The Tor Browser: comparison media/libvpx/vp9/encoder/vp9_onyx

--1:000000000000
+:d92468fb1050
+/*
+* 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 <math.h>
+#include <stdio.h>
+#include <limits.h>
+#include "./vpx_config.h"
+#include "./vpx_scale_rtcd.h"
+#include "vp9/common/vp9_alloccommon.h"
+#include "vp9/common/vp9_filter.h"
+#include "vp9/common/vp9_idct.h"
+#if CONFIG_VP9_POSTPROC
+#include "vp9/common/vp9_postproc.h"
+#endif
+#include "vp9/common/vp9_reconinter.h"
+#include "vp9/common/vp9_systemdependent.h"
+#include "vp9/common/vp9_tile_common.h"
+#include "vp9/encoder/vp9_firstpass.h"
+#include "vp9/encoder/vp9_mbgraph.h"
+#include "vp9/encoder/vp9_onyx_int.h"
+#include "vp9/encoder/vp9_picklpf.h"
+#include "vp9/encoder/vp9_psnr.h"
+#include "vp9/encoder/vp9_ratectrl.h"
+#include "vp9/encoder/vp9_rdopt.h"
+#include "vp9/encoder/vp9_segmentation.h"
+#include "vp9/encoder/vp9_temporal_filter.h"
+#include "vp9/encoder/vp9_vaq.h"
+#include "vpx_ports/vpx_timer.h"
+extern void print_tree_update_probs();
+static void set_default_lf_deltas(struct loopfilter *lf);
+#define DEFAULT_INTERP_FILTER SWITCHABLE
+#define SHARP_FILTER_QTHRESH 0          /* Q threshold for 8-tap sharp filter */
+#define ALTREF_HIGH_PRECISION_MV 1      // Whether to use high precision mv
+//  for altref computation.
+#define HIGH_PRECISION_MV_QTHRESH 200   // Q threshold for high precision
+// mv. Choose a very high value for
+// now so that HIGH_PRECISION is always
+// chosen.
+// Masks for partially or completely disabling split mode
+#define DISABLE_ALL_SPLIT         0x3F
+#define DISABLE_ALL_INTER_SPLIT   0x1F
+#define DISABLE_COMPOUND_SPLIT    0x18
+#define LAST_AND_INTRA_SPLIT_ONLY 0x1E
+#if CONFIG_INTERNAL_STATS
+extern double vp9_calc_ssim(YV12_BUFFER_CONFIG *source,
+YV12_BUFFER_CONFIG *dest, int lumamask,
+double *weight);
+extern double vp9_calc_ssimg(YV12_BUFFER_CONFIG *source,
+YV12_BUFFER_CONFIG *dest, double *ssim_y,
+double *ssim_u, double *ssim_v);
+#endif
+// #define OUTPUT_YUV_REC
+#ifdef OUTPUT_YUV_SRC
+FILE *yuv_file;
+#endif
+#ifdef OUTPUT_YUV_REC
+FILE *yuv_rec_file;
+#endif
+#if 0
+FILE *framepsnr;
+FILE *kf_list;
+FILE *keyfile;
+#endif
+#ifdef ENTROPY_STATS
+extern int intra_mode_stats[INTRA_MODES]
+[INTRA_MODES]
+[INTRA_MODES];
+#endif
+#ifdef MODE_STATS
+extern void init_tx_count_stats();
+extern void write_tx_count_stats();
+extern void init_switchable_interp_stats();
+extern void write_switchable_interp_stats();
+#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};
+#endif
+#if defined(SECTIONBITS_OUTPUT)
+extern unsigned __int64 Sectionbits[500];
+#endif
+extern void vp9_init_quantizer(VP9_COMP *cpi);
+// Tables relating active max Q to active min Q
+static int kf_low_motion_minq[QINDEX_RANGE];
+static int kf_high_motion_minq[QINDEX_RANGE];
+static int gf_low_motion_minq[QINDEX_RANGE];
+static int gf_high_motion_minq[QINDEX_RANGE];
+static int inter_minq[QINDEX_RANGE];
+static int afq_low_motion_minq[QINDEX_RANGE];
+static int afq_high_motion_minq[QINDEX_RANGE];
+static INLINE void Scale2Ratio(int mode, int *hr, int *hs) {
+switch (mode) {
+case NORMAL:
+*hr = 1;
+*hs = 1;
+break;
+case FOURFIVE:
+*hr = 4;
+*hs = 5;
+break;
+case THREEFIVE:
+*hr = 3;
+*hs = 5;
+break;
+case ONETWO:
+*hr = 1;
+*hs = 2;
+break;
+default:
+*hr = 1;
+*hs = 1;
+assert(0);
+break;
+}
+}
+// Functions to compute the active minq lookup table entries based on a
+// formulaic approach to facilitate easier adjustment of the Q tables.
+// The formulae were derived from computing a 3rd order polynomial best
+// fit to the original data (after plotting real maxq vs minq (not q index))
+static int calculate_minq_index(double maxq,
+double x3, double x2, double x1, double c) {
+int i;
+const double minqtarget = MIN(((x3 * maxq + x2) * maxq + x1) * maxq + c,
+maxq);
+// Special case handling to deal with the step from q2.0
+// down to lossless mode represented by q 1.0.
+if (minqtarget <= 2.0)
+return 0;
+for (i = 0; i < QINDEX_RANGE; i++) {
+if (minqtarget <= vp9_convert_qindex_to_q(i))
+return i;
+}
+return QINDEX_RANGE - 1;
+}
+static void init_minq_luts(void) {
+int i;
+for (i = 0; i < QINDEX_RANGE; i++) {
+const double maxq = vp9_convert_qindex_to_q(i);
+kf_low_motion_minq[i] = calculate_minq_index(maxq,
+0.000001,
+-0.0004,
+0.15,
+0.0);
+kf_high_motion_minq[i] = calculate_minq_index(maxq,
+0.000002,
+-0.0012,
+0.5,
+0.0);
+gf_low_motion_minq[i] = calculate_minq_index(maxq,
+0.0000015,
+-0.0009,
+0.32,
+0.0);
+gf_high_motion_minq[i] = calculate_minq_index(maxq,
+0.0000021,
+-0.00125,
+0.50,
+0.0);
+inter_minq[i] = calculate_minq_index(maxq,
+0.00000271,
+-0.00113,
+0.75,
+0.0);
+afq_low_motion_minq[i] = calculate_minq_index(maxq,
+0.0000015,
+-0.0009,
+0.33,
+0.0);
+afq_high_motion_minq[i] = calculate_minq_index(maxq,
+0.0000021,
+-0.00125,
+0.55,
+0.0);
+}
+}
+static int get_active_quality(int q,
+int gfu_boost,
+int low,
+int high,
+int *low_motion_minq,
+int *high_motion_minq) {
+int active_best_quality;
+if (gfu_boost > high) {
+active_best_quality = low_motion_minq[q];
+} else if (gfu_boost < low) {
+active_best_quality = high_motion_minq[q];
+} else {
+const int gap = high - low;
+const int offset = high - gfu_boost;
+const int qdiff = high_motion_minq[q] - low_motion_minq[q];
+const int adjustment = ((offset * qdiff) + (gap >> 1)) / gap;
+active_best_quality = low_motion_minq[q] + adjustment;
+}
+return active_best_quality;
+}
+static void set_mvcost(VP9_COMP *cpi) {
+MACROBLOCK *const mb = &cpi->mb;
+if (cpi->common.allow_high_precision_mv) {
+mb->mvcost = mb->nmvcost_hp;
+mb->mvsadcost = mb->nmvsadcost_hp;
+} else {
+mb->mvcost = mb->nmvcost;
+mb->mvsadcost = mb->nmvsadcost;
+}
+}
+void vp9_initialize_enc() {
+static int init_done = 0;
+if (!init_done) {
+vp9_initialize_common();
+vp9_tokenize_initialize();
+vp9_init_quant_tables();
+vp9_init_me_luts();
+init_minq_luts();
+// init_base_skip_probs();
+init_done = 1;
+}
+}
+static void setup_features(VP9_COMMON *cm) {
+struct loopfilter *const lf = &cm->lf;
+struct segmentation *const seg = &cm->seg;
+// Set up default state for MB feature flags
+seg->enabled = 0;
+seg->update_map = 0;
+seg->update_data = 0;
+vpx_memset(seg->tree_probs, 255, sizeof(seg->tree_probs));
+vp9_clearall_segfeatures(seg);
+lf->mode_ref_delta_enabled = 0;
+lf->mode_ref_delta_update = 0;
+vp9_zero(lf->ref_deltas);
+vp9_zero(lf->mode_deltas);
+vp9_zero(lf->last_ref_deltas);
+vp9_zero(lf->last_mode_deltas);
+set_default_lf_deltas(lf);
+}
+static void dealloc_compressor_data(VP9_COMP *cpi) {
+// Delete sementation map
+vpx_free(cpi->segmentation_map);
+cpi->segmentation_map = 0;
+vpx_free(cpi->common.last_frame_seg_map);
+cpi->common.last_frame_seg_map = 0;
+vpx_free(cpi->coding_context.last_frame_seg_map_copy);
+cpi->coding_context.last_frame_seg_map_copy = 0;
+vpx_free(cpi->active_map);
+cpi->active_map = 0;
+vp9_free_frame_buffers(&cpi->common);
+vp9_free_frame_buffer(&cpi->last_frame_uf);
+vp9_free_frame_buffer(&cpi->scaled_source);
+vp9_free_frame_buffer(&cpi->alt_ref_buffer);
+vp9_lookahead_destroy(cpi->lookahead);
+vpx_free(cpi->tok);
+cpi->tok = 0;
+// Activity mask based per mb zbin adjustments
+vpx_free(cpi->mb_activity_map);
+cpi->mb_activity_map = 0;
+vpx_free(cpi->mb_norm_activity_map);
+cpi->mb_norm_activity_map = 0;
+vpx_free(cpi->above_context[0]);
+cpi->above_context[0] = NULL;
+vpx_free(cpi->above_seg_context);
+cpi->above_seg_context = NULL;
+}
+// Computes a q delta (in "q index" terms) to get from a starting q value
+// to a target value
+// target q value
+int vp9_compute_qdelta(VP9_COMP *cpi, double qstart, double qtarget) {
+int i;
+int start_index = cpi->worst_quality;
+int target_index = cpi->worst_quality;
+// Convert the average q value to an index.
+for (i = cpi->best_quality; i < cpi->worst_quality; i++) {
+start_index = i;
+if (vp9_convert_qindex_to_q(i) >= qstart)
+break;
+}
+// Convert the q target to an index
+for (i = cpi->best_quality; i < cpi->worst_quality; i++) {
+target_index = i;
+if (vp9_convert_qindex_to_q(i) >= qtarget)
+break;
+}
+return target_index - start_index;
+}
+static void configure_static_seg_features(VP9_COMP *cpi) {
+VP9_COMMON *cm = &cpi->common;
+struct segmentation *seg = &cm->seg;
+int high_q = (int)(cpi->avg_q > 48.0);
+int qi_delta;
+// Disable and clear down for KF
+if (cm->frame_type == KEY_FRAME) {
+// Clear down the global segmentation map
+vpx_memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
+seg->update_map = 0;
+seg->update_data = 0;
+cpi->static_mb_pct = 0;
+// Disable segmentation
+vp9_disable_segmentation((VP9_PTR)cpi);
+// Clear down the segment features.
+vp9_clearall_segfeatures(seg);
+} else if (cpi->refresh_alt_ref_frame) {
+// If this is an alt ref frame
+// Clear down the global segmentation map
+vpx_memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
+seg->update_map = 0;
+seg->update_data = 0;
+cpi->static_mb_pct = 0;
+// Disable segmentation and individual segment features by default
+vp9_disable_segmentation((VP9_PTR)cpi);
+vp9_clearall_segfeatures(seg);
+// Scan frames from current to arf frame.
+// This function re-enables segmentation if appropriate.
+vp9_update_mbgraph_stats(cpi);
+// If segmentation was enabled set those features needed for the
+// arf itself.
+if (seg->enabled) {
+seg->update_map = 1;
+seg->update_data = 1;
+qi_delta = vp9_compute_qdelta(cpi, cpi->avg_q, (cpi->avg_q * 0.875));
+vp9_set_segdata(seg, 1, SEG_LVL_ALT_Q, (qi_delta - 2));
+vp9_set_segdata(seg, 1, SEG_LVL_ALT_LF, -2);
+vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
+vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_LF);
+// Where relevant assume segment data is delta data
+seg->abs_delta = SEGMENT_DELTADATA;
+}
+} else if (seg->enabled) {
+// All other frames if segmentation has been enabled
+// First normal frame in a valid gf or alt ref group
+if (cpi->frames_since_golden == 0) {
+// Set up segment features for normal frames in an arf group
+if (cpi->source_alt_ref_active) {
+seg->update_map = 0;
+seg->update_data = 1;
+seg->abs_delta = SEGMENT_DELTADATA;
+qi_delta = vp9_compute_qdelta(cpi, cpi->avg_q,
+(cpi->avg_q * 1.125));
+vp9_set_segdata(seg, 1, SEG_LVL_ALT_Q, (qi_delta + 2));
+vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
+vp9_set_segdata(seg, 1, SEG_LVL_ALT_LF, -2);
+vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_LF);
+// Segment coding disabled for compred testing
+if (high_q || (cpi->static_mb_pct == 100)) {
+vp9_set_segdata(seg, 1, SEG_LVL_REF_FRAME, ALTREF_FRAME);
+vp9_enable_segfeature(seg, 1, SEG_LVL_REF_FRAME);
+vp9_enable_segfeature(seg, 1, SEG_LVL_SKIP);
+}
+} else {
+// Disable segmentation and clear down features if alt ref
+// is not active for this group
+vp9_disable_segmentation((VP9_PTR)cpi);
+vpx_memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
+seg->update_map = 0;
+seg->update_data = 0;
+vp9_clearall_segfeatures(seg);
+}
+} else if (cpi->is_src_frame_alt_ref) {
+// Special case where we are coding over the top of a previous
+// alt ref frame.
+// Segment coding disabled for compred testing
+// Enable ref frame features for segment 0 as well
+vp9_enable_segfeature(seg, 0, SEG_LVL_REF_FRAME);
+vp9_enable_segfeature(seg, 1, SEG_LVL_REF_FRAME);
+// All mbs should use ALTREF_FRAME
+vp9_clear_segdata(seg, 0, SEG_LVL_REF_FRAME);
+vp9_set_segdata(seg, 0, SEG_LVL_REF_FRAME, ALTREF_FRAME);
+vp9_clear_segdata(seg, 1, SEG_LVL_REF_FRAME);
+vp9_set_segdata(seg, 1, SEG_LVL_REF_FRAME, ALTREF_FRAME);
+// Skip all MBs if high Q (0,0 mv and skip coeffs)
+if (high_q) {
+vp9_enable_segfeature(seg, 0, SEG_LVL_SKIP);
+vp9_enable_segfeature(seg, 1, SEG_LVL_SKIP);
+}
+// Enable data update
+seg->update_data = 1;
+} else {
+// All other frames.
+// No updates.. leave things as they are.
+seg->update_map = 0;
+seg->update_data = 0;
+}
+}
+}
+#ifdef ENTROPY_STATS
+void vp9_update_mode_context_stats(VP9_COMP *cpi) {
+VP9_COMMON *cm = &cpi->common;
+int i, j;
+unsigned int (*inter_mode_counts)[INTER_MODES - 1][2] =
+cm->fc.inter_mode_counts;
+int64_t (*mv_ref_stats)[INTER_MODES - 1][2] = cpi->mv_ref_stats;
+FILE *f;
+// Read the past stats counters
+f = fopen("mode_context.bin",  "rb");
+if (!f) {
+vpx_memset(cpi->mv_ref_stats, 0, sizeof(cpi->mv_ref_stats));
+} else {
+fread(cpi->mv_ref_stats, sizeof(cpi->mv_ref_stats), 1, f);
+fclose(f);
+}
+// Add in the values for this frame
+for (i = 0; i < INTER_MODE_CONTEXTS; i++) {
+for (j = 0; j < INTER_MODES - 1; j++) {
+mv_ref_stats[i][j][0] += (int64_t)inter_mode_counts[i][j][0];
+mv_ref_stats[i][j][1] += (int64_t)inter_mode_counts[i][j][1];
+}
+}
+// Write back the accumulated stats
+f = fopen("mode_context.bin",  "wb");
+fwrite(cpi->mv_ref_stats, sizeof(cpi->mv_ref_stats), 1, f);
+fclose(f);
+}
+void print_mode_context(VP9_COMP *cpi) {
+FILE *f = fopen("vp9_modecont.c", "a");
+int i, j;
+fprintf(f, "#include \"vp9_entropy.h\"\n");
+fprintf(
+f,
+"const int inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1] =");
+fprintf(f, "{\n");
+for (j = 0; j < INTER_MODE_CONTEXTS; j++) {
+fprintf(f, "  {/* %d */ ", j);
+fprintf(f, "    ");
+for (i = 0; i < INTER_MODES - 1; i++) {
+int this_prob;
+int64_t count = cpi->mv_ref_stats[j][i][0] + cpi->mv_ref_stats[j][i][1];
+if (count)
+this_prob = ((cpi->mv_ref_stats[j][i][0] * 256) + (count >> 1)) / count;
+else
+this_prob = 128;
+// context probs
+fprintf(f, "%5d, ", this_prob);
+}
+fprintf(f, "  },\n");
+}
+fprintf(f, "};\n");
+fclose(f);
+}
+#endif  // ENTROPY_STATS
+// DEBUG: Print out the segment id of each MB in the current frame.
