/* * 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.
*/
// The fractional part of rd_thresh factor is stored with 5 bits. The maximum // factor that we allow is two, which is stored as 2 ** (5+1) = 64 #define RD_THRESH_FAC_FRAC_BITS (5) #define RD_THRESH_FAC_FRAC_VAL (1 << (RD_THRESH_FAC_FRAC_BITS)) #define RD_THRESH_MAX_FACT ((RD_THRESH_FAC_FRAC_VAL) << 1) #define RD_THRESH_LOG_DEC_FACTOR (4) #define RD_THRESH_INC (1)
// Factor to weigh the rate for switchable interp filters. #define SWITCHABLE_INTERP_RATE_FACTOR 1
// Macros for common video resolutions: width x height // For example, 720p represents video resolution of 1280x720 pixels. #define RESOLUTION_288P 352 * 288 #define RESOLUTION_360P 640 * 360 #define RESOLUTION_480P 640 * 480 #define RESOLUTION_720P 1280 * 720 #define RESOLUTION_1080P 1920 * 1080 #define RESOLUTION_1440P 2560 * 1440 #define RESOLUTION_4K 3840 * 2160
staticinlineint mode_offset(const PREDICTION_MODE mode) { if (mode >= NEARESTMV) { return INTER_OFFSET(mode);
} else { switch (mode) { case DC_PRED: return 0; case V_PRED: return 1; case H_PRED: return 2; case SMOOTH_PRED: return 3; default: assert(0); return -1;
}
}
}
enum { // Default initialization when we are not using winner mode framework. e.g. // intrabc
DEFAULT_EVAL = 0, // Initialization for selecting winner mode
MODE_EVAL, // Initialization for winner mode evaluation
WINNER_MODE_EVAL, // All mode evaluation types
MODE_EVAL_TYPES,
} UENUM1BYTE(MODE_EVAL_TYPE);
typedefstruct RD_OPT { // Thresh_mult is used to set a threshold for the rd score. A higher value // means that we will accept the best mode so far more often. This number // is used in combination with the current block size, and thresh_freq_fact // to pick a threshold. int thresh_mult[MAX_MODES];
int threshes[MAX_SEGMENTS][BLOCK_SIZES_ALL][MAX_MODES];
int RDMULT;
double r0;
} RD_OPT;
staticinlinevoid av1_init_rd_stats(RD_STATS *rd_stats) { #if CONFIG_RD_DEBUG int plane; #endif
rd_stats->rate = 0;
rd_stats->dist = 0;
rd_stats->rdcost = 0;
rd_stats->sse = 0;
rd_stats->skip_txfm = 1;
rd_stats->zero_rate = 0; #if CONFIG_RD_DEBUG // This may run into problems when monochrome video is // encoded, as there will only be 1 plane for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
rd_stats->txb_coeff_cost[plane] = 0;
} #endif
}
staticinlinevoid av1_invalid_rd_stats(RD_STATS *rd_stats) { #if CONFIG_RD_DEBUG int plane; #endif
rd_stats->rate = INT_MAX;
rd_stats->dist = INT64_MAX;
rd_stats->rdcost = INT64_MAX;
rd_stats->sse = INT64_MAX;
rd_stats->skip_txfm = 0;
rd_stats->zero_rate = 0; #if CONFIG_RD_DEBUG // This may run into problems when monochrome video is // encoded, as there will only be 1 plane for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
rd_stats->txb_coeff_cost[plane] = INT_MAX;
} #endif
}
staticinlinevoid av1_merge_rd_stats(RD_STATS *rd_stats_dst, const RD_STATS *rd_stats_src) { if (rd_stats_dst->rate == INT_MAX || rd_stats_src->rate == INT_MAX) { // If rd_stats_dst or rd_stats_src has invalid rate, we will make // rd_stats_dst invalid.
