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101 lines
3.9 KiB
C
101 lines
3.9 KiB
C
#ifndef SAO_H_
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#define SAO_H_
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/*****************************************************************************
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* This file is part of uvg266 VVC encoder.
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*
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* Copyright (c) 2021, Tampere University, ITU/ISO/IEC, project contributors
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* * Neither the name of the Tampere University or ITU/ISO/IEC nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
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****************************************************************************/
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/**
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* \ingroup Reconstruction
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* \file
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* Sample Adaptive Offset filter.
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*/
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#include "checkpoint.h"
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#include "cu.h"
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#include "encoder.h"
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#include "encoderstate.h"
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#include "global.h" // IWYU pragma: keep
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#include "uvg266.h"
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#include "videoframe.h"
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typedef enum { SAO_TYPE_NONE = 0, SAO_TYPE_BAND, SAO_TYPE_EDGE } sao_type;
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typedef enum { SAO_EO0 = 0, SAO_EO1, SAO_EO2, SAO_EO3, SAO_NUM_EO } sao_eo_class;
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typedef enum { SAO_EO_CAT0 = 0, SAO_EO_CAT1, SAO_EO_CAT2, SAO_EO_CAT3, SAO_EO_CAT4, NUM_SAO_EDGE_CATEGORIES } sao_eo_cat;
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typedef struct sao_info_t {
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sao_type type;
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sao_eo_class eo_class;
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int ddistortion;
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int merge_left_flag;
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int merge_up_flag;
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int band_position[2];
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int offsets[NUM_SAO_EDGE_CATEGORIES * 2];
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} sao_info_t;
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// Offsets of a and b in relation to c.
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// dir_offset[dir][a or b]
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// | | a | a | a |
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// | a c b | c | c | c |
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// | | b | b | b |
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static const vector2d_t g_sao_edge_offsets[SAO_NUM_EO][2] = {
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{ { -1, 0 }, { 1, 0 } },
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{ { 0, -1 }, { 0, 1 } },
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{ { -1, -1 }, { 1, 1 } },
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{ { 1, -1 }, { -1, 1 } }
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};
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#define CHECKPOINT_SAO_INFO(prefix_str, sao) CHECKPOINT(prefix_str " type=%d eo_class=%d ddistortion=%d " \
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"merge_left_flag=%d merge_up_flag=%d band_position=%d " \
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"offsets[0]=%d offsets[1]=%d offsets[2]=%d offsets[3]=%d offsets[4]=%d", \
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(sao).type, (sao).eo_class, (sao).ddistortion, \
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(sao).merge_left_flag, (sao).merge_up_flag, (sao).band_position[0], \
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(sao).offsets[0], (sao).offsets[1], (sao).offsets[2], (sao).offsets[3], (sao).offsets[4])
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void uvg_sao_reconstruct(const encoder_state_t *state,
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const uvg_pixel *buffer,
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int stride,
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int frame_x,
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int frame_y,
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int width,
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int height,
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const sao_info_t *sao,
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color_t color);
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void uvg_sao_search_lcu(const encoder_state_t* const state, int lcu_x, int lcu_y);
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void uvg_calc_sao_offset_array(const encoder_control_t * const encoder, const sao_info_t *sao, int *offset, color_t color_i);
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#endif
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