+static void print_seg_map(VP9_COMP *cpi) {
+VP9_COMMON *cm = &cpi->common;
+int row, col;
+int map_index = 0;
+FILE *statsfile = fopen("segmap.stt", "a");
+fprintf(statsfile, "%10d\n", cm->current_video_frame);
+for (row = 0; row < cpi->common.mi_rows; row++) {
+for (col = 0; col < cpi->common.mi_cols; col++) {
+fprintf(statsfile, "%10d", cpi->segmentation_map[map_index]);
+map_index++;
+}
+fprintf(statsfile, "\n");
+}
+fprintf(statsfile, "\n");
+fclose(statsfile);
+}
+static void update_reference_segmentation_map(VP9_COMP *cpi) {
+VP9_COMMON *const cm = &cpi->common;
+int row, col;
+MODE_INFO **mi_8x8, **mi_8x8_ptr = cm->mi_grid_visible;
+uint8_t *cache_ptr = cm->last_frame_seg_map, *cache;
+for (row = 0; row < cm->mi_rows; row++) {
+mi_8x8 = mi_8x8_ptr;
+cache = cache_ptr;
+for (col = 0; col < cm->mi_cols; col++, mi_8x8++, cache++)
+cache[0] = mi_8x8[0]->mbmi.segment_id;
+mi_8x8_ptr += cm->mode_info_stride;
+cache_ptr += cm->mi_cols;
+}
+}
+static void set_default_lf_deltas(struct loopfilter *lf) {
+lf->mode_ref_delta_enabled = 1;
+lf->mode_ref_delta_update = 1;
+vp9_zero(lf->ref_deltas);
+vp9_zero(lf->mode_deltas);
+// Test of ref frame deltas
+lf->ref_deltas[INTRA_FRAME] = 2;
+lf->ref_deltas[LAST_FRAME] = 0;
+lf->ref_deltas[GOLDEN_FRAME] = -2;
+lf->ref_deltas[ALTREF_FRAME] = -2;
+lf->mode_deltas[0] = 0;   // Zero
+lf->mode_deltas[1] = 0;   // New mv
+}
+static void set_rd_speed_thresholds(VP9_COMP *cpi, int mode) {
+SPEED_FEATURES *sf = &cpi->sf;
+int i;
+// Set baseline threshold values
+for (i = 0; i < MAX_MODES; ++i)
+sf->thresh_mult[i] = mode == 0 ? -500 : 0;
+sf->thresh_mult[THR_NEARESTMV] = 0;
+sf->thresh_mult[THR_NEARESTG] = 0;
+sf->thresh_mult[THR_NEARESTA] = 0;
+sf->thresh_mult[THR_DC] += 1000;
+sf->thresh_mult[THR_NEWMV] += 1000;
+sf->thresh_mult[THR_NEWA] += 1000;
+sf->thresh_mult[THR_NEWG] += 1000;
+sf->thresh_mult[THR_NEARMV] += 1000;
+sf->thresh_mult[THR_NEARA] += 1000;
+sf->thresh_mult[THR_COMP_NEARESTLA] += 1000;
+sf->thresh_mult[THR_COMP_NEARESTGA] += 1000;
+sf->thresh_mult[THR_TM] += 1000;
+sf->thresh_mult[THR_COMP_NEARLA] += 1500;
+sf->thresh_mult[THR_COMP_NEWLA] += 2000;
+sf->thresh_mult[THR_NEARG] += 1000;
+sf->thresh_mult[THR_COMP_NEARGA] += 1500;
+sf->thresh_mult[THR_COMP_NEWGA] += 2000;
+sf->thresh_mult[THR_ZEROMV] += 2000;
+sf->thresh_mult[THR_ZEROG] += 2000;
+sf->thresh_mult[THR_ZEROA] += 2000;
+sf->thresh_mult[THR_COMP_ZEROLA] += 2500;
+sf->thresh_mult[THR_COMP_ZEROGA] += 2500;
+sf->thresh_mult[THR_H_PRED] += 2000;
+sf->thresh_mult[THR_V_PRED] += 2000;
+sf->thresh_mult[THR_D45_PRED ] += 2500;
+sf->thresh_mult[THR_D135_PRED] += 2500;
+sf->thresh_mult[THR_D117_PRED] += 2500;
+sf->thresh_mult[THR_D153_PRED] += 2500;
+sf->thresh_mult[THR_D207_PRED] += 2500;
+sf->thresh_mult[THR_D63_PRED] += 2500;
+/* disable frame modes if flags not set */
+if (!(cpi->ref_frame_flags & VP9_LAST_FLAG)) {
+sf->thresh_mult[THR_NEWMV    ] = INT_MAX;
+sf->thresh_mult[THR_NEARESTMV] = INT_MAX;
+sf->thresh_mult[THR_ZEROMV   ] = INT_MAX;
+sf->thresh_mult[THR_NEARMV   ] = INT_MAX;
+}
+if (!(cpi->ref_frame_flags & VP9_GOLD_FLAG)) {
+sf->thresh_mult[THR_NEARESTG ] = INT_MAX;
+sf->thresh_mult[THR_ZEROG    ] = INT_MAX;
+sf->thresh_mult[THR_NEARG    ] = INT_MAX;
+sf->thresh_mult[THR_NEWG     ] = INT_MAX;
+}
+if (!(cpi->ref_frame_flags & VP9_ALT_FLAG)) {
+sf->thresh_mult[THR_NEARESTA ] = INT_MAX;
+sf->thresh_mult[THR_ZEROA    ] = INT_MAX;
+sf->thresh_mult[THR_NEARA    ] = INT_MAX;
+sf->thresh_mult[THR_NEWA     ] = INT_MAX;
+}
+if ((cpi->ref_frame_flags & (VP9_LAST_FLAG | VP9_ALT_FLAG)) !=
+(VP9_LAST_FLAG | VP9_ALT_FLAG)) {
+sf->thresh_mult[THR_COMP_ZEROLA   ] = INT_MAX;
+sf->thresh_mult[THR_COMP_NEARESTLA] = INT_MAX;
+sf->thresh_mult[THR_COMP_NEARLA   ] = INT_MAX;
+sf->thresh_mult[THR_COMP_NEWLA    ] = INT_MAX;
+}
+if ((cpi->ref_frame_flags & (VP9_GOLD_FLAG | VP9_ALT_FLAG)) !=
+(VP9_GOLD_FLAG | VP9_ALT_FLAG)) {
+sf->thresh_mult[THR_COMP_ZEROGA   ] = INT_MAX;
+sf->thresh_mult[THR_COMP_NEARESTGA] = INT_MAX;
+sf->thresh_mult[THR_COMP_NEARGA   ] = INT_MAX;
+sf->thresh_mult[THR_COMP_NEWGA    ] = INT_MAX;
+}
+}
+static void set_rd_speed_thresholds_sub8x8(VP9_COMP *cpi, int mode) {
+SPEED_FEATURES *sf = &cpi->sf;
+int i;
+for (i = 0; i < MAX_REFS; ++i)
+sf->thresh_mult_sub8x8[i] = mode == 0 ? -500 : 0;
+sf->thresh_mult_sub8x8[THR_LAST] += 2500;
+sf->thresh_mult_sub8x8[THR_GOLD] += 2500;
+sf->thresh_mult_sub8x8[THR_ALTR] += 2500;
+sf->thresh_mult_sub8x8[THR_INTRA] += 2500;
+sf->thresh_mult_sub8x8[THR_COMP_LA] += 4500;
+sf->thresh_mult_sub8x8[THR_COMP_GA] += 4500;
+// Check for masked out split cases.
+for (i = 0; i < MAX_REFS; i++) {
+if (sf->disable_split_mask & (1 << i))
+sf->thresh_mult_sub8x8[i] = INT_MAX;
+}
+// disable mode test if frame flag is not set
+if (!(cpi->ref_frame_flags & VP9_LAST_FLAG))
+sf->thresh_mult_sub8x8[THR_LAST] = INT_MAX;
+if (!(cpi->ref_frame_flags & VP9_GOLD_FLAG))
+sf->thresh_mult_sub8x8[THR_GOLD] = INT_MAX;
+if (!(cpi->ref_frame_flags & VP9_ALT_FLAG))
+sf->thresh_mult_sub8x8[THR_ALTR] = INT_MAX;
+if ((cpi->ref_frame_flags & (VP9_LAST_FLAG | VP9_ALT_FLAG)) !=
+(VP9_LAST_FLAG | VP9_ALT_FLAG))
+sf->thresh_mult_sub8x8[THR_COMP_LA] = INT_MAX;
+if ((cpi->ref_frame_flags & (VP9_GOLD_FLAG | VP9_ALT_FLAG)) !=
+(VP9_GOLD_FLAG | VP9_ALT_FLAG))
+sf->thresh_mult_sub8x8[THR_COMP_GA] = INT_MAX;
+}
+void vp9_set_speed_features(VP9_COMP *cpi) {
+SPEED_FEATURES *sf = &cpi->sf;
+int mode = cpi->compressor_speed;
+int speed = cpi->speed;
+int i;
+// Only modes 0 and 1 supported for now in experimental code basae
+if (mode > 1)
+mode = 1;
+for (i = 0; i < MAX_MODES; ++i)
+cpi->mode_chosen_counts[i] = 0;
+// best quality defaults
+sf->RD = 1;
+sf->search_method = NSTEP;
+sf->auto_filter = 1;
+sf->recode_loop = 1;
+sf->subpel_search_method = SUBPEL_TREE;
+sf->subpel_iters_per_step = 2;
+sf->optimize_coefficients = !cpi->oxcf.lossless;
+sf->reduce_first_step_size = 0;
+sf->auto_mv_step_size = 0;
+sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
+sf->comp_inter_joint_search_thresh = BLOCK_4X4;
+sf->adaptive_rd_thresh = 0;
+sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_OFF;
+sf->tx_size_search_method = USE_FULL_RD;
+sf->use_lp32x32fdct = 0;
+sf->adaptive_motion_search = 0;
+sf->use_avoid_tested_higherror = 0;
+sf->reference_masking = 0;
+sf->use_one_partition_size_always = 0;
+sf->less_rectangular_check = 0;
+sf->use_square_partition_only = 0;
+sf->auto_min_max_partition_size = 0;
+sf->max_partition_size = BLOCK_64X64;
+sf->min_partition_size = BLOCK_4X4;
+sf->adjust_partitioning_from_last_frame = 0;
+sf->last_partitioning_redo_frequency = 4;
+sf->disable_split_mask = 0;
+sf->mode_search_skip_flags = 0;
+sf->disable_split_var_thresh = 0;
+sf->disable_filter_search_var_thresh = 0;
+for (i = 0; i < TX_SIZES; i++) {
+sf->intra_y_mode_mask[i] = ALL_INTRA_MODES;
+sf->intra_uv_mode_mask[i] = ALL_INTRA_MODES;
+}
+sf->use_rd_breakout = 0;
+sf->skip_encode_sb = 0;
+sf->use_uv_intra_rd_estimate = 0;
+sf->use_fast_lpf_pick = 0;
+sf->use_fast_coef_updates = 0;
+sf->using_small_partition_info = 0;
+sf->mode_skip_start = MAX_MODES;  // Mode index at which mode skip mask set
+#if CONFIG_MULTIPLE_ARF
+// Switch segmentation off.
+sf->static_segmentation = 0;
+#else
+sf->static_segmentation = 0;
+#endif
+switch (mode) {
+case 0:  // This is the best quality mode.
+break;
+case 1:
+#if CONFIG_MULTIPLE_ARF
+// Switch segmentation off.
+sf->static_segmentation = 0;
+#else
+sf->static_segmentation = 0;
+#endif
+sf->use_avoid_tested_higherror = 1;
+sf->adaptive_rd_thresh = 1;
+sf->recode_loop = (speed < 1);
+if (speed == 1) {
+sf->use_square_partition_only = !frame_is_intra_only(&cpi->common);
+sf->less_rectangular_check  = 1;
+sf->tx_size_search_method = frame_is_intra_only(&cpi->common)
+? USE_FULL_RD : USE_LARGESTALL;
+if (MIN(cpi->common.width, cpi->common.height) >= 720)
+sf->disable_split_mask = cpi->common.show_frame ?
+DISABLE_ALL_SPLIT : DISABLE_ALL_INTER_SPLIT;
+else
+sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;
+sf->use_rd_breakout = 1;
+sf->adaptive_motion_search = 1;
+sf->auto_mv_step_size = 1;
+sf->adaptive_rd_thresh = 2;
+sf->recode_loop = 2;
+sf->intra_y_mode_mask[TX_32X32] = INTRA_DC_H_V;
+sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC_H_V;
+sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;
+}
+if (speed == 2) {
+sf->use_square_partition_only = !frame_is_intra_only(&cpi->common);
+sf->less_rectangular_check  = 1;
+sf->tx_size_search_method = frame_is_intra_only(&cpi->common)
+? USE_FULL_RD : USE_LARGESTALL;
+if (MIN(cpi->common.width, cpi->common.height) >= 720)
+sf->disable_split_mask = cpi->common.show_frame ?
+DISABLE_ALL_SPLIT : DISABLE_ALL_INTER_SPLIT;
+else
+sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;
+sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
+FLAG_SKIP_INTRA_BESTINTER |
+FLAG_SKIP_COMP_BESTINTRA |
+FLAG_SKIP_INTRA_LOWVAR;
+sf->use_rd_breakout = 1;
+sf->adaptive_motion_search = 1;
+sf->auto_mv_step_size = 1;
+sf->disable_filter_search_var_thresh = 16;
+sf->comp_inter_joint_search_thresh = BLOCK_SIZES;
+sf->auto_min_max_partition_size = 1;
+sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_LOW_MOTION;
+sf->adjust_partitioning_from_last_frame = 1;
+sf->last_partitioning_redo_frequency = 3;
+sf->adaptive_rd_thresh = 2;
+sf->recode_loop = 2;
+sf->use_lp32x32fdct = 1;
+sf->mode_skip_start = 11;
+sf->intra_y_mode_mask[TX_32X32] = INTRA_DC_H_V;
+sf->intra_y_mode_mask[TX_16X16] = INTRA_DC_H_V;
+sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC_H_V;
+sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;
+}
+if (speed == 3) {
+sf->use_square_partition_only = 1;
+sf->tx_size_search_method = USE_LARGESTALL;
+if (MIN(cpi->common.width, cpi->common.height) >= 720)
+sf->disable_split_mask = DISABLE_ALL_SPLIT;
+else
+sf->disable_split_mask = DISABLE_ALL_INTER_SPLIT;
+sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
+FLAG_SKIP_INTRA_BESTINTER |
+FLAG_SKIP_COMP_BESTINTRA |
+FLAG_SKIP_INTRA_LOWVAR;
+sf->use_rd_breakout = 1;
+sf->adaptive_motion_search = 1;
+sf->auto_mv_step_size = 1;
+sf->disable_filter_search_var_thresh = 16;
+sf->comp_inter_joint_search_thresh = BLOCK_SIZES;
+sf->auto_min_max_partition_size = 1;
+sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_ALL;
+sf->adjust_partitioning_from_last_frame = 1;
+sf->last_partitioning_redo_frequency = 3;
+sf->use_uv_intra_rd_estimate = 1;
+sf->skip_encode_sb = 1;
+sf->use_lp32x32fdct = 1;
+sf->subpel_iters_per_step = 1;
+sf->use_fast_coef_updates = 2;
+sf->adaptive_rd_thresh = 4;
+sf->mode_skip_start = 6;
+}
+if (speed == 4) {
+sf->use_square_partition_only = 1;
+sf->tx_size_search_method = USE_LARGESTALL;
+sf->disable_split_mask = DISABLE_ALL_SPLIT;
+sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
+FLAG_SKIP_INTRA_BESTINTER |
+FLAG_SKIP_COMP_BESTINTRA |
+FLAG_SKIP_COMP_REFMISMATCH |
+FLAG_SKIP_INTRA_LOWVAR |
+FLAG_EARLY_TERMINATE;
+sf->use_rd_breakout = 1;
+sf->adaptive_motion_search = 1;
+sf->auto_mv_step_size = 1;
+sf->disable_filter_search_var_thresh = 16;
+sf->comp_inter_joint_search_thresh = BLOCK_SIZES;
+sf->auto_min_max_partition_size = 1;
+sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_ALL;
+sf->adjust_partitioning_from_last_frame = 1;
+sf->last_partitioning_redo_frequency = 3;
+sf->use_uv_intra_rd_estimate = 1;
+sf->skip_encode_sb = 1;
+sf->use_lp32x32fdct = 1;
+sf->subpel_iters_per_step = 1;
+sf->use_fast_coef_updates = 2;
+sf->adaptive_rd_thresh = 4;
+sf->mode_skip_start = 6;
+/* sf->intra_y_mode_mask = INTRA_DC_ONLY;
+sf->intra_uv_mode_mask = INTRA_DC_ONLY;
+sf->search_method = BIGDIA;
+sf->disable_split_var_thresh = 64;
+sf->disable_filter_search_var_thresh = 64; */
+}
+if (speed == 5) {
+sf->comp_inter_joint_search_thresh = BLOCK_SIZES;
+sf->use_one_partition_size_always = 1;
+sf->always_this_block_size = BLOCK_16X16;
+sf->tx_size_search_method = frame_is_intra_only(&cpi->common) ?
