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- /*
- * 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 AVUTIL_PIXELUTILS_H
- #define AVUTIL_PIXELUTILS_H
- #include <stddef.h>
- #include <stdint.h>
- /**
- * Sum of abs(src1[x] - src2[x])
- */
- typedef int (*av_pixelutils_sad_fn)(const uint8_t *src1, ptrdiff_t stride1,
- const uint8_t *src2, ptrdiff_t stride2);
- /**
- * Get a potentially optimized pointer to a Sum-of-absolute-differences
- * function (see the av_pixelutils_sad_fn prototype).
- *
- * @param w_bits 1<<w_bits is the requested width of the block size
- * @param h_bits 1<<h_bits is the requested height of the block size
- * @param aligned If set to 2, the returned sad function will assume src1 and
- * src2 addresses are aligned on the block size.
- * If set to 1, the returned sad function will assume src1 is
- * aligned on the block size.
- * If set to 0, the returned sad function assume no particular
- * alignment.
- * @param log_ctx context used for logging, can be NULL
- *
- * @return a pointer to the SAD function or NULL in case of error (because of
- * invalid parameters)
- */
- av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits,
- int aligned, void *log_ctx);
- #endif /* AVUTIL_PIXELUTILS_H */
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