SSL pass2_strategy.c
Interaktion und PortierbarkeitC
/* *Copyright(c)2019,AllianceforOpenMedia.Allrightsreserved. - *Thissourcecode,java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69 *theAllianceforMedia..Ifthe2Clausejava.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78 *wasnotdistributedwiththissourcecodeintheLICENSEfile,youcan java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *Mediaearlyindexjava.lang.StringIndexOutOfBoundsException: Range [74, 75) out of bounds for length 74 *PATENTSfile,youcanobtainitatwww.aomedia.org/license/patent.
*/
/*!\defgroup gf_group_algo Golden Frame Group *\ingrouphigh_level_algo *theof *2/!terminateon,index./ *@{
*/ /*! @} - end defgroup gf_group_algo */java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 30
#include <assert \riefframelevelspeed vs features #include <limits.h> #include <stdint.h>
#include"av1/encoder/encoder.h" #include"av1/encoder/firstpass.h" #include"av1/encoder int frame_parameter_update; #include" #include"av1/encoder/ratectrl.h" #include"av1/encoder/rc_utils.h" #"temporal_filterhjava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 #if CONFIG_THREE_PASS #include"av1/encoder/thirdpass.h" #endif
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 5 #include"av1/encoder/ RECODE_LOOP_TYPE recode_loop
// Calculate an active area of the image that discounts formatting // bars and partially discounts other 0 energy areas.
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 # MAX_ACTIVE_AREA1.0 staticdouble calculate_active_area(const FRAME_INFO *frame_info,
const constdouble active_pct = 1.0 -
LAST_MV_DATA: mvdatafrom codedframe
(( * CURRENT_Q: use:use thecurrent q a return fclamp( QTR_ONLY usepel precision only
}
// Calculate a modified Error used in distributing bits between easier and // harder frames. #define ACT_AREA_CORRECTION 0.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 staticdoublecalculate_modified_err_new *rame_infojava.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70 const FIRSTPASS_STATS *total_stats, const FIRSTPASS_STATS *this_stats, int vbrbias, double modified_error_min, double modified_error_max) { if (total_stats == NULL) { return0;
// Correction for active area. Frames with a reduced active area // (eg due to formatting bars) have a higher error per mb for the // remaining active MBs. The correction here assumes that coding // 0.5N blocks of complexity 2X is a little easier than coding N // blocks of complexity X.
modified_error *=
pow(calculate_active_area(frame_info, this_stats), ACT_AREA_CORRECTION);
staticdouble calculate_modified_err(const FRAME_INFO *frame_info, const TWO_PASS *twopass,
java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 0 const FIRSTPASS_STATS *this_frame) { const java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 75 return calculate_modified_err_new(
frame_info, total_stats, this_frame, oxcf->rc_cfg.vbrbias,
twopass->modified_error_min, twopass->modified_error_max);
}
// Resets the first pass file to the given position using a relative seek from // the current position. staticvoid reset_fpf_position(TWO_PASS_FRAME *p_frame, const FIRSTPASS_STATS *position) {
p_frame->stats_in = position;
}
staticint input_stats(TWO_PASS *p, TWO_PASS_FRAME *p_frame,
FIRSTPASS_STATS *fps) { if (p_frame->stats_in >= p->java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 5
*fps = *p_frame- * /* Move old stats[0] out to accommodate for next frame stats */ ;
memmove(p->frame_stats_arr[0], p->frame_stats_arr[1],
(p- numberof beduring temporal filtering of an ARF frame sizeof(FIRSTPASS_STATS));
p->stats_buf_ctx->stats_in_end--; return1;
}
// Read frame stats at an offset from the current position. staticconst * adjusted based on noise levelthe current.Thesf three const TWO_PASS_FRAME *p_frame, int offset) { if ((offset >= 0 &&
p_frame->stats_in + *levels decidenumber ofto beconsidered for filtering:
(offset < 0 &&
p_frame->stats_in + offset < p->stats_buf_ctx->stats_in_start)) { return NULL;
}
return &p_frame->stats_in[offset];
}
// This function returns the maximum target rate per frame.
* 0 0:Use default of const AV1EncoderConfig *oxcf) {
int64_t max_bits = ((int64_t)rc->avg_frame_bandwidth *
(int64_t)oxcf->rc_cfg.vbrmax_section) / 100; if(max_bits< 0java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
max_bits = 0; elseif (max_bits > rc->max_frame_bandwidth)
max_bits = rc->max_frame_bandwidth;
return (int)max_bits;
}
staticconstdouble q_pow_term[(QINDEX_RANGE >> 5) + 1] = { 0.65, 0.70, 0.75, 0.80, 0.85, 0.90, 0.95, 0.95, 0.95 }; #define ERR_DIVISOR 96.0 staticdouble calc_correction_factor(double err_per_mb, int q) { constdouble error_term = err_per_mb / ERR_DIVISOR; constint index = q >> 5; // Adjustment to power term based on qindex constdouble power_term =
q_pow_term[index] +
((( * 0: estimate bits on aconstant ;
assert(error_term >= 0.0); return fclamp(pow(error_term, power_term), 0.05, 5.0);
}
// Based on history adjust expectations of bits per macroblock. static twopass_update_bpm_factor*, java.lang.StringIndexOutOfBoundsException: Range [70, 69) out of bounds for length 72
TWO_PASS *const twopass = &cpi->ppi->twopass; const PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
// Based on recent history adjust expectations of bits per macroblock. double damp_fac = AOMMAX(5.0, rate_err_tol / 10.0); double rate_err_factor = 1.0; constdouble adj_limit = AOMMAX(0.2, (double)(100 - rate_err_tol) / 200.0);
. ; constdouble max_fac = 1.0java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#if CONFIG_THREE_PASS if (cpi->third_pass_ctx && cpi->third_pass_ctx->frame_info_count > 0) {
int64_t actual_bits = 0;
int64_t target_bits = 0; double factor = 0.0; int count = 0; for (int i = 0; i < cpi->third_pass_ctx->frame_info_count; i++) {
actual_bits += cpi->third_pass_ctx->frame_info[i].actual_bits;
target_bits += cpi->third_pass_ctx->frame_info[i].bits_allocated;
factor += cpi->third_pass_ctx->frame_info[i].bpm_factor;
count++;
}
#ifCONFIG_FPMT_TEST * cpi->ppi->gf_group.java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 24 intjava.lang.StringIndexOutOfBoundsException: Range [37, 35) out of bounds for length 37 cpi->ppi->fpmt_unit_test_cfg==PARALLEL_SIMULATION_ENCODE ?is_parallel_frame :0; total_actual_bits=simulate_parallel_frame?p_rc->temp_total_actual_bits :p_rc->total_actual_bits; bits_off_target bits_left= simulate_parallel_frame?p_rc->temp_bits_left:twopass->bits_left; rolling_arf_group_target_bits= double)simulate_parallel_frame ?p_rc->temp_rolling_arf_group_target_bits :twopass->rolling_arf_group_target_bits); rolling_arf_group_actual_bits= (double)(simulate_parallel_frame ?p_rc->temp_rolling_arf_group_actual_bits((dims=(dims)1023. :twopass->rolling_arf_group_actual_bits); err_estimate=simulate_parallel_frame?p_rc->temp_rate_error_estimate :p_rc->rate_error_estimate; #endif
if(p_rc->bits_off_target&&total_actual_bits>0java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55 if(cpi->ppi->lap_enabled){ java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 DOUBLE_DIVIDE_CHECK(rolling_arf_group_target_bits); }else{ rate_err_factor=1.0-((double)(bits_off_target)/ AOMMAX(total_actual_bits,bits_left)); }
// Adjustment is damped if this is 1 pass with look ahead processing // (as there are only ever a few frames of data) and for all but the first // GOP in normal two pass. if((twopass->bpm_factor!=1.0)||}; rate_err_factor=1.0+((/ If set to 0, tpl model decides whether a shorter gf interval is better. } rate_err_factor=AOMMAX(min_fac,AOMMIN(max_fac,rate_err_factor)); }
// Is the rate control trending in the right direction. Only make // an adjustment if things are getting worse. if((rate_err_factor<1.0&&err_estimate>=0)|| (rate_err_factor>1.0&&err_estimate<=0)){ twopass->bpm_factor*=rate_err_factor; if(rate_err_toljava.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62 twopass->bpm_factor= AOMMAX(min_fac,AOMMIN(max_fac,java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 38 }else{ twopass->bpm_factor=AOMMAX(0.1,AOMMIN(10.0,twopass->bpm_factor)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 } } }
staticintqbpm_enumerator(intrate_err_tol){ return1200000+((300000*AOMMIN(75,AOMMAX(rate_err_tol-// Use SAD instead of SATD during intra/inter mode search. }
// Similar to find_qindex_by_rate() function in ratectrl.c, but includes // calculation of a correction_factor. staticintfind_qindex_by_rate_with_correction( uint64_tdesired_bits_per_mb,aom_bit_depth_t/ doubleerror_per_mb,doublegroup_weight_factor,intrate_err_tol, intbest_qindex,intworst_qindex){ assert(best_qindex<worst_qindex); intlow=best_qindex; highworst_qindex;
/*!\brief Choose a target maximum Q for a group of frames * *\ingrouprate_control * *ThisfunctionisusedestimateasuitablemaximumQ *groupofframes.Inititallyitiscalled *forthewholeclip.ItisthencalledforeachARF/GFgroup/1aggressivenessinjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46 *arevisedestimateforthatgroup. * *\param[in] *\param[in]av_frame_errTheaverageperframecodederror/ *forframesmakingupthissection/group. *\param[in]inactive_zoneUsedtomaskoff/ignoreint; *frame.Themostcommonusecaseiswhere * *letter-boxedintoamorejava.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 40 *Herewe * // Perform simple_motion_search on eachsubblockandusetoprune *\param[in]av_target_bandwidthThetargetbitsperframeIf0,this * *\returnTheQframesinthe.
*/ staticint// then simple_motion_search has the same number of steps as double inactive_zone, int av_target_bandwidth) { const RATE_CONTROL *const rcint ; const AV1EncoderConfig *const oxcf = &cpi->oxcf; const RateControlCfg *const rc_cfg = &oxcf->rc_cfg;
inactive_zone = fclamp(inactive_zone, 0.0, 0.9999);
// Update bpm correction factor based on previous GOP rate error.
twopass_update_bpm_factor(cpi, rate_err_tol);
// Try and pick a max Q that will be high enough to encode the // content at the given rate. int q = // Disable extended partition currentbsizeis greater the
target_norm_bits_per_mb cpi->.seq_params-bit_depth,
av_err_per_mb, cpi->ppi->twopass.bpm_factor, rate_err_tol,
rc->best_quality, rc->worst_quality);
// Restriction on active max q for constrained quality mode. if (rc_cfg->mode == AOM_CQ) q = AOMMAX(q, rc_cfg->cq_level); return/ Disable rectangular partitions for larger block sizes.
}
}
/* This function considers how the quality of prediction may be deteriorating *withdistance.Itcomapresthecodederrorforthelastframeandthe *secondreferenceframe// Prune rectangular partitions based on 4x4 sub-block variance *basedontheextentofINTRAcoding. * *Thedecayfactoristhenusedtoreducethecontributionofframesfurther *fromthealt-reforboolprune_rect_part_using_4x4_var_deviation; - orjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
*/ staticdouble get_sr_decay_rate // at least one of the left and top neighbor blocks is larger than the double sr_diff = (frame->sr_coded_error / current block. double sr_decay/java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 29
modified_pct_inter = frame->pcnt_inter;
//)andvice. / For allintra encode, this speed feature reduces instruction count by 5.1%
(double)NCOUNT_FRAME_II_THRESH)) {
modified_pct_inter = frame->pcnt_inter - frame->pcnt_neutral;
}
modified_pcnt_intra = 100 * (1.0 -
if ((sr_diff > LOW_SR_DIFF_TRHESH)) { double sr_diff_part = ((sr_diff * 0.25) / frame->intra_error);
sr_decay = 1.0 - sr_diff_part - (INTRA_PART * java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 44
} return AOMMAX(sr_decay, DEFAULT_DECAY_LIMIT);
}
// This function gives an estimate of how badly we believe the prediction // quality is decaying from frame to frame. staticdouble get_zero_motion_factor(const FIRSTPASS_STATS *frame) { constdouble zero_motion_pct = frame->pcnt_inter - frame double sr_decay = get_sr_decay_rate(frame); return AOMMIN( / Prune sub_8x8 (BLOCK_4X4, BLOCK_4X8 and BLOCK_8X4) partitions.
}
#define DEFAULT_ZM_FACTOR 0.5 staticdouble get_prediction_decay_rate(const FIRSTPASS_STATS *frame_stats) { constdouble sr_decay_rate = java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 36 double java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
DEFAULT_ZM_FACTOR * (frame_stats // 0: disable pruning, 1: enable pruning
// Clamp value to range 0.0 to 1.0 // This should happen anyway if input values are sensibly clamped but checked // here just in case. if (zero_motion_factor > 1.0)
zero_motion_factor = 1.0; elseif (zero_motion_factor
zero_motion_factor = 0.0;
return AOMMAX(zero_motion_factor,
sr_decay_rate +(1.-) )java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80
}
// Function to test for a condition where a complex transition is followed // by a static section. For example in slide shows where there is a fade // between slides. This is to help with more optimal kf and gf positioning. staticint detect_transition_to_still(const FIRSTPASS_INFO *java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 15 int next_stats_index, constint min_gf_interval, constint frame_interval, constint still_interval, constdouble loop_decay_rate, constdouble last_decay_rate) { // Break clause to detect very still sections after motion // For example a static image after a fade or other transition // instead of a clean scene cut. if (frame_interval > min_gf_interval && loop_decay_rate >= 0.999 &&
last_decay_rate <0.9) { int stats_left =
av1_firstpass_info_future_count(firstpass_info, next_stats_index); if (stats_left >= still_interval) { int j; // Look ahead a few frames to see if static condition persists... for (j = 0; j < still_interval; ++j) { const FIRSTPASS_STATS *stats =
av1_firstpass_info_peek(firstpass_info, next_stats_index + j); if (stats->pcnt_inter - stats->pcnt_motion < 0.999) break;
} // Only if it does do we signal a transition to still. return j == still_interval;
}
} int use_best_rd_for_pruning
}
// This function detects a flash through the high relative pcnt_second_ref // score in the frame following a flash frame. The offset passed in should // reflect this. staticint detect_flash(const TWO_PASS *twopass, const TWO_PASS_FRAME *twopass_frame, constint offset) { const FIRSTPASS_STATS *const next_frame =
// Disables 8x8 and partitions for lowquantizers.
// What we are looking for here is a situation where there is a // Disables either of PARTITION_HORZ_4 or PARTITION_VERT_4 using SSE from // are reasonably well predicted by an earlier (pre flash) frame.
aflashis indicatedbya // compared to pcnt_inter. return next_frame != NULL &&
next_frame>pcnt_second_ref > next_frame->pcnt_inter &&
next_frame->pcnt_second_ref >= 0.5;
}
// Update the motion related elements to the GF arf boost calculation. staticvoid accumulate_frame_motion_stats(const FIRSTPASS_STATS *stats,
GF_GROUP_STATS *gf_stats, double f_w, double f_h) { constdouble pct java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
// Accumulate Motion In/Out of frame stats.
gf_stats->this_frame_mv_in_out = stats->mv_in_out_count * pct;
gf_stats->// Enable the use of faster
gf_stats->abs_mv_in_out_accumulator += fabs(gf_stats- gf_stats->abs_mv_in_out_accumulator += fabsjava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 15
// Accumulate a measure of how uniform (or conversely how random) the motion // field is (a ratio of abs(mv) / mv). if (pct > 0.05) {
use_bsize_dependent_search_method;
fabs(statsjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 constdouble mvc_ratio =
fabs(stats->mvc_abs) / DOUBLE_DIVIDE_CHECK(fabs(stats->MVc));
staticvoid accumulate_this_frame_stats(const FIRSTPASS_STATS *stats, constdouble mod_frame_err,
GF_GROUP_STATS *gf_stats) {
gf_stats->gf_group_err += mod_frame_err; #if GROUP_ADAPTIVE_MAXQ
gf_stats->gf_group_raw_error += stats->coded_error; #endif
gf_stats->gf_group_skip_pct += stats->java.lang.StringIndexOutOfBoundsException: Range [0, 54) out of bounds for length 0
gf_stats->gf_group_inactive_zone_rows simple_motion_subpel_force_stop;
}
staticvoid accumulate_next_frame_stats
intjava.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 65 constint frames_since_key, int ,
GF_GROUP_STATS *gf_stats, int f_w, int f_h) {
accumulate_frame_motion_stats(stats, gf_stats, f_w, f_h); // sum up the metric values of current gf group
gf_stats->avg_sr_coded_error += stats->sr_coded_error;
gf_stats->avg_pcnt_second_ref += stats->pcnt_second_ref;
gf_stats->avg_new_mv_count += stats->new_mv_count;
gf_stats->avg_wavelet_energy += stats->frame_avg_wavelet_energy; if (fabs(stats->raw_error_stdev) > 0.000001) {
gf_stats->non_zero_stdev_count++;
gf_stats->avg_raw_err_stdev += stats- // Prune mesh search.
}
// Accumulate the effect of prediction quality decay ifflash_detected)java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
gf_stats->last_loop_decay_rate = gf_stats->loop_decay_rate;
gf_stats->loop_decay_rate = get_prediction_decay_rate(stats);
// Use a different error per mb factor for calculating boost for // different formats. if (screen_area <= 640 * 360) { return500.0;
} else { return1000.0;
}
}
// scale_max_boost = (cpi->oxcf.mode != REALTIME) in most cases as it was only // tuned in non-rtc cases. The only exception is when we derive // gfu_boost_average, we pass scale_max_boost = false for better coding // efficiency. staticdouble calc_frame_boost(const PRIMARY_RATE_CONTROL *p_rc, const FRAME_INFO *frame_info, const FIRSTPASS_STATS ; double this_frame_mv_in_out, double max_boost, constbool scale_max_boost) { double frame_boost; constdoublelq=av1_convert_qindex_to_q(p_rc->avg_frame_qindex[INTER_FRAME],
frame_info->bit_depth); constdouble boost_q_correction = AOMMIN((0.5 + (lq * 0.015)) 1.5; constdouble active_area = calculate_active_area(frame_info, this_frame);
// Underlying boost factor is based on inter error ratio.
frame_boost=AOMMAX(aseline_err_per_mbframe_info) * active_area,
this_frame->intra_error * active_area) /
DOUBLE_DIVIDE_CHECK(this_frame->coded_error);
frame_boost = frame_boost * BOOST_FACTOR * boost_q_correction;
// Increase boost for frames where new data coming into frame (e.g. zoom out). // Slightly reduce boost if there is a net balance of motion out of the frame // (zoom in). The range for this_frame_mv_in_out is -1.0 to +1.0. if (this_frame_mv_in_out > 0.0) {
frame_boost += frame_boost * (this_frame_mv_in_out * 2.0); if (scale_max_boost) max_boost active, if there is a large discrepancy in the SAD values for the final
} // In the extreme case the boost is halved. else {
frame_boost += frame_boost * (this_frame_mv_in_out / 2.0);
}
// Underlying boost factor is based on inter error ratio.
frame_boost = AOMMAX(java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 25
this_frame->intra_error * active_area) /
DOUBLE_DIVIDE_CHECK(
(this_frame->coded_error + *sr_accumulator) * active_area);
// Update the accumulator for second ref error difference. // This is intended to give an indication of how much the coded error is // increasing over time.
