repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (c) 2008 Robert Swain | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef AVCODEC_SINEWIN_H | |
| 22 | #define AVCODEC_SINEWIN_H | |
| 23 | ||
| 24 | #include "config.h" | |
| 25 | #include "libavutil/mem.h" | |
| 26 | ||
| 27 | #if CONFIG_HARDCODED_TABLES | |
| 28 | # define SINETABLE_CONST const | |
| 29 | #else | |
| 30 | # define SINETABLE_CONST | |
| 31 | #endif | |
| 32 | ||
| 33 | #define SINETABLE(size) \ | |
| 34 | SINETABLE_CONST DECLARE_ALIGNED(32, float, ff_sine_##size)[size] | |
| 35 | ||
| 36 | /** | |
| 37 | * Generate a sine window. | |
| 38 | * @param window pointer to half window | |
| 39 | * @param n size of half window | |
| 40 | */ | |
| 41 | void ff_sine_window_init(float *window, int n); | |
| 42 | ||
| 43 | /** | |
| 44 | * initialize the specified entry of ff_sine_windows | |
| 45 | */ | |
| 46 | void ff_init_ff_sine_windows(int index); | |
| 47 | ||
| 48 | extern SINETABLE( 32); | |
| 49 | extern SINETABLE( 64); | |
| 50 | extern SINETABLE( 128); | |
| 51 | extern SINETABLE( 256); | |
| 52 | extern SINETABLE( 512); | |
| 53 | extern SINETABLE(1024); | |
| 54 | extern SINETABLE(2048); | |
| 55 | extern SINETABLE(4096); | |
| 56 | extern SINETABLE(8192); | |
| 57 | ||
| 58 | extern SINETABLE_CONST float * const ff_sine_windows[14]; | |
| 59 | ||
| 60 | #endif /* AVCODEC_SINEWIN_H */ |