From 4538729afed44a0ee0a762d3ef69aa4bbb7f10b3 Mon Sep 17 00:00:00 2001 From: Mans Rullgard Date: Sat, 19 Mar 2011 23:44:00 +0000 Subject: 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 --- libavcodec/sinewin_tablegen.c | 49 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 libavcodec/sinewin_tablegen.c (limited to 'libavcodec/sinewin_tablegen.c') diff --git a/libavcodec/sinewin_tablegen.c b/libavcodec/sinewin_tablegen.c new file mode 100644 index 0000000000..2f4d1aa2ae --- /dev/null +++ b/libavcodec/sinewin_tablegen.c @@ -0,0 +1,49 @@ +/* + * Generate a header file for hardcoded sine windows + * + * Copyright (c) 2009 Reimar Döffinger + * + * 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 +#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; +} -- cgit v1.2.3