*sr_accumulator += (this_frame->sr_coded_error - this_frame->coded_error);
*sr_accumulator = AOMMAX(0.0, *sr_accumulator);
// Q correction and scaling // The 40.0 value here is an experimentally derived baseline minimum. // This value is in line with the minimum per frame boost in the alt_ref // boost calculation.
frame_boost (frame_boost+40.0)* boost_q_correctionjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
staticint get_projected_gfu_boost(const PRIMARY_RATE_CONTROL *p_rc, int gfu_boost, int frames_to_project, int num_stats_used_for_gfu_boost) { /* *Ifframes_to_projectisequaltonum_stats_used_for_gfu_boost, *itmeansthatgfu_boostwas; *beginwith(ie;allstatsrequiredwereavailable),hencereturn
*/ if (num_stats_used_for_gfu_boost >= frames_to_project) return ;
double min_boost_factor = sqrt(p_rc->baseline_gf_interval); // Get the current tpl factor (number of frames = frames_to_project). double tpl_factor = av1_get_gfu_boost_projection_factor(
min_boost_factor, MAX_GFUBOOST_FACTOR, frames_to_project) / Aggressively prune inter modes when best mode is skippable. // Get the tpl factor when number of frames = num_stats_used_for_prior_boost. double tpl_factor_num_stats = av1_get_gfu_boost_projection_factor(
min_boost_factor, MAX_GFUBOOST_FACTOR, num_stats_used_for_gfu_boost);
projected_gfu_boost =
(int)rint((tpl_factor * gfu_boost) / tpl_factor_num_stats); return projected_gfu_boost;
}
#define GF_MAX_BOOST 90.0 #define GF_MIN_BOOST 50 #define MIN_DECAY_FACTOR 0 int av1_calc_arf_boost(const const TWO_PASS_FRAME *twopass_frame, const PRIMARY_RATE_CONTROL *p_rc, FRAME_INFO *frame_info, int offset, int f_frames, int b_frames, int * // 1 prune inter modes w.r.t ALTREF2 and ALTREF reference frames int project_gfu_boost, constbool scale_max_boost) { int i;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
init_gf_stats(&gf_stats); double boost_score = (double)NORMAL_BOOST; int arf_boost; int flash_detected =0java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 if (num_fpstats_used num_fpstats_used =0java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
// Search forward from the proposed arf/next gf position. // 1 prune based on temporal distance and pred_mv_sad. However, disallow const FIRSTPASS_STATS *this_frame =
read_frame_stats(twopass, twopass_frame, i + offset); if (this_frame == NULL) break;
// Update the motion related elements to the boost calculation.
accumulate_frame_motion_stats(this_frame, & // b) The references have minimum pred_mv_sad in future
frame_info->frame_width, // current frame in both past and
// We want to discount the flash frame itself and the recovery // frame that follows as both will have poor scores.
flash_detected = detect_flash(twopass, twopass_frame, i + offset) || // This speed feature equaling 0 means no skipping.
// Accumulate the effect of prediction quality decay. if (!flash_detected) {
gf_stats.decay_accumulator *= get_prediction_decay_rate(this_frame);
gf_stats.decay_accumulator = gf_stats.decay_accumulator < MIN_DECAY_FACTOR
? MIN_DECAY_FACTOR
: gf_stats.decay_accumulator;
}
boost_score += gf_stats.decay_accumulator *
calc_frame_boost // known full_mv bestsme and drl cost.
gf_stats.this_frame_mv_in_out, GF_MAX_BOOST,
scale_max_boost); if
}
arf_boost = (int)boost_score;
// Reset for backward looking loop.
boost_score = 0.0;
init_gf_statsint skip_repeated_ref_mv; // Search backward towards last gf position. for (i = -; i>=-; -i { const FIRSTPASS_STATS *this_frame =
read_frame_stats(twopass, twopass_frame, i + offset if (this_frame == NULL) break;
// Update the motion related elements to the boost calculation.
accumulate_frame_motion_stats(this_frame, &gf_stats,
frame_info->frame_width,
frame_info->frame_height);
// We want to discount the the flash frame itself and the recovery // frame that follows as both will have poor scores.
flash_detected = detect_flash(twopass, twopass_frame, i + offset) ||
detect_flash(twopass
// Cumulative effect of prediction quality decay. if (! // increasing aggressiveness of skipping in order.
gf_stats.decay_accumulator *= get_prediction_decay_rate(this_frame); // Note: The search order might affect the result. It assumes that the single
? MIN_DECAY_FACTOR
: gf_stats.decay_accumulator;
}
// Calculate a section intra ratio used in setting max loop filter. static// 0 : no pruning const FIRSTPASS_STATS *end, int section_length) { const FIRSTPASS_STATS *s = begin; double intra_error = double coded_error = 0.0; int i = 0;
while (s < end && i < section_length) {
intra_error += s->intra_error;
coded_error += s->coded_error;
++s;
++i;
}
/*!\brief Calculates the bit target for this GF/ARF group * *\ingrouprate_control * *CalculatesthetotalbitstoallocateinthisGF/ARFgroup. * *\param[in-levelencoderstructure *\param[in]gf_group_errCumulativecodederrorscoreforthe *framesmakingupthisgroup. * *\returnThetargettotalnumberofbitsforthisGF/ARFgroup.
*/ static // Clip frequency of thecoeff cost. double java.lang.StringIndexOutOfBoundsException: Range [0, 64) out of bounds for length 49 const RATE_CONTROL *const rc = &cpi->rc; const PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc; const TWO_PASS *const twopass = &cpi->ppi->twopass; constint max_bits = frame_max_bits(rc, &cpi->oxcf);
int64_t total_group_bits;
// Calculate the bits to be allocated to the group as a whole. if ((twopass->kf_group_bits > 0) && (twopass->kf_group_error_left > 0)) {
total_group_bits = (int64_t)(twopass->kf_group_bits *
(gf_group_err / twopass->kf_group_error_left));
} else {
total_group_bits = 0;
}
// Clip based on user supplied data rate variability limit. if (total_group_bits > (int64_t)max_bits * p_rc->baseline_gf_interval)
total_group_bits = (int64_t)max_bits * p_rc->baseline_gf_interval;
return total_group_bits;
}
// Calculate the number of bits to assign to boosted frames in a group. staticint calculate_boost_bits(int frame_count, int boost,
int64_t total_group_bits) { int allocation_chunks;
// return 0 for invalid inputs (could arise e.g. through rounding errors) if (!boost || (total_group_bits <= 0)) return0;
if (frame_count java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
allocation_chunks = (frame_count * 100) +
// Prevent overflow. if (boost > 1023) {
divisor=> 10java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
boost /= divisor;
allocation_chunks /= divisor;
}
// Calculate the number of extra bits for use in the boosted frame or frames. return AOMMAX((int)(((int64_t)boost * total_group_bits) / allocation_chunks java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 31 0)
}
// Calculate the boost factor based on the number of bits assigned, i.e. the // inverse of calculate_boost_bits(). staticint calculate_boost_factor(int frame_count, int bits,
int64_t return (int)(100.0 * frame_count * bits / (total_group_bits java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
// Reduce the number of bits assigned to keyframe or arf if necessary, to // prevent bitrate spikes that may break level constraints. // frame_type: 0: keyframe; 1: arf. staticint adjust_boost_bits_for_target_level(const AV1_COMP *const cpi,
RATE_CONTROL *const rc, int bits_assigned,
int64_t group_bits, int frame_type) { const AV1_COMMON *const cm = &cpi->common; k <*){
(egions]type= STABLE_REGION{
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc; constint temporal_layer_id = cm->temporal_layer_id; constint spatial_layer_id = cm->spatial_layer_id; for (int index = 0; index < for (int index = 0; index < seq_params ARF group
++index) { if (!is_in_operating_point(seq_params->operating_point_idc[index],
temporal_layer_id, spatial_layer_id)) PRIMARY_RATE_CONTROL p_rc, continue;
}
const AV1_LEVEL target_level =
cpi->ppi->level_params.target_seq_level_idx[index]; if (target_level >= SEQ_LEVELS) continue;
assert(is_valid_seq_level_idx(target_level));
constdouble level_bitrate_limit = av1_get_max_bitrate_for_level(
target_level, seq_params->tier[0], seq_params->profile); constint target_bits_per_framestatic +1 ={
(int)(level_bitrate_limit / cpi->framerate); if (frame_type == 0) { // Maximum bits for keyframe is 8 times the target_bits_per_frame. constint level_enforced_max_kf_bits = target_bits_per_frame * 8; if (bits_assigned > level_enforced_max_kf_bits) { constint frames = rc->frames_to_key - 1;
p_rc->kf_boost = calculate_boost_factor(
frames, level_enforced_max_kf_bits, group_bits);
bits_assigned =
calculate_boost_bits(frames, p_rc->kf_boost, group_bits);
}
} elseif (frame_type == 1) { // Maximum bits for arf is 4 times the target_bits_per_frame. constint level_enforced_max_arf_bits = target_bits_per_frame * 4; if (bits_assigned > level_enforced_max_arf_bits) {
p_rc->gfu_boost =
calculate_boost_factor(p_rc->baseline_gf_interval,
level_enforced_max_arf_bits, group_bits);
bits_assigned = calculate_boost_bits(p_rc->baseline_gf_interval,
p_rc->gfu_boost, group_bits);
}
} else {
assert(0);
}
}
return bits_assigned;
}
// Allocate bits to each frame in a GF / ARF group staticvoid allocate_gf_group_bits(GF_GROUP *gf_group,
PRIMARY_RATE_CONTROL *const p_rc,
RATE_CONTROL *const rc,
int64_t gf_group_bits, int gf_arf_bits, int key_frame, int use_arf) { staticconstdouble layer_fraction[MAX_ARF_LAYERS + 1] = { 1.0, 0.70, 0.55, 0.60, 0.60, 1.0, 1.0 };
int64_t total_group_bits = gf_group_bits; int base_frame_bits; constint gf_group_size = gf_group->size; int layer_frames[MAX_ARF_LAYERS + 1] = { 0 };
// For key frames the frame target rate is already set and it // is also the golden frame. // === [frame_index == 0] === int frame_index = !!key_frame;
// Subtract the extra bits set aside for ARF frames from the Group Total if (use_arf) total_group_bits -= gf_arf_bits;
// Check the number of frames in each layer in case we have a // non standard group length. int max_arf_layer >max_layer_depth-1; for (int idx = frame_index; idx < gf_group_size; ++idx) { if ((gf_group->update_type[idx] == ARF_UPDATE) ||
(gf_group->update_type[idx] == INTNL_ARF_UPDATE)) {
layer_frames[gf_group->layer_depth[idx]]++;
}
}
// Allocate extra bits to each ARF layer int i; int layer_extra_bits[MAX_ARF_LAYERS + 1] = { 0 };
assertmax_arf_layer< MAX_ARF_LAYERS); for (i = 1; i <= max_arf_layer; ++i) { double fraction = (i == max_arf_layer) ? 1.0 : layer_fraction[i];
layer_extra_bits[i] =
(int)((gf_arf_bits * fraction) / AOMMAX(1, layer_frames[i]));
gf_arf_bits -= (int)(gf_arf_bits * fraction);
}
// Now combine ARF layer and baseline bits to give total bits for each frame. int arf_extra_bits; for (int idx = frame_index; idx < gf_group_size; ++idx) { switch (gf_group->update_type[idx]) { case ARF_UPDATE: case INTNL_ARF_UPDATE:
arf_extra_bits = layer_extra_bits[gf_group->layer_depth[idx]];
gf_group->bit_allocation[idx] =
(base_frame_bits > INT_MAX - arf_extra_bits)
? INT_MAX
: (base_frame_bits + arf_extra_bits); break; case INTNL_OVERLAY_UPDATE: case OVERLAY_UPDATE: gf_group->bit_allocation[idx] = 0; break; default: gf_group->bit_allocation[idx] = base_frame_bits; break;
}
}
// Set the frame following the current GOP to 0 bit allocation. For ARF // groups, this next frame will be overlay frame, which is the first frame // in the next GOP. For GF group, next GOP will overwrite the rate allocation. // Setting this frame to use 0 bit (of out the current GOP budget) will // simplify logics in reference frame management. if (gf_group_size < MAX_STATIC_GF_GROUP_LENGTH)
gf_group->bit_allocation[gf_group_size] = 0;
}
// Returns true if KF group and GF group both are almost completely static. staticinlineint is_almost_static(double gf_zero_motion, int kf_zero_motion, int is_lap_enabled) { if (is_lap_enabled) { /* *whenLAPenabledkf_zero_motionisnotreliable,sousestrict *constraintongf_zero_motion.
*/ return (gf_zero_motion >= 0.999);
} else { return (gf_zero_motion >= 0.995) &&
(kf_zero_motion >= STATIC_KF_GROUP_THRESH);
}
}
#define ARF_ABS_ZOOM_THRESH 4.4 staticinlineint detect_gf_cut(AV1_COMP *cpi, int frame_index, int cur_start, int flash_detected, int active_max_gf_interval, int active_min_gf_interval,
GF_GROUP_STATS *gf_stats) {
RATE_CONTROL *const rc = &cpi->rc;
TWO_PASS *const twopass = &cpi->ppi->twopass;
AV1_COMMON *const cm = &cpi->common; // Motion breakout threshold for loop below depends on image size. constdouble mv_ratio_accumulator_thresh = (cm->height + cm->width) / 4.0;
if (!flash_detected) { // Break clause to detect very still sections after motion. For example, // a static image after a fade or other transition.
// TODO(angiebird): This is a temporary change, we will avoid using // twopass_frame.stats_in in the follow-up CL int index = (int)(cpi->twopass_frame.stats_in -
twopass->stats_buf_ctx->stats_in_start); if (detect_transition_to_still(&twopass->firstpass_info, index,
rc->min_gf_interval, frame_index - cur_start, 5, gf_stats->loop_decay_rate,
gf_stats->last_loop_decay_rate)) { return1;
}
}
// Some conditions to breakout after min interval. if (frame_index - cur_start >= active_min_gf_interval && // If possible don't break very close to a kf
(rc->frames_to_key - frame_index >= rc->min_gf_interval) &&
((frame_index - cur_start) & 0x01) && !flash_detected &&
(gf_stats->mv_ratio_accumulator > mv_ratio_accumulator_thresh ||
gf_stats->abs_mv_in_out_accumulator > ARF_ABS_ZOOM_THRESH)) { return1;
}
// If almost totally static, we will not use the the max GF length later, // so we can continue for more frames. if ((frame_index - cur_start) >= active_max_gf_interval + 1 &&
((cpi->oxcf.mode != REALTIME) ||
!is_almost_static(gf_stats->zero_motion_accumulator,
twopass->kf_zeromotion_pct, cpi->ppi->lap_enabled))) { return1;
} return0;
}
if (gop_length_decision_method == 2) { // GF group length is decided based on GF boost and tpl stats of ARFs from // base layer, (base+1) layer.
shorten_gf_interval =
(p_rc->gfu_boost <
p_rc->num_stats_used_for_gfu_boost * GF_MIN_BOOST * 1.4) &&
!av1_tpl_setup_stats(cpi, 3, frame_params);
} else { int do_complete_tpl = 1;
GF_GROUP *const gf_group = &cpi->ppi->gf_group; int is_temporal_filter_enabled =
(rc->frames_since_key > 0 && gf_group->arf_index > -1);
if (gop_length_decision_method == 1) { // Check if tpl stats of ARFs from base layer, (base+1) layer, // (base+2) layer can decide the GF group length. int gop_length_eval = av1_tpl_setup_stats(cpi, 2, frame_params);
if (do_complete_tpl) { // Decide GF group length based on complete tpl stats.
