initial commit, 4.5 stable

thirdparty/libtheora/dct.h

@@ -0,0 +1,31 @@
+/********************************************************************
+ *                                                                  *
+ * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE.   *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
+ *                                                                  *
+ * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009                *
+ * by the Xiph.Org Foundation and contributors                      *
+ * https://www.xiph.org/                                            *
+ *                                                                  *
+ ********************************************************************
+
+  function:
+
+ ********************************************************************/
+
+/*Definitions shared by the forward and inverse DCT transforms.*/
+#if !defined(_dct_H)
+# define _dct_H (1)
+
+/*cos(n*pi/16) (resp. sin(m*pi/16)) scaled by 65536.*/
+#define OC_C1S7 ((ogg_int32_t)64277)
+#define OC_C2S6 ((ogg_int32_t)60547)
+#define OC_C3S5 ((ogg_int32_t)54491)
+#define OC_C4S4 ((ogg_int32_t)46341)
+#define OC_C5S3 ((ogg_int32_t)36410)
+#define OC_C6S2 ((ogg_int32_t)25080)
+#define OC_C7S1 ((ogg_int32_t)12785)
+
+#endif