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49 lines
2.2 KiB
C
49 lines
2.2 KiB
C
/*
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* Copyright (c) 2010 Nolan Lum <nol888@gmail.com>
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* Copyright (c) 2009 Loren Merritt <lorenm@u.washignton.edu>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFILTER_GRADFUN_H
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#define AVFILTER_GRADFUN_H
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#include "avfilter.h"
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/// Holds instance-specific information for gradfun.
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typedef struct {
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int thresh; ///< threshold for gradient algorithm
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int radius; ///< blur radius
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int chroma_w; ///< width of the chroma planes
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int chroma_h; ///< weight of the chroma planes
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int chroma_r; ///< blur radius for the chroma planes
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uint16_t *buf; ///< holds image data for blur algorithm passed into filter.
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/// DSP functions.
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void (*filter_line) (uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers);
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void (*blur_line) (uint16_t *dc, uint16_t *buf, uint16_t *buf1, uint8_t *src, int src_linesize, int width);
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} GradFunContext;
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void ff_gradfun_filter_line_c(uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers);
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void ff_gradfun_blur_line_c(uint16_t *dc, uint16_t *buf, uint16_t *buf1, uint8_t *src, int src_linesize, int width);
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void ff_gradfun_filter_line_mmx2(uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers);
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void ff_gradfun_filter_line_ssse3(uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers);
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void ff_gradfun_blur_line_sse2(uint16_t *dc, uint16_t *buf, uint16_t *buf1, uint8_t *src, int src_linesize, int width);
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#endif /* AVFILTER_GRADFUN_H */
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