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|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2016 Paul B Mahol | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #ifndef AVFILTER_THRESHOLD_INIT_H | ||
| 22 | #define AVFILTER_THRESHOLD_INIT_H | ||
| 23 | |||
| 24 | #include <stdint.h> | ||
| 25 | #include <stddef.h> | ||
| 26 | |||
| 27 | #include "config.h" | ||
| 28 | #include "libavutil/attributes.h" | ||
| 29 | #include "threshold.h" | ||
| 30 | |||
| 31 | 3 | static void threshold8(const uint8_t *in, const uint8_t *threshold, | |
| 32 | const uint8_t *min, const uint8_t *max, | ||
| 33 | uint8_t *out, | ||
| 34 | ptrdiff_t ilinesize, ptrdiff_t tlinesize, | ||
| 35 | ptrdiff_t flinesize, ptrdiff_t slinesize, | ||
| 36 | ptrdiff_t olinesize, | ||
| 37 | int w, int h) | ||
| 38 | { | ||
| 39 |
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6 | for (int y = 0; y < h; y++) { |
| 40 |
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771 | for (int x = 0; x < w; x++) |
| 41 |
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768 | out[x] = in[x] <= threshold[x] ? min[x] : max[x]; |
| 42 | |||
| 43 | 3 | in += ilinesize; | |
| 44 | 3 | threshold += tlinesize; | |
| 45 | 3 | min += flinesize; | |
| 46 | 3 | max += slinesize; | |
| 47 | 3 | out += olinesize; | |
| 48 | } | ||
| 49 | 3 | } | |
| 50 | |||
| 51 | 3 | static void threshold16(const uint8_t *iin, const uint8_t *tthreshold, | |
| 52 | const uint8_t *ffirst, const uint8_t *ssecond, | ||
| 53 | uint8_t *oout, | ||
| 54 | ptrdiff_t ilinesize, ptrdiff_t tlinesize, | ||
| 55 | ptrdiff_t flinesize, ptrdiff_t slinesize, | ||
| 56 | ptrdiff_t olinesize, | ||
| 57 | int w, int h) | ||
| 58 | { | ||
| 59 | 3 | const uint16_t *in = (const uint16_t *)iin; | |
| 60 | 3 | const uint16_t *threshold = (const uint16_t *)tthreshold; | |
| 61 | 3 | const uint16_t *min = (const uint16_t *)ffirst; | |
| 62 | 3 | const uint16_t *max = (const uint16_t *)ssecond; | |
| 63 | 3 | uint16_t *out = (uint16_t *)oout; | |
| 64 | |||
| 65 |
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| 66 |
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| 67 |
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384 | out[x] = in[x] <= threshold[x] ? min[x] : max[x]; |
| 68 | |||
| 69 | 3 | in += ilinesize / 2; | |
| 70 | 3 | threshold += tlinesize / 2; | |
| 71 | 3 | min += flinesize / 2; | |
| 72 | 3 | max += slinesize / 2; | |
| 73 | 3 | out += olinesize / 2; | |
| 74 | } | ||
| 75 | 3 | } | |
| 76 | |||
| 77 | 26 | static av_unused void ff_threshold_init(ThresholdContext *s) | |
| 78 | { | ||
| 79 |
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26 | if (s->depth == 8) { |
| 80 | 13 | s->threshold = threshold8; | |
| 81 | 13 | s->bpc = 1; | |
| 82 | } else { | ||
| 83 | 13 | s->threshold = threshold16; | |
| 84 | 13 | s->bpc = 2; | |
| 85 | } | ||
| 86 | |||
| 87 | #if ARCH_X86 | ||
| 88 | 26 | ff_threshold_init_x86(s); | |
| 89 | #endif | ||
| 90 | 26 | } | |
| 91 | |||
| 92 | #endif /* AVFILTER_THRESHOLD_INIT_H */ | ||
| 93 |