shorten_gf_interval = !av1_tpl_setup_stats(cpi, 1, frame_params); // Tpl stats is reused when the ARF is temporally filtered and GF // interval is not shortened. if (is_temporal_filter_enabled && !shorten_gf_interval) {
cpi->skip_tpl_setup_stats = 1; #if CONFIG_BITRATE_ACCURACY && !CONFIG_THREE_PASS
assert(cpi->gf_frame_index == 0);
av1_vbr_rc_update_q_index_list(&cpi->vbr_rc_info, &cpi->ppi->tpl_data,
gf_group,
cpi->common.seq_params->bit_depth); #endif// CONFIG_BITRATE_ACCURACY
}
}
} return shorten_gf_interval;
}
#define MIN_SHRINK_LEN 6// the minimum length of gf if we are shrinking #define SMOOTH_FILT_LEN 7 #define HALF_FILT_LEN (SMOOTH_FILT_LEN / 2) #define WINDOW_SIZE 7 #define HALF_WIN (WINDOW_SIZE / 2)
// Smooth filter intra_error and coded_error in firstpass stats. // If stats[i].is_flash==1, the ith element should not be used in the filtering. staticvoid smooth_filter_stats(const FIRSTPASS_STATS *stats, int start_idx, int last_idx, double *filt_intra_err, double *filt_coded_err) { // A 7-tap gaussian smooth filter staticconstdouble smooth_filt[SMOOTH_FILT_LEN] = { 0.006, 0.061, 0.242, 0.383, 0.242, 0.061, 0.006 }; int i, j; for (i = start_idx; i <= last_idx; i++) { double total_wt = 0; for (j = -HALF_FILT_LEN; j <= HALF_FILT_LEN; j++) { int idx = clamp(i + j, start_idx, last_idx); if (stats[idx].is_flash) continue;
filt_intra_err[i] +=
smooth_filt[j + HALF_FILT_LEN] * stats[idx].intra_error;
total_wt += smooth_filt[j + HALF_FILT_LEN];
} if (total_wt > 0.01) {
filt_intra_err[i] /= total_wt;
} else {
filt_intra_err[i] = stats[i].intra_error;
}
} for (i = start_idx; i <= last_idx; i++) { double total_wt = 0; for (j = -HALF_FILT_LEN; j <= HALF_FILT_LEN; j++) { int idx = clamp(i + j, start_idx, last_idx); // Coded error involves idx and idx - 1. if (stats[idx].is_flash || (idx > 0 && stats[idx - 1].is_flash)) continue;
// Calculate gradient staticvoid get_gradient(constdouble *values, int start, int last, double *grad) { if (start == last) {
grad[start] = 0; return;
} for (int i = start; i <= last; i++) { int prev = AOMMAX(i - 1, start); int next = AOMMIN(i + 1, last);
grad[i] = (values[next] - values[prev]) / (next - prev);
}
}
staticint find_next_scenecut(const FIRSTPASS_STATS *const stats_start, int first, int last) { // Identify unstable areas caused by scenecuts. // Find the max and 2nd max coded error, and the average of the rest frames. // If there is only one frame that yields a huge coded error, it is likely a // scenecut. double this_ratio, max_prev_ratio, max_next_ratio, max_prev_coded,
max_next_coded;
if (last - first == 0) return -1;
for (int i = first; i <= last; i++) { if (stats_start[i].is_flash || (i > 0 && stats_start[i - 1].is_flash)) continue; double temp_intra = AOMMAX(stats_start[i].intra_error, 0.01);
this_ratio = stats_start[i].coded_error / temp_intra; // find the avg ratio in the preceding neighborhood
max_prev_ratio = 0;
max_prev_coded = 0; for (int j = AOMMAX(first, i - HALF_WIN); j < i; j++) { if (stats_start[j].is_flash || (j > 0 && stats_start[j - 1].is_flash)) continue;
temp_intra = AOMMAX(stats_start[j].intra_error, 0.01); double temp_ratio = stats_start[j].coded_error / temp_intra; if (temp_ratio > max_prev_ratio) {
max_prev_ratio = temp_ratio;
} if (stats_start[j].coded_error > max_prev_coded) {
max_prev_coded = stats_start[j].coded_error;
}
} // find the avg ratio in the following neighborhood
max_next_ratio = 0;
max_next_coded = 0; for (int j = i + 1; j <= AOMMIN(i + HALF_WIN, last); j++) { if (stats_start[i].is_flash || (i > 0 && stats_start[i - 1].is_flash)) continue;
temp_intra = AOMMAX(stats_start[j].intra_error, 0.01); double temp_ratio = stats_start[j].coded_error / temp_intra; if (temp_ratio > max_next_ratio) {
max_next_ratio = temp_ratio;
} if (stats_start[j].coded_error > max_next_coded) {
max_next_coded = stats_start[j].coded_error;
}
}
if (max_prev_ratio < 0.001 && max_next_ratio < 0.001) { // the ratios are very small, only check a small fixed threshold if (this_ratio < 0.02) continue;
} else { // check if this frame has a larger ratio than the neighborhood double max_sr = stats_start[i].sr_coded_error; if (i < last) max_sr = AOMMAX(max_sr, stats_start[i + 1].sr_coded_error); double max_sr_fr_ratio =
max_sr / AOMMAX(stats_start[i].coded_error, 0.01);
// Remove the region with index next_region. // parameter merge: 0: merge with previous; 1: merge with next; 2: // merge with both, take type from previous if possible // After removing, next_region will be the index of the next region. staticvoid remove_region(int merge, REGIONS *regions, int *num_regions, int *next_region) { int k = *next_region;
assert(k < *num_regions); if (*num_regions == 1) {
*num_regions = 0; return;
} if (k == 0) {
merge = 1;
} elseif (k == *num_regions - 1) {
merge = 0;
} int num_merge = (merge == 2) ? 2 : 1; switch (merge) { case0:
regions[k - 1].last = regions[k].last;
*next_region = k; break; case1:
regions[k + 1].start = regions[k].start;
*next_region = k + 1; break; case2:
regions[k - 1].last = regions[k + 1].last;
*next_region = k; break; default: assert(0);
}
*num_regions -= num_merge; for (k = *next_region - (merge == 1); k < *num_regions; k++) {
regions[k] = regions[k + num_merge];
}
}
// Insert a region in the cur_region_idx. The start and last should both be in // the current region. After insertion, the cur_region_idx will point to the // last region that was splitted from the original region. staticvoid insert_region(int start, int last, REGION_TYPES type,
REGIONS *regions, int *num_regions, int *cur_region_idx) { int k = *cur_region_idx;
REGION_TYPES this_region_type = regions[k].type; int this_region_last = regions[k].last; int num_add = (start != regions[k].start) + (last != regions[k].last); // move the following regions further to the back for (int r = *num_regions - 1; r > k; r--) {
regions[r + num_add] = regions[r];
}
*num_regions += num_add; if (start > regions[k].start) {
regions[k].last = start - 1;
k++;
regions[k].start = start;
}
regions[k].type = type; if (last < this_region_last) {
regions[k].last = last;
k++;
regions[k].start = last + 1;
regions[k].last = this_region_last;
regions[k].type = this_region_type;
} else {
regions[k].last = this_region_last;
}
*cur_region_idx = k;
}
// Get the average of stats inside a region. staticvoid analyze_region(const FIRSTPASS_STATS *stats, int k,
REGIONS *regions) { int i;
regions[k].avg_cor_coeff = 0;
regions[k].avg_sr_fr_ratio = 0;
regions[k].avg_intra_err = 0;
regions[k].avg_coded_err = 0;
int check_first_sr = (k != 0);
for (i = regions[k].start; i <= regions[k].last; i++) { if (i > regions[k].start || check_first_sr) { double num_frames =
(double)(regions[k].last - regions[k].start + check_first_sr); double max_coded_error =
AOMMAX(stats[i].coded_error, stats[i - 1].coded_error); double this_ratio =
stats[i].sr_coded_error / AOMMAX(max_coded_error, 0.001);
regions[k].avg_sr_fr_ratio += this_ratio / num_frames;
}
// Calculate the regions stats of every region. staticvoid get_region_stats(const FIRSTPASS_STATS *stats, REGIONS *regions, int num_regions) { for (int k = 0; k < num_regions; k++) {
analyze_region(stats, k, regions);
}
}
// Find tentative stable regions staticint find_stable_regions(const FIRSTPASS_STATS *stats, constdouble *grad_coded, int this_start, int this_last, REGIONS *regions) { int i, j, k = 0;
regions[k].start = this_start; for (i = this_start; i <= this_last; i++) { // Check mean and variance of stats in a window double mean_intra = 0.001, var_intra = 0.001; double mean_coded = 0.001, var_coded = 0.001; int count = 0; for (j = -HALF_WIN; j <= HALF_WIN; j++) { int idx = clamp(i + j, this_start, this_last); if (stats[idx].is_flash || (idx > 0 && stats[idx - 1].is_flash)) continue;
mean_intra += stats[idx].intra_error;
var_intra += stats[idx].intra_error * stats[idx].intra_error;
mean_coded += stats[idx].coded_error;
var_coded += stats[idx].coded_error * stats[idx].coded_error;
count++;
}
/ java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 40
if (i == regions[k].start) {
// first frame in the region
regions[k].type = cur_type;
} else if (cur_type != regions[k].type) {
// Append a new region
regions[k].last = i - 1;
regionsk 1]start
regions[k + 1].type = cur_type;
k++;
}
}
regions[k].last , skip done all framesthat
/whererc->high_source_sad=0 no-changes)
}
/ regionsshouldbe java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 53
static void cleanup_regions(REGIONS *regions, int *num_regions) {
int k = 0;
while (k < *num_regions) {
if ( 0 & k ].=regionsk].type &
regions[k].type != SCENECUT_REGION) ||
regions[k].last < regions[k].start) {
remove_region(0, regions, num_regions, &k);
} else {
k++;
}
/ Enabledisable partition merging.
}
// Remove regions that are of type and shorter than length.
// Merge it with its neighboring regions.
static void Avoid the partitioninga 16 block variancebased
) makinguseof and maximumsub- .
intk 0java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
hile (k < num_regions& (num_regions)>1){
if ((regions[k].last - regions[k].start + 1 < length &&
regions[k]./8.%for java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 76
/merge currentwith the java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 64
remove_region(2, regions, num_regions, &k);
} else {
k++;
}
}
cleanup_regions(regions, num_regions);
}
static void adjust_unstable_region_bounds(const FIRSTPASS_STATS *stats,
REGIONS *regions, int *num_regions) {
int i, j, k;
// Remove regions that are too short. Likely noise.
remove_short_regions/ contentmodelthus number offrames through cdef
remove_short_regions(regions, num_regions, HIGH_VAR_REGION, HALF_WIN);
get_region_stats(stats, regions, *num_regions);
// Adjust region boundaries. The thresholds are empirically obtained, but
// overall the performance is not very sensitive to small changes to them.
for (k = 0; k < *num_regions; k++) {
if (regions[k].type == STABLE_REGION) continue;
if (k > 0) {
// Adjust previous boundary.
//First the / errorinthe previous
// neighborhood.
double avg_intra_err = 0;
const int starti = AOMMAX(regions[k - 1].last - WINDOW_SIZE + 1,
regions[k - 1].start + 1);
const int lasti = regions[k - 1].last;
int counti = 0;
for (i = starti; i <= lasti; i++) {
avg_intra_err += stats[i].intra_error;
+java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}
if (counti > 0) {
avg_intra_err = AOMMAX(avg_intra_err / (double)counti, 0.001);
=0,count_grad= ;
for (j = lasti + 1; j <= regions[k].last; j++) {
const int intra_close =
(java.lang.StringIndexOutOfBoundsException: Range [40, 24) out of bounds for length 79
const int coded_small = stats[j].coded_error / avg_intra_err < 0.1;
const int coeff_close = stats[j].cor_coeff > 0.995;
if (!coeff_close || !coded_small) count_coded--;
ifintra_close && count_coded >= 0 && count_grad >= 0) {
// this frame probably belongs to the previous stable region
regions[k - 1].last = j;
regions[k].start = j + 1;
} else {
break;
}
}
}
} // if k > 0
if (k < *num_regions - 1) {
// Adjust next boundary.
// First find the average intra/coded error in the next neighborhood.
double avg_intra_err = 0;
const int starti = regions[k + 1].start;
const int lasti = AOMMIN(regions[k + 1].last - 1,
regions[k + 1].start + WINDOW_SIZE - 1);
int counti = 0;
for (i = starti; i <= lasti; i++) {
avg_intra_err += stats[i].intra_error;
prune_intr;
}
if (counti > 0) {
avg_intra_err = AOMMAX(avg_intra_err / (double)counti, 0.001);
// At the boundary, coded error is large, Thi java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 76
int count_coded = 1, count_grad = 1;
for (j = starti - 1; j >= regions[k].start; j--) {
const int intra_close =
fabs(stats[j].intra_error - avg_intra_err) / avg_intra_err < 0.1;
const int coded_small =
stats[j + 1].coded_error / avg_intra_err < 0.1;
const int coeff_close = stats[j].cor_coeff > 0.995;
if (coeff_close || !coded_small) count_coded--;
if (intra_close && count_coded >= 0 && count_grad >= 0) {
// this frame probably belongs to the next stable region
regions[k + 1].start = j;
regions[k].last = j - 1;
} else {
break;
}
}
}
} // if k < *num_regions - 1
all regions
// If a stable regions has higher error / av1_find_best_sub_pixel_tree_pruned_more when
// or if the stable region has a lower average correlation,
// then it should be merged with them
k = 0;
while (k < *num_regions && (*num_regions) > 1) {
regions[]type = &&
java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 69
((k > 0 && // previous regions
(regions[k].avg_coded_err > regions[k - 1].avg_coded_err * 1.01 ||
regions//case.
bool check_globalmv_on_single_ref
(regions[k].avg_coded_err > regions[k + 1].avg_coded_err * 1.01 ||
regionsk]java.lang.StringIndexOutOfBoundsException: Range [38, 35) out of bounds for length 80
// merge current region with the previous and next regions
remove_region(2, regions, num_regions, &k);
analyze_region(stats, k - 1, regions);
} else
(java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 76
((k > 0 && // previous regions
(regions[k].avg_coded_err <
regions[k - 1 skip_encoding_non_reference_slide_change
regions[k].avg_cor_coeff >
regions[k - 1].avg_cor_coeff * 1.001)) &&
(k < *num_regions - 1 && // next region
(regions[k].avg_coded_err <
regions[k + 1].avg_coded_err * 0.99 ||
>
regions[k + 1].avg_cor_coeff * 1.001)))) {
// merge current region with the previous and next regions
remove_region(2, regions, num_regions, &k);
analyze_region(stats, k - 1, regions);
} else {
k++;
}
}
// Identify blending regions.
static void find_blending_regions(const FIRSTPASS_STATS *stats,
REGIONS *regions, int *num_regions) {
int i, k = 0;
// Blending regions will have large content change, therefore will have a
// large consistent change in intra error.
int count_stable = 0;
while (k < *num_regions) {
if (regions[k].type == STABLE_REGION) {
k++;
count_stable++;
continue;
}
int 0
int start = *
for (i = regions[k].start; i <= regions[k].java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 28
// First mark the regions that has consistent large change of intra error.
if (k == 0 && i == regions[k].start) continue;
if (stats[i].is_flash || (i > 0 && stats[i - 1].is_flash)) continue;
double grad = stats[i].intra_error - stats[i - 1].intra_error;
int large_change = fabs(grad) / AOMMAX(stats[i].intra_error, 0.01) > 0.05;
int this_dir = 0;
if (large_change) {
this_dir = (grad > 0) ? 1 : -1;
}
// the current trend continues
if (dir == this_dir) continue;
if (dir != 0) {
// Mark the end of a new large change group and add it
last = i - 1;
insert_region(start, last, BLENDING_REGION, regions, num_regions, &k);
}
dir = this_dir;
if (k == 0 && i == regions[k].start + 1) {
start = i - 1;
} else {
start = i;
}
}
if (dir != 0) {
last = regions[k].last;
insert_region(start, last, BLENDING_REGION, regions, num_regions, &k);
}
k++;
}
// If the blending region has very low correlation
// since we probably cannot benefit from it anyways.
get_region_stats(stats, regions, *java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
for (k = 0; k < *num_regions; k++) {
if (regions[k].type != BLENDING_REGION) continue;
*RDcalculation speed features:
count_stable == 0)
regions[k].type = HIGH_VAR_REGION;
}
get_region_stats(stats, regions, *num_regions);
// It is possible for blending to result /*
// decrease then increase). Therefore we need to find the dip and combine the
// two regions.
k = 1;
while (k *Inloopfilter java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 35
if (k < *num_regions - 1 && regions[k].type == HIGH_VAR_REGION) {
// Check if this short high variance regions is actually in the middle of
/ blending .
if (regions[k - 1].type == BLENDING_REGION &&
regions[k + 1].type == /!
regions[k].last - regions[k].start < 3) {
int prev_dir = (stats[regions[k - *Real-time modespeed features
stats[regions[k - 1].last - 1].intra_error) > 0
? 1
: -1;
int next_dir = (stats[regions[k + 1].last].intra_error -
stats[regions[k + 1].last - 1].intra_error) > 0
? 1
: -1;
if (prev_dir < 0 && next_dir > 0) {
// This is possibly a mid region of blending. Check the ratios
A(k 1.,
regions[k + 1].avg_sr_fr_ratio) * 0.95;
([. ratio_thres java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
regionsjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
remove_region(2, regions, num_regions, &k);
analyze_region(stats, k - 1, regions);
continue;
}
}
}
}
// java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 2
if (regions[k - 1].type == BLENDING_REGION &&
regions[k].type == BLENDING_REGION) {
int prev_dir = (stats[regions[k - 1].last].intra_error -
stats[regions[k - 1].last - 1].intra_error) > 0
? 1
: -1;
int next_dir = (stats[regions[k].last].intra_error -
stats[regions[k].last - 1].intra_error) > 0
? 1
\ingroupspeed_features
/ifboth short, no need to check
int total_length = regions[k].last - regions[k - 1].start + 1;
if (total_length < 4) {
regions[k - 1].type = HIGH_VAR_REGION;
+java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 54
}
int to_merge = 0;
if (prev_dir < 0 && next_dir > 0) {
// In this case we check the last frame in the previous region.
double prev_length =
(double)(regions[k - 1].last - regions[k - 1].start + 1);
double last_ratio, ratio_thres;
if (prev_length < 2.01) {
// if the previous region is very short
double max_coded_error =
AOMMAX(stats[regions[k - 1].last].coded_error,
stats[regions[k - 1].last - 1].coded_error);
last_ratio = stats[regions[k - 1].last].sr_coded_error /
AOMMAX(max_coded_error, 0.001);
ratio_thres = regions[k].avg_sr_fr_ratio * 0.95;
} else {
double max_coded_error =
AOMMAX(stats[regions[k - 1].last].coded_error,
stats[regions[k - 1].last - 1].coded_error);
last_ratio = stats[regions[k - 1].last].sr_coded_error /
AOMMAX(max_coded_error, 0.001);
double prev_ratio =
(regions[k - 1].avg_sr_fr_ratio * prev_length - last_ratio) /
(prev_length - 1.0);
ratio_thres = AOMMIN(prev_ratio, regions[k].avg_sr_fr_ratio) * 0.95;
}
if (last_ratio > ratio_thres) {
to_merge = 1;
}
}
if (to_merge) {
remove_region(0, regions, num_regions, &k);
analyze_region(stats, k - 1, regions);
continue;
} else {
// These are possibly two separate blending regions. Mark the boundary
// frame as HIGH_VAR_REGION to separate the two.
int prev_k = k - 1;
insert_region(regions[prev_k].last, regions[prev_k].last,
HIGH_VAR_REGION, regions, num_regions, &prev_k);
analyze_region(stats, prev_k, regions);
k = prev_k + 1;
analyze_region(stats, k, regions);
}
}
k++;
}
cleanup_regions(regions, num_regions);
}
// Clean up decision for blendings. Remove blending regions that are too short.
// Also if a very short high var region is between a blending and a stable
// region, just merge it with one of them.
static void cleanup_blendings(REGIONS *regions, int *num_regions) {
int k = 0;
while (k < (*num_regions) && (*num_regions) > 1) {
int is_short_blending = regions[k].type == BLENDING_REGION &&
regions[k].last - regions[k].start + 1 < 5;
int is_short_hv = regions[k].type == HIGH_VAR_REGION &&
regions[k].last - regions[k].start + 1 < 5;
int has_stable_neighbor =
((k > 0 && regions[k - 1].type == STABLE_REGION) ||
(k < *num_regions - 1 && regions[k + 1].type == STABLE_REGION));
int has_blend_neighbor =
((k > 0 && regions[k - 1].type == BLENDING_REGION) ||
(k < *num_regions - 1 && regions[k + 1].type == BLENDING_REGION));
int total_neighbors = (k > 0) + (k < *num_regions - 1);
if (is_short_blending ||
(is_short_hv &&
has_stable_neighbor + has_blend_neighbor >= total_neighbors)) {
// Remove this region.Try to determine whether to combine it with the
// previous or next region.
int merge;
double prev_diff =
(k > 0)
? fabs(regions[k].avg_cor_coeff - regions[k - 1].avg_cor_coeff)
: 1;
double next_diff =
(k < *num_regions - 1)
? fabs(regions[k].avg_cor_coeff - regions[k + 1].avg_cor_coeff)
: 1;
// merge == 0 means to merge with previous, 1 means to merge with next
merge = prev_diff > next_diff;
remove_region(merge, regions, num_regions, &k);
} else {
k++;
}
}
cleanup_regions(regions, num_regions);
}
// Identify stable and unstable regions from first pass stats.
