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>

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;
+}