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89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
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/* GStreamer
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* Copyright (C) 2001 Wim Taymans <wim.taymans@chello.be>
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* 2004 Edward Hervey <bilboed@bilboed.com>
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*
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* gnloperation.h: Header for base GnlOperation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GNL_OPERATION_H__
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#define __GNL_OPERATION_H__
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#include <gst/gst.h>
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#include "gnlobject.h"
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G_BEGIN_DECLS
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#define GNL_TYPE_OPERATION \
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(gnl_operation_get_type())
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#define GNL_OPERATION(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GNL_TYPE_OPERATION,GnlOperation))
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#define GNL_OPERATION_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GNL_TYPE_OPERATION,GnlOperationClass))
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#define GNL_IS_OPERATION(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GNL_TYPE_OPERATION))
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#define GNL_IS_OPERATION_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GNL_TYPE_OPERATION))
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struct _GnlOperation
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{
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GnlObject parent;
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/* <private> */
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/* num_sinks:
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* Number of sink inputs of the controlled element.
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* -1 if the sink pads are dynamic */
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gint num_sinks;
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/* TRUE if element has request pads */
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gboolean dynamicsinks;
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/* realsinks:
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* Number of sink pads currently used on the contolled element. */
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gint realsinks;
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/* FIXME : We might need to use a lock to access this list */
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GList * sinks; /* The sink ghostpads */
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GstElement *element; /* controlled element */
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GstClockTime next_base_time;
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};
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struct _GnlOperationClass
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{
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GnlObjectClass parent_class;
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void (*input_priority_changed) (GnlOperation * operation, GstPad *pad, guint32 priority);
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};
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GstPad * get_unlinked_sink_ghost_pad (GnlOperation * operation);
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void
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gnl_operation_signal_input_priority_changed(GnlOperation * operation, GstPad *pad,
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guint32 priority);
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void gnl_operation_update_base_time (GnlOperation *operation,
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GstClockTime timestamp);
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/* normal GOperation stuff */
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GType gnl_operation_get_type (void);
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G_END_DECLS
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#endif /* __GNL_OPERATION_H__ */
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