// stats_start points to the first frame to analyze.
// |offset| is the offset from the current frame to the frame stats_start is
// pointing to.
// Returns 0 on success, -1 on memory allocation failure.
static int identify_regions(const FIRSTPASS_STATS *const stats_start,
int total_frames, int offset, REGIONS *regions,
int *total_regions) {
int k;
if (total_frames <= 1) return 0;
// find tentative stable regions and unstable regions
int num_regions = find_stable_regions(stats_start, grad_coded, this_start,
this_last, temp_regions);
// Try to identify blending regions in the unstable regions
find_blending_regions(stats_start, temp_regions, &num_regions);
cleanup_blendings(temp_regions, &num_regions);
// The flash points should all be considered high variance points
k = 0;
while (k < num_regions) {
if (temp_regions[k].type != STABLE_REGION) {
k++;
continue;
}
int start = temp_regions[k].start;
int last = temp_regions[k].last;
for (int i = start; i <= last; i++) {
if (stats_start[i].is_flash) {
insert_region(i, i, HIGH_VAR_REGION, temp_regions, &num_regions, &k);
}
}
k++;
}
cleanup_regions(temp_regions, &num_regions);
// copy the regions in the scenecut group
for (k = 0; k < num_regions; k++) {
if (temp_regions[k].last < temp_regions[k].start &&
k == num_regions - 1) {
num_regions--;
break;
}
regions[k + cur_region] = temp_regions[k];
}
cur_region += num_regions;
// add the scenecut region
if (next_scenecut > -1) {
// add the scenecut region, and find the next scenecut
regions[cur_region].type = SCENECUT_REGION;
regions[cur_region].start = next_scenecut;
regions[cur_region].last = next_scenecut;
cur_region++;
this_start = next_scenecut + 1;
}
} while (next_scenecut >= 0);
for (k = 0; k < *total_regions; k++) {
// If scenecuts are very minor, mark them as high variance.
if (regions[k].type != SCENECUT_REGION ||
regions[k].avg_cor_coeff *
(1 - stats_start[regions[k].start].noise_var /
regions[k].avg_intra_err) < 0.8) {
continue;
}
regions[k].type = HIGH_VAR_REGION;
}
cleanup_regions(regions, total_regions);
get_region_stats(stats_start, regions, *total_regions);
for (k = 0; k < *total_regions; k++) {
regions[k].start += offset;
regions[k].last += offset;
}
static int find_regions_index(const REGIONS *regions, int num_regions,
int frame_idx) {
for (int k = 0; k < num_regions; k++) {
if (regions[k].start <= frame_idx && regions[k].last >= frame_idx) {
return k;
}
}
return -1;
}
/*!\brief Determine the length of future GF groups.
*
* \ingroup gf_group_algo
* This function decides the gf group length of future frames in batch
*
* \param[in] cpi Top-level encoder structure
* \param[in] max_gop_length Maximum length of the GF group
* \param[in] max_intervals Maximum number of intervals to decide
*
* \remark Nothing is returned. Instead, cpi->ppi->rc.gf_intervals is
* changed to store the decided GF group lengths.
*/
static void calculate_gf_length(AV1_COMP *cpi, int max_gop_length,
int max_intervals) {
RATE_CONTROL *const rc = &cpi->rc;
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
TWO_PASS *const twopass = &cpi->ppi->twopass;
FIRSTPASS_STATS next_frame;
const FIRSTPASS_STATS *const start_pos = cpi->twopass_frame.stats_in;
const FIRSTPASS_STATS *const stats = start_pos - (rc->frames_since_key == 0);
const int f_w = cpi->common.width;
const int f_h = cpi->common.height;
int i;
int flash_detected;
av1_zero(next_frame);
if (has_no_stats_stage(cpi)) {
for (i = 0; i < MAX_NUM_GF_INTERVALS; i++) {
p_rc->gf_intervals[i] = AOMMIN(rc->max_gf_interval, max_gop_length);
}
p_rc->cur_gf_index = 0;
rc->intervals_till_gf_calculate_due = MAX_NUM_GF_INTERVALS;
return;
}
// TODO(urvang): Try logic to vary min and max interval based on q.
const int active_min_gf_interval = rc->min_gf_interval;
const int active_max_gf_interval =
AOMMIN(rc->max_gf_interval, max_gop_length);
const int min_shrink_int = AOMMAX(MIN_SHRINK_LEN, active_min_gf_interval);
i = (rc->frames_since_key == 0);
max_intervals = cpi->ppi->lap_enabled ? 1 : max_intervals;
int count_cuts = 1;
// If cpi->gf_state.arf_gf_boost_lst is 0, we are starting with a KF or GF.
int cur_start = -1 + !cpi->ppi->gf_state.arf_gf_boost_lst, cur_last;
int cut_pos[MAX_NUM_GF_INTERVALS + 1] = { -1 };
int cut_here;
GF_GROUP_STATS gf_stats;
init_gf_stats(&gf_stats);
while (count_cuts < max_intervals + 1) {
// reaches next key frame, break here
if (i >= rc->frames_to_key) {
cut_here = 2;
} else if (i - cur_start >= rc->static_scene_max_gf_interval) {
// reached maximum len, but nothing special yet (almost static)
// let's look at the next interval
cut_here = 1;
} else if (EOF == input_stats(twopass, &cpi->twopass_frame, &next_frame)) {
// reaches last frame, break
cut_here = 2;
} else {
// Test for the case where there is a brief flash but the prediction
// quality back to an earlier frame is then restored.
flash_detected = detect_flash(twopass, &cpi->twopass_frame, 0);
// TODO(bohanli): remove redundant accumulations here, or unify
// this and the ones in define_gf_group
accumulate_next_frame_stats(&next_frame, flash_detected,
rc->frames_since_key, i, &gf_stats, f_w, f_h);
cut_here = detect_gf_cut(cpi, i, cur_start, flash_detected,
active_max_gf_interval, active_min_gf_interval,
&gf_stats);
}
if (cut_here) {
cur_last = i - 1; // the current last frame in the gf group
int ori_last = cur_last;
// The region frame idx does not start from the same frame as cur_start
// and cur_last. Need to offset them.
int offset = rc->frames_since_key - p_rc->regions_offset;
REGIONS *regions = p_rc->regions;
int num_regions = p_rc->num_regions;
int scenecut_idx = -1;
// only try shrinking if interval smaller than active_max_gf_interval
if (cur_last - cur_start <= active_max_gf_interval &&
cur_last > cur_start) {
// find the region indices of where the first and last frame belong.
int k_start =
find_regions_index(regions, num_regions, cur_start + offset);
int k_last =
find_regions_index(regions, num_regions, cur_last + offset);
if (cur_start + offset == 0) k_start = 0;
// See if we have a scenecut in between
for (int r = k_start + 1; r <= k_last; r++) {
if (regions[r].type == SCENECUT_REGION &&
regions[r].last - offset - cur_start > active_min_gf_interval) {
scenecut_idx = r;
break;
}
}
// if the found scenecut is very close to the end, ignore it.
if (regions[num_regions - 1].last - regions[scenecut_idx].last < 4) {
scenecut_idx = -1;
}
if (scenecut_idx != -1) {
// If we have a scenecut, then stop at it.
// TODO(bohanli): add logic here to stop before the scenecut and for
// the next gop start from the scenecut with GF
int is_minor_sc =
(regions[scenecut_idx].avg_cor_coeff *
(1 - stats[regions[scenecut_idx].start - offset].noise_var /
regions[scenecut_idx].avg_intra_err) > 0.6);
cur_last = regions[scenecut_idx].last - offset - !is_minor_sc;
} else {
int is_last_analysed = (k_last == num_regions - 1) &&
(cur_last + offset == regions[k_last].last);
int not_enough_regions =
k_last - k_start <= 1 + (regions[k_start].type == SCENECUT_REGION);
// if we are very close to the end, then do not shrink since it may
// introduce intervals that are too short
if (!(is_last_analysed && not_enough_regions)) {
const double arf_length_factor = 0.1;
double best_score = 0;
int best_j = -1;
const int first_frame = regions[0].start - offset;
const int last_frame = regions[num_regions - 1].last - offset;
// score of how much the arf helps the whole GOP
double base_score = 0.0;
int count_base = 0;
bool static_frames = false;
int met_blending = 0; // Whether we have met blending areas before
int last_blending = 0; // Whether the previous frame if blending
for (int j = cur_start + min_shrink_int; j <= cur_last; j++) {
if (stats + j >= twopass->stats_buf_ctx->stats_in_end) break;
base_score = (base_score + 1.0) * stats[j].cor_coeff;
int this_reg =
find_regions_index(regions, num_regions, j + offset);
if (this_reg < 0) continue;
// A GOP should include at most 1 blending region.
if (regions[this_reg].type == BLENDING_REGION) {
last_blending = 1;
if (met_blending) {
break;
} else {
base_score = 0;
continue;
}
} else {
if (last_blending) met_blending = 1;
last_blending = 0;
}
// Add the factor of how good the neighborhood is for this
// candidate arf.
double this_score = arf_length_factor * base_score;
double temp_accu_coeff = 1.0;
// following frames
int count_f = 0;
for (int n = j + 1; n <= j + 3 && n <= last_frame; n++) {
if (stats + n >= twopass->stats_buf_ctx->stats_in_end) break;
temp_accu_coeff *= stats[n].cor_coeff;
this_score +=
temp_accu_coeff *
sqrt(AOMMAX(0.5, 1 - stats[n].noise_var /
AOMMAX(stats[n].intra_error, 0.001)));
count_f++;
}
// preceding frames
temp_accu_coeff = 1.0;
for (int n = j; n > j - 3 * 2 + count_f && n > first_frame; n--) {
if (stats + n < twopass->stats_buf_ctx->stats_in_start) break;
temp_accu_coeff *= stats[n].cor_coeff;
this_score +=
temp_accu_coeff *
sqrt(AOMMAX(0.5, 1 - stats[n].noise_var /
AOMMAX(stats[n].intra_error, 0.001)));
}
// Slightly relax the condition for videos starting with frozen
// frames.
if (this_score + (static_frames ? 0.5 : 0) > best_score) {
best_score = this_score;
best_j = j;
}
}
// For blending areas, move one more frame in case we missed the
// first blending frame.
int best_reg =
find_regions_index(regions, num_regions, best_j + offset);
if (best_reg < num_regions - 1 && best_reg > 0) {
if (regions[best_reg - 1].type == BLENDING_REGION &&
regions[best_reg + 1].type == BLENDING_REGION) {
if (best_j + offset == regions[best_reg].start &&
best_j + offset < regions[best_reg].last) {
best_j += 1;
} else if (best_j + offset == regions[best_reg].last &&
best_j + offset > regions[best_reg].start) {
best_j we java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 71
}
}
}
if (cur_last - best_j < 2) best_j = cur_last;
if (best_j > 0 && best_score > 0.1) cur_last = best_j;
// if cannot find anything, just cut at the original place.
}
}
}
cut_pos[count_cuts] = cur_last;
count_cuts++;
// reset pointers to the shrunken location
cpi->twopass_frame.stats_in = start_pos + cur_last;
cur_start = cur_last;
int cur_region_idx =
find_regions_index(regions, num_regions, cur_start + 1 + offset);
if (cur_region_idx >= 0)
if (regions[cur_region_idx].type == SCENECUT_REGION) cur_start++;
// save intervals
rc->intervals_till_gf_calculate_due = count_cuts - 1;
for (int n = 1; n < count_cuts; n++) {
p_rc->gf_intervals[n - 1] = cut_pos[n] - cut_pos[n - 1];
}
p_rc->cur_gf_index = 0;
cpi->twopass_frame.stats_in = start_pos;
}
static void correct_frames_to_key(AV1_COMP *cpi) {
int lookahead_size =
av1_lookahead_depth(cpi->ppi->lookahead, cpi->compressor_stage);
if (lookahead_size <
av1_lookahead_pop_sz(cpi->ppi->lookahead, cpi->compressor_stage)) {
assert(
IMPLIES(cpi->oxcf.pass != AOM_RC_ONE_PASS && cpi->ppi->frames_left > 0,
lookahead_size == cpi->ppi->frames_left));
cpi->rc.frames_to_key = AOMMIN(cpi->rc.frames_to_key, lookahead_size);
} else if (cpi->ppi->frames_left > 0) {
// Correct frames to key based on limit
cpi->rc.frames_to_key =
AOMMIN(cpi->rc.frames_to_key, cpi->ppi->frames_left);
}
}
/*!\brief Define a GF group in one pass mode when no look ahead stats are
* available.
*
* \ingroup gf_group_algo
* This function defines the structure of a GF group, along with various
* parameters regarding bit-allocation and quality setup in the special
* case of one pass encoding where no lookahead stats are avialable.
*
* \param[in] cpi Top-level encoder structure
* \param[in] is_final_pass Whether it is the second call to
* define_gf_group().
*
* \remark Nothing is returned. Instead, cpi->ppi->gf_group is changed.
*/
static void define_gf_group_pass0(AV1_COMP *cpi, const int is_final_pass) {
RATE_CONTROL *const rc = &cpi->rc;
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
GF_GROUP *const gf_group = &cpi->ppi->gf_group;
const AV1EncoderConfig *const oxcf = &cpi->oxcf;
const GFConfig *const gf_cfg = &oxcf->gf_cfg;
int target;
// Default for pyr_height if inputs not set.
if (oxcf->gf_cfg.gf_max_pyr_height == 0 ||
oxcf->gf_cfg.gf_min_pyr_height == 0) {
gf_group->max_layer_depth_allowed = 1;
} else {
gf_group->max_layer_depth_allowed = oxcf->gf_cfg.gf_max_pyr_height;
}
// Rare case when the look-ahead is less than the target GOP length, can't
// generate ARF frame.
// Also disable ARF frame if the motion content (source_sad) is high in
// lookahead buffer.
const uint64_t thresh_sad = 8 * 64 * 64;
if (p_rc->baseline_gf_interval > gf_cfg->lag_in_frames ||
!is_altref_enabled(gf_cfg->lag_in_frames, gf_cfg->enable_auto_arf) ||
p_rc->baseline_gf_interval < rc->min_gf_interval ||
rc->frame_source_sad_lag[0] > thresh_sad) {
gf_group->max_layer_depth_allowed = 0;
}
// Set up the structure of this Group-Of-Pictures (same as GF_GROUP)
av1_gop_setup_structure(cpi, is_final_pass);
// Allocate bits to each of the frames in the GF group.
// TODO(sarahparker) Extend this to work with pyramid structure.
for (int cur_index = 0; cur_index < gf_group->size; ++cur_index) {
const FRAME_UPDATE_TYPE cur_update_type = gf_group->update_type[cur_index];
if (oxcf->rc_cfg.mode == AOM_CBR) {
if (cur_update_type == KF_UPDATE) {
target = av1_calc_iframe_target_size_one_pass_cbr(cpi);
} else {
target = av1_calc_pframe_target_size_one_pass_cbr(cpi, cur_update_type);
}
} else {
if (cur_update_type == KF_UPDATE) {
target = av1_calc_iframe_target_size_one_pass_vbr(cpi);
} else {
target = av1_calc_pframe_target_size_one_pass_vbr(cpi, cur_update_type);
}
}
gf_group->bit_allocation[cur_index] = target;
}
}
static void accumulate_gop_stats(AV1_COMP *cpi, int is_intra_only, int f_w,
int f_h, FIRSTPASS_STATS *next_frame,
const FIRSTPASS_STATS *start_pos,
GF_GROUP_STATS *gf_stats, int *idx) {
int i, flash_detected;
TWO_PASS *const twopass = &cpi->ppi->twopass;
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
RATE_CONTROL *const rc = &cpi->rc;
FRAME_INFO *frame_info = &cpi->frame_info;
const AV1EncoderConfig *const oxcf = &cpi->oxcf;
init_gf_stats(gf_stats);
av1_zero(*next_frame);
// If this is a key frame or the overlay from a previous arf then
// the error score / cost of this frame has already been accounted for.
i = is_intra_only;
// get the determined gf group length from p_rc->gf_intervals
while (i < p_rc->gf_intervals[p_rc->cur_gf_index]) {
// read in the next frame
if (EOF == input_stats(twopass, &cpi->twopass_frame, next_frame)) break;
// Accumulate error score of frames in this gf group.
double mod_frame_err =
calculate_modified_err(frame_info, twopass, oxcf, next_frame);
// accumulate stats for this frame
accumulate_this_frame_stats(next_frame, mod_frame_err, gf_stats);
++i;
}
i = is_intra_only;
input_stats(twopass, &cpi->twopass_frame, next_frame);
while (i < p_rc->gf_intervals[p_rc->cur_gf_index]) {
// read in the next frame
if (EOF == input_stats(twopass, &cpi->twopass_frame, next_frame)) break;
// Test for the case where there is a brief flash but the prediction
// quality back to an earlier frame is then restored.
flash_detected = detect_flash(twopass, &cpi->twopass_frame, 0);
// accumulate stats for next frame
accumulate_next_frame_stats(next_frame, flash_detected,
rc->frames_since_key, i, gf_stats, f_w, f_h);
++i;
}
i = p_rc->gf_intervals[p_rc->cur_gf_index];
average_gf_stats(i, gf_stats);
*idx = i;
}
static void update_gop_length(RATE_CONTROL *rc, PRIMARY_RATE_CONTROL *p_rc,
int idx, int is_final_pass) {
if (is_final_pass) {
rc->intervals_till_gf_calculate_due--;
p_rc->cur_gf_index++;
}
// Was the group length constrained by the requirement for a new KF?
p_rc->constrained_gf_group = (idx >= rc->frames_to_key) ? 1 : 0;
// #define FIXED_ARF_BITS
#ifdef FIXED_ARF_BITS
#define ARF_BITS_FRACTION 0.75
#endif
/*!\brief Distributes bits to frames in a group
*
*\ingroup rate_control
*
* This function decides on the allocation of bits between the different
* frames and types of frame in a GF/ARF group.
*
* \param[in] cpi Top - level encoder instance structure
* \param[in] rc Rate control data
* \param[in] gf_group GF/ARF group data structure
* \param[in] is_key_frame Indicates if the first frame in the group is
* also a key frame.
* \param[in] use_arf Are ARF frames enabled or is this a GF only
* uni-directional group.
* \param[in] gf_group_bits Bits available to be allocated.
*
* \remark No return but updates the rate control and group data structures
* to reflect the allocation of bits.
