12#ifndef AOM_AV1_ENCODER_RC_UTILS_H_
13#define AOM_AV1_ENCODER_RC_UTILS_H_
16#include "aom_dsp/psnr.h"
22static AOM_INLINE
void check_reset_rc_flag(
AV1_COMP *cpi) {
26 (
unsigned int)cpi->
svc.number_spatial_layers) {
28 av1_svc_check_reset_layer_rc_flag(cpi);
30 if (rc->avg_frame_bandwidth > (3 * rc->prev_avg_frame_bandwidth >> 1) ||
31 rc->avg_frame_bandwidth < (rc->prev_avg_frame_bandwidth >> 1)) {
41static AOM_INLINE
void set_primary_rc_buffer_sizes(
const AV1EncoderConfig *oxcf,
53 (optimal == 0) ? bandwidth / 8 : optimal * bandwidth / 1000;
55 (maximum == 0) ? bandwidth / 8 : maximum * bandwidth / 1000;
64static AOM_INLINE
void config_target_level(
AV1_COMP *
const cpi,
65 AV1_LEVEL target_level,
int tier) {
68 TileConfig *
const tile_cfg = &oxcf->tile_cfg;
72 const BITSTREAM_PROFILE profile = seq_params->profile;
73 const double level_bitrate_limit =
74 av1_get_max_bitrate_for_level(target_level, tier, profile);
75 const int64_t max_bitrate = (int64_t)(level_bitrate_limit * 0.70);
91 int max_tiles, max_tile_cols;
92 av1_get_max_tiles_for_level(target_level, &max_tiles, &max_tile_cols);
93 while (tile_cfg->tile_columns > 0 &&
94 (1 << tile_cfg->tile_columns) > max_tile_cols) {
95 --tile_cfg->tile_columns;
97 const int tile_cols = (1 << tile_cfg->tile_columns);
98 while (tile_cfg->tile_rows > 0 &&
99 tile_cols * (1 << tile_cfg->tile_rows) > max_tiles) {
100 --tile_cfg->tile_rows;
104 const int still_picture = seq_params->still_picture;
105 const double min_cr =
106 av1_get_min_cr_for_level(target_level, tier, still_picture);
107 rc_cfg->
min_cr = AOMMAX(rc_cfg->
min_cr, (
unsigned int)(min_cr * 100));
110#if !CONFIG_REALTIME_ONLY
129 int low_limit,
int q,
int maxq,
133 const int frame_is_kfgfarf = frame_is_kf_gf_arf(cpi);
134 int force_recode = 0;
156static AOM_INLINE
double av1_get_gfu_boost_projection_factor(
double min_factor,
159 double factor = sqrt((
double)frame_count);
160 factor = AOMMIN(factor, max_factor);
161 factor = AOMMAX(factor, min_factor);
162 factor = (200.0 + 10.0 * factor);
166static AOM_INLINE
int get_gfu_boost_from_r0_lap(
double min_factor,
167 double max_factor,
double r0,
169 double factor = av1_get_gfu_boost_projection_factor(min_factor, max_factor,
171 const int boost = (int)rint(factor / r0);
175static AOM_INLINE
double av1_get_kf_boost_projection_factor(
int frame_count) {
176 double factor = sqrt((
double)frame_count);
177 factor = AOMMIN(factor, 10.0);
178 factor = AOMMAX(factor, 4.0);
179 factor = (75.0 + 14.0 * factor);
183static AOM_INLINE
int get_regulated_q_overshoot(
AV1_COMP *
const cpi,
184#
if CONFIG_FRAME_PARALLEL_ENCODE
187 int q_low,
int q_high,
194#
if CONFIG_FRAME_PARALLEL_ENCODE
204 while (q_regulated < q_low && retries < 10) {
206#
if CONFIG_FRAME_PARALLEL_ENCODE
218static AOM_INLINE
int get_regulated_q_undershoot(
AV1_COMP *
const cpi,
219#
if CONFIG_FRAME_PARALLEL_ENCODE
222 int q_high,
int top_index,
228#
if CONFIG_FRAME_PARALLEL_ENCODE
236 while (q_regulated > q_high && retries < 10) {
238#
if CONFIG_FRAME_PARALLEL_ENCODE
272 AV1_COMP *
const cpi,
int *
const loop,
int *
const q,
int *
const q_low,
273 int *
const q_high,
const int top_index,
const int bottom_index,
274 int *
