2 * This file is part of FFmpeg.
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.
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.
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
19 #ifndef AVCODEC_KBDWIN_H
20 #define AVCODEC_KBDWIN_H
25 * Maximum window size for ff_kbd_window_init.
27 #define FF_KBD_WINDOW_MAX 1024
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
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);
38 #endif /* AVCODEC_KBDWIN_H */