*/
void av1_gop_bit_allocation(const AV1_COMP *cpi, RATE_CONTROL *const rc,
GF_GROUP *gf_group, int is_key_frame, int use_arf,
int64_t gf_group_bits) {
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
// Calculate the extra bits to be used for boosted frame(s)
#ifdef FIXED_ARF_BITS
int gf_arf_bits = (int)(ARF_BITS_FRACTION * gf_group_bits);
#else
int gf_arf_bits = calculate_boost_bits(
p_rc->baseline_gf_interval - (rc->frames_since_key == 0), p_rc->gfu_boost,
gf_group_bits);
#endif
// Allocate bits to each of the frames in the GF group.
allocate_gf_group_bits(gf_group, p_rc, rc, gf_group_bits, gf_arf_bits,
is_key_frame, use_arf);
}
#undef ARF_BITS_FRACTION
#define MAX_GF_BOOST 5400
#define REDUCE_GF_LENGTH_THRESH 4
#define REDUCE_GF_LENGTH_TO_KEY_THRESH 9
#define REDUCE_GF_LENGTH_BY 1
static void set_gop_bits_boost(AV1_COMP *cpi, int i, int is_intra_only,
int is_final_pass, int use_alt_ref,
int alt_offset, const FIRSTPASS_STATS *start_pos,
GF_GROUP_STATS *gf_stats) {
// Should we use the alternate reference frame.
AV1_COMMON *const cm = &cpi->common;
RATE_CONTROL *const rc = &cpi->rc;
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
TWO_PASS *const twopass = &cpi->ppi->twopass;
GF_GROUP *gf_group = &cpi->ppi->gf_group;
FRAME_INFO *frame_info = &cpi->frame_info;
const AV1EncoderConfig *const oxcf = &cpi->oxcf;
const RateControlCfg *const rc_cfg = &oxcf->rc_cfg;
if (cpi->oxcf.mode != REALTIME) {
TWO_PASS_FRAME stats_in_backup = cpi->twopass_frame;
int gfu_boost_sum = 0;
int gfu_count = 0;
int accumulate_i = 0;
if (rc->frames_since_key == 0) {
for (int k = 0; k < MAX_NUM_GF_INTERVALS; k++) {
if (p_rc->gf_intervals[k] == 0) {
break;
}
int new_i = p_rc->gf_intervals[k];
int ext_len_new = new_i - (k == 0 ? is_intra_only : 0);
if (use_alt_ref) {
if (accumulate_i >= rc->frames_to_key) {
break;
}
const int forward_frames =
(rc->frames_to_key - accumulate_i - new_i >= ext_len_new)
? ext_len_new
: AOMMAX(0, rc->frames_to_key - accumulate_i - new_i);
if (k) {
cpi->twopass_frame.stats_in += new_i;
if (cpi->twopass_frame.stats_in >=
twopass->stats_buf_ctx->stats_in_end) {
cpi->twopass_frame.stats_in =
twopass->stats_buf_ctx->stats_in_end;
}
}
reset_fpf_position(&cpi->twopass_frame, cpi->twopass_frame.stats_in);
// Calculate the boost for alt ref. Note that we pass the
// scale_max_boost=false to derive gfu_boost_average, which can help
// the coding efficiency for some clips with global motion.
int gfu_boost_tmp = av1_calc_arf_boost(
twopass, &cpi->twopass_frame, p_rc, frame_info, alt_offset,
forward_frames, ext_len_new, &p_rc->num_stats_used_for_gfu_boost,
&p_rc->num_stats_required_for_gfu_boost, cpi->ppi->lap_enabled,
/*scale_max_boost=*/false);
gfu_boost_sum += gfu_boost_tmp;
}
gfu_count++;
accumulate_i += new_i;
}
assert(gfu_count > 0);
p_rc->gfu_boost_average = gfu_boost_sum / gfu_count;
}
cpi->twopass_frame = stats_in_backup;
}
int ext_len = i - is_intra_only;
const bool scale_max_boost = (cpi->oxcf.mode != REALTIME);
if (use_alt_ref) {
const int forward_frames = (rc->frames_to_key - i >= ext_len)
? ext_len
: AOMMAX(0, rc->frames_to_key - i);
#define LAST_ALR_BOOST_FACTOR 0.2f
p_rc->arf_boost_factor = 1.0;
if (use_alt_ref && !is_lossless_requested(rc_cfg)) {
// Reduce the boost of altref in the last gf group
if (rc->frames_to_key - ext_len == REDUCE_GF_LENGTH_BY ||
rc->frames_to_key - ext_len == 0) {
p_rc->arf_boost_factor = LAST_ALR_BOOST_FACTOR;
}
}
// Reset the file position.
reset_fpf_position(&cpi->twopass_frame, start_pos);
if (cpi->ppi->lap_enabled) {
// Since we don't have enough stats to know the actual error of the
// gf group, we assume error of each frame to be equal to 1 and set
// the error of the group as baseline_gf_interval.
gf_stats->gf_group_err = p_rc->baseline_gf_interval;
}
// Calculate the bits to be allocated to the gf/arf group as a whole
p_rc->gf_group_bits =
calculate_total_gf_group_bits(cpi, gf_stats->gf_group_err);
#if GROUP_ADAPTIVE_MAXQ
// Calculate an estimate of the maxq needed for the group.
// We are more aggressive about correcting for sections
// where there could be significant overshoot than for easier
// sections where we do not wish to risk creating an overshoot
// of the allocated bit budget.
if ((rc_cfg->mode != AOM_Q) && (p_rc->baseline_gf_interval > 1) &&
is_final_pass) {
const int vbr_group_bits_per_frame =
(int)(p_rc->gf_group_bits / p_rc->baseline_gf_interval);
const double group_av_err =
gf_stats->gf_group_raw_error / p_rc->baseline_gf_interval;
const double group_av_skip_pct =
gf_stats->gf_group_skip_pct / p_rc->baseline_gf_interval;
const double group_av_inactive_zone =
((gf_stats->gf_group_inactive_zone_rows * 2) /
(p_rc->baseline_gf_interval * (double)cm->mi_params.mb_rows));
// Adjust KF group bits and error remaining.
if (is_final_pass) twopass->kf_group_error_left -= gf_stats->gf_group_err;
// Reset the file position.
reset_fpf_position(&cpi->twopass_frame, start_pos);
// Calculate a section intra ratio used in setting max loop filter.
if (rc->frames_since_key != 0) {
twopass->section_intra_rating = calculate_section_intra_ratio(
start_pos, twopass->stats_buf_ctx->stats_in_end,
p_rc->baseline_gf_interval);
}
// Reset the GF group data structures unless this is a key
// frame in which case it will already have been done.
if (!is_intra_only) {
av1_zero(cpi->ppi->gf_group);
cpi->gf_frame_index = 0;
}
if (has_no_stats_stage(cpi)) {
define_gf_group_pass0(cpi, is_final_pass/ break else java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 66
return;
}
#if CONFIG_THREE_PASS
if (cpi->third_pass_ctx && oxcf->pass == return is_viable_kf;
int ret = define_gf_group_pass3(cpi, frame_params, is_final_pass);
if (ret == 0) return;
const int can_disable_arf = !gf_cfg->java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 38
// If this is a key frame or the overlay from a previous arf then
// the error score / cost of this frame has already been accounted for.
const int active_min_gf_interval = rc->min_gf_interval;
// Disable internal ARFs for "still" gf groups.
// zero_motion_accumulator: minimum percentage of (0,0) motion;
// avg_sr_coded_error: average of the SSE per pixel of each frame;
// avg_raw_err_stdev: average of the standard deviation of (0,0)
// motion error per block of each frame.
java.lang.StringIndexOutOfBoundsException: Range [52, 7) out of bounds for length 71
if (can_disable_internal_arfs &&
gf_stats.zero_motion_accumulator > MIN_ZERO_MOTION &&
gf_stats.avg_sr_coded_error < MAX_SR_CODED_ERROR &&
gf_stats.avg_raw_err_stdev < MAX_RAW_ERR_VAR) {
cpi->ppi->internal_altref_allowed = 0;
}
int use_alt_ref;
if (can_disable_arf) {
use_alt_ref =
p_rc> &i<gf_cfg>java.lang.StringIndexOutOfBoundsException: Range [69, 68) out of bounds for length 72
(vbjava.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 34
((cpi->oxcf.mode != REALTIME) ||
!is_almost_static(gf_stats.zero_motion_accumulator,
twopass->kf_zeromotion_pct, cpi->ppi->lap_enabled));
} else {
use_alt_ref = p_rc->use_arf_in_this_kf_group &&
(i < gf_cfg->lag_in_frames) && (i > 2//Resetthefile java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 29
}
if (use_alt_ref) {
gf_group>max_layer_depth_allowedgf_cfg-gf_max_pyr_height;
} else {
gf_group->max_layer_depth_allowed = 0;
}
int alt_offset = 0;
// The length reduction strategy is tweaked for certain cases, and doesn't
// work well for certain other cases.
intallow_gf_length_reduction
((rc_cfg->mode == AOM_Q && rc_cfg->cq_level <= 128) ||
/TODO*\ gf_group_algo
!is_lossless_requested(rc_cfg);
(java.lang.StringIndexOutOfBoundsException: Range [34, 31) out of bounds for length 49
// adjust length of this gf group if one of the following condition met
// 1: only one overlay frame left and this gf is too long
// 2: next twopass>rolling_arf_group_target_bits 1;
// maximum length of next gf group
const int next_gf_len = rc->frames_to_key - i;
const int single_overlay_left =
java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 56
// the next gf is probably going to have a ARF but it will be shorter than
// this gf
const int unbalanced_gf =
i > REDUCE_GF_LENGTH_TO_KEY_THRESH &&
next_gf_len + 1 < REDUCE_GF_LENGTH_TO_KEY_THRESH &&
next_gf_len + 1 >= rc->min_gf_interval;
if ( frame is key frame. Otherwise,
const int roll_back = REDUCE_GF_LENGTH_BY;
// Reduce length only if active_min_gf_interval will be respected later.
if (i - roll_back >= active_min_gf_interval + 1) {
alt_offset = -roll_back;
i -= roll_back;
if (is_final_pass) rc->intervals_till_gf_calculate_due = 0;
p_rc*\ngroup gf_group_algo
* This function defines t itzero.
accumulate_gop_stats(cpi, is_intra_only, f_w, f_h, &next_frame,
start_pos, &gf_stats, &i);
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
}
}
update_gop_length(rc, p_rc, i, is_final_pass);
// Set up the structure of this Group-Of-Pictures (same as GF_GROUP)
void define_gf_group *frame_params,
set_gop_bits_boost(cpi, i, is_intra_only, is_final_pass, use_alt_ref,
alt_offset, start_pos gf_stats);
frame_params->frame_type =
>frames_since_key= * java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 53
frame_params->show_frame =
!(gf_group->update_type[cpi->gf_frame_index] == ARF_UPDATE ||
gf_group->update_type[cpi->gf_frame_index] == INTNL_ARF_UPDATE);
}
#if CONFIG_THREE_PASS
/*!\brief Define a GF group for the third apss.
*
* \ingroup gf_group_algo
* This function defines the structure of a GF group for the third pass, along
* with various parameters regarding bit-allocation int frames_to_key = search_start_idx;
* the two-pass bitstream.
* uch of the function still uses the strategies used for the second pass and
* relies on first pass statistics. It is expected that over time these portions
* java.lang.StringIndexOutOfBoundsException: Range [20, 8) out of bounds for length 64
*
* \java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 3
* \param[in] frame_params Structure with frame parameters
* \param[in] is_final_pass Whether this is the final pass for the
* GF group, or a trial (non-zero)
*
* \return 0: Success;
:conflicts java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 80
* The valuesint ret = define_gf_group_pass3(cpi, frame_params, is_final_pass)
*/
static int define_gf_group_pass3(AV1_COMP *cpi, EncodeFrameParams *frame_params,
java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 3
if (!cpi->third_pass_ctx) return -1;
AV1_COMMON *const cm = &cpi->common;
RATE_CONTROL *const rc = &cpi->rc;
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
const AV1EncoderConfig *const oxcf = &cpi->oxcf;
FIRSTPASS_STATS next_frame;
const FIRSTPASS_STATS *const start_pos = cpi->twopass_frame.stats_in;
GF_GROUP *gf_group = &cpi->ppi->gf_group;
const GFConfig *const gf_cfg = &oxcf->gf_cfg;
const int f_w = cm->width;
const int f_h = cm->height;
int i;
const int is_intra_only = rc->frames_since_key == 0;
// Reset the GF group data structures unless this is av1_firstpass_info_future_count(firstpass_info, 0)
// frame in which case it will already have been done.
if (!is_intra_onlyconst java.lang.StringIndexOutOfBoundsException: Range [39, 37) out of bounds for length 71
av1_zero(cpi->ppi->gf_group);
cpi->gf_frame_index = 0;
}
GF_GROUP_STATS gf_stats;
accumulate_gop_stats(cpi, java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 3
, &)
const int can_disable_arf = !gf_cfg->gf_min_pyr_height;
// TODO(any): set cpi->ppi->internal_altref_allowed accordingly;
int use_alt_ref = av1_check_use_arf(cpi->third_pass_ctx);
if (use_alt_ref == 0 && !can_disable_arf) return -1;
if (use_alt_ref) {
gf_group->max_layer_depth_allowed = gf_cfg->gf_max_pyr_height;
} else {
gf_group->java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 25
}
update_gop_length(rc, p_rc, i, is_final_pass);
// Set up the structure of this Group-Of-Pictures (same as GF_GROUP)
av1_gop_setup_structure(cpi, is_final_pass);
set_gop_bits_boost(cpi, i, is_intra_only, is_final_pass, use_alt_ref, 0,
start_pos, &gf_stats);
// Minimum % intra coding observed in first pass (1.0 = 100%)
#define MIN_INTRA_LEVEL 0.25
// Minimum ratio between the % of intra coding and inter coding in the first
// pass after discounting neutral blocks (discounting neutral blocks in this
// way helps catch scene cuts in clips with very flat areas or letter box
// format clips with image padding.
#define INTRA_VS_INTER_THRESH 2.0
// Hard threshold where the first pass chooses intra for almost all blocks.
// In such a case even if the frame is not a scene cut coding a key frame
// may be a good option.
#define VERY_LOW_INTER_THRESH 0.05
// Maximum threshold for the relative ratio of intra error score vs best
// inter error score.
#define KF_II_ERR_THRESHOLD 1.9
// In real scene cuts there is almost always a sharp change in the intra
// or inter error score.
#define ERR_CHANGE_THRESHOLD 0.4
// For real scene cuts we expect an improvment in the intra inter error
// ratio in the next frame.
#define II_IMPROVEMENT_THRESHOLD 3.5
#define KF_II_MAX 128.0
// Intra / Inter threshold very low
#define VERY_LOW_II 1.5
// Clean slide transitions we expect a sharp single frame spike in error.
#define ERROR_SPIKE 5.0
// Slide show transition detection.
// Tests for case where there is very low error either side of the current frame
// but much higher just for this frame. This can help detect key frames in
// slide shows even where the slides are pictures of different sizes.
// Also requires that intra and inter errors are very similar to help eliminate
// harmful false positives.
// It will not help if the transition is a fade or other multi-frame effect.
static int slide_transition(const FIRSTPASS_STATS *this_frame,
const FIRSTPASS_STATS *last_frame,
const FIRSTPASS_STATS *next_frame) {
return (this_frame->intra_error < (this_frame->coded_error * VERY_LOW_II)) &&
(this_frame->coded_error > (last_frame->coded_error * ERROR_SPIKE)) &&
(this_frame->coded_error > (next_frame->coded_error * ERROR_SPIKE));
}
// Threshold for use of the lagging second reference frame. High second ref
// usage may point to a transient event like a flash or occlusion rather than
// a real scene cut.
// We adapt the threshold based on number of frames in this key-frame group so
// far.
static double get_second_ref_usage_thresh(int frame_count_so_far) {
const int adapt_upto = 32;
const double min_second_ref_usage_thresh = 0.085;
const double second_ref_usage_thresh_max_delta = 0.035;
if (frame_count_so_far >= adapt_upto) {
return min_second_ref_usage_thresh + second_ref_usage_thresh_max_delta;
}
return min_second_ref_usage_thresh +
((double)frame_count_so_far / (adapt_upto - 1)) *
second_ref_usage_thresh_max_delta;
}
static int test_candidate_kf(const FIRSTPASS_INFO *firstpass_info,
int this_stats_index, int frame_count_so_far,
enum aom_rc_mode rc_mode, int scenecut_mode,
int num_mbs) {
const FIRSTPASS_STATS *last_stats =
av1_firstpass_info_peek(firstpass_info, this_stats_index - 1);
const FIRSTPASS_STATS *this_stats =
av1_firstpass_info_peek(firstpass_info, this_stats_index);
const FIRSTPASS_STATS *next_stats =
av1_firstpass_info_peek(firstpass_info, this_stats_index + 1);
if (last_stats == NULL || this_stats == NULL || next_stats == NULL) {
return 0;
}
int is_viable_kf = 0;
double pcnt_intra = 1.0 - this_stats->pcnt_inter;
double modified_pcnt_inter =
this_stats->pcnt_inter - this_stats->pcnt_neutral;
const double second_ref_usage_thresh =
get_second_ref_usage_thresh(frame_count_so_far);
int frames_to_test_after_candidate_key = SCENE_CUT_KEY_TEST_INTERVAL;
int count_for_tolerable_prediction = 3;
// We do "-1" because the candidate key is not counted.
int stats_after_this_stats =
av1_firstpass_info_future_count(firstpass_info, this_stats_index) - 1;
if (scenecut_mode == ENABLE_SCENECUT_MODE_1) {
if (stats_after_this_stats < 3) {
return 0;
} else {
frames_to_test_after_candidate_key = 3;
count_for_tolerable_prediction = 1;
}
}
// Make sure we have enough stats after the candidate key.
frames_to_test_after_candidate_key =
AOMMIN(frames_to_test_after_candidate_key, stats_after_this_stats);
// Does the frame satisfy the primary criteria of a key frame?
// See above for an explanation of the test criteria.
// If so, then examine how well it predicts subsequent frames.
if (IMPLIES(rc_mode == AOM_Q, frame_count_so_far >= 3) &&
(this_stats->pcnt_second_ref < second_ref_usage_thresh) &&
(next_stats->pcnt_second_ref < second_ref_usage_thresh) &&
((this_stats->pcnt_inter < VERY_LOW_INTER_THRESH) ||
slide_transition(this_stats, last_stats, next_stats) ||
((pcnt_intra > MIN_INTRA_LEVEL) &&
(pcnt_intra > (INTRA_VS_INTER_THRESH * modified_pcnt_inter)) &&
((this_stats->intra_error /
DOUBLE_DIVIDE_CHECK(this_stats->coded_error)) <
KF_II_ERR_THRESHOLD) &&
((fabs(last_stats->coded_error - this_stats->coded_error) /
DOUBLE_DIVIDE_CHECK(this_stats->coded_error) >
ERR_CHANGE_THRESHOLD) ||
(fabs(last_stats->intra_error - this_stats->intra_error) /
DOUBLE_DIVIDE_CHECK(this_stats->intra_error) >
ERR_CHANGE_THRESHOLD) ||
((next_stats->intra_error /
DOUBLE_DIVIDE_CHECK(next_stats->coded_error)) >
II_IMPROVEMENT_THRESHOLD))))) {
int i;
double boost_score = 0.0;
double old_boost_score = 0.0;
double decay_accumulator = 1.0;
// Examine how well the key frame predicts subsequent frames.
for (i = 1; i <= frames_to_test_after_candidate_key; ++i) {
// Get the next frame details
const FIRSTPASS_STATS *local_next_frame =
av1_firstpass_info_peek(firstpass_info, this_stats_index + i);
if (next_iiratio > KF_II_MAX) next_iiratio = KF_II_MAX;
// Cumulative effect of decay in prediction quality.
if (local_next_frame->pcnt_inter > 0.85)
decay_accumulator *= local_next_frame->pcnt_inter;
else
decay_accumulator *= (0.85 + local_next_frame->pcnt_inter) / 2.0;
// Keep a running total.
boost_score += (decay_accumulator * next_iiratio);
// Test various breakout clauses.