+USE_FULL_RD : USE_LARGESTALL;
+sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
+FLAG_SKIP_INTRA_BESTINTER |
+FLAG_SKIP_COMP_BESTINTRA |
+FLAG_SKIP_COMP_REFMISMATCH |
+FLAG_SKIP_INTRA_LOWVAR |
+FLAG_EARLY_TERMINATE;
+sf->use_rd_breakout = 1;
+sf->use_lp32x32fdct = 1;
+sf->optimize_coefficients = 0;
+sf->auto_mv_step_size = 1;
+// sf->reduce_first_step_size = 1;
+// sf->reference_masking = 1;
+sf->disable_split_mask = DISABLE_ALL_SPLIT;
+sf->search_method = HEX;
+sf->subpel_iters_per_step = 1;
+sf->disable_split_var_thresh = 64;
+sf->disable_filter_search_var_thresh = 96;
+for (i = 0; i < TX_SIZES; i++) {
+sf->intra_y_mode_mask[i] = INTRA_DC_ONLY;
+sf->intra_uv_mode_mask[i] = INTRA_DC_ONLY;
+}
+sf->use_fast_coef_updates = 2;
+sf->adaptive_rd_thresh = 4;
+sf->mode_skip_start = 6;
+}
+break;
+}; /* switch */
+// Set rd thresholds based on mode and speed setting
+set_rd_speed_thresholds(cpi, mode);
+set_rd_speed_thresholds_sub8x8(cpi, mode);
+// Slow quant, dct and trellis not worthwhile for first pass
+// so make sure they are always turned off.
+if (cpi->pass == 1) {
+sf->optimize_coefficients = 0;
+}
+// No recode for 1 pass.
+if (cpi->pass == 0) {
+sf->recode_loop = 0;
+sf->optimize_coefficients = 0;
+}
+cpi->mb.fwd_txm4x4 = vp9_fdct4x4;
+if (cpi->oxcf.lossless || cpi->mb.e_mbd.lossless) {
+cpi->mb.fwd_txm4x4 = vp9_fwht4x4;
+}
+if (cpi->sf.subpel_search_method == SUBPEL_ITERATIVE) {
+cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_iterative;
+cpi->find_fractional_mv_step_comp = vp9_find_best_sub_pixel_comp_iterative;
+} else if (cpi->sf.subpel_search_method == SUBPEL_TREE) {
+cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree;
+cpi->find_fractional_mv_step_comp = vp9_find_best_sub_pixel_comp_tree;
+}
+cpi->mb.optimize = cpi->sf.optimize_coefficients == 1 && cpi->pass != 1;
+#ifdef SPEEDSTATS
+frames_at_speed[cpi->speed]++;
+#endif
+}
+static void alloc_raw_frame_buffers(VP9_COMP *cpi) {
+VP9_COMMON *cm = &cpi->common;
+cpi->lookahead = vp9_lookahead_init(cpi->oxcf.width, cpi->oxcf.height,
+cm->subsampling_x, cm->subsampling_y,
+cpi->oxcf.lag_in_frames);
+if (!cpi->lookahead)
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate lag buffers");
+if (vp9_realloc_frame_buffer(&cpi->alt_ref_buffer,
+cpi->oxcf.width, cpi->oxcf.height,
+cm->subsampling_x, cm->subsampling_y,
+VP9BORDERINPIXELS))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate altref buffer");
+}
+void vp9_alloc_compressor_data(VP9_COMP *cpi) {
+VP9_COMMON *cm = &cpi->common;
+if (vp9_alloc_frame_buffers(cm, cm->width, cm->height))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate frame buffers");
+if (vp9_alloc_frame_buffer(&cpi->last_frame_uf,
+cm->width, cm->height,
+cm->subsampling_x, cm->subsampling_y,
+VP9BORDERINPIXELS))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate last frame buffer");
+if (vp9_alloc_frame_buffer(&cpi->scaled_source,
+cm->width, cm->height,
+cm->subsampling_x, cm->subsampling_y,
+VP9BORDERINPIXELS))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to allocate scaled source buffer");
+vpx_free(cpi->tok);
+{
+unsigned int tokens = get_token_alloc(cm->mb_rows, cm->mb_cols);
+CHECK_MEM_ERROR(cm, cpi->tok, vpx_calloc(tokens, sizeof(*cpi->tok)));
+}
+vpx_free(cpi->mb_activity_map);
+CHECK_MEM_ERROR(cm, cpi->mb_activity_map,
+vpx_calloc(sizeof(unsigned int),
+cm->mb_rows * cm->mb_cols));
+vpx_free(cpi->mb_norm_activity_map);
+CHECK_MEM_ERROR(cm, cpi->mb_norm_activity_map,
+vpx_calloc(sizeof(unsigned int),
+cm->mb_rows * cm->mb_cols));
+// 2 contexts per 'mi unit', so that we have one context per 4x4 txfm
+// block where mi unit size is 8x8.
+vpx_free(cpi->above_context[0]);
+CHECK_MEM_ERROR(cm, cpi->above_context[0],
+vpx_calloc(2 * mi_cols_aligned_to_sb(cm->mi_cols) *
+MAX_MB_PLANE,
+sizeof(*cpi->above_context[0])));
+vpx_free(cpi->above_seg_context);
+CHECK_MEM_ERROR(cm, cpi->above_seg_context,
+vpx_calloc(mi_cols_aligned_to_sb(cm->mi_cols),
+sizeof(*cpi->above_seg_context)));
+}
+static void update_frame_size(VP9_COMP *cpi) {
+VP9_COMMON *cm = &cpi->common;
+vp9_update_frame_size(cm);
+// Update size of buffers local to this frame
+if (vp9_realloc_frame_buffer(&cpi->last_frame_uf,
+cm->width, cm->height,
+cm->subsampling_x, cm->subsampling_y,
+VP9BORDERINPIXELS))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to reallocate last frame buffer");
+if (vp9_realloc_frame_buffer(&cpi->scaled_source,
+cm->width, cm->height,
+cm->subsampling_x, cm->subsampling_y,
+VP9BORDERINPIXELS))
+vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+"Failed to reallocate scaled source buffer");
+{
+int y_stride = cpi->scaled_source.y_stride;
+if (cpi->sf.search_method == NSTEP) {
+vp9_init3smotion_compensation(&cpi->mb, y_stride);
+} else if (cpi->sf.search_method == DIAMOND) {
+vp9_init_dsmotion_compensation(&cpi->mb, y_stride);
+}
+}
+{
+int i;
+for (i = 1; i < MAX_MB_PLANE; ++i) {
+cpi->above_context[i] = cpi->above_context[0] +
+i * sizeof(*cpi->above_context[0]) * 2 *
+mi_cols_aligned_to_sb(cm->mi_cols);
+}
+}
+}
+// Table that converts 0-63 Q range values passed in outside to the Qindex
+// range used internally.
+static const int q_trans[] = {
+0,    4,   8,  12,  16,  20,  24,  28,
+32,   36,  40,  44,  48,  52,  56,  60,
+64,   68,  72,  76,  80,  84,  88,  92,
+96,  100, 104, 108, 112, 116, 120, 124,
+128, 132, 136, 140, 144, 148, 152, 156,
+160, 164, 168, 172, 176, 180, 184, 188,
+192, 196, 200, 204, 208, 212, 216, 220,
+224, 228, 232, 236, 240, 244, 249, 255,
+};
+int vp9_reverse_trans(int x) {
+int i;
+for (i = 0; i < 64; i++)
+if (q_trans[i] >= x)
+return i;
+return 63;
+};
+void vp9_new_framerate(VP9_COMP *cpi, double framerate) {
+if (framerate < 0.1)
+framerate = 30;
+cpi->oxcf.framerate = framerate;
+cpi->output_framerate = cpi->oxcf.framerate;
+cpi->per_frame_bandwidth = (int)(cpi->oxcf.target_bandwidth
+/ cpi->output_framerate);
+cpi->av_per_frame_bandwidth = (int)(cpi->oxcf.target_bandwidth
+/ cpi->output_framerate);
+cpi->min_frame_bandwidth = (int)(cpi->av_per_frame_bandwidth *
+cpi->oxcf.two_pass_vbrmin_section / 100);
+cpi->min_frame_bandwidth = MAX(cpi->min_frame_bandwidth, FRAME_OVERHEAD_BITS);
+// Set Maximum gf/arf interval
+cpi->max_gf_interval = 16;
+// Extended interval for genuinely static scenes
+cpi->twopass.static_scene_max_gf_interval = cpi->key_frame_frequency >> 1;
+// Special conditions when alt 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 int64_t rescale(int val, int64_t num, int denom) {
+int64_t llnum = num;
+int64_t llden = denom;
+int64_t llval = val;
+return (llval * llnum / llden);
+}
+static void set_tile_limits(VP9_COMP *cpi) {
+VP9_COMMON *const cm = &cpi->common;
+int min_log2_tile_cols, max_log2_tile_cols;
+vp9_get_tile_n_bits(cm->mi_cols, &min_log2_tile_cols, &max_log2_tile_cols);
+cm->log2_tile_cols = clamp(cpi->oxcf.tile_columns,
+min_log2_tile_cols, max_log2_tile_cols);
+cm->log2_tile_rows = cpi->oxcf.tile_rows;
+}
+static void init_config(VP9_PTR ptr, VP9_CONFIG *oxcf) {
+VP9_COMP *cpi = (VP9_COMP *)(ptr);
+VP9_COMMON *const cm = &cpi->common;
+int i;
+cpi->oxcf = *oxcf;
+cm->version = oxcf->version;
+cm->width = oxcf->width;
+cm->height = oxcf->height;
+cm->subsampling_x = 0;
+cm->subsampling_y = 0;
+vp9_alloc_compressor_data(cpi);
+// change includes all joint functionality
+vp9_change_config(ptr, 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;
+cpi->static_mb_pct = 0;
+cpi->lst_fb_idx = 0;
+cpi->gld_fb_idx = 1;
+cpi->alt_fb_idx = 2;
+cpi->current_layer = 0;
+cpi->use_svc = 0;
+set_tile_limits(cpi);
+cpi->fixed_divide[0] = 0;
+for (i = 1; i < 512; i++)
+cpi->fixed_divide[i] = 0x80000 / i;
+}
+void vp9_change_config(VP9_PTR ptr, VP9_CONFIG *oxcf) {
+VP9_COMP *cpi = (VP9_COMP *)(ptr);
+VP9_COMMON *const cm = &cpi->common;
+if (!cpi || !oxcf)
+return;
+if (cm->version != oxcf->version) {
+cm->version = oxcf->version;
+}
+cpi->oxcf = *oxcf;
+switch (cpi->oxcf.Mode) {
+// Real time and one pass deprecated in test code base
+case MODE_GOODQUALITY:
+cpi->pass = 0;
+cpi->compressor_speed = 2;
+cpi->oxcf.cpu_used = clamp(cpi->oxcf.cpu_used, -5, 5);
+break;
+case MODE_FIRSTPASS:
+cpi->pass = 1;
+cpi->compressor_speed = 1;
+break;
+case MODE_SECONDPASS:
+cpi->pass = 2;
+cpi->compressor_speed = 1;
+cpi->oxcf.cpu_used = clamp(cpi->oxcf.cpu_used, -5, 5);
+break;
+case MODE_SECONDPASS_BEST:
+cpi->pass = 2;
+cpi->compressor_speed = 0;
+break;
+}
+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];
+cpi->oxcf.lossless = oxcf->lossless;
+cpi->mb.e_mbd.itxm_add = cpi->oxcf.lossless ? vp9_iwht4x4_add
+: vp9_idct4x4_add;
+cpi->baseline_gf_interval = DEFAULT_GF_INTERVAL;
+cpi->ref_frame_flags = VP9_ALT_FLAG | VP9_GOLD_FLAG | VP9_LAST_FLAG;
+// cpi->use_golden_frame_only = 0;
+// cpi->use_last_frame_only = 0;
+cpi->refresh_golden_frame = 0;
+cpi->refresh_last_frame = 1;
+cm->refresh_frame_context = 1;
+cm->reset_frame_context = 0;
+setup_features(cm);
+cpi->common.allow_high_precision_mv = 0;  // Default mv precision
+set_mvcost(cpi);
+{
+int i;
+for (i = 0; i < MAX_SEGMENTS; i++)
+cpi->segment_encode_breakout[i] = cpi->oxcf.encode_breakout;
+}
+// At the moment the first order values may not be > MAXQ
+cpi->oxcf.fixed_q = MIN(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;
+}
+// Convert target bandwidth from Kbit/s to Bit/s
+cpi->oxcf.target_bandwidth       *= 1000;
+cpi->oxcf.starting_buffer_level = rescale(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(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(cpi->oxcf.maximum_buffer_size,
+cpi->oxcf.target_bandwidth, 1000);
+// Set up frame rate and related parameters rate control values.
+vp9_new_framerate(cpi, cpi->oxcf.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
+cpi->active_worst_quality = clamp(cpi->active_worst_quality,
+cpi->oxcf.best_allowed_q,
+cpi->oxcf.worst_allowed_q);
+cpi->active_best_quality = clamp(cpi->active_best_quality,
+cpi->oxcf.best_allowed_q,
+cpi->oxcf.worst_allowed_q);
+cpi->buffered_mode = cpi->oxcf.optimal_buffer_level > 0;
+cpi->cq_target_quality = cpi->oxcf.cq_level;
+cm->mcomp_filter_type = DEFAULT_INTERP_FILTER;
+cpi->target_bandwidth = cpi->oxcf.target_bandwidth;
+cm->display_width = cpi->oxcf.width;
+cm->display_height = cpi->oxcf.height;
+// VP8 sharpness level mapping 0-7 (vs 0-10 in general VPx dialogs)
+cpi->oxcf.Sharpness = MIN(7, cpi->oxcf.Sharpness);
+cpi->common.lf.sharpness_level = cpi->oxcf.Sharpness;
+if (cpi->initial_width) {
+// Increasing the size of the frame beyond the first seen frame, or some
+// otherwise signalled maximum size, is not supported.
+// TODO(jkoleszar): exit gracefully.
