blob: eb1f1eb0900eb16a78e2d8d54633ecfb0eb0f496
1 | /* |
2 | * Copyright (c) 2010 Nolan Lum <nol888@gmail.com> |
3 | * Copyright (c) 2009 Loren Merritt <lorenm@u.washington.edu> |
4 | * |
5 | * This file is part of FFmpeg. |
6 | * |
7 | * FFmpeg is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU Lesser General Public |
9 | * License as published by the Free Software Foundation; either |
10 | * version 2.1 of the License, or (at your option) any later version. |
11 | * |
12 | * FFmpeg is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | * Lesser General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU Lesser General Public |
18 | * License along with FFmpeg; if not, write to the Free Software |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
20 | */ |
21 | |
22 | #ifndef AVFILTER_GRADFUN_H |
23 | #define AVFILTER_GRADFUN_H |
24 | |
25 | #include "avfilter.h" |
26 | |
27 | /// Holds instance-specific information for gradfun. |
28 | typedef struct GradFunContext { |
29 | const AVClass *class; |
30 | float strength; |
31 | int thresh; ///< threshold for gradient algorithm |
32 | int radius; ///< blur radius |
33 | int chroma_w; ///< width of the chroma planes |
34 | int chroma_h; ///< weight of the chroma planes |
35 | int chroma_r; ///< blur radius for the chroma planes |
36 | uint16_t *buf; ///< holds image data for blur algorithm passed into filter. |
37 | /// DSP functions. |
38 | void (*filter_line) (uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers); |
39 | void (*blur_line) (uint16_t *dc, uint16_t *buf, const uint16_t *buf1, const uint8_t *src, int src_linesize, int width); |
40 | } GradFunContext; |
41 | |
42 | void ff_gradfun_init_x86(GradFunContext *gf); |
43 | |
44 | void ff_gradfun_filter_line_c(uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers); |
45 | void ff_gradfun_blur_line_c(uint16_t *dc, uint16_t *buf, const uint16_t *buf1, const uint8_t *src, int src_linesize, int width); |
46 | |
47 | #endif /* AVFILTER_GRADFUN_H */ |
48 |