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/* GStreamer
* Copyright (C) 2001 Wim Taymans <wim.taymans@chello.be>
* 2004 Edward Hervey <bilboed@bilboed.com>
*
* nleoperation.h: Header for base NleOperation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __NLE_OPERATION_H__
#define __NLE_OPERATION_H__
#include <gst/gst.h>
#include "nleobject.h"
G_BEGIN_DECLS
#define NLE_TYPE_OPERATION \
(nle_operation_get_type())
#define NLE_OPERATION(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),NLE_TYPE_OPERATION,NleOperation))
#define NLE_OPERATION_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),NLE_TYPE_OPERATION,NleOperationClass))
#define NLE_IS_OPERATION(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),NLE_TYPE_OPERATION))
#define NLE_IS_OPERATION_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),NLE_TYPE_OPERATION))
struct _NleOperation
{
NleObject parent;
/* <private> */
/* num_sinks:
* Number of sink inputs of the controlled element.
* -1 if the sink pads are dynamic */
gint num_sinks;
/* TRUE if element has request pads */
gboolean dynamicsinks;
/* realsinks:
* Number of sink pads currently used on the contolled element. */
gint realsinks;
/* FIXME : We might need to use a lock to access this list */
GList * sinks; /* The sink ghostpads */
GstElement *element; /* controlled element */
GstClockTime next_base_time;
};
struct _NleOperationClass
{
NleObjectClass parent_class;
void (*input_priority_changed) (NleOperation * operation, GstPad *pad, guint32 priority);
};
GstPad * get_unlinked_sink_ghost_pad (NleOperation * operation) G_GNUC_INTERNAL;
void
nle_operation_signal_input_priority_changed(NleOperation * operation, GstPad *pad,
guint32 priority) G_GNUC_INTERNAL;
void nle_operation_update_base_time (NleOperation *operation,
GstClockTime timestamp) G_GNUC_INTERNAL;
void nle_operation_hard_cleanup (NleOperation *operation) G_GNUC_INTERNAL;
/* normal GOperation stuff */
GType nle_operation_get_type (void) G_GNUC_INTERNAL;
G_END_DECLS
#endif /* __NLE_OPERATION_H__ */
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