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authorMans Rullgard <mans@mansr.com>2011-03-19 23:44:00 +0000
committerMans Rullgard <mans@mansr.com>2011-03-20 13:25:19 +0000
commit4538729afed44a0ee0a762d3ef69aa4bbb7f10b3 (patch)
tree746f6f85406a0100bff5684c1055c8922761d020 /libavcodec/sinewin_tablegen.c
parenta45fbda994df54600101e845e29f0af60e456e95 (diff)
downloadffmpeg-4538729afed44a0ee0a762d3ef69aa4bbb7f10b3.tar.gz
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>
Diffstat (limited to 'libavcodec/sinewin_tablegen.c')
-rw-r--r--libavcodec/sinewin_tablegen.c49
1 files changed, 49 insertions, 0 deletions
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 <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;
+}