FFmpeg
libavcodec
sinewin.h
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/*
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* Copyright (c) 2008 Robert Swain
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_SINEWIN_H
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#define AVCODEC_SINEWIN_H
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#include "config.h"
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#include "
libavutil/mem_internal.h
"
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#if CONFIG_HARDCODED_TABLES
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# define SINETABLE_CONST const
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#else
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# define SINETABLE_CONST
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#endif
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#define SINETABLE(size) \
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SINETABLE_CONST DECLARE_ALIGNED(32, float, ff_sine_##size)[size]
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/**
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* Generate a sine window.
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* @param window pointer to half window
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* @param n size of half window
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*/
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void
ff_sine_window_init
(
float
*
window
,
int
n);
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/**
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* initialize the specified entry of ff_sine_windows
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*/
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void
ff_init_ff_sine_windows
(
int
index
);
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extern
SINETABLE
( 32);
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extern
SINETABLE
( 64);
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extern
SINETABLE
( 128);
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extern
SINETABLE
( 256);
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extern
SINETABLE
( 512);
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extern
SINETABLE
(1024);
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extern
SINETABLE
(2048);
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extern
SINETABLE
(4096);
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extern
SINETABLE
(8192);
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extern
SINETABLE_CONST
float
*
const
ff_sine_windows
[];
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#endif
/* AVCODEC_SINEWIN_H */
ff_sine_windows
SINETABLE_CONST float *const ff_sine_windows[]
Definition:
sinewin_tablegen.h:51
mem_internal.h
window
static SDL_Window * window
Definition:
ffplay.c:361
index
int index
Definition:
gxfenc.c:90
SINETABLE
#define SINETABLE(size)
Definition:
sinewin.h:33
ff_sine_window_init
void ff_sine_window_init(float *window, int n)
Generate a sine window.
Definition:
sinewin_tablegen.h:59
ff_init_ff_sine_windows
void ff_init_ff_sine_windows(int index)
initialize the specified entry of ff_sine_windows
Definition:
sinewin_tablegen.h:101
SINETABLE_CONST
#define SINETABLE_CONST
Definition:
sinewin.h:30
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