),
+lc->target_bandwidth, 1000);
+if (oxcf->optimal_buffer_level == 0)
+lc->optimal_buffer_level = lc->target_bandwidth / 8;
+else
+lc->optimal_buffer_level =
+rescale((int)(oxcf->optimal_buffer_level),
+lc->target_bandwidth, 1000);
+if (oxcf->maximum_buffer_size == 0)
+lc->maximum_buffer_size = lc->target_bandwidth / 8;
+else
+lc->maximum_buffer_size =
+rescale((int)(oxcf->maximum_buffer_size),
+lc->target_bandwidth, 1000);
+/* Work out the average size of a frame within this layer */
+if (layer > 0)
+lc->avg_frame_size_for_layer =
+(int)((cpi->oxcf.target_bitrate[layer] -
+cpi->oxcf.target_bitrate[layer-1]) * 1000 /
+(lc->framerate - prev_layer_framerate));
+lc->active_worst_quality         = cpi->oxcf.worst_allowed_q;
+lc->active_best_quality          = cpi->oxcf.best_allowed_q;
+lc->avg_frame_qindex             = cpi->oxcf.worst_allowed_q;
+lc->buffer_level                 = lc->starting_buffer_level;
+lc->bits_off_target              = lc->starting_buffer_level;
+lc->total_actual_bits                 = 0;
+lc->ni_av_qi                          = 0;
+lc->ni_tot_qi                         = 0;
+lc->ni_frames                         = 0;
+lc->rate_correction_factor            = 1.0;
+lc->key_frame_rate_correction_factor  = 1.0;
+lc->gf_rate_correction_factor         = 1.0;
+lc->inter_frame_target                = 0;
+}
+// Upon a run-time change in temporal layers, reset the layer context parameters
+// for any "new" layers. For "existing" layers, let them inherit the parameters
+// from the previous layer state (at the same layer #). In future we may want
+// to better map the previous layer state(s) to the "new" ones.
+static void reset_temporal_layer_change(VP8_COMP *cpi,
+VP8_CONFIG *oxcf,
+const int prev_num_layers)
+{
+int i;
+double prev_layer_framerate = 0;
+const int curr_num_layers = cpi->oxcf.number_of_layers;
+// If the previous state was 1 layer, get current layer context from cpi.
+// We need this to set the layer context for the new layers below.
+if (prev_num_layers == 1)
+{
+cpi->current_layer = 0;
+save_layer_context(cpi);
+}
+for (i = 0; i < curr_num_layers; i++)
+{
+LAYER_CONTEXT *lc = &cpi->layer_context[i];
+if (i >= prev_num_layers)
+{
+init_temporal_layer_context(cpi, oxcf, i, prev_layer_framerate);
+}
+// The initial buffer levels are set based on their starting levels.
+// We could set the buffer levels based on the previous state (normalized
+// properly by the layer bandwidths) but we would need to keep track of
+// the previous set of layer bandwidths (i.e., target_bitrate[i])
+// before the layer change. For now, reset to the starting levels.
+lc->buffer_level = cpi->oxcf.starting_buffer_level_in_ms *
+cpi->oxcf.target_bitrate[i];
+lc->bits_off_target = lc->buffer_level;
+// TDOD(marpan): Should we set the rate_correction_factor and
+// active_worst/best_quality to values derived from the previous layer
+// state (to smooth-out quality dips/rate fluctuation at transition)?
+// We need to treat the 1 layer case separately: oxcf.target_bitrate[i]
+// is not set for 1 layer, and the restore_layer_context/save_context()
+// are not called in the encoding loop, so we need to call it here to
+// pass the layer context state to |cpi|.
+if (curr_num_layers == 1)
+{
+lc->target_bandwidth = cpi->oxcf.target_bandwidth;
+lc->buffer_level = cpi->oxcf.starting_buffer_level_in_ms *
+lc->target_bandwidth  / 1000;
+lc->bits_off_target = lc->buffer_level;
+restore_layer_context(cpi, 0);
+}
+prev_layer_framerate = cpi->output_framerate /
+cpi->oxcf.rate_decimator[i];
+}
+}
+static void setup_features(VP8_COMP *cpi)
+{
+// If segmentation enabled set the update flags
+if ( cpi->mb.e_mbd.segmentation_enabled )
+{
+cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+}
+else
+{
+cpi->mb.e_mbd.update_mb_segmentation_map = 0;
+cpi->mb.e_mbd.update_mb_segmentation_data = 0;
+}
+cpi->mb.e_mbd.mode_ref_lf_delta_enabled = 0;
+cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
+vpx_memset(cpi->mb.e_mbd.ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
+vpx_memset(cpi->mb.e_mbd.mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
+vpx_memset(cpi->mb.e_mbd.last_ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
+vpx_memset(cpi->mb.e_mbd.last_mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
+set_default_lf_deltas(cpi);
+}
+static void dealloc_raw_frame_buffers(VP8_COMP *cpi);
+static void dealloc_compressor_data(VP8_COMP *cpi)
+{
+vpx_free(cpi->tplist);
+cpi->tplist = NULL;
+/* Delete last frame MV storage buffers */
+vpx_free(cpi->lfmv);
+cpi->lfmv = 0;
+vpx_free(cpi->lf_ref_frame_sign_bias);
+cpi->lf_ref_frame_sign_bias = 0;
+vpx_free(cpi->lf_ref_frame);
+cpi->lf_ref_frame = 0;
+/* Delete sementation map */
+vpx_free(cpi->segmentation_map);
+cpi->segmentation_map = 0;
+vpx_free(cpi->active_map);
+cpi->active_map = 0;
+vp8_de_alloc_frame_buffers(&cpi->common);
+vp8_yv12_de_alloc_frame_buffer(&cpi->pick_lf_lvl_frame);
+vp8_yv12_de_alloc_frame_buffer(&cpi->scaled_source);
+dealloc_raw_frame_buffers(cpi);
+vpx_free(cpi->tok);
+cpi->tok = 0;
+/* Structure used to monitor GF usage */
+vpx_free(cpi->gf_active_flags);
+cpi->gf_active_flags = 0;
+/* Activity mask based per mb zbin adjustments */
+vpx_free(cpi->mb_activity_map);
+cpi->mb_activity_map = 0;
+vpx_free(cpi->mb.pip);
+cpi->mb.pip = 0;
+#if CONFIG_MULTITHREAD
+vpx_free(cpi->mt_current_mb_col);
+cpi->mt_current_mb_col = NULL;
+#endif
+}
+static void enable_segmentation(VP8_COMP *cpi)
+{
+/* Set the appropriate feature bit */
+cpi->mb.e_mbd.segmentation_enabled = 1;
+cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+}
+static void disable_segmentation(VP8_COMP *cpi)
+{
+/* Clear the appropriate feature bit */
+cpi->mb.e_mbd.segmentation_enabled = 0;
+}
+/* Valid values for a segment are 0 to 3
+* Segmentation map is arrange as [Rows][Columns]
+*/
+static void set_segmentation_map(VP8_COMP *cpi, unsigned char *segmentation_map)
+{
+/* Copy in the new segmentation map */
+vpx_memcpy(cpi->segmentation_map, segmentation_map, (cpi->common.mb_rows * cpi->common.mb_cols));
+/* Signal that the map should be updated. */
+cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+}
+/* The values given for each segment can be either deltas (from the default
+* value chosen for the frame) or absolute values.
+*
+* Valid range for abs values is:
+*    (0-127 for MB_LVL_ALT_Q), (0-63 for SEGMENT_ALT_LF)
+* Valid range for delta values are:
+*    (+/-127 for MB_LVL_ALT_Q), (+/-63 for SEGMENT_ALT_LF)
+*
+* abs_delta = SEGMENT_DELTADATA (deltas)
+* abs_delta = SEGMENT_ABSDATA (use the absolute values given).
+*
+*/
+static void set_segment_data(VP8_COMP *cpi, signed char *feature_data, unsigned char abs_delta)
+{
+cpi->mb.e_mbd.mb_segement_abs_delta = abs_delta;
+vpx_memcpy(cpi->segment_feature_data, feature_data, sizeof(cpi->segment_feature_data));
+}
+static void segmentation_test_function(VP8_COMP *cpi)
+{
+unsigned char *seg_map;
+signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
+// Create a temporary map for segmentation data.
+CHECK_MEM_ERROR(seg_map, vpx_calloc(cpi->common.mb_rows * cpi->common.mb_cols, 1));
+// Set the segmentation Map
+set_segmentation_map(cpi, seg_map);
+// Activate segmentation.
+enable_segmentation(cpi);
+// Set up the quant segment data
+feature_data[MB_LVL_ALT_Q][0] = 0;
+feature_data[MB_LVL_ALT_Q][1] = 4;
+feature_data[MB_LVL_ALT_Q][2] = 0;
+feature_data[MB_LVL_ALT_Q][3] = 0;
+// Set up the loop segment data
+feature_data[MB_LVL_ALT_LF][0] = 0;
+feature_data[MB_LVL_ALT_LF][1] = 0;
+feature_data[MB_LVL_ALT_LF][2] = 0;
+feature_data[MB_LVL_ALT_LF][3] = 0;
+// Initialise the feature data structure
+// SEGMENT_DELTADATA    0, SEGMENT_ABSDATA      1
+set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
+// Delete sementation map
+vpx_free(seg_map);
+seg_map = 0;
+}
+/* A simple function to cyclically refresh the background at a lower Q */
+static void cyclic_background_refresh(VP8_COMP *cpi, int Q, int lf_adjustment)
+{
+unsigned char *seg_map = cpi->segmentation_map;
+signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
+int i;
+int block_count = cpi->cyclic_refresh_mode_max_mbs_perframe;
+int mbs_in_frame = cpi->common.mb_rows * cpi->common.mb_cols;
+cpi->cyclic_refresh_q = Q / 2;
+// Set every macroblock to be eligible for update.
+// For key frame this will reset seg map to 0.
+vpx_memset(cpi->segmentation_map, 0, mbs_in_frame);
+if (cpi->common.frame_type != KEY_FRAME)
+{
+/* Cycle through the macro_block rows */
+/* MB loop to set local segmentation map */
+i = cpi->cyclic_refresh_mode_index;
+assert(i < mbs_in_frame);
+do
+{
+/* If the MB is as a candidate for clean up then mark it for
+* possible boost/refresh (segment 1) The segment id may get
+* reset to 0 later if the MB gets coded anything other than
+* last frame 0,0 as only (last frame 0,0) MBs are eligable for
+* refresh : that is to say Mbs likely to be background blocks.
+*/
+if (cpi->cyclic_refresh_map[i] == 0)
+{
+seg_map[i] = 1;
+block_count --;
+}
+else if (cpi->cyclic_refresh_map[i] < 0)
+cpi->cyclic_refresh_map[i]++;
+i++;
+if (i == mbs_in_frame)
+i = 0;
+}
+while(block_count && i != cpi->cyclic_refresh_mode_index);
+cpi->cyclic_refresh_mode_index = i;
+}
+/* Activate segmentation. */
+cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+enable_segmentation(cpi);
+/* Set up the quant segment data */
+feature_data[MB_LVL_ALT_Q][0] = 0;
+feature_data[MB_LVL_ALT_Q][1] = (cpi->cyclic_refresh_q - Q);
+feature_data[MB_LVL_ALT_Q][2] = 0;
+feature_data[MB_LVL_ALT_Q][3] = 0;
+/* Set up the loop segment data */
+feature_data[MB_LVL_ALT_LF][0] = 0;
+feature_data[MB_LVL_ALT_LF][1] = lf_adjustment;
+feature_data[MB_LVL_ALT_LF][2] = 0;
+feature_data[MB_LVL_ALT_LF][3] = 0;
+/* Initialise the feature data structure */
+set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
+}
+static void set_default_lf_deltas(VP8_COMP *cpi)
+{
+cpi->mb.e_mbd.mode_ref_lf_delta_enabled = 1;
+cpi->mb.e_mbd.mode_ref_lf_delta_update = 1;
+vpx_memset(cpi->mb.e_mbd.ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
+vpx_memset(cpi->mb.e_mbd.mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
+/* Test of ref frame deltas */
+cpi->mb.e_mbd.ref_lf_deltas[INTRA_FRAME] = 2;
+cpi->mb.e_mbd.ref_lf_deltas[LAST_FRAME] = 0;
+cpi->mb.e_mbd.ref_lf_deltas[GOLDEN_FRAME] = -2;
+cpi->mb.e_mbd.ref_lf_deltas[ALTREF_FRAME] = -2;
+cpi->mb.e_mbd.mode_lf_deltas[0] = 4;               /* BPRED */
+if(cpi->oxcf.Mode == MODE_REALTIME)
+cpi->mb.e_mbd.mode_lf_deltas[1] = -12;              /* Zero */
+else
+cpi->mb.e_mbd.mode_lf_deltas[1] = -2;              /* Zero */
+cpi->mb.e_mbd.mode_lf_deltas[2] = 2;               /* New mv */
+cpi->mb.e_mbd.mode_lf_deltas[3] = 4;               /* Split mv */
+}
+/* Convenience macros for mapping speed and mode into a continuous
+* range
+*/
+#define GOOD(x) (x+1)
+#define RT(x) (x+7)
+static int speed_map(int speed, const int *map)
+{
+int res;
+do
+{
+res = *map++;
+} while(speed >= *map++);
+return res;
+}
+static const int thresh_mult_map_znn[] = {
+/* map common to zero, nearest, and near */
+0, GOOD(2), 1500, GOOD(3), 2000, RT(0), 1000, RT(2), 2000, INT_MAX
+};
+static const int thresh_mult_map_vhpred[] = {
+1000, GOOD(2), 1500, GOOD(3), 2000, RT(0), 1000, RT(1), 2000,
+RT(7), INT_MAX, INT_MAX
+};
+static const int thresh_mult_map_bpred[] = {
+2000, GOOD(0), 2500, GOOD(2), 5000, GOOD(3), 7500, RT(0), 2500, RT(1), 5000,
+RT(6), INT_MAX, INT_MAX
+};
+static const int thresh_mult_map_tm[] = {
+1000, GOOD(2), 1500, GOOD(3), 2000, RT(0), 0, RT(1), 1000, RT(2), 2000,
+RT(7), INT_MAX, INT_MAX
+};
+static const int thresh_mult_map_new1[] = {
+1000, GOOD(2), 2000, RT(0), 2000, INT_MAX
+};
+static const int thresh_mult_map_new2[] = {
+1000, GOOD(2), 2000, GOOD(3), 2500, GOOD(5), 4000, RT(0), 2000, RT(2), 2500,
+RT(5), 4000, INT_MAX
+};
+static const int thresh_mult_map_split1[] = {
+2500, GOOD(0), 1700, GOOD(2), 10000, GOOD(3), 25000, GOOD(4), INT_MAX,
+RT(0), 5000, RT(1), 10000, RT(2), 25000, RT(3), INT_MAX, INT_MAX
+};
+static const int thresh_mult_map_split2[] = {
+5000, GOOD(0), 4500, GOOD(2), 20000, GOOD(3), 50000, GOOD(4), INT_MAX,
+RT(0), 10000, RT(1), 20000, RT(2), 50000, RT(3), INT_MAX, INT_MAX
+};
+static const int mode_check_freq_map_zn2[] = {
+/* {zero,nearest}{2,3} */
+0, RT(10), 1<<1, RT(11), 1<<2, RT(12), 1<<3, INT_MAX
+};
+static const int mode_check_freq_map_vhbpred[] = {
+0, GOOD(5), 2, RT(0), 0, RT(3), 2, RT(5), 4, INT_MAX
+};
+static const int mode_check_freq_map_near2[] = {
+0, GOOD(5), 2, RT(0), 0, RT(3), 2, RT(10), 1<<2, RT(11), 1<<3, RT(12), 1<<4,
+INT_MAX
+};
+static const int mode_check_freq_map_new1[] = {
+0, RT(10), 1<<1, RT(11), 1<<2, RT(12), 1<<3, INT_MAX
+};
+static const int mode_check_freq_map_new2[] = {
+0, GOOD(5), 4, RT(0), 0, RT(3), 4, RT(10), 1<<3, RT(11), 1<<4, RT(12), 1<<5,
+INT_MAX
+};
+static const int mode_check_freq_map_split1[] = {
+0, GOOD(2), 2, GOOD(3), 7, RT(1), 2, RT(2), 7, INT_MAX
+};
+static const int mode_check_freq_map_split2[] = {
+0, GOOD(1), 2, GOOD(2), 4, GOOD(3), 15, RT(1), 4, RT(2), 15, INT_MAX
+};
+void vp8_set_speed_features(VP8_COMP *cpi)
+{
+SPEED_FEATURES *sf = &cpi->sf;
+int Mode = cpi->compressor_speed;
+int Speed = cpi->Speed;
+int i;
+VP8_COMMON *cm = &cpi->common;
+int last_improved_quant = sf->improved_quant;
+int ref_frames;
+/* Initialise default mode frequency sampling variables */
+for (i = 0; i < MAX_MODES; i ++)
+{
+cpi->mode_check_freq[i] = 0;
+}
+cpi->mb.mbs_tested_so_far = 0;
+/* best quality defaults */
+sf->RD = 1;
+sf->search_method = NSTEP;
+sf->improved_quant = 1;
+sf->improved_dct = 1;
+sf->auto_filter = 1;
+sf->recode_loop = 1;
+sf->quarter_pixel_search = 1;
+sf->half_pixel_search = 1;
+sf->iterative_sub_pixel = 1;
+sf->optimize_coefficients = 1;
+sf->use_fastquant_for_pick = 0;
+sf->no_skip_block4x4_search = 1;
+sf->first_step = 0;
+sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
+sf->improved_mv_pred = 1;
+/* default thresholds to 0 */
+for (i = 0; i < MAX_MODES; i++)
+sf->thresh_mult[i] = 0;
+/* Count enabled references */
+ref_frames = 1;
+if (cpi->ref_frame_flags & VP8_LAST_FRAME)
+ref_frames++;
+if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
+ref_frames++;
+if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
+ref_frames++;
+/* Convert speed to continuous range, with clamping */
+if (Mode == 0)
+Speed = 0;
+else if (Mode == 2)
+Speed = RT(Speed);
+else
+{
+if (Speed > 5)
+Speed = 5;
+Speed = GOOD(Speed);
+}
+sf->thresh_mult[THR_ZERO1] =
+sf->thresh_mult[THR_NEAREST1] =
+sf->thresh_mult[THR_NEAR1] =
+sf->thresh_mult[THR_DC] = 0; /* always */
+sf->thresh_mult[THR_ZERO2] =
+sf->thresh_mult[THR_ZERO3] =
+sf->thresh_mult[THR_NEAREST2] =
+sf->thresh_mult[THR_NEAREST3] =
+sf->thresh_mult[THR_NEAR2]  =
+sf->thresh_mult[THR_NEAR3]  = speed_map(Speed, thresh_mult_map_znn);
+sf->thresh_mult[THR_V_PRED] =
+sf->thresh_mult[THR_H_PRED] = speed_map(Speed, thresh_mult_map_vhpred);
+sf->thresh_mult[THR_B_PRED] = speed_map(Speed, thresh_mult_map_bpred);
+sf->thresh_mult[THR_TM]     = speed_map(Speed, thresh_mult_map_tm);
+sf->thresh_mult[THR_NEW1]   = speed_map(Speed, thresh_mult_map_new1);
+sf->thresh_mult[THR_NEW2]   =
+sf->thresh_mult[THR_NEW3]   = speed_map(Speed, thresh_mult_map_new2);
+sf->thresh_mult[THR_SPLIT1] = speed_map(Speed, thresh_mult_map_split1);
+sf->thresh_mult[THR_SPLIT2] =
+sf->thresh_mult[THR_SPLIT3] = speed_map(Speed, thresh_mult_map_split2);
+cpi->mode_check_freq[THR_ZERO1] =
+cpi->mode_check_freq[THR_NEAREST1] =
+cpi->mode_check_freq[THR_NEAR1] =
+cpi->mode_check_freq[THR_TM]     =
+cpi->mode_check_freq[THR_DC] = 0; /* always */
+cpi->mode_check_freq[THR_ZERO2] =
+cpi->mode_check_freq[THR_ZERO3] =
+cpi->mode_check_freq[THR_NEAREST2] =
+cpi->mode_check_freq[THR_NEAREST3] = speed_map(Speed,
+mode_check_freq_map_zn2);
+cpi->mode_check_freq[THR_NEAR2]  =
+cpi->mode_check_freq[THR_NEAR3]  = speed_map(Speed,
+mode_check_freq_map_near2);
+cpi->mode_check_freq[THR_V_PRED] =
+cpi->mode_check_freq[THR_H_PRED] =
+cpi->mode_check_freq[THR_B_PRED] = speed_map(Speed,
+mode_check_freq_map_vhbpred);
+cpi->mode_check_freq[THR_NEW1]   = speed_map(Speed,
+mode_check_freq_map_new1);
+cpi->mode_check_freq[THR_NEW2]   =
+cpi->mode_check_freq[THR_NEW3]   = speed_map(Speed,
+mode_check_freq_map_new2);
+cpi->mode_check_freq[THR_SPLIT1] = speed_map(Speed,
+mode_check_freq_map_split1);
+cpi->mode_check_freq[THR_SPLIT2] =
+cpi->mode_check_freq[THR_SPLIT3] = speed_map(Speed,
+mode_check_freq_map_split2);
+Speed = cpi->Speed;
+switch (Mode)
+{
+#if !(CONFIG_REALTIME_ONLY)
+case 0: /* best quality mode */
+sf->first_step = 0;
+sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
+break;
+case 1:
+case 3:
+if (Speed > 0)
+{
+/* Disable coefficient optimization above speed 0 */
+sf->optimize_coefficients = 0;
+sf->use_fastquant_for_pick = 1;
+sf->no_skip_block4x4_search = 0;
+sf->first_step = 1;
+}
+if (Speed > 2)
+{
+sf->improved_quant = 0;
+sf->improved_dct = 0;
+/* Only do recode loop on key frames, golden frames and
+* alt ref frames
+*/
+sf->recode_loop = 2;
+}
+if (Speed > 3)
+{
+sf->auto_filter = 1;
+sf->recode_loop = 0; /* recode loop off */
+sf->RD = 0;         /* Turn rd off */
+}
+if (Speed > 4)
+{
+sf->auto_filter = 0;  /* Faster selection of loop filter */
+}
+break;
+#endif
+case 2:
+sf->optimize_coefficients = 0;
+sf->recode_loop = 0;
+sf->auto_filter = 1;
+sf->iterative_sub_pixel = 1;
+sf->search_method = NSTEP;
+if (Speed > 0)
+{
+sf->improved_quant = 0;
+sf->improved_dct = 0;
+sf->use_fastquant_for_pick = 1;
+sf->no_skip_block4x4_search = 0;
+sf->first_step = 1;
+}
+if (Speed > 2)
+sf->auto_filter = 0;  /* Faster selection of loop filter */
+if (Speed > 3)
+{
+sf->RD = 0;
+sf->auto_filter = 1;
+}
+if (Speed > 4)
+{
+sf->auto_filter = 0;  /* Faster selection of loop filter */
+sf->search_method = HEX;
+sf->iterative_sub_pixel = 0;
+}
+if (Speed > 6)
+{
+unsigned int sum = 0;
+unsigned int total_mbs = cm->MBs;
+int thresh;
+unsigned int total_skip;
+int min = 2000;
+if (cpi->oxcf.encode_breakout > 2000)
+min = cpi->oxcf.encode_breakout;
+min >>= 7;
+for (i = 0; i < min; i++)
+{
+sum += cpi->mb.error_bins[i];
+}
+total_skip = sum;
+sum = 0;
+/* i starts from 2 to make sure thresh started from 2048 */
+for (; i < 1024; i++)
+{
+sum += cpi->mb.error_bins[i];
+if (10 * sum >= (unsigned int)(cpi->Speed - 6)*(total_mbs - total_skip))
+break;
+}
+i--;
+thresh = (i << 7);
+if (thresh < 2000)
+thresh = 2000;
+if (ref_frames > 1)
+{
+sf->thresh_mult[THR_NEW1 ] = thresh;
+sf->thresh_mult[THR_NEAREST1  ] = thresh >> 1;
+sf->thresh_mult[THR_NEAR1     ] = thresh >> 1;
+}
+if (ref_frames > 2)
+{
+sf->thresh_mult[THR_NEW2] = thresh << 1;
+sf->thresh_mult[THR_NEAREST2 ] = thresh;
+sf->thresh_mult[THR_NEAR2    ] = thresh;
+}
+if (ref_frames > 3)
+{
+sf->thresh_mult[THR_NEW3] = thresh << 1;
+sf->thresh_mult[THR_NEAREST3 ] = thresh;
+sf->thresh_mult[THR_NEAR3    ] = thresh;
+}
+sf->improved_mv_pred = 0;
+}
+if (Speed > 8)
+sf->quarter_pixel_search = 0;
+if(cm->version == 0)
+{
+cm->filter_type = NORMAL_LOOPFILTER;
+if (Speed >= 14)
+cm->filter_type = SIMPLE_LOOPFILTER;
+}
+else
+{
+cm->filter_type = SIMPLE_LOOPFILTER;
+}
+/* This has a big hit on quality. Last resort */
+if (Speed >= 15)
+sf->half_pixel_search = 0;
+vpx_memset(cpi->mb.error_bins, 0, sizeof(cpi->mb.error_bins));
+}; /* switch */
+/* Slow quant, dct and trellis not worthwhile for first pass
+* so make sure they are always turned off.
