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diff --git a/ext/hermes/yuv2rgb.h b/ext/hermes/yuv2rgb.h
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+/*
+ * Copyright (c) 1995 The Regents of the University of California.
+ * All rights reserved.
+ * 
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ * 
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifndef __YUV2RGB_H__
+#define __YUV2RGB_H__
+
+#include <gst/gst.h>
+
+typedef struct _GstColorSpaceYUVTables GstColorSpaceYUVTables;
+
+struct _GstColorSpaceYUVTables {
+  int gammaCorrectFlag;
+  double gammaCorrect;
+  int chromaCorrectFlag;
+  double chromaCorrect;
+
+  int *L_tab, *Cr_r_tab, *Cr_g_tab, *Cb_g_tab, *Cb_b_tab;
+
+  /*
+   *  We define tables that convert a color value between -256 and 512
+   *  into the R, G and B parts of the pixel. The normal range is 0-255.
+   **/
+
+  long *r_2_pix;
+  long *g_2_pix;
+  long *b_2_pix;
+};
+
+
+typedef struct _GstColorSpaceConverter GstColorSpaceConverter;
+typedef void (*GstColorSpaceConvertFunction) (GstColorSpaceConverter *space, guchar *src, guchar *dest);
+
+struct _GstColorSpaceConverter {
+  guint width;
+  guint height;
+  guint insize;
+  guint outsize;
+  /* private */
+  GstColorSpaceYUVTables *color_tables;
+  GstColorSpaceConvertFunction convert;
+};
+
+
+GstColorSpaceConverter* 	gst_colorspace_yuv2rgb_get_converter	(GstCaps *from, GstCaps *to);
+#define 			gst_colorspace_convert(converter, src, dest) \
+								(converter)->convert((converter), (src), (dest))
+void 				gst_colorspace_destroy		(GstColorSpaceConverter *space);
+
+#endif
+