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<H1>../gegl/operation/gegl-operation-temporal.h</H1>
<PRE>
<I><FONT COLOR="#B22222">/* This file is part of GEGL
*
* GEGL is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* GEGL 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2008 Øyvind Kolås
*/</FONT></I>
<I><FONT COLOR="#B22222">/* GeglOperationTemporal
* Base class for operations that want access to previous frames in a video sequence,
* it contains API to configure the amounts of frames to store as well as getting a
* GeglBuffer pointing to any of the previously stored frames.
*/</FONT></I>
#<B><FONT COLOR="#5F9EA0">ifndef</FONT></B> <FONT COLOR="#B8860B">__GEGL_OPERATION_TEMPORAL_H__</FONT>
#<B><FONT COLOR="#5F9EA0">define</FONT></B> <FONT COLOR="#B8860B">__GEGL_OPERATION_TEMPORAL_H__</FONT>
#<B><FONT COLOR="#5F9EA0">include</FONT></B> <B><FONT COLOR="#BC8F8F">"gegl-operation-filter.h"</FONT></B>
G_BEGIN_DECLS
#<B><FONT COLOR="#5F9EA0">define</FONT></B> <FONT COLOR="#B8860B">GEGL_TYPE_OPERATION_TEMPORAL</FONT> (gegl_operation_temporal_get_type ())
#<B><FONT COLOR="#5F9EA0">define</FONT></B> <B><FONT COLOR="#0000FF">GEGL_OPERATION_TEMPORAL</FONT></B>(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEGL_TYPE_OPERATION_TEMPORAL, GeglOperationTemporal))
#<B><FONT COLOR="#5F9EA0">define</FONT></B> <B><FONT COLOR="#0000FF">GEGL_OPERATION_TEMPORAL_CLASS</FONT></B>(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GEGL_TYPE_OPERATION_TEMPORAL, GeglOperationTemporalClass))
#<B><FONT COLOR="#5F9EA0">define</FONT></B> <B><FONT COLOR="#0000FF">GEGL_IS_OPERATION_TEMPORAL</FONT></B>(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEGL_TYPE_OPERATION_TEMPORAL))
#<B><FONT COLOR="#5F9EA0">define</FONT></B> <B><FONT COLOR="#0000FF">GEGL_IS_OPERATION_TEMPORAL_CLASS</FONT></B>(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GEGL_TYPE_OPERATION_TEMPORAL))
#<B><FONT COLOR="#5F9EA0">define</FONT></B> <B><FONT COLOR="#0000FF">GEGL_OPERATION_TEMPORAL_GET_CLASS</FONT></B>(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GEGL_TYPE_OPERATION_TEMPORAL, GeglOperationTemporalClass))
<B><FONT COLOR="#228B22">typedef</FONT></B> <B><FONT COLOR="#228B22">struct</FONT></B> _GeglOperationTemporal GeglOperationTemporal;
<B><FONT COLOR="#228B22">typedef</FONT></B> <B><FONT COLOR="#228B22">struct</FONT></B> _GeglOperationTemporalPrivate GeglOperationTemporalPrivate;
<B><FONT COLOR="#228B22">struct</FONT></B> _GeglOperationTemporal
{
GeglOperationFilter parent_instance;
GeglOperationTemporalPrivate *priv;
};
<B><FONT COLOR="#228B22">typedef</FONT></B> <B><FONT COLOR="#228B22">struct</FONT></B> _GeglOperationTemporalClass GeglOperationTemporalClass;
<B><FONT COLOR="#228B22">struct</FONT></B> _GeglOperationTemporalClass
{
GeglOperationFilterClass parent_class;
gboolean (* process) (GeglOperation *self,
GeglBuffer *input,
GeglBuffer *output,
<B><FONT COLOR="#228B22">const</FONT></B> GeglRectangle *roi,
gint level);
gpointer pad[4];
};
GType <B><FONT COLOR="#0000FF">gegl_operation_temporal_get_type</FONT></B> (<B><FONT COLOR="#228B22">void</FONT></B>) G_GNUC_CONST;
<B><FONT COLOR="#228B22">void</FONT></B> <B><FONT COLOR="#0000FF">gegl_operation_temporal_set_history_length</FONT></B> (GeglOperation *op,
gint history_length);
guint <B><FONT COLOR="#0000FF">gegl_operation_temporal_get_history_length</FONT></B> (GeglOperation *op);
<I><FONT COLOR="#B22222">/* you need to unref the buffer when you're done with it */</FONT></I>
GeglBuffer *<B><FONT COLOR="#0000FF">gegl_operation_temporal_get_frame</FONT></B> (GeglOperation *op,
gint frame);
G_END_DECLS
#<B><FONT COLOR="#5F9EA0">endif</FONT></B>
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