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https://github.com/ultravideo/uvg266.git
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c438bb4a19
Adds command line option --fast-residual-cost=<limit>. When QP is below the limit, estimates the cost of coding the residual coefficients from the sum of absolute coefficients. Skipping CABAC is not worth it with high QPs because there are fewer coefficients so CABAC is not as slow.
77 lines
3.1 KiB
C
77 lines
3.1 KiB
C
#ifndef RDO_H_
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#define RDO_H_
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/*****************************************************************************
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* This file is part of Kvazaar HEVC encoder.
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*
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* Copyright (C) 2013-2015 Tampere University of Technology and others (see
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* COPYING file).
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*
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* Kvazaar is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version.
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*
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* Kvazaar is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with Kvazaar. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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/**
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* \ingroup Compression
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* \file
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* Rate-Distortion Optimization related functionality.
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*/
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#include "cabac.h"
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#include "cu.h"
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#include "encoderstate.h"
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#include "global.h" // IWYU pragma: keep
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#include "search_inter.h"
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extern const uint32_t kvz_g_go_rice_range[5];
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extern const uint32_t kvz_g_go_rice_prefix_len[5];
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void kvz_rdoq(encoder_state_t *state, coeff_t *coef, coeff_t *dest_coeff, int32_t width,
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int32_t height, int8_t type, int8_t scan_mode, int8_t block_type, int8_t tr_depth);
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uint32_t kvz_get_coeff_cost(const encoder_state_t * const state,
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const coeff_t *coeff,
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int32_t width,
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int32_t type,
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int8_t scan_mode);
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int32_t kvz_get_ic_rate(encoder_state_t *state, uint32_t abs_level, uint16_t ctx_num_one, uint16_t ctx_num_abs,
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uint16_t abs_go_rice, uint32_t c1_idx, uint32_t c2_idx, int8_t type);
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uint32_t kvz_get_coded_level(encoder_state_t * state, double* coded_cost, double* coded_cost0, double* coded_cost_sig,
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int32_t level_double, uint32_t max_abs_level,
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uint16_t ctx_num_sig, uint16_t ctx_num_one, uint16_t ctx_num_abs,
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uint16_t abs_go_rice,
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uint32_t c1_idx, uint32_t c2_idx,
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int32_t q_bits,double temp, int8_t last, int8_t type);
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kvz_mvd_cost_func kvz_calc_mvd_cost_cabac;
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uint32_t kvz_get_mvd_coding_cost_cabac(const encoder_state_t *state,
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const cabac_data_t* cabac,
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int32_t mvd_hor,
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int32_t mvd_ver);
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// Number of fixed point fractional bits used in the fractional bit table.
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#define CTX_FRAC_BITS 15
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#define CTX_FRAC_ONE_BIT (1 << CTX_FRAC_BITS)
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#define CTX_FRAC_HALF_BIT (1 << (CTX_FRAC_BITS - 1))
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extern const uint32_t kvz_entropy_bits[128];
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#define CTX_ENTROPY_BITS(ctx, val) kvz_entropy_bits[(ctx)->uc_state ^ (val)]
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// Floating point fractional bits, derived from kvz_entropy_bits
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extern const float kvz_f_entropy_bits[128];
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#define CTX_ENTROPY_FBITS(ctx, val) kvz_f_entropy_bits[(ctx)->uc_state ^ (val)]
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#endif
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