#ifndef __GST_SCHEDULER_H__
#define __GST_SCHEDULER_H__
+#include <glib.h>
+#include <gst/gstelement.h>
#include <gst/gstbin.h>
+G_BEGIN_DECLS
-#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_IS_SCHEDULER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SCHEDULER))
+#define GST_SCHEDULER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SCHEDULER,GstSchedulerClass))
+#define GST_IS_SCHEDULER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SCHEDULER))
+#define GST_SCHEDULER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_SCHEDULER, GstSchedulerClass))
+typedef enum {
+ /* this scheduler works with a fixed clock */
+ GST_SCHEDULER_FLAG_FIXED_CLOCK = GST_OBJECT_FLAG_LAST,
-void gst_bin_schedule_func(GstBin *bin);
+ /* padding */
+ GST_SCHEDULER_FLAG_LAST = GST_OBJECT_FLAG_LAST + 4
+} GstSchedulerFlags;
+#define GST_SCHEDULER_PARENT(sched) ((sched)->parent)
+#define GST_SCHEDULER_STATE(sched) ((sched)->state)
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
+/*typedef struct _GstScheduler GstScheduler; */
+/*typedef struct _GstSchedulerClass GstSchedulerClass; */
+typedef enum {
+ GST_SCHEDULER_STATE_NONE,
+ GST_SCHEDULER_STATE_RUNNING,
+ GST_SCHEDULER_STATE_STOPPED,
+ GST_SCHEDULER_STATE_ERROR
+} GstSchedulerState;
+
+struct _GstScheduler {
+ GstObject object;
+
+ GstElement *parent;
+ GstScheduler *parent_sched;
+
+ GstSchedulerState state;
+ GstClock *clock;
+ GstClock *current_clock;
+
+ GList *clock_providers;
+ GList *clock_receivers;
+
+ GList *schedulers;
+
+ gpointer _gst_reserved[GST_PADDING];
+};
+
+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);
+ void (*add_scheduler) (GstScheduler *sched, GstScheduler *sched2);
+ void (*remove_scheduler) (GstScheduler *sched, GstScheduler *sched2);
+ GstElementStateReturn (*state_transition) (GstScheduler *sched, GstElement *element, gint transition);
+ void (*scheduling_change) (GstScheduler *sched, GstElement *element);
+ void (*lock_element) (GstScheduler *sched, GstElement *element);
+ void (*unlock_element) (GstScheduler *sched, GstElement *element);
+ gboolean (*yield) (GstScheduler *sched, GstElement *element);
+ gboolean (*interrupt) (GstScheduler *sched, GstElement *element);
+ void (*error) (GstScheduler *sched, GstElement *element);
+ void (*pad_link) (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
+ void (*pad_unlink) (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
+ void (*pad_select) (GstScheduler *sched, GList *padlist);
+ GstClockReturn (*clock_wait) (GstScheduler *sched, GstElement *element,
+ GstClockID id, GstClockTimeDiff *jitter);
+ GstSchedulerState (*iterate) (GstScheduler *sched);
+ /* for debugging */
+ void (*show) (GstScheduler *sched);
+
+ /* signals */
+ void (*object_sync) (GstScheduler *sched, GstClock *clock, GstObject *object,
+ GstClockID id);
+
+ gpointer _gst_reserved[GST_PADDING];
+};
+
+GType gst_scheduler_get_type (void);
+
+
+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);
+void gst_scheduler_add_scheduler (GstScheduler *sched, GstScheduler *sched2);
+void gst_scheduler_remove_scheduler (GstScheduler *sched, GstScheduler *sched2);
+GstElementStateReturn gst_scheduler_state_transition (GstScheduler *sched, GstElement *element, gint transition);
+void gst_scheduler_scheduling_change (GstScheduler *sched, GstElement *element);
+void gst_scheduler_lock_element (GstScheduler *sched, GstElement *element);
+void gst_scheduler_unlock_element (GstScheduler *sched, GstElement *element);
+gboolean gst_scheduler_yield (GstScheduler *sched, GstElement *element);
+gboolean gst_scheduler_interrupt (GstScheduler *sched, GstElement *element);
+void gst_scheduler_error (GstScheduler *sched, GstElement *element);
+void gst_scheduler_pad_link (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
+void gst_scheduler_pad_unlink (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad);
+GstPad* gst_scheduler_pad_select (GstScheduler *sched, GList *padlist);
+GstClockReturn gst_scheduler_clock_wait (GstScheduler *sched, GstElement *element,
+ GstClockID id, GstClockTimeDiff *jitter);
+gboolean gst_scheduler_iterate (GstScheduler *sched);
+
+void gst_scheduler_use_clock (GstScheduler *sched, GstClock *clock);
+void gst_scheduler_set_clock (GstScheduler *sched, GstClock *clock);
+GstClock* gst_scheduler_get_clock (GstScheduler *sched);
+void gst_scheduler_auto_clock (GstScheduler *sched);
+
+void gst_scheduler_show (GstScheduler *sched);
+
+/*
+ * creating schedulers
+ *
+ */
+#define GST_TYPE_SCHEDULER_FACTORY (gst_scheduler_factory_get_type ())
+#define GST_SCHEDULER_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SCHEDULER_FACTORY, GstSchedulerFactory))
+#define GST_IS_SCHEDULER_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SCHEDULER_FACTORY))
+#define GST_SCHEDULER_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SCHEDULER_FACTORY, GstSchedulerFactoryClass))
+#define GST_IS_SCHEDULER_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SCHEDULER_FACTORY))
+#define GST_SCHEDULER_FACTORY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_SCHEDULER_FACTORY, GstSchedulerFactoryClass))
+
+/* change this to change the default scheduler */
+#define GST_SCHEDULER_DEFAULT_NAME "opt"
+
+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 */
+
+ gpointer _gst_reserved[GST_PADDING];
+};
+
+struct _GstSchedulerFactoryClass {
+ GstPluginFeatureClass parent;
+
+ gpointer _gst_reserved[GST_PADDING];
+};
+
+GType gst_scheduler_factory_get_type (void);
+
+GstSchedulerFactory* gst_scheduler_factory_new (const gchar *name, const gchar *longdesc, GType type);
+void gst_scheduler_factory_destroy (GstSchedulerFactory *factory);
+
+GstSchedulerFactory* gst_scheduler_factory_find (const gchar *name);
+
+GstScheduler* gst_scheduler_factory_create (GstSchedulerFactory *factory, GstElement *parent);
+GstScheduler* gst_scheduler_factory_make (const gchar *name, GstElement *parent);
+
+void gst_scheduler_factory_set_default_name (const gchar* name);
+G_CONST_RETURN gchar* gst_scheduler_factory_get_default_name (void);
+
+
+G_END_DECLS
#endif /* __GST_SCHEDULER_H__ */
projects / platform / upstream / gstreamer.git / blobdiff