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1 | /* |
2 | * Header file for hardcoded AAC tables | |
3 | * | |
4 | * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> | |
5 | * | |
6 | * This file is part of FFmpeg. | |
7 | * | |
8 | * FFmpeg is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
12 | * | |
13 | * FFmpeg is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with FFmpeg; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #ifndef AVCODEC_AAC_TABLEGEN_H | |
24 | #define AVCODEC_AAC_TABLEGEN_H | |
25 | ||
26 | #include "aac_tablegen_decl.h" | |
27 | ||
28 | #if CONFIG_HARDCODED_TABLES | |
29 | #include "libavcodec/aac_tables.h" | |
30 | #else | |
31 | #include "libavutil/mathematics.h" | |
32 | float ff_aac_pow2sf_tab[428]; | |
33 | ||
34 | av_cold void ff_aac_tableinit(void) | |
35 | { | |
36 | int i; | |
37 | for (i = 0; i < 428; i++) | |
38 | ff_aac_pow2sf_tab[i] = pow(2, (i - POW_SF2_ZERO) / 4.0); | |
39 | } | |
40 | #endif /* CONFIG_HARDCODED_TABLES */ | |
41 | ||
42 | #endif /* AVCODEC_AAC_TABLEGEN_H */ |