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diff --git a/cinelerra-5.1/cinelerra/keyframes.h b/cinelerra-5.1/cinelerra/keyframes.h
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+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * 
+ */
+
+#ifndef KEYFRAMES_H
+#define KEYFRAMES_H
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include "autos.h"
+#include "filexml.inc"
+#include "keyframe.inc"
+
+
+// Keyframes inherit from Autos to reuse the editing commands but
+// keyframes don't belong to tracks.  Instead they belong to plugins
+// because their data is specific to plugins.
+
+
+class KeyFrames : public Autos
+{
+public:
+	KeyFrames(EDL *edl, Track *track);
+	~KeyFrames();
+
+// Get keyframes for editing with automatic creation if enabled.
+// The direction is always assumed to be forward.
+	virtual KeyFrame* get_keyframe();
+// Get the previous, first, or default keyframe depending on how many keyframes
+// exist.
+	KeyFrame* get_prev_keyframe(int64_t position,
+		int direction);
+
+// Keyframe updates using rules.
+// If a range is selected, the changed parameter is copied to all 
+// the keyframes.
+// If no range is selected, a keyframe is created based on auto keyframe rules.
+	void update_parameter(KeyFrame *src);
+
+	Auto* new_auto();
+	void dump(FILE *fp=stdout);
+};
+
+#endif