/* * 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.h" #include "libavcodec/aac_defines.h" #if CONFIG_HARDCODED_TABLES # define SINETABLE_CONST const #else # define SINETABLE_CONST #endif #ifndef USE_FIXED #define USE_FIXED 0 #endif #define SINETABLE(size) \ SINETABLE_CONST DECLARE_ALIGNED(32, INTFLOAT, AAC_RENAME(ff_sine_##size))[size] #define SINETABLE120960(size) \ DECLARE_ALIGNED(32, INTFLOAT, AAC_RENAME(ff_sine_##size))[size] /** * Generate a sine window. * @param window pointer to half window * @param n size of half window */ void AAC_RENAME(ff_sine_window_init)(INTFLOAT *window, int n); /** * initialize the specified entry of ff_sine_windows */ void AAC_RENAME(ff_init_ff_sine_windows)(int index); extern SINETABLE( 32); extern SINETABLE( 64); extern SINETABLE120960(120); extern SINETABLE( 128); extern SINETABLE( 256); extern SINETABLE( 512); extern SINETABLE120960(960); extern SINETABLE(1024); extern SINETABLE(2048); extern SINETABLE(4096); extern SINETABLE(8192); extern SINETABLE_CONST INTFLOAT * const AAC_RENAME(ff_sine_windows)[16]; #endif /* AVCODEC_SINEWIN_H */