aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* 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 */
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