| /* | |
| * Copyright (c) 2008 Robert Swain | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg 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 | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| #ifndef AVCODEC_SINEWIN_H | |
| #define AVCODEC_SINEWIN_H | |
| #include "config.h" | |
| #include "libavutil/mem_internal.h" | |
| #if CONFIG_HARDCODED_TABLES | |
| # define SINETABLE_CONST const | |
| #else | |
| # define SINETABLE_CONST | |
| #endif | |
| #define SINETABLE(size) \ | |
| SINETABLE_CONST DECLARE_ALIGNED(32, float, ff_sine_##size)[size] | |
| /** | |
| * Generate a sine window. | |
| * @param window pointer to half window | |
| * @param n size of half window | |
| */ | |
| void ff_sine_window_init(float *window, int n); | |
| /** | |
| * initialize the specified entry of ff_sine_windows | |
| */ | |
| void ff_init_ff_sine_windows(int index); | |
| extern SINETABLE( 32); | |
| extern SINETABLE( 64); | |
| extern SINETABLE( 128); | |
| extern SINETABLE( 256); | |
| extern SINETABLE( 512); | |
| extern SINETABLE(1024); | |
| extern SINETABLE(2048); | |
| extern SINETABLE(4096); | |
| extern SINETABLE(8192); | |
| extern SINETABLE_CONST float *const ff_sine_windows[]; | |
| #endif /* AVCODEC_SINEWIN_H */ |