#include <gst/gstobject.h>
#include <gst/gstpad.h>
#include <gst/gstclock.h>
+#include <gst/gstelementfactory.h>
#include <gst/gstplugin.h>
#include <gst/gstpluginfeature.h>
#include <gst/gstindex.h>
#include <gst/gstiterator.h>
+#include <gst/gstmessage.h>
#include <gst/gsttag.h>
G_BEGIN_DECLS
-typedef struct _GstElementDetails GstElementDetails;
-
-/* FIXME: need translatable stuff in here (how handle in registry)? */
-struct _GstElementDetails
-{
- /*< public > */
- gchar *longname; /* long, english name */
- gchar *klass; /* type of element, as hierarchy */
- gchar *description; /* insights of one form or another */
- gchar *author; /* who wrote this thing? */
-
- /*< private > */
- gpointer _gst_reserved[GST_PADDING];
-};
+GST_EXPORT GType _gst_element_type;
-#define GST_ELEMENT_DETAILS(longname,klass,description,author) \
- { longname, klass, description, author, GST_PADDING_INIT }
-#define GST_IS_ELEMENT_DETAILS(details) ( \
- (details) && ((details)->longname != NULL) && ((details)->klass != NULL) \
- && ((details)->description != NULL) && ((details)->author != NULL))
+#define GST_TYPE_ELEMENT (_gst_element_type)
+#define GST_IS_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_ELEMENT))
+#define GST_IS_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_ELEMENT))
+#define GST_ELEMENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_ELEMENT, GstElementClass))
+#define GST_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_ELEMENT, GstElement))
+#define GST_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_ELEMENT, GstElementClass))
+#define GST_ELEMENT_CAST(obj) ((GstElement*)(obj))
#define GST_NUM_STATES 4
-
/* NOTE: this probably should be done with an #ifdef to decide
* whether to safe-cast or to just do the non-checking cast.
*/
#define GST_STATE_PAUSED_TO_READY ((GST_STATE_PAUSED<<8) | GST_STATE_READY)
#define GST_STATE_READY_TO_NULL ((GST_STATE_READY<<8) | GST_STATE_NULL)
-GST_EXPORT GType _gst_element_type;
-
-#define GST_TYPE_ELEMENT (_gst_element_type)
-#define GST_IS_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_ELEMENT))
-#define GST_IS_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_ELEMENT))
-#define GST_ELEMENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_ELEMENT, GstElementClass))
-#define GST_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_ELEMENT, GstElement))
-#define GST_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_ELEMENT, GstElementClass))
-#define GST_ELEMENT_CAST(obj) ((GstElement*)(obj))
-
/* convenience functions */
#ifdef G_HAVE_ISO_VARARGS
#define GST_ELEMENT_QUERY_TYPE_FUNCTION(functionname, ...) \
typedef enum
{
- /* input and output pads aren't directly coupled to each other
- examples: queues, multi-output async readers, etc. */
- GST_ELEMENT_DECOUPLED,
- /* this element, for some reason, has a loop function that performs
- * an infinite loop without calls to gst_element_yield () */
- GST_ELEMENT_INFINITE_LOOP,
- /* there is a new loopfunction ready for placement */
- GST_ELEMENT_NEW_LOOPFUNC,
- /* if this element can handle events */
- GST_ELEMENT_EVENT_AWARE,
-
/* private flags that can be used by the scheduler */
GST_ELEMENT_SCHEDULER_PRIVATE1,
GST_ELEMENT_SCHEDULER_PRIVATE2,
/* ignore state changes from parent */
GST_ELEMENT_LOCKED_STATE,
- /* element is in error */
- GST_ELEMENT_IN_ERROR,
+ /* the element is a sink */
+ GST_ELEMENT_IS_SINK,
/* use some padding for future expansion */
GST_ELEMENT_FLAG_LAST = GST_OBJECT_FLAG_LAST + 16
} GstElementFlags;
-#define GST_ELEMENT_IS_THREAD_SUGGESTED(obj) (GST_FLAG_IS_SET(obj,GST_ELEMENT_THREAD_SUGGESTED))
-#define GST_ELEMENT_IS_EVENT_AWARE(obj) (GST_FLAG_IS_SET(obj,GST_ELEMENT_EVENT_AWARE))
-#define GST_ELEMENT_IS_DECOUPLED(obj) (GST_FLAG_IS_SET(obj,GST_ELEMENT_DECOUPLED))
#define GST_ELEMENT_IS_LOCKED_STATE(obj) (GST_FLAG_IS_SET(obj,GST_ELEMENT_LOCKED_STATE))
#define GST_ELEMENT_NAME(obj) (GST_OBJECT_NAME(obj))
-#define GST_ELEMENT_PARENT(obj) (GST_OBJECT_PARENT(obj))
-#define GST_ELEMENT_SCHEDULER(obj) (GST_ELEMENT_CAST(obj)->sched)
+#define GST_ELEMENT_PARENT(obj) (GST_ELEMENT_CAST(GST_OBJECT_PARENT(obj)))
+#define GST_ELEMENT_MANAGER(obj) (GST_ELