blob: 27c107ce5941cc3d3f9872b7133923fd4f49b0ac
| 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 | #include "libavcodec/aac_defines.h" |
| 27 | |
| 28 | #if CONFIG_HARDCODED_TABLES |
| 29 | # define SINETABLE_CONST const |
| 30 | #else |
| 31 | # define SINETABLE_CONST |
| 32 | #endif |
| 33 | |
| 34 | #ifndef USE_FIXED |
| 35 | #define USE_FIXED 0 |
| 36 | #endif |
| 37 | |
| 38 | #define SINETABLE(size) \ |
| 39 | SINETABLE_CONST DECLARE_ALIGNED(32, INTFLOAT, AAC_RENAME(ff_sine_##size))[size] |
| 40 | |
| 41 | /** |
| 42 | * Generate a sine window. |
| 43 | * @param window pointer to half window |
| 44 | * @param n size of half window |
| 45 | */ |
| 46 | void AAC_RENAME(ff_sine_window_init)(INTFLOAT *window, int n); |
| 47 | |
| 48 | /** |
| 49 | * initialize the specified entry of ff_sine_windows |
| 50 | */ |
| 51 | void AAC_RENAME(ff_init_ff_sine_windows)(int index); |
| 52 | |
| 53 | extern SINETABLE( 32); |
| 54 | extern SINETABLE( 64); |
| 55 | extern SINETABLE( 128); |
| 56 | extern SINETABLE( 256); |
| 57 | extern SINETABLE( 512); |
| 58 | extern SINETABLE(1024); |
| 59 | extern SINETABLE(2048); |
| 60 | extern SINETABLE(4096); |
| 61 | extern SINETABLE(8192); |
| 62 | |
| 63 | extern SINETABLE_CONST INTFLOAT * const AAC_RENAME(ff_sine_windows)[14]; |
| 64 | |
| 65 | #endif /* AVCODEC_SINEWIN_H */ |
| 66 |