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2ba45a60 DM |
1 | /* |
2 | * This file is part of FFmpeg. | |
3 | * | |
4 | * FFmpeg is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU Lesser General Public | |
6 | * License as published by the Free Software Foundation; either | |
7 | * version 2.1 of the License, or (at your option) any later version. | |
8 | * | |
9 | * FFmpeg is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * Lesser General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU Lesser General Public | |
15 | * License along with FFmpeg; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | */ | |
18 | ||
19 | #ifndef AVCODEC_KBDWIN_H | |
20 | #define AVCODEC_KBDWIN_H | |
21 | ||
22 | #include <stdint.h> | |
23 | ||
24 | /** | |
25 | * Maximum window size for ff_kbd_window_init. | |
26 | */ | |
27 | #define FF_KBD_WINDOW_MAX 1024 | |
28 | ||
29 | /** | |
30 | * Generate a Kaiser-Bessel Derived Window. | |
31 | * @param window pointer to half window | |
32 | * @param alpha determines window shape | |
33 | * @param n size of half window, max FF_KBD_WINDOW_MAX | |
34 | */ | |
35 | void ff_kbd_window_init(float *window, float alpha, int n); | |
36 | void ff_kbd_window_init_fixed(int32_t *window, float alpha, int n); | |
37 | ||
38 | #endif /* AVCODEC_KBDWIN_H */ |