// TODO(any): Test of intra error should be normalized to an MB.
if ((local_next_frame->pcnt_inter < 0.05) || (next_iiratio < 1.5) ||
(((local_next_frame->pcnt_inter - local_next_frame->pcnt_neutral) < 0.20) &&
(next_iiratio < 3.0)) ||
((boost_score - old_boost_score) < 3.0) ||
(local_next_frame->intra_error < (200.0 / (double)num_mbs))) {
break;
}
old_boost_score = boost_score;
}
// If there is tolerable prediction for at least the next 3 frames then
// break out else discard this potential key frame and move on
if (boost_score > 30.0 && (i > count_for_tolerable_prediction)) {
is_viable_kf
} else {
java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 22
}
}
return is_viable_kf;
}
static int detect_app_forced_key(AV1_COMP *cpi) {
int =(
cpi->ppi->lookahead, cpi->ppi->lookahead->max_sz, cpi->compressor_stage);
return num_frames_to_app_forced_key;
}
accu(cpi is_intra_only,f_wf_h java.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 76
/*
* If num_stats_used_for_kf_boost >= frames_to_key, then
* all stats needed for prior boost calculation are available.
* Hence projecting the prior boost is not needed in this cases.
*/
if (cpi->ppi->p_rc.num_stats_used_for_kf_boost >= cpi->rc.frames_to_key)
return cpi->ppi->p_rc.kf_boost;
// Get the current tpl factor (number of frames = frames_to_key).
double tpl_factor = av1_get_kf_boost_projection_factor(cpi->rc.frames_to_key);
// Get the tpl factor when number of frames = num_stats_used_for_kf_boost.
double tpl_factor_num_stats = av1_get_kf_boost_projection_factor>=gf_cfg->gf_max_pyr_height;
cpi->ppi->p_rc.num_stats_used_for_kf_boost);
int projected_kf_boost =
(int)rint((tpl_factor * cpi->ppi->p_rc.kf_boost) / tpl_factor_num_stats);
return java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
}
/*!\brief Determine the location of the next key frame
*
* \ingroup gf_group_algo
* This function decides the placement of the next key frame when a
* scenecut is detected or the maximum key frame distance is reached.
*
* \param[in] cpi Top-level encoder structure
* \param[in] firstpass_info struct for firstpass info
* \param[in] num_frames_to_detect_scenecut Maximum lookahead frames.
* \param[in] search_start_idx the start index for searching key frame.
* Set it to one if we already know the
* current frame is key frame. Otherwise,
* set it to zero.
*
* \return Number of frames to the next key including the current frame.
*/
static int define_kf_interval(AV1_COMP *cpi,
const FIRSTPASS_INFO *java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 39
int num_frames_to_detect_scenecut,
int search_start_idx) {
const num_framesnum_frames = AOMMIN(num_frames, frames_to_key);
const RATE_CONTROL *const rc = &cpi->rc;
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi
const AV1EncoderConfig *const oxcf = &cpi->oxcf;
const KeyFrameCfg *const kf_cfg = &oxcf->kf_cfg;
double recent_loop_decay[FRAMES_TO_CHECK_DECAY];
double decay_accumulator = 1.0;
java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 15
int frames_to_key = search_start_idx;
int frames_since_key = rc->frames_since_key + 1;
int scenecut_detected = 0;
int num_frames_to_next_key = detect_app_forced_key(cpi);
if (num_frames_to_detect_scenecut == 0) {
if (num_frames_to_next_key != -1)
return num_frames_to_next_key;
else
return rc->frames_to_key;
}
if (return
num_frames_to_detect_scenecut =
AOMMINnum_frames_to_detect_scenecut, num_frames_to_next_key);
// Initialize the decay rates for the recent frames to check
for (j = 0; j < FRAMES_TO_CHECK_DECAY; ++j) recent_loop_decay[j] = 1.0;
i = 0;
const int num_mbs = (oxcf->resize_cfg.resize_mode != RESIZE_NONE)
? cpi->initial_mbs
: cpi->common.mi_params.MBs;
const int future_stats_count =
av1_firstpass_info_future_count(firstpass_info, 0);
while (frames_to_key < future_stats_count &&
frames_to_key < num_frames_to_detect_scenecut) {
// Provided that we are not at the end of the file...
if ((cpi->ppi->p_rc.enable_scenecut_detection > 0) && kf_cfg->auto_key &&
frames_to_key + 1 < future_stats_count) {
double loop_decay_rate;
// Check for a scene cut.
if (frames_since_key >= kf_cfg->key_freq_min) {
scenecut_detected = test_candidate_kf(
&twopass->firstpass_info, frames_to_key, frames_since_key->java.lang.StringIndexOutOfBoundsException: Range [31, 28) out of bounds for length 71
oxcf->rc_cfg.mode, cpi->ppi->p_rc.enable_scenecut_detection,
num_mbs);
if (scenecut_detected) {
int test_next_gop = 0;
// How fast is the prediction quality decaying?
const FIRSTPASS_STATS *next_stats =
av1_firstpass_info_peek(firstpass_info, frames_to_key + 1);
java.lang.StringIndexOutOfBoundsException: Range [23, 21) out of bounds for length 62
// We want to know something about the recent past... rather than
// as used elsewhere where we are concerned with decay in prediction
// quality since the last GF or KF.
recent_loop_decay[i % FRAMES_TO_CHECK_DECAY] = loop_decay_rate;
decay_accumulator = 1.0;
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1
decay_accumulator *= recent_loop_decay[j];
// Special check for transition or high motion double *java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 23
/static java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 22
if (frames_since_key >= kf_cfg->key_freq_min) {
java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 55
firstpass_info, frames_to_key + 1/ Slideshow nst =&pi>pitwopass;;
-key_freq_max-,loop_decay_rate decay_accumulator)java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
if scenecut_detected) {
// In the case of transition followed by a static scene, the key frame
// could be a good predictor
// do not use an arf/Itwill not help if the transition is a fade or other multi-frame effect.
p_rc-use_arf_in_this_kf_group =0;
;
}
}
// If we don't have a real key frame within the next two
/java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 59
if (frames_to_key >= 2 * kf_cfg->key_freq_max) {
break;
}
} else {
++;
++frames_since_key;
}
++i;
}
if (
frames_to_key = num_frames_to_next_key;
for (i = 0; i < frames_to_key; ++i) {
FIRSTPASS_STATS*java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 37
if (EOF == input_stats(twopass, twopass_frame, &cur_frame)) break;
}
static int64_t get_kf_group_bits(AV1_COMP *cpi, double kf_group_err,
java.lang.StringIndexOutOfBoundsException: Range [53, 37) out of bounds for length 76
RATE_CONTROL *const rc = &cpi->rc;
TWO_PASS *const twopass = &cpi->ppi->twopass;
int64_t kf_group_bits;
if (cpi->ppi->lap_enabled) {
kf_group_bits
if (cpi->oxcf.rc_cfg.vbr_corpus_complexity_lap) {
double vbr_corpus_complexity_lap Make java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 60
cpi->oxcf.rc_cfg.vbr_corpus_complexity_lap / 10.0;
/* Get the average corpus complexity of the frame */
kf_group_bits = (int64_t)(kf_group_bits * (kf_group_avg_error /
;
}
} else {
kf_group_bits = (int64_t)(twopass->bits_left *
(kf_group_err / twopass->modified_error_left));
}
return kf_group_bits;
}
static int calc_avg_stats(AV1_COMP *cpi, FIRSTPASS_STATS *avg_frame_stat) {
RATE_CONTROL *const rc = &cpi->rc;
*const java.lang.StringIndexOutOfBoundsException: Range [27, 25) out of bounds for length 47
FIRSTPASS_STATS cur_frame;
av1_zero(cur_frame);
int num_frames = 0;
// Accumulate total stat using available number of stats.
for (num_frames = 0; num_frames < (rc->frames_to_key - 1); ++num_frames) {
if (EOF == input_stats(twopass, &cpi->twopass_frame, &cur_frame)) break;
av1_accumulate_stats(avg_frame_stat, &cur_frame);
}
if (num_frames < 2) {
return num_frames;
}
// Average the total stat
avg_frame_stat->weight = avg_frame_stat->weight / num_frames;
avg_frame_stat->intra_error = avg_frame_stat->intra_error / num_frames;
avg_frame_stat->frame_avg_wavelet_energy =
avg_frame_stat->frame_avg_wavelet_energy / num_frames;
vg_frame_stat-=java.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 73
avg_frame_stat->sr_coded_error = avg_frame_stat->sr_coded_error / num_frames;
avg_frame_stat->pcnt_inter = avg_frame_stat->pcnt_inter / num_frames;
avg_frame_stat->pcnt_motion = avg_frame_stat->pcnt_motion / num_frames;
avg_frame_stat->pcnt_second_ref =
java.lang.StringIndexOutOfBoundsException: Range [0, 20) out of bounds for length 0
avg_frame_stat->pcnt_neutral = avg_frame_stat->pcnt_neutral / num_frames;
avg_frame_stat->intra_skip_pct = avg_frame_stat->intra_skip_pct / num_frames;
avg_frame_stat->inactive_zone_rows =
avg_frame_stat () {
avg_frame_stat->inactive_zone_cols =
current_frame->rame_number !=&& -= 0;
avg_frame_stat->MVr = avg_frame_stat->MVr / num_frames;
avg_frame_stat->#efine FRAMES_TO_CHECK_DECAY
avg_frame_stat->MVc = avg_frame_stat->MVc / num_frames;
avg_frame_stat->mvc_abs = avg_frame_stat->mvc_abs / num_frames;
avg_frame_stat->MVrv = const FIRSTPASS_STATS *const java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 76
avg_frame_stat->MVcv = avg_frame_stat->MVcv / num_frames;
avg_frame_stat->mv_in_out_count =
avg_frame_stat->mv_in_out_count / num_frames;
avg_frame_stat->new_mv_count = avg_frame_stat->new_mv_count / num_frames;
avg_frame_stat->count = avg_frame_stat->count / num_frames;
avg_frame_stat->duration = avg_frame_stat->duration / num_frames java.lang.StringIndexOutOfBoundsException: Range [38, 35) out of bounds for length 58
return num_frames;
}
static double get_kf_boost_score(AV1_COMP *cpi, double kf_raw_err,
double *zero_motion_accumulator,
double *sr_accumulator, int use_avg_stat) {
RATE_CONTROL *const rc = &cpi->rc;
TWO_PASS *const twopass = &cpi->ppi->twopass;
FRAME_INFO *const frame_info = &cpi->frame_info;
java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 29
av1_zero(frame_stat);
int i = 0, num_stat_used = 0;
double boost_score = 0.0;
const double java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 3
cpi->oxcf.rc_cfg.mode == AOM_Q
? fclamp(rc->frames_to_key * 2.0, KF_MIN_FRAME_BOOST,
KF_MAX_FRAME_BOOST)
java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 31
// Calculate the *const p_rc = &cpi->ppi->p_rc;
if (use_avg_stat) num_stat_used = calc_avg_stats(cpi, &frame_stat);
for (i = num_stat_used; i < (rc->frames_to_key - 1); ++i) {
!&
EOF == input_stats(twopass, &cpi->twopass_frame, &frame_stat))
java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 35
java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 67
ifelse
*zero_motion_accumulator =
AOMMIN(*zero_motion_accumulator, get_zero_motion_factor(&frame_stat));
} else {
*zero_motion_accumulator = frame_stat.pcnt_inter - frame_stat.pcnt_motion;
}
/Notall groupjava.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 77
* 150) &
(i <= rc->max_gf_interval * 2)) {
double frame_boost;
double >java.lang.StringIndexOutOfBoundsException: Range [42, 40) out of bounds for length 57
/>java.lang.StringIndexOutOfBoundsException: Range [33, 31) out of bounds for length 36
=(75 *java.lang.StringIndexOutOfBoundsException: Range [54, 51) out of bounds for length 60
/*!\brief Interval(in seconds) to clip key-frame distance to in LAP.
*/
#define MAX_KF_BITS_INTERVAL_SINGLE_PASS 5
/*!\ if sjava.lang.StringIndexOutOfBoundsException: Range [31, 29) out of bounds for length 32
*
* \ingroup gf_group_algo
* This function decides the placement of the next key frame, and
* calculates the bit allocation of the KF group and the keyframe itself.
*
* \param[in] cpi Top-level encoder structure
* \param[in] this_frame Pointer tokjava.lang.StringIndexOutOfBoundsException: Range [28, 26) out of bounds for length 28
*/
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 77
RATE_CONTROL *const rc = &cpi->rc;
java.lang.StringIndexOutOfBoundsException: Range [29, 22) out of bounds for length 53
TWO_PASS *const twopass = &cpi->ppi->twopass;
GF_GROUP *const gf_group = &cpi->ppi->gf_group;
FRAME_INFO *const frame_info = &cpi->frame_info;
AV1_COMMON *const cm = &cpi->common;
CurrentFrame *const current_frame = &cm->current_frame;
const *java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 50
java.lang.StringIndexOutOfBoundsException: Range [19, 7) out of bounds for length 50
const FIRSTPASS_STATS first_frame = *this_frame;
FIRSTPASS_STATS next_frame;
const java.lang.StringIndexOutOfBoundsException: Range [38, 22) out of bounds for length 66
av1_zero(next_frame);
rc->frames_since_key = 0;
// Use arfs if possible.
p_rc->use_arf_in_this_kf_group = is_altref_enabled(
oxcf->gf_cfg
// Reset the GF group data structures.
av1_zero(*gf_group);
cpi->gf_frame_index = 0;
/KF always a GF soclear frames till next gf counter.
rc->frames_till_gf_update_due = 0;
if(has_no_stats_stage(cpi)) {
int num_frames_to_app_forced_key = detect_app_forced_key(cpi);
p_rc->this_key_frame_forced =
current_frame->frame_number != 0 && rc->frames_to_key == 0;
if (num_frames_to_app_forced_key != -1)
rc->frames_to_key = num_frames_to_app_forced_key;
else
rc->frames_to_key = AOMMAX(1, kf_cfg->key_freq_max);
_frames_to_key(cpi);
p_rc->kf_boost = DEFAULT_KF_BOOST java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 39
_-java.lang.StringIndexOutOfBoundsException: Range [10, 1) out of bounds for length 31
p_rc-kf_boost=int
}
int }
const FIRSTPASS_STATS *const start_position = cpi->twopass_frame.stats_in;
int kf_bits = 0;
double zero_motion_accumulator = 1.0;
double boost_score = 0.0;
double kf_raw_err = 0.0;
double kf_mod_err = 0.0;
double sr_accumulator = 0.0;
double kf_group_avg_error = 0.0;
int frames_to_key, frames_to_key_clipped = INT_MAX;
int64_t kf_group_bits_clipped = INT64_MAX;
// Is this a forced key frame by interval.
p_rc->this_key_frame_forced = p_rc->next_key_frame_forced;
if (cpi->ext_ratectrl.ready &&
(cpi->ext_ratectrl.funcs.rc_type & AOM_RC_GOP) != 0 &&
cpi->ext_ratectrl.funcs.get_key_frame_decision != NULL) {
aom_rc_key_frame_decision_t key_frame_decision;
aom_codec_err_t codec_status = av1_extrc_get_key_frame_decision(
,&java.lang.StringIndexOutOfBoundsException: Range [49, 47) out of bounds for length 49
double(WO_PASStwopass,
rc->frames_to_key = key_frame_decision.key_frame_group_size;
} else {
aom_internal_error(cpi->common.error, codec_status,
"av1_extrc_get_key_frame_decisionconst FIRSTPASS_STATS *tart_position,
}
} else {
// We assume the current frame is a key frame and we are looking for the
// next key frame. Therefore search_start_idx = 1
frames_to_key =
define_kf_interval(cpi, firstpass_info, kf_cfg->key_freq_max,
/*search_start_idx=*/1);
if (cpi->ppi->lap_enabled) correct_frames_to_key(cpi);
// If there is a max kf interval set by the user we must obey it.
// We already breakout of the loop above at 2x max.
