mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-18 22:36:33 +00:00
087dee1f62
Original commit message from CVS: This is an attempt at not segfaulting on errors but reporting some usefull info instead. - bin changes so errors can propagate. - changed the _FAST macros to _CAST because that is what they do. - removed all references to cothreads out of the core, they are really a scheduler issue, handler with a sched_private gpointer. - added a live buffer count, for debugging buffer leaks. - added error checking in gst_scheduler_state_transition this solves the "out of cothreads" problem. - GST_ELEMENT_NO_ENTRY == GST_ELEMENT_INFINITE_LOOP - added 2 private element flasg for use by the scheduler (_COTHREAD_STOPPING) is now - added scheduler entry points: - _yield : to create possible scheduling points. - _interrupt: to stop execution of an element. - _error: to signal en error condition to the scheduler. - improved error messages for pads. - signal gst_element_error where appropriate. - added the a new bin to the parent before entering it so one can reference its children. - queue memleak fixes on dispose. - added possible deadlock detection in queue (turned off be default) - GstBasicScheduler is a real class of its own now, hiding its internal variables. - GST_ELEMENT_IS_COTHREAD_STOPPING is gone. either call explicit _yield operations, or make a sane loop. - Better state change handling in filesrc. Better error reporting/recovery too. - updated core plugins. - detect non decoupled elements on scheduler boundries and error.
150 lines
5.6 KiB
C
150 lines
5.6 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;
|
|
};
|
|
|
|
struct _GstSchedulerClass {
|
|
GstObjectClass parent_class;
|
|
|
|
/* virtual methods */
|
|
void (*setup) (GstScheduler *sched);
|
|
void (*reset) (GstScheduler *sched);
|
|
void (*add_element) (GstScheduler *sched, GstElement *element);
|
|
void (*remove_element) (GstScheduler *sched, GstElement *element);
|
|
GstElementStateReturn
|
|
(*state_transition) (GstScheduler *sched, GstElement *element, gint transition);
|
|
void (*lock_element) (GstScheduler *sched, GstElement *element);
|
|
void (*unlock_element) (GstScheduler *sched, GstElement *element);
|
|
void (*yield) (GstScheduler *sched, GstElement *element);
|
|
void (*interrupt) (GstScheduler *sched, GstElement *element);
|
|
void (*error) (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);
|
|
|
|
/* signals go here */
|
|
};
|
|
|
|
GType gst_scheduler_get_type (void);
|
|
|
|
#define gst_scheduler_destroy(sched) gst_object_destroy(GST_OBJECT(sched))
|
|
|
|
void gst_scheduler_setup (GstScheduler *sched);
|
|
void gst_scheduler_reset (GstScheduler *sched);
|
|
void gst_scheduler_add_element (GstScheduler *sched, GstElement *element);
|
|
void gst_scheduler_remove_element (GstScheduler *sched, GstElement *element);
|
|
GstElementStateReturn gst_scheduler_state_transition (GstScheduler *sched, GstElement *element, gint transition);
|
|
void gst_scheduler_lock_element (GstScheduler *sched, GstElement *element);
|
|
void gst_scheduler_unlock_element (GstScheduler *sched, GstElement *element);
|
|
void gst_scheduler_yield (GstScheduler *sched, GstElement *element);
|
|
void gst_scheduler_interrupt (GstScheduler *sched, GstElement *element);
|
|
void gst_scheduler_error (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__ */
|