12 #ifndef AOM_AV1_ENCODER_RATECTRL_H_
13 #define AOM_AV1_ENCODER_RATECTRL_H_
16 #include "aom/aom_integer.h"
18 #include "aom_ports/mem.h"
20 #include "av1/common/av1_common_int.h"
21 #include "av1/common/blockd.h"
30 #define BPER_MB_NORMBITS 9
33 #define USE_ALTREF_FOR_ONE_PASS 1
38 #define STATIC_KF_GROUP_THRESH 99
39 #define STATIC_KF_GROUP_FLOAT_THRESH 0.99
42 #define MAX_STATIC_GF_GROUP_LENGTH 250
44 #define MIN_GF_INTERVAL 4
45 #define MAX_GF_INTERVAL 32
46 #define FIXED_GF_INTERVAL 16
47 #define MAX_GF_LENGTH_LAP 16
49 #define MAX_NUM_GF_INTERVALS 15
51 #define MAX_ARF_LAYERS 6
57 uint8_t superres_denom;
66 } UENUM1BYTE(RATE_FACTOR_LEVEL);
77 } UENUM1BYTE(FRAME_UPDATE_TYPE);
83 } UENUM1BYTE(REFBUF_STATE);
93 typedef enum { ORIG = 0, THREE_QUARTER = 1, ONE_HALF = 2 } RESIZE_STATE;
95 #define MAX_FIRSTPASS_ANALYSIS_FRAMES 150
96 typedef enum region_types {
103 typedef struct regions {
106 double avg_noise_var;
107 double avg_cor_coeff;
108 double avg_sr_fr_ratio;
109 double avg_intra_err;
110 double avg_coded_err;
164 int static_scene_max_gf_interval;
171 int frames_since_key;
172 int frames_to_fwd_kf;
173 int is_src_frame_alt_ref;
177 uint64_t avg_source_sad;
178 uint64_t prev_avg_source_sad;
180 int avg_frame_bandwidth;
181 int min_frame_bandwidth;
182 int max_frame_bandwidth;
183 int prev_avg_frame_bandwidth;
188 int decimation_factor;
189 int decimation_count;
220 int avg_frame_low_motion;
223 RESIZE_STATE resize_state;
225 int resize_buffer_underflow;
227 #if CONFIG_FRAME_PARALLEL_ENCODE
228 int frame_level_fast_extra_bits;
229 double frame_level_rate_correction_factors[RATE_FACTOR_LEVELS];
258 int gf_intervals[MAX_NUM_GF_INTERVALS];
268 REGIONS regions[MAX_FIRSTPASS_ANALYSIS_FRAMES];
270 int frames_till_regions_update;
272 int baseline_gf_interval;
274 int constrained_gf_group;
276 int this_key_frame_forced;
278 int next_key_frame_forced;
302 float_t arf_boost_factor;
307 int num_stats_used_for_kf_boost;
310 int num_stats_used_for_gfu_boost;
313 int num_stats_required_for_gfu_boost;
315 int enable_scenecut_detection;
317 int use_arf_in_this_kf_group;
332 int avg_frame_qindex[FRAME_TYPES];
337 int active_best_quality[MAX_ARF_LAYERS + 1];
352 int last_q[FRAME_TYPES];
358 double rate_correction_factors[RATE_FACTOR_LEVELS];
417 int av1_estimate_bits_at_q(FRAME_TYPE frame_kind,
int q,
int mbs,
419 const int is_screen_content_type);
423 void av1_rc_init_minq_luts(
void);
425 int av1_rc_get_default_min_gf_interval(
int width,
int height,
double framerate);
429 int av1_rc_get_default_max_gf_interval(
double framerate,
int min_gf_interval);
455 void av1_rc_postencode_update(
struct AV1_COMP *cpi, uint64_t bytes_used);
457 void av1_rc_postencode_update_drop_frame(
struct AV1_COMP *cpi);
473 #
if CONFIG_FRAME_PARALLEL_ENCODE
476 int width,
int height);
481 int av1_rc_drop_frame(
struct AV1_COMP *cpi);
484 void av1_rc_compute_frame_size_bounds(
const struct AV1_COMP *cpi,
485 int this_frame_target,
486 int *frame_under_shoot_limit,
487 int *frame_over_shoot_limit);
504 int gf_index,
int *bottom_index,
int *top_index);
519 int active_best_quality,
int active_worst_quality,
520 int width,
int height);
524 int av1_rc_bits_per_mb(FRAME_TYPE
frame_type,
int qindex,
526 const int is_screen_content_type);
529 int av1_rc_clamp_iframe_target_size(
const struct AV1_COMP *
const cpi,
531 int av1_rc_clamp_pframe_target_size(
const struct AV1_COMP *
const cpi,
532 int target, uint8_t frame_update_type);
539 int best_qindex,
int worst_qindex);
543 int av1_compute_qdelta(
const RATE_CONTROL *rc,
double qstart,
double qtarget,
549 int qindex,
double rate_target_ratio,
550 const int is_screen_content_type,
553 int av1_frame_type_qdelta(
const struct AV1_COMP *cpi,
int q);
555 void av1_rc_update_framerate(
struct AV1_COMP *cpi,
int width,
int height);
557 void av1_rc_set_gf_interval_range(
const struct AV1_COMP *
const cpi,
560 void av1_set_target_rate(
struct AV1_COMP *cpi,
int width,
int height);
562 int av1_resize_one_pass_cbr(
struct AV1_COMP *cpi);
564 void av1_rc_set_frame_target(
struct AV1_COMP *cpi,
int target,
int width,
583 const struct AV1_COMP *
const cpi, FRAME_UPDATE_TYPE frame_update_type);
609 const struct AV1_COMP *cpi, FRAME_UPDATE_TYPE frame_update_type);
641 unsigned int frame_flags);
659 #if !CONFIG_REALTIME_ONLY
672 void av1_q_mode_compute_gop_q_indices(
int gf_frame_index,
int base_q_index,
673 double arf_qstep_ratio,
690 int av1_q_mode_get_q_index(
int base_q_index,
int gf_update_type,
691 int gf_pyramid_level,
int arf_q);
702 int av1_get_arf_q_index(
int base_q_index,
int gfu_boost,
int bit_depth,
703 double arf_boost_factor);
705 #if !CONFIG_REALTIME_ONLY
714 int av1_get_arf_q_index_q_mode(
struct AV1_COMP *cpi,
715 struct TplDepFrame *tpl_frame);
Describes the codec algorithm interface to applications.