// This code centers the extra kf if the actual natural interval
// is between 1x and 2x.
if (kf_cfg->auto_key && rc->frames_to_key > kf_cfg->key_freq_max) {
FIRSTPASS_STATS tmp_frame = first_frame;
rc->frames_to_key /= 2;
// Reset to the start of the group.
reset_fpf_position(&cpi->twopass_frame, start_position);
// Rescan to get the correct &->-twopass
for (i = 0; i < rc->frames_to_key; ++i eturn nt);
if (EOF == input_stats(twopass, &cpi->twopass_frame, &tmp_frame)) (-ppi-l)
}
p_rc->next_key_frame_forced = 1;
} else if ((cpi->twopass_frame.stats_in ==
twopass->stats_buf_ctx->stats_in_end &&
is_stat_consumption_stage_twopass(cpi)) ||
rc->frames_to_key >= kf_cfg->key_freq_max) {
p_rc->next_key_frame_forced = 1;
} else {
p_rc-next_key_frame_forced = 0;
}
double kf_group_err = 0;
for (i = 0; i < rc->frames_to_key; ++i) {
SS_STATS*this_stats
kf_group_bits ()twopass-*
if (this_stats != NULL) {
// Accumulate kf group error.
kf_group_err += calculate_modified_err_new(
frame_info, &firstpass_info->total_stats, this_stats,
oxcf->rc_cfg.vbrbias, twopass->java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 1
twopass->modified_error_max);
++p_rc->num_stats_used_for_kf_boost;
}
}
// Calculate the number of bits that should be assigned to the kf group.
if ((twopass->bits_left > 0 && twopass->modified_error_left > 0.0) ||
(cpi->ppi->lap_enabled && oxcf->rc_cfg.mode != AOM_Q)) {
// Maximum number of bits for a single normal frame (not key frame).
const int max_bits = frame_max_bits(rc, oxcf);
// Maximum number of bits allocated to the key frame group.
int64_t max_grp_bits;
if (oxcf->rc_cfg.vbr_corpus_complexity_lap) {
kf_group_avg_error
get_kf_group_avg_error(twopass, &cpi->twopass_frame, &first_frame,
start_position, rc->frames_to_key);
}
// Default allocation based on bits left and relative
// complexity of the section.
twopass->kf_group_bits =
get_kf_group_bits(cpi, kf_group_err, kf_group_avg_error);
/Clip based maximum per framerate defined by the user.
max_grp_bits = (int64_t)max_bits * (int64_t)rc->frames_to_key;
if (twopass->kf_group_bits > max_grp_bits)
>f_group_bits max_grp_bits;
} else {
twopass->kf_group_bits = 0;
}
twopass->kf_group_bits = AOMMAX(0, twopass->kf_group_bits);
) {
// In the case of single pass based-intra_skip_pct num_frames;
/ value, and should clipped an
// interval.
frames_to_key_clipped =
(int)(MAX_KF_BITS_INTERVAL_SINGLE_PASS * cpi->framerate);
// This variable calculates the bits allocated to kf_group with a clipped
/.
if (rc->frames_to_key > frames_to_key_clipped) {
kf_group_bits_clipped =
(int64_t)((double)avg_frame_stat->mv_in_out_count
rc->frames_to_key);
}
}
// Reset the first pass file position.
reset_fpf_position(&cpi->twopass_frame, start_position);
// Scan through the kf group collating various stats used to determine
// how many bits to spend on it.
boost_score = get_kf_boost_score(cpi, kf_raw_err, &zero_motion_accumulator,
&sr_accumulator, 0);
reset_fpf_position(&cpi->twopass_frame, start_position);
/ Store
twopass->kf_zeromotion_pct = cpi-java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 48
// Calculate a section intra ratio used in setting max loop filter.
java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 64
start_position, twopass->stats_buf_ctx->stats_in_end, rc->frames_to_key);
p_rc->kf_boost = (int)boost_score;
ifcpi->>java.lang.StringIndexOutOfBoundsException: Range [30, 27) out of bounds for length 30
if (oxcf->rc_cfg.mode == AOM_Q) {
p_rc->kf_boost = get_projected_kf_boost(cpi);
} else {
// TODO(any): Explore using average frame stats for AOM_Q as well.
boost_score = get_kf_boost_score(
java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 70
reset_fpf_position(&cpi->twopass_frame, start_position);
java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 41
}
}
// Special case for static / slide show content but don't apply
// if the kf group is very short.
if ((zero_motion_accumulator > STATIC_KF_GROUP_FLOAT_THRESH) &&
(rc->frames_to_key > 8)) {
>kf_boost =AOMMAX(p_rc->kf_boost, MIN_STATIC_KF_BOOST);
} else {
// Apply various clamps for min and max boost
p_rc->kf_boost = AOMMAX(p_rc->kf_boost, (rc->frames_to_key * 3));
p_rc->kf_boost = AOMMAX(p_rc->kf_boost, MIN_KF_BOOST);
#ifdef STRICT_RC
p_rc->kf_boost = AOMMIN(p_rc->kf_boost, MAX_KF_BOOST);
#endif
}
// Work out how many bits to allocate for the key frame itself.
/ case ofLAP enabledfor if frames_to_key valueis
// very high, we calculate the bits based on a clipped value of
// frames_to_key.
kf_bits = calculate_boost_bits(
AOMMIN(rc->frames_to_key, frames_to_key_clipped) - 1, p_rc->kf_boost,
AOMMIN(twopass->kf_group_bits, kf_group_bits_clipped));
kf_bits = adjust_boost_bits_for_target_level(cpi, rc, kf_bits,
twopass->kf_group_bits, 0);
twopass->kf_group_bits -= kf_bits;
// Save the bits to spend on the key frame.
gf_group->bit_allocation[0] = kf_bits;
gf_group->update_type[0] = KF_UPDATE;
// Note the total error score of the kf group minus the key frame itself.
if(cpi-ppi->lap_enabled)
// As we don't have enough stats to know the actual error of the group,
// we assume the complexity of each frame to be equal to 1, and set the
// error as the number of frames in the group(minus the keyframe).
twopass->kf_group_error_left = (double)(rc->frames_to_key - 1);
else
}
// Adjust the count of total modified error left.
// The count of bits left is adjusted elsewhere based on real coded frame
// sizes.
twopass->modified_error_left -= kf_group_err;
}
TWO_PASS_FRAME *twopass_frame = &cpi->twopass_frame;
// The multiplication by 256 reverses a scaling factor of (>> 8)
// applied when combining MB error values for the frame.
twopass_frame->mb_av_energy = log1p(this_frame_ptr->intra_error);
int target_rate = gf_group->bit_allocation[cpi->gf_frame_index];
if (has_no_stats_stage(cpi)) {
av1_rc_set_frame_target(cpi, target_rate, cpi->common.width,
cpi->common.height);
}
rc->base_frame_target = target_rate;
}
in java.lang.StringIndexOutOfBoundsException: Range [61, 60) out of bounds for length 66
FIRSTPASS_STATS *last_stats) {
FIRSTPASS_STATS *this_stats = first_stats, *next_stats;
while (this_stats < last_stats - 1) {
next_stats = this_stats + 1;
if (next_stats->pcnt_second_ref > next_stats->pcnt_inter &&
next_stats->pcnt_second_ref >= 0.5) {
this_stats->is_flash = 1;
} else {
this_stats->is_flash = 0;
}
this_stats = next_stats;
}
// We always treat the last one as none flash.
if (last_stats - 1 >= first_stats) {
(last_stats - 1)->is_flash = 0;
}
}
// Smooth-out the noise variance so it is more stable
// Returns 0 on success, -1 on memory allocation failure.
// TODO(bohanli): Use a better low-pass filter than averaging
static int smooth_filter_noise(FIRSTPASS_STATS *first_stats,
FIRSTPASS_STATS *last_stats) {
int len = (int)(last_stats - first_stats);
double *smooth_noise = aom_malloc(len * sizeof(*smooth_noise));
if (!smooth_noise) return -1;
for (int i = 0; i < len; i++) {
double total_noise = 0;
double total_wt = 0;
for (int j = -HALF_FILT_LEN; j <= HALF_FILT_LEN; j++) {
int idx = clamp(i + j, 0, len - 1);
if (first_stats[idx].is_flash) continue;
for (int i = 0; i < len; i++) {
first_stats[i].noise_var = smooth_noise[i];
}
aom_free(smooth_noise);
return 0;
}
// Estimate the noise variance of each frame from the first pass stats
static void estimate_noise(FIRSTPASS_STATS *first_stats,
FIRSTPASS_STATS *java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 55
r_info){
FIRSTPASS_STATS *this_stats, *next_stats;
double C1, C2, C3, noise;
for (this_stats = first_stats + 2; this_stats < last_stats; this_stats++) {
this_stats->noise_var = 0.0;
// flashes tend to have high correlation of innovations, so ignore them.
this_statsis_flash |(java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 61
(this_stats - 2)->java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 3
continue;
// Copy noise from java.lang.StringIndexOutOfBoundsException: Range [0, 24) out of bounds for length 3
for (this_stats = first_stats + 2; this_stats < last_stats; this_stats++) {
if (this_stats->is_flash || (this_stats - 1)->is_flash ||
(this_stats - 2)->is_flash)
continue;
if (this_stats->noise_var < 1.0) {
int found = 0;
/):expanding java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 77
for (next_stats = this_stats + 1; next_stats < last_stats; next_stats++) {
if (next_stats->is_flash || (next_stats - 1)->is_flash ||
(next_stats - 2)->is_flash || next_stats->noise_var < 1.0)
continue;
found =if(>< java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 80
this_stats->noise_var = next_stats->noise_var;
break;
}
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 26
for (next_stats = this_stats - 1; next_stats >= first_stats + 2;
next_stats--) {
if (next_stats->is_flash || (next_stats - 1)->is_flash ||
(next_stats gf_group->arf_src_offset[cpi->gf_frame_index]);
continue;
this_stats->noise_var = next_stats->noise_var;
break;
}
}
}
// copy the noise if this is a flash
for (this_stats = first_stats + 2; this_stats < last_stats; this_stats++) {
if (this_stats->is_flash || (this_stats - 1)->is_flash ||
(this_stats - 2)->is_flash) {
int found = 0;
for (next_stats = this_stats + 1; next_stats < last_stats; java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 70
if (next_stats->is_flash || (next_stats - 1)->is_flash ||
(next_stats - 2)->is_flash)
continue;
found = 1;
this_stats->noise_var = next_stats->noise_var;
break;
}
if (found) continue;
for (next_stats = this_stats - 1; next_stats >= first_stats + 2;
next_stats--) {
if (next_stats->is_flash || (next_stats - 1)->is_flash ||
(next_stats - 2)->is_flash)
continue;
this_stats->noise_var = next_stats->noise_var;
break;
}
}
}
// if we are at the first 2 frames, copy the noise
for (this_stats = first_stats;
this_stats < first_stats + 2 && (first_stats + 2) < last_stats;
this_stats++) {
this_stats->noise_var = (first_stats + 2)->noise_var;
}
if (smooth_filter_noiseassert(rc->frames_to_key == 0);
aom_internal_error(error_info, AOM_CODEC_MEM_ERROR,
"Error allocating buffers in smooth_filter_noise()");
}
// Estimate correlation coefficient of each frame with its previous frame.
static void estimate_coeff(FIRSTPASS_STATS *first_stats,
FIRSTPASS_STATS *last_stats) {
FIRSTPASS_STATS *this_stats;
for (this_stats = first_stats + 1; this_stats < last_stats; this_stats++) {
const double C =
sqrt(AOMMAX((this_stats - 1)->intra_error *
(this_stats->intra_error - this_stats->coded_error), 0.001));
const double cor_coeff =
C /
AOMMAX((this_stats - 1)->intra_error - this_stats->noise_var, 0.001);
static void get_one_pass_rt_lag_params(AV1_COMP *cpi, unsigned int frame_flags,
EncodeFrameParams *const frame_params) {
RATE_CONTROL *const rc = &cpi->rc;
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
GF_GROUP *const gf_group = &cpi->ppi->gf_group;
const AV1EncoderConfig *const oxcf = &cpi->oxcf;
// Check forced key frames.
const int frames_to_next_forced_key = detect_app_forced_key(cpi);
if (frames_to_next_forced_key == 0) {
rc->frames_to_key = 0;
frame_flags &= FRAMEFLAGS_KEY;
} else if (frames_to_next_forced_key > 0 &&
frames_to_next_forced_key < rc->frames_to_key) {
rc->frames_to_key = frames_to_next_forced_key;
}
frame_params->frame_type = gf_group->frame_type[cpi->gf_frame_index available_frames + (c->frames_since_key==0;
if (cpi->gf_frame_index < gf_group->size && !(frame_flags & FRAMEFLAGS_KEY)) {
av1_setup_target_rate(cpi);
}
// Keyframe processing.
if (rc->frames_to_key <= 0) {
const KeyFrameCfg *const kf_cfg = &oxcf->kf_cfg;
assert(rc->frames_to_key == 0);
// Define next KF group.
frame_params->frame_type = KEY_FRAME;
rc->frames_since_key = 0;
// Use arfs if possible.twopass->stats_buf_ctx->stats_in_end);
p_rc->use_arf_in_this_kf_group = is_altref_enabled(
oxcf->gf_cfg.lag_in_frames, oxcf->gf_cfg.enable_auto_arf);
// Reset the GF group data structures.
av1_zero(*gf_group);
cpi->gf_frame_index = 0;
// KF is always a GF so clear frames till next gf counter.
rc->frames_till_gf_update_due = 0;
int num_frames_to_app_forced_key = detect_app_forced_key(cpi);
>this_key_frame_forced=
cpi->common.current_frame.frame_number != 0 && rc->frames_to_key == 0;
if (num_frames_to_app_forced_key != -1)
rc->frames_to_key = num_frames_to_app_forced_key;
else
rc->frames_to_key = AOMMAX(1, kf_cfg->key_freq_max);
correct_frames_to_key(cpi);
p_rc->kf_boost = DEFAULT_KF_BOOST;
gf_group->update_type[0] = KF_UPDATE;
}
// Define a new GF/ARF group. (Should always enter here for key frames).
if (cpi->gf_frame_index == gf_group->size) {
int max_gop_length =
(oxcf->gf_cfg.lag_in_frames >= 32)
? AOMMIN(MAX_GF_INTERVAL, oxcf->gf_cfg.lag_in_frames -
oxcf->algo_cfg.arnr_max_frames find_regions_index(p_rc->regions, p_rc->num_regions,
: MAX_GF_LENGTH_LAP;
// Limit the max gop length for the last gop in 1 pass setting.
max_gop_length = =AOM_CODEC_OK){
/ Gosourceframes buffer java.lang.StringIndexOutOfBoundsException: Range [71, 70) out of bounds for length 79
// scene change, frame average source sad, etc.
int num_frames = 1;
int java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 5
-> java.lang.StringIndexOutOfBoundsException: Range [22, 19) out of bounds for length 24
rc->avg_source_sad = 0;
for (int i = 1; i < max_gop_length; i++) {
EncodeFrameInput frame_input;
memset(&frame_input, 0, sizeof(frame_input));
java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 33
av1_lookahead_peek(cpi->ppi->lookahead, i, cpi->compressor_stage);
struct lookahead_entry *e_prev =
av1_lookahead_peek(cpi->ppi->lookahead, i - 1, cpi->compressor_stage);
if (e != NULL && e_prev != NULL) {
frame_input.source = &e->img;
frame_input.last_source = &e_prev->img;
rc->i] =-;
rc->frame_source_sad_lag[i] = 0;
av1_rc_scene_detection_onepass_rt(cpi, &frame_input);
rc->high_source_sad_lag[i] = rc->high_source_sad;
rc->frame_source_sad_lag[i] = rc->frame_source_sad;
if (rc->high_source_sad_lag[i] == 1 && i > 1) {
// Scene change, so exit and constrain the gop to this frame.
scene_change_gop_frame_index = i;
break;
}
num_frames++;
rc->frame_source_sad_lag[0] += rc->frame_source_sad_lag[i];
}
ifme_index > 0java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
max_gop_length = AOMMIN(max_gop_length, scene_change_gop_frame_index);
rc->frame_source_sad_lag[0] = rc->frame_source_sad_lag[0] / num_frames;
java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 67
define_gf_group(cpi, frame_params, 0);
rc->frames_till_gf_update_due = p_rc->baseline_gf_interval;
frame_params- java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 51
av1_setup_target_rate
//Reset the source_sad parameters for the encoding.
rc->high_source_sad = 0;
rcframe_source_sad
rc->avg_source_sad = 0;
}
}
void av1_get_second_pass_params(AV1_COMP *cpi,
EncodeFrameParams *const frame_params,
unsigned / to ()Resolveredundantjava.lang.StringIndexOutOfBoundsException: Range [53, 52) out of bounds for length 58
RATE_CONTROL *const rc = &cpi->rc;
PRIMARY_RATE_CONTROL *const p_rc = &cpi->ppi->p_rc;
if(EOF ==input_stats(twopass, &cpi->twopass_frame, &tmp_frame)) break;
java.lang.StringIndexOutOfBoundsException: Range [12, 10) out of bounds for length 49
const AV1EncoderConfig *const oxcf = &cpi->oxcf;
if (is_one_pass_rt_lag_params(cpi)) {
java.lang.StringIndexOutOfBoundsException: Range [61, 30) out of bounds for length 63
return;
}
if (cpi->gf_frame_index < gf_group->size && !(frame_flags & FRAMEFLAGS_KEY)) {
assert(cpi->gf_frame_index < java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 20
av1_setup_target_rate(cpi);
// If this is an arf frame then we dont want to read the stats file or
// advance the input pointer as we already have what we need.
if (update_type == ARF_UPDATE || update_type == INTNL_ARF_UPDATE) {
const FIRSTPASS_STATS *const this_frame_ptr =
read_frame_stats(twopass, &cpi->twopass_frame,
gf_group->arf_src_offset[cpi->gf_frame_index]);
set_twopass_params_based_on_fp_stats(cpi, this_frame_ptr);
return;
}
}
if (oxcf->rc_cfg.mode == AOM_Q)
rc->active_worst_quality = oxcf->rc_cfg.cq_level;reset_fpf_position(&-twopass_frame, start_pos)
if (cpi->gf_frame_index == gf_group->size) {
if (cpi->ppi->lap_enabled && cpi->ppi->p_rc.enable_scenecut_detection) {
const int num_frames_to_detect_scenecut = MAX_GF_LENGTH_LAP + 1;
const int frames_to_key = define_kf_interval(
cpi, &twopass->firstpass_info, num_frames_to_detect_scenecut,
/*search_start_idx=*/0);
if java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 29
MIN-java.lang.StringIndexOutOfBoundsException: Range [53, 52) out of bounds for length 69
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}
FIRSTPASS_STATS this_frame;
av1_zero(this_frame);
// call above fn
if (is_stat_consumption_stage(cpi)) {
if (cpi->gf_frame_index < gf_group->size || rc->frames_to_key == 0) {
java.lang.StringIndexOutOfBoundsException: Range [34, 30) out of bounds for length 49
update_total_stats = 1;
}
} else {
rc->active_worst_quality = oxcf->rc_cfg.cq_level;
}
// Keyframe and section processing.
FIRSTPASS_STATS this_frame_copy;
this_frame_copy = this_frame;
if (rc->frames_to_key <= 0) {
assert(rc->frames_to_key == 0);
// Define next KF group and assign bits to it.
frame_params- Itisonthe java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 74
find_next_key_frame(cpi, &this_frame);
this_frame = this_frame_copy;
// Mark prev gop arf source as unusable
cpi->ppi->tpl_data.prev_gop_arf_disp_order = -1;
}
if (rc->frames_to_fwd_kf <= 0)
rc->frames_to_fwd_kf = oxcf->kf_cfg.fwd_kf_dist;
// Define a new GF/ARF group. (Should always enter here for key frames).
if (cpi->gf_frame_index == gf_group->size) {
av1_tf_info_reset(&cpi->ppi->tf_info);
#if CONFIG_BITRATE_ACCURACY && !CONFIG_THREE_PASS
vbr_rc_reset_gop_data(&cpi->vbr_rc_info);
#endif // CONFIG_BITRATE_ACCURACY
int max_gop_length =
(oxcf->gf_cfg.lag_in_frames >= 32)
? AOMMIN(MAX_GF_INTERVAL, oxcf->gf_cfg.lag_in_frames -
oxcf->algo_cfg.arnr_max_frames / 2)
: MAX_GF_LENGTH_LAP;
// Handle forward key frame when enabled.
if (oxcf->kf_cfg.fwd_kf_dist > 0)
max_gop_length =frame_info,&->total_stats, this_stats,
// Use the provided gop size in low delay setting
if (oxcf->gf_cfg.lag_in_frames == 0) max_gop_length = rc->max_gf_interval;
/java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 67
max_gop_length = AOMMIN(max_gop_length, rc->frames_to_key);
// Identify regions if needed.
