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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AV1_ENCODER_FIRSTPASS_H_
#define AV1_ENCODER_FIRSTPASS_H_
#include "av1/encoder/lookahead.h"
#include "av1/encoder/ratectrl.h"
#ifdef __cplusplus
extern "C" {
#endif
#if CONFIG_FP_MB_STATS
#define FPMB_DCINTRA_MASK 0x01
#define FPMB_MOTION_ZERO_MASK 0x02
#define FPMB_MOTION_LEFT_MASK 0x04
#define FPMB_MOTION_RIGHT_MASK 0x08
#define FPMB_MOTION_UP_MASK 0x10
#define FPMB_MOTION_DOWN_MASK 0x20
#define FPMB_ERROR_SMALL_MASK 0x40
#define FPMB_ERROR_LARGE_MASK 0x80
#define FPMB_ERROR_SMALL_TH 2000
#define FPMB_ERROR_LARGE_TH 48000
typedef struct {
uint8_t *mb_stats_start;
uint8_t *mb_stats_end;
} FIRSTPASS_MB_STATS;
#endif
#if CONFIG_EXT_REFS
// Length of the bi-predictive frame group (BFG)
// NOTE: Currently each BFG contains one backward ref (BWF) frame plus a certain
// number of bi-predictive frames.
#define BFG_INTERVAL 2
// The maximum number of extra ALT_REF's
// NOTE: This number cannot be greater than 2 or the reference frame buffer will
// overflow.
#define MAX_EXT_ARFS 2
#define MIN_EXT_ARF_INTERVAL 4
#endif // CONFIG_EXT_REFS
#define VLOW_MOTION_THRESHOLD 950
typedef struct {
double frame;
double weight;
double intra_error;
double coded_error;
double sr_coded_error;
double pcnt_inter;
double pcnt_motion;
double pcnt_second_ref;
double pcnt_neutral;
double intra_skip_pct;
double inactive_zone_rows; // Image mask rows top and bottom.
double inactive_zone_cols; // Image mask columns at left and right edges.
double MVr;
double mvr_abs;
double MVc;
double mvc_abs;
double MVrv;
double MVcv;
double mv_in_out_count;
double new_mv_count;
double duration;
double count;
} FIRSTPASS_STATS;
typedef enum {
KF_UPDATE = 0,
LF_UPDATE = 1,
GF_UPDATE = 2,
ARF_UPDATE = 3,
OVERLAY_UPDATE = 4,
#if CONFIG_EXT_REFS
BRF_UPDATE = 5, // Backward Reference Frame
LAST_BIPRED_UPDATE = 6, // Last Bi-predictive Frame
BIPRED_UPDATE = 7, // Bi-predictive Frame, but not the last one
INTNL_OVERLAY_UPDATE = 8, // Internal Overlay Frame
FRAME_UPDATE_TYPES = 9
#else
FRAME_UPDATE_TYPES = 5
#endif // CONFIG_EXT_REFS
} FRAME_UPDATE_TYPE;
#define FC_ANIMATION_THRESH 0.15
typedef enum {
FC_NORMAL = 0,
FC_GRAPHICS_ANIMATION = 1,
FRAME_CONTENT_TYPES = 2
} FRAME_CONTENT_TYPE;
typedef struct {
unsigned char index;
RATE_FACTOR_LEVEL rf_level[(MAX_LAG_BUFFERS * 2) + 1];
FRAME_UPDATE_TYPE update_type[(MAX_LAG_BUFFERS * 2) + 1];
unsigned char arf_src_offset[(MAX_LAG_BUFFERS * 2) + 1];
unsigned char arf_update_idx[(MAX_LAG_BUFFERS * 2) + 1];
unsigned char arf_ref_idx[(MAX_LAG_BUFFERS * 2) + 1];
#if CONFIG_EXT_REFS
unsigned char brf_src_offset[(MAX_LAG_BUFFERS * 2) + 1];
unsigned char bidir_pred_enabled[(MAX_LAG_BUFFERS * 2) + 1];
#endif // CONFIG_EXT_REFS
int bit_allocation[(MAX_LAG_BUFFERS * 2) + 1];
} GF_GROUP;
typedef struct {
unsigned int section_intra_rating;
FIRSTPASS_STATS total_stats;
FIRSTPASS_STATS this_frame_stats;
const FIRSTPASS_STATS *stats_in;
const FIRSTPASS_STATS *stats_in_start;
const FIRSTPASS_STATS *stats_in_end;
FIRSTPASS_STATS total_left_stats;
int first_pass_done;
int64_t bits_left;
double modified_error_min;
double modified_error_max;
double modified_error_left;
double mb_av_energy;
#if CONFIG_FP_MB_STATS
uint8_t *frame_mb_stats_buf;
uint8_t *this_frame_mb_stats;
FIRSTPASS_MB_STATS firstpass_mb_stats;
#endif
// An indication of the content type of the current frame
FRAME_CONTENT_TYPE fr_content_type;
// Projected total bits available for a key frame group of frames
int64_t kf_group_bits;
// Error score of frames still to be coded in kf group
int64_t kf_group_error_left;
// The fraction for a kf groups total bits allocated to the inter frames
double kfgroup_inter_fraction;
int sr_update_lag;
int kf_zeromotion_pct;
int last_kfgroup_zeromotion_pct;
int gf_zeromotion_pct;
int active_worst_quality;
int baseline_active_worst_quality;
int extend_minq;
int extend_maxq;
int extend_minq_fast;
GF_GROUP gf_group;
} TWO_PASS;
struct AV1_COMP;
void av1_init_first_pass(struct AV1_COMP *cpi);
void av1_rc_get_first_pass_params(struct AV1_COMP *cpi);
void av1_first_pass(struct AV1_COMP *cpi, const struct lookahead_entry *source);
void av1_end_first_pass(struct AV1_COMP *cpi);
void av1_init_second_pass(struct AV1_COMP *cpi);
void av1_rc_get_second_pass_params(struct AV1_COMP *cpi);
void av1_twopass_postencode_update(struct AV1_COMP *cpi);
// Post encode update of the rate control parameters for 2-pass
void av1_twopass_postencode_update(struct AV1_COMP *cpi);
void av1_init_subsampling(struct AV1_COMP *cpi);
void av1_calculate_coded_size(struct AV1_COMP *cpi, int *scaled_frame_width,
int *scaled_frame_height);
#if CONFIG_EXT_REFS
static INLINE int get_number_of_extra_arfs(int interval, int arf_pending) {
if (arf_pending && MAX_EXT_ARFS > 0)
return interval >= MIN_EXT_ARF_INTERVAL * (MAX_EXT_ARFS + 1)
? MAX_EXT_ARFS
: interval >= MIN_EXT_ARF_INTERVAL * MAX_EXT_ARFS
? MAX_EXT_ARFS - 1
: 0;
else
return 0;
}
#endif // CONFIG_EXT_REFS
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AV1_ENCODER_FIRSTPASS_H_
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