Add support for hard-coded MDCT-related ff_sine_windows tables.

Originally committed as revision 21108 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 61 insertions, 0 deletions

diff --git a/libavcodec/mdct_tablegen.c b/libavcodec/mdct_tablegen.c
new file mode 100644
index 0000000000..f04502f181
--- /dev/null
+++ b/libavcodec/mdct_tablegen.c
@@ -0,0 +1,61 @@
+/*
+ * Generate a header file for hardcoded MDCT tables
+ *
+ * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; 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 av_cold
+#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 "mdct_tablegen.h"
+#include "tableprint.h"
+
+void tableinit(void)
+{
+    int i;
+    for (i = 5; i <= 12; i++)
+        ff_init_ff_sine_windows(i);
+}
+
+#define SINE_TABLE_DEF(size) \
+    { \
+        "SINETABLE("#size")", \
+        write_float_array, \
+        ff_sine_##size, \
+        size \
+    },
+
+const struct tabledef tables[] = {
+    SINE_TABLE_DEF(  32)
+    SINE_TABLE_DEF(  64)
+    SINE_TABLE_DEF( 128)
+    SINE_TABLE_DEF( 256)
+    SINE_TABLE_DEF( 512)
+    SINE_TABLE_DEF(1024)
+    SINE_TABLE_DEF(2048)
+    SINE_TABLE_DEF(4096)
+    { NULL }
+};