mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
864f9326fb
Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/*
|
|
* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
|
|
* Copyright (c) 2013 Paul B Mahol
|
|
*
|
|
* 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 AVFILTER_NOISE_H
|
|
#define AVFILTER_NOISE_H
|
|
|
|
#include "libavutil/lfg.h"
|
|
#include "avfilter.h"
|
|
|
|
#define MAX_NOISE 5120
|
|
#define MAX_SHIFT 1024
|
|
#define MAX_RES (MAX_NOISE-MAX_SHIFT)
|
|
|
|
#define NOISE_UNIFORM 1
|
|
#define NOISE_TEMPORAL 2
|
|
#define NOISE_AVERAGED 8
|
|
#define NOISE_PATTERN 16
|
|
|
|
typedef struct {
|
|
int strength;
|
|
unsigned flags;
|
|
AVLFG lfg;
|
|
int seed;
|
|
int8_t *noise;
|
|
int8_t *prev_shift[MAX_RES][3];
|
|
int rand_shift[MAX_RES];
|
|
int rand_shift_init;
|
|
} FilterParams;
|
|
|
|
typedef struct {
|
|
const AVClass *class;
|
|
int nb_planes;
|
|
int bytewidth[4];
|
|
int height[4];
|
|
FilterParams all;
|
|
FilterParams param[4];
|
|
void (*line_noise)(uint8_t *dst, const uint8_t *src, const int8_t *noise, int len, int shift);
|
|
void (*line_noise_avg)(uint8_t *dst, const uint8_t *src, int len, const int8_t * const *shift);
|
|
} NoiseContext;
|
|
|
|
void ff_line_noise_c(uint8_t *dst, const uint8_t *src, const int8_t *noise, int len, int shift);
|
|
void ff_line_noise_avg_c(uint8_t *dst, const uint8_t *src, int len, const int8_t * const *shift);
|
|
|
|
void ff_noise_init_x86(NoiseContext *n);
|
|
|
|
#endif /* AVFILTER_NOISE_H */
|