repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| f6fa7814 DM |
1 | /* |
| 2 | * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at> | |
| 3 | * Copyright (c) 2013 Paul B Mahol | |
| 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_NOISE_H | |
| 23 | #define AVFILTER_NOISE_H | |
| 24 | ||
| 25 | #include "libavutil/lfg.h" | |
| 26 | #include "avfilter.h" | |
| 27 | ||
| 28 | #define MAX_NOISE 5120 | |
| 29 | #define MAX_SHIFT 1024 | |
| 30 | #define MAX_RES (MAX_NOISE-MAX_SHIFT) | |
| 31 | ||
| 32 | #define NOISE_UNIFORM 1 | |
| 33 | #define NOISE_TEMPORAL 2 | |
| 34 | #define NOISE_AVERAGED 8 | |
| 35 | #define NOISE_PATTERN 16 | |
| 36 | ||
| 37 | typedef struct { | |
| 38 | int strength; | |
| 39 | unsigned flags; | |
| 40 | AVLFG lfg; | |
| 41 | int seed; | |
| 42 | int8_t *noise; | |
| 43 | int8_t *prev_shift[MAX_RES][3]; | |
| 44 | int rand_shift[MAX_RES]; | |
| 45 | int rand_shift_init; | |
| 46 | } FilterParams; | |
| 47 | ||
| 48 | typedef struct { | |
| 49 | const AVClass *class; | |
| 50 | int nb_planes; | |
| 51 | int bytewidth[4]; | |
| 52 | int height[4]; | |
| 53 | FilterParams all; | |
| 54 | FilterParams param[4]; | |
| 55 | void (*line_noise)(uint8_t *dst, const uint8_t *src, const int8_t *noise, int len, int shift); | |
| 56 | void (*line_noise_avg)(uint8_t *dst, const uint8_t *src, int len, const int8_t * const *shift); | |
| 57 | } NoiseContext; | |
| 58 | ||
| 59 | void ff_line_noise_c(uint8_t *dst, const uint8_t *src, const int8_t *noise, int len, int shift); | |
| 60 | void ff_line_noise_avg_c(uint8_t *dst, const uint8_t *src, int len, const int8_t * const *shift); | |
| 61 | ||
| 62 | void ff_noise_init_x86(NoiseContext *n); | |
| 63 | ||
| 64 | #endif /* AVFILTER_NOISE_H */ |