AOMedia AV1 Codec: av1/encoder/pass2_strategy.h Source File

| 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
28 typedef struct {
30 double gf_group_err;
31 double gf_group_raw_error;
32 double gf_group_skip_pct;
33 double gf_group_inactive_zone_rows;
34
35 double mv_ratio_accumulator;
36 double decay_accumulator;
37 double zero_motion_accumulator;
38 double loop_decay_rate;
39 double last_loop_decay_rate;
40 double this_frame_mv_in_out;
41 double mv_in_out_accumulator;
42 double abs_mv_in_out_accumulator;
43
44 double avg_sr_coded_error;
45 double avg_tr_coded_error;
46 double avg_pcnt_second_ref;
47 double avg_pcnt_third_ref;
48 double avg_pcnt_third_ref_nolast;
49 double avg_new_mv_count;
50 double avg_wavelet_energy;
51 double avg_raw_err_stdev;
52 int non_zero_stdev_count;
54 } GF_GROUP_STATS;
55
59 typedef struct {
61 double frame_err;
62 double frame_coded_error;
63 double frame_sr_coded_error;
64 double frame_tr_coded_error;
66 } GF_FRAME_STATS;
69 void av1_init_second_pass(struct AV1_COMP *cpi);
70
71 void av1_init_single_pass_lap(AV1_COMP *cpi);
72
94 void av1_get_second_pass_params(struct AV1_COMP *cpi,
95 struct EncodeFrameParams *const frame_params,
96 const EncodeFrameInput *const frame_input,
97 unsigned int frame_flags);
98
112 void av1_twopass_postencode_update(struct AV1_COMP *cpi);
113
133 void av1_gop_bit_allocation(const AV1_COMP *cpi, RATE_CONTROL *const rc,
134 GF_GROUP *gf_group, int is_key_frame, int use_arf,
135 int64_t gf_group_bits);
136
137 #ifdef __cplusplus
138 } // extern "C"
139 #endif
140
141 #endif // AOM_AV1_ENCODER_PASS2_STRATEGY_H_
encoder.h
Declares top-level encoder structures and functions.
av1_get_second_pass_params
void av1_get_second_pass_params(struct AV1_COMP *cpi, struct EncodeFrameParams *const frame_params, const EncodeFrameInput *const frame_input, unsigned int frame_flags)
Main per frame entry point for second pass of two pass encode.
Definition: pass2_strategy.c:3505
av1_gop_bit_allocation
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:2648
av1_twopass_postencode_update
void av1_twopass_postencode_update(struct AV1_COMP *cpi)
Adjustments to two pass and rate control after each frame.
Definition: pass2_strategy.c:3865
AV1_COMP
Top level encoder structure.
Definition: encoder.h:2095
EncodeFrameInput
Input frames and last input frame.
Definition: encoder.h:2714
EncodeFrameParams
contains per-frame encoding parameters decided upon by av1_encode_strategy() and passed down to av1_e...
Definition: encoder.h:2726
GF_FRAME_STATS
accumulated stats and features for a frame
Definition: pass2_strategy.h:59
GF_GROUP_STATS
accumulated stats and features in a gf group
Definition: pass2_strategy.h:28
GF_GROUP
Data related to the current GF/ARF group and the individual frames within the group.
Definition: firstpass.h:171
RATE_CONTROL
Rate Control parameters and status.
Definition: ratectrl.h:118