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/* GStreamer
* Copyright (C) 2001 Wim Taymans <wim.taymans@gmail.com>
* 2004-2008 Edward Hervey <bilboed@bilboed.com>
*
* gnlobject.h: Header for base GnlObject
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GNL_OBJECT_H__
#define __GNL_OBJECT_H__
#include <gst/gst.h>
#include "gnltypes.h"
G_BEGIN_DECLS
#define GNL_TYPE_OBJECT \
(gnl_object_get_type())
#define GNL_OBJECT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GNL_TYPE_OBJECT,GnlObject))
#define GNL_OBJECT_CAST(obj) ((GnlObject*) (obj))
#define GNL_OBJECT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GNL_TYPE_OBJECT,GnlObjectClass))
#define GNL_OBJECT_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GNL_TYPE_OBJECT, GnlObjectClass))
#define GNL_IS_OBJECT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GNL_TYPE_OBJECT))
#define GNL_IS_OBJECT_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GNL_TYPE_OBJECT))
/**
* GnlObjectFlags:
* @GNL_OBJECT_IS_SOURCE:
* @GNL_OBJECT_IS_OPERATION:
* @GNL_OBJECT_IS_EXPANDABLE: The #GnlObject start/stop will extend accross the full composition.
* @GNL_OBJECT_LAST_FLAG:
*/
typedef enum
{
GNL_OBJECT_SOURCE = (GST_BIN_FLAG_LAST << 0),
GNL_OBJECT_OPERATION = (GST_BIN_FLAG_LAST << 1),
GNL_OBJECT_EXPANDABLE = (GST_BIN_FLAG_LAST << 2),
/* padding */
GNL_OBJECT_LAST_FLAG = (GST_BIN_FLAG_LAST << 16)
} GnlObjectFlags;
#define GNL_OBJECT_IS_SOURCE(obj) \
(GST_OBJECT_FLAG_IS_SET(obj, GNL_OBJECT_SOURCE))
#define GNL_OBJECT_IS_OPERATION(obj) \
(GST_OBJECT_FLAG_IS_SET(obj, GNL_OBJECT_OPERATION))
#define GNL_OBJECT_IS_EXPANDABLE(obj) \
(GST_OBJECT_FLAG_IS_SET(obj, GNL_OBJECT_EXPANDABLE))
/* For internal usage only */
#define GNL_OBJECT_START(obj) (GNL_OBJECT_CAST (obj)->start)
#define GNL_OBJECT_STOP(obj) (GNL_OBJECT_CAST (obj)->stop)
#define GNL_OBJECT_DURATION(obj) (GNL_OBJECT_CAST (obj)->duration)
#define GNL_OBJECT_MEDIA_START(obj) (GNL_OBJECT_CAST (obj)->media_start)
#define GNL_OBJECT_MEDIA_STOP(obj) (GNL_OBJECT_CAST (obj)->media_stop)
#define GNL_OBJECT_MEDIA_DURATION(obj) (GNL_OBJECT_CAST (obj)->media_duration)
#define GNL_OBJECT_PRIORITY(obj) (GNL_OBJECT_CAST (obj)->priority)
struct _GnlObject
{
GstBin parent;
/* Time positionning */
GstClockTime start;
GstClockTimeDiff duration;
/* read-only */
GstClockTime stop;
GstClockTime media_start;
GstClockTimeDiff media_duration;
/* read-only */
GstClockTime media_stop;
/* read-only */
gdouble rate;
/* TRUE if rate == 1.0 */
gboolean rate_1;
/* priority in parent */
guint32 priority;
/* active in parent */
gboolean active;
/* Filtering caps */
GstCaps *caps;
/* current segment seek <RO> */
gdouble segment_rate;
GstSeekFlags segment_flags;
gint64 segment_start;
gint64 segment_stop;
};
struct _GnlObjectClass
{
GstBinClass parent_class;
/* virtual methods for subclasses */
gboolean (*prepare) (GnlObject * object);
gboolean (*cleanup) (GnlObject * object);
};
GType gnl_object_get_type (void);
gboolean
gnl_object_to_media_time (GnlObject * object, GstClockTime otime,
GstClockTime * mtime);
gboolean
gnl_media_to_object_time (GnlObject * object, GstClockTime mtime,
GstClockTime * otime);
void
gnl_object_set_caps (GnlObject * object, const GstCaps * caps);
G_END_DECLS
#endif /* __GNL_OBJECT_H__ */
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