enum aom_bit_depth aom_bit_depth_t
Bit depth for codecThis enumeration determines the bit depth of the codec.
int av1_calc_pframe_target_size_one_pass_vbr(const struct AV1_COMP *const cpi, FRAME_UPDATE_TYPE frame_update_type)
Calculates how many bits to use for a P frame in one pass vbr.
int av1_encodedframe_overshoot_cbr(struct AV1_COMP *cpi, int *q)
Increase q on expected encoder overshoot, for CBR mode.
Definition: ratectrl.c:2829
int av1_calc_pframe_target_size_one_pass_cbr(const struct AV1_COMP *cpi, FRAME_UPDATE_TYPE frame_update_type)
Calculates how many bits to use for a P frame in one pass cbr.
void av1_set_reference_structure_one_pass_rt(AV1_COMP *cpi, int gf_update)
Setup the reference prediction structure for 1 pass real-time.
Definition: ratectrl.c:2317
int av1_rc_pick_q_and_bounds(const struct AV1_COMP *cpi, int width, int height, int gf_index, int *bottom_index, int *top_index)
Picks q and q bounds given the rate control parameters in cpi->rc.
int av1_calc_iframe_target_size_one_pass_cbr(const struct AV1_COMP *cpi)
Calculates how many bits to use for an i frame in one pass cbr.
int av1_calc_iframe_target_size_one_pass_vbr(const struct AV1_COMP *const cpi)
Calculates how many bits to use for an i frame in one pass vbr.
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_get_one_pass_rt_params(struct AV1_COMP *cpi, struct EncodeFrameParams *const frame_params, unsigned int frame_flags)
Setup the rate control parameters for 1 pass real-time mode.
Definition: ratectrl.c:2717
void av1_rc_update_rate_correction_factors(struct AV1_COMP *cpi, int width, int height)
Updates the rate correction factor linking Q to output bits.
Definition: ratectrl.c:624
Main encoder configuration data structure.
Definition: encoder.h:854
Top level encoder structure.
Definition: encoder.h:2557
contains per-frame encoding parameters decided upon by av1_encode_strategy() and passed down to av1_e...
Definition: encoder.h:3200
FRAME_TYPE frame_type
Definition: encoder.h:3208
Data related to the current GF/ARF group and the individual frames within the group.
Definition: firstpass.h:344
Primary Rate Control parameters and status.
Definition: ratectrl.h:237
int64_t bits_off_target
Definition: ratectrl.h:394
int rate_error_estimate
Definition: ratectrl.h:378
double avg_q
Definition: ratectrl.h:347
int64_t maximum_buffer_size
Definition: ratectrl.h:294
int kf_boost
Definition: ratectrl.h:248
int64_t starting_buffer_level
Definition: ratectrl.h:284
int64_t total_actual_bits
Definition: ratectrl.h:363
int64_t vbr_bits_off_target_fast
Definition: ratectrl.h:388
int rolling_target_bits
Definition: ratectrl.h:399
int64_t buffer_level
Definition: ratectrl.h:373
int gfu_boost
Definition: ratectrl.h:253
int64_t optimal_buffer_level
Definition: ratectrl.h:289
int arf_q
Definition: ratectrl.h:299
int rolling_actual_bits
Definition: ratectrl.h:405
int last_boosted_qindex
Definition: ratectrl.h:342
int cur_gf_index
Definition: ratectrl.h:263
int64_t total_target_bits
Definition: ratectrl.h:368
int last_kf_qindex
Definition: ratectrl.h:327
int64_t gf_group_bits
Definition: ratectrl.h:243
int64_t vbr_bits_off_target
Definition: ratectrl.h:383
Rate Control parameters and status.
Definition: ratectrl.h:118
int best_quality
Definition: ratectrl.h:199
int intervals_till_gf_calculate_due
Definition: ratectrl.h:159
int this_frame_target
Definition: ratectrl.h:129
int frames_to_key
Definition: ratectrl.h:169
int base_frame_target
Definition: ratectrl.h:125
int projected_frame_size
Definition: ratectrl.h:134
int worst_quality
Definition: ratectrl.h:195
int sb64_target_rate
Definition: ratectrl.h:144
int coefficient_size
Definition: ratectrl.h:139
int active_worst_quality
Definition: ratectrl.h:216
int frames_since_golden
Definition: ratectrl.h:149
int frames_till_gf_update_due
Definition: ratectrl.h:154