+assert(cm->width <= cpi->initial_width);
+assert(cm->height <= cpi->initial_height);
+}
+update_frame_size(cpi);
+if (cpi->oxcf.fixed_q >= 0) {
+cpi->last_q[0] = cpi->oxcf.fixed_q;
+cpi->last_q[1] = cpi->oxcf.fixed_q;
+cpi->last_boosted_qindex = cpi->oxcf.fixed_q;
+}
+cpi->speed = cpi->oxcf.cpu_used;
+if (cpi->oxcf.lag_in_frames == 0) {
+// force to allowlag to 0 if lag_in_frames is 0;
+cpi->oxcf.allow_lag = 0;
+} else if (cpi->oxcf.lag_in_frames > MAX_LAG_BUFFERS) {
+// Limit on lag buffers as these are not currently dynamically allocated
+cpi->oxcf.lag_in_frames = MAX_LAG_BUFFERS;
+}
+// YX Temp
+#if CONFIG_MULTIPLE_ARF
+vp9_zero(cpi->alt_ref_source);
+#else
+cpi->alt_ref_source = NULL;
+#endif
+cpi->is_src_frame_alt_ref = 0;
+#if 0
+// Experimental RD Code
+cpi->frame_distortion = 0;
+cpi->last_frame_distortion = 0;
+#endif
+set_tile_limits(cpi);
+}
+#define M_LOG2_E 0.693147180559945309417
+#define log2f(x) (log (x) / (float) M_LOG2_E)
+static void cal_nmvjointsadcost(int *mvjointsadcost) {
+mvjointsadcost[0] = 600;
+mvjointsadcost[1] = 300;
+mvjointsadcost[2] = 300;
+mvjointsadcost[0] = 300;
+}
+static void cal_nmvsadcosts(int *mvsadcost[2]) {
+int i = 1;
+mvsadcost[0][0] = 0;
+mvsadcost[1][0] = 0;
+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 <= MV_MAX);
+}
+static void cal_nmvsadcosts_hp(int *mvsadcost[2]) {
+int i = 1;
+mvsadcost[0][0] = 0;
+mvsadcost[1][0] = 0;
+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 <= MV_MAX);
+}
+static void alloc_mode_context(VP9_COMMON *cm, int num_4x4_blk,
+PICK_MODE_CONTEXT *ctx) {
+int num_pix = num_4x4_blk << 4;
+int i, k;
+ctx->num_4x4_blk = num_4x4_blk;
+CHECK_MEM_ERROR(cm, ctx->zcoeff_blk,
+vpx_calloc(num_4x4_blk, sizeof(uint8_t)));
+for (i = 0; i < MAX_MB_PLANE; ++i) {
+for (k = 0; k < 3; ++k) {
+CHECK_MEM_ERROR(cm, ctx->coeff[i][k],
+vpx_memalign(16, num_pix * sizeof(int16_t)));
+CHECK_MEM_ERROR(cm, ctx->qcoeff[i][k],
+vpx_memalign(16, num_pix * sizeof(int16_t)));
+CHECK_MEM_ERROR(cm, ctx->dqcoeff[i][k],
+vpx_memalign(16, num_pix * sizeof(int16_t)));
+CHECK_MEM_ERROR(cm, ctx->eobs[i][k],
+vpx_memalign(16, num_pix * sizeof(uint16_t)));
+ctx->coeff_pbuf[i][k]   = ctx->coeff[i][k];
+ctx->qcoeff_pbuf[i][k]  = ctx->qcoeff[i][k];
+ctx->dqcoeff_pbuf[i][k] = ctx->dqcoeff[i][k];
+ctx->eobs_pbuf[i][k]    = ctx->eobs[i][k];
+}
+}
+}
+static void free_mode_context(PICK_MODE_CONTEXT *ctx) {
+int i, k;
+vpx_free(ctx->zcoeff_blk);
+ctx->zcoeff_blk = 0;
+for (i = 0; i < MAX_MB_PLANE; ++i) {
+for (k = 0; k < 3; ++k) {
+vpx_free(ctx->coeff[i][k]);
+ctx->coeff[i][k] = 0;
+vpx_free(ctx->qcoeff[i][k]);
+ctx->qcoeff[i][k] = 0;
+vpx_free(ctx->dqcoeff[i][k]);
+ctx->dqcoeff[i][k] = 0;
+vpx_free(ctx->eobs[i][k]);
+ctx->eobs[i][k] = 0;
+}
+}
+}
+static void init_pick_mode_context(VP9_COMP *cpi) {
+int i;
+VP9_COMMON *const cm = &cpi->common;
+MACROBLOCK *const x  = &cpi->mb;
+for (i = 0; i < BLOCK_SIZES; ++i) {
+const int num_4x4_w = num_4x4_blocks_wide_lookup[i];
+const int num_4x4_h = num_4x4_blocks_high_lookup[i];
+const int num_4x4_blk = MAX(4, num_4x4_w * num_4x4_h);
+if (i < BLOCK_16X16) {
+for (x->sb_index = 0; x->sb_index < 4; ++x->sb_index) {
+for (x->mb_index = 0; x->mb_index < 4; ++x->mb_index) {
+for (x->b_index = 0; x->b_index < 16 / num_4x4_blk; ++x->b_index) {
+PICK_MODE_CONTEXT *ctx = get_block_context(x, i);
+alloc_mode_context(cm, num_4x4_blk, ctx);
+}
+}
+}
+} else if (i < BLOCK_32X32) {
+for (x->sb_index = 0; x->sb_index < 4; ++x->sb_index) {
+for (x->mb_index = 0; x->mb_index < 64 / num_4x4_blk; ++x->mb_index) {
+PICK_MODE_CONTEXT *ctx = get_block_context(x, i);
+ctx->num_4x4_blk = num_4x4_blk;
+alloc_mode_context(cm, num_4x4_blk, ctx);
+}
+}
+} else if (i < BLOCK_64X64) {
+for (x->sb_index = 0; x->sb_index < 256 / num_4x4_blk; ++x->sb_index) {
+PICK_MODE_CONTEXT *ctx = get_block_context(x, i);
+ctx->num_4x4_blk = num_4x4_blk;
+alloc_mode_context(cm, num_4x4_blk, ctx);
+}
+} else {
+PICK_MODE_CONTEXT *ctx = get_block_context(x, i);
+ctx->num_4x4_blk = num_4x4_blk;
+alloc_mode_context(cm, num_4x4_blk, ctx);
+}
+}
+}
+static void free_pick_mode_context(MACROBLOCK *x) {
+int i;
+for (i = 0; i < BLOCK_SIZES; ++i) {
+const int num_4x4_w = num_4x4_blocks_wide_lookup[i];
+const int num_4x4_h = num_4x4_blocks_high_lookup[i];
+const int num_4x4_blk = MAX(4, num_4x4_w * num_4x4_h);
+if (i < BLOCK_16X16) {
+for (x->sb_index = 0; x->sb_index < 4; ++x->sb_index) {
+for (x->mb_index = 0; x->mb_index < 4; ++x->mb_index) {
+for (x->b_index = 0; x->b_index < 16 / num_4x4_blk; ++x->b_index) {
+PICK_MODE_CONTEXT *ctx = get_block_context(x, i);
+free_mode_context(ctx);
+}
+}
+}
+} else if (i < BLOCK_32X32) {
+for (x->sb_index = 0; x->sb_index < 4; ++x->sb_index) {
+for (x->mb_index = 0; x->mb_index < 64 / num_4x4_blk; ++x->mb_index) {
+PICK_MODE_CONTEXT *ctx = get_block_context(x, i);
+free_mode_context(ctx);
+}
+}
+} else if (i < BLOCK_64X64) {
+for (x->sb_index = 0; x->sb_index < 256 / num_4x4_blk; ++x->sb_index) {
+PICK_MODE_CONTEXT *ctx = get_block_context(x, i);
+free_mode_context(ctx);
+}
+} else {
+PICK_MODE_CONTEXT *ctx = get_block_context(x, i);
+free_mode_context(ctx);
+}
+}
+}
+VP9_PTR vp9_create_compressor(VP9_CONFIG *oxcf) {
+int i, j;
+volatile union {
+VP9_COMP *cpi;
+VP9_PTR   ptr;
+} ctx;
+VP9_COMP *cpi;
+VP9_COMMON *cm;
+cpi = ctx.cpi = vpx_memalign(32, sizeof(VP9_COMP));
+// Check that the CPI instance is valid
+if (!cpi)
+return 0;
+cm = &cpi->common;
+vp9_zero(*cpi);
+if (setjmp(cm->error.jmp)) {
+VP9_PTR ptr = ctx.ptr;
+ctx.cpi->common.error.setjmp = 0;
+vp9_remove_compressor(&ptr);
+return 0;
+}
+cm->error.setjmp = 1;
+CHECK_MEM_ERROR(cm, cpi->mb.ss, vpx_calloc(sizeof(search_site),
+(MAX_MVSEARCH_STEPS * 8) + 1));
+vp9_create_common(cm);
+init_config((VP9_PTR)cpi, oxcf);
+init_pick_mode_context(cpi);
+cm->current_video_frame   = 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;
+// Set reference frame sign bias for ALTREF frame to 1 (for now)
+cm->ref_frame_sign_bias[ALTREF_FRAME] = 1;
+cpi->baseline_gf_interval = DEFAULT_GF_INTERVAL;
+cpi->gold_is_last = 0;
+cpi->alt_is_last  = 0;
+cpi->gold_is_alt  = 0;
+// Spatial scalability
+cpi->number_spatial_layers = oxcf->ss_number_layers;
+// Create the encoder segmentation map and set all entries to 0
+CHECK_MEM_ERROR(cm, cpi->segmentation_map,
+vpx_calloc(cm->mi_rows * cm->mi_cols, 1));
+// And a place holder structure is the coding context
+// for use if we want to save and restore it
+CHECK_MEM_ERROR(cm, cpi->coding_context.last_frame_seg_map_copy,
+vpx_calloc(cm->mi_rows * cm->mi_cols, 1));
+CHECK_MEM_ERROR(cm, cpi->active_map, vpx_calloc(cm->MBs, 1));
+vpx_memset(cpi->active_map, 1, cm->MBs);
+cpi->active_map_enabled = 0;
+for (i = 0; i < (sizeof(cpi->mbgraph_stats) /
+sizeof(cpi->mbgraph_stats[0])); i++) {
+CHECK_MEM_ERROR(cm, cpi->mbgraph_stats[i].mb_stats,
+vpx_calloc(cm->MBs *
+sizeof(*cpi->mbgraph_stats[i].mb_stats), 1));
+}
+#ifdef ENTROPY_STATS
+if (cpi->pass != 1)
+init_context_counters();
+#endif
+#ifdef MODE_STATS
+init_tx_count_stats();
+init_switchable_interp_stats();
+#endif
+/*Initialize the feed-forward activity masking.*/
+cpi->activity_avg = 90 << 12;
+cpi->frames_since_key = 8;  // Sensible default for first frame.
+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->refresh_alt_ref_frame = 0;
+#if CONFIG_MULTIPLE_ARF
+// Turn multiple ARF usage on/off. This is a quick hack for the initial test
+// version. It should eventually be set via the codec API.
+cpi->multi_arf_enabled = 1;
+if (cpi->multi_arf_enabled) {
+cpi->sequence_number = 0;
+cpi->frame_coding_order_period = 0;
+vp9_zero(cpi->frame_coding_order);
+vp9_zero(cpi->arf_buffer_idx);
+}
+#endif
+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;
+cpi->summedp_quality = 0;
+cpi->summedp_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 = INT64_MAX;
+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->tot_q = 0.0;
+cpi->avg_q = vp9_convert_qindex_to_q(cpi->oxcf.worst_allowed_q);
+cpi->total_byte_count             = 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;
+cal_nmvjointsadcost(cpi->mb.nmvjointsadcost);
+cpi->mb.nmvcost[0] = &cpi->mb.nmvcosts[0][MV_MAX];
+cpi->mb.nmvcost[1] = &cpi->mb.nmvcosts[1][MV_MAX];
+cpi->mb.nmvsadcost[0] = &cpi->mb.nmvsadcosts[0][MV_MAX];
+cpi->mb.nmvsadcost[1] = &cpi->mb.nmvsadcosts[1][MV_MAX];
+cal_nmvsadcosts(cpi->mb.nmvsadcost);
+cpi->mb.nmvcost_hp[0] = &cpi->mb.nmvcosts_hp[0][MV_MAX];
+cpi->mb.nmvcost_hp[1] = &cpi->mb.nmvcosts_hp[1][MV_MAX];
+cpi->mb.nmvsadcost_hp[0] = &cpi->mb.nmvsadcosts_hp[0][MV_MAX];
+cpi->mb.nmvsadcost_hp[1] = &cpi->mb.nmvsadcosts_hp[1][MV_MAX];
+cal_nmvsadcosts_hp(cpi->mb.nmvsadcost_hp);
+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
+#ifdef OUTPUT_YUV_REC
+yuv_rec_file = fopen("rec.yuv", "wb");
+#endif
+#if 0
+framepsnr = fopen("framepsnr.stt", "a");
+kf_list = fopen("kf_list.stt", "w");
+#endif
+cpi->output_pkt_list = oxcf->output_pkt_list;
+cpi->enable_encode_breakout = 1;
+if (cpi->pass == 1) {
+vp9_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);
+vp9_init_second_pass(cpi);
+}
+vp9_set_speed_features(cpi);
+// Default rd threshold factors for mode selection
+for (i = 0; i < BLOCK_SIZES; ++i) {
+for (j = 0; j < MAX_MODES; ++j)
+cpi->rd_thresh_freq_fact[i][j] = 32;
+for (j = 0; j < MAX_REFS; ++j)
+cpi->rd_thresh_freq_sub8x8[i][j] = 32;
+}
+#define BFP(BT, SDF, SDAF, VF, SVF, SVAF, SVFHH, SVFHV, SVFHHV, \
+SDX3F, SDX8F, SDX4DF)\
+cpi->fn_ptr[BT].sdf            = SDF; \
+cpi->fn_ptr[BT].sdaf           = SDAF; \
+cpi->fn_ptr[BT].vf             = VF; \
+cpi->fn_ptr[BT].svf            = SVF; \
+cpi->fn_ptr[BT].svaf           = SVAF; \
+cpi->fn_ptr[BT].svf_halfpix_h  = SVFHH; \
+cpi->fn_ptr[BT].svf_halfpix_v  = SVFHV; \
+cpi->fn_ptr[BT].svf_halfpix_hv = SVFHHV; \
+cpi->fn_ptr[BT].sdx3f          = SDX3F; \
+cpi->fn_ptr[BT].sdx8f          = SDX8F; \
+cpi->fn_ptr[BT].sdx4df         = SDX4DF;
+BFP(BLOCK_32X16, vp9_sad32x16, vp9_sad32x16_avg,
+vp9_variance32x16, vp9_sub_pixel_variance32x16,
+vp9_sub_pixel_avg_variance32x16, NULL, NULL,
+NULL, NULL, NULL,
+vp9_sad32x16x4d)
+BFP(BLOCK_16X32, vp9_sad16x32, vp9_sad16x32_avg,
+vp9_variance16x32, vp9_sub_pixel_variance16x32,
+vp9_sub_pixel_avg_variance16x32, NULL, NULL,
+NULL, NULL, NULL,
+vp9_sad16x32x4d)
+BFP(BLOCK_64X32, vp9_sad64x32, vp9_sad64x32_avg,
+vp9_variance64x32, vp9_sub_pixel_variance64x32,
+vp9_sub_pixel_avg_variance64x32, NULL, NULL,
+NULL, NULL, NULL,
+vp9_sad64x32x4d)
+BFP(BLOCK_32X64, vp9_sad32x64, vp9_sad32x64_avg,
+vp9_variance32x64, vp9_sub_pixel_variance32x64,
+vp9_sub_pixel_avg_variance32x64, NULL, NULL,
+NULL, NULL, NULL,
+vp9_sad32x64x4d)
+BFP(BLOCK_32X32, vp9_sad32x32, vp9_sad32x32_avg,
+vp9_variance32x32, vp9_sub_pixel_variance32x32,
+vp9_sub_pixel_avg_variance32x32, vp9_variance_halfpixvar32x32_h,
+vp9_variance_halfpixvar32x32_v,
+vp9_variance_halfpixvar32x32_hv, vp9_sad32x32x3, vp9_sad32x32x8,
+vp9_sad32x32x4d)
+BFP(BLOCK_64X64, vp9_sad64x64, vp9_sad64x64_avg,
+vp9_variance64x64, vp9_sub_pixel_variance64x64,
+vp9_sub_pixel_avg_variance64x64, vp9_variance_halfpixvar64x64_h,
+vp9_variance_halfpixvar64x64_v,
+vp9_variance_halfpixvar64x64_hv, vp9_sad64x64x3, vp9_sad64x64x8,
+vp9_sad64x64x4d)
+BFP(BLOCK_16X16, vp9_sad16x16, vp9_sad16x16_avg,
+vp9_variance16x16, vp9_sub_pixel_variance16x16,
+vp9_sub_pixel_avg_variance16x16, vp9_variance_halfpixvar16x16_h,
+vp9_variance_halfpixvar16x16_v,
+vp9_variance_halfpixvar16x16_hv, vp9_sad16x16x3, vp9_sad16x16x8,
+vp9_sad16x16x4d)
+BFP(BLOCK_16X8, vp9_sad16x8, vp9_sad16x8_avg,
+vp9_variance16x8, vp9_sub_pixel_variance16x8,
+vp9_sub_pixel_avg_variance16x8, NULL, NULL, NULL,
+vp9_sad16x8x3, vp9_sad16x8x8, vp9_sad16x8x4d)
+BFP(BLOCK_8X16, vp9_sad8x16, vp9_sad8x16_avg,
+vp9_variance8x16, vp9_sub_pixel_variance8x16,
+vp9_sub_pixel_avg_variance8x16, NULL, NULL, NULL,
+vp9_sad8x16x3, vp9_sad8x16x8, vp9_sad8x16x4d)
+BFP(BLOCK_8X8, vp9_sad8x8, vp9_sad8x8_avg,
+vp9_variance8x8, vp9_sub_pixel_variance8x8,
+vp9_sub_pixel_avg_variance8x8, NULL, NULL, NULL,
+vp9_sad8x8x3, vp9_sad8x8x8, vp9_sad8x8x4d)
+BFP(BLOCK_8X4, vp9_sad8x4, vp9_sad8x4_avg,
+vp9_variance8x4, vp9_sub_pixel_variance8x4,
+vp9_sub_pixel_avg_variance8x4, NULL, NULL,
+NULL, NULL, vp9_sad8x4x8,
+vp9_sad8x4x4d)
+BFP(BLOCK_4X8, vp9_sad4x8, vp9_sad4x8_avg,
+vp9_variance4x8, vp9_sub_pixel_variance4x8,
+vp9_sub_pixel_avg_variance4x8, NULL, NULL,
+NULL, NULL, vp9_sad4x8x8,
+vp9_sad4x8x4d)
+BFP(BLOCK_4X4, vp9_sad4x4, vp9_sad4x4_avg,
+vp9_variance4x4, vp9_sub_pixel_variance4x4,
+vp9_sub_pixel_avg_variance4x4, NULL, NULL, NULL,
+vp9_sad4x4x3, vp9_sad4x4x8, vp9_sad4x4x4d)
+cpi->full_search_sad = vp9_full_search_sad;
+cpi->diamond_search_sad = vp9_diamond_search_sad;
+cpi->refining_search_sad = vp9_refining_search_sad;
+// make sure frame 1 is okay
+cpi->error_bins[0] = cpi->common.MBs;
+/* vp9_init_quantizer() is first called here. Add check in
+* vp9_frame_init_quantizer() so that vp9_init_quantizer is only
+* called later when needed. This will avoid unnecessary calls of
+* vp9_init_quantizer() for every frame.