const undershoot_seen,
int *
const overshoot_seen,
275 int *
const low_cr_seen,
const int loop_count) {
283 if (rc->is_src_frame_alt_ref &&
287 const int min_cr = rc_cfg->
min_cr;
289 const double compression_ratio =
291 const double target_cr = min_cr / 100.0;
292 if (compression_ratio < target_cr) {
294 if (*q < rc->worst_quality) {
295 const double cr_ratio = target_cr / compression_ratio;
296 const int projected_q = AOMMAX(*q + 1, (
int)(*q * cr_ratio * cr_ratio));
297 *q = AOMMIN(AOMMIN(projected_q, *q + 32), rc->
worst_quality);
298 *q_low = AOMMAX(*q, *q_low);
299 *q_high = AOMMAX(*q, *q_high);
303 if (*low_cr_seen)
return;
308 const int last_q = *q;
309 int frame_over_shoot_limit = 0, frame_under_shoot_limit = 0;
311 &frame_under_shoot_limit,
312 &frame_over_shoot_limit);
313 if (frame_over_shoot_limit == 0) frame_over_shoot_limit = 1;
316 p_rc->this_key_frame_forced &&
320 const int64_t low_err_target = cpi->
ambient_err >> 1;
322#if CONFIG_AV1_HIGHBITDEPTH
336 if ((kf_err > high_err_target &&
338 (kf_err > low_err_target &&
341 *q_high = AOMMAX(*q - 1, *q_low);
344 *q = (int)((*q * high_err_target) / kf_err);
345 *q = AOMMIN(*q, (*q_high + *q_low) >> 1);
346 }
else if (kf_err < low_err_target &&
350 *q_low = AOMMIN(*q + 1, *q_high);
353 *q = (int)((*q * low_err_target) / kf_err);
354 *q = AOMMIN(*q, (*q_high + *q_low + 1) >> 1);
358 *q = clamp(*q, *q_low, *q_high);
359 *loop = (*q != last_q);
363 if (
recode_loop_test(cpi, frame_over_shoot_limit, frame_under_shoot_limit, *q,
364 AOMMAX(*q_high, top_index), bottom_index)) {
375 const double q_val_high_current =
376 av1_convert_qindex_to_q(*q_high, cm->
seq_params->bit_depth);
377 const double q_val_high_new =
380 *q_high = av1_find_qindex(q_val_high_new, cm->
seq_params->bit_depth,
385 *q_low = AOMMIN(*q + 1, *q_high);
387 if (*undershoot_seen || loop_count > 2 ||
388 (loop_count == 2 && !frame_is_intra_only(cm))) {
390#
if CONFIG_FRAME_PARALLEL_ENCODE
395 *q = (*q_high + *q_low + 1) / 2;
396 }
else if (loop_count == 2 && frame_is_intra_only(cm)) {
397 const int q_mid = (*q_high + *q_low + 1) / 2;
398 const int q_regulated =
399 get_regulated_q_overshoot(cpi,
400#
if CONFIG_FRAME_PARALLEL_ENCODE
403 *q_low, *q_high, top_index, bottom_index);
406 *q = (q_mid + q_regulated + 1) / 2;
409 get_regulated_q_overshoot(cpi,
410#
if CONFIG_FRAME_PARALLEL_ENCODE
413 *q_low, *q_high, top_index, bottom_index);
419 *q_high = AOMMAX(*q - 1, *q_low);
421 if (*overshoot_seen || loop_count > 2 ||
422 (loop_count == 2 && !frame_is_intra_only(cm))) {
424#
if CONFIG_FRAME_PARALLEL_ENCODE
428 *q = (*q_high + *q_low) / 2;
429 }
else if (loop_count == 2 && frame_is_intra_only(cm)) {
430 const int q_mid = (*q_high + *q_low) / 2;
431 const int q_regulated =
432 get_regulated_q_undershoot(cpi,
433#
if CONFIG_FRAME_PARALLEL_ENCODE
436 *q_high, top_index, bottom_index);
439 *q = (q_mid + q_regulated) / 2;
445 if (rc_cfg->
mode ==
AOM_CQ && q_regulated < *q_low) {
449 *q = get_regulated_q_undershoot(cpi,
450#
if CONFIG_FRAME_PARALLEL_ENCODE
453 *q_high, top_index, bottom_index);
464 *undershoot_seen = 1;
468 *q = clamp(*q, *q_low, *q_high);
471 *loop = (*q != last_q);
Declares top-level encoder structures and functions.
