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[melted] / src / framework / mlt_filter.h

diff --git a/src/framework/mlt_filter.h b/src/framework/mlt_filter.h
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+/*
+ * mlt_filter.h -- abstraction for all filter services
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@pandora.be>
+ *
+ * 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 _MLT_FILTER_H_
+#define _MLT_FILTER_H_
+
+#include "mlt_service.h"
+
+/** The interface definition for all filters.
+*/
+
+struct mlt_filter_s
+{
+       // We're implementing service here
+       struct mlt_service_s parent;
+
+       // public virtual
+       void ( *close )( mlt_filter );
+
+       // protected filter method
+       mlt_frame ( *process )( mlt_filter, mlt_frame );
+
+       // track and in/out points
+       mlt_service producer;
+       int track;
+       mlt_timecode in;
+       mlt_timecode out;
+
+       // Protected
+       void *child;
+};
+
+/** Public final methods
+*/
+
+extern int mlt_filter_init( mlt_filter this, void *child );
+extern mlt_service mlt_filter_service( mlt_filter this );
+extern int mlt_filter_connect( mlt_filter this, mlt_service producer, int index );
+extern void mlt_filter_set_in_and_out( mlt_filter this, mlt_timecode in, mlt_timecode out );
+extern int mlt_filter_get_track( mlt_filter this );
+extern mlt_timecode mlt_filter_get_in( mlt_filter this );
+extern mlt_timecode mlt_filter_get_out( mlt_filter this );
+extern void mlt_filter_close( mlt_filter );
+
+#endif