blob: 4185c4206f8314fedfd4b0bcc678269349ea4eee
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 */ |
39 |