67 строки
2.6 KiB
C
67 строки
2.6 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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// clang-format off
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#include "odintrin.h"
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#define OD_DERINGSIZES (2)
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#define OD_DERING_SIZE_LOG2 (3)
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#define OD_DERING_NBLOCKS (OD_BSIZE_MAX / 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 lines too, but let's make it four
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to make vectorization easier. */
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#define OD_FILT_HBORDER (4)
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#define OD_FILT_BSTRIDE (OD_BSIZE_MAX + 2 * OD_FILT_HBORDER)
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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 * (OD_BSIZE_MAX + 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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unsigned char by;
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unsigned char bx;
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} dering_list;
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typedef int (*od_filter_dering_direction_func)(int16_t *y, int ystride,
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const int16_t *in, int threshold,
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int dir);
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typedef void (*od_filter_dering_orthogonal_func)(int16_t *y, int ystride,
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const int16_t *in,
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int threshold, int dir);
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void copy_dering_16bit_to_16bit(int16_t *dst, int dstride, int16_t *src,
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dering_list *dlist, int dering_count, int bsize);
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void od_dering(int16_t *y, int16_t *in, int xdec,
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int dir[OD_DERING_NBLOCKS][OD_DERING_NBLOCKS], int pli,
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dering_list *dlist, int skip_stride, int threshold,
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int coeff_shift);
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int od_filter_dering_direction_4x4_c(int16_t *y, int ystride, const int16_t *in,
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int threshold, int dir);
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int od_filter_dering_direction_8x8_c(int16_t *y, int ystride, const int16_t *in,
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int threshold, int dir);
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void od_filter_dering_orthogonal_4x4_c(int16_t *y, int ystride,
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const int16_t *in, int threshold,
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int dir);
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void od_filter_dering_orthogonal_8x8_c(int16_t *y, int ystride,
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const int16_t *in, int threshold,
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int dir);
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#endif
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