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diff --git a/cinelerra-5.1/cinelerra/virtualaconsole.h b/cinelerra-5.1/cinelerra/virtualaconsole.h
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+++ b/cinelerra-5.1/cinelerra/virtualaconsole.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 ARENDERTHREAD_H
+#define ARENDERTHREAD_H
+
+
+#include "arender.inc"
+#include "filethread.inc"     // RING_BUFFERS
+#include "samples.inc"
+#include "virtualconsole.h"
+
+class VirtualAConsole : public VirtualConsole
+{
+public:
+	VirtualAConsole(RenderEngine *renderengine, ARender *arender);
+	virtual ~VirtualAConsole();
+
+	int set_transport(int reverse, float speed);
+	void get_playable_tracks();
+
+// process a buffer
+	int process_buffer(int64_t input_len,
+		int64_t input_position);
+
+	void process_asynchronous();
+
+// set up virtual console and buffers
+	int init_rendering(int duplicate);
+//	int build_virtual_console(int duplicate, int64_t current_position);
+	VirtualNode* new_entry_node(Track *track, 
+		Module *module,
+		int track_number);
+
+// cause audio device to quit
+	int send_last_output_buffer();
+
+// Temporary for audio rendering.  This stores each track's output before it is
+// mixed into the device buffer.
+	Samples *output_temp;
+	int output_allocation;
+
+	ARender *arender;
+};
+
+
+#endif