/* * Header file for hardcoded AAC tables * * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> * * 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_AAC_TABLEGEN_H #define AVCODEC_AAC_TABLEGEN_H #include "aac_tablegen_decl.h" #if CONFIG_HARDCODED_TABLES #include "libavcodec/aac_tables.h" #else #include "libavutil/mathematics.h" float ff_aac_pow2sf_tab[428]; float ff_aac_pow34sf_tab[428]; av_cold void ff_aac_tableinit(void) { int i; for (i = 0; i < 428; i++) { ff_aac_pow2sf_tab[i] = pow(2, (i - POW_SF2_ZERO) / 4.0); ff_aac_pow34sf_tab[i] = pow(ff_aac_pow2sf_tab[i], 3.0/4.0); } } #endif /* CONFIG_HARDCODED_TABLES */ #endif /* AVCODEC_AAC_TABLEGEN_H */