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diff --git a/gst/effectv/gstrev.h b/gst/effectv/gstrev.h
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+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * EffecTV:
+ * Copyright (C) 2001 FUKUCHI Kentarou
+ *
+ * EffecTV - Realtime Digital Video Effector
+ * Copyright (C) 2001 FUKUCHI Kentarou
+ *
+ * revTV based on Rutt-Etra Video Synthesizer 1974?
+
+ * (c)2002 Ed Tannenbaum
+ *
+ * This effect acts like a waveform monitor on each line.
+ * It was originally done by deflecting the electron beam on a monitor using
+ * additional electromagnets on the yoke of a b/w CRT. 
+ * Here it is emulated digitally.
+
+ * Experimaental tapes were made with this system by Bill and 
+ * Louise Etra and Woody and Steina Vasulka
+
+ * The line spacing can be controlled using the 1 and 2 Keys.
+ * The gain is controlled using the 3 and 4 keys.
+ * The update rate is controlled using the 0 and - keys.
+ 
+ * EffecTV is free software. This library is free software;
+ * you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GST_REV_H__
+#define __GST_REV_H__
+
+#include <gst/gst.h>
+
+#include <gst/video/video.h>
+#include <gst/video/gstvideofilter.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_REVTV \
+  (gst_revtv_get_type())
+#define GST_REVTV(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_REVTV,GstRevTV))
+#define GST_REVTV_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_REVTV,GstRevTVClass))
+#define GST_IS_REVTV(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_REVTV))
+#define GST_IS_REVTV_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_REVTV))
+
+typedef struct _GstRevTV GstRevTV;
+typedef struct _GstRevTVClass GstRevTVClass;
+
+struct _GstRevTV
+{
+  GstVideoFilter videofilter;
+
+  /* < private > */
+  gint vgrabtime;
+  gint vgrab;
+  gint linespace;
+  gint vscale;
+};
+
+struct _GstRevTVClass
+{
+  GstVideoFilterClass parent_class;
+};
+
+GType gst_revtv_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_REV_H__ */