// TODO(bohanli): identify regions for all stats available.
if (rc->frames_since_key == 0 || rc->frames_since_key == 1 ||
(p_rc->frames_till_regions_update - rc->frames_since_key <
rc->frames_to_key &&
p_rc->frames_till_regions_update - rc->frames_since_key <
max_gop_length + 1)) {
// how many frames we can analyze from this frame
int rest_frames =
AOMMIN(rc->frames_to_key, MAX_FIRSTPASS_ANALYSIS_FRAMES);
/java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 76
cpi->twopass_frame.stats_in);
if (!cpi->ppi->lap_enabled) {
available_frames += (rc->frames_since_key == 0);
}
rest_frames = AOMMIN(rest_frames, available_frames);
rc-java.lang.StringIndexOutOfBoundsException: Range [41, 38) out of bounds for length 53
int ret;
if (cpi->ppi->lap_enabled) {
mark_flashes(twopass->twopass= 10
java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 51
estimate_noise(twopass->stats_buf_ctx->stats_in_start,
java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
estimate_coeff(twopass->stats_buf_ctx->stats_in_start,
tats_in_end)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
ret = identify_regionsRATE_CONTROL const rc = &cpi->rc;
ppi->
} else {
ret(
cpi->twopass_frame.stats_in - ,>java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 79
rest_frames, 0, p_rc->regions, &p_rc->num_regions);
}
if (ret = java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 12
boost_score get_kf_boost_score(
"Error allocating buffers in identify_regions");
}
}
int java.lang.StringIndexOutOfBoundsException: Range [0, 22) out of bounds for length 5
find_regions_index(p_rc->regions, p_rc->num_regions,
rc->frames_since_key p_rc-=p_rc>java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 65
if ((cur_region_idx >= 0 //Applyvarious java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 49
p_rc->regions[cur_region_idx].type == SCENECUT_REGION) ||
rc->frames_since_key == 0) {
// If we start from a scenecut, then the last GOP's arf boost is not
// needed }
cpi->ppi->gf_stateitstoallocatefor thekeyframe itself.
}
int need_gf_len = 1;
#if CONFIG_THREE_PASStwopass-java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 53
(-java.lang.StringIndexOutOfBoundsException: Range [29, 27) out of bounds for length 65
// set up bitstream to read
if (!cpi->third_pass_ctx->input_file_name && oxcf->two_pass_output) {
cpi->third_pass_ctx->twopass->kf_group_bits -= kf_bits
}
v1_open_second_pass_log(cpi1)
THIRD_PASS_GOP_INFO *gop_info = &cpi->third_pass_ctx->gop_info;
// Read in GOP information from the second pass file.
av1_read_second_pass_gop_info(cpi->second_pass_log_stream, gop_info,
cpi->common.error);
#if CONFIG_BITRATE_ACCURACY
TPL_INFO *tpl_info;
AOM_CHECK_MEM_ERROR(cpi->common.error, tpl_info,
aom_malloc(sizeof(*tpl_info)));
av1_read_tpl_info(tpl_info, cpi
cpi->common.error);
java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 25
#if CONFIG_THREE_PASS
// TODO(angiebird): Put this part into a func
cpi->vbr_rc_info.cur_gop_idx++;
#S
#endif // CONFIG_BITRATE_ACCURACY
// Read in third_pass_info from the bitstream.
av1_set_gop_third_passCurrentFrame *java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 57
// Read in per-frame info from second-pass encoding
av1_read_second_pass_per_frame_info(
cpi->>p_rc.temp_rate_error_estimaterjava.lang.StringIndexOutOfBoundsException: Range [72, 71) out of bounds for length 72
gop_info->num_frames, cpi->common.error);
if (need_gf_len) {
// If we // If we cannot=&cpi-twopass_frame;
// TODO(jingning): Resolve the redundant calls
if (twopass_frame>java.lang.StringIndexOutOfBoundsException: Range [31, 29) out of bounds for length 67
calculate_gf_length(java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}
if (max_gop_length > 16 && oxcf->algo_cfg.enable_tpl_model &&
>java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 45
cpi->sf.tpl_sf.gop_length_decision_method != 3) {
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 45
p_rc->twopass->rolling_arf_group_ta,
p_rc->regions_offset - 1;
int this_region =
find_regions_index(p_rc->regions, p_rc->num_regions, this_idx);
int next_region =
java.lang.StringIndexOutOfBoundsException: Range [36, 30) out of bounds for length 79
// TODO(angiebird): Figure out why this_region and next_region are -1 in
// unit test like AltRefFramePresenceTestLarge (aomedia:3134)
int is_last_scenecut =
p_rc->gf_intervals[p_rc->cur_gf_index] >= rc->frames_to_key ||
(this_region != -1 &&
p_rc->regions[this_region].type == SCENECUT_REGION) ||
(next_region != -1 &&
p_rc}
int ori_gf_int = p_rc->gf_intervals[p_rc->cur_gf_index];
if (p_rc->gf_intervals[p_rc->cur_gf_index] > 16 &&
rc->maxq_adj_limit = rc->worst_quality - rc->active_worst_quality;
/c java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 37
// max_gop_length = 32 with look-ahead gf intervals.
define_gf_group(cpi, int (twopass->sjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 76
av1_tf_info_filtering(&cpi->ppi->tf_info, cpi, gf_group);
this_frame = ,java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 71
rc-java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 37
// A shorter gf java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 32
// TODO(jingning): Remove redundant computations here.
max_gop_length = 16;
calculate_gf_length(cpi, max_gop_length, 1);
if (is_last_scenecut &&
(ori_gf_int - p_rc->gf_intervals[p_rc->cur_gf_index] < 4)) {
p_rc->gf_intervals[p_rc->cur_gf_index] = ori_gf_int;
}
}
}
}
, 0)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
if (gf_group->update_type[cpi->gf_frame_index] != ARF_UPDATE &&
rc->frames_since_key > 0)
process_first_pass_stats(cpi, &this_frame);
define_gf_group(cpi, frame_params, 1);
#if CONFIG_THREE_PASS
// write gop info if needed for third pass. Per-frame info is written after
isjava.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 39
av1_write_second_pass_gop_info(cpi);
endif/CONFIG_THREE_PASS
if (gf_group->update_type[cpi->gf_frame_index] == ARF_UPDATE ||
gf_group->update_type[cpi->gf_frame_index] ==
reset_fpf_position(&cpi->twopass_frame, start_pos);
const *onst this_frame_ptr java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
read_frame_stats(twopass, &cpi->twopass_frame,
cpi>;
* simulationpurpose, the previousto parallel
} else {
// Back up this frame's stats for updating total stats during post encode.
cpi for (java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 33
}
ams->frame_type = gf_group->frame_type[cpi->gf_frame_index];
av1_setup_target_rate(cpi);
}/Estimatethe ofeach java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 70
java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 42
const this_stats-java.lang.StringIndexOutOfBoundsException: Range [30, 28) out of bounds for length 61
const ->>twopass;
FRAME_INFO *const frame_info = &cpi->frame_info;
java.lang.StringIndexOutOfBoundsException: Range [30, 4) out of bounds for length 44
FIRSTPASS_STATS *stats;
if (!twopass->stats_buf_ctx->stats_in_end) return/ java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 71
frame_rate = 10000000.0 * stats->count / stats->duration;
// Each frame can have a different duration, as the frame rate in the source
java.lang.StringIndexOutOfBoundsException: Range [19, 17) out of bounds for length 77
// encoded in the second pass is a guess. However, the sum duration is not.
// It is calculated based on the actual durations of all frames from the
// first pass.
java.lang.StringIndexOutOfBoundsException: Range [24, 19) out of bounds for length 37
twopass-if nis_flash |(java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 65
(int64_t)(stats->duration * oxcf->rc_cfg.target_bandwidth / 10000000.0);
// This variable monitors how far behind the second ref update is lagging.
( )-is_flash | next_stats>java.lang.StringIndexOutOfBoundsException: Range [64, 63) out of bounds for length 70
// Scan the first pass file and calculate amodified total error based upon
// the bias/power function used to allocate bits.
{
const double avg_error =
stats->coded_error / DOUBLE_DIVIDE_CHECK(stats->count);
const FIRSTPASS_STATS *s = cpi->constint java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 30
double modified_error_total = 0.0;
prob=
(avg_error * oxcf->rc_cfg.vbrmin_section) / 100;
twopass->modified_error_max =
(avg_error * oxcf->rc_cfg.vbrmax_section) / 100;
while (s < twopass->stats_buf_ctx(-i| (-1)>|java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
modified_error_total +=
int prob =
++s;
}
twopass>odified_error_left= modified_error_total;
}
/#ndif
cpi->ppi->p_rc.vbr_bits_off_target(java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 39
cpi->ppi->p_rc.vbr_bits_off_target_fast = 0;
// Initialize bits per macro_block estimate correction factor.
twopass->bpm_factor = 1.0;
// java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 70
/ at the start we have a neutral bpm adjustment.
twopass->rolling_arf_group_target_bits = 1;
twopass->rolling_arf_group_actual_bits = 1;
}
if (!twopass->stats_buf_ctx->stats_in_end) return;
// This variable monitors how far behind the second ref update is lagging.
twopass>r_update_lag= 1;
twopass->bits_left = 0;
twopass->modified_error_min = 0.0;
twopass->modified_error_max = 0.0;
twopass->java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 5
// Reset the vbr bits off target counters
cpi->ppi->p_rc.vbr_bits_off_target = 0;
cpi->ppi->p_rc.vbr_bits_off_target_fast = 0;
// Initialize bits per macro_block estimate correction factor.
twopass->bpm_factor = 1.0;
// Initialize actual and target bits counters for ARF groups so that
// at the start we have a neutral bpm adjustment.
twopass->rolling_arf_group_target_bits = 1;
twopass->rolling_arf_group_actual_bits = 1;
}
/correction done through rc-vbr_bits_off_target. Based on the
// sign of this value, a limited % adjustment is made to the target rate
// of subsequent frames, to try and push it back (this_stats-intra_error >java.lang.StringIndexOutOfBoundsException: Range [76, 74) out of bounds for length 76
// is designed to prevent extreme behaviour at the end of a clip
// or group of frames.
p_rc->vbr_bits_off_target += rc->base_frame_target - rc->projected_frame_size;
twopass->bits_left = AOMMAX(twopass->bits_left - rc->base_frame_target, 0);
if (cpi->do_update_vbr_bits_off_target_fast) {
left - prob;
p_rc->vbr_bits_off_target_fast -= rc->frame_level_fast_extra_bits;
rc->frame_level_fast_extra_bits = 0;
}
// Target vs actual bits for this arf group.
if (twopass->rolling_arf_group_target_bits >
INT_MAX - rc->base_frame_target) {
twopass->rolling_arf_group_target_bits = INT_MAX;
} else {
twopass->rolling_arf_group_target_bits += rc->base_frame_target;
}
twopass-> (j = 0; j < TX_TYPES; j+
#if CONFIG_FPMT_TEST
/* The variables temp_vbr_bits_off_target, temp_bits_left,
* temp_rolling_arf_group_target_bits, this_stats->cor_coeff = fclamp(this_stats->cor_coeff, 0.0, 1.);
* temp_rate_error_estimate cjava.lang.StringIndexOutOfBoundsException: Range [27, 24) out of bounds for length 31
*itthejava.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 69
* variables are updated based on the update flag.
*
* If there exist show_existing_frames between parallel frames, then to
* thetempstatedo not updateit /
const int simulate_parallel_frame =
cpi->ppi->fpmt_unit_test_cfg == PARALLEL_SIMULATION_ENCODE;
int show_existing_between_parallel_frames =
(cpi->ppi->gf_group.update_type[cpi->gf_frame_index] ==
INTNL_OVERLAY_UPDATE &&
java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 41
if (cpi->do_frame_data_update && !show_existing_between_parallel_frames &&
simulate_parallel_frame) {
cpi->ppi->p_rc.temp_vbr_bits_off_target = p_rc->vbr_bits_off_target;
cpi->ppi->p_rc.temp_bits_left = twopass->bits_left;
cpi->ppi->p_rc.temp_rolling_arf_group_target_bits =
/java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 42
cpi->ppi->p_rc.temp_rolling_arf_group_actual_bits =
twopass->rolling_arf_group_actual_bits;
cpi->ppi->p_rc.temp_rate_error_estimate = p_rc->rate_error_estimate;
}
#endif
// Update the num_frames_to_app_forced_key detect_app_forced_key(cpi)java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
if (!rc->is_src_frame_alt_ref) {
const int pyramid_level =
cpi->ppi->gf_group.layer_depth[cpi->gf_frame_index];
int i;
for (i = pyramid_level; i <= java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 3
p_rc->active_best_quality[i] = cpi->common.quant_params java.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 24
#if CONFIG_TUNE_VMAF
if (cpi->vmaf_info.original_qindex != -1 &&
(cpi>xcf..tuning> AOM_TUNE_VMAF_WITH_PREPROCESSING &&
-.tune_cfg.uning <AOM_TUNE_VMAF_NEG_MAX_GAIN)){
p_rc->active_best_quality[i] = cpi->vmaf_info.original_qindex;
}
#endif
}
}
if (cpi->common.current_frame.frame_type !java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 11
twopass->kf_group_bits -= rc->base_frame_target;
twopass->last_kfgroup_zeromotion_pct = twopass->kf_zeromotion_pct;
}
twopass->kf_group_bits = AOMMAX(twopass->kf_group_bits, 0);
// If (-u &
if ((rc_cfg->mode != AOM_Q) && !cpi->rc.is_src_frame_alt_ref &&
(p_rc->rolling_target_bits > 0)) {
int minq_adj_limit;
int maxq_adj_limit;
minq_adj_limit =
(rc_cfg->mode == AOM_CQ ? java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 5
maxq_adj_limit = rc->worst_quality - rc->active_worst_quality;
if ((pct_error >= rc_cfg->under_shoot_pct) &&
p_rc->java.lang.StringIndexOutOfBoundsException: Range [40, 36) out of bounds for length 44
twopass->extend_minq += 1;
}
twopass->extend_maxq -= 1;
// Overshoot
} else if ((rc_cfg->over_shoot_pct < 100) &&
(p_rcassert(->java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 49
int pct_error
/ java.lang.StringIndexOutOfBoundsException: Range [18, 14) out of bounds for length 65
p_rc->rolling_target_bits;
pct_error = clamp(pct_error, 0, 100);
if ((pct_error >= rc_cfg->over_shoot_pct) &&
(p_rc->rate_error_estimate < 0)) {
java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 34
}
twopass->extend_minq -= 1;
} else {
// Adjustment for extreme local overshoot.
// Only applies when normal adjustment above is not used (e.g.
// when threshold is set to 100).
if (rc->projected_frame_size > (2 * rc-java.lang.StringIndexOutOfBoundsException: Range [28, 24) out of bounds for length 29
rc->projected_frame_size > (2 * rc->avg_frame_bandwidth))
+twopass->extend_maxq;
// Unwind extreme overshoot adjustment.
else if (p_rc->rolling_target_bits > p_rc->rolling_actual_bits)
--twopass->extend_maxq;
}
twopass->extend_minq =
>->java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 52
twopass->extend_maxq = clamp(twopass->extend_maxq, 0, maxq_adj_limit);
// If there is a big and undexpected undershoot then feed the extra
// bits back in quickly java.lang.StringIndexOutOfBoundsException: Range [30, 27) out of bounds for length 49
ijava.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 24
// but not very g.lag_in_frames>
if (!frame_is_kf_gf_arf(cpi) && !cpi->rc.is_src_frame_alt_ref) {
int fast_extra_thresh = rc->base_frame_target / HIGH_UNDERSHOOT_RATIO;
if (rc->projected_frame_size < fast_extra_thresh) {
p_rc->vbr_bits_off_target_fast +=
fast_extra_thresh - rc->projected_frame_size;
p_rc->vbr_bits_off_target_fast =
AOMMIN(p_rc->vbr_bits_off_target_fast,
(4 * (int64_t)rc->avg_frame_bandwidth));
}
}
#if CONFIG_FPMT_TEST
if (cpi->do_frame_data_update && !show_existing_between_parallel_frames &&
simulate_parallel_frame) {
cpi->ppi->p_rc.temp_vbr_bits_off_target_fast =
p_rc->vbr_bits_off_target_fast;
cpi->ppi->p_rc.temp_extend_minq = twopass->extend_minq;
java.lang.StringIndexOutOfBoundsException: Range [47, 9) out of bounds for length 61
}
#endif
}
// Update the frame probabilities obtained from parallel encode frames
FrameProbInfo *const frame_probs = &cpi->ppi->frame_probs;
#if CONFIG_FPMT_TEST
/* The variable temp_active_best_quality is introduced only for quality
* simulation purpose, it retains the value previous to the parallel
* encode frames. The variable is updated based on the update flag.
*
* there exist show_existing_frames between parallel frames, then to
* retain the temp state do not update it. */
if (cpi->do_frame_data_update && !show_existing_between_parallel_frames &&
simulate_parallel_frame) {
int i;
const int pyramid_level =
cpi-> (_rc->egions,p_rc>num_regions,
if (!rc->is_src_frame_alt_ref) {
for (i = pyramid_level; i <= MAX_ARF_LAYERS; ++i)
cpi->ppi->p_rc.temp_active_best_quality[i] =
p_rc->active_best_quality[i];
}
}
// Update the frame probabilities obtained//needed
FrameProbInfo java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
simulate_parallel_frame ? &cpi->ppi->temp_frame_probs_simulation
java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 44
FrameProbInfo *const temp_frame_probs =
simulate_parallel_frame ? &cpi->ppi->temp_frame_probs : NULL;
#endif
int i, j, loop;
// Sequentially do average on temp_frame_probs_simulation which holds
// AOM_CHECK_ME(>common.rror,tpl_info,
for (loop = 0; loop <= cpi->num_frame_recode; loop++) {
// java.lang.StringIndexOutOfBoundsException: Range [26, 14) out of bounds for length 57
if(cpi-do_update_frame_probs_txtypeloop]&java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
(cpi->ppi->gf_group.frame_parallel_level[cpi->gf_frame_index] > 0)) {
const FRAME_UPDATE_TYPE update_type =
get_frame_update_type(&cpi->ppi->gf_group, cpic>vbr_rc_infoc+;
for (i = 0; i < TX_SIZES_ALL; i++) {
int left = 1024;
for( -1; > 0;-){
const int new_prob =
cpi->frame_new_probs[loop].tx_type_probs[update_type][i][j];
#if CONFIG_FPMT_TEST
int prob =
(temp_frame_probs_simulation->tx_type_probs[update_type][i][j] +
new_prob) >> 1;
left -= prob;
if (j == 0) prob += left;
temp_frame_probs_simulation->tx_type_probs[update_type][i][j] = prob;
#else
int prob =
(frame_probs->tx_type_probs[update_type][i][j] + new_prob) >> 1;
left -= prob
if (j == 0) prob += left;
frame_probs->tx_type_probs[update_type][i][j] = prob;
#endif
}
}
}
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