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ac5674b03b
Original commit message from CVS: * gst/gstpad.c: (gst_pad_collect_array), (gst_pad_collectv), (gst_pad_collect), (gst_pad_collect_valist), (gst_pad_selectv), (gst_pad_select): * gst/gstpad.h: * gst/gstscheduler.c: (gst_scheduler_pad_select), (gst_scheduler_lock_element), (gst_scheduler_unlock_element): * gst/gstscheduler.h: implement gst_pad_collect as replacement for gst_pad_select. deprecate gst_pad_select and gst_scheduler_(un)lock_element add new flag GST_SCHEDULER_FLAG_NEW_API for API that implements the new pad_select, lock and unlock calls. * gst/cothreads.c: (cothread_destroy), (cothread_switch): * gst/cothreads.h: * gst/schedulers/cothreads_compat.h: * gst/schedulers/gthread-cothreads.h: remove unused cothread_lock and cothread_unlock calls * gst/schedulers/entryscheduler.c: (gst_entry_scheduler_class_init), (gst_entry_scheduler_init), (_can_schedule_loop), (gst_entry_scheduler_get_handler), (gst_entry_scheduler_pad_select): update to new API * gst/schedulers/gstbasicscheduler.c: (gst_basic_scheduler_class_init), (gst_basic_scheduler_init), (gst_basic_scheduler_pad_select): remove useless lock and unlock calls, update pad_select to new API (untested) * gst/schedulers/gstoptimalscheduler.c: (gst_opt_scheduler_class_init): remove useless select, lock and unlock function calls * gst/elements/gstaggregator.c: (gst_aggregator_loop): use gst_pad_collect instead of gst_pad_select
198 lines
8.1 KiB
C
198 lines
8.1 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstscheduler.h: Header for default scheduler code
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_SCHEDULER_H__
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#define __GST_SCHEDULER_H__
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#include <glib.h>
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#include <gst/gstelement.h>
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#include <gst/gstbin.h>
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G_BEGIN_DECLS
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#define GST_TYPE_SCHEDULER (gst_scheduler_get_type ())
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#define GST_SCHEDULER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SCHEDULER, GstScheduler))
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#define GST_IS_SCHEDULER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SCHEDULER))
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#define GST_SCHEDULER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SCHEDULER,GstSchedulerClass))
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#define GST_IS_SCHEDULER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SCHEDULER))
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#define GST_SCHEDULER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_SCHEDULER, GstSchedulerClass))
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typedef enum {
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/* this scheduler works with a fixed clock */
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GST_SCHEDULER_FLAG_FIXED_CLOCK = GST_OBJECT_FLAG_LAST,
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/* this scheduler supports select and lock calls */
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GST_SCHEDULER_FLAG_NEW_API,
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/* padding */
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GST_SCHEDULER_FLAG_LAST = GST_OBJECT_FLAG_LAST + 4
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} GstSchedulerFlags;
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#define GST_SCHEDULER_PARENT(sched) ((sched)->parent)
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#define GST_SCHEDULER_STATE(sched) ((sched)->state)
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/*typedef struct _GstScheduler GstScheduler; */
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/*typedef struct _GstSchedulerClass GstSchedulerClass; */
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typedef enum {
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GST_SCHEDULER_STATE_NONE,
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GST_SCHEDULER_STATE_RUNNING,
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GST_SCHEDULER_STATE_STOPPED,
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GST_SCHEDULER_STATE_ERROR
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} GstSchedulerState;
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struct _GstScheduler {
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GstObject object;
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GstElement *parent;
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GstScheduler *parent_sched;
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GstSchedulerState state;
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GstClock *clock;
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GstClock *current_clock;
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GList *clock_providers;
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GList *clock_receivers;
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GList *schedulers;
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstSchedulerClass {
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GstObjectClass parent_class;
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/* virtual methods */
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void (*setup) (GstScheduler *sched);
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void (*reset) (GstScheduler *sched);
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void (*add_element) (GstScheduler *sched, GstElement *element);
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void (*remove_element) (GstScheduler *sched, GstElement *element);
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void (*add_scheduler) (GstScheduler *sched, GstScheduler *sched2);
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void (*remove_scheduler) (GstScheduler *sched, GstScheduler *sched2);
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GstElementStateReturn (*state_transition) (GstScheduler *sched, GstElement *element, gint transition);
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void (*scheduling_change) (GstScheduler *sched, GstElement *element);
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/* next two are optional, require NEW_API flag */
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/* FIXME 0.9: rename to (un)lock_object */
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void (*lock_element) (GstScheduler *sched, GstObject *object);
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void (*unlock_element) (GstScheduler *sched, GstObject *object);
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gboolean (*yield) (GstScheduler *sched, GstElement *element);
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gboolean (*interrupt) (GstScheduler *sched, GstElement *element);
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void (*error) (GstScheduler *sched, GstElement *element);
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void (*pad_link) (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
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void (*pad_unlink) (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
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/* optional, requires NEW_API flag */