+*/
+vp9_init_quantizer(cpi);
+vp9_loop_filter_init(cm);
+cpi->common.error.setjmp = 0;
+vp9_zero(cpi->y_uv_mode_count);
+#ifdef MODE_TEST_HIT_STATS
+vp9_zero(cpi->mode_test_hits);
+#endif
+return (VP9_PTR) cpi;
+}
+void vp9_remove_compressor(VP9_PTR *ptr) {
+VP9_COMP *cpi = (VP9_COMP *)(*ptr);
+int i;
+if (!cpi)
+return;
+if (cpi && (cpi->common.current_video_frame > 0)) {
+if (cpi->pass == 2) {
+vp9_end_second_pass(cpi);
+}
+#ifdef ENTROPY_STATS
+if (cpi->pass != 1) {
+print_context_counters();
+print_tree_update_probs();
+print_mode_context(cpi);
+}
+#endif
+#ifdef MODE_STATS
+if (cpi->pass != 1) {
+write_tx_count_stats();
+write_switchable_interp_stats();
+}
+#endif
+#if CONFIG_INTERNAL_STATS
+vp9_clear_system_state();
+// printf("\n8x8-4x4:%d-%d\n", cpi->t8x8_count, cpi->t4x4_count);
+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 * (double) 8 / (double)1000
+/ time_encoded;
+if (cpi->b_calculate_psnr) {
+YV12_BUFFER_CONFIG *lst_yv12 =
+&cpi->common.yv12_fb[cpi->common.ref_frame_map[cpi->lst_fb_idx]];
+double samples = 3.0 / 2 * cpi->count *
+lst_yv12->y_width * lst_yv12->y_height;
+double total_psnr = vp9_mse2psnr(samples, 255.0, cpi->total_sq_error);
+double total_psnr2 = vp9_mse2psnr(samples, 255.0, cpi->total_sq_error2);
+double total_ssim = 100 * pow(cpi->summed_quality /
+cpi->summed_weights, 8.0);
+double total_ssimp = 100 * pow(cpi->summedp_quality /
+cpi->summedp_weights, 8.0);
+fprintf(f, "Bitrate\tAVGPsnr\tGLBPsnr\tAVPsnrP\tGLPsnrP\t"
+"VPXSSIM\tVPSSIMP\t  Time(ms)\n");
+fprintf(f, "%7.2f\t%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_ssimp,
+total_encode_time);
+}
+if (cpi->b_calculate_ssimg) {
+fprintf(f, "BitRate\tSSIM_Y\tSSIM_U\tSSIM_V\tSSIM_A\t  Time(ms)\n");
+fprintf(f, "%7.2f\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);
+}
+#endif
+#ifdef MODE_TEST_HIT_STATS
+if (cpi->pass != 1) {
+double norm_per_pixel_mode_tests = 0;
+double norm_counts[BLOCK_SIZES];
+int i;
+int sb64_per_frame;
+int norm_factors[BLOCK_SIZES] =
+{256, 128, 128, 64, 32, 32, 16, 8, 8, 4, 2, 2, 1};
+FILE *f = fopen("mode_hit_stats.stt", "a");
+// On average, how many mode tests do we do
+for (i = 0; i < BLOCK_SIZES; ++i) {
+norm_counts[i] = (double)cpi->mode_test_hits[i] /
+(double)norm_factors[i];
+norm_per_pixel_mode_tests += norm_counts[i];
+}
+// Convert to a number per 64x64 and per frame
+sb64_per_frame = ((cpi->common.height + 63) / 64) *
+((cpi->common.width + 63) / 64);
+norm_per_pixel_mode_tests =
+norm_per_pixel_mode_tests /
+(double)(cpi->common.current_video_frame * sb64_per_frame);
+fprintf(f, "%6.4f\n", norm_per_pixel_mode_tests);
+fclose(f);
+}
+#endif
+#ifdef ENTROPY_STATS
+{
+int i, j, k;
+FILE *fmode = fopen("vp9_modecontext.c", "w");
+fprintf(fmode, "\n#include \"vp9_entropymode.h\"\n\n");
+fprintf(fmode, "const unsigned int vp9_kf_default_bmode_counts ");
+fprintf(fmode, "[INTRA_MODES][INTRA_MODES]"
+"[INTRA_MODES] =\n{\n");
+for (i = 0; i < INTRA_MODES; i++) {
+fprintf(fmode, "    { // Above Mode :  %d\n", i);
+for (j = 0; j < INTRA_MODES; j++) {
+fprintf(fmode, "        {");
+for (k = 0; k < INTRA_MODES; 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_sb_row / 1000,
+cpi->time_compress_data / 1000,
+(cpi->time_receive_data + cpi->time_compress_data) / 1000);
+}
+#endif
+}
+free_pick_mode_context(&cpi->mb);
+dealloc_compressor_data(cpi);
+vpx_free(cpi->mb.ss);
+vpx_free(cpi->tok);
+for (i = 0; i < sizeof(cpi->mbgraph_stats) /
+sizeof(cpi->mbgraph_stats[0]); ++i) {
+vpx_free(cpi->mbgraph_stats[i].mb_stats);
+}
+vp9_remove_common(&cpi->common);
+vpx_free(cpi);
+*ptr = 0;
+#ifdef OUTPUT_YUV_SRC
+fclose(yuv_file);
+#endif
+#ifdef OUTPUT_YUV_REC
+fclose(yuv_rec_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(uint8_t *orig, int orig_stride,
+uint8_t *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;
+vp9_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;
+uint8_t *border_orig = orig;
+uint8_t *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;
+}
+return total_sse;
+}
+static void generate_psnr_packet(VP9_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 = orig->y_crop_width;
+unsigned int             height = orig->y_crop_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 = orig->uv_crop_width;
+height = orig->uv_crop_height;
+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] = vp9_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 vp9_use_as_reference(VP9_PTR ptr, int ref_frame_flags) {
+VP9_COMP *cpi = (VP9_COMP *)(ptr);
+if (ref_frame_flags > 7)
+return -1;
+cpi->ref_frame_flags = ref_frame_flags;
+return 0;
+}
+int vp9_update_reference(VP9_PTR ptr, int ref_frame_flags) {
+VP9_COMP *cpi = (VP9_COMP *)(ptr);
+if (ref_frame_flags > 7)
+return -1;
+cpi->refresh_golden_frame = 0;
+cpi->refresh_alt_ref_frame = 0;
+cpi->refresh_last_frame   = 0;
+if (ref_frame_flags & VP9_LAST_FLAG)
+cpi->refresh_last_frame = 1;
+if (ref_frame_flags & VP9_GOLD_FLAG)
+cpi->refresh_golden_frame = 1;
+if (ref_frame_flags & VP9_ALT_FLAG)
+cpi->refresh_alt_ref_frame = 1;
+return 0;
+}
+int vp9_copy_reference_enc(VP9_PTR ptr, VP9_REFFRAME ref_frame_flag,
+YV12_BUFFER_CONFIG *sd) {
+VP9_COMP *cpi = (VP9_COMP *)(ptr);
+VP9_COMMON *cm = &cpi->common;
+int ref_fb_idx;
+if (ref_frame_flag == VP9_LAST_FLAG)
+ref_fb_idx = cm->ref_frame_map[cpi->lst_fb_idx];
+else if (ref_frame_flag == VP9_GOLD_FLAG)
+ref_fb_idx = cm->ref_frame_map[cpi->gld_fb_idx];
+else if (ref_frame_flag == VP9_ALT_FLAG)
+ref_fb_idx = cm->ref_frame_map[cpi->alt_fb_idx];
+else
+return -1;
+vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
+return 0;
+}
+int vp9_get_reference_enc(VP9_PTR ptr, int index, YV12_BUFFER_CONFIG **fb) {
+VP9_COMP *cpi = (VP9_COMP *)(ptr);
+VP9_COMMON *cm = &cpi->common;
+if (index < 0 || index >= NUM_REF_FRAMES)
+return -1;
+*fb = &cm->yv12_fb[cm->ref_frame_map[index]];
+return 0;
+}
+int vp9_set_reference_enc(VP9_PTR ptr, VP9_REFFRAME ref_frame_flag,
+YV12_BUFFER_CONFIG *sd) {
+VP9_COMP *cpi = (VP9_COMP *)(ptr);
+VP9_COMMON *cm = &cpi->common;
+int ref_fb_idx;
+if (ref_frame_flag == VP9_LAST_FLAG)
+ref_fb_idx = cm->ref_frame_map[cpi->lst_fb_idx];
+else if (ref_frame_flag == VP9_GOLD_FLAG)
+ref_fb_idx = cm->ref_frame_map[cpi->gld_fb_idx];
+else if (ref_frame_flag == VP9_ALT_FLAG)
+ref_fb_idx = cm->ref_frame_map[cpi->alt_fb_idx];
+else
+return -1;
+vp8_yv12_copy_frame(sd, &cm->yv12_fb[ref_fb_idx]);
+return 0;
+}
+int vp9_update_entropy(VP9_PTR comp, int update) {
+((VP9_COMP *)comp)->common.refresh_frame_context = update;
+return 0;
+}
+#ifdef OUTPUT_YUV_SRC
+void vp9_write_yuv_frame(YV12_BUFFER_CONFIG *s) {
+uint8_t *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);
+}
+#endif
+#ifdef OUTPUT_YUV_REC
+void vp9_write_yuv_rec_frame(VP9_COMMON *cm) {
+YV12_BUFFER_CONFIG *s = cm->frame_to_show;
+uint8_t *src = s->y_buffer;
+int h = cm->height;
+do {
+fwrite(src, s->y_width, 1,  yuv_rec_file);
+src += s->y_stride;
+} while (--h);
+src = s->u_buffer;
+h = s->uv_height;
+do {
+fwrite(src, s->uv_width, 1,  yuv_rec_file);
+src += s->uv_stride;
+} while (--h);
+src = s->v_buffer;
+h = s->uv_height;
+do {
+fwrite(src, s->uv_width, 1, yuv_rec_file);
+src += s->uv_stride;
+} while (--h);
+#if CONFIG_ALPHA
+if (s->alpha_buffer) {
+src = s->alpha_buffer;
+h = s->alpha_height;
+do {
+fwrite(src, s->alpha_width, 1,  yuv_rec_file);
+src += s->alpha_stride;
+} while (--h);
+}
+#endif
+fflush(yuv_rec_file);
+}
+#endif
+static void scale_and_extend_frame(YV12_BUFFER_CONFIG *src_fb,
+YV12_BUFFER_CONFIG *dst_fb) {
+const int in_w = src_fb->y_crop_width;
+const int in_h = src_fb->y_crop_height;
+const int out_w = dst_fb->y_crop_width;
+const int out_h = dst_fb->y_crop_height;
+int x, y, i;
+uint8_t *srcs[4] = {src_fb->y_buffer, src_fb->u_buffer, src_fb->v_buffer,
+src_fb->alpha_buffer};
+int src_strides[4] = {src_fb->y_stride, src_fb->uv_stride, src_fb->uv_stride,
+src_fb->alpha_stride};
+uint8_t *dsts[4] = {dst_fb->y_buffer, dst_fb->u_buffer, dst_fb->v_buffer,
+dst_fb->alpha_buffer};
+int dst_strides[4] = {dst_fb->y_stride, dst_fb->uv_stride, dst_fb->uv_stride,
+dst_fb->alpha_stride};
+for (y = 0; y < out_h; y += 16) {
+for (x = 0; x < out_w; x += 16) {
+for (i = 0; i < MAX_MB_PLANE; ++i) {
+const int factor = i == 0 ? 1 : 2;
+const int x_q4 = x * (16 / factor) * in_w / out_w;
+const int y_q4 = y * (16 / factor) * in_h / out_h;
+const int src_stride = src_strides[i];
+const int dst_stride = dst_strides[i];
+uint8_t *src = srcs[i] + y / factor * in_h / out_h * src_stride +
+x / factor * in_w / out_w;
+uint8_t *dst = dsts[i] + y / factor * dst_stride + x / factor;
+vp9_convolve8(src, src_stride, dst, dst_stride,
+vp9_sub_pel_filters_8[x_q4 & 0xf], 16 * in_w / out_w,
+vp9_sub_pel_filters_8[y_q4 & 0xf], 16 * in_h / out_h,
+16 / factor, 16 / factor);
+}
+}
+}
+vp8_yv12_extend_frame_borders(dst_fb);
+}
+static void update_alt_ref_frame_stats(VP9_COMP *cpi) {
+// this frame refreshes means next frames don't unless specified by user
+cpi->frames_since_golden = 0;
+#if CONFIG_MULTIPLE_ARF
+if (!cpi->multi_arf_enabled)
+#endif
+// 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(VP9_COMP *cpi) {
+// Update the Golden frame usage counts.
+if (cpi->refresh_golden_frame) {
+// this frame refreshes means next frames don't unless specified by user
+cpi->refresh_golden_frame = 0;
+cpi->frames_since_golden = 0;
+// ******** 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->refresh_alt_ref_frame) {
+cpi->source_alt_ref_pending = 1;
+cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+// TODO(ivan): For SVC encoder, GF automatic update is disabled by using
+// a large GF_interval.
+if (cpi->use_svc) {
+cpi->frames_till_gf_update_due = INT_MAX;
+}
+}
+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->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++;
+}
+}
+static int find_fp_qindex() {
+int i;
+for (i = 0; i < QINDEX_RANGE; i++) {
+if (vp9_convert_qindex_to_q(i) >= 30.0) {
+break;
+}
+}
+if (i == QINDEX_RANGE)
+i--;
+return i;
+}
+static void Pass1Encode(VP9_COMP *cpi, unsigned long *size, unsigned char *dest,
+unsigned int *frame_flags) {
+(void) size;
+(void) dest;
+(void) frame_flags;
+vp9_set_quantizer(cpi, find_fp_qindex());
+vp9_first_pass(cpi);
+}
+#define WRITE_RECON_BUFFER 0
+#if WRITE_RECON_BUFFER
+void write_cx_frame_to_file(YV12_BUFFER_CONFIG *frame, int this_frame) {
+FILE *yframe;
+int i;
+char filename[255];
+snprintf(filename, sizeof(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);
+snprintf(filename, sizeof(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);
+snprintf(filename, sizeof(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
+static double compute_edge_pixel_proportion(YV12_BUFFER_CONFIG *frame) {
+#define EDGE_THRESH 128
+int i, j;
+int num_edge_pels = 0;
+int num_pels = (frame->y_height - 2) * (frame->y_width - 2);
+uint8_t *prev = frame->y_buffer + 1;
+uint8_t *curr = frame->y_buffer + 1 + frame->y_stride;
+uint8_t *next = frame->y_buffer + 1 + 2 * frame->y_stride;
+for (i = 1; i < frame->y_height - 1; i++) {
+for (j = 1; j < frame->y_width - 1; j++) {
+/* Sobel hor and ver gradients */
+int v = 2 * (curr[1] - curr[-1]) + (prev[1] - prev[-1]) +
+(next[1] - next[-1]);
+int h = 2 * (prev[0] - next[0]) + (prev[1] - next[1]) +
+(prev[-1] - next[-1]);
+h = (h < 0 ? -h : h);
+v = (v < 0 ? -v : v);
+if (h > EDGE_THRESH || v > EDGE_THRESH)
+num_edge_pels++;
+curr++;
+prev++;
+next++;
+}
+curr += frame->y_stride - frame->y_width + 2;
+prev += frame->y_stride - frame->y_width + 2;
+next += frame->y_stride - frame->y_width + 2;
+}
+return (double)num_edge_pels / num_pels;
+}
+// Function to test for conditions that indicate we should loop
+// back and recode a frame.
+static int recode_loop_test(VP9_COMP *cpi,
+int high_limit, int low_limit,
+int q, int maxq, int minq) {
+int force_recode = 0;
+VP9_COMMON *cm = &cpi->common;
+// Is frame recode allowed at all
+// Yes if either recode mode 1 is selected or mode two is selected
+// 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) ||
+cpi->refresh_golden_frame ||
+cpi->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;
+} else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) {
+// Deal with frame undershoot and whether or not we are
+// below the automatically set cq level.
+if (q > cpi->cq_target_quality &&
+cpi->projected_frame_size < ((cpi->this_frame_target * 7) >> 3)) {
+force_recode = 1;
+} else if (q > cpi->oxcf.cq_level &&
+cpi->projected_frame_size < cpi->min_frame_bandwidth &&
+cpi->active_best_quality > cpi->oxcf.cq_level) {
+// Severe undershoot and between auto and user cq level
+force_recode = 1;
+cpi->active_best_quality = cpi->oxcf.cq_level;
+}
+}
+}
+return force_recode;
+}
+static void update_reference_frames(VP9_COMP * const cpi) {
+VP9_COMMON * const cm = &cpi->common;
+// 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) {
+ref_cnt_fb(cm->fb_idx_ref_cnt,
+&cm->ref_frame_map[cpi->gld_fb_idx], cm->new_fb_idx);
+ref_cnt_fb(cm->fb_idx_ref_cnt,
+&cm->ref_frame_map[cpi->alt_fb_idx], cm->new_fb_idx);
+}
+#if CONFIG_MULTIPLE_ARF
+else if (!cpi->multi_arf_enabled && cpi->refresh_golden_frame &&
+!cpi->refresh_alt_ref_frame) {
+#else
+else if (cpi->refresh_golden_frame && !cpi->refresh_alt_ref_frame &&
+!cpi->use_svc) {
+#endif
+/* Preserve the previously existing golden frame and update the frame in
+* the alt ref slot instead. This is highly specific to the current use of
+* alt-ref as a forward reference, and this needs to be generalized as
+* other uses are implemented (like RTC/temporal scaling)
+*
+* The update to the buffer in the alt ref slot was signaled in
+* vp9_pack_bitstream(), now swap the buffer pointers so that it's treated
+* as the golden frame next time.
