55 строки
2.1 KiB
C
55 строки
2.1 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#if !defined(_dering_H)
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#define _dering_H (1)
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#include "odintrin.h"
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#define OD_DERING_NBLOCKS (MAX_SB_SIZE / 8)
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/* We need to buffer three vertical lines. */
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#define OD_FILT_VBORDER (3)
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/* We only need to buffer three horizontal pixels too, but let's align to
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16 bytes (8 x 16 bits) to make vectorization easier. */
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#define OD_FILT_HBORDER (8)
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#define OD_FILT_BSTRIDE ALIGN_POWER_OF_TWO(MAX_SB_SIZE + 2 * OD_FILT_HBORDER, 3)
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#define OD_DERING_VERY_LARGE (30000)
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#define OD_DERING_INBUF_SIZE \
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(OD_FILT_BSTRIDE * (MAX_SB_SIZE + 2 * OD_FILT_VBORDER))
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extern const int OD_DIRECTION_OFFSETS_TABLE[8][3];
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typedef struct {
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uint8_t by;
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uint8_t bx;
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uint8_t skip;
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} dering_list;
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typedef void (*od_filter_dering_direction_func)(uint16_t *y, int ystride,
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const uint16_t *in,
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int threshold, int dir,
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int damping);
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void copy_dering_16bit_to_16bit(uint16_t *dst, int dstride, uint16_t *src,
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dering_list *dlist, int dering_count,
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int bsize);
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int get_filter_skip(int level);
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void od_dering(uint8_t *dst, int dstride, uint16_t *y, uint16_t *in, int xdec,
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int ydec, int dir[OD_DERING_NBLOCKS][OD_DERING_NBLOCKS],
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int *dirinit, int var[OD_DERING_NBLOCKS][OD_DERING_NBLOCKS],
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int pli, dering_list *dlist, int dering_count, int level,
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int clpf_strength, int clpf_damping, int coeff_shift,
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int skip_dering, int hbd);
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#endif
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