Add libwmapro to apps/codecs. These files comprise a set of unmodified files needed from ffmpeg's libavcodec and libavutil to compile and use the wma pro decoder standalone. The files were taken from ffmpeg's svn r22886 dated 15 April 2010.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25763 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 60 insertions, 0 deletions

diff --git a/apps/codecs/libwmapro/mdct_tablegen.h b/apps/codecs/libwmapro/mdct_tablegen.h
new file mode 100644
index 0000000000..1722c3b4d0
--- /dev/null
+++ b/apps/codecs/libwmapro/mdct_tablegen.h
@@ -0,0 +1,60 @@
+/*
+ * 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 <assert.h>
+// do not use libavutil/mathematics.h since this is compiled both
+// for the host and the target and config.h is only valid for the target
+#include <math.h>
+#include "../libavutil/attributes.h"
+
+#if !CONFIG_HARDCODED_TABLES
+SINETABLE(  32);
+SINETABLE(  64);
+SINETABLE( 128);
+SINETABLE( 256);
+SINETABLE( 512);
+SINETABLE(1024);
+SINETABLE(2048);
+SINETABLE(4096);
+#else
+#include "libavcodec/mdct_tables.h"
+#endif
+
+SINETABLE_CONST float * const ff_sine_windows[] = {
+    NULL, NULL, NULL, NULL, NULL, // unused
+    ff_sine_32 , ff_sine_64 ,
+    ff_sine_128, ff_sine_256, ff_sine_512, ff_sine_1024, ff_sine_2048, ff_sine_4096
+};
+
+// Generate a sine window.
+av_cold void ff_sine_window_init(float *window, int n) {
+    int i;
+    for(i = 0; i < n; i++)
+        window[i] = sinf((i + 0.5) * (M_PI / (2.0 * n)));
+}
+
+av_cold void ff_init_ff_sine_windows(int index) {
+    assert(index >= 0 && index < FF_ARRAY_ELEMS(ff_sine_windows));
+#if !CONFIG_HARDCODED_TABLES
+    ff_sine_window_init(ff_sine_windows[index], 1 << index);
+#endif
+}