av1_invalid_rd_stats(rd_stats_dst); return;
}
rd_stats_dst->rate = (int)AOMMIN(
((int64_t)rd_stats_dst->rate + (int64_t)rd_stats_src->rate), INT_MAX); if (!rd_stats_dst->zero_rate)
rd_stats_dst->zero_rate = rd_stats_src->zero_rate;
rd_stats_dst->dist += rd_stats_src->dist; if (rd_stats_dst->sse < INT64_MAX && rd_stats_src->sse < INT64_MAX) {
rd_stats_dst->sse += rd_stats_src->sse;
}
rd_stats_dst->skip_txfm &= rd_stats_src->skip_txfm; #if CONFIG_RD_DEBUG // This may run into problems when monochrome video is // encoded, as there will only be 1 plane for (int plane = 0; plane < MAX_MB_PLANE; ++plane) {
rd_stats_dst->txb_coeff_cost[plane] += rd_stats_src->txb_coeff_cost[plane];
} #endif
}
staticinlinevoid av1_accumulate_rd_stats(RD_STATS *rd_stats, int64_t dist, int rate, int skip_txfm, int64_t sse, int zero_rate) {
assert(rd_stats->rate != INT_MAX && rate != INT_MAX);
rd_stats->rate += rate; if (!rd_stats->zero_rate) rd_stats->zero_rate = zero_rate;
rd_stats->dist += dist;
rd_stats->skip_txfm &= skip_txfm;
rd_stats->sse += sse;
}
/*!\brief Compute rdmult based on q index and frame update type * * \param[in] bit_depth bit depth * \param[in] update_type frame update type * \param[in] qindex q index * \param[in] tuning visual tuning metric * * \return rdmult
*/ int av1_compute_rd_mult_based_on_qindex(aom_bit_depth_t bit_depth,
FRAME_UPDATE_TYPE update_type, int qindex, aom_tune_metric tuning);
// Sets the multiplier to convert mv cost to l1 error during motion search. void av1_set_sad_per_bit(conststruct AV1_COMP *cpi, int *sadperbit, int qindex);
void av1_model_rd_from_var_lapndz(int64_t var, unsignedint n, unsignedint qstep, int *rate, int64_t *dist);
void av1_mv_pred(conststruct AV1_COMP *cpi, MACROBLOCK *x,
uint8_t *ref_y_buffer, int ref_y_stride, int ref_frame,
BLOCK_SIZE block_size);
// Sets the multiplier to convert mv cost to l2 error during motion search. staticinlinevoid av1_set_error_per_bit(int *errorperbit, int rdmult) {
*errorperbit = AOMMAX(rdmult >> RD_EPB_SHIFT, 1);
}
// Get the threshold for R-D optimization of coefficients depending upon mode // decision/winner mode processing staticinlinevoid get_rd_opt_coeff_thresh( const uint32_t (*const coeff_opt_threshold)[2],
TxfmSearchParams *txfm_params, int enable_winner_mode_for_coeff_opt, int is_winner_mode) { if (!enable_winner_mode_for_coeff_opt) { // Default initialization of threshold
txfm_params->coeff_opt_thresholds[0] = coeff_opt_threshold[DEFAULT_EVAL][0];
txfm_params->coeff_opt_thresholds[1] = coeff_opt_threshold[DEFAULT_EVAL][1]; return;
} // TODO(any): Experiment with coeff_opt_dist_threshold values when // enable_winner_mode_for_coeff_opt is ON // TODO(any): Skip the winner mode processing for blocks with lower residual // energy as R-D optimization of coefficients would have been enabled during // mode decision
// Use conservative threshold during mode decision and perform R-D // optimization of coeffs always for winner modes if (is_winner_mode) {
txfm_params->coeff_opt_thresholds[0] =
coeff_opt_threshold[WINNER_MODE_EVAL][0];
txfm_params->coeff_opt_thresholds[1] =
coeff_opt_threshold[WINNER_MODE_EVAL][1];
} else {
txfm_params->coeff_opt_thresholds[0] = coeff_opt_threshold[MODE_EVAL][0];
txfm_params->coeff_opt_thresholds[1] = coeff_opt_threshold[MODE_EVAL][1];
}
}
// Used to reset the state of mb rd hash information staticinlinevoid reset_mb_rd_record(MB_RD_RECORD *const mb_rd_record) { if (!mb_rd_record) return;
// Reset the state for use_mb_rd_hash
mb_rd_record->num = mb_rd_record->index_start = 0;
}
#if !CONFIG_REALTIME_ONLY int av1_get_adaptive_rdmult(conststruct AV1_COMP *cpi, double beta); #endif
int av1_get_deltaq_offset(aom_bit_depth_t bit_depth, int qindex, double beta);
/*!\brief Adjust current superblock's q_index based on delta q resolution * * \param[in] delta_q_res delta q resolution * \param[in] prev_qindex previous superblock's q index * \param[in] curr_qindex current superblock's q index * * \return the current superblock's adjusted q_index
*/ int av1_adjust_q_from_delta_q_res(int delta_q_res, int prev_qindex, int curr_qindex);
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