mirror of https://git.ffmpeg.org/ffmpeg.git
93 lines
2.9 KiB
C
93 lines
2.9 KiB
C
/*
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* Copyright (c) 2016 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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_THRESHOLD_INIT_H
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#define AVFILTER_THRESHOLD_INIT_H
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#include <stdint.h>
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#include <stddef.h>
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#include "config.h"
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#include "libavutil/attributes.h"
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#include "threshold.h"
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static void threshold8(const uint8_t *in, const uint8_t *threshold,
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const uint8_t *min, const uint8_t *max,
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uint8_t *out,
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ptrdiff_t ilinesize, ptrdiff_t tlinesize,
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ptrdiff_t flinesize, ptrdiff_t slinesize,
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ptrdiff_t olinesize,
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int w, int h)
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{
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for (int y = 0; y < h; y++) {
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for (int x = 0; x < w; x++)
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out[x] = in[x] <= threshold[x] ? min[x] : max[x];
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in += ilinesize;
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threshold += tlinesize;
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min += flinesize;
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max += slinesize;
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out += olinesize;
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}
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}
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static void threshold16(const uint8_t *iin, const uint8_t *tthreshold,
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const uint8_t *ffirst, const uint8_t *ssecond,
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uint8_t *oout,
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ptrdiff_t ilinesize, ptrdiff_t tlinesize,
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ptrdiff_t flinesize, ptrdiff_t slinesize,
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ptrdiff_t olinesize,
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int w, int h)
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{
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const uint16_t *in = (const uint16_t *)iin;
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const uint16_t *threshold = (const uint16_t *)tthreshold;
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const uint16_t *min = (const uint16_t *)ffirst;
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const uint16_t *max = (const uint16_t *)ssecond;
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uint16_t *out = (uint16_t *)oout;
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for (int y = 0; y < h; y++) {
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for (int x = 0; x < w; x++)
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out[x] = in[x] <= threshold[x] ? min[x] : max[x];
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in += ilinesize / 2;
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threshold += tlinesize / 2;
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min += flinesize / 2;
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max += slinesize / 2;
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out += olinesize / 2;
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}
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}
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static av_unused void ff_threshold_init(ThresholdContext *s)
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{
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if (s->depth == 8) {
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s->threshold = threshold8;
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s->bpc = 1;
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} else {
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s->threshold = threshold16;
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s->bpc = 2;
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}
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#if ARCH_X86
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ff_threshold_init_x86(s);
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#endif
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}
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#endif /* AVFILTER_THRESHOLD_INIT_H */
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