repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * This file is part of FFmpeg. | |
| 3 | * | |
| 4 | * FFmpeg is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU Lesser General Public | |
| 6 | * License as published by the Free Software Foundation; either | |
| 7 | * version 2.1 of the License, or (at your option) any later version. | |
| 8 | * | |
| 9 | * FFmpeg is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | * Lesser General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU Lesser General Public | |
| 15 | * License along with FFmpeg; if not, write to the Free Software | |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | */ | |
| 18 | ||
| 19 | #ifndef AVUTIL_PIXELUTILS_H | |
| 20 | #define AVUTIL_PIXELUTILS_H | |
| 21 | ||
| 22 | #include <stddef.h> | |
| 23 | #include <stdint.h> | |
| 24 | #include "common.h" | |
| 25 | ||
| 26 | /** | |
| 27 | * Sum of abs(src1[x] - src2[x]) | |
| 28 | */ | |
| 29 | typedef int (*av_pixelutils_sad_fn)(const uint8_t *src1, ptrdiff_t stride1, | |
| 30 | const uint8_t *src2, ptrdiff_t stride2); | |
| 31 | ||
| 32 | /** | |
| 33 | * Get a potentially optimized pointer to a Sum-of-absolute-differences | |
| 34 | * function (see the av_pixelutils_sad_fn prototype). | |
| 35 | * | |
| 36 | * @param w_bits 1<<w_bits is the requested width of the block size | |
| 37 | * @param h_bits 1<<h_bits is the requested height of the block size | |
| 38 | * @param aligned If set to 2, the returned sad function will assume src1 and | |
| 39 | * src2 addresses are aligned on the block size. | |
| 40 | * If set to 1, the returned sad function will assume src1 is | |
| 41 | * aligned on the block size. | |
| 42 | * If set to 0, the returned sad function assume no particular | |
| 43 | * alignment. | |
| 44 | * @param log_ctx context used for logging, can be NULL | |
| 45 | * | |
| 46 | * @return a pointer to the SAD function or NULL in case of error (because of | |
| 47 | * invalid parameters) | |
| 48 | */ | |
| 49 | av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits, | |
| 50 | int aligned, void *log_ctx); | |
| 51 | ||
| 52 | #endif /* AVUTIL_PIXELUTILS_H */ |