105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/*
|
|
* Original MPlayer filters by Richard Felker, Hampa Hug, Daniel Moreno,
|
|
* and Michael Niedermeyer.
|
|
*
|
|
* Copyright (c) 2014 James Darnley <james.darnley@gmail.com>
|
|
* Copyright (c) 2015 Arwa Arif <arwaarif1994@gmail.com>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU 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_EQ_H
|
|
#define AVFILTER_EQ_H
|
|
|
|
#include "avfilter.h"
|
|
#include "libavutil/eval.h"
|
|
|
|
static const char * const var_names[] = {
|
|
"contrast",
|
|
"brightness",
|
|
"saturation",
|
|
"gamma",
|
|
"gamma_weight",
|
|
"gamma_r",
|
|
"gamma_g",
|
|
"gamma_b",
|
|
NULL
|
|
};
|
|
|
|
enum var_name {
|
|
VAR_CONTRAST ,
|
|
VAR_BRIGHTNESS ,
|
|
VAR_SATURATION ,
|
|
VAR_GAMMA ,
|
|
VAR_GAMMA_WEIGHT ,
|
|
VAR_GAMMA_R ,
|
|
VAR_GAMMA_G ,
|
|
VAR_GAMMA_B ,
|
|
VAR_VARS_NB ,
|
|
};
|
|
|
|
typedef struct EQParameters {
|
|
void (*adjust)(struct EQParameters *eq, uint8_t *dst, int dst_stride,
|
|
const uint8_t *src, int src_stride, int w, int h);
|
|
|
|
uint8_t lut[256];
|
|
|
|
double brightness, contrast, gamma, gamma_weight;
|
|
int lut_clean;
|
|
|
|
} EQParameters;
|
|
|
|
typedef struct {
|
|
const AVClass *class;
|
|
|
|
EQParameters param[3];
|
|
|
|
char *contrast_expr;
|
|
AVExpr *contrast_pexpr;
|
|
|
|
char *brightness_expr;
|
|
AVExpr *brightness_pexpr;
|
|
|
|
char *saturation_expr;
|
|
AVExpr *saturation_pexpr;
|
|
|
|
char *gamma_expr;
|
|
AVExpr *gamma_pexpr;
|
|
|
|
char *gamma_weight_expr;
|
|
AVExpr *gamma_weight_pexpr;
|
|
|
|
char *gamma_r_expr;
|
|
AVExpr *gamma_r_pexpr;
|
|
|
|
char *gamma_g_expr;
|
|
AVExpr *gamma_g_pexpr;
|
|
|
|
char *gamma_b_expr;
|
|
AVExpr *gamma_b_pexpr;
|
|
|
|
double var_values[VAR_VARS_NB];
|
|
|
|
void (*process)(struct EQParameters *par, uint8_t *dst, int dst_stride,
|
|
const uint8_t *src, int src_stride, int w, int h);
|
|
|
|
} EQContext;
|
|
|
|
void ff_eq_init_x86(EQContext *eq);
|
|
|
|
#endif /* AVFILTER_EQ_H */
|