mirror of https://github.com/mpv-player/mpv
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*
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* This file is part of mplayer2.
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*
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* mplayer2 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mplayer2 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mplayer2; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_FILTER_KERNELS_H
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#define MPLAYER_FILTER_KERNELS_H
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#include <stdbool.h>
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struct filter_kernel {
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const char *name;
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double radius;
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double (*weight)(struct filter_kernel *kernel, double x);
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// The filter params can be changed at runtime. Only used by some filters.
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float params[2];
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// The following values are set by mp_init_filter() at runtime.
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// Number of coefficients; equals the rounded up radius multiplied with 2.
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int size;
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double inv_scale;
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};
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extern const struct filter_kernel mp_filter_kernels[];
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const struct filter_kernel *mp_find_filter_kernel(const char *name);
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bool mp_init_filter(struct filter_kernel *filter, const int *sizes,
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double scale);
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void mp_compute_weights(struct filter_kernel *filter, double f, float *out_w);
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void mp_compute_lut(struct filter_kernel *filter, int count, float *out_array);
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#endif /* MPLAYER_FILTER_KERNELS_H */
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