gstreamer/gst/gstscheduler.h
wrobell 08eaa11259 - some fixes to int2float making automake 1.5 happy (gst now requires automake1.5). It's still not perfect but it bui...
Original commit message from CVS:
- added playondemand plugin by Leif Morgan Johnson <lmjohns3@eos.ncsu.edu>
- some fixes to int2float
- aplied a patch from wrobell <wrobell@ite.pl> that is a first attempt at
making automake 1.5 happy (gst now requires automake1.5). It's still not
perfect but it builds.
- Made the schedulers plugable. The default scheduler now lives inside a
plugin.
- Added a new mpeg1/2 parser/demuxer.
- Fixed some compiler warnings in the core libs.
- substantial work to GstThread (hopefully less race conditions). simplified
the code in GstThread a bit. A state change can now also happen in the
thread context.
- reworked the state semantics of a bin. it'll now automatically get the
highest state of its children.
- the autoplugger now nests the threads so that a state change failure of
one thread doesn't make its upstream thread lock.
- GstQueue refuses to go to PLAYING if the sinkpad is not connected. This
way the queue will not wedge in the _get lock.
- GstQueue unlocks its mutexes when going to PAUSED.
- make sure that when all elements in a bin/thread go to PAUSED, the bin
is set to PAUSED too.
- make a parent bin wait for its children to PAUSE before ending the
iteration with FALSE (EOS)
- Some changes to GstPlay to deal with EOS.
- aplied the latest patch from Zeenix to gstrtp.

end result: GstPlay doesn't crash on EOS and the pipeline is now shut down
properly.
2001-12-04 22:12:50 +00:00

143 lines
5.1 KiB
C

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstschedulerr.h: Header for default schedulerr code
*
* 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 __GST_SCHEDULER_H__
#define __GST_SCHEDULER_H__
#include <glib.h>
#include <gst/gstelement.h>
#include <gst/gstbin.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_SCHEDULER \
(gst_scheduler_get_type())
#define GST_SCHEDULER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SCHEDULER,GstScheduler))
#define GST_SCHEDULER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SCHEDULER,GstSchedulerClass))
#define GST_IS_SCHEDULER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SCHEDULER))
#define GST_IS_SCHEDULER_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SCHEDULER))
#define GST_SCHED_PARENT(sched) ((sched)->parent)
//typedef struct _GstScheduler GstScheduler;
//typedef struct _GstSchedulerClass GstSchedulerClass;
struct _GstScheduler {
GstObject object;
GstElement *parent;
GList *elements;
gint num_elements;
GList *chains;
gint num_chains;
};
struct _GstSchedulerClass {
GstObjectClass parent_class;
void (*add_element) (GstScheduler *sched, GstElement *element);
void (*remove_element) (GstScheduler *sched, GstElement *element);
void (*enable_element) (GstScheduler *sched, GstElement *element);
void (*disable_element) (GstScheduler *sched, GstElement *element);
void (*lock_element) (GstScheduler *sched, GstElement *element);
void (*unlock_element) (GstScheduler *sched, GstElement *element);
void (*pad_connect) (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
void (*pad_disconnect) (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
void (*pad_select) (GstScheduler *sched, GList *padlist);
gboolean (*iterate) (GstScheduler *sched);
/* for debugging */
void (*show) (GstScheduler *sched);
};
GType gst_scheduler_get_type (void);
void gst_scheduler_add_element (GstScheduler *sched, GstElement *element);
void gst_scheduler_remove_element (GstScheduler *sched, GstElement *element);
void gst_scheduler_enable_element (GstScheduler *sched, GstElement *element);
void gst_scheduler_disable_element (GstScheduler *sched, GstElement *element);
void gst_scheduler_lock_element (GstScheduler *sched, GstElement *element);
void gst_scheduler_unlock_element (GstScheduler *sched, GstElement *element);
void gst_scheduler_pad_connect (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
void gst_scheduler_pad_disconnect (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
GstPad* gst_scheduler_pad_select (GstScheduler *sched, GList *padlist);
gboolean gst_scheduler_iterate (GstScheduler *sched);
void gst_scheduler_show (GstScheduler *sched);
/*
* creating schedulers
*
*/
#define GST_TYPE_SCHEDULERFACTORY \
(gst_schedulerfactory_get_type ())
#define GST_SCHEDULERFACTORY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SCHEDULERFACTORY, GstSchedulerFactory))
#define GST_SCHEDULERFACTORY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SCHEDULERFACTORY, GstSchedulerFactoryClass))
#define GST_IS_SCHEDULERFACTORY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SCHEDULERFACTORY))
#define GST_IS_SCHEDULERFACTORY_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SCHEDULERFACTORY))
typedef struct _GstSchedulerFactory GstSchedulerFactory;
typedef struct _GstSchedulerFactoryClass GstSchedulerFactoryClass;
struct _GstSchedulerFactory {
GstPluginFeature feature;
gchar *longdesc; /* long description of the scheduler (well, don't overdo it..) */
GType type; /* unique GType of the scheduler */
};
struct _GstSchedulerFactoryClass {
GstPluginFeatureClass parent;
};
GType gst_schedulerfactory_get_type (void);
GstSchedulerFactory* gst_schedulerfactory_new (const gchar *name, const gchar *longdesc, GType type);
void gst_schedulerfactory_destroy (GstSchedulerFactory *factory);
GstSchedulerFactory* gst_schedulerfactory_find (const gchar *name);
GList* gst_schedulerfactory_get_list (void);
GstScheduler* gst_schedulerfactory_create (GstSchedulerFactory *factory, GstElement *parent);
GstScheduler* gst_schedulerfactory_make (const gchar *name, GstElement *parent);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_SCHEDULER_H__ */