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GstData * (*pad_select) (GstScheduler *sched, GstPad **selected, GstPad **pads);
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GstClockReturn (*clock_wait) (GstScheduler *sched, GstElement *element,
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GstClockID id, GstClockTimeDiff *jitter);
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GstSchedulerState (*iterate) (GstScheduler *sched);
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/* for debugging */
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void (*show) (GstScheduler *sched);
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/* signals */
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void (*object_sync) (GstScheduler *sched, GstClock *clock, GstObject *object,
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GstClockID id);
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_scheduler_get_type (void);
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void gst_scheduler_setup (GstScheduler *sched);
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void gst_scheduler_reset (GstScheduler *sched);
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void gst_scheduler_add_element (GstScheduler *sched, GstElement *element);
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void gst_scheduler_remove_element (GstScheduler *sched, GstElement *element);
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void gst_scheduler_add_scheduler (GstScheduler *sched, GstScheduler *sched2);
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void gst_scheduler_remove_scheduler (GstScheduler *sched, GstScheduler *sched2);
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GstElementStateReturn gst_scheduler_state_transition (GstScheduler *sched, GstElement *element, gint transition);
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void gst_scheduler_scheduling_change (GstScheduler *sched, GstElement *element);
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#ifndef GST_DISABLE_DEPRECATED
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void gst_scheduler_lock_element (GstScheduler *sched, GstElement *element);
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void gst_scheduler_unlock_element (GstScheduler *sched, GstElement *element);
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#endif
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gboolean gst_scheduler_yield (GstScheduler *sched, GstElement *element);
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gboolean gst_scheduler_interrupt (GstScheduler *sched, GstElement *element);
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void gst_scheduler_error (GstScheduler *sched, GstElement *element);
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void gst_scheduler_pad_link (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
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void gst_scheduler_pad_unlink (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
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#ifndef GST_DISABLE_DEPRECATED
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GstPad* gst_scheduler_pad_select (GstScheduler *sched, GList *padlist);
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#endif
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GstClockReturn gst_scheduler_clock_wait (GstScheduler *sched, GstElement *element,
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GstClockID id, GstClockTimeDiff *jitter);
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gboolean gst_scheduler_iterate (GstScheduler *sched);
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void gst_scheduler_use_clock (GstScheduler *sched, GstClock *clock);
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void gst_scheduler_set_clock (GstScheduler *sched, GstClock *clock);
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GstClock* gst_scheduler_get_clock (GstScheduler *sched);
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void gst_scheduler_auto_clock (GstScheduler *sched);
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void gst_scheduler_show (GstScheduler *sched);
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/*
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* creating schedulers
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*
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*/
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#define GST_TYPE_SCHEDULER_FACTORY (gst_scheduler_factory_get_type ())
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#define GST_SCHEDULER_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SCHEDULER_FACTORY, GstSchedulerFactory))
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#define GST_IS_SCHEDULER_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SCHEDULER_FACTORY))
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#define GST_SCHEDULER_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SCHEDULER_FACTORY, GstSchedulerFactoryClass))
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#define GST_IS_SCHEDULER_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SCHEDULER_FACTORY))
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#define GST_SCHEDULER_FACTORY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_SCHEDULER_FACTORY, GstSchedulerFactoryClass))
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/* change this to change the default scheduler */
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#define GST_SCHEDULER_DEFAULT_NAME "opt"
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typedef struct _GstSchedulerFactory GstSchedulerFactory;
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typedef struct _GstSchedulerFactoryClass GstSchedulerFactoryClass;
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struct _GstSchedulerFactory {
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GstPluginFeature feature;
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gchar *longdesc; /* long description of the scheduler (well, don't overdo it..) */
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GType type; /* unique GType of the scheduler */
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstSchedulerFactoryClass {
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GstPluginFeatureClass parent;
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_scheduler_factory_get_type (void);
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GstSchedulerFactory* gst_scheduler_factory_new (const gchar *name, const gchar *longdesc, GType type);
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void gst_scheduler_factory_destroy (GstSchedulerFactory *factory);
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GstSchedulerFactory* gst_scheduler_factory_find (const gchar *name);
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GstScheduler* gst_scheduler_factory_create (GstSchedulerFactory *factory, GstElement *parent);
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GstScheduler* gst_scheduler_factory_make (const gchar *name, GstElement *parent);
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void gst_scheduler_factory_set_default_name (const gchar* name);
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G_CONST_RETURN gchar* gst_scheduler_factory_get_default_name (void);
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G_END_DECLS
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#endif /* __GST_SCHEDULER_H__ */
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