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
16extern "C" {
17#endif
18
19struct AV1_COMP;
20struct 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_pcnt_second_ref;
46 double avg_new_mv_count;
47 double avg_wavelet_energy;
48 double avg_raw_err_stdev;
49 int non_zero_stdev_count;
51} GF_GROUP_STATS;
52
56 typedef struct {
58 double frame_err;
59 double frame_coded_error;
60 double frame_sr_coded_error;
62} GF_FRAME_STATS;
65void av1_init_second_pass(struct AV1_COMP *cpi);
66
67void av1_init_single_pass_lap(AV1_COMP *cpi);
68
89void av1_get_second_pass_params(struct AV1_COMP *cpi,
90 struct EncodeFrameParams *const frame_params,
91 unsigned int frame_flags);
92
106void av1_twopass_postencode_update(struct AV1_COMP *cpi);
107
127void av1_gop_bit_allocation(const AV1_COMP *cpi, RATE_CONTROL *const rc,
128 GF_GROUP *gf_group, int is_key_frame, int use_arf,
129 int64_t gf_group_bits);
130
131#ifdef __cplusplus
132} // extern "C"
133#endif
134
135#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, unsigned int frame_flags)
Main per frame entry point for second pass of two pass encode.
Definition: pass2_strategy.c:3607
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:2623
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:3962
GF_FRAME_STATS
accumulated stats and features for a frame
Definition: pass2_strategy.h:56
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:344
RATE_CONTROL
Rate Control parameters and status.
Definition: ratectrl.h:121