+*/
+if ( cpi->pass == 1 )
+{
+sf->improved_quant = 0;
+sf->optimize_coefficients = 0;
+sf->improved_dct = 0;
+}
+if (cpi->sf.search_method == NSTEP)
+{
+vp8_init3smotion_compensation(&cpi->mb, cm->yv12_fb[cm->lst_fb_idx].y_stride);
+}
+else if (cpi->sf.search_method == DIAMOND)
+{
+vp8_init_dsmotion_compensation(&cpi->mb, cm->yv12_fb[cm->lst_fb_idx].y_stride);
+}
+if (cpi->sf.improved_dct)
+{
+cpi->mb.short_fdct8x4 = vp8_short_fdct8x4;
+cpi->mb.short_fdct4x4 = vp8_short_fdct4x4;
+}
+else
+{
+/* No fast FDCT defined for any platform at this time. */
+cpi->mb.short_fdct8x4 = vp8_short_fdct8x4;
+cpi->mb.short_fdct4x4 = vp8_short_fdct4x4;
+}
+cpi->mb.short_walsh4x4 = vp8_short_walsh4x4;
+if (cpi->sf.improved_quant)
+{
+cpi->mb.quantize_b      = vp8_regular_quantize_b;
+cpi->mb.quantize_b_pair = vp8_regular_quantize_b_pair;
+}
+else
+{
+cpi->mb.quantize_b      = vp8_fast_quantize_b;
+cpi->mb.quantize_b_pair = vp8_fast_quantize_b_pair;
+}
+if (cpi->sf.improved_quant != last_improved_quant)
+vp8cx_init_quantizer(cpi);
+if (cpi->sf.iterative_sub_pixel == 1)
+{
+cpi->find_fractional_mv_step = vp8_find_best_sub_pixel_step_iteratively;
+}
+else if (cpi->sf.quarter_pixel_search)
+{
+cpi->find_fractional_mv_step = vp8_find_best_sub_pixel_step;
+}
+else if (cpi->sf.half_pixel_search)
+{
+cpi->find_fractional_mv_step = vp8_find_best_half_pixel_step;
+}
+else
+{
+cpi->find_fractional_mv_step = vp8_skip_fractional_mv_step;
+}
+if (cpi->sf.optimize_coefficients == 1 && cpi->pass!=1)
+cpi->mb.optimize = 1;
+else
+cpi->mb.optimize = 0;
+if (cpi->common.full_pixel)
+cpi->find_fractional_mv_step = vp8_skip_fractional_mv_step;
+#ifdef SPEEDSTATS
+frames_at_speed[cpi->Speed]++;
+#endif
+}
+#undef GOOD
+#undef RT
+static void alloc_raw_frame_buffers(VP8_COMP *cpi)
+{
+#if VP8_TEMPORAL_ALT_REF
+int width = (cpi->oxcf.Width + 15) & ~15;
+int height = (cpi->oxcf.Height + 15) & ~15;
+#endif
+cpi->lookahead = vp8_lookahead_init(cpi->oxcf.Width, cpi->oxcf.Height,
+cpi->oxcf.lag_in_frames);
+if(!cpi->lookahead)
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate lag buffers");
+#if VP8_TEMPORAL_ALT_REF
+if (vp8_yv12_alloc_frame_buffer(&cpi->alt_ref_buffer,
+width, height, VP8BORDERINPIXELS))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate altref buffer");
+#endif
+}
+static void dealloc_raw_frame_buffers(VP8_COMP *cpi)
+{
+#if VP8_TEMPORAL_ALT_REF
+vp8_yv12_de_alloc_frame_buffer(&cpi->alt_ref_buffer);
+#endif
+vp8_lookahead_destroy(cpi->lookahead);
+}
+static int vp8_alloc_partition_data(VP8_COMP *cpi)
+{
+vpx_free(cpi->mb.pip);
+cpi->mb.pip = vpx_calloc((cpi->common.mb_cols + 1) *
+(cpi->common.mb_rows + 1),
+sizeof(PARTITION_INFO));
+if(!cpi->mb.pip)
+return 1;
+cpi->mb.pi = cpi->mb.pip + cpi->common.mode_info_stride + 1;
+return 0;
+}
+void vp8_alloc_compressor_data(VP8_COMP *cpi)
+{
+VP8_COMMON *cm = & cpi->common;
+int width = cm->Width;
+int height = cm->Height;
+if (vp8_alloc_frame_buffers(cm, width, height))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate frame buffers");
+if (vp8_alloc_partition_data(cpi))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate partition data");
+if ((width & 0xf) != 0)
+width += 16 - (width & 0xf);
+if ((height & 0xf) != 0)
+height += 16 - (height & 0xf);
+if (vp8_yv12_alloc_frame_buffer(&cpi->pick_lf_lvl_frame,
+width, height, VP8BORDERINPIXELS))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate last frame buffer");
+if (vp8_yv12_alloc_frame_buffer(&cpi->scaled_source,
+width, height, VP8BORDERINPIXELS))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate scaled source buffer");
+vpx_free(cpi->tok);
+{
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+unsigned int tokens = 8 * 24 * 16; /* one MB for each thread */
+#else
+unsigned int tokens = cm->mb_rows * cm->mb_cols * 24 * 16;
+#endif
+CHECK_MEM_ERROR(cpi->tok, vpx_calloc(tokens, sizeof(*cpi->tok)));
+}
+/* Data used for real time vc mode to see if gf needs refreshing */
+cpi->zeromv_count = 0;
+/* Structures used to monitor GF usage */
+vpx_free(cpi->gf_active_flags);
+CHECK_MEM_ERROR(cpi->gf_active_flags,
+vpx_calloc(sizeof(*cpi->gf_active_flags),
+cm->mb_rows * cm->mb_cols));
+cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
+vpx_free(cpi->mb_activity_map);
+CHECK_MEM_ERROR(cpi->mb_activity_map,
+vpx_calloc(sizeof(*cpi->mb_activity_map),
+cm->mb_rows * cm->mb_cols));
+/* allocate memory for storing last frame's MVs for MV prediction. */
+vpx_free(cpi->lfmv);
+CHECK_MEM_ERROR(cpi->lfmv, vpx_calloc((cm->mb_rows+2) * (cm->mb_cols+2),
+sizeof(*cpi->lfmv)));
+vpx_free(cpi->lf_ref_frame_sign_bias);
+CHECK_MEM_ERROR(cpi->lf_ref_frame_sign_bias,
+vpx_calloc((cm->mb_rows+2) * (cm->mb_cols+2),
+sizeof(*cpi->lf_ref_frame_sign_bias)));
+vpx_free(cpi->lf_ref_frame);
+CHECK_MEM_ERROR(cpi->lf_ref_frame,
+vpx_calloc((cm->mb_rows+2) * (cm->mb_cols+2),
+sizeof(*cpi->lf_ref_frame)));
+/* Create the encoder segmentation map and set all entries to 0 */
+vpx_free(cpi->segmentation_map);
+CHECK_MEM_ERROR(cpi->segmentation_map,
+vpx_calloc(cm->mb_rows * cm->mb_cols,
+sizeof(*cpi->segmentation_map)));
+cpi->cyclic_refresh_mode_index = 0;
+vpx_free(cpi->active_map);
+CHECK_MEM_ERROR(cpi->active_map,
+vpx_calloc(cm->mb_rows * cm->mb_cols,
+sizeof(*cpi->active_map)));
+vpx_memset(cpi->active_map , 1, (cm->mb_rows * cm->mb_cols));
+#if CONFIG_MULTITHREAD
+if (width < 640)
+cpi->mt_sync_range = 1;
+else if (width <= 1280)
+cpi->mt_sync_range = 4;
+else if (width <= 2560)
+cpi->mt_sync_range = 8;
+else
+cpi->mt_sync_range = 16;
+if (cpi->oxcf.multi_threaded > 1)
+{
+vpx_free(cpi->mt_current_mb_col);
+CHECK_MEM_ERROR(cpi->mt_current_mb_col,
+vpx_malloc(sizeof(*cpi->mt_current_mb_col) * cm->mb_rows));
+}
+#endif
+vpx_free(cpi->tplist);
+CHECK_MEM_ERROR(cpi->tplist, vpx_malloc(sizeof(TOKENLIST) * cm->mb_rows));
+}
+/* Quant MOD */
+static const int q_trans[] =
+{
+0,   1,  2,  3,  4,  5,  7,  8,
+9,  10, 12, 13, 15, 17, 18, 19,
+20,  21, 23, 24, 25, 26, 27, 28,
+29,  30, 31, 33, 35, 37, 39, 41,
+43,  45, 47, 49, 51, 53, 55, 57,
+59,  61, 64, 67, 70, 73, 76, 79,
+82,  85, 88, 91, 94, 97, 100, 103,
+106, 109, 112, 115, 118, 121, 124, 127,
+};
+int vp8_reverse_trans(int x)
+{
+int i;
+for (i = 0; i < 64; i++)
+if (q_trans[i] >= x)
+return i;
+return 63;
+}
+void vp8_new_framerate(VP8_COMP *cpi, double framerate)
+{
+if(framerate < .1)
+framerate = 30;
+cpi->framerate              = framerate;
+cpi->output_framerate       = framerate;
+cpi->per_frame_bandwidth    = (int)(cpi->oxcf.target_bandwidth /
+cpi->output_framerate);
+cpi->av_per_frame_bandwidth = cpi->per_frame_bandwidth;
+cpi->min_frame_bandwidth    = (int)(cpi->av_per_frame_bandwidth *
+cpi->oxcf.two_pass_vbrmin_section / 100);
+/* Set Maximum gf/arf interval */
+cpi->max_gf_interval = ((int)(cpi->output_framerate / 2.0) + 2);
+if(cpi->max_gf_interval < 12)
+cpi->max_gf_interval = 12;
+/* Extended interval for genuinely static scenes */
+cpi->twopass.static_scene_max_gf_interval = cpi->key_frame_frequency >> 1;
+/* Special conditions when altr ref frame enabled in lagged compress mode */
+if (cpi->oxcf.play_alternate && cpi->oxcf.lag_in_frames)
+{
+if (cpi->max_gf_interval > cpi->oxcf.lag_in_frames - 1)
+cpi->max_gf_interval = cpi->oxcf.lag_in_frames - 1;
+if (cpi->twopass.static_scene_max_gf_interval > cpi->oxcf.lag_in_frames - 1)
+cpi->twopass.static_scene_max_gf_interval = cpi->oxcf.lag_in_frames - 1;
+}
+if ( cpi->max_gf_interval > cpi->twopass.static_scene_max_gf_interval )
+cpi->max_gf_interval = cpi->twopass.static_scene_max_gf_interval;
+}
+static void init_config(VP8_COMP *cpi, VP8_CONFIG *oxcf)
+{
+VP8_COMMON *cm = &cpi->common;
+cpi->oxcf = *oxcf;
+cpi->auto_gold = 1;
+cpi->auto_adjust_gold_quantizer = 1;
+cm->version = oxcf->Version;
+vp8_setup_version(cm);
+/* frame rate is not available on the first frame, as it's derived from
+* the observed timestamps. The actual value used here doesn't matter
+* too much, as it will adapt quickly. If the reciprocal of the timebase
+* seems like a reasonable framerate, then use that as a guess, otherwise
+* use 30.
+*/
+cpi->framerate = (double)(oxcf->timebase.den) /
+(double)(oxcf->timebase.num);
+if (cpi->framerate > 180)
+cpi->framerate = 30;
+cpi->ref_framerate = cpi->framerate;
+/* change includes all joint functionality */
+vp8_change_config(cpi, oxcf);
+/* Initialize active best and worst q and average q values. */
+cpi->active_worst_quality         = cpi->oxcf.worst_allowed_q;
+cpi->active_best_quality          = cpi->oxcf.best_allowed_q;
+cpi->avg_frame_qindex             = cpi->oxcf.worst_allowed_q;
+/* Initialise the starting buffer levels */
+cpi->buffer_level                 = cpi->oxcf.starting_buffer_level;
+cpi->bits_off_target              = cpi->oxcf.starting_buffer_level;
+cpi->rolling_target_bits          = cpi->av_per_frame_bandwidth;
+cpi->rolling_actual_bits          = cpi->av_per_frame_bandwidth;
+cpi->long_rolling_target_bits     = cpi->av_per_frame_bandwidth;
+cpi->long_rolling_actual_bits     = cpi->av_per_frame_bandwidth;
+cpi->total_actual_bits            = 0;
+cpi->total_target_vs_actual       = 0;
+/* Temporal scalabilty */
+if (cpi->oxcf.number_of_layers > 1)
+{
+unsigned int i;
+double prev_layer_framerate=0;
+for (i=0; i<cpi->oxcf.number_of_layers; i++)
+{
+init_temporal_layer_context(cpi, oxcf, i, prev_layer_framerate);
+prev_layer_framerate = cpi->output_framerate /
+cpi->oxcf.rate_decimator[i];
+}
+}
+#if VP8_TEMPORAL_ALT_REF
+{
+int i;
+cpi->fixed_divide[0] = 0;
+for (i = 1; i < 512; i++)
+cpi->fixed_divide[i] = 0x80000 / i;
+}
+#endif
+}
+static void update_layer_contexts (VP8_COMP *cpi)
+{
+VP8_CONFIG *oxcf = &cpi->oxcf;
+/* Update snapshots of the layer contexts to reflect new parameters */
+if (oxcf->number_of_layers > 1)
+{
+unsigned int i;
+double prev_layer_framerate=0;
+for (i=0; i<oxcf->number_of_layers; i++)
+{
+LAYER_CONTEXT *lc = &cpi->layer_context[i];
+lc->framerate =
+cpi->ref_framerate / oxcf->rate_decimator[i];
+lc->target_bandwidth = oxcf->target_bitrate[i] * 1000;
+lc->starting_buffer_level = rescale(
+(int)oxcf->starting_buffer_level_in_ms,
+lc->target_bandwidth, 1000);
+if (oxcf->optimal_buffer_level == 0)
+lc->optimal_buffer_level = lc->target_bandwidth / 8;
+else
+lc->optimal_buffer_level = rescale(
+(int)oxcf->optimal_buffer_level_in_ms,
+lc->target_bandwidth, 1000);
+if (oxcf->maximum_buffer_size == 0)
+lc->maximum_buffer_size = lc->target_bandwidth / 8;
+else
+lc->maximum_buffer_size = rescale(
+(int)oxcf->maximum_buffer_size_in_ms,
+lc->target_bandwidth, 1000);
+/* Work out the average size of a frame within this layer */
+if (i > 0)
+lc->avg_frame_size_for_layer =
+(int)((oxcf->target_bitrate[i] -
+oxcf->target_bitrate[i-1]) * 1000 /
+(lc->framerate - prev_layer_framerate));
+prev_layer_framerate = lc->framerate;
+}
+}
+}
+void vp8_change_config(VP8_COMP *cpi, VP8_CONFIG *oxcf)
+{
+VP8_COMMON *cm = &cpi->common;
+int last_w, last_h, prev_number_of_layers;
+if (!cpi)
+return;
+if (!oxcf)
+return;
+#if CONFIG_MULTITHREAD
+/*  wait for the last picture loopfilter thread done */
+if (cpi->b_lpf_running)
+{
+sem_wait(&cpi->h_event_end_lpf);
+cpi->b_lpf_running = 0;
+}
+#endif
+if (cm->version != oxcf->Version)
+{
+cm->version = oxcf->Version;
+vp8_setup_version(cm);
+}
+last_w = cpi->oxcf.Width;
+last_h = cpi->oxcf.Height;
+prev_number_of_layers = cpi->oxcf.number_of_layers;
+cpi->oxcf = *oxcf;
+switch (cpi->oxcf.Mode)
+{
+case MODE_REALTIME:
+cpi->pass = 0;
+cpi->compressor_speed = 2;
+if (cpi->oxcf.cpu_used < -16)
+{
+cpi->oxcf.cpu_used = -16;
+}
+if (cpi->oxcf.cpu_used > 16)
+cpi->oxcf.cpu_used = 16;
+break;
+case MODE_GOODQUALITY:
+cpi->pass = 0;
+cpi->compressor_speed = 1;
+if (cpi->oxcf.cpu_used < -5)
+{
+cpi->oxcf.cpu_used = -5;
+}
+if (cpi->oxcf.cpu_used > 5)
+cpi->oxcf.cpu_used = 5;
+break;
+case MODE_BESTQUALITY:
+cpi->pass = 0;
+cpi->compressor_speed = 0;
+break;
+case MODE_FIRSTPASS:
+cpi->pass = 1;
+cpi->compressor_speed = 1;
+break;
+case MODE_SECONDPASS:
+cpi->pass = 2;
+cpi->compressor_speed = 1;
+if (cpi->oxcf.cpu_used < -5)
+{
+cpi->oxcf.cpu_used = -5;
+}
+if (cpi->oxcf.cpu_used > 5)
+cpi->oxcf.cpu_used = 5;
+break;
+case MODE_SECONDPASS_BEST:
+cpi->pass = 2;
+cpi->compressor_speed = 0;
+break;
+}
+if (cpi->pass == 0)
+cpi->auto_worst_q = 1;
+cpi->oxcf.worst_allowed_q = q_trans[oxcf->worst_allowed_q];
+cpi->oxcf.best_allowed_q = q_trans[oxcf->best_allowed_q];
+cpi->oxcf.cq_level = q_trans[cpi->oxcf.cq_level];
+if (oxcf->fixed_q >= 0)
+{
+if (oxcf->worst_allowed_q < 0)
+cpi->oxcf.fixed_q = q_trans[0];
+else
+cpi->oxcf.fixed_q = q_trans[oxcf->worst_allowed_q];
+if (oxcf->alt_q < 0)
+cpi->oxcf.alt_q = q_trans[0];
+else
+cpi->oxcf.alt_q = q_trans[oxcf->alt_q];
+if (oxcf->key_q < 0)
+cpi->oxcf.key_q = q_trans[0];
+else
+cpi->oxcf.key_q = q_trans[oxcf->key_q];
+if (oxcf->gold_q < 0)
+cpi->oxcf.gold_q = q_trans[0];
+else
+cpi->oxcf.gold_q = q_trans[oxcf->gold_q];
+}
+cpi->baseline_gf_interval =
+cpi->oxcf.alt_freq ? cpi->oxcf.alt_freq : DEFAULT_GF_INTERVAL;
+cpi->ref_frame_flags = VP8_ALTR_FRAME | VP8_GOLD_FRAME | VP8_LAST_FRAME;
+cm->refresh_golden_frame = 0;
+cm->refresh_last_frame = 1;
+cm->refresh_entropy_probs = 1;
+#if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+cpi->oxcf.token_partitions = 3;
+#endif
+if (cpi->oxcf.token_partitions >= 0 && cpi->oxcf.token_partitions <= 3)
+cm->multi_token_partition =
+(TOKEN_PARTITION) cpi->oxcf.token_partitions;
+setup_features(cpi);
+{
+int i;
+for (i = 0; i < MAX_MB_SEGMENTS; i++)
+cpi->segment_encode_breakout[i] = cpi->oxcf.encode_breakout;
+}
+/* At the moment the first order values may not be > MAXQ */
+if (cpi->oxcf.fixed_q > MAXQ)
+cpi->oxcf.fixed_q = MAXQ;
+/* local file playback mode == really big buffer */
+if (cpi->oxcf.end_usage == USAGE_LOCAL_FILE_PLAYBACK)
+{
+cpi->oxcf.starting_buffer_level       = 60000;
+cpi->oxcf.optimal_buffer_level        = 60000;
+cpi->oxcf.maximum_buffer_size         = 240000;
+cpi->oxcf.starting_buffer_level_in_ms = 60000;
+cpi->oxcf.optimal_buffer_level_in_ms  = 60000;
+cpi->oxcf.maximum_buffer_size_in_ms   = 240000;
+}
+/* Convert target bandwidth from Kbit/s to Bit/s */
+cpi->oxcf.target_bandwidth       *= 1000;
+cpi->oxcf.starting_buffer_level =
+rescale((int)cpi->oxcf.starting_buffer_level,
+cpi->oxcf.target_bandwidth, 1000);
+/* Set or reset optimal and maximum buffer levels. */
+if (cpi->oxcf.optimal_buffer_level == 0)
+cpi->oxcf.optimal_buffer_level = cpi->oxcf.target_bandwidth / 8;
+else
+cpi->oxcf.optimal_buffer_level =
+rescale((int)cpi->oxcf.optimal_buffer_level,
+cpi->oxcf.target_bandwidth, 1000);
+if (cpi->oxcf.maximum_buffer_size == 0)
+cpi->oxcf.maximum_buffer_size = cpi->oxcf.target_bandwidth / 8;
+else
+cpi->oxcf.maximum_buffer_size =
+rescale((int)cpi->oxcf.maximum_buffer_size,
+cpi->oxcf.target_bandwidth, 1000);
+/* Set up frame rate and related parameters rate control values. */
+vp8_new_framerate(cpi, cpi->framerate);
+/* Set absolute upper and lower quality limits */
+cpi->worst_quality               = cpi->oxcf.worst_allowed_q;
+cpi->best_quality                = cpi->oxcf.best_allowed_q;
+/* active values should only be modified if out of new range */
+if (cpi->active_worst_quality > cpi->oxcf.worst_allowed_q)
+{
+cpi->active_worst_quality = cpi->oxcf.worst_allowed_q;
+}
+/* less likely */
+else if (cpi->active_worst_quality < cpi->oxcf.best_allowed_q)
+{
+cpi->active_worst_quality = cpi->oxcf.best_allowed_q;
+}
+if (cpi->active_best_quality < cpi->oxcf.best_allowed_q)
+{
+cpi->active_best_quality = cpi->oxcf.best_allowed_q;
+}
+/* less likely */
+else if (cpi->active_best_quality > cpi->oxcf.worst_allowed_q)
+{
+cpi->active_best_quality = cpi->oxcf.worst_allowed_q;
+}
+cpi->buffered_mode = cpi->oxcf.optimal_buffer_level > 0;
+cpi->cq_target_quality = cpi->oxcf.cq_level;
+/* Only allow dropped frames in buffered mode */
+cpi->drop_frames_allowed = cpi->oxcf.allow_df && cpi->buffered_mode;
+cpi->target_bandwidth = cpi->oxcf.target_bandwidth;
+// Check if the number of temporal layers has changed, and if so reset the
+// pattern counter and set/initialize the temporal layer context for the
+// new layer configuration.
