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;
154 int last_q[FRAME_TYPES];
179 double rate_correction_factors[RATE_FACTOR_LEVELS];
199 int gf_intervals[MAX_NUM_GF_INTERVALS];
208 REGIONS regions[MAX_FIRSTPASS_ANALYSIS_FRAMES];
209 double cor_coeff[MAX_FIRSTPASS_ANALYSIS_FRAMES];
211 int frames_till_regions_update;
215 int static_scene_max_gf_interval;
216 int baseline_gf_interval;
217 int constrained_gf_group;
224 int frames_since_key;
225 int this_key_frame_forced;
226 int next_key_frame_forced;
227 int is_src_frame_alt_ref;
231 uint64_t avg_source_sad;
232 uint64_t prev_avg_source_sad;
234 int avg_frame_bandwidth;
235 int min_frame_bandwidth;
236 int max_frame_bandwidth;
237 int prev_avg_frame_bandwidth;
242 int avg_frame_qindex[FRAME_TYPES];
246 int64_t buffer_level;
247 int64_t bits_off_target;
248 int64_t vbr_bits_off_target;
249 int64_t vbr_bits_off_target_fast;
251 int decimation_factor;
252 int decimation_count;
254 int rolling_target_bits;
255 int rolling_actual_bits;
257 int rate_error_estimate;
259 int64_t total_actual_bits;
260 int64_t total_target_bits;
295 float_t arf_boost_factor;
309 int active_best_quality[MAX_ARF_LAYERS + 1];
315 int num_stats_used_for_kf_boost;
317 int num_stats_used_for_gfu_boost;
319 int num_stats_required_for_gfu_boost;
321 int enable_scenecut_detection;
322 int use_arf_in_this_kf_group;
324 int avg_frame_low_motion;
327 RESIZE_STATE resize_state;
329 int resize_buffer_underflow;
342 int av1_estimate_bits_at_q(FRAME_TYPE frame_kind,
int q,
int mbs,
344 const int is_screen_content_type);
348 void av1_rc_init_minq_luts(
void);
350 int av1_rc_get_default_min_gf_interval(
int width,
int height,
double framerate);
354 int av1_rc_get_default_max_gf_interval(
double framerate,
int min_gf_interval);
381 void av1_rc_postencode_update(
struct AV1_COMP *cpi, uint64_t bytes_used);
383 void av1_rc_postencode_update_drop_frame(
struct AV1_COMP *cpi);
404 int av1_rc_drop_frame(
struct AV1_COMP *cpi);
407 void av1_rc_compute_frame_size_bounds(
const struct AV1_COMP *cpi,
408 int this_frame_target,
409 int *frame_under_shoot_limit,
410 int *frame_over_shoot_limit);
428 int width,
int height,
int gf_index,
429 int *bottom_index,
int *top_index);
444 int active_best_quality,
int active_worst_quality,
445 int width,
int height);
449 int av1_rc_bits_per_mb(FRAME_TYPE
frame_type,
int qindex,
451 const int is_screen_content_type);
454 int av1_rc_clamp_iframe_target_size(
const struct AV1_COMP *
const cpi,
456 int av1_rc_clamp_pframe_target_size(
const struct AV1_COMP *
const cpi,
457 int target, uint8_t frame_update_type);
464 int best_qindex,
int worst_qindex);
468 int av1_compute_qdelta(
const RATE_CONTROL *rc,
double qstart,
double qtarget,
474 int qindex,
double rate_target_ratio,
475 const int is_screen_content_type,
478 int av1_frame_type_qdelta(
const struct AV1_COMP *cpi,
int q);
480 void av1_rc_update_framerate(
struct AV1_COMP *cpi,
int width,
int height);
482 void av1_rc_set_gf_interval_range(
const struct AV1_COMP *
const cpi,
485 void av1_set_target_rate(
struct AV1_COMP *cpi,
int width,
int height);
487 int av1_resize_one_pass_cbr(
struct AV1_COMP *cpi);
489 void av1_rc_set_frame_target(
struct AV1_COMP *cpi,
int target,
int width,
508 const struct AV1_COMP *
const cpi, FRAME_UPDATE_TYPE frame_update_type);
534 const struct AV1_COMP *cpi, FRAME_UPDATE_TYPE frame_update_type);
566 unsigned int frame_flags);
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_rc_pick_q_and_bounds(const struct AV1_COMP *cpi, RATE_CONTROL *rc, 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_encodedframe_overshoot_cbr(struct AV1_COMP *cpi, int *q)
Increase q on expected encoder overshoot, for CBR mode.
Definition: ratectrl.c:2649
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:2167
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:2547
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:541
Main encoder configuration data structure.
Definition: encoder.h:791
enum aom_enc_pass pass
Definition: encoder.h:916
Top level encoder structure.
Definition: encoder.h:2042
contains per-frame encoding parameters decided upon by av1_encode_strategy() and passed down to av1_e...
Definition: encoder.h:2675
FRAME_TYPE frame_type
Definition: encoder.h:2683
Rate Control parameters and status.
Definition: ratectrl.h:118
int best_quality
Definition: ratectrl.h:270
int64_t starting_buffer_level
Definition: ratectrl.h:275
int intervals_till_gf_calculate_due
Definition: ratectrl.h:194
int64_t gf_group_bits
Definition: ratectrl.h:134
int this_frame_target
Definition: ratectrl.h:129
int frames_to_key
Definition: ratectrl.h:222
int base_frame_target
Definition: ratectrl.h:125
int projected_frame_size
Definition: ratectrl.h:139
int worst_quality
Definition: ratectrl.h:266
int arf_q
Definition: ratectrl.h:301
int cur_gf_index
Definition: ratectrl.h:204
int sb64_target_rate
Definition: ratectrl.h:149
int last_kf_qindex
Definition: ratectrl.h:164
int gfu_boost
Definition: ratectrl.h:169
int coefficient_size
Definition: ratectrl.h:144
int64_t maximum_buffer_size
Definition: ratectrl.h:283
int64_t optimal_buffer_level
Definition: ratectrl.h:279
int active_worst_quality
Definition: ratectrl.h:305
int last_boosted_qindex
Definition: ratectrl.h:159
int frames_since_golden
Definition: ratectrl.h:184
int kf_boost
Definition: ratectrl.h:173
int frames_till_gf_update_due
Definition: ratectrl.h:189