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FFmpeg/libavcodec/sinewin_tablegen.c
Mans Rullgard 4538729afe Move sine windows to a separate file
These windows do not really belong in fft/mdct files and were
easily confused with the similarly named tables used by rdft.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-20 13:25:19 +00:00

50 lines
1.4 KiB
C

/*
* Generate a header file for hardcoded sine windows
*
* Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#define CONFIG_HARDCODED_TABLES 0
#define SINETABLE_CONST
#define SINETABLE(size) \
float ff_sine_##size[size]
#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#include "sinewin_tablegen.h"
#include "tableprint.h"
int main(void)
{
int i;
write_fileheader();
for (i = 5; i <= 12; i++) {
ff_init_ff_sine_windows(i);
printf("SINETABLE(%4i) = {\n", 1 << i);
write_float_array(ff_sine_windows[i], 1 << i);
printf("};\n");
}
return 0;
}