+*/
+int tmp;
+ref_cnt_fb(cm->fb_idx_ref_cnt,
+&cm->ref_frame_map[cpi->alt_fb_idx], cm->new_fb_idx);
+tmp = cpi->alt_fb_idx;
+cpi->alt_fb_idx = cpi->gld_fb_idx;
+cpi->gld_fb_idx = tmp;
+}  else { /* For non key/golden frames */
+if (cpi->refresh_alt_ref_frame) {
+int arf_idx = cpi->alt_fb_idx;
+#if CONFIG_MULTIPLE_ARF
+if (cpi->multi_arf_enabled) {
+arf_idx = cpi->arf_buffer_idx[cpi->sequence_number + 1];
+}
+#endif
+ref_cnt_fb(cm->fb_idx_ref_cnt,
+&cm->ref_frame_map[arf_idx], cm->new_fb_idx);
+}
+if (cpi->refresh_golden_frame) {
+ref_cnt_fb(cm->fb_idx_ref_cnt,
+&cm->ref_frame_map[cpi->gld_fb_idx], cm->new_fb_idx);
+}
+}
+if (cpi->refresh_last_frame) {
+ref_cnt_fb(cm->fb_idx_ref_cnt,
+&cm->ref_frame_map[cpi->lst_fb_idx], cm->new_fb_idx);
+}
+}
+static void loopfilter_frame(VP9_COMP *cpi, VP9_COMMON *cm) {
+MACROBLOCKD *xd = &cpi->mb.e_mbd;
+struct loopfilter *lf = &cm->lf;
+if (xd->lossless) {
+lf->filter_level = 0;
+} else {
+struct vpx_usec_timer timer;
+vp9_clear_system_state();
+vpx_usec_timer_start(&timer);
+vp9_pick_filter_level(cpi->Source, cpi, cpi->sf.use_fast_lpf_pick);
+vpx_usec_timer_mark(&timer);
+cpi->time_pick_lpf += vpx_usec_timer_elapsed(&timer);
+}
+if (lf->filter_level > 0) {
+vp9_set_alt_lf_level(cpi, lf->filter_level);
+vp9_loop_filter_frame(cm, xd, lf->filter_level, 0, 0);
+}
+vp9_extend_frame_inner_borders(cm->frame_to_show,
+cm->subsampling_x, cm->subsampling_y);
+}
+static void scale_references(VP9_COMP *cpi) {
+VP9_COMMON *cm = &cpi->common;
+int i;
+int refs[ALLOWED_REFS_PER_FRAME] = {cpi->lst_fb_idx, cpi->gld_fb_idx,
+cpi->alt_fb_idx};
+for (i = 0; i < 3; i++) {
+YV12_BUFFER_CONFIG *ref = &cm->yv12_fb[cm->ref_frame_map[refs[i]]];
+if (ref->y_crop_width != cm->width ||
+ref->y_crop_height != cm->height) {
+int new_fb = get_free_fb(cm);
+vp9_realloc_frame_buffer(&cm->yv12_fb[new_fb],
+cm->width, cm->height,
+cm->subsampling_x, cm->subsampling_y,
+VP9BORDERINPIXELS);
+scale_and_extend_frame(ref, &cm->yv12_fb[new_fb]);
+cpi->scaled_ref_idx[i] = new_fb;
+} else {
+cpi->scaled_ref_idx[i] = cm->ref_frame_map[refs[i]];
+cm->fb_idx_ref_cnt[cm->ref_frame_map[refs[i]]]++;
+}
+}
+}
+static void release_scaled_references(VP9_COMP *cpi) {
+VP9_COMMON *cm = &cpi->common;
+int i;
+for (i = 0; i < 3; i++)
+cm->fb_idx_ref_cnt[cpi->scaled_ref_idx[i]]--;
+}
+static void full_to_model_count(unsigned int *model_count,
+unsigned int *full_count) {
+int n;
+model_count[ZERO_TOKEN] = full_count[ZERO_TOKEN];
+model_count[ONE_TOKEN] = full_count[ONE_TOKEN];
+model_count[TWO_TOKEN] = full_count[TWO_TOKEN];
+for (n = THREE_TOKEN; n < DCT_EOB_TOKEN; ++n)
+model_count[TWO_TOKEN] += full_count[n];
+model_count[DCT_EOB_MODEL_TOKEN] = full_count[DCT_EOB_TOKEN];
+}
+static void full_to_model_counts(
+vp9_coeff_count_model *model_count, vp9_coeff_count *full_count) {
+int i, j, k, l;
+for (i = 0; i < BLOCK_TYPES; ++i)
+for (j = 0; j < REF_TYPES; ++j)
+for (k = 0; k < COEF_BANDS; ++k)
+for (l = 0; l < PREV_COEF_CONTEXTS; ++l) {
+if (l >= 3 && k == 0)
+continue;
+full_to_model_count(model_count[i][j][k][l], full_count[i][j][k][l]);
+}
+}
+#if 0 && CONFIG_INTERNAL_STATS
+static void output_frame_level_debug_stats(VP9_COMP *cpi) {
+VP9_COMMON *const cm = &cpi->common;
+FILE *const f = fopen("tmp.stt", cm->current_video_frame ? "a" : "w");
+int recon_err;
+vp9_clear_system_state();  // __asm emms;
+recon_err = vp9_calc_ss_err(cpi->Source, get_frame_new_buffer(cm));
+if (cpi->twopass.total_left_stats.coded_error != 0.0)
+fprintf(f, "%10d %10d %10d %10d %10d %10d %10d %10d %10d"
+"%7.2f %7.2f %7.2f %7.2f %7.2f %7.2f %7.2f"
+"%6d %6d %5d %5d %5d %8.2f %10d %10.3f"
+"%10.3f %8d %10d %10d %10d\n",
+cpi->common.current_video_frame, cpi->this_frame_target,
+cpi->projected_frame_size, 0,
+(cpi->projected_frame_size - cpi->this_frame_target),
+(int)cpi->total_target_vs_actual,
+(int)(cpi->oxcf.starting_buffer_level - cpi->bits_off_target),
+(int)cpi->total_actual_bits, cm->base_qindex,
+vp9_convert_qindex_to_q(cm->base_qindex),
+(double)vp9_dc_quant(cm->base_qindex, 0) / 4.0,
+vp9_convert_qindex_to_q(cpi->active_best_quality),
+vp9_convert_qindex_to_q(cpi->active_worst_quality), cpi->avg_q,
+vp9_convert_qindex_to_q(cpi->ni_av_qi),
+vp9_convert_qindex_to_q(cpi->cq_target_quality),
+cpi->refresh_last_frame, cpi->refresh_golden_frame,
+cpi->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 /
+(1 + cpi->twopass.total_left_stats.coded_error),
+cpi->tot_recode_hits, recon_err, cpi->kf_boost, cpi->kf_zeromotion_pct);
+fclose(f);
+if (0) {
+FILE *const fmodes = fopen("Modes.stt", "a");
+int i;
+fprintf(fmodes, "%6d:%1d:%1d:%1d ", cpi->common.current_video_frame,
+cm->frame_type, cpi->refresh_golden_frame,
+cpi->refresh_alt_ref_frame);
+for (i = 0; i < MAX_MODES; ++i)
+fprintf(fmodes, "%5d ", cpi->mode_chosen_counts[i]);
+for (i = 0; i < MAX_REFS; ++i)
+fprintf(fmodes, "%5d ", cpi->sub8x8_mode_chosen_counts[i]);
+fprintf(fmodes, "\n");
+fclose(fmodes);
+}
+}
+#endif
+static int pick_q_and_adjust_q_bounds(VP9_COMP *cpi,
+int * bottom_index, int * top_index) {
+// Set an active best quality and if necessary active worst quality
+int q = cpi->active_worst_quality;
+VP9_COMMON *const cm = &cpi->common;
+if (frame_is_intra_only(cm)) {
+#if !CONFIG_MULTIPLE_ARF
+// Handle the special case for key frames forced when we have75 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) {
+int delta_qindex;
+int qindex = cpi->last_boosted_qindex;
+double last_boosted_q = vp9_convert_qindex_to_q(qindex);
+delta_qindex = vp9_compute_qdelta(cpi, last_boosted_q,
+(last_boosted_q * 0.75));
+cpi->active_best_quality = MAX(qindex + delta_qindex,
+cpi->best_quality);
+} else {
+int high = 5000;
+int low = 400;
+double q_adj_factor = 1.0;
+double q_val;
+// Baseline value derived from cpi->active_worst_quality and kf boost
+cpi->active_best_quality = get_active_quality(q, cpi->kf_boost,
+low, high,
+kf_low_motion_minq,
+kf_high_motion_minq);
+// Allow somewhat lower kf minq with small image formats.
+if ((cm->width * cm->height) <= (352 * 288)) {
+q_adj_factor -= 0.25;
+}
+// Make a further adjustment based on the kf zero motion measure.
+q_adj_factor += 0.05 - (0.001 * (double)cpi->kf_zeromotion_pct);
+// Convert the adjustment factor to a qindex delta
+// on active_best_quality.
+q_val = vp9_convert_qindex_to_q(cpi->active_best_quality);
+cpi->active_best_quality +=
+vp9_compute_qdelta(cpi, q_val, (q_val * q_adj_factor));
+}
+#else
+double current_q;
+// Force the KF quantizer to be 30% of the active_worst_quality.
+current_q = vp9_convert_qindex_to_q(cpi->active_worst_quality);
+cpi->active_best_quality = cpi->active_worst_quality
++ vp9_compute_qdelta(cpi, current_q, current_q * 0.3);
+#endif
+} else if (!cpi->is_src_frame_alt_ref &&
+(cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame)) {
+int high = 2000;
+int low = 400;
+// Use the lower of cpi->active_worst_quality and recent
+// average Q as basis for GF/ARF best 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) {
+if (q < cpi->cq_target_quality)
+q = cpi->cq_target_quality;
+if (cpi->frames_since_key > 1) {
+cpi->active_best_quality = get_active_quality(q, cpi->gfu_boost,
+low, high,
+afq_low_motion_minq,
+afq_high_motion_minq);
+} else {
+cpi->active_best_quality = get_active_quality(q, cpi->gfu_boost,
+low, high,
+gf_low_motion_minq,
+gf_high_motion_minq);
+}
+// Constrained quality use slightly lower active best.
+cpi->active_best_quality = cpi->active_best_quality * 15 / 16;
+} else if (cpi->oxcf.end_usage == USAGE_CONSTANT_QUALITY) {
+if (!cpi->refresh_alt_ref_frame) {
+cpi->active_best_quality = cpi->cq_target_quality;
+} else {
+if (cpi->frames_since_key > 1) {
+cpi->active_best_quality = get_active_quality(q, cpi->gfu_boost,
+low, high,
+afq_low_motion_minq,
+afq_high_motion_minq);
+} else {
+cpi->active_best_quality = get_active_quality(q, cpi->gfu_boost,
+low, high,
+gf_low_motion_minq,
+gf_high_motion_minq);
+}
+}
+} else {
+cpi->active_best_quality = get_active_quality(q, cpi->gfu_boost,
+low, high,
+gf_low_motion_minq,
+gf_high_motion_minq);
+}
+} else {
+if (cpi->oxcf.end_usage == USAGE_CONSTANT_QUALITY) {
+cpi->active_best_quality = cpi->cq_target_quality;
+} else {
+cpi->active_best_quality = inter_minq[q];
+// 1-pass: for now, use the average Q for the active_best, if its lower
+// than active_worst.
+if (cpi->pass == 0 && (cpi->avg_frame_qindex < q))
+cpi->active_best_quality = inter_minq[cpi->avg_frame_qindex];
+// For the constrained quality mode we don't 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;
+}
+}
+}
+// 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_best_quality > cpi->worst_quality)
+cpi->active_best_quality = cpi->worst_quality;
+if (cpi->active_worst_quality < cpi->active_best_quality)
+cpi->active_worst_quality = cpi->active_best_quality;
+// Limit Q range for the adaptive loop.
+if (cm->frame_type == KEY_FRAME && !cpi->this_key_frame_forced) {
+*top_index =
+(cpi->active_worst_quality + cpi->active_best_quality * 3) / 4;
+// If this is the first (key) frame in 1-pass, active best is the user
+// best-allowed, and leave the top_index to active_worst.
+if (cpi->pass == 0 && cpi->common.current_video_frame == 0) {
+cpi->active_best_quality = cpi->oxcf.best_allowed_q;
+*top_index = cpi->oxcf.worst_allowed_q;
+}
+} else if (!cpi->is_src_frame_alt_ref &&
+(cpi->oxcf.end_usage != USAGE_STREAM_FROM_SERVER) &&
+(cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame)) {
+*top_index =
+(cpi->active_worst_quality + cpi->active_best_quality) / 2;
+} else {
+*top_index = cpi->active_worst_quality;
+}
+*bottom_index = cpi->active_best_quality;
+if (cpi->oxcf.end_usage == USAGE_CONSTANT_QUALITY) {
+q = cpi->active_best_quality;
+// Special case code to try and match quality with forced key frames
+} else if ((cm->frame_type == KEY_FRAME) && cpi->this_key_frame_forced) {
+q = cpi->last_boosted_qindex;
+} else {
+// Determine initial Q to try.
+if (cpi->pass == 0) {
+// 1-pass: for now, use per-frame-bw for target size of frame, scaled
+// by |x| for key frame.
+int scale = (cm->frame_type == KEY_FRAME) ? 5 : 1;
+q = vp9_regulate_q(cpi, scale * cpi->av_per_frame_bandwidth);
+} else {
+q = vp9_regulate_q(cpi, cpi->this_frame_target);
+}
+if (q > *top_index)
+q = *top_index;
+}
+return q;
+}
+static void encode_frame_to_data_rate(VP9_COMP *cpi,
+unsigned long *size,
+unsigned char *dest,
+unsigned int *frame_flags) {
+VP9_COMMON *const cm = &cpi->common;
+TX_SIZE t;
+int q;
+int frame_over_shoot_limit;
+int frame_under_shoot_limit;
+int loop = 0;
+int loop_count;
+int q_low;
+int q_high;
+int top_index;
+int bottom_index;
+int active_worst_qchanged = 0;
+int overshoot_seen = 0;
+int undershoot_seen = 0;
+SPEED_FEATURES *const sf = &cpi->sf;
+unsigned int max_mv_def = MIN(cpi->common.width, cpi->common.height);
+struct segmentation *const seg = &cm->seg;
+/* Scale the source buffer, if required. */
+if (cm->mi_cols * 8 != cpi->un_scaled_source->y_width ||
+cm->mi_rows * 8 != cpi->un_scaled_source->y_height) {
+scale_and_extend_frame(cpi->un_scaled_source, &cpi->scaled_source);
+cpi->Source = &cpi->scaled_source;
+} else {
+cpi->Source = cpi->un_scaled_source;
+}
+scale_references(cpi);
+// Clear down mmx registers to allow floating point in what follows.
+vp9_clear_system_state();
+// For an alt ref frame in 2 pass we skip the call to the second
+// pass function that sets the target bandwidth so we must set it here.
+if (cpi->refresh_alt_ref_frame) {
+// Set a per frame bit target for the alt ref frame.
+cpi->per_frame_bandwidth = cpi->twopass.gf_bits;
+// Set a per second target bitrate.
+cpi->target_bandwidth = (int)(cpi->twopass.gf_bits * cpi->output_framerate);
+}
+// Clear zbin over-quant value and mode boost values.
+cpi->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->zbin_mode_boost = 0;
+cpi->zbin_mode_boost_enabled = 0;
+// Current default encoder behavior for the altref sign bias.
+cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = cpi->source_alt_ref_active;
+// 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))) {
+// Set frame type to key frame for the force key frame, if we exceed the
+// maximum distance in an automatic keyframe selection or for the first
+// frame.
+cm->frame_type = KEY_FRAME;
+}
+// Set default state for segment based loop filter update flags.
+cm->lf.mode_ref_delta_update = 0;
+// Initialize cpi->mv_step_param to default based on max resolution.
+cpi->mv_step_param = vp9_init_search_range(cpi, max_mv_def);
+// Initialize cpi->max_mv_magnitude and cpi->mv_step_param if appropriate.
+if (sf->auto_mv_step_size) {
+if (frame_is_intra_only(&cpi->common)) {
+// Initialize max_mv_magnitude for use in the first INTER frame
+// after a key/intra-only frame.
+cpi->max_mv_magnitude = max_mv_def;
+} else {
+if (cm->show_frame)
+// Allow mv_steps to correspond to twice the max mv magnitude found
+// in the previous frame, capped by the default max_mv_magnitude based
+// on resolution.
+cpi->mv_step_param = vp9_init_search_range(
+cpi, MIN(max_mv_def, 2 * cpi->max_mv_magnitude));
+cpi->max_mv_magnitude = 0;
+}
+}
+// Set various flags etc to special state if it is a key frame.
+if (frame_is_intra_only(cm)) {
+vp9_setup_key_frame(cpi);
+// Reset the loop filter deltas and segmentation map.
+setup_features(cm);
+// If segmentation is enabled force a map update for key frames.
+if (seg->enabled) {
+seg->update_map = 1;
+seg->update_data = 1;
+}
+// The alternate reference frame cannot be active for a key frame.
+cpi->source_alt_ref_active = 0;
+cm->error_resilient_mode = (cpi->oxcf.error_resilient_mode != 0);
+cm->frame_parallel_decoding_mode =
+(cpi->oxcf.frame_parallel_decoding_mode != 0);
+if (cm->error_resilient_mode) {
+cm->frame_parallel_decoding_mode = 1;
+cm->reset_frame_context = 0;
+cm->refresh_frame_context = 0;
+} else if (cm->intra_only) {
+// Only reset the current context.
+cm->reset_frame_context = 2;
+}
+}
+// Configure experimental use of segmentation for enhanced coding of
+// static regions if indicated.
+// Only allowed in second pass of two pass (as requires lagged coding)
+// and if the relevant speed feature flag is set.
+if ((cpi->pass == 2) && (cpi->sf.static_segmentation)) {
+configure_static_seg_features(cpi);
+}
+// Decide how big to make the frame.
+vp9_pick_frame_size(cpi);
+vp9_clear_system_state();
+q = pick_q_and_adjust_q_bounds(cpi, &bottom_index, &top_index);
+q_high = top_index;
+q_low  = bottom_index;
+vp9_compute_frame_size_bounds(cpi, &frame_under_shoot_limit,
+&frame_over_shoot_limit);
+#if CONFIG_MULTIPLE_ARF
+// Force the quantizer determined by the coding order pattern.
+if (cpi->multi_arf_enabled && (cm->frame_type != KEY_FRAME) &&
+cpi->oxcf.end_usage != USAGE_CONSTANT_QUALITY) {
+double new_q;
+double current_q = vp9_convert_qindex_to_q(cpi->active_worst_quality);
+int level = cpi->this_frame_weight;
+assert(level >= 0);
+// Set quantizer steps at 10% increments.
+new_q = current_q * (1.0 - (0.2 * (cpi->max_arf_level - level)));
+q = cpi->active_worst_quality + vp9_compute_qdelta(cpi, current_q, new_q);
+bottom_index = q;
+top_index    = q;
+q_low  = q;
+q_high = q;
+printf("frame:%d q:%d\n", cm->current_video_frame, q);
+}
+#endif
+loop_count = 0;
+vp9_zero(cpi->rd_tx_select_threshes);
+if (!frame_is_intra_only(cm)) {
+cm->mcomp_filter_type = DEFAULT_INTERP_FILTER;
+/* TODO: Decide this more intelligently */
+cm->allow_high_precision_mv = q < HIGH_PRECISION_MV_QTHRESH;
+set_mvcost(cpi);
+}
+#if CONFIG_VP9_POSTPROC
+if (cpi->oxcf.noise_sensitivity > 0) {
+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:
+case 5:
+l = 100;
+break;
+case 6:
+l = 150;
+break;
+}
+vp9_denoise(cpi->Source, cpi->Source, l);
+}
+#endif
+#ifdef OUTPUT_YUV_SRC
+vp9_write_yuv_frame(cpi->Source);
+#endif
+do {
+vp9_clear_system_state();  // __asm emms;
+vp9_set_quantizer(cpi, q);
+if (loop_count == 0) {
+// Set up entropy context depending on frame type. The decoder mandates
+// the use of the default context, index 0, for keyframes and inter
+// frames where the error_resilient_mode or intra_only flag is set. For
+// other inter-frames the encoder currently uses only two contexts;
+// context 1 for ALTREF frames and context 0 for the others.
