mirror of https://github.com/mpv-player/mpv
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/*
|
|
* This file is part of mpv.
|
|
*
|
|
* mpv 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.
|
|
*
|
|
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef MPLAYER_FILTER_KERNELS_H
|
|
#define MPLAYER_FILTER_KERNELS_H
|
|
|
|
#include <stdbool.h>
|
|
|
|
struct filter_window {
|
|
const char *name;
|
|
double radius; // Preferred radius, should only be changed if resizable
|
|
double (*weight)(struct filter_window *k, double x);
|
|
bool resizable; // Filter supports any given radius
|
|
double params[2]; // User-defined custom filter parameters. Not used by
|
|
// all filters
|
|
double blur; // Blur coefficient (sharpens or widens the filter)
|
|
};
|
|
|
|
struct filter_kernel {
|
|
struct filter_window f; // the kernel itself
|
|
struct filter_window w; // window storage
|
|
bool clamp; // clamp to the range [0-1]
|
|
// Constant values
|
|
const char *window; // default window
|
|
bool polar; // whether or not the filter uses polar coordinates
|
|
// The following values are set by mp_init_filter() at runtime.
|
|
int size; // number of coefficients (may depend on radius)
|
|
double inv_scale; // scale factor (<1.0 is upscale, >1.0 downscale)
|
|
};
|
|
|
|
extern const struct filter_window mp_filter_windows[];
|
|
extern const struct filter_kernel mp_filter_kernels[];
|
|
|
|
const struct filter_window *mp_find_filter_window(const char *name);
|
|
const struct filter_kernel *mp_find_filter_kernel(const char *name);
|
|
|
|
bool mp_init_filter(struct filter_kernel *filter, const int *sizes,
|
|
double scale);
|
|
void mp_compute_lut(struct filter_kernel *filter, int count, float *out_array);
|
|
|
|
#endif /* MPLAYER_FILTER_KERNELS_H */
|