mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-15 19:55:08 +00:00
53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
/*
|
|
* 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>
|
|
#include "common.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 */
|