+if (cm->frame_type == KEY_FRAME) {
+vp9_setup_key_frame(cpi);
+} else {
+if (!cm->intra_only && !cm->error_resilient_mode) {
+cpi->common.frame_context_idx = cpi->refresh_alt_ref_frame;
+}
+vp9_setup_inter_frame(cpi);
+}
+}
+if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
+vp9_vaq_frame_setup(cpi);
+}
+// transform / motion compensation build reconstruction frame
+vp9_encode_frame(cpi);
+// Update the skip mb flag probabilities based on the distribution
+// seen in the last encoder iteration.
+// update_base_skip_probs(cpi);
+vp9_clear_system_state();  // __asm emms;
+// Dummy pack of the bitstream using up to date stats to get an
+// accurate estimate of output frame size to determine if we need
+// to recode.
+vp9_save_coding_context(cpi);
+cpi->dummy_packing = 1;
+vp9_pack_bitstream(cpi, dest, size);
+cpi->projected_frame_size = (*size) << 3;
+vp9_restore_coding_context(cpi);
+if (frame_over_shoot_limit == 0)
+frame_over_shoot_limit = 1;
+active_worst_qchanged = 0;
+if (cpi->oxcf.end_usage == USAGE_CONSTANT_QUALITY) {
+loop = 0;
+} else {
+// 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 = vp9_calc_ss_err(cpi->Source, get_frame_new_buffer(cm));
+int high_err_target = cpi->ambient_err;
+int low_err_target = cpi->ambient_err >> 1;
+// Prevent possible divide by zero error below for perfect KF
+kf_err += !kf_err;
+// The key frame is not good enough or we can afford
+// to make it better without undue risk of popping.
+if ((kf_err > high_err_target &&
+cpi->projected_frame_size <= frame_over_shoot_limit) ||
+(kf_err > low_err_target &&
+cpi->projected_frame_size <= frame_under_shoot_limit)) {
+// Lower q_high
+q_high = q > q_low ? q - 1 : q_low;
+// Adjust Q
+q = (q * high_err_target) / kf_err;
+q = MIN(q, (q_high + q_low) >> 1);
+} else if (kf_err < low_err_target &&
+cpi->projected_frame_size >= frame_under_shoot_limit) {
+// The key frame is much better than the previous frame
+// Raise q_low
+q_low = q < q_high ? q + 1 : q_high;
+// Adjust Q
+q = (q * low_err_target) / kf_err;
+q = MIN(q, (q_high + q_low + 1) >> 1);
+}
+// Clamp Q to upper and lower limits:
+q = clamp(q, q_low, q_high);
+loop = q != last_q;
+} else if (recode_loop_test(
+cpi, frame_over_shoot_limit, frame_under_shoot_limit,
+q, top_index, bottom_index)) {
+// Is the projected frame size out of range and are we allowed
+// to attempt to recode.
+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 (undershoot_seen || loop_count > 1) {
+// Update rate_correction_factor unless
+// cpi->active_worst_quality has changed.
+if (!active_worst_qchanged)
+vp9_update_rate_correction_factors(cpi, 1);
+q = (q_high + q_low + 1) / 2;
+} else {
+// Update rate_correction_factor unless
+// cpi->active_worst_quality has changed.
+if (!active_worst_qchanged)
+vp9_update_rate_correction_factors(cpi, 0);
+q = vp9_regulate_q(cpi, cpi->this_frame_target);
+while (q < q_low && retries < 10) {
+vp9_update_rate_correction_factors(cpi, 0);
+q = vp9_regulate_q(cpi, cpi->this_frame_target);
+retries++;
+}
+}
+overshoot_seen = 1;
+} else {
+// Frame is too small
+q_high = q > q_low ? q - 1 : q_low;
+if (overshoot_seen || loop_count > 1) {
+// Update rate_correction_factor unless
+// cpi->active_worst_quality has changed.
+if (!active_worst_qchanged)
+vp9_update_rate_correction_factors(cpi, 1);
+q = (q_high + q_low) / 2;
+} else {
+// Update rate_correction_factor unless
+// cpi->active_worst_quality has changed.
+if (!active_worst_qchanged)
+vp9_update_rate_correction_factors(cpi, 0);
+q = vp9_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 && retries < 10) {
+vp9_update_rate_correction_factors(cpi, 0);
+q = vp9_regulate_q(cpi, cpi->this_frame_target);
+retries++;
+}
+}
+undershoot_seen = 1;
+}
+// Clamp Q to upper and lower limits:
+q = clamp(q, q_low, q_high);
+loop = q != last_q;
+} else {
+loop = 0;
+}
+}
+if (cpi->is_src_frame_alt_ref)
+loop = 0;
+if (loop) {
+loop_count++;
+#if CONFIG_INTERNAL_STATS
+cpi->tot_recode_hits++;
+#endif
+}
+} while (loop);
+// 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 = vp9_calc_ss_err(cpi->Source, get_frame_new_buffer(cm));
+}
+if (cm->frame_type == KEY_FRAME)
+cpi->refresh_last_frame = 1;
+cm->frame_to_show = get_frame_new_buffer(cm);
+#if WRITE_RECON_BUFFER
+if (cm->show_frame)
+write_cx_frame_to_file(cm->frame_to_show,
+cm->current_video_frame);
+else
+write_cx_frame_to_file(cm->frame_to_show,
+cm->current_video_frame + 1000);
+#endif
+// Pick the loop filter level for the frame.
+loopfilter_frame(cpi, cm);
+#if WRITE_RECON_BUFFER
+if (cm->show_frame)
+write_cx_frame_to_file(cm->frame_to_show,
+cm->current_video_frame + 2000);
+else
+write_cx_frame_to_file(cm->frame_to_show,
+cm->current_video_frame + 3000);
+#endif
+// build the bitstream
+cpi->dummy_packing = 0;
+vp9_pack_bitstream(cpi, dest, size);
+if (cm->seg.update_map)
+update_reference_segmentation_map(cpi);
+release_scaled_references(cpi);
+update_reference_frames(cpi);
+for (t = TX_4X4; t <= TX_32X32; t++)
+full_to_model_counts(cpi->common.counts.coef[t],
+cpi->coef_counts[t]);
+if (!cpi->common.error_resilient_mode &&
+!cpi->common.frame_parallel_decoding_mode) {
+vp9_adapt_coef_probs(&cpi->common);
+}
+if (!frame_is_intra_only(&cpi->common)) {
+FRAME_COUNTS *counts = &cpi->common.counts;
+vp9_copy(counts->y_mode, cpi->y_mode_count);
+vp9_copy(counts->uv_mode, cpi->y_uv_mode_count);
+vp9_copy(counts->partition, cpi->partition_count);
+vp9_copy(counts->intra_inter, cpi->intra_inter_count);
+vp9_copy(counts->comp_inter, cpi->comp_inter_count);
+vp9_copy(counts->single_ref, cpi->single_ref_count);
+vp9_copy(counts->comp_ref, cpi->comp_ref_count);
+counts->mv = cpi->NMVcount;
+if (!cpi->common.error_resilient_mode &&
+!cpi->common.frame_parallel_decoding_mode) {
+vp9_adapt_mode_probs(&cpi->common);
+vp9_adapt_mv_probs(&cpi->common, cpi->common.allow_high_precision_mv);
+}
+}
+#ifdef ENTROPY_STATS
+vp9_update_mode_context_stats(cpi);
+#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;
+// Post encode loop adjustment of Q prediction.
+if (!active_worst_qchanged)
+vp9_update_rate_correction_factors(cpi, (cpi->sf.recode_loop ||
+cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) ? 2 : 0);
+cpi->last_q[cm->frame_type] = cm->base_qindex;
+// Keep record of last boosted (KF/KF/ARF) Q value.
+// If the current frame is coded at a lower Q then we also update it.
+// If all mbs in this group are skipped only update if the Q value is
+// better than that already stored.
+// This is used to help set quality in forced key frames to reduce popping
+if ((cm->base_qindex < cpi->last_boosted_qindex) ||
+((cpi->static_mb_pct < 100) &&
+((cm->frame_type == KEY_FRAME) ||
+cpi->refresh_alt_ref_frame ||
+(cpi->refresh_golden_frame && !cpi->is_src_frame_alt_ref)))) {
+cpi->last_boosted_qindex = cm->base_qindex;
+}
+if (cm->frame_type == KEY_FRAME) {
+vp9_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->refresh_golden_frame &&
+!cpi->refresh_alt_ref_frame) {
+cpi->ni_frames++;
+cpi->tot_q += vp9_convert_qindex_to_q(q);
+cpi->avg_q = cpi->tot_q / (double)cpi->ni_frames;
+// Calculate the average Q for normal inter frames (not key or GFU frames).
+cpi->ni_tot_qi += q;
+cpi->ni_av_qi = cpi->ni_tot_qi / cpi->ni_frames;
+}
+// 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 at the maximum 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.
+if (cm->frame_type != KEY_FRAME) {
+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;
+#ifndef DISABLE_RC_LONG_TERM_MEM
+// 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;
+cpi->twopass.kf_group_bits = MAX(cpi->twopass.kf_group_bits, 0);
+} else if (cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame) {
+cpi->twopass.gf_group_bits += cpi->this_frame_target -
+cpi->projected_frame_size;
+cpi->twopass.gf_group_bits = MAX(cpi->twopass.gf_group_bits, 0);
+}
+#endif
+#if 0
+output_frame_level_debug_stats(cpi);
+#endif
+if (cpi->refresh_golden_frame == 1)
+cm->frame_flags = cm->frame_flags | FRAMEFLAGS_GOLDEN;
+else
+cm->frame_flags = cm->frame_flags&~FRAMEFLAGS_GOLDEN;
+if (cpi->refresh_alt_ref_frame == 1)
+cm->frame_flags = cm->frame_flags | FRAMEFLAGS_ALTREF;
+else
+cm->frame_flags = cm->frame_flags&~FRAMEFLAGS_ALTREF;
+if (cpi->refresh_last_frame & cpi->refresh_golden_frame)
+cpi->gold_is_last = 1;
+else if (cpi->refresh_last_frame ^ cpi->refresh_golden_frame)
+cpi->gold_is_last = 0;
+if (cpi->refresh_last_frame & cpi->refresh_alt_ref_frame)
+cpi->alt_is_last = 1;
+else if (cpi->refresh_last_frame ^ cpi->refresh_alt_ref_frame)
+cpi->alt_is_last = 0;
+if (cpi->refresh_alt_ref_frame & cpi->refresh_golden_frame)
+cpi->gold_is_alt = 1;
+else if (cpi->refresh_alt_ref_frame ^ cpi->refresh_golden_frame)
+cpi->gold_is_alt = 0;
+cpi->ref_frame_flags = VP9_ALT_FLAG | VP9_GOLD_FLAG | VP9_LAST_FLAG;
+if (cpi->gold_is_last)
+cpi->ref_frame_flags &= ~VP9_GOLD_FLAG;
+if (cpi->alt_is_last)
+cpi->ref_frame_flags &= ~VP9_ALT_FLAG;
+if (cpi->gold_is_alt)
+cpi->ref_frame_flags &= ~VP9_ALT_FLAG;
+if (cpi->oxcf.play_alternate && cpi->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;
+#if CONFIG_MULTIPLE_ARF
+// Reset the sequence number.
+if (cpi->multi_arf_enabled) {
+cpi->sequence_number = 0;
+cpi->frame_coding_order_period = cpi->new_frame_coding_order_period;
+cpi->new_frame_coding_order_period = -1;
+}
+#endif
+// As this frame is a key frame the next defaults to an inter frame.
+cm->frame_type = INTER_FRAME;
+} else {
+*frame_flags = cm->frame_flags&~FRAMEFLAGS_KEY;
+#if CONFIG_MULTIPLE_ARF
+/* Increment position in the coded frame sequence. */
+if (cpi->multi_arf_enabled) {
+++cpi->sequence_number;
+if (cpi->sequence_number >= cpi->frame_coding_order_period) {
+cpi->sequence_number = 0;
+cpi->frame_coding_order_period = cpi->new_frame_coding_order_period;
+cpi->new_frame_coding_order_period = -1;
+}
+cpi->this_frame_weight = cpi->arf_weight[cpi->sequence_number];
+assert(cpi->this_frame_weight >= 0);
+}
+#endif
+}
+// Clear the one shot update flags for segmentation map and mode/ref loop
+// filter deltas.
+cm->seg.update_map = 0;
+cm->seg.update_data = 0;
+cm->lf.mode_ref_delta_update = 0;
+// keep track of the last coded dimensions
+cm->last_width = cm->width;
+cm->last_height = cm->height;
+// reset to normal state now that we are done.
+cm->last_show_frame = cm->show_frame;
+if (cm->show_frame) {
+// current mip will be the prev_mip for the next frame
+MODE_INFO *temp = cm->prev_mip;
+MODE_INFO **temp2 = cm->prev_mi_grid_base;
+cm->prev_mip = cm->mip;
+cm->mip = temp;
+cm->prev_mi_grid_base = cm->mi_grid_base;
+cm->mi_grid_base = temp2;
+// update the upper left visible macroblock ptrs
+cm->mi = cm->mip + cm->mode_info_stride + 1;
+cm->mi_grid_visible = cm->mi_grid_base + cm->mode_info_stride + 1;
+cpi->mb.e_mbd.mi_8x8 = cm->mi_grid_visible;
+cpi->mb.e_mbd.mi_8x8[0] = cm->mi;
+// Don't increment frame counters if this was an altref buffer
+// update not a real frame
+++cm->current_video_frame;
+++cpi->frames_since_key;
+}
+// restore prev_mi
+cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1;
+cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mode_info_stride + 1;
+}
+static void Pass2Encode(VP9_COMP *cpi, unsigned long *size,
+unsigned char *dest, unsigned int *frame_flags) {
+cpi->enable_encode_breakout = 1;
+if (!cpi->refresh_alt_ref_frame)
+vp9_second_pass(cpi);
+encode_frame_to_data_rate(cpi, size, dest, frame_flags);
+// vp9_print_modes_and_motion_vectors(&cpi->common, "encode.stt");
+#ifdef DISABLE_RC_LONG_TERM_MEM
+cpi->twopass.bits_left -=  cpi->this_frame_target;
+#else
+cpi->twopass.bits_left -= 8 * *size;
+#endif
+if (!cpi->refresh_alt_ref_frame) {
+double lower_bounds_min_rate = FRAME_OVERHEAD_BITS * cpi->oxcf.framerate;
+double two_pass_min_rate = (double)(cpi->oxcf.target_bandwidth
+* cpi->oxcf.two_pass_vbrmin_section
+/ 100);
+if (two_pass_min_rate < lower_bounds_min_rate)
+two_pass_min_rate = lower_bounds_min_rate;
+cpi->twopass.bits_left += (int64_t)(two_pass_min_rate
+/ cpi->oxcf.framerate);
+}
+}
+static void check_initial_width(VP9_COMP *cpi, YV12_BUFFER_CONFIG *sd) {
+VP9_COMMON            *cm = &cpi->common;
+if (!cpi->initial_width) {
+// TODO(jkoleszar): Support 1/4 subsampling?
+cm->subsampling_x = (sd != NULL) && sd->uv_width < sd->y_width;
+cm->subsampling_y = (sd != NULL) && sd->uv_height < sd->y_height;
+alloc_raw_frame_buffers(cpi);
+cpi->initial_width = cm->width;
+cpi->initial_height = cm->height;
+}
+}
+int vp9_receive_raw_frame(VP9_PTR ptr, unsigned int frame_flags,
+YV12_BUFFER_CONFIG *sd, int64_t time_stamp,
+int64_t end_time) {
+VP9_COMP              *cpi = (VP9_COMP *) ptr;
+struct vpx_usec_timer  timer;
+int                    res = 0;
+check_initial_width(cpi, sd);
+vpx_usec_timer_start(&timer);
+if (vp9_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);
+return res;
+}
+static int frame_is_reference(const VP9_COMP *cpi) {
+const VP9_COMMON *cm = &cpi->common;
+return cm->frame_type == KEY_FRAME ||
+cpi->refresh_last_frame ||
+cpi->refresh_golden_frame ||
+cpi->refresh_alt_ref_frame ||
+cm->refresh_frame_context ||
+cm->lf.mode_ref_delta_update ||
+cm->seg.update_map ||
+cm->seg.update_data;
+}
+#if CONFIG_MULTIPLE_ARF
+int is_next_frame_arf(VP9_COMP *cpi) {
+// Negative entry in frame_coding_order indicates an ARF at this position.
+return cpi->frame_coding_order[cpi->sequence_number + 1] < 0 ? 1 : 0;
+}
+#endif
+int vp9_get_compressed_data(VP9_PTR ptr, unsigned int *frame_flags,
+unsigned long *size, unsigned char *dest,
+int64_t *time_stamp, int64_t *time_end, int flush) {
+VP9_COMP *cpi = (VP9_COMP *) ptr;
+VP9_COMMON *cm = &cpi->common;
+struct vpx_usec_timer  cmptimer;
+YV12_BUFFER_CONFIG    *force_src_buffer = NULL;
+int i;
+// FILE *fp_out = fopen("enc_frame_type.txt", "a");
+if (!cpi)
+return -1;
+vpx_usec_timer_start(&cmptimer);
+cpi->source = NULL;
+cpi->common.allow_high_precision_mv = ALTREF_HIGH_PRECISION_MV;
+set_mvcost(cpi);
+// Should we code an alternate reference frame.