@ AOM_CQ
Definition: aom_encoder.h:177
@ AOM_Q
Definition: aom_encoder.h:178
static int recode_loop_test(AV1_COMP *cpi, int high_limit, int low_limit, int q, int maxq, int minq)
Function to test for conditions that indicate we should loop back and recode a frame.
Definition: rc_utils.h:128
static void recode_loop_update_q(AV1_COMP *const cpi, int *const loop, int *const q, int *const q_low, int *const q_high, const int top_index, const int bottom_index, int *const undershoot_seen, int *const overshoot_seen, int *const low_cr_seen, const int loop_count)
Called after encode_with_recode_loop() has just encoded a frame. This function works out whether we u...
Definition: rc_utils.h:271
int av1_rc_regulate_q(const struct AV1_COMP *cpi, int target_bits_per_frame, int active_best_quality, int active_worst_quality, int width, int height)
Estimates q to achieve a target bits per frame.
void av1_rc_update_rate_correction_factors(AV1_COMP *cpi, int width, int height)
Updates the rate correction factor linking Q to output bits.
Definition: ratectrl.c:624
Top level common structure used by both encoder and decoder.
Definition: av1_common_int.h:751
SequenceHeader * seq_params
Definition: av1_common_int.h:977
int width
Definition: av1_common_int.h:776
RefCntBuffer * cur_frame
Definition: av1_common_int.h:833
CurrentFrame current_frame
Definition: av1_common_int.h:755
int height
Definition: av1_common_int.h:777
Main encoder configuration data structure.
Definition: encoder.h:854
RateControlCfg rc_cfg
Definition: encoder.h:876
Top level encoder structure.
Definition: encoder.h:2557
RATE_CONTROL rc
Definition: encoder.h:2738
int64_t ambient_err
Definition: encoder.h:2707
SPEED_FEATURES sf
Definition: encoder.h:2758
AV1EncoderConfig oxcf
Definition: encoder.h:2605
AV1_COMMON common
Definition: encoder.h:2600
AV1_PRIMARY * ppi
Definition: encoder.h:2561
YV12_BUFFER_CONFIG * source
Definition: encoder.h:2618
SVC svc
Definition: encoder.h:3032
Top level primary encoder structure.
Definition: encoder.h:2290
TWO_PASS twopass
Definition: encoder.h:2414
PRIMARY_RATE_CONTROL p_rc
Definition: encoder.h:2419
int use_svc
Definition: encoder.h:2436
The stucture of acummulated frame stats in the first pass.
Definition: firstpass.h:41
double duration
Definition: firstpass.h:142
RECODE_LOOP_TYPE recode_loop
Definition: speed_features.h:331
Primary Rate Control parameters and status.
Definition: ratectrl.h:237
int64_t bits_off_target
Definition: ratectrl.h:394
int64_t maximum_buffer_size
Definition: ratectrl.h:294
int64_t starting_buffer_level
Definition: ratectrl.h:284
int64_t buffer_level
Definition: ratectrl.h:373
int64_t optimal_buffer_level
Definition: ratectrl.h:289
Rate Control parameters and status.
Definition: ratectrl.h:118
int best_quality
Definition: ratectrl.h:199
int this_frame_target
Definition: ratectrl.h:129
int projected_frame_size
Definition: ratectrl.h:134
int worst_quality
Definition: ratectrl.h:195
Encoder rate control configuration parameters.
Definition: encoder.h:476
int worst_allowed_q
Definition: encoder.h:546
int over_shoot_pct
Definition: encoder.h:541
int64_t maximum_buffer_size_ms
Definition: encoder.h:495
unsigned int min_cr
Definition: encoder.h:525
enum aom_rc_mode mode
Definition: encoder.h:560
int64_t starting_buffer_level_ms
Definition: encoder.h:485
int64_t target_bandwidth
Definition: encoder.h:500
int64_t optimal_buffer_level_ms
Definition: encoder.h:490
int cq_level
Definition: encoder.h:555
HIGH_LEVEL_SPEED_FEATURES hl_sf
Definition: speed_features.h:1334
Two pass status and control data.
Definition: firstpass.h:412