+if (cpi->oxcf.number_of_layers != prev_number_of_layers)
+{
+// If the number of temporal layers are changed we must start at the
+// base of the pattern cycle, so reset temporal_pattern_counter.
+cpi->temporal_pattern_counter = 0;
+reset_temporal_layer_change(cpi, oxcf, prev_number_of_layers);
+}
+cm->Width       = cpi->oxcf.Width;
+cm->Height      = cpi->oxcf.Height;
+/* TODO(jkoleszar): if an internal spatial resampling is active,
+* and we downsize the input image, maybe we should clear the
+* internal scale immediately rather than waiting for it to
+* correct.
+*/
+/* VP8 sharpness level mapping 0-7 (vs 0-10 in general VPx dialogs) */
+if (cpi->oxcf.Sharpness > 7)
+cpi->oxcf.Sharpness = 7;
+cm->sharpness_level = cpi->oxcf.Sharpness;
+if (cm->horiz_scale != NORMAL || cm->vert_scale != NORMAL)
+{
+int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
+int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
+Scale2Ratio(cm->horiz_scale, &hr, &hs);
+Scale2Ratio(cm->vert_scale, &vr, &vs);
+/* always go to the next whole number */
+cm->Width = (hs - 1 + cpi->oxcf.Width * hr) / hs;
+cm->Height = (vs - 1 + cpi->oxcf.Height * vr) / vs;
+}
+if (last_w != cpi->oxcf.Width || last_h != cpi->oxcf.Height)
+cpi->force_next_frame_intra = 1;
+if (((cm->Width + 15) & 0xfffffff0) !=
+cm->yv12_fb[cm->lst_fb_idx].y_width ||
+((cm->Height + 15) & 0xfffffff0) !=
+cm->yv12_fb[cm->lst_fb_idx].y_height ||
+cm->yv12_fb[cm->lst_fb_idx].y_width == 0)
+{
+dealloc_raw_frame_buffers(cpi);
+alloc_raw_frame_buffers(cpi);
+vp8_alloc_compressor_data(cpi);
+}
+if (cpi->oxcf.fixed_q >= 0)
+{
+cpi->last_q[0] = cpi->oxcf.fixed_q;
+cpi->last_q[1] = cpi->oxcf.fixed_q;
+}
+cpi->Speed = cpi->oxcf.cpu_used;
+/* force to allowlag to 0 if lag_in_frames is 0; */
+if (cpi->oxcf.lag_in_frames == 0)
+{
+cpi->oxcf.allow_lag = 0;
+}
+/* Limit on lag buffers as these are not currently dynamically allocated */
+else if (cpi->oxcf.lag_in_frames > MAX_LAG_BUFFERS)
+cpi->oxcf.lag_in_frames = MAX_LAG_BUFFERS;
+/* YX Temp */
+cpi->alt_ref_source = NULL;
+cpi->is_src_frame_alt_ref = 0;
+#if CONFIG_TEMPORAL_DENOISING
+if (cpi->oxcf.noise_sensitivity)
+{
+if (!cpi->denoiser.yv12_mc_running_avg.buffer_alloc)
+{
+int width = (cpi->oxcf.Width + 15) & ~15;
+int height = (cpi->oxcf.Height + 15) & ~15;
+vp8_denoiser_allocate(&cpi->denoiser, width, height);
+}
+}
+#endif
+#if 0
+/* Experimental RD Code */
+cpi->frame_distortion = 0;
+cpi->last_frame_distortion = 0;
+#endif
+}
+#define M_LOG2_E 0.693147180559945309417
+#define log2f(x) (log (x) / (float) M_LOG2_E)
+static void cal_mvsadcosts(int *mvsadcost[2])
+{
+int i = 1;
+mvsadcost [0] [0] = 300;
+mvsadcost [1] [0] = 300;
+do
+{
+double z = 256 * (2 * (log2f(8 * i) + .6));
+mvsadcost [0][i] = (int) z;
+mvsadcost [1][i] = (int) z;
+mvsadcost [0][-i] = (int) z;
+mvsadcost [1][-i] = (int) z;
+}
+while (++i <= mvfp_max);
+}
+struct VP8_COMP* vp8_create_compressor(VP8_CONFIG *oxcf)
+{
+int i;
+VP8_COMP *cpi;
+VP8_COMMON *cm;
+cpi = vpx_memalign(32, sizeof(VP8_COMP));
+/* Check that the CPI instance is valid */
+if (!cpi)
+return 0;
+cm = &cpi->common;
+vpx_memset(cpi, 0, sizeof(VP8_COMP));
+if (setjmp(cm->error.jmp))
+{
+cpi->common.error.setjmp = 0;
+vp8_remove_compressor(&cpi);
+return 0;
+}
+cpi->common.error.setjmp = 1;
+CHECK_MEM_ERROR(cpi->mb.ss, vpx_calloc(sizeof(search_site), (MAX_MVSEARCH_STEPS * 8) + 1));
+vp8_create_common(&cpi->common);
+init_config(cpi, oxcf);
+memcpy(cpi->base_skip_false_prob, vp8cx_base_skip_false_prob, sizeof(vp8cx_base_skip_false_prob));
+cpi->common.current_video_frame   = 0;
+cpi->temporal_pattern_counter     = 0;
+cpi->kf_overspend_bits            = 0;
+cpi->kf_bitrate_adjustment        = 0;
+cpi->frames_till_gf_update_due      = 0;
+cpi->gf_overspend_bits            = 0;
+cpi->non_gf_bitrate_adjustment     = 0;
+cpi->prob_last_coded              = 128;
+cpi->prob_gf_coded                = 128;
+cpi->prob_intra_coded             = 63;
+/* Prime the recent reference frame usage counters.
+* Hereafter they will be maintained as a sort of moving average
+*/
+cpi->recent_ref_frame_usage[INTRA_FRAME]  = 1;
+cpi->recent_ref_frame_usage[LAST_FRAME]   = 1;
+cpi->recent_ref_frame_usage[GOLDEN_FRAME] = 1;
+cpi->recent_ref_frame_usage[ALTREF_FRAME] = 1;
+/* Set reference frame sign bias for ALTREF frame to 1 (for now) */
+cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 1;
+cpi->twopass.gf_decay_rate = 0;
+cpi->baseline_gf_interval = DEFAULT_GF_INTERVAL;
+cpi->gold_is_last = 0 ;
+cpi->alt_is_last  = 0 ;
+cpi->gold_is_alt  = 0 ;
+cpi->active_map_enabled = 0;
+#if 0
+/* Experimental code for lagged and one pass */
+/* Initialise one_pass GF frames stats */
+/* Update stats used for GF selection */
+if (cpi->pass == 0)
+{
+cpi->one_pass_frame_index = 0;
+for (i = 0; i < MAX_LAG_BUFFERS; i++)
+{
+cpi->one_pass_frame_stats[i].frames_so_far = 0;
+cpi->one_pass_frame_stats[i].frame_intra_error = 0.0;
+cpi->one_pass_frame_stats[i].frame_coded_error = 0.0;
+cpi->one_pass_frame_stats[i].frame_pcnt_inter = 0.0;
+cpi->one_pass_frame_stats[i].frame_pcnt_motion = 0.0;
+cpi->one_pass_frame_stats[i].frame_mvr = 0.0;
+cpi->one_pass_frame_stats[i].frame_mvr_abs = 0.0;
+cpi->one_pass_frame_stats[i].frame_mvc = 0.0;
+cpi->one_pass_frame_stats[i].frame_mvc_abs = 0.0;
+}
+}
+#endif
+/* Should we use the cyclic refresh method.
+* Currently this is tied to error resilliant mode
+*/
+cpi->cyclic_refresh_mode_enabled = cpi->oxcf.error_resilient_mode;
+cpi->cyclic_refresh_mode_max_mbs_perframe = (cpi->common.mb_rows * cpi->common.mb_cols) / 5;
+cpi->cyclic_refresh_mode_index = 0;
+cpi->cyclic_refresh_q = 32;
+if (cpi->cyclic_refresh_mode_enabled)
+{
+CHECK_MEM_ERROR(cpi->cyclic_refresh_map, vpx_calloc((cpi->common.mb_rows * cpi->common.mb_cols), 1));
+}
+else
+cpi->cyclic_refresh_map = (signed char *) NULL;
+#ifdef VP8_ENTROPY_STATS
+init_context_counters();
+#endif
+/*Initialize the feed-forward activity masking.*/
+cpi->activity_avg = 90<<12;
+/* Give a sensible default for the first frame. */
+cpi->frames_since_key = 8;
+cpi->key_frame_frequency = cpi->oxcf.key_freq;
+cpi->this_key_frame_forced = 0;
+cpi->next_key_frame_forced = 0;
+cpi->source_alt_ref_pending = 0;
+cpi->source_alt_ref_active = 0;
+cpi->common.refresh_alt_ref_frame = 0;
+cpi->b_calculate_psnr = CONFIG_INTERNAL_STATS;
+#if CONFIG_INTERNAL_STATS
+cpi->b_calculate_ssimg = 0;
+cpi->count = 0;
+cpi->bytes = 0;
+if (cpi->b_calculate_psnr)
+{
+cpi->total_sq_error = 0.0;
+cpi->total_sq_error2 = 0.0;
+cpi->total_y = 0.0;
+cpi->total_u = 0.0;
+cpi->total_v = 0.0;
+cpi->total = 0.0;
+cpi->totalp_y = 0.0;
+cpi->totalp_u = 0.0;
+cpi->totalp_v = 0.0;
+cpi->totalp = 0.0;
+cpi->tot_recode_hits = 0;
+cpi->summed_quality = 0;
+cpi->summed_weights = 0;
+}
+if (cpi->b_calculate_ssimg)
+{
+cpi->total_ssimg_y = 0;
+cpi->total_ssimg_u = 0;
+cpi->total_ssimg_v = 0;
+cpi->total_ssimg_all = 0;
+}
+#endif
+cpi->first_time_stamp_ever = 0x7FFFFFFF;
+cpi->frames_till_gf_update_due      = 0;
+cpi->key_frame_count              = 1;
+cpi->ni_av_qi                     = cpi->oxcf.worst_allowed_q;
+cpi->ni_tot_qi                    = 0;
+cpi->ni_frames                   = 0;
+cpi->total_byte_count             = 0;
+cpi->drop_frame                  = 0;
+cpi->rate_correction_factor         = 1.0;
+cpi->key_frame_rate_correction_factor = 1.0;
+cpi->gf_rate_correction_factor  = 1.0;
+cpi->twopass.est_max_qcorrection_factor  = 1.0;
+for (i = 0; i < KEY_FRAME_CONTEXT; i++)
+{
+cpi->prior_key_frame_distance[i] = (int)cpi->output_framerate;
+}
+#ifdef OUTPUT_YUV_SRC
+yuv_file = fopen("bd.yuv", "ab");
+#endif
+#if 0
+framepsnr = fopen("framepsnr.stt", "a");
+kf_list = fopen("kf_list.stt", "w");
+#endif
+cpi->output_pkt_list = oxcf->output_pkt_list;
+#if !(CONFIG_REALTIME_ONLY)
+if (cpi->pass == 1)
+{
+vp8_init_first_pass(cpi);
+}
+else if (cpi->pass == 2)
+{
+size_t packet_sz = sizeof(FIRSTPASS_STATS);
+int packets = (int)(oxcf->two_pass_stats_in.sz / packet_sz);
+cpi->twopass.stats_in_start = oxcf->two_pass_stats_in.buf;
+cpi->twopass.stats_in = cpi->twopass.stats_in_start;
+cpi->twopass.stats_in_end = (void*)((char *)cpi->twopass.stats_in
++ (packets - 1) * packet_sz);
+vp8_init_second_pass(cpi);
+}
+#endif
+if (cpi->compressor_speed == 2)
+{
+cpi->avg_encode_time      = 0;
+cpi->avg_pick_mode_time    = 0;
+}
+vp8_set_speed_features(cpi);
+/* Set starting values of RD threshold multipliers (128 = *1) */
+for (i = 0; i < MAX_MODES; i++)
+{
+cpi->mb.rd_thresh_mult[i] = 128;
+}
+#ifdef VP8_ENTROPY_STATS
+init_mv_ref_counts();
+#endif
+#if CONFIG_MULTITHREAD
+if(vp8cx_create_encoder_threads(cpi))
+{
+vp8_remove_compressor(&cpi);
+return 0;
+}
+#endif
+cpi->fn_ptr[BLOCK_16X16].sdf            = vp8_sad16x16;
+cpi->fn_ptr[BLOCK_16X16].vf             = vp8_variance16x16;
+cpi->fn_ptr[BLOCK_16X16].svf            = vp8_sub_pixel_variance16x16;
+cpi->fn_ptr[BLOCK_16X16].svf_halfpix_h  = vp8_variance_halfpixvar16x16_h;
+cpi->fn_ptr[BLOCK_16X16].svf_halfpix_v  = vp8_variance_halfpixvar16x16_v;
+cpi->fn_ptr[BLOCK_16X16].svf_halfpix_hv = vp8_variance_halfpixvar16x16_hv;
+cpi->fn_ptr[BLOCK_16X16].sdx3f          = vp8_sad16x16x3;
+cpi->fn_ptr[BLOCK_16X16].sdx8f          = vp8_sad16x16x8;
+cpi->fn_ptr[BLOCK_16X16].sdx4df         = vp8_sad16x16x4d;
+cpi->fn_ptr[BLOCK_16X8].sdf            = vp8_sad16x8;
+cpi->fn_ptr[BLOCK_16X8].vf             = vp8_variance16x8;
+cpi->fn_ptr[BLOCK_16X8].svf            = vp8_sub_pixel_variance16x8;
+cpi->fn_ptr[BLOCK_16X8].svf_halfpix_h  = NULL;
+cpi->fn_ptr[BLOCK_16X8].svf_halfpix_v  = NULL;
+cpi->fn_ptr[BLOCK_16X8].svf_halfpix_hv = NULL;
+cpi->fn_ptr[BLOCK_16X8].sdx3f          = vp8_sad16x8x3;
+cpi->fn_ptr[BLOCK_16X8].sdx8f          = vp8_sad16x8x8;
+cpi->fn_ptr[BLOCK_16X8].sdx4df         = vp8_sad16x8x4d;
+cpi->fn_ptr[BLOCK_8X16].sdf            = vp8_sad8x16;
+cpi->fn_ptr[BLOCK_8X16].vf             = vp8_variance8x16;
+cpi->fn_ptr[BLOCK_8X16].svf            = vp8_sub_pixel_variance8x16;
+cpi->fn_ptr[BLOCK_8X16].svf_halfpix_h  = NULL;
+cpi->fn_ptr[BLOCK_8X16].svf_halfpix_v  = NULL;
+cpi->fn_ptr[BLOCK_8X16].svf_halfpix_hv = NULL;
+cpi->fn_ptr[BLOCK_8X16].sdx3f          = vp8_sad8x16x3;
+cpi->fn_ptr[BLOCK_8X16].sdx8f          = vp8_sad8x16x8;
+cpi->fn_ptr[BLOCK_8X16].sdx4df         = vp8_sad8x16x4d;
+cpi->fn_ptr[BLOCK_8X8].sdf            = vp8_sad8x8;
+cpi->fn_ptr[BLOCK_8X8].vf             = vp8_variance8x8;
+cpi->fn_ptr[BLOCK_8X8].svf            = vp8_sub_pixel_variance8x8;
+cpi->fn_ptr[BLOCK_8X8].svf_halfpix_h  = NULL;
+cpi->fn_ptr[BLOCK_8X8].svf_halfpix_v  = NULL;
+cpi->fn_ptr[BLOCK_8X8].svf_halfpix_hv = NULL;
+cpi->fn_ptr[BLOCK_8X8].sdx3f          = vp8_sad8x8x3;
+cpi->fn_ptr[BLOCK_8X8].sdx8f          = vp8_sad8x8x8;
+cpi->fn_ptr[BLOCK_8X8].sdx4df         = vp8_sad8x8x4d;
+cpi->fn_ptr[BLOCK_4X4].sdf            = vp8_sad4x4;
+cpi->fn_ptr[BLOCK_4X4].vf             = vp8_variance4x4;
+cpi->fn_ptr[BLOCK_4X4].svf            = vp8_sub_pixel_variance4x4;
+cpi->fn_ptr[BLOCK_4X4].svf_halfpix_h  = NULL;
+cpi->fn_ptr[BLOCK_4X4].svf_halfpix_v  = NULL;
+cpi->fn_ptr[BLOCK_4X4].svf_halfpix_hv = NULL;
+cpi->fn_ptr[BLOCK_4X4].sdx3f          = vp8_sad4x4x3;
+cpi->fn_ptr[BLOCK_4X4].sdx8f          = vp8_sad4x4x8;
+cpi->fn_ptr[BLOCK_4X4].sdx4df         = vp8_sad4x4x4d;
+#if ARCH_X86 || ARCH_X86_64
+cpi->fn_ptr[BLOCK_16X16].copymem      = vp8_copy32xn;
+cpi->fn_ptr[BLOCK_16X8].copymem       = vp8_copy32xn;
+cpi->fn_ptr[BLOCK_8X16].copymem       = vp8_copy32xn;
+cpi->fn_ptr[BLOCK_8X8].copymem        = vp8_copy32xn;
+cpi->fn_ptr[BLOCK_4X4].copymem        = vp8_copy32xn;
+#endif
+cpi->full_search_sad = vp8_full_search_sad;
+cpi->diamond_search_sad = vp8_diamond_search_sad;
+cpi->refining_search_sad = vp8_refining_search_sad;
+/* make sure frame 1 is okay */
+cpi->mb.error_bins[0] = cpi->common.MBs;
+/* vp8cx_init_quantizer() is first called here. Add check in
+* vp8cx_frame_init_quantizer() so that vp8cx_init_quantizer is only
+* called later when needed. This will avoid unnecessary calls of
+* vp8cx_init_quantizer() for every frame.