+if (cpi->oxcf.play_alternate && cpi->source_alt_ref_pending) {
+int frames_to_arf;
+#if CONFIG_MULTIPLE_ARF
+assert(!cpi->multi_arf_enabled ||
+cpi->frame_coding_order[cpi->sequence_number] < 0);
+if (cpi->multi_arf_enabled && (cpi->pass == 2))
+frames_to_arf = (-cpi->frame_coding_order[cpi->sequence_number])
+- cpi->next_frame_in_order;
+else
+#endif
+frames_to_arf = cpi->frames_till_gf_update_due;
+assert(frames_to_arf < cpi->twopass.frames_to_key);
+if ((cpi->source = vp9_lookahead_peek(cpi->lookahead, frames_to_arf))) {
+#if CONFIG_MULTIPLE_ARF
+cpi->alt_ref_source[cpi->arf_buffered] = cpi->source;
+#else
+cpi->alt_ref_source = cpi->source;
+#endif
+if (cpi->oxcf.arnr_max_frames > 0) {
+// Produce the filtered ARF frame.
+// TODO(agrange) merge these two functions.
+configure_arnr_filter(cpi, cm->current_video_frame + frames_to_arf,
+cpi->gfu_boost);
+vp9_temporal_filter_prepare(cpi, frames_to_arf);
+vp9_extend_frame_borders(&cpi->alt_ref_buffer,
+cm->subsampling_x, cm->subsampling_y);
+force_src_buffer = &cpi->alt_ref_buffer;
+}
+cm->show_frame = 0;
+cpi->refresh_alt_ref_frame = 1;
+cpi->refresh_golden_frame = 0;
+cpi->refresh_last_frame = 0;
+cpi->is_src_frame_alt_ref = 0;
+// TODO(agrange) This needs to vary depending on where the next ARF is.
+cpi->frames_till_alt_ref_frame = frames_to_arf;
+#if CONFIG_MULTIPLE_ARF
+if (!cpi->multi_arf_enabled)
+#endif
+cpi->source_alt_ref_pending = 0;   // Clear Pending altf Ref flag.
+}
+}
+if (!cpi->source) {
+#if CONFIG_MULTIPLE_ARF
+int i;
+#endif
+if ((cpi->source = vp9_lookahead_pop(cpi->lookahead, flush))) {
+cm->show_frame = 1;
+cm->intra_only = 0;
+#if CONFIG_MULTIPLE_ARF
+// Is this frame the ARF overlay.
+cpi->is_src_frame_alt_ref = 0;
+for (i = 0; i < cpi->arf_buffered; ++i) {
+if (cpi->source == cpi->alt_ref_source[i]) {
+cpi->is_src_frame_alt_ref = 1;
+cpi->refresh_golden_frame = 1;
+break;
+}
+}
+#else
+cpi->is_src_frame_alt_ref = cpi->alt_ref_source
+&& (cpi->source == cpi->alt_ref_source);
+#endif
+if (cpi->is_src_frame_alt_ref) {
+// Current frame is an ARF overlay frame.
+#if CONFIG_MULTIPLE_ARF
+cpi->alt_ref_source[i] = NULL;
+#else
+cpi->alt_ref_source = NULL;
+#endif
+// Don't refresh the last buffer for an ARF overlay frame. It will
+// become the GF so preserve last as an alternative prediction option.
+cpi->refresh_last_frame = 0;
+}
+#if CONFIG_MULTIPLE_ARF
+++cpi->next_frame_in_order;
+#endif
+}
+}
+if (cpi->source) {
+cpi->un_scaled_source = cpi->Source = force_src_buffer ? force_src_buffer
+: &cpi->source->img;
+*time_stamp = cpi->source->ts_start;
+*time_end = cpi->source->ts_end;
+*frame_flags = cpi->source->flags;
+// fprintf(fp_out, "   Frame:%d", cm->current_video_frame);
+#if CONFIG_MULTIPLE_ARF
+if (cpi->multi_arf_enabled) {
+// fprintf(fp_out, "   seq_no:%d  this_frame_weight:%d",
+//         cpi->sequence_number, cpi->this_frame_weight);
+} else {
+// fprintf(fp_out, "\n");
+}
+#else
+// fprintf(fp_out, "\n");
+#endif
+#if CONFIG_MULTIPLE_ARF
+if ((cm->frame_type != KEY_FRAME) && (cpi->pass == 2))
+cpi->source_alt_ref_pending = is_next_frame_arf(cpi);
+#endif
+} else {
+*size = 0;
+if (flush && cpi->pass == 1 && !cpi->twopass.first_pass_done) {
+vp9_end_first_pass(cpi);    /* get last stats packet */
+cpi->twopass.first_pass_done = 1;
+}
+// fclose(fp_out);
+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 (!cpi->refresh_alt_ref_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 = cpi->last_end_time_stamp_seen
+- cpi->last_time_stamp_seen;
+this_duration = cpi->source->ts_end - cpi->last_end_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) {
+vp9_new_framerate(cpi, 10000000.0 / this_duration);
+} else {
+// 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.
+const double interval = MIN((double)(cpi->source->ts_end
+- cpi->first_time_stamp_ever), 10000000.0);
+double avg_duration = 10000000.0 / cpi->oxcf.framerate;
+avg_duration *= (interval - avg_duration + this_duration);
+avg_duration /= interval;
+vp9_new_framerate(cpi, 10000000.0 / avg_duration);
+}
+}
+cpi->last_time_stamp_seen = cpi->source->ts_start;
+cpi->last_end_time_stamp_seen = cpi->source->ts_end;
+}
+// start with a 0 size frame
+*size = 0;
+// Clear down mmx registers
+vp9_clear_system_state();  // __asm emms;
+/* find a free buffer for the new frame, releasing the reference previously
+* held.
+*/
+cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
+cm->new_fb_idx = get_free_fb(cm);
+#if CONFIG_MULTIPLE_ARF
+/* Set up the correct ARF frame. */
+if (cpi->refresh_alt_ref_frame) {
+++cpi->arf_buffered;
+}
+if (cpi->multi_arf_enabled && (cm->frame_type != KEY_FRAME) &&
+(cpi->pass == 2)) {
+cpi->alt_fb_idx = cpi->arf_buffer_idx[cpi->sequence_number];
+}
+#endif
+/* Get the mapping of L/G/A to the reference buffer pool */
+cm->active_ref_idx[0] = cm->ref_frame_map[cpi->lst_fb_idx];
+cm->active_ref_idx[1] = cm->ref_frame_map[cpi->gld_fb_idx];
+cm->active_ref_idx[2] = cm->ref_frame_map[cpi->alt_fb_idx];
+#if 0  // CONFIG_MULTIPLE_ARF
+if (cpi->multi_arf_enabled) {
+fprintf(fp_out, "      idx(%d, %d, %d, %d) active(%d, %d, %d)",
+cpi->lst_fb_idx, cpi->gld_fb_idx, cpi->alt_fb_idx, cm->new_fb_idx,
+cm->active_ref_idx[0], cm->active_ref_idx[1], cm->active_ref_idx[2]);
+if (cpi->refresh_alt_ref_frame)
+fprintf(fp_out, "  type:ARF");
+if (cpi->is_src_frame_alt_ref)
+fprintf(fp_out, "  type:OVERLAY[%d]", cpi->alt_fb_idx);
+fprintf(fp_out, "\n");
+}
+#endif
+cm->frame_type = INTER_FRAME;
+cm->frame_flags = *frame_flags;
+// Reset the frame pointers to the current frame size
+vp9_realloc_frame_buffer(get_frame_new_buffer(cm),
+cm->width, cm->height,
+cm->subsampling_x, cm->subsampling_y,
+VP9BORDERINPIXELS);
+// Calculate scaling factors for each of the 3 available references
+for (i = 0; i < ALLOWED_REFS_PER_FRAME; ++i)
+vp9_setup_scale_factors(cm, i);
+vp9_setup_interp_filters(&cpi->mb.e_mbd, DEFAULT_INTERP_FILTER, cm);
+if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
+vp9_vaq_init();
+}
+if (cpi->pass == 1) {
+Pass1Encode(cpi, size, dest, frame_flags);
+} else if (cpi->pass == 2) {
+Pass2Encode(cpi, size, dest, frame_flags);
+} else {
+encode_frame_to_data_rate(cpi, size, dest, frame_flags);
+}
+if (cm->refresh_frame_context)
+cm->frame_contexts[cm->frame_context_idx] = cm->fc;
+if (*size > 0) {
+// if its a dropped frame honor the requests on subsequent frames
+cpi->droppable = !frame_is_reference(cpi);
+// return to normal state
+cm->reset_frame_context = 0;
+cm->refresh_frame_context = 1;
+cpi->refresh_alt_ref_frame = 0;
+cpi->refresh_golden_frame = 0;
+cpi->refresh_last_frame = 1;
+cm->frame_type = INTER_FRAME;
+}
+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->count++;
+if (cpi->b_calculate_psnr) {
+double ye, ue, ve;
+double frame_psnr;
+YV12_BUFFER_CONFIG      *orig = cpi->Source;
+YV12_BUFFER_CONFIG      *recon = cpi->common.frame_to_show;
+YV12_BUFFER_CONFIG      *pp = &cm->post_proc_buffer;
+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;
+ye = (double)calc_plane_error(orig->y_buffer, orig->y_stride,
+recon->y_buffer, recon->y_stride,
+orig->y_crop_width, orig->y_crop_height);
+ue = (double)calc_plane_error(orig->u_buffer, orig->uv_stride,
+recon->u_buffer, recon->uv_stride,
+orig->uv_crop_width, orig->uv_crop_height);
+ve = (double)calc_plane_error(orig->v_buffer, orig->uv_stride,
+recon->v_buffer, recon->uv_stride,
+orig->uv_crop_width, orig->uv_crop_height);
+sq_error = ye + ue + ve;
+frame_psnr = vp9_mse2psnr(t_samples, 255.0, sq_error);
+cpi->total_y += vp9_mse2psnr(y_samples, 255.0, ye);
+cpi->total_u += vp9_mse2psnr(uv_samples, 255.0, ue);
+cpi->total_v += vp9_mse2psnr(uv_samples, 255.0, ve);
+cpi->total_sq_error += sq_error;
+cpi->total  += frame_psnr;
+{
+double frame_psnr2, frame_ssim2 = 0;
+double weight = 0;
+#if CONFIG_VP9_POSTPROC
+vp9_deblock(cm->frame_to_show, &cm->post_proc_buffer,
+cm->lf.filter_level * 10 / 6);
+#endif
+vp9_clear_system_state();
+ye = (double)calc_plane_error(orig->y_buffer, orig->y_stride,
+pp->y_buffer, pp->y_stride,
+orig->y_crop_width, orig->y_crop_height);
+ue = (double)calc_plane_error(orig->u_buffer, orig->uv_stride,
+pp->u_buffer, pp->uv_stride,
+orig->uv_crop_width, orig->uv_crop_height);
+ve = (double)calc_plane_error(orig->v_buffer, orig->uv_stride,
+pp->v_buffer, pp->uv_stride,
+orig->uv_crop_width, orig->uv_crop_height);
+sq_error = ye + ue + ve;
+frame_psnr2 = vp9_mse2psnr(t_samples, 255.0, sq_error);
+cpi->totalp_y += vp9_mse2psnr(y_samples, 255.0, ye);
+cpi->totalp_u += vp9_mse2psnr(uv_samples, 255.0, ue);
+cpi->totalp_v += vp9_mse2psnr(uv_samples, 255.0, ve);
+cpi->total_sq_error2 += sq_error;
+cpi->totalp  += frame_psnr2;
+frame_ssim2 = vp9_calc_ssim(cpi->Source,
+recon, 1, &weight);
+cpi->summed_quality += frame_ssim2 * weight;
+cpi->summed_weights += weight;
+frame_ssim2 = vp9_calc_ssim(cpi->Source,
+&cm->post_proc_buffer, 1, &weight);
+cpi->summedp_quality += frame_ssim2 * weight;
+cpi->summedp_weights += weight;
+#if 0
+{
+FILE *f = fopen("q_used.stt", "a");
+fprintf(f, "%5d : Y%f7.3:U%f7.3:V%f7.3:F%f7.3:S%7.3f\n",
+cpi->common.current_video_frame, y2, u2, v2,
+frame_psnr2, frame_ssim2);
+fclose(f);
+}
+#endif
+}
+}
+if (cpi->b_calculate_ssimg) {
+double y, u, v, frame_all;
+frame_all =  vp9_calc_ssimg(cpi->Source, cm->frame_to_show,
+&y, &u, &v);
+cpi->total_ssimg_y += y;
+cpi->total_ssimg_u += u;
+cpi->total_ssimg_v += v;
+cpi->total_ssimg_all += frame_all;
+}
+}
+}
+#endif
+// fclose(fp_out);
+return 0;
+}
+int vp9_get_preview_raw_frame(VP9_PTR comp, YV12_BUFFER_CONFIG *dest,
+vp9_ppflags_t *flags) {
+VP9_COMP *cpi = (VP9_COMP *) comp;
+if (!cpi->common.show_frame) {
+return -1;
+} else {
+int ret;
+#if CONFIG_VP9_POSTPROC
+ret = vp9_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  // !CONFIG_VP9_POSTPROC
+vp9_clear_system_state();
+return ret;
+}
+}
+int vp9_set_roimap(VP9_PTR comp, unsigned char *map, unsigned int rows,
+unsigned int cols, int delta_q[MAX_SEGMENTS],
+int delta_lf[MAX_SEGMENTS],
+unsigned int threshold[MAX_SEGMENTS]) {
+VP9_COMP *cpi = (VP9_COMP *) comp;
+signed char feature_data[SEG_LVL_MAX][MAX_SEGMENTS];
+struct segmentation *seg = &cpi->common.seg;
+int i;
+if (cpi->common.mb_rows != rows || cpi->common.mb_cols != cols)
+return -1;
+if (!map) {
+vp9_disable_segmentation((VP9_PTR)cpi);
+return 0;
+}
+// Set the segmentation Map
+vp9_set_segmentation_map((VP9_PTR)cpi, map);
+// Activate segmentation.
+vp9_enable_segmentation((VP9_PTR)cpi);
+// Set up the quant, LF and breakout threshold segment data
+for (i = 0; i < MAX_SEGMENTS; i++) {
+feature_data[SEG_LVL_ALT_Q][i] = delta_q[i];
+feature_data[SEG_LVL_ALT_LF][i] = delta_lf[i];
+cpi->segment_encode_breakout[i] = threshold[i];
+}
+// Enable the loop and quant changes in the feature mask
+for (i = 0; i < MAX_SEGMENTS; i++) {
+if (delta_q[i])
+vp9_enable_segfeature(seg, i, SEG_LVL_ALT_Q);
+else
+vp9_disable_segfeature(seg, i, SEG_LVL_ALT_Q);
+if (delta_lf[i])
+vp9_enable_segfeature(seg, i, SEG_LVL_ALT_LF);
+else
+vp9_disable_segfeature(seg, i, SEG_LVL_ALT_LF);
+}
+// Initialize the feature data structure
+// SEGMENT_DELTADATA    0, SEGMENT_ABSDATA      1
+vp9_set_segment_data((VP9_PTR)cpi, &feature_data[0][0], SEGMENT_DELTADATA);
+return 0;
+}
+int vp9_set_active_map(VP9_PTR comp, unsigned char *map,
+unsigned int rows, unsigned int cols) {
+VP9_COMP *cpi = (VP9_COMP *) comp;
+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 {
+// cpi->active_map_enabled = 0;
+return -1;
+}
+}
+int vp9_set_internal_size(VP9_PTR comp,
+VPX_SCALING horiz_mode, VPX_SCALING vert_mode) {
+VP9_COMP *cpi = (VP9_COMP *) comp;
+VP9_COMMON *cm = &cpi->common;
+int hr = 0, hs = 0, vr = 0, vs = 0;
+if (horiz_mode > ONETWO || vert_mode > ONETWO)
+return -1;
+Scale2Ratio(horiz_mode, &hr, &hs);
+Scale2Ratio(vert_mode, &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;
+assert(cm->width <= cpi->initial_width);
+assert(cm->height <= cpi->initial_height);
+update_frame_size(cpi);
+return 0;
+}
+int vp9_set_size_literal(VP9_PTR comp, unsigned int width,
+unsigned int height) {
+VP9_COMP *cpi = (VP9_COMP *)comp;
+VP9_COMMON *cm = &cpi->common;
+check_initial_width(cpi, NULL);
+if (width) {
+cm->width = width;
+if (cm->width * 5 < cpi->initial_width) {
+cm->width = cpi->initial_width / 5 + 1;
+printf("Warning: Desired width too small, changed to %d \n", cm->width);
+}
+if (cm->width > cpi->initial_width) {
+cm->width = cpi->initial_width;
+printf("Warning: Desired width too large, changed to %d \n", cm->width);
+}
+}
+if (height) {
+cm->height = height;
+if (cm->height * 5 < cpi->initial_height) {
+cm->height = cpi->initial_height / 5 + 1;
+printf("Warning: Desired height too small, changed to %d \n", cm->height);
+}
+if (cm->height > cpi->initial_height) {
+cm->height = cpi->initial_height;
+printf("Warning: Desired height too large, changed to %d \n", cm->height);
+}
+}
+assert(cm->width <= cpi->initial_width);
+assert(cm->height <= cpi->initial_height);
+update_frame_size(cpi);
+return 0;
+}
+void vp9_set_svc(VP9_PTR comp, int use_svc) {
+VP9_COMP *cpi = (VP9_COMP *)comp;
+cpi->use_svc = use_svc;
+return;
+}
+int vp9_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest) {
+int i, j;
+int total = 0;
+uint8_t *src = source->y_buffer;
+uint8_t *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 += vp9_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 vp9_get_quantizer(VP9_PTR c) {
+return ((VP9_COMP *)c)->common.base_qindex;
+}

The Tor Browser / file comparison

comparison: media/libvpx/vp9/encoder/vp9_onyx_if.c

media/libvpx/vp9/encoder/vp9_onyx_if.c