AOMedia AV1 Codec
pass2_strategy.h
1 /*
2  * Copyright (c) 2019, Alliance for Open Media. All rights reserved
3  *
4  * This source code is subject to the terms of the BSD 2 Clause License and
5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6  * was not distributed with this source code in the LICENSE file, you can
7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8  * Media Patent License 1.0 was not distributed with this source code in the
9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10  */
11 
12 #ifndef AOM_AV1_ENCODER_PASS2_STRATEGY_H_
13 #define AOM_AV1_ENCODER_PASS2_STRATEGY_H_
14 
15 #ifdef __cplusplus
16 extern "C" {
17 #endif
18 
19 struct AV1_COMP;
20 struct EncodeFrameParams;
21 
22 #include "av1/encoder/encoder.h"
23 
27 typedef struct {
29  double gf_group_err;
30  double gf_group_raw_error;
31  double gf_group_skip_pct;
32  double gf_group_inactive_zone_rows;
33 
34  double mv_ratio_accumulator;
35  double decay_accumulator;
36  double zero_motion_accumulator;
37  double loop_decay_rate;
38  double last_loop_decay_rate;
39  double this_frame_mv_in_out;
40  double mv_in_out_accumulator;
41  double abs_mv_in_out_accumulator;
42 
43  double avg_sr_coded_error;
44  double avg_pcnt_second_ref;
45  double avg_new_mv_count;
46  double avg_wavelet_energy;
47  double avg_raw_err_stdev;
48  int non_zero_stdev_count;
51 
55 typedef struct {
57  double frame_err;
58  double frame_coded_error;
59  double frame_sr_coded_error;
64 void av1_init_second_pass(struct AV1_COMP *cpi);
65 
66 void av1_init_single_pass_lap(AV1_COMP *cpi);
67 
88 void av1_get_second_pass_params(struct AV1_COMP *cpi,
89  struct EncodeFrameParams *const frame_params,
90  unsigned int frame_flags);
91 
105 void av1_twopass_postencode_update(struct AV1_COMP *cpi);
106 
126 void av1_gop_bit_allocation(const AV1_COMP *cpi, RATE_CONTROL *const rc,
127  GF_GROUP *gf_group, int is_key_frame, int use_arf,
128  int64_t gf_group_bits);
129 
130 int av1_calc_arf_boost(const TWO_PASS *twopass,
131  const TWO_PASS_FRAME *twopass_frame,
132  const PRIMARY_RATE_CONTROL *p_rc, FRAME_INFO *frame_info,
133  int offset, int f_frames, int b_frames,
134  int *num_fpstats_used, int *num_fpstats_required,
135  int project_gfu_boost);
136 
137 void av1_mark_flashes(FIRSTPASS_STATS *first_stats,
138  FIRSTPASS_STATS *last_stats);
139 void av1_estimate_noise(FIRSTPASS_STATS *first_stats,
140  FIRSTPASS_STATS *last_stats);
141 void av1_estimate_coeff(FIRSTPASS_STATS *first_stats,
142  FIRSTPASS_STATS *last_stats);
143 
144 #ifdef __cplusplus
145 } // extern "C"
146 #endif
147 
148 #endif // AOM_AV1_ENCODER_PASS2_STRATEGY_H_
Declares top-level encoder structures and functions.
void av1_get_second_pass_params(struct AV1_COMP *cpi, struct EncodeFrameParams *const frame_params, unsigned int frame_flags)
Main per frame entry point for second pass of two pass encode.
Definition: pass2_strategy.c:3685
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)
Distributes bits to frames in a group.
Definition: pass2_strategy.c:2677
void av1_twopass_postencode_update(struct AV1_COMP *cpi)
Adjustments to two pass and rate control after each frame.
Definition: pass2_strategy.c:4101
Top level encoder structure.
Definition: encoder.h:2872
contains per-frame encoding parameters decided upon by av1_encode_strategy() and passed down to av1_e...
Definition: encoder.h:3673
The stucture of acummulated frame stats in the first pass.
Definition: firstpass.h:43
accumulated stats and features for a frame
Definition: pass2_strategy.h:55
accumulated stats and features in a gf group
Definition: pass2_strategy.h:27
Data related to the current GF/ARF group and the individual frames within the group.
Definition: firstpass.h:354
Primary Rate Control parameters and status.
Definition: ratectrl.h:288
Rate Control parameters and status.
Definition: ratectrl.h:134
Frame level Two pass status and control data.
Definition: firstpass.h:473
Two pass status and control data.
Definition: firstpass.h:431