| /* |
| * Copyright (c) 2016 Paul B Mahol |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef AVFILTER_THRESHOLD_INIT_H |
| #define AVFILTER_THRESHOLD_INIT_H |
| |
| #include <stdint.h> |
| #include <stddef.h> |
| |
| #include "config.h" |
| #include "libavutil/attributes.h" |
| #include "threshold.h" |
| |
| static void threshold8(const uint8_t *in, const uint8_t *threshold, |
| const uint8_t *min, const uint8_t *max, |
| uint8_t *out, |
| ptrdiff_t ilinesize, ptrdiff_t tlinesize, |
| ptrdiff_t flinesize, ptrdiff_t slinesize, |
| ptrdiff_t olinesize, |
| int w, int h) |
| { |
| for (int y = 0; y < h; y++) { |
| for (int x = 0; x < w; x++) |
| out[x] = in[x] <= threshold[x] ? min[x] : max[x]; |
| |
| in += ilinesize; |
| threshold += tlinesize; |
| min += flinesize; |
| max += slinesize; |
| out += olinesize; |
| } |
| } |
| |
| static void threshold16(const uint8_t *iin, const uint8_t *tthreshold, |
| const uint8_t *ffirst, const uint8_t *ssecond, |
| uint8_t *oout, |
| ptrdiff_t ilinesize, ptrdiff_t tlinesize, |
| ptrdiff_t flinesize, ptrdiff_t slinesize, |
| ptrdiff_t olinesize, |
| int w, int h) |
| { |
| const uint16_t *in = (const uint16_t *)iin; |
| const uint16_t *threshold = (const uint16_t *)tthreshold; |
| const uint16_t *min = (const uint16_t *)ffirst; |
| const uint16_t *max = (const uint16_t *)ssecond; |
| uint16_t *out = (uint16_t *)oout; |
| |
| for (int y = 0; y < h; y++) { |
| for (int x = 0; x < w; x++) |
| out[x] = in[x] <= threshold[x] ? min[x] : max[x]; |
| |
| in += ilinesize / 2; |
| threshold += tlinesize / 2; |
| min += flinesize / 2; |
| max += slinesize / 2; |
| out += olinesize / 2; |
| } |
| } |
| |
| static av_unused void ff_threshold_init(ThresholdContext *s) |
| { |
| if (s->depth == 8) { |
| s->threshold = threshold8; |
| s->bpc = 1; |
| } else { |
| s->threshold = threshold16; |
| s->bpc = 2; |
| } |
| |
| #if ARCH_X86 |
| ff_threshold_init_x86(s); |
| #endif |
| } |
| |
| #endif /* AVFILTER_THRESHOLD_INIT_H */ |