aq_cyclicrefresh.h

/*
 * 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 AOM_AV1_ENCODER_AQ_CYCLICREFRESH_H_
#define AOM_AV1_ENCODER_AQ_CYCLICREFRESH_H_
 
#include "av1/common/blockd.h"
#include "av1/encoder/block.h"
#include "av1/encoder/tokenize.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
// The segment ids used in cyclic refresh: from base (no boost) to increasing
// boost (higher delta-qp).
#define CR_SEGMENT_ID_BASE 0
#define CR_SEGMENT_ID_BOOST1 1
#define CR_SEGMENT_ID_BOOST2 2
 
// Maximum rate target ratio for setting segment delta-qp.
#define CR_MAX_RATE_TARGET_RATIO 4.0
 
struct CYCLIC_REFRESH {
  int percent_refresh;
 
  int percent_refresh_adjustment;
 
  int max_qdelta_perc;
  int sb_index;
  int last_sb_index;
  int time_for_refresh;
  int target_num_seg_blocks;
  int actual_num_seg1_blocks;
  int actual_num_seg2_blocks;
  int rdmult;
  int8_t *map;
  int64_t thresh_rate_sb;
  int64_t thresh_dist_sb;
  int16_t motion_thresh;
  double rate_ratio_qdelta;
 
  double rate_ratio_qdelta_adjustment;
 
  int rate_boost_fac;
 
  int qindex_delta[3];
  int apply_cyclic_refresh;
  int skip_over4x4;
  int counter_encode_maxq_scene_change;
  int use_block_sad_scene_det;
};
 
struct AV1_COMP;
 
typedef struct CYCLIC_REFRESH CYCLIC_REFRESH;
 
CYCLIC_REFRESH *av1_cyclic_refresh_alloc(int mi_rows, int mi_cols);
 
void av1_cyclic_refresh_free(CYCLIC_REFRESH *cr);
 
int av1_cyclic_refresh_estimate_bits_at_q(const struct AV1_COMP *cpi,
                                          double correction_factor);
 
int av1_cyclic_refresh_rc_bits_per_mb(const struct AV1_COMP *cpi, int i,
                                      double correction_factor);
 
void av1_cyclic_reset_segment_skip(const struct AV1_COMP *cpi,
                                   MACROBLOCK *const x, int mi_row, int mi_col,
                                   BLOCK_SIZE bsize, RUN_TYPE dry_run);
 
void av1_cyclic_refresh_update_segment(const struct AV1_COMP *cpi,
                                       MACROBLOCK *const x, int mi_row,
                                       int mi_col, BLOCK_SIZE bsize,
                                       int64_t rate, int64_t dist, int skip,
                                       RUN_TYPE dry_run);
 
void av1_init_cyclic_refresh_counters(MACROBLOCK *const x);
 
void av1_accumulate_cyclic_refresh_counters(
    CYCLIC_REFRESH *const cyclic_refresh, const MACROBLOCK *const x);
 
void av1_cyclic_refresh_set_golden_update(struct AV1_COMP *const cpi);
 
void av1_cyclic_refresh_update_parameters(struct AV1_COMP *const cpi);
 
void av1_cyclic_refresh_setup(struct AV1_COMP *const cpi);
 
int av1_cyclic_refresh_get_rdmult(const CYCLIC_REFRESH *cr);
 
int av1_cyclic_refresh_disable_lf_cdef(struct AV1_COMP *const cpi);
 
static inline int cyclic_refresh_segment_id_boosted(int segment_id) {
  return segment_id == CR_SEGMENT_ID_BOOST1 ||
         segment_id == CR_SEGMENT_ID_BOOST2;
}
 
static inline int cyclic_refresh_segment_id(int segment_id) {
  if (segment_id == CR_SEGMENT_ID_BOOST1)
    return CR_SEGMENT_ID_BOOST1;
  else if (segment_id == CR_SEGMENT_ID_BOOST2)
    return CR_SEGMENT_ID_BOOST2;
  else
    return CR_SEGMENT_ID_BASE;
}
 
#ifdef __cplusplus
}  // extern "C"
#endif
 
#endif  // AOM_AV1_ENCODER_AQ_CYCLICREFRESH_H_