+*/
+vp8cx_init_quantizer(cpi);
+vp8_loop_filter_init(cm);
+cpi->common.error.setjmp = 0;
+#if CONFIG_MULTI_RES_ENCODING
+/* Calculate # of MBs in a row in lower-resolution level image. */
+if (cpi->oxcf.mr_encoder_id > 0)
+vp8_cal_low_res_mb_cols(cpi);
+#endif
+/* setup RD costs to MACROBLOCK struct */
+cpi->mb.mvcost[0] = &cpi->rd_costs.mvcosts[0][mv_max+1];
+cpi->mb.mvcost[1] = &cpi->rd_costs.mvcosts[1][mv_max+1];
+cpi->mb.mvsadcost[0] = &cpi->rd_costs.mvsadcosts[0][mvfp_max+1];
+cpi->mb.mvsadcost[1] = &cpi->rd_costs.mvsadcosts[1][mvfp_max+1];
+cal_mvsadcosts(cpi->mb.mvsadcost);
+cpi->mb.mbmode_cost = cpi->rd_costs.mbmode_cost;
+cpi->mb.intra_uv_mode_cost = cpi->rd_costs.intra_uv_mode_cost;
+cpi->mb.bmode_costs = cpi->rd_costs.bmode_costs;
+cpi->mb.inter_bmode_costs = cpi->rd_costs.inter_bmode_costs;
+cpi->mb.token_costs = cpi->rd_costs.token_costs;
+/* setup block ptrs & offsets */
+vp8_setup_block_ptrs(&cpi->mb);
+vp8_setup_block_dptrs(&cpi->mb.e_mbd);
+return  cpi;
+}
+void vp8_remove_compressor(VP8_COMP **ptr)
+{
+VP8_COMP *cpi = *ptr;
+if (!cpi)
+return;
+if (cpi && (cpi->common.current_video_frame > 0))
+{
+#if !(CONFIG_REALTIME_ONLY)
+if (cpi->pass == 2)
+{
+vp8_end_second_pass(cpi);
+}
+#endif
+#ifdef VP8_ENTROPY_STATS
+print_context_counters();
+print_tree_update_probs();
+print_mode_context();
+#endif
+#if CONFIG_INTERNAL_STATS
+if (cpi->pass != 1)
+{
+FILE *f = fopen("opsnr.stt", "a");
+double time_encoded = (cpi->last_end_time_stamp_seen
+- cpi->first_time_stamp_ever) / 10000000.000;
+double total_encode_time = (cpi->time_receive_data +
+cpi->time_compress_data) / 1000.000;
+double dr = (double)cpi->bytes * 8.0 / 1000.0 / time_encoded;
+if (cpi->b_calculate_psnr)
+{
+YV12_BUFFER_CONFIG *lst_yv12 =
+&cpi->common.yv12_fb[cpi->common.lst_fb_idx];
+if (cpi->oxcf.number_of_layers > 1)
+{
+int i;
+fprintf(f, "Layer\tBitrate\tAVGPsnr\tGLBPsnr\tAVPsnrP\t"
+"GLPsnrP\tVPXSSIM\t\n");
+for (i=0; i<(int)cpi->oxcf.number_of_layers; i++)
+{
+double dr = (double)cpi->bytes_in_layer[i] *
+8.0 / 1000.0  / time_encoded;
+double samples = 3.0 / 2 * cpi->frames_in_layer[i] *
+lst_yv12->y_width * lst_yv12->y_height;
+double total_psnr = vp8_mse2psnr(samples, 255.0,
+cpi->total_error2[i]);
+double total_psnr2 = vp8_mse2psnr(samples, 255.0,
+cpi->total_error2_p[i]);
+double total_ssim = 100 * pow(cpi->sum_ssim[i] /
+cpi->sum_weights[i], 8.0);
+fprintf(f, "%5d\t%7.3f\t%7.3f\t%7.3f\t%7.3f\t"
+"%7.3f\t%7.3f\n",
+i, dr,
+cpi->sum_psnr[i] / cpi->frames_in_layer[i],
+total_psnr,
+cpi->sum_psnr_p[i] / cpi->frames_in_layer[i],
+total_psnr2, total_ssim);
+}
+}
+else
+{
+double samples = 3.0 / 2 * cpi->count *
+lst_yv12->y_width * lst_yv12->y_height;
+double total_psnr = vp8_mse2psnr(samples, 255.0,
+cpi->total_sq_error);
+double total_psnr2 = vp8_mse2psnr(samples, 255.0,
+cpi->total_sq_error2);
+double total_ssim = 100 * pow(cpi->summed_quality /
+cpi->summed_weights, 8.0);
+fprintf(f, "Bitrate\tAVGPsnr\tGLBPsnr\tAVPsnrP\t"
+"GLPsnrP\tVPXSSIM\t  Time(us)\n");
+fprintf(f, "%7.3f\t%7.3f\t%7.3f\t%7.3f\t%7.3f\t"
+"%7.3f\t%8.0f\n",
+dr, cpi->total / cpi->count, total_psnr,
+cpi->totalp / cpi->count, total_psnr2,
+total_ssim, total_encode_time);
+}
+}
+if (cpi->b_calculate_ssimg)
+{
+if (cpi->oxcf.number_of_layers > 1)
+{
+int i;
+fprintf(f, "Layer\tBitRate\tSSIM_Y\tSSIM_U\tSSIM_V\tSSIM_A\t"
+"Time(us)\n");
+for (i=0; i<(int)cpi->oxcf.number_of_layers; i++)
+{
+double dr = (double)cpi->bytes_in_layer[i] *
+8.0 / 1000.0  / time_encoded;
+fprintf(f, "%5d\t%7.3f\t%6.4f\t"
+"%6.4f\t%6.4f\t%6.4f\t%8.0f\n",
+i, dr,
+cpi->total_ssimg_y_in_layer[i] /
+cpi->frames_in_layer[i],
+cpi->total_ssimg_u_in_layer[i] /
+cpi->frames_in_layer[i],
+cpi->total_ssimg_v_in_layer[i] /
+cpi->frames_in_layer[i],
+cpi->total_ssimg_all_in_layer[i] /
+cpi->frames_in_layer[i],
+total_encode_time);
+}
+}
+else
+{
+fprintf(f, "BitRate\tSSIM_Y\tSSIM_U\tSSIM_V\tSSIM_A\t"
+"Time(us)\n");
+fprintf(f, "%7.3f\t%6.4f\t%6.4f\t%6.4f\t%6.4f\t%8.0f\n", dr,
+cpi->total_ssimg_y / cpi->count,
+cpi->total_ssimg_u / cpi->count,
+cpi->total_ssimg_v / cpi->count,
+cpi->total_ssimg_all / cpi->count, total_encode_time);
+}
+}
+fclose(f);
+#if 0
+f = fopen("qskip.stt", "a");
+fprintf(f, "minq:%d -maxq:%d skiptrue:skipfalse = %d:%d\n", cpi->oxcf.best_allowed_q, cpi->oxcf.worst_allowed_q, skiptruecount, skipfalsecount);
+fclose(f);
+#endif
+}
+#endif
+#ifdef SPEEDSTATS
+if (cpi->compressor_speed == 2)
+{
+int i;
+FILE *f = fopen("cxspeed.stt", "a");
+cnt_pm /= cpi->common.MBs;
+for (i = 0; i < 16; i++)
+fprintf(f, "%5d", frames_at_speed[i]);
+fprintf(f, "\n");
+fclose(f);
+}
+#endif
+#ifdef MODE_STATS
+{
+extern int count_mb_seg[4];
+FILE *f = fopen("modes.stt", "a");
+double dr = (double)cpi->framerate * (double)bytes * (double)8 / (double)count / (double)1000 ;
+fprintf(f, "intra_mode in Intra Frames:\n");
+fprintf(f, "Y: %8d, %8d, %8d, %8d, %8d\n", y_modes[0], y_modes[1], y_modes[2], y_modes[3], y_modes[4]);
+fprintf(f, "UV:%8d, %8d, %8d, %8d\n", uv_modes[0], uv_modes[1], uv_modes[2], uv_modes[3]);
+fprintf(f, "B: ");
+{
+int i;
+for (i = 0; i < 10; i++)
+fprintf(f, "%8d, ", b_modes[i]);
+fprintf(f, "\n");
+}
+fprintf(f, "Modes in Inter Frames:\n");
+fprintf(f, "Y: %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d\n",
+inter_y_modes[0], inter_y_modes[1], inter_y_modes[2], inter_y_modes[3], inter_y_modes[4],
+inter_y_modes[5], inter_y_modes[6], inter_y_modes[7], inter_y_modes[8], inter_y_modes[9]);
+fprintf(f, "UV:%8d, %8d, %8d, %8d\n", inter_uv_modes[0], inter_uv_modes[1], inter_uv_modes[2], inter_uv_modes[3]);
+fprintf(f, "B: ");
+{
+int i;
+for (i = 0; i < 15; i++)
+fprintf(f, "%8d, ", inter_b_modes[i]);
+fprintf(f, "\n");
+}
+fprintf(f, "P:%8d, %8d, %8d, %8d\n", count_mb_seg[0], count_mb_seg[1], count_mb_seg[2], count_mb_seg[3]);
+fprintf(f, "PB:%8d, %8d, %8d, %8d\n", inter_b_modes[LEFT4X4], inter_b_modes[ABOVE4X4], inter_b_modes[ZERO4X4], inter_b_modes[NEW4X4]);
+fclose(f);
+}
+#endif
+#ifdef VP8_ENTROPY_STATS
+{
+int i, j, k;
+FILE *fmode = fopen("modecontext.c", "w");
+fprintf(fmode, "\n#include \"entropymode.h\"\n\n");
+fprintf(fmode, "const unsigned int vp8_kf_default_bmode_counts ");
+fprintf(fmode, "[VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES] =\n{\n");
+for (i = 0; i < 10; i++)
+{
+fprintf(fmode, "    { /* Above Mode :  %d */\n", i);
+for (j = 0; j < 10; j++)
+{
+fprintf(fmode, "        {");
+for (k = 0; k < 10; k++)
+{
+if (!intra_mode_stats[i][j][k])
+fprintf(fmode, " %5d, ", 1);
+else
+fprintf(fmode, " %5d, ", intra_mode_stats[i][j][k]);
+}
+fprintf(fmode, "}, /* left_mode %d */\n", j);
+}
+fprintf(fmode, "    },\n");
+}
+fprintf(fmode, "};\n");
+fclose(fmode);
+}
+#endif
+#if defined(SECTIONBITS_OUTPUT)
+if (0)
+{
+int i;
+FILE *f = fopen("tokenbits.stt", "a");
+for (i = 0; i < 28; i++)
+fprintf(f, "%8d", (int)(Sectionbits[i] / 256));
+fprintf(f, "\n");
+fclose(f);
+}
+#endif
+#if 0
+{
+printf("\n_pick_loop_filter_level:%d\n", cpi->time_pick_lpf / 1000);
+printf("\n_frames recive_data encod_mb_row compress_frame  Total\n");
+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);
+}
+#endif
+}
+#if CONFIG_MULTITHREAD
+vp8cx_remove_encoder_threads(cpi);
+#endif
+#if CONFIG_TEMPORAL_DENOISING
+vp8_denoiser_free(&cpi->denoiser);
+#endif
+dealloc_compressor_data(cpi);
+vpx_free(cpi->mb.ss);
+vpx_free(cpi->tok);
+vpx_free(cpi->cyclic_refresh_map);
+vp8_remove_common(&cpi->common);
+vpx_free(cpi);
+*ptr = 0;
+#ifdef OUTPUT_YUV_SRC
+fclose(yuv_file);
+#endif
+#if 0
+if (keyfile)
+fclose(keyfile);
+if (framepsnr)
+fclose(framepsnr);
+if (kf_list)
+fclose(kf_list);
+#endif
+}
+static uint64_t calc_plane_error(unsigned char *orig, int orig_stride,
+unsigned char *recon, int recon_stride,
+unsigned int cols, unsigned int rows)
+{
+unsigned int row, col;
+uint64_t total_sse = 0;
+int diff;
+for (row = 0; row + 16 <= rows; row += 16)
+{
+for (col = 0; col + 16 <= cols; col += 16)
+{
+unsigned int sse;
+vp8_mse16x16(orig + col, orig_stride,
+recon + col, recon_stride,
+&sse);
+total_sse += sse;
+}
+/* Handle odd-sized width */
+if (col < cols)
+{
+unsigned int   border_row, border_col;
+unsigned char *border_orig = orig;
+unsigned char *border_recon = recon;
+for (border_row = 0; border_row < 16; border_row++)
+{
+for (border_col = col; border_col < cols; border_col++)
+{
+diff = border_orig[border_col] - border_recon[border_col];
+total_sse += diff * diff;
+}
+border_orig += orig_stride;
+border_recon += recon_stride;
+}
+}
+orig += orig_stride * 16;
+recon += recon_stride * 16;
+}
+/* Handle odd-sized height */
+for (; row < rows; row++)
+{
+for (col = 0; col < cols; col++)
+{
+diff = orig[col] - recon[col];
+total_sse += diff * diff;
+}
+orig += orig_stride;
+recon += recon_stride;
+}
+vp8_clear_system_state();
+return total_sse;
+}
+static void generate_psnr_packet(VP8_COMP *cpi)
+{
+YV12_BUFFER_CONFIG      *orig = cpi->Source;
+YV12_BUFFER_CONFIG      *recon = cpi->common.frame_to_show;
+struct vpx_codec_cx_pkt  pkt;
+uint64_t                 sse;
+int                      i;
+unsigned int             width = cpi->common.Width;
+unsigned int             height = cpi->common.Height;
+pkt.kind = VPX_CODEC_PSNR_PKT;
+sse = calc_plane_error(orig->y_buffer, orig->y_stride,
+recon->y_buffer, recon->y_stride,
+width, height);
+pkt.data.psnr.sse[0] = sse;
+pkt.data.psnr.sse[1] = sse;
+pkt.data.psnr.samples[0] = width * height;
+pkt.data.psnr.samples[1] = width * height;
+width = (width + 1) / 2;
+height = (height + 1) / 2;
+sse = calc_plane_error(orig->u_buffer, orig->uv_stride,
+recon->u_buffer, recon->uv_stride,
+width, height);
+pkt.data.psnr.sse[0] += sse;
+pkt.data.psnr.sse[2] = sse;
+pkt.data.psnr.samples[0] += width * height;
+pkt.data.psnr.samples[2] = width * height;
+sse = calc_plane_error(orig->v_buffer, orig->uv_stride,
+recon->v_buffer, recon->uv_stride,
+width, height);
+pkt.data.psnr.sse[0] += sse;
+pkt.data.psnr.sse[3] = sse;
+pkt.data.psnr.samples[0] += width * height;
+pkt.data.psnr.samples[3] = width * height;
+for (i = 0; i < 4; i++)
+pkt.data.psnr.psnr[i] = vp8_mse2psnr(pkt.data.psnr.samples[i], 255.0,
+(double)(pkt.data.psnr.sse[i]));
+vpx_codec_pkt_list_add(cpi->output_pkt_list, &pkt);
+}
+int vp8_use_as_reference(VP8_COMP *cpi, int ref_frame_flags)
+{
+if (ref_frame_flags > 7)
+return -1 ;
+cpi->ref_frame_flags = ref_frame_flags;
+return 0;
+}
+int vp8_update_reference(VP8_COMP *cpi, int ref_frame_flags)
+{
+if (ref_frame_flags > 7)
+return -1 ;
+cpi->common.refresh_golden_frame = 0;
+cpi->common.refresh_alt_ref_frame = 0;
+cpi->common.refresh_last_frame   = 0;
+if (ref_frame_flags & VP8_LAST_FRAME)
+cpi->common.refresh_last_frame = 1;
+if (ref_frame_flags & VP8_GOLD_FRAME)
+cpi->common.refresh_golden_frame = 1;
+if (ref_frame_flags & VP8_ALTR_FRAME)
+cpi->common.refresh_alt_ref_frame = 1;
+return 0;
+}
+int vp8_get_reference(VP8_COMP *cpi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
+{
+VP8_COMMON *cm = &cpi->common;
+int ref_fb_idx;
+if (ref_frame_flag == VP8_LAST_FRAME)
+ref_fb_idx = cm->lst_fb_idx;
+else if (ref_frame_flag == VP8_GOLD_FRAME)
+ref_fb_idx = cm->gld_fb_idx;
+else if (ref_frame_flag == VP8_ALTR_FRAME)
+ref_fb_idx = cm->alt_fb_idx;
+else
+return -1;
+vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
+return 0;
+}
+int vp8_set_reference(VP8_COMP *cpi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
+{
+VP8_COMMON *cm = &cpi->common;
+int ref_fb_idx;
+if (ref_frame_flag == VP8_LAST_FRAME)
+ref_fb_idx = cm->lst_fb_idx;
+else if (ref_frame_flag == VP8_GOLD_FRAME)
+ref_fb_idx = cm->gld_fb_idx;
+else if (ref_frame_flag == VP8_ALTR_FRAME)
+ref_fb_idx = cm->alt_fb_idx;
+else
+return -1;
+vp8_yv12_copy_frame(sd, &cm->yv12_fb[ref_fb_idx]);
+return 0;
+}
+int vp8_update_entropy(VP8_COMP *cpi, int update)
+{
+VP8_COMMON *cm = &cpi->common;
+cm->refresh_entropy_probs = update;
+return 0;
+}
+#if OUTPUT_YUV_SRC
+void vp8_write_yuv_frame(const char *name, YV12_BUFFER_CONFIG *s)
+{
+FILE *yuv_file = fopen(name, "ab");
+unsigned char *src = s->y_buffer;
+int h = s->y_height;
+do
+{
+fwrite(src, s->y_width, 1,  yuv_file);
+src += s->y_stride;
+}
+while (--h);
+src = s->u_buffer;
+h = s->uv_height;
+do
+{
+fwrite(src, s->uv_width, 1,  yuv_file);
+src += s->uv_stride;
+}
+while (--h);
+src = s->v_buffer;
+h = s->uv_height;
+do
+{
+fwrite(src, s->uv_width, 1, yuv_file);
+src += s->uv_stride;
+}
+while (--h);
+fclose(yuv_file);
+}
+#endif
+static void scale_and_extend_source(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi)
+{
+VP8_COMMON *cm = &cpi->common;
+/* are we resizing the image */
+if (cm->horiz_scale != 0 || cm->vert_scale != 0)
+{
+#if CONFIG_SPATIAL_RESAMPLING
+int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
+int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
+int tmp_height;
+if (cm->vert_scale == 3)
+tmp_height = 9;
+else
+tmp_height = 11;
+Scale2Ratio(cm->horiz_scale, &hr, &hs);
+Scale2Ratio(cm->vert_scale, &vr, &vs);
+vpx_scale_frame(sd, &cpi->scaled_source, cm->temp_scale_frame.y_buffer,
+tmp_height, hs, hr, vs, vr, 0);
+vp8_yv12_extend_frame_borders(&cpi->scaled_source);
+cpi->Source = &cpi->scaled_source;
+#endif
+}
+else
+cpi->Source = sd;
+}
+static int resize_key_frame(VP8_COMP *cpi)
+{
+#if CONFIG_SPATIAL_RESAMPLING
+VP8_COMMON *cm = &cpi->common;
+/* Do we need to apply resampling for one pass cbr.
+* In one pass this is more limited than in two pass cbr
+* The test and any change is only made one per key frame sequence
+*/
+if (cpi->oxcf.allow_spatial_resampling && (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER))
+{
+int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
+int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
+int new_width, new_height;
+/* If we are below the resample DOWN watermark then scale down a
+* notch.
+*/
+if (cpi->buffer_level < (cpi->oxcf.resample_down_water_mark * cpi->oxcf.optimal_buffer_level / 100))
+{
+cm->horiz_scale = (cm->horiz_scale < ONETWO) ? cm->horiz_scale + 1 : ONETWO;
+cm->vert_scale = (cm->vert_scale < ONETWO) ? cm->vert_scale + 1 : ONETWO;
+}
+/* Should we now start scaling back up */
+else if (cpi->buffer_level > (cpi->oxcf.resample_up_water_mark * cpi->oxcf.optimal_buffer_level / 100))
+{
+cm->horiz_scale = (cm->horiz_scale > NORMAL) ? cm->horiz_scale - 1 : NORMAL;
+cm->vert_scale = (cm->vert_scale > NORMAL) ? cm->vert_scale - 1 : NORMAL;
+}
+/* Get the new hieght and width */
+Scale2Ratio(cm->horiz_scale, &hr, &hs);
+Scale2Ratio(cm->vert_scale, &vr, &vs);
+new_width = ((hs - 1) + (cpi->oxcf.Width * hr)) / hs;
+new_height = ((vs - 1) + (cpi->oxcf.Height * vr)) / vs;
+/* If the image size has changed we need to reallocate the buffers
+* and resample the source image
+*/
+if ((cm->Width != new_width) || (cm->Height != new_height))
+{
+cm->Width = new_width;
+cm->Height = new_height;
+vp8_alloc_compressor_data(cpi);
+scale_and_extend_source(cpi->un_scaled_source, cpi);
+return 1;
+}
+}
+#endif
+return 0;
+}
+static void update_alt_ref_frame_stats(VP8_COMP *cpi)
+{
+VP8_COMMON *cm = &cpi->common;
+/* Select an interval before next GF or altref */
+if (!cpi->auto_gold)
+cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
+if ((cpi->pass != 2) && cpi->frames_till_gf_update_due)
+{
+cpi->current_gf_interval = cpi->frames_till_gf_update_due;
+/* Set the bits per frame that we should try and recover in
+* subsequent inter frames to account for the extra GF spend...
+* note that his does not apply for GF updates that occur
+* coincident with a key frame as the extra cost of key frames is
+* dealt with elsewhere.
+*/
+cpi->gf_overspend_bits += cpi->projected_frame_size;
+cpi->non_gf_bitrate_adjustment = cpi->gf_overspend_bits / cpi->frames_till_gf_update_due;
+}
+/* Update data structure that monitors level of reference to last GF */
+vpx_memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
+cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
+/* this frame refreshes means next frames don't unless specified by user */
+cpi->frames_since_golden = 0;
+/* Clear the alternate reference update pending flag. */
+cpi->source_alt_ref_pending = 0;
+/* Set the alternate reference frame active flag */
+cpi->source_alt_ref_active = 1;
+}
+static void update_golden_frame_stats(VP8_COMP *cpi)
+{
+VP8_COMMON *cm = &cpi->common;
+/* Update the Golden frame usage counts. */
+if (cm->refresh_golden_frame)
+{
+/* Select an interval before next GF */
+if (!cpi->auto_gold)
+cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
+if ((cpi->pass != 2) && (cpi->frames_till_gf_update_due > 0))
+{
+cpi->current_gf_interval = cpi->frames_till_gf_update_due;
+/* Set the bits per frame that we should try and recover in
+* subsequent inter frames to account for the extra GF spend...
+* note that his does not apply for GF updates that occur
+* coincident with a key frame as the extra cost of key frames
+* is dealt with elsewhere.
+*/
+if ((cm->frame_type != KEY_FRAME) && !cpi->source_alt_ref_active)
+{
+/* Calcluate GF bits to be recovered
+* Projected size - av frame bits available for inter
+* frames for clip as a whole
+*/
+cpi->gf_overspend_bits += (cpi->projected_frame_size - cpi->inter_frame_target);
+}
+cpi->non_gf_bitrate_adjustment = cpi->gf_overspend_bits / cpi->frames_till_gf_update_due;
+}
+/* Update data structure that monitors level of reference to last GF */
+vpx_memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
+cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
+/* this frame refreshes means next frames don't unless specified by
+* user
+*/
+cm->refresh_golden_frame = 0;
+cpi->frames_since_golden = 0;
+cpi->recent_ref_frame_usage[INTRA_FRAME] = 1;
+cpi->recent_ref_frame_usage[LAST_FRAME] = 1;
+cpi->recent_ref_frame_usage[GOLDEN_FRAME] = 1;
+cpi->recent_ref_frame_usage[ALTREF_FRAME] = 1;
+/* ******** Fixed Q test code only ************ */
+/* If we are going to use the ALT reference for the next group of
+* frames set a flag to say so.
+*/
+if (cpi->oxcf.fixed_q >= 0 &&
+cpi->oxcf.play_alternate && !cpi->common.refresh_alt_ref_frame)
+{
+cpi->source_alt_ref_pending = 1;
+cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+}
+if (!cpi->source_alt_ref_pending)
+cpi->source_alt_ref_active = 0;
+/* Decrement count down till next gf */
+if (cpi->frames_till_gf_update_due > 0)
+cpi->frames_till_gf_update_due--;
+}
+else if (!cpi->common.refresh_alt_ref_frame)
+{
+/* Decrement count down till next gf */
+if (cpi->frames_till_gf_update_due > 0)
+cpi->frames_till_gf_update_due--;
+if (cpi->frames_till_alt_ref_frame)
+cpi->frames_till_alt_ref_frame --;
+cpi->frames_since_golden ++;
+if (cpi->frames_since_golden > 1)
+{
+cpi->recent_ref_frame_usage[INTRA_FRAME] +=
+cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME];
+cpi->recent_ref_frame_usage[LAST_FRAME] +=
+cpi->mb.count_mb_ref_frame_usage[LAST_FRAME];
+cpi->recent_ref_frame_usage[GOLDEN_FRAME] +=
+cpi->mb.count_mb_ref_frame_usage[GOLDEN_FRAME];
+cpi->recent_ref_frame_usage[ALTREF_FRAME] +=
+cpi->mb.count_mb_ref_frame_usage[ALTREF_FRAME];
+}
+}
+}
+/* This function updates the reference frame probability estimates that
+* will be used during mode selection
+*/
+static void update_rd_ref_frame_probs(VP8_COMP *cpi)
+{
+VP8_COMMON *cm = &cpi->common;
+const int *const rfct = cpi->mb.count_mb_ref_frame_usage;
+const int rf_intra = rfct[INTRA_FRAME];
+const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME];
+if (cm->frame_type == KEY_FRAME)
+{
+cpi->prob_intra_coded = 255;
+cpi->prob_last_coded  = 128;
+cpi->prob_gf_coded  = 128;
+}
+else if (!(rf_intra + rf_inter))
+{
+cpi->prob_intra_coded = 63;
+cpi->prob_last_coded  = 128;
+cpi->prob_gf_coded    = 128;
+}
+/* update reference frame costs since we can do better than what we got
+* last frame.
+*/
+if (cpi->oxcf.number_of_layers == 1)
+{
+if (cpi->common.refresh_alt_ref_frame)
+{
+cpi->prob_intra_coded += 40;
+if (cpi->prob_intra_coded > 255)
+cpi->prob_intra_coded = 255;
+cpi->prob_last_coded = 200;
+cpi->prob_gf_coded = 1;
+}
+else if (cpi->frames_since_golden == 0)
+{
+cpi->prob_last_coded = 214;
+}
+else if (cpi->frames_since_golden == 1)
+{
+cpi->prob_last_coded = 192;
+cpi->prob_gf_coded = 220;
+}
+else if (cpi->source_alt_ref_active)
+{
+cpi->prob_gf_coded -= 20;
+if (cpi->prob_gf_coded < 10)
+cpi->prob_gf_coded = 10;
+}
+if (!cpi->source_alt_ref_active)
+cpi->prob_gf_coded = 255;
+}
+}
+/* 1 = key, 0 = inter */
+static int decide_key_frame(VP8_COMP *cpi)
+{
+VP8_COMMON *cm = &cpi->common;
+int code_key_frame = 0;
+cpi->kf_boost = 0;
+if (cpi->Speed > 11)
+return 0;
+/* Clear down mmx registers */
+vp8_clear_system_state();
+if ((cpi->compressor_speed == 2) && (cpi->Speed >= 5) && (cpi->sf.RD == 0))
+{
+double change = 1.0 * abs((int)(cpi->mb.intra_error -
+cpi->last_intra_error)) / (1 + cpi->last_intra_error);
+double change2 = 1.0 * abs((int)(cpi->mb.prediction_error -
+cpi->last_prediction_error)) / (1 + cpi->last_prediction_error);
+double minerror = cm->MBs * 256;
+cpi->last_intra_error = cpi->mb.intra_error;
+cpi->last_prediction_error = cpi->mb.prediction_error;
+if (10 * cpi->mb.intra_error / (1 + cpi->mb.prediction_error) < 15
+&& cpi->mb.prediction_error > minerror
+&& (change > .25 || change2 > .25))
+{
+/*(change > 1.4 || change < .75)&& cpi->this_frame_percent_intra > cpi->last_frame_percent_intra + 3*/
+return 1;
+}
+return 0;
+}
+/* If the following are true we might as well code a key frame */
+if (((cpi->this_frame_percent_intra == 100) &&
+(cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra + 2))) ||
+((cpi->this_frame_percent_intra > 95) &&
+(cpi->this_frame_percent_intra >= (cpi->last_frame_percent_intra + 5))))
+{
+code_key_frame = 1;
+}
+/* in addition if the following are true and this is not a golden frame
+* then code a key frame Note that on golden frames there often seems
+* to be a pop in intra useage anyway hence this restriction is
+* designed to prevent spurious key frames. The Intra pop needs to be
+* investigated.
+*/
+else if (((cpi->this_frame_percent_intra > 60) &&
+(cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra * 2))) ||
+((cpi->this_frame_percent_intra > 75) &&
+(cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra * 3 / 2))) ||
+((cpi->this_frame_percent_intra > 90) &&
+(cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra + 10))))
+{
+if (!cm->refresh_golden_frame)
+code_key_frame = 1;
+}
+return code_key_frame;
+}
+#if !(CONFIG_REALTIME_ONLY)
+static void Pass1Encode(VP8_COMP *cpi, unsigned long *size, unsigned char *dest, unsigned int *frame_flags)
+{
+(void) size;
+(void) dest;
+(void) frame_flags;
+vp8_set_quantizer(cpi, 26);
+vp8_first_pass(cpi);
+}
+#endif
+#if 0
+void write_cx_frame_to_file(YV12_BUFFER_CONFIG *frame, int this_frame)
+{
+/* write the frame */
+FILE *yframe;
+int i;
+char filename[255];
+sprintf(filename, "cx\\y%04d.raw", this_frame);
+yframe = fopen(filename, "wb");
+for (i = 0; i < frame->y_height; i++)
+fwrite(frame->y_buffer + i * frame->y_stride, frame->y_width, 1, yframe);
+fclose(yframe);
+sprintf(filename, "cx\\u%04d.raw", this_frame);
+yframe = fopen(filename, "wb");
+for (i = 0; i < frame->uv_height; i++)
+fwrite(frame->u_buffer + i * frame->uv_stride, frame->uv_width, 1, yframe);
+fclose(yframe);
+sprintf(filename, "cx\\v%04d.raw", this_frame);
+yframe = fopen(filename, "wb");
+for (i = 0; i < frame->uv_height; i++)
+fwrite(frame->v_buffer + i * frame->uv_stride, frame->uv_width, 1, yframe);
+fclose(yframe);
+}
+#endif
+/* return of 0 means drop frame */
+/* Function to test for conditions that indeicate we should loop
+* back and recode a frame.
+*/
+static int recode_loop_test( VP8_COMP *cpi,
+int high_limit, int low_limit,
+int q, int maxq, int minq )
+{
+int force_recode = 0;
+VP8_COMMON *cm = &cpi->common;
+/* Is frame recode allowed at all
+* Yes if either recode mode 1 is selected or mode two is selcted
+* and the frame is a key frame. golden frame or alt_ref_frame
+*/
+if ( (cpi->sf.recode_loop == 1) ||
+( (cpi->sf.recode_loop == 2) &&
+( (cm->frame_type == KEY_FRAME) ||
+cm->refresh_golden_frame ||
+cm->refresh_alt_ref_frame ) ) )
+{
+/* General over and under shoot tests */
+if ( ((cpi->projected_frame_size > high_limit) && (q < maxq)) ||
+((cpi->projected_frame_size < low_limit) && (q > minq)) )
+{
+force_recode = 1;
+}
+/* Special Constrained quality tests */
+else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
+{
+/* Undershoot and below auto cq level */
+if ( (q > cpi->cq_target_quality) &&
+(cpi->projected_frame_size <
+((cpi->this_frame_target * 7) >> 3)))
+{
+force_recode = 1;
+}
+/* Severe undershoot and between auto and user cq level */
+else if ( (q > cpi->oxcf.cq_level) &&
+(cpi->projected_frame_size < cpi->min_frame_bandwidth) &&
+(cpi->active_best_quality > cpi->oxcf.cq_level))
+{
+force_recode = 1;
+cpi->active_best_quality = cpi->oxcf.cq_level;
+}
+}
+}
+return force_recode;
+}
+static void update_reference_frames(VP8_COMP *cpi)
+{
+VP8_COMMON *cm = &cpi->common;
+YV12_BUFFER_CONFIG *yv12_fb = cm->yv12_fb;
+/* At this point the new frame has been encoded.
+* If any buffer copy / swapping is signaled it should be done here.
+*/
+if (cm->frame_type == KEY_FRAME)
+{
+yv12_fb[cm->new_fb_idx].flags |= VP8_GOLD_FRAME | VP8_ALTR_FRAME ;
+yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
+yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
+cm->alt_fb_idx = cm->gld_fb_idx = cm->new_fb_idx;
+#if CONFIG_MULTI_RES_ENCODING
+cpi->current_ref_frames[GOLDEN_FRAME] = cm->current_video_frame;
+cpi->current_ref_frames[ALTREF_FRAME] = cm->current_video_frame;
+#endif
+}
+else    /* For non key frames */
+{
+if (cm->refresh_alt_ref_frame)
+{
+assert(!cm->copy_buffer_to_arf);
+cm->yv12_fb[cm->new_fb_idx].flags |= VP8_ALTR_FRAME;
+cm->yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
+cm->alt_fb_idx = cm->new_fb_idx;
+#if CONFIG_MULTI_RES_ENCODING
+cpi->current_ref_frames[ALTREF_FRAME] = cm->current_video_frame;
+#endif
+}
+else if (cm->copy_buffer_to_arf)
+{
+assert(!(cm->copy_buffer_to_arf & ~0x3));
+if (cm->copy_buffer_to_arf == 1)
+{
+if(cm->alt_fb_idx != cm->lst_fb_idx)
+{
+yv12_fb[cm->lst_fb_idx].flags |= VP8_ALTR_FRAME;
+yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
+cm->alt_fb_idx = cm->lst_fb_idx;
+#if CONFIG_MULTI_RES_ENCODING
+cpi->current_ref_frames[ALTREF_FRAME] =
+cpi->current_ref_frames[LAST_FRAME];
+#endif
+}
+}
+else /* if (cm->copy_buffer_to_arf == 2) */
+{
+if(cm->alt_fb_idx != cm->gld_fb_idx)
+{
+yv12_fb[cm->gld_fb_idx].flags |= VP8_ALTR_FRAME;
+yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
+cm->alt_fb_idx = cm->gld_fb_idx;
+#if CONFIG_MULTI_RES_ENCODING
+cpi->current_ref_frames[ALTREF_FRAME] =
+cpi->current_ref_frames[GOLDEN_FRAME];
+#endif
+}
+}
+}
+if (cm->refresh_golden_frame)
+{
+assert(!cm->copy_buffer_to_gf);
+cm->yv12_fb[cm->new_fb_idx].flags |= VP8_GOLD_FRAME;
+cm->yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
+cm->gld_fb_idx = cm->new_fb_idx;
+#if CONFIG_MULTI_RES_ENCODING
+cpi->current_ref_frames[GOLDEN_FRAME] = cm->current_video_frame;
+#endif
+}
+else if (cm->copy_buffer_to_gf)
+{
+assert(!(cm->copy_buffer_to_arf & ~0x3));
+if (cm->copy_buffer_to_gf == 1)
+{
+if(cm->gld_fb_idx != cm->lst_fb_idx)
+{
+yv12_fb[cm->lst_fb_idx].flags |= VP8_GOLD_FRAME;
+yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
+cm->gld_fb_idx = cm->lst_fb_idx;
+#if CONFIG_MULTI_RES_ENCODING
+cpi->current_ref_frames[GOLDEN_FRAME] =
+cpi->current_ref_frames[LAST_FRAME];
+#endif
+}
+}
+else /* if (cm->copy_buffer_to_gf == 2) */
+{
+if(cm->alt_fb_idx != cm->gld_fb_idx)
+{
+yv12_fb[cm->alt_fb_idx].flags |= VP8_GOLD_FRAME;
+yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
+cm->gld_fb_idx = cm->alt_fb_idx;
+#if CONFIG_MULTI_RES_ENCODING
+cpi->current_ref_frames[GOLDEN_FRAME] =
+cpi->current_ref_frames[ALTREF_FRAME];
+#endif
+}
+}
+}
+}
+if (cm->refresh_last_frame)
+{
+cm->yv12_fb[cm->new_fb_idx].flags |= VP8_LAST_FRAME;
+cm->yv12_fb[cm->lst_fb_idx].flags &= ~VP8_LAST_FRAME;
+cm->lst_fb_idx = cm->new_fb_idx;
+#if CONFIG_MULTI_RES_ENCODING
+cpi->current_ref_frames[LAST_FRAME] = cm->current_video_frame;
+#endif
+}
+#if CONFIG_TEMPORAL_DENOISING
+if (cpi->oxcf.noise_sensitivity)
+{
+/* we shouldn't have to keep multiple copies as we know in advance which
+* buffer we should start - for now to get something up and running
+* I've chosen to copy the buffers
+*/
+if (cm->frame_type == KEY_FRAME)
+{
+int i;
+vp8_yv12_copy_frame(
+cpi->Source,
+&cpi->denoiser.yv12_running_avg[LAST_FRAME]);
+vp8_yv12_extend_frame_borders(
+&cpi->denoiser.yv12_running_avg[LAST_FRAME]);
+for (i = 2; i < MAX_REF_FRAMES - 1; i++)
+vp8_yv12_copy_frame(
+&cpi->denoiser.yv12_running_avg[LAST_FRAME],
+&cpi->denoiser.yv12_running_avg[i]);
+}
+else /* For non key frames */
+{
+vp8_yv12_extend_frame_borders(
+&cpi->denoiser.yv12_running_avg[INTRA_FRAME]);
+if (cm->refresh_alt_ref_frame || cm->copy_buffer_to_arf)
+{
+vp8_yv12_copy_frame(
+&cpi->denoiser.yv12_running_avg[INTRA_FRAME],
+&cpi->denoiser.yv12_running_avg[ALTREF_FRAME]);
+}
+if (cm->refresh_golden_frame || cm->copy_buffer_to_gf)
+{
+vp8_yv12_copy_frame(
+&cpi->denoiser.yv12_running_avg[INTRA_FRAME],
+&cpi->denoiser.yv12_running_avg[GOLDEN_FRAME]);
+}
+if(cm->refresh_last_frame)
+{
+vp8_yv12_copy_frame(
+&cpi->denoiser.yv12_running_avg[INTRA_FRAME],
+&cpi->denoiser.yv12_running_avg[LAST_FRAME]);
+}
+}
+}
+#endif
+}
+void vp8_loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm)
+{
+const FRAME_TYPE frame_type = cm->frame_type;
+if (cm->no_lpf)
+{
+cm->filter_level = 0;
+}
+else
+{
+struct vpx_usec_timer timer;
+vp8_clear_system_state();
+vpx_usec_timer_start(&timer);
+if (cpi->sf.auto_filter == 0)
+vp8cx_pick_filter_level_fast(cpi->Source, cpi);
+else
+vp8cx_pick_filter_level(cpi->Source, cpi);
+if (cm->filter_level > 0)
+{
+vp8cx_set_alt_lf_level(cpi, cm->filter_level);
+}
+vpx_usec_timer_mark(&timer);
+cpi->time_pick_lpf += vpx_usec_timer_elapsed(&timer);
+}
+#if CONFIG_MULTITHREAD
+if (cpi->b_multi_threaded)
+sem_post(&cpi->h_event_end_lpf); /* signal that we have set filter_level */
+#endif
+if (cm->filter_level > 0)
+{
+vp8_loop_filter_frame(cm, &cpi->mb.e_mbd, frame_type);
+}
+vp8_yv12_extend_frame_borders(cm->frame_to_show);
+}
+static void encode_frame_to_data_rate
+(
+VP8_COMP *cpi,
+unsigned long *size,
+unsigned char *dest,
+unsigned char* dest_end,
+unsigned int *frame_flags
+)
+{
+int Q;
+int frame_over_shoot_limit;
+int frame_under_shoot_limit;
+int Loop = 0;
+int loop_count;
+VP8_COMMON *cm = &cpi->common;
+int active_worst_qchanged = 0;
+#if !(CONFIG_REALTIME_ONLY)
+int q_low;
+int q_high;
+int zbin_oq_high;
+int zbin_oq_low = 0;
+int top_index;
+int bottom_index;
+int overshoot_seen = 0;
+int undershoot_seen = 0;
+#endif
+int drop_mark = (int)(cpi->oxcf.drop_frames_water_mark *
+cpi->oxcf.optimal_buffer_level / 100);
+int drop_mark75 = drop_mark * 2 / 3;
+int drop_mark50 = drop_mark / 4;
+int drop_mark25 = drop_mark / 8;
+/* Clear down mmx registers to allow floating point in what follows */
+vp8_clear_system_state();
+#if CONFIG_MULTITHREAD
+/*  wait for the last picture loopfilter thread done */
+if (cpi->b_lpf_running)
+{
+sem_wait(&cpi->h_event_end_lpf);
+cpi->b_lpf_running = 0;
+}
+#endif
+if(cpi->force_next_frame_intra)
+{
+cm->frame_type = KEY_FRAME;  /* delayed intra frame */
+cpi->force_next_frame_intra = 0;
+}
+/* For an alt ref frame in 2 pass we skip the call to the second pass
+* function that sets the target bandwidth
+*/
+#if !(CONFIG_REALTIME_ONLY)
+if (cpi->pass == 2)
+{
+if (cpi->common.refresh_alt_ref_frame)
+{
+/* Per frame bit target for the alt ref frame */
+cpi->per_frame_bandwidth = cpi->twopass.gf_bits;
+/* per second target bitrate */
+cpi->target_bandwidth = (int)(cpi->twopass.gf_bits *
+cpi->output_framerate);
+}
+}
+else
+#endif
+cpi->per_frame_bandwidth  = (int)(cpi->target_bandwidth / cpi->output_framerate);
+/* Default turn off buffer to buffer copying */
+cm->copy_buffer_to_gf = 0;
+cm->copy_buffer_to_arf = 0;
+/* Clear zbin over-quant value and mode boost values. */
+cpi->mb.zbin_over_quant = 0;
+cpi->mb.zbin_mode_boost = 0;
+/* Enable or disable mode based tweaking of the zbin
+* For 2 Pass Only used where GF/ARF prediction quality
+* is above a threshold
+*/
+cpi->mb.zbin_mode_boost_enabled = 1;
+if (cpi->pass == 2)
+{
+if ( cpi->gfu_boost <= 400 )
+{
+cpi->mb.zbin_mode_boost_enabled = 0;
+}
+}
+/* Current default encoder behaviour for the altref sign bias */
+if (cpi->source_alt_ref_active)
+cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 1;
+else
+cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 0;
+/* Check to see if a key frame is signaled
+* For two pass with auto key frame enabled cm->frame_type may already
+* be set, but not for one pass.
+*/
+if ((cm->current_video_frame == 0) ||
+(cm->frame_flags & FRAMEFLAGS_KEY) ||
+(cpi->oxcf.auto_key && (cpi->frames_since_key % cpi->key_frame_frequency == 0)))
+{
+/* Key frame from VFW/auto-keyframe/first frame */
+cm->frame_type = KEY_FRAME;
+}
+#if CONFIG_MULTI_RES_ENCODING
+/* In multi-resolution encoding, frame_type is decided by lowest-resolution
+* encoder. Same frame_type is adopted while encoding at other resolution.
+*/
+if (cpi->oxcf.mr_encoder_id)
+{
+LOWER_RES_FRAME_INFO* low_res_frame_info
+= (LOWER_RES_FRAME_INFO*)cpi->oxcf.mr_low_res_mode_info;
+cm->frame_type = low_res_frame_info->frame_type;
+if(cm->frame_type != KEY_FRAME)
+{
+cpi->mr_low_res_mv_avail = 1;
+cpi->mr_low_res_mv_avail &= !(low_res_frame_info->is_frame_dropped);
+if (cpi->ref_frame_flags & VP8_LAST_FRAME)
+cpi->mr_low_res_mv_avail &= (cpi->current_ref_frames[LAST_FRAME]
+== low_res_frame_info->low_res_ref_frames[LAST_FRAME]);
+if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
+cpi->mr_low_res_mv_avail &= (cpi->current_ref_frames[GOLDEN_FRAME]
+== low_res_frame_info->low_res_ref_frames[GOLDEN_FRAME]);
+if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
+cpi->mr_low_res_mv_avail &= (cpi->current_ref_frames[ALTREF_FRAME]
+== low_res_frame_info->low_res_ref_frames[ALTREF_FRAME]);
+}
+}
+#endif
+/* Set various flags etc to special state if it is a key frame */
+if (cm->frame_type == KEY_FRAME)
+{
+int i;
+// Set the loop filter deltas and segmentation map update
+setup_features(cpi);
+/* The alternate reference frame cannot be active for a key frame */
+cpi->source_alt_ref_active = 0;
+/* Reset the RD threshold multipliers to default of * 1 (128) */
+for (i = 0; i < MAX_MODES; i++)
+{
+cpi->mb.rd_thresh_mult[i] = 128;
+}
+}
+#if 0
+/* Experimental code for lagged compress and one pass
+* Initialise one_pass GF frames stats
+* Update stats used for GF selection
+*/
+{
+cpi->one_pass_frame_index = cm->current_video_frame % MAX_LAG_BUFFERS;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frames_so_far = 0;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_intra_error = 0.0;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_coded_error = 0.0;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_pcnt_inter = 0.0;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_pcnt_motion = 0.0;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvr = 0.0;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvr_abs = 0.0;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvc = 0.0;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvc_abs = 0.0;
+}
+#endif
+update_rd_ref_frame_probs(cpi);
+if (cpi->drop_frames_allowed)
+{
+/* The reset to decimation 0 is only done here for one pass.
+* Once it is set two pass leaves decimation on till the next kf.
+*/
+if ((cpi->buffer_level > drop_mark) && (cpi->decimation_factor > 0))
+cpi->decimation_factor --;
+if (cpi->buffer_level > drop_mark75 && cpi->decimation_factor > 0)
+cpi->decimation_factor = 1;
+else if (cpi->buffer_level < drop_mark25 && (cpi->decimation_factor == 2 || cpi->decimation_factor == 3))
+{
+cpi->decimation_factor = 3;
+}
+else if (cpi->buffer_level < drop_mark50 && (cpi->decimation_factor == 1 || cpi->decimation_factor == 2))
+{
+cpi->decimation_factor = 2;
+}
+else if (cpi->buffer_level < drop_mark75 && (cpi->decimation_factor == 0 || cpi->decimation_factor == 1))
+{
+cpi->decimation_factor = 1;
+}
+}
+/* The following decimates the frame rate according to a regular
+* pattern (i.e. to 1/2 or 2/3 frame rate) This can be used to help
+* prevent buffer under-run in CBR mode. Alternatively it might be
+* desirable in some situations to drop frame rate but throw more bits
+* at each frame.
+*
+* Note that dropping a key frame can be problematic if spatial
+* resampling is also active
+*/
+if (cpi->decimation_factor > 0)
+{
+switch (cpi->decimation_factor)
+{
+case 1:
+cpi->per_frame_bandwidth  = cpi->per_frame_bandwidth * 3 / 2;
+break;
+case 2:
+cpi->per_frame_bandwidth  = cpi->per_frame_bandwidth * 5 / 4;
+break;
+case 3:
+cpi->per_frame_bandwidth  = cpi->per_frame_bandwidth * 5 / 4;
+break;
+}
+/* Note that we should not throw out a key frame (especially when
+* spatial resampling is enabled).
+*/
+if (cm->frame_type == KEY_FRAME)
+{
+cpi->decimation_count = cpi->decimation_factor;
+}
+else if (cpi->decimation_count > 0)
+{
+cpi->decimation_count --;
+cpi->bits_off_target += cpi->av_per_frame_bandwidth;
+if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size)
+cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
+#if CONFIG_MULTI_RES_ENCODING
+vp8_store_drop_frame_info(cpi);
+#endif
+cm->current_video_frame++;
+cpi->frames_since_key++;
+// We advance the temporal pattern for dropped frames.
+cpi->temporal_pattern_counter++;
+#if CONFIG_INTERNAL_STATS
+cpi->count ++;
+#endif
+cpi->buffer_level = cpi->bits_off_target;
+if (cpi->oxcf.number_of_layers > 1)
+{
+unsigned int i;
+/* Propagate bits saved by dropping the frame to higher
+* layers
+*/
+for (i=cpi->current_layer+1; i<cpi->oxcf.number_of_layers; i++)
+{
+LAYER_CONTEXT *lc = &cpi->layer_context[i];
+lc->bits_off_target += (int)(lc->target_bandwidth /
+lc->framerate);
+if (lc->bits_off_target > lc->maximum_buffer_size)
+lc->bits_off_target = lc->maximum_buffer_size;
+lc->buffer_level = lc->bits_off_target;
+}
+}
+return;
+}
+else
+cpi->decimation_count = cpi->decimation_factor;
+}
+else
+cpi->decimation_count = 0;
+/* Decide how big to make the frame */
+if (!vp8_pick_frame_size(cpi))
+{
+/*TODO: 2 drop_frame and return code could be put together. */
+#if CONFIG_MULTI_RES_ENCODING
+vp8_store_drop_frame_info(cpi);
+#endif
+cm->current_video_frame++;
+cpi->frames_since_key++;
+// We advance the temporal pattern for dropped frames.
+cpi->temporal_pattern_counter++;
+return;
+}
+/* Reduce active_worst_allowed_q for CBR if our buffer is getting too full.
+* This has a knock on effect on active best quality as well.
+* For CBR if the buffer reaches its maximum level then we can no longer
+* save up bits for later frames so we might as well use them up
+* on the current frame.
+*/
+if ((cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
+(cpi->buffer_level >= cpi->oxcf.optimal_buffer_level) && cpi->buffered_mode)
+{
+/* Max adjustment is 1/4 */
+int Adjustment = cpi->active_worst_quality / 4;
+if (Adjustment)
+{
+int buff_lvl_step;
+if (cpi->buffer_level < cpi->oxcf.maximum_buffer_size)
+{
+buff_lvl_step = (int)
+((cpi->oxcf.maximum_buffer_size -
+cpi->oxcf.optimal_buffer_level) /
+Adjustment);
+if (buff_lvl_step)
+Adjustment = (int)
+((cpi->buffer_level -
+cpi->oxcf.optimal_buffer_level) /
+buff_lvl_step);
+else
+Adjustment = 0;
+}
+cpi->active_worst_quality -= Adjustment;
+if(cpi->active_worst_quality < cpi->active_best_quality)
+cpi->active_worst_quality = cpi->active_best_quality;
+}
+}
+/* Set an active best quality and if necessary active worst quality
+* There is some odd behavior for one pass here that needs attention.
+*/
+if ( (cpi->pass == 2) || (cpi->ni_frames > 150))
+{
+vp8_clear_system_state();
+Q = cpi->active_worst_quality;
+if ( cm->frame_type == KEY_FRAME )
+{
+if ( cpi->pass == 2 )
+{
+if (cpi->gfu_boost > 600)
+cpi->active_best_quality = kf_low_motion_minq[Q];
+else
+cpi->active_best_quality = kf_high_motion_minq[Q];
+/* Special case for key frames forced because we have reached
+* the maximum key frame interval. Here force the Q to a range
+* based on the ambient Q to reduce the risk of popping
+*/
+if ( cpi->this_key_frame_forced )
+{
+if ( cpi->active_best_quality > cpi->avg_frame_qindex * 7/8)
+cpi->active_best_quality = cpi->avg_frame_qindex * 7/8;
+else if ( cpi->active_best_quality < cpi->avg_frame_qindex >> 2 )
+cpi->active_best_quality = cpi->avg_frame_qindex >> 2;
+}
+}
+/* One pass more conservative */
+else
+cpi->active_best_quality = kf_high_motion_minq[Q];
+}
+else if (cpi->oxcf.number_of_layers==1 &&
+(cm->refresh_golden_frame || cpi->common.refresh_alt_ref_frame))
+{
+/* Use the lower of cpi->active_worst_quality and recent
+* average Q as basis for GF/ARF Q limit unless last frame was
+* a key frame.
+*/
+if ( (cpi->frames_since_key > 1) &&
+(cpi->avg_frame_qindex < cpi->active_worst_quality) )
+{
+Q = cpi->avg_frame_qindex;
+}
+/* For constrained quality dont allow Q less than the cq level */
+if ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
+(Q < cpi->cq_target_quality) )
+{
+Q = cpi->cq_target_quality;
+}
+if ( cpi->pass == 2 )
+{
+if ( cpi->gfu_boost > 1000 )
+cpi->active_best_quality = gf_low_motion_minq[Q];
+else if ( cpi->gfu_boost < 400 )
+cpi->active_best_quality = gf_high_motion_minq[Q];
+else
+cpi->active_best_quality = gf_mid_motion_minq[Q];
+/* Constrained quality use slightly lower active best. */
+if ( cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY )
+{
+cpi->active_best_quality =
+cpi->active_best_quality * 15/16;
+}
+}
+/* One pass more conservative */
+else
+cpi->active_best_quality = gf_high_motion_minq[Q];
+}
+else
+{
+cpi->active_best_quality = inter_minq[Q];
+/* For the constant/constrained quality mode we dont want
+* q to fall below the cq level.
+*/
+if ((cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
+(cpi->active_best_quality < cpi->cq_target_quality) )
+{
+/* If we are strongly undershooting the target rate in the last
+* frames then use the user passed in cq value not the auto
+* cq value.
+*/
+if ( cpi->rolling_actual_bits < cpi->min_frame_bandwidth )
+cpi->active_best_quality = cpi->oxcf.cq_level;
+else
+cpi->active_best_quality = cpi->cq_target_quality;
+}
+}
+/* If CBR and the buffer is as full then it is reasonable to allow
+* higher quality on the frames to prevent bits just going to waste.
+*/
+if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+{
+/* Note that the use of >= here elliminates the risk of a devide
+* by 0 error in the else if clause
+*/
+if (cpi->buffer_level >= cpi->oxcf.maximum_buffer_size)
+cpi->active_best_quality = cpi->best_quality;
+else if (cpi->buffer_level > cpi->oxcf.optimal_buffer_level)
+{
+int Fraction = (int)
+(((cpi->buffer_level - cpi->oxcf.optimal_buffer_level) * 128)
+/ (cpi->oxcf.maximum_buffer_size -
+cpi->oxcf.optimal_buffer_level));
+int min_qadjustment = ((cpi->active_best_quality -
+cpi->best_quality) * Fraction) / 128;
+cpi->active_best_quality -= min_qadjustment;
+}
+}
+}
+/* Make sure constrained quality mode limits are adhered to for the first
+* few frames of one pass encodes
+*/
+else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
+{
+if ( (cm->frame_type == KEY_FRAME) ||
+cm->refresh_golden_frame || cpi->common.refresh_alt_ref_frame )
+{
+cpi->active_best_quality = cpi->best_quality;
+}
+else if (cpi->active_best_quality < cpi->cq_target_quality)
+{
+cpi->active_best_quality = cpi->cq_target_quality;
+}
+}
+/* Clip the active best and worst quality values to limits */
+if (cpi->active_worst_quality > cpi->worst_quality)
+cpi->active_worst_quality = cpi->worst_quality;
+if (cpi->active_best_quality < cpi->best_quality)
+cpi->active_best_quality = cpi->best_quality;
+if ( cpi->active_worst_quality < cpi->active_best_quality )
+cpi->active_worst_quality = cpi->active_best_quality;
+/* Determine initial Q to try */
+Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+#if !(CONFIG_REALTIME_ONLY)
+/* Set highest allowed value for Zbin over quant */
+if (cm->frame_type == KEY_FRAME)
+zbin_oq_high = 0;
+else if ((cpi->oxcf.number_of_layers == 1) && ((cm->refresh_alt_ref_frame ||
+(cm->refresh_golden_frame && !cpi->source_alt_ref_active))))
+{
+zbin_oq_high = 16;
+}
+else
+zbin_oq_high = ZBIN_OQ_MAX;
+#endif
+/* Setup background Q adjustment for error resilient mode.
+* For multi-layer encodes only enable this for the base layer.
+*/
+if (cpi->cyclic_refresh_mode_enabled)
+{
+if (cpi->current_layer==0)
+cyclic_background_refresh(cpi, Q, 0);
+else
+disable_segmentation(cpi);
+}
+vp8_compute_frame_size_bounds(cpi, &frame_under_shoot_limit, &frame_over_shoot_limit);
+#if !(CONFIG_REALTIME_ONLY)
+/* Limit Q range for the adaptive loop. */
+bottom_index = cpi->active_best_quality;
+top_index    = cpi->active_worst_quality;
+q_low  = cpi->active_best_quality;
+q_high = cpi->active_worst_quality;
+#endif
+vp8_save_coding_context(cpi);
+loop_count = 0;
+scale_and_extend_source(cpi->un_scaled_source, cpi);
+#if !(CONFIG_REALTIME_ONLY) && CONFIG_POSTPROC && !(CONFIG_TEMPORAL_DENOISING)
+if (cpi->oxcf.noise_sensitivity > 0)
+{
+unsigned char *src;
+int l = 0;
+switch (cpi->oxcf.noise_sensitivity)
+{
+case 1:
+l = 20;
+break;
+case 2:
+l = 40;
+break;
+case 3:
+l = 60;
+break;
+case 4:
+l = 80;
+break;
+case 5:
+l = 100;
+break;
+case 6:
+l = 150;
+break;
+}
+if (cm->frame_type == KEY_FRAME)
+{
+vp8_de_noise(cm, cpi->Source, cpi->Source, l , 1,  0);
+}
+else
+{
+vp8_de_noise(cm, cpi->Source, cpi->Source, l , 1,  0);
+src = cpi->Source->y_buffer;
+if (cpi->Source->y_stride < 0)
+{
+src += cpi->Source->y_stride * (cpi->Source->y_height - 1);
+}
+}
+}
+#endif
+#ifdef OUTPUT_YUV_SRC
+vp8_write_yuv_frame(cpi->Source);
+#endif
+do
+{
+vp8_clear_system_state();
+vp8_set_quantizer(cpi, Q);
+/* setup skip prob for costing in mode/mv decision */
+if (cpi->common.mb_no_coeff_skip)
+{
+cpi->prob_skip_false = cpi->base_skip_false_prob[Q];
+if (cm->frame_type != KEY_FRAME)
+{
+if (cpi->common.refresh_alt_ref_frame)
+{
+if (cpi->last_skip_false_probs[2] != 0)
+cpi->prob_skip_false = cpi->last_skip_false_probs[2];
+/*
+if(cpi->last_skip_false_probs[2]!=0 && abs(Q- cpi->last_skip_probs_q[2])<=16 )
+cpi->prob_skip_false = cpi->last_skip_false_probs[2];
+else if (cpi->last_skip_false_probs[2]!=0)
+cpi->prob_skip_false = (cpi->last_skip_false_probs[2]  + cpi->prob_skip_false ) / 2;
+*/
+}
+else if (cpi->common.refresh_golden_frame)
+{
+if (cpi->last_skip_false_probs[1] != 0)
+cpi->prob_skip_false = cpi->last_skip_false_probs[1];
+/*
+if(cpi->last_skip_false_probs[1]!=0 && abs(Q- cpi->last_skip_probs_q[1])<=16 )
+cpi->prob_skip_false = cpi->last_skip_false_probs[1];
+else if (cpi->last_skip_false_probs[1]!=0)
+cpi->prob_skip_false = (cpi->last_skip_false_probs[1]  + cpi->prob_skip_false ) / 2;
+*/
+}
+else
+{
+if (cpi->last_skip_false_probs[0] != 0)
+cpi->prob_skip_false = cpi->last_skip_false_probs[0];
+/*
+if(cpi->last_skip_false_probs[0]!=0 && abs(Q- cpi->last_skip_probs_q[0])<=16 )
+cpi->prob_skip_false = cpi->last_skip_false_probs[0];
+else if(cpi->last_skip_false_probs[0]!=0)
+cpi->prob_skip_false = (cpi->last_skip_false_probs[0]  + cpi->prob_skip_false ) / 2;
+*/
+}
+/* as this is for cost estimate, let's make sure it does not
+* go extreme eitehr way
+*/
+if (cpi->prob_skip_false < 5)
+cpi->prob_skip_false = 5;
+if (cpi->prob_skip_false > 250)
+cpi->prob_skip_false = 250;
+if (cpi->oxcf.number_of_layers == 1 && cpi->is_src_frame_alt_ref)
+cpi->prob_skip_false = 1;
+}
+#if 0
+if (cpi->pass != 1)
+{
+FILE *f = fopen("skip.stt", "a");
+fprintf(f, "%d, %d, %4d ", cpi->common.refresh_golden_frame, cpi->common.refresh_alt_ref_frame, cpi->prob_skip_false);
+fclose(f);
+}
+#endif
+}
+if (cm->frame_type == KEY_FRAME)
+{
+if(resize_key_frame(cpi))
+{
+/* If the frame size has changed, need to reset Q, quantizer,
+* and background refresh.
+*/
+Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+if (cpi->cyclic_refresh_mode_enabled)
+{
+if (cpi->current_layer==0)
+cyclic_background_refresh(cpi, Q, 0);
+else
+disable_segmentation(cpi);
+}
+vp8_set_quantizer(cpi, Q);
+}
+vp8_setup_key_frame(cpi);
+}
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+{
+if(cpi->oxcf.error_resilient_mode)
+cm->refresh_entropy_probs = 0;
+if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS)
+{
+if (cm->frame_type == KEY_FRAME)
+cm->refresh_entropy_probs = 1;
+}
+if (cm->refresh_entropy_probs == 0)
+{
+/* save a copy for later refresh */
+vpx_memcpy(&cm->lfc, &cm->fc, sizeof(cm->fc));
+}
+vp8_update_coef_context(cpi);
+vp8_update_coef_probs(cpi);
+/* transform / motion compensation build reconstruction frame
+* +pack coef partitions
+*/
+vp8_encode_frame(cpi);
+/* cpi->projected_frame_size is not needed for RT mode */
+}
+#else
+/* transform / motion compensation build reconstruction frame */
+vp8_encode_frame(cpi);
+cpi->projected_frame_size -= vp8_estimate_entropy_savings(cpi);
+cpi->projected_frame_size = (cpi->projected_frame_size > 0) ? cpi->projected_frame_size : 0;
+#endif
+vp8_clear_system_state();
+/* Test to see if the stats generated for this frame indicate that
+* we should have coded a key frame (assuming that we didn't)!
+*/
+if (cpi->pass != 2 && cpi->oxcf.auto_key && cm->frame_type != KEY_FRAME
+&& cpi->compressor_speed != 2)
+{
+#if !(CONFIG_REALTIME_ONLY)
+if (decide_key_frame(cpi))
+{
+/* Reset all our sizing numbers and recode */
+cm->frame_type = KEY_FRAME;
+vp8_pick_frame_size(cpi);
+/* Clear the Alt reference frame active flag when we have
+* a key frame
+*/
+cpi->source_alt_ref_active = 0;
+// Set the loop filter deltas and segmentation map update
+setup_features(cpi);
+vp8_restore_coding_context(cpi);
+Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+vp8_compute_frame_size_bounds(cpi, &frame_under_shoot_limit, &frame_over_shoot_limit);
+/* Limit Q range for the adaptive loop. */
+bottom_index = cpi->active_best_quality;
+top_index    = cpi->active_worst_quality;
+q_low  = cpi->active_best_quality;
+q_high = cpi->active_worst_quality;
+loop_count++;
+Loop = 1;
+continue;
+}
+#endif
+}
+vp8_clear_system_state();
+if (frame_over_shoot_limit == 0)
+frame_over_shoot_limit = 1;
+/* Are we are overshooting and up against the limit of active max Q. */
+if (((cpi->pass != 2) || (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)) &&
+(Q == cpi->active_worst_quality)                     &&
+(cpi->active_worst_quality < cpi->worst_quality)      &&
+(cpi->projected_frame_size > frame_over_shoot_limit))
+{
+int over_size_percent = ((cpi->projected_frame_size - frame_over_shoot_limit) * 100) / frame_over_shoot_limit;
+/* If so is there any scope for relaxing it */
+while ((cpi->active_worst_quality < cpi->worst_quality) && (over_size_percent > 0))
+{
+cpi->active_worst_quality++;
+/* Assume 1 qstep = about 4% on frame size. */
+over_size_percent = (int)(over_size_percent * 0.96);
+}
+#if !(CONFIG_REALTIME_ONLY)
+top_index = cpi->active_worst_quality;
+#endif
+/* If we have updated the active max Q do not call
+* vp8_update_rate_correction_factors() this loop.
+*/
+active_worst_qchanged = 1;
+}
+else
+active_worst_qchanged = 0;
+#if !(CONFIG_REALTIME_ONLY)
+/* Special case handling for forced key frames */
+if ( (cm->frame_type == KEY_FRAME) && cpi->this_key_frame_forced )
+{
+int last_q = Q;
+int kf_err = vp8_calc_ss_err(cpi->Source,
+&cm->yv12_fb[cm->new_fb_idx]);
+/* The key frame is not good enough */
+if ( kf_err > ((cpi->ambient_err * 7) >> 3) )
+{
+/* Lower q_high */
+q_high = (Q > q_low) ? (Q - 1) : q_low;
+/* Adjust Q */
+Q = (q_high + q_low) >> 1;
+}
+/* The key frame is much better than the previous frame */
+else if ( kf_err < (cpi->ambient_err >> 1) )
+{
+/* Raise q_low */
+q_low = (Q < q_high) ? (Q + 1) : q_high;
+/* Adjust Q */
+Q = (q_high + q_low + 1) >> 1;
+}
+/* Clamp Q to upper and lower limits: */
+if (Q > q_high)
+Q = q_high;
+else if (Q < q_low)
+Q = q_low;
+Loop = Q != last_q;
+}
+/* Is the projected frame size out of range and are we allowed
+* to attempt to recode.
+*/
+else if ( recode_loop_test( cpi,
+frame_over_shoot_limit, frame_under_shoot_limit,
+Q, top_index, bottom_index ) )
+{
+int last_q = Q;
+int Retries = 0;
+/* Frame size out of permitted range. Update correction factor
+* & compute new Q to try...
+*/
+/* Frame is too large */
+if (cpi->projected_frame_size > cpi->this_frame_target)
+{
+/* Raise Qlow as to at least the current value */
+q_low = (Q < q_high) ? (Q + 1) : q_high;
+/* If we are using over quant do the same for zbin_oq_low */
+if (cpi->mb.zbin_over_quant > 0)
+zbin_oq_low = (cpi->mb.zbin_over_quant < zbin_oq_high) ?
+(cpi->mb.zbin_over_quant + 1) : zbin_oq_high;
+if (undershoot_seen)
+{
+/* Update rate_correction_factor unless
+* cpi->active_worst_quality has changed.
+*/
+if (!active_worst_qchanged)
+vp8_update_rate_correction_factors(cpi, 1);
+Q = (q_high + q_low + 1) / 2;
+/* Adjust cpi->zbin_over_quant (only allowed when Q
+* is max)
+*/
+if (Q < MAXQ)
+cpi->mb.zbin_over_quant = 0;
+else
+{
+zbin_oq_low = (cpi->mb.zbin_over_quant < zbin_oq_high) ?
+(cpi->mb.zbin_over_quant + 1) : zbin_oq_high;
+cpi->mb.zbin_over_quant =
+(zbin_oq_high + zbin_oq_low) / 2;
+}
+}
+else
+{
+/* Update rate_correction_factor unless
+* cpi->active_worst_quality has changed.
+*/
+if (!active_worst_qchanged)
+vp8_update_rate_correction_factors(cpi, 0);
+Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+while (((Q < q_low) ||
+(cpi->mb.zbin_over_quant < zbin_oq_low)) &&
+(Retries < 10))
+{
+vp8_update_rate_correction_factors(cpi, 0);
+Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+Retries ++;
+}
+}
+overshoot_seen = 1;
+}
+/* Frame is too small */
+else
+{
+if (cpi->mb.zbin_over_quant == 0)
+/* Lower q_high if not using over quant */
+q_high = (Q > q_low) ? (Q - 1) : q_low;
+else
+/* else lower zbin_oq_high */
+zbin_oq_high = (cpi->mb.zbin_over_quant > zbin_oq_low) ?
+(cpi->mb.zbin_over_quant - 1) : zbin_oq_low;
+if (overshoot_seen)
+{
+/* Update rate_correction_factor unless
+* cpi->active_worst_quality has changed.
+*/
+if (!active_worst_qchanged)
+vp8_update_rate_correction_factors(cpi, 1);
+Q = (q_high + q_low) / 2;
+/* Adjust cpi->zbin_over_quant (only allowed when Q
+* is max)
+*/
+if (Q < MAXQ)
+cpi->mb.zbin_over_quant = 0;
+else
+cpi->mb.zbin_over_quant =
+(zbin_oq_high + zbin_oq_low) / 2;
+}
+else
+{
+/* Update rate_correction_factor unless
+* cpi->active_worst_quality has changed.
+*/
+if (!active_worst_qchanged)
+vp8_update_rate_correction_factors(cpi, 0);
+Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+/* Special case reset for qlow for constrained quality.
+* This should only trigger where there is very substantial
+* undershoot on a frame and the auto cq level is above
+* the user passsed in value.
+*/
+if ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
+(Q < q_low) )
+{
+q_low = Q;
+}
+while (((Q > q_high) ||
+(cpi->mb.zbin_over_quant > zbin_oq_high)) &&
+(Retries < 10))
+{
+vp8_update_rate_correction_factors(cpi, 0);
+Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+Retries ++;
+}
+}
+undershoot_seen = 1;
+}
+/* Clamp Q to upper and lower limits: */
+if (Q > q_high)
+Q = q_high;
+else if (Q < q_low)
+Q = q_low;
+/* Clamp cpi->zbin_over_quant */
+cpi->mb.zbin_over_quant = (cpi->mb.zbin_over_quant < zbin_oq_low) ?
+zbin_oq_low : (cpi->mb.zbin_over_quant > zbin_oq_high) ?
+zbin_oq_high : cpi->mb.zbin_over_quant;
+Loop = Q != last_q;
+}
+else
+#endif
+Loop = 0;
+if (cpi->is_src_frame_alt_ref)
+Loop = 0;
+if (Loop == 1)
+{
+vp8_restore_coding_context(cpi);
+loop_count++;
+#if CONFIG_INTERNAL_STATS
+cpi->tot_recode_hits++;
+#endif
+}
+}
+while (Loop == 1);
+#if 0
+/* Experimental code for lagged and one pass
+* Update stats used for one pass GF selection
+*/
+{
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_coded_error = (double)cpi->prediction_error;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_intra_error = (double)cpi->intra_error;
+cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_pcnt_inter = (double)(100 - cpi->this_frame_percent_intra) / 100.0;
+}
+#endif
+/* Special case code to reduce pulsing when key frames are forced at a
+* fixed interval. Note the reconstruction error if it is the frame before
+* the force key frame
+*/
+if ( cpi->next_key_frame_forced && (cpi->twopass.frames_to_key == 0) )
+{
+cpi->ambient_err = vp8_calc_ss_err(cpi->Source,
+&cm->yv12_fb[cm->new_fb_idx]);
+}
+/* This frame's MVs are saved and will be used in next frame's MV predictor.
+* Last frame has one more line(add to bottom) and one more column(add to
+* right) than cm->mip. The edge elements are initialized to 0.
+*/
+#if CONFIG_MULTI_RES_ENCODING
+if(!cpi->oxcf.mr_encoder_id && cm->show_frame)
+#else
+if(cm->show_frame)   /* do not save for altref frame */
+#endif
+{
+int mb_row;
+int mb_col;
+/* Point to beginning of allocated MODE_INFO arrays. */
+MODE_INFO *tmp = cm->mip;
+if(cm->frame_type != KEY_FRAME)
+{
+for (mb_row = 0; mb_row < cm->mb_rows+1; mb_row ++)
+{
+for (mb_col = 0; mb_col < cm->mb_cols+1; mb_col ++)
+{
+if(tmp->mbmi.ref_frame != INTRA_FRAME)
+cpi->lfmv[mb_col + mb_row*(cm->mode_info_stride+1)].as_int = tmp->mbmi.mv.as_int;
+cpi->lf_ref_frame_sign_bias[mb_col + mb_row*(cm->mode_info_stride+1)] = cm->ref_frame_sign_bias[tmp->mbmi.ref_frame];
+cpi->lf_ref_frame[mb_col + mb_row*(cm->mode_info_stride+1)] = tmp->mbmi.ref_frame;
+tmp++;
+}
+}
+}
+}
+/* Count last ref frame 0,0 usage on current encoded frame. */
+{
+int mb_row;
+int mb_col;
+/* Point to beginning of MODE_INFO arrays. */
+MODE_INFO *tmp = cm->mi;
+cpi->zeromv_count = 0;
+if(cm->frame_type != KEY_FRAME)
+{
+for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++)
+{
+for (mb_col = 0; mb_col < cm->mb_cols; mb_col ++)
+{
+if(tmp->mbmi.mode == ZEROMV)
+cpi->zeromv_count++;
+tmp++;
+}
+tmp++;
+}
+}
+}
+#if CONFIG_MULTI_RES_ENCODING
+vp8_cal_dissimilarity(cpi);
+#endif
+/* Update the GF useage maps.
+* This is done after completing the compression of a frame when all
+* modes etc. are finalized but before loop filter
+*/
+if (cpi->oxcf.number_of_layers == 1)
+vp8_update_gf_useage_maps(cpi, cm, &cpi->mb);
+if (cm->frame_type == KEY_FRAME)
+cm->refresh_last_frame = 1;
+#if 0
+{
+FILE *f = fopen("gfactive.stt", "a");
+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);
+fclose(f);
+}
+#endif
+/* For inter frames the current default behavior is that when
+* cm->refresh_golden_frame is set we copy the old GF over to the ARF buffer
+* This is purely an encoder decision at present.
+*/
+if (!cpi->oxcf.error_resilient_mode && cm->refresh_golden_frame)
+cm->copy_buffer_to_arf  = 2;
+else
+cm->copy_buffer_to_arf  = 0;
+cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx];
+#if CONFIG_MULTITHREAD
+if (cpi->b_multi_threaded)
+{
+/* start loopfilter in separate thread */
+sem_post(&cpi->h_event_start_lpf);
+cpi->b_lpf_running = 1;
+}
+else
+#endif
+{
+vp8_loopfilter_frame(cpi, cm);
+}
+update_reference_frames(cpi);
+#if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+if (cpi->oxcf.error_resilient_mode)
+{
+cm->refresh_entropy_probs = 0;
+}
+#endif
+#if CONFIG_MULTITHREAD
+/* wait that filter_level is picked so that we can continue with stream packing */
+if (cpi->b_multi_threaded)
+sem_wait(&cpi->h_event_end_lpf);
+#endif
+/* build the bitstream */
+vp8_pack_bitstream(cpi, dest, dest_end, size);
+#if CONFIG_MULTITHREAD
+/* if PSNR packets are generated we have to wait for the lpf */
+if (cpi->b_lpf_running && cpi->b_calculate_psnr)
+{
+sem_wait(&cpi->h_event_end_lpf);
+cpi->b_lpf_running = 0;
+}
+#endif
+/* Move storing frame_type out of the above loop since it is also
+* needed in motion search besides loopfilter */
+cm->last_frame_type = cm->frame_type;
+/* Update rate control heuristics */
+cpi->total_byte_count += (*size);
+cpi->projected_frame_size = (*size) << 3;
+if (cpi->oxcf.number_of_layers > 1)
+{
+unsigned int i;
+for (i=cpi->current_layer+1; i<cpi->oxcf.number_of_layers; i++)
+cpi->layer_context[i].total_byte_count += (*size);
+}
+if (!active_worst_qchanged)
+vp8_update_rate_correction_factors(cpi, 2);
+cpi->last_q[cm->frame_type] = cm->base_qindex;
+if (cm->frame_type == KEY_FRAME)
+{
+vp8_adjust_key_frame_context(cpi);
+}
+/* Keep a record of ambient average Q. */
+if (cm->frame_type != KEY_FRAME)
+cpi->avg_frame_qindex = (2 + 3 * cpi->avg_frame_qindex + cm->base_qindex) >> 2;
+/* Keep a record from which we can calculate the average Q excluding
+* GF updates and key frames
+*/
+if ((cm->frame_type != KEY_FRAME) && ((cpi->oxcf.number_of_layers > 1) ||
+(!cm->refresh_golden_frame && !cm->refresh_alt_ref_frame)))
+{
+cpi->ni_frames++;
+/* Calculate the average Q for normal inter frames (not key or GFU
+* frames).
+*/
+if ( cpi->pass == 2 )
+{
+cpi->ni_tot_qi += Q;
+cpi->ni_av_qi = (cpi->ni_tot_qi / cpi->ni_frames);
+}
+else
+{
+/* Damp value for first few frames */
+if (cpi->ni_frames > 150 )
+{
+cpi->ni_tot_qi += Q;
+cpi->ni_av_qi = (cpi->ni_tot_qi / cpi->ni_frames);
+}
+/* For one pass, early in the clip ... average the current frame Q
+* value with the worstq entered by the user as a dampening measure
+*/
+else
+{
+cpi->ni_tot_qi += Q;
+cpi->ni_av_qi = ((cpi->ni_tot_qi / cpi->ni_frames) + cpi->worst_quality + 1) / 2;
+}
+/* If the average Q is higher than what was used in the last
+* frame (after going through the recode loop to keep the frame
+* size within range) then use the last frame value - 1. The -1
+* is designed to stop Q and hence the data rate, from
+* progressively falling away during difficult sections, but at
+* the same time reduce the number of itterations around the
+* recode loop.
+*/
+if (Q > cpi->ni_av_qi)
+cpi->ni_av_qi = Q - 1;
+}
+}
+/* Update the buffer level variable. */
+/* Non-viewable frames are a special case and are treated as pure overhead. */
+if ( !cm->show_frame )
+cpi->bits_off_target -= cpi->projected_frame_size;
+else
+cpi->bits_off_target += cpi->av_per_frame_bandwidth - cpi->projected_frame_size;
+/* Clip the buffer level to the maximum specified buffer size */
+if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size)
+cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
+/* Rolling monitors of whether we are over or underspending used to
+* help regulate min and Max Q in two pass.
+*/
+cpi->rolling_target_bits = ((cpi->rolling_target_bits * 3) + cpi->this_frame_target + 2) / 4;
+cpi->rolling_actual_bits = ((cpi->rolling_actual_bits * 3) + cpi->projected_frame_size + 2) / 4;
+cpi->long_rolling_target_bits = ((cpi->long_rolling_target_bits * 31) + cpi->this_frame_target + 16) / 32;
+cpi->long_rolling_actual_bits = ((cpi->long_rolling_actual_bits * 31) + cpi->projected_frame_size + 16) / 32;
+/* Actual bits spent */
+cpi->total_actual_bits += cpi->projected_frame_size;
+/* Debug stats */
+cpi->total_target_vs_actual += (cpi->this_frame_target - cpi->projected_frame_size);
+cpi->buffer_level = cpi->bits_off_target;
+/* Propagate values to higher temporal layers */
+if (cpi->oxcf.number_of_layers > 1)
+{
+unsigned int i;
+for (i=cpi->current_layer+1; i<cpi->oxcf.number_of_layers; i++)
+{
+LAYER_CONTEXT *lc = &cpi->layer_context[i];
+int bits_off_for_this_layer =
+(int)(lc->target_bandwidth / lc->framerate -
+cpi->projected_frame_size);
+lc->bits_off_target += bits_off_for_this_layer;
+/* Clip buffer level to maximum buffer size for the layer */
+if (lc->bits_off_target > lc->maximum_buffer_size)
+lc->bits_off_target = lc->maximum_buffer_size;
+lc->total_actual_bits += cpi->projected_frame_size;
+lc->total_target_vs_actual += bits_off_for_this_layer;
+lc->buffer_level = lc->bits_off_target;
+}
+}
+/* Update bits left to the kf and gf groups to account for overshoot
+* or undershoot on these frames
+*/
+if (cm->frame_type == KEY_FRAME)
+{
+cpi->twopass.kf_group_bits += cpi->this_frame_target - cpi->projected_frame_size;
+if (cpi->twopass.kf_group_bits < 0)
+cpi->twopass.kf_group_bits = 0 ;
+}
+else if (cm->refresh_golden_frame || cm->refresh_alt_ref_frame)
+{
+cpi->twopass.gf_group_bits += cpi->this_frame_target - cpi->projected_frame_size;
+if (cpi->twopass.gf_group_bits < 0)
+cpi->twopass.gf_group_bits = 0 ;
+}
+if (cm->frame_type != KEY_FRAME)
+{
+if (cpi->common.refresh_alt_ref_frame)
+{
+cpi->last_skip_false_probs[2] = cpi->prob_skip_false;
+cpi->last_skip_probs_q[2] = cm->base_qindex;
+}
+else if (cpi->common.refresh_golden_frame)
+{
+cpi->last_skip_false_probs[1] = cpi->prob_skip_false;
+cpi->last_skip_probs_q[1] = cm->base_qindex;
+}
+else
+{
+cpi->last_skip_false_probs[0] = cpi->prob_skip_false;
+cpi->last_skip_probs_q[0] = cm->base_qindex;
+/* update the baseline */
+cpi->base_skip_false_prob[cm->base_qindex] = cpi->prob_skip_false;
+}
+}
+#if 0 && CONFIG_INTERNAL_STATS
+{
+FILE *f = fopen("tmp.stt", "a");
+vp8_clear_system_state();
+if (cpi->twopass.total_left_stats.coded_error != 0.0)
+fprintf(f, "%10d %10d %10d %10d %10d %10d %10d %10d %10d %6d %6d"
+"%6d %6d %6d %5d %5d %5d %8d %8.2f %10d %10.3f"
+"%10.3f %8d\n",
+cpi->common.current_video_frame, cpi->this_frame_target,
+cpi->projected_frame_size,
+(cpi->projected_frame_size - cpi->this_frame_target),
+(int)cpi->total_target_vs_actual,
+cpi->buffer_level,
+(cpi->oxcf.starting_buffer_level-cpi->bits_off_target),
+(int)cpi->total_actual_bits, cm->base_qindex,
+cpi->active_best_quality, cpi->active_worst_quality,
+cpi->ni_av_qi, cpi->cq_target_quality,
+cpi->zbin_over_quant,
+cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
+cm->frame_type, cpi->gfu_boost,
+cpi->twopass.est_max_qcorrection_factor,
+(int)cpi->twopass.bits_left,
+cpi->twopass.total_left_stats.coded_error,
+(double)cpi->twopass.bits_left /
+cpi->twopass.total_left_stats.coded_error,
+cpi->tot_recode_hits);
+else
+fprintf(f, "%10d %10d %10d %10d %10d %10d %10d %10d %10d %6d %6d"
+"%6d %6d %6d %5d %5d %5d %8d %8.2f %10d %10.3f"
+"%8d\n",
+cpi->common.current_video_frame,
+cpi->this_frame_target, cpi->projected_frame_size,
+(cpi->projected_frame_size - cpi->this_frame_target),
+(int)cpi->total_target_vs_actual,
+cpi->buffer_level,
+(cpi->oxcf.starting_buffer_level-cpi->bits_off_target),
+(int)cpi->total_actual_bits, cm->base_qindex,
+cpi->active_best_quality, cpi->active_worst_quality,
+cpi->ni_av_qi, cpi->cq_target_quality,
+cpi->zbin_over_quant,
+cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
+cm->frame_type, cpi->gfu_boost,
+cpi->twopass.est_max_qcorrection_factor,
+(int)cpi->twopass.bits_left,
+cpi->twopass.total_left_stats.coded_error,
+cpi->tot_recode_hits);
+fclose(f);
+{
+FILE *fmodes = fopen("Modes.stt", "a");
+int i;
+fprintf(fmodes, "%6d:%1d:%1d:%1d ",
+cpi->common.current_video_frame,
+cm->frame_type, cm->refresh_golden_frame,
+cm->refresh_alt_ref_frame);
+fprintf(fmodes, "\n");
+fclose(fmodes);
+}
+}
+#endif
+if (cm->refresh_golden_frame == 1)
+cm->frame_flags = cm->frame_flags | FRAMEFLAGS_GOLDEN;
+else
+cm->frame_flags = cm->frame_flags&~FRAMEFLAGS_GOLDEN;
+if (cm->refresh_alt_ref_frame == 1)
+cm->frame_flags = cm->frame_flags | FRAMEFLAGS_ALTREF;
+else
+cm->frame_flags = cm->frame_flags&~FRAMEFLAGS_ALTREF;
+if (cm->refresh_last_frame & cm->refresh_golden_frame)
+/* both refreshed */
+cpi->gold_is_last = 1;
+else if (cm->refresh_last_frame ^ cm->refresh_golden_frame)
+/* 1 refreshed but not the other */
+cpi->gold_is_last = 0;
+if (cm->refresh_last_frame & cm->refresh_alt_ref_frame)
+/* both refreshed */
+cpi->alt_is_last = 1;
+else if (cm->refresh_last_frame ^ cm->refresh_alt_ref_frame)
+/* 1 refreshed but not the other */
+cpi->alt_is_last = 0;
+if (cm->refresh_alt_ref_frame & cm->refresh_golden_frame)
+/* both refreshed */
+cpi->gold_is_alt = 1;
+else if (cm->refresh_alt_ref_frame ^ cm->refresh_golden_frame)
+/* 1 refreshed but not the other */
+cpi->gold_is_alt = 0;
+cpi->ref_frame_flags = VP8_ALTR_FRAME | VP8_GOLD_FRAME | VP8_LAST_FRAME;
+if (cpi->gold_is_last)
+cpi->ref_frame_flags &= ~VP8_GOLD_FRAME;
+if (cpi->alt_is_last)
+cpi->ref_frame_flags &= ~VP8_ALTR_FRAME;
+if (cpi->gold_is_alt)
+cpi->ref_frame_flags &= ~VP8_ALTR_FRAME;
+if (!cpi->oxcf.error_resilient_mode)
+{
+if (cpi->oxcf.play_alternate && cm->refresh_alt_ref_frame && (cm->frame_type != KEY_FRAME))
+/* Update the alternate reference frame stats as appropriate. */
+update_alt_ref_frame_stats(cpi);
+else
+/* Update the Golden frame stats as appropriate. */
+update_golden_frame_stats(cpi);
+}
+if (cm->frame_type == KEY_FRAME)
+{
+/* Tell the caller that the frame was coded as a key frame */
+*frame_flags = cm->frame_flags | FRAMEFLAGS_KEY;
+/* As this frame is a key frame  the next defaults to an inter frame. */
+cm->frame_type = INTER_FRAME;
+cpi->last_frame_percent_intra = 100;
+}
+else
+{
+*frame_flags = cm->frame_flags&~FRAMEFLAGS_KEY;
+cpi->last_frame_percent_intra = cpi->this_frame_percent_intra;
+}
+/* Clear the one shot update flags for segmentation map and mode/ref
+* loop filter deltas.
+*/
+cpi->mb.e_mbd.update_mb_segmentation_map = 0;
+cpi->mb.e_mbd.update_mb_segmentation_data = 0;
+cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
+/* Dont increment frame counters if this was an altref buffer update
+* not a real frame
+*/
+if (cm->show_frame)
+{
+cm->current_video_frame++;
+cpi->frames_since_key++;
+cpi->temporal_pattern_counter++;
+}
+/* reset to normal state now that we are done. */
+#if 0
+{
+char filename[512];
+FILE *recon_file;
+sprintf(filename, "enc%04d.yuv", (int) cm->current_video_frame);
+recon_file = fopen(filename, "wb");
+fwrite(cm->yv12_fb[cm->lst_fb_idx].buffer_alloc,
+cm->yv12_fb[cm->lst_fb_idx].frame_size, 1, recon_file);
+fclose(recon_file);
+}
+#endif
+/* DEBUG */
+/* vp8_write_yuv_frame("encoder_recon.yuv", cm->frame_to_show); */
+}
+#if !(CONFIG_REALTIME_ONLY)
+static void Pass2Encode(VP8_COMP *cpi, unsigned long *size, unsigned char *dest, unsigned char * dest_end, unsigned int *frame_flags)
+{
+if (!cpi->common.refresh_alt_ref_frame)
+vp8_second_pass(cpi);
+encode_frame_to_data_rate(cpi, size, dest, dest_end, frame_flags);
+cpi->twopass.bits_left -= 8 * *size;
+if (!cpi->common.refresh_alt_ref_frame)
+{
+double two_pass_min_rate = (double)(cpi->oxcf.target_bandwidth
+*cpi->oxcf.two_pass_vbrmin_section / 100);
+cpi->twopass.bits_left += (int64_t)(two_pass_min_rate / cpi->framerate);
+}
+}
+#endif
+/* For ARM NEON, d8-d15 are callee-saved registers, and need to be saved. */
+#if HAVE_NEON
+extern void vp8_push_neon(int64_t *store);
+extern void vp8_pop_neon(int64_t *store);
+#endif
+int vp8_receive_raw_frame(VP8_COMP *cpi, unsigned int frame_flags, YV12_BUFFER_CONFIG *sd, int64_t time_stamp, int64_t end_time)
+{
+#if HAVE_NEON
+int64_t store_reg[8];
+#if CONFIG_RUNTIME_CPU_DETECT
+VP8_COMMON            *cm = &cpi->common;
+#endif
+#endif
+struct vpx_usec_timer  timer;
+int                    res = 0;
+#if HAVE_NEON
+#if CONFIG_RUNTIME_CPU_DETECT
+if (cm->cpu_caps & HAS_NEON)
+#endif
+{
+vp8_push_neon(store_reg);
+}
+#endif
+vpx_usec_timer_start(&timer);
+/* Reinit the lookahead buffer if the frame size changes */
+if (sd->y_width != cpi->oxcf.Width || sd->y_height != cpi->oxcf.Height)
+{
+assert(cpi->oxcf.lag_in_frames < 2);
+dealloc_raw_frame_buffers(cpi);
+alloc_raw_frame_buffers(cpi);
+}
+if(vp8_lookahead_push(cpi->lookahead, sd, time_stamp, end_time,
+frame_flags, cpi->active_map_enabled ? cpi->active_map : NULL))
+res = -1;
+vpx_usec_timer_mark(&timer);
+cpi->time_receive_data += vpx_usec_timer_elapsed(&timer);
+#if HAVE_NEON
+#if CONFIG_RUNTIME_CPU_DETECT
+if (cm->cpu_caps & HAS_NEON)
+#endif
+{
+vp8_pop_neon(store_reg);
+}
+#endif
+return res;
+}
+static int frame_is_reference(const VP8_COMP *cpi)
+{
+const VP8_COMMON *cm = &cpi->common;
+const MACROBLOCKD *xd = &cpi->mb.e_mbd;
+return cm->frame_type == KEY_FRAME || cm->refresh_last_frame
+|| cm->refresh_golden_frame || cm->refresh_alt_ref_frame
+|| cm->copy_buffer_to_gf || cm->copy_buffer_to_arf
+|| cm->refresh_entropy_probs
+|| xd->mode_ref_lf_delta_update
+|| xd->update_mb_segmentation_map || xd->update_mb_segmentation_data;
+}
+int vp8_get_compressed_data(VP8_COMP *cpi, unsigned int *frame_flags, unsigned long *size, unsigned char *dest, unsigned char *dest_end, int64_t *time_stamp, int64_t *time_end, int flush)
+{
+#if HAVE_NEON
+int64_t store_reg[8];
+#endif
+VP8_COMMON *cm;
+struct vpx_usec_timer  tsctimer;
+struct vpx_usec_timer  ticktimer;
+struct vpx_usec_timer  cmptimer;
+YV12_BUFFER_CONFIG    *force_src_buffer = NULL;
+if (!cpi)
+return -1;
+cm = &cpi->common;
+if (setjmp(cpi->common.error.jmp))
+{
+cpi->common.error.setjmp = 0;
+return VPX_CODEC_CORRUPT_FRAME;
+}
+cpi->common.error.setjmp = 1;
+#if HAVE_NEON
+#if CONFIG_RUNTIME_CPU_DETECT
+if (cm->cpu_caps & HAS_NEON)
+#endif
+{
+vp8_push_neon(store_reg);
+}
+#endif
+vpx_usec_timer_start(&cmptimer);
+cpi->source = NULL;
+#if !(CONFIG_REALTIME_ONLY)
+/* Should we code an alternate reference frame */
+if (cpi->oxcf.error_resilient_mode == 0 &&
+cpi->oxcf.play_alternate &&
+cpi->source_alt_ref_pending)
+{
+if ((cpi->source = vp8_lookahead_peek(cpi->lookahead,
+cpi->frames_till_gf_update_due,
+PEEK_FORWARD)))
+{
+cpi->alt_ref_source = cpi->source;
+if (cpi->oxcf.arnr_max_frames > 0)
+{
+vp8_temporal_filter_prepare_c(cpi,
+cpi->frames_till_gf_update_due);
+force_src_buffer = &cpi->alt_ref_buffer;
+}
+cpi->frames_till_alt_ref_frame = cpi->frames_till_gf_update_due;
+cm->refresh_alt_ref_frame = 1;
+cm->refresh_golden_frame = 0;
+cm->refresh_last_frame = 0;
+cm->show_frame = 0;
+/* Clear Pending alt Ref flag. */
+cpi->source_alt_ref_pending = 0;
+cpi->is_src_frame_alt_ref = 0;
+}
+}
+#endif
+if (!cpi->source)
+{
+/* Read last frame source if we are encoding first pass. */
+if (cpi->pass == 1 && cm->current_video_frame > 0)
+{
+if((cpi->last_source = vp8_lookahead_peek(cpi->lookahead, 1,
+PEEK_BACKWARD)) == NULL)
+return -1;
+}
+if ((cpi->source = vp8_lookahead_pop(cpi->lookahead, flush)))
+{
+cm->show_frame = 1;
+cpi->is_src_frame_alt_ref = cpi->alt_ref_source
+&& (cpi->source == cpi->alt_ref_source);
+if(cpi->is_src_frame_alt_ref)
+cpi->alt_ref_source = NULL;
+}
+}
+if (cpi->source)
+{
+cpi->Source = force_src_buffer ? force_src_buffer : &cpi->source->img;
+cpi->un_scaled_source = cpi->Source;
+*time_stamp = cpi->source->ts_start;
+*time_end = cpi->source->ts_end;
+*frame_flags = cpi->source->flags;
+if (cpi->pass == 1 && cm->current_video_frame > 0)
+{
+cpi->last_frame_unscaled_source = &cpi->last_source->img;
+}
+}
+else
+{
+*size = 0;
+#if !(CONFIG_REALTIME_ONLY)
+if (flush && cpi->pass == 1 && !cpi->twopass.first_pass_done)
+{
+vp8_end_first_pass(cpi);    /* get last stats packet */
+cpi->twopass.first_pass_done = 1;
+}
+#endif
+#if HAVE_NEON
+#if CONFIG_RUNTIME_CPU_DETECT
+if (cm->cpu_caps & HAS_NEON)
+#endif
+{
+vp8_pop_neon(store_reg);
+}
+#endif
+return -1;
+}
+if (cpi->source->ts_start < cpi->first_time_stamp_ever)
+{
+cpi->first_time_stamp_ever = cpi->source->ts_start;
+cpi->last_end_time_stamp_seen = cpi->source->ts_start;
+}
+/* adjust frame rates based on timestamps given */
+if (cm->show_frame)
+{
+int64_t this_duration;
+int step = 0;
+if (cpi->source->ts_start == cpi->first_time_stamp_ever)
+{
+this_duration = cpi->source->ts_end - cpi->source->ts_start;
+step = 1;
+}
+else
+{
+int64_t last_duration;
+this_duration = cpi->source->ts_end - cpi->last_end_time_stamp_seen;
+last_duration = cpi->last_end_time_stamp_seen
+- cpi->last_time_stamp_seen;
+/* do a step update if the duration changes by 10% */
+if (last_duration)
+step = (int)(((this_duration - last_duration) *
+10 / last_duration));
+}
+if (this_duration)
+{
+if (step)
+cpi->ref_framerate = 10000000.0 / this_duration;
+else
+{
+double avg_duration, interval;
+/* Average this frame's rate into the last second's average
+* frame rate. If we haven't seen 1 second yet, then average
+* over the whole interval seen.
+*/
+interval = (double)(cpi->source->ts_end -
+cpi->first_time_stamp_ever);
+if(interval > 10000000.0)
+interval = 10000000;
+avg_duration = 10000000.0 / cpi->ref_framerate;
+avg_duration *= (interval - avg_duration + this_duration);
+avg_duration /= interval;
+cpi->ref_framerate = 10000000.0 / avg_duration;
+}
+if (cpi->oxcf.number_of_layers > 1)
+{
+unsigned int i;
+/* Update frame rates for each layer */
+for (i=0; i<cpi->oxcf.number_of_layers; i++)
+{
+LAYER_CONTEXT *lc = &cpi->layer_context[i];
+lc->framerate = cpi->ref_framerate /
+cpi->oxcf.rate_decimator[i];
+}
+}
+else
+vp8_new_framerate(cpi, cpi->ref_framerate);
+}
+cpi->last_time_stamp_seen = cpi->source->ts_start;
+cpi->last_end_time_stamp_seen = cpi->source->ts_end;
+}
+if (cpi->oxcf.number_of_layers > 1)
+{
+int layer;
+update_layer_contexts (cpi);
+/* Restore layer specific context & set frame rate */
+layer = cpi->oxcf.layer_id[
+cpi->temporal_pattern_counter % cpi->oxcf.periodicity];
+restore_layer_context (cpi, layer);
+vp8_new_framerate(cpi, cpi->layer_context[layer].framerate);
+}
+if (cpi->compressor_speed == 2)
+{
+vpx_usec_timer_start(&tsctimer);
+vpx_usec_timer_start(&ticktimer);
+}
+cpi->lf_zeromv_pct = (cpi->zeromv_count * 100)/cm->MBs;
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+{
+int i;
+const int num_part = (1 << cm->multi_token_partition);
+/* the available bytes in dest */
+const unsigned long dest_size = dest_end - dest;
+const int tok_part_buff_size = (dest_size * 9) / (10 * num_part);
+unsigned char *dp = dest;
+cpi->partition_d[0] = dp;
+dp += dest_size/10;         /* reserve 1/10 for control partition */
+cpi->partition_d_end[0] = dp;
+for(i = 0; i < num_part; i++)
+{
+cpi->partition_d[i + 1] = dp;
+dp += tok_part_buff_size;
+cpi->partition_d_end[i + 1] = dp;
+}
+}
+#endif
+/* start with a 0 size frame */
+*size = 0;
+/* Clear down mmx registers */
+vp8_clear_system_state();
+cm->frame_type = INTER_FRAME;
+cm->frame_flags = *frame_flags;
+#if 0
+if (cm->refresh_alt_ref_frame)
+{
+cm->refresh_golden_frame = 0;
+cm->refresh_last_frame = 0;
+}
+else
+{
+cm->refresh_golden_frame = 0;
+cm->refresh_last_frame = 1;
+}
+#endif
+/* find a free buffer for the new frame */
+{
+int i = 0;
+for(; i < NUM_YV12_BUFFERS; i++)
+{
+if(!cm->yv12_fb[i].flags)
+{
+cm->new_fb_idx = i;
+break;
+}
+}
+assert(i < NUM_YV12_BUFFERS );
+}
+#if !(CONFIG_REALTIME_ONLY)
+if (cpi->pass == 1)
+{
+Pass1Encode(cpi, size, dest, frame_flags);
+}
+else if (cpi->pass == 2)
+{
+Pass2Encode(cpi, size, dest, dest_end, frame_flags);
+}
+else
+#endif
+encode_frame_to_data_rate(cpi, size, dest, dest_end, frame_flags);
+if (cpi->compressor_speed == 2)
+{
+unsigned int duration, duration2;
+vpx_usec_timer_mark(&tsctimer);
+vpx_usec_timer_mark(&ticktimer);
+duration = (int)(vpx_usec_timer_elapsed(&ticktimer));
+duration2 = (unsigned int)((double)duration / 2);
+if (cm->frame_type != KEY_FRAME)
+{
+if (cpi->avg_encode_time == 0)
+cpi->avg_encode_time = duration;
+else
+cpi->avg_encode_time = (7 * cpi->avg_encode_time + duration) >> 3;
+}
+if (duration2)
+{
+{
+if (cpi->avg_pick_mode_time == 0)
+cpi->avg_pick_mode_time = duration2;
+else
+cpi->avg_pick_mode_time = (7 * cpi->avg_pick_mode_time + duration2) >> 3;
+}
+}
+}
+if (cm->refresh_entropy_probs == 0)
+{
+vpx_memcpy(&cm->fc, &cm->lfc, sizeof(cm->fc));
+}
+/* Save the contexts separately for alt ref, gold and last. */
+/* (TODO jbb -> Optimize this with pointers to avoid extra copies. ) */
+if(cm->refresh_alt_ref_frame)
+vpx_memcpy(&cpi->lfc_a, &cm->fc, sizeof(cm->fc));
+if(cm->refresh_golden_frame)
+vpx_memcpy(&cpi->lfc_g, &cm->fc, sizeof(cm->fc));
+if(cm->refresh_last_frame)
+vpx_memcpy(&cpi->lfc_n, &cm->fc, sizeof(cm->fc));
+/* if its a dropped frame honor the requests on subsequent frames */
+if (*size > 0)
+{
+cpi->droppable = !frame_is_reference(cpi);
+/* return to normal state */
+cm->refresh_entropy_probs = 1;
+cm->refresh_alt_ref_frame = 0;
+cm->refresh_golden_frame = 0;
+cm->refresh_last_frame = 1;
+cm->frame_type = INTER_FRAME;
+}
+/* Save layer specific state */
+if (cpi->oxcf.number_of_layers > 1)
+save_layer_context (cpi);
+vpx_usec_timer_mark(&cmptimer);
+cpi->time_compress_data += vpx_usec_timer_elapsed(&cmptimer);
+if (cpi->b_calculate_psnr && cpi->pass != 1 && cm->show_frame)
+{
+generate_psnr_packet(cpi);
+}
+#if CONFIG_INTERNAL_STATS
+if (cpi->pass != 1)
+{
+cpi->bytes += *size;
+if (cm->show_frame)
+{
+cpi->common.show_frame_mi = cpi->common.mi;
+cpi->count ++;
+if (cpi->b_calculate_psnr)
+{
+uint64_t ye,ue,ve;
+double frame_psnr;
+YV12_BUFFER_CONFIG      *orig = cpi->Source;
+YV12_BUFFER_CONFIG      *recon = cpi->common.frame_to_show;
+int y_samples = orig->y_height * orig->y_width ;
+int uv_samples = orig->uv_height * orig->uv_width ;
+int t_samples = y_samples + 2 * uv_samples;
+double sq_error, sq_error2;
+ye = calc_plane_error(orig->y_buffer, orig->y_stride,
+recon->y_buffer, recon->y_stride, orig->y_width, orig->y_height);
+ue = calc_plane_error(orig->u_buffer, orig->uv_stride,
+recon->u_buffer, recon->uv_stride, orig->uv_width, orig->uv_height);
+ve = calc_plane_error(orig->v_buffer, orig->uv_stride,
+recon->v_buffer, recon->uv_stride, orig->uv_width, orig->uv_height);
+sq_error = (double)(ye + ue + ve);
+frame_psnr = vp8_mse2psnr(t_samples, 255.0, sq_error);
+cpi->total_y += vp8_mse2psnr(y_samples, 255.0, (double)ye);
+cpi->total_u += vp8_mse2psnr(uv_samples, 255.0, (double)ue);
+cpi->total_v += vp8_mse2psnr(uv_samples, 255.0, (double)ve);
+cpi->total_sq_error += sq_error;
+cpi->total  += frame_psnr;
+#if CONFIG_POSTPROC
+{
+YV12_BUFFER_CONFIG      *pp = &cm->post_proc_buffer;
+double frame_psnr2, frame_ssim2 = 0;
+double weight = 0;
+vp8_deblock(cm, cm->frame_to_show, &cm->post_proc_buffer, cm->filter_level * 10 / 6, 1, 0);
+vp8_clear_system_state();
+ye = calc_plane_error(orig->y_buffer, orig->y_stride,
+pp->y_buffer, pp->y_stride, orig->y_width, orig->y_height);
+ue = calc_plane_error(orig->u_buffer, orig->uv_stride,
+pp->u_buffer, pp->uv_stride, orig->uv_width, orig->uv_height);
+ve = calc_plane_error(orig->v_buffer, orig->uv_stride,
+pp->v_buffer, pp->uv_stride, orig->uv_width, orig->uv_height);
+sq_error2 = (double)(ye + ue + ve);
+frame_psnr2 = vp8_mse2psnr(t_samples, 255.0, sq_error2);
+cpi->totalp_y += vp8_mse2psnr(y_samples,
+255.0, (double)ye);
+cpi->totalp_u += vp8_mse2psnr(uv_samples,
+255.0, (double)ue);
+cpi->totalp_v += vp8_mse2psnr(uv_samples,
+255.0, (double)ve);
+cpi->total_sq_error2 += sq_error2;
+cpi->totalp  += frame_psnr2;
+frame_ssim2 = vp8_calc_ssim(cpi->Source,
+&cm->post_proc_buffer, 1, &weight);
+cpi->summed_quality += frame_ssim2 * weight;
+cpi->summed_weights += weight;
+if (cpi->oxcf.number_of_layers > 1)
+{
+unsigned int i;
+for (i=cpi->current_layer;
+i<cpi->oxcf.number_of_layers; i++)
+{
+cpi->frames_in_layer[i]++;
+cpi->bytes_in_layer[i] += *size;
+cpi->sum_psnr[i]       += frame_psnr;
+cpi->sum_psnr_p[i]     += frame_psnr2;
+cpi->total_error2[i]   += sq_error;
+cpi->total_error2_p[i] += sq_error2;
+cpi->sum_ssim[i]       += frame_ssim2 * weight;
+cpi->sum_weights[i]    += weight;
+}
+}
+}
+#endif
+}
+if (cpi->b_calculate_ssimg)
+{
+double y, u, v, frame_all;
+frame_all =  vp8_calc_ssimg(cpi->Source, cm->frame_to_show,
+&y, &u, &v);
+if (cpi->oxcf.number_of_layers > 1)
+{
+unsigned int i;
+for (i=cpi->current_layer;
+i<cpi->oxcf.number_of_layers; i++)
+{
+if (!cpi->b_calculate_psnr)
+cpi->frames_in_layer[i]++;
+cpi->total_ssimg_y_in_layer[i] += y;
+cpi->total_ssimg_u_in_layer[i] += u;
+cpi->total_ssimg_v_in_layer[i] += v;
+cpi->total_ssimg_all_in_layer[i] += frame_all;
+}
+}
+else
+{
+cpi->total_ssimg_y += y;
+cpi->total_ssimg_u += u;
+cpi->total_ssimg_v += v;
+cpi->total_ssimg_all += frame_all;
+}
+}
+}
+}
+#if 0
+if (cpi->common.frame_type != 0 && cpi->common.base_qindex == cpi->oxcf.worst_allowed_q)
+{
+skiptruecount += cpi->skip_true_count;
+skipfalsecount += cpi->skip_false_count;
+}
+#endif
+#if 0
+if (cpi->pass != 1)
+{
+FILE *f = fopen("skip.stt", "a");
+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);
+if (cpi->is_src_frame_alt_ref == 1)
+fprintf(f, "skipcount: %4d framesize: %d\n", cpi->skip_true_count , *size);
+fclose(f);
+}
+#endif
+#endif
+#if HAVE_NEON
+#if CONFIG_RUNTIME_CPU_DETECT
+if (cm->cpu_caps & HAS_NEON)
+#endif
+{
+vp8_pop_neon(store_reg);
+}
+#endif
+cpi->common.error.setjmp = 0;
+return 0;
+}
+int vp8_get_preview_raw_frame(VP8_COMP *cpi, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t *flags)
+{
+if (cpi->common.refresh_alt_ref_frame)
+return -1;
+else
+{
+int ret;
+#if CONFIG_MULTITHREAD
+if(cpi->b_lpf_running)
+{
+sem_wait(&cpi->h_event_end_lpf);
+cpi->b_lpf_running = 0;
+}
+#endif
+#if CONFIG_POSTPROC
+cpi->common.show_frame_mi = cpi->common.mi;
+ret = vp8_post_proc_frame(&cpi->common, dest, flags);
+#else
+if (cpi->common.frame_to_show)
+{
+*dest = *cpi->common.frame_to_show;
+dest->y_width = cpi->common.Width;
+dest->y_height = cpi->common.Height;
+dest->uv_height = cpi->common.Height / 2;
+ret = 0;
+}
+else
+{
+ret = -1;
+}
+#endif
+vp8_clear_system_state();
+return ret;
+}
+}
+int vp8_set_roimap(VP8_COMP *cpi, unsigned char *map, unsigned int rows, unsigned int cols, int delta_q[4], int delta_lf[4], unsigned int threshold[4])
+{
+signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
+int internal_delta_q[MAX_MB_SEGMENTS];
+const int range = 63;
+int i;
+// This method is currently incompatible with the cyclic refresh method
+if ( cpi->cyclic_refresh_mode_enabled )
+return -1;
+// Check number of rows and columns match
+if (cpi->common.mb_rows != rows || cpi->common.mb_cols != cols)
+return -1;
+// Range check the delta Q values and convert the external Q range values
+// to internal ones.
+if ( (abs(delta_q[0]) > range) || (abs(delta_q[1]) > range) ||
+(abs(delta_q[2]) > range) || (abs(delta_q[3]) > range) )
+return -1;
+// Range check the delta lf values
+if ( (abs(delta_lf[0]) > range) || (abs(delta_lf[1]) > range) ||
+(abs(delta_lf[2]) > range) || (abs(delta_lf[3]) > range) )
+return -1;
+if (!map)
+{
+disable_segmentation(cpi);
+return 0;
+}
+// Translate the external delta q values to internal values.
+for ( i = 0; i < MAX_MB_SEGMENTS; i++ )
+internal_delta_q[i] =
+( delta_q[i] >= 0 ) ? q_trans[delta_q[i]] : -q_trans[-delta_q[i]];
+/* Set the segmentation Map */
+set_segmentation_map(cpi, map);
+/* Activate segmentation. */
+enable_segmentation(cpi);
+/* Set up the quant segment data */
+feature_data[MB_LVL_ALT_Q][0] = internal_delta_q[0];
+feature_data[MB_LVL_ALT_Q][1] = internal_delta_q[1];
+feature_data[MB_LVL_ALT_Q][2] = internal_delta_q[2];
+feature_data[MB_LVL_ALT_Q][3] = internal_delta_q[3];
+/* Set up the loop segment data s */
+feature_data[MB_LVL_ALT_LF][0] = delta_lf[0];
+feature_data[MB_LVL_ALT_LF][1] = delta_lf[1];
+feature_data[MB_LVL_ALT_LF][2] = delta_lf[2];
+feature_data[MB_LVL_ALT_LF][3] = delta_lf[3];
+cpi->segment_encode_breakout[0] = threshold[0];
+cpi->segment_encode_breakout[1] = threshold[1];
+cpi->segment_encode_breakout[2] = threshold[2];
+cpi->segment_encode_breakout[3] = threshold[3];
+/* Initialise the feature data structure */
+set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
+return 0;
+}
+int vp8_set_active_map(VP8_COMP *cpi, unsigned char *map, unsigned int rows, unsigned int cols)
+{
+if (rows == cpi->common.mb_rows && cols == cpi->common.mb_cols)
+{
+if (map)
+{
+vpx_memcpy(cpi->active_map, map, rows * cols);
+cpi->active_map_enabled = 1;
+}
+else
+cpi->active_map_enabled = 0;
+return 0;
+}
+else
+{
+return -1 ;
+}
+}
+int vp8_set_internal_size(VP8_COMP *cpi, VPX_SCALING horiz_mode, VPX_SCALING vert_mode)
+{
+if (horiz_mode <= ONETWO)
+cpi->common.horiz_scale = horiz_mode;
+else
+return -1;
+if (vert_mode <= ONETWO)
+cpi->common.vert_scale  = vert_mode;
+else
+return -1;
+return 0;
+}
+int vp8_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest)
+{
+int i, j;
+int Total = 0;
+unsigned char *src = source->y_buffer;
+unsigned char *dst = dest->y_buffer;
+/* Loop through the Y plane raw and reconstruction data summing
+* (square differences)
+*/
+for (i = 0; i < source->y_height; i += 16)
+{
+for (j = 0; j < source->y_width; j += 16)
+{
+unsigned int sse;
+Total += vp8_mse16x16(src + j, source->y_stride, dst + j, dest->y_stride, &sse);
+}
+src += 16 * source->y_stride;
+dst += 16 * dest->y_stride;
+}
+return Total;
+}
+int vp8_get_quantizer(VP8_COMP *cpi)
+{
+return cpi->common.base_qindex;
+}

The Tor Browser / file comparison

comparison: media/libvpx/vp8/encoder/onyx_if.c

media/libvpx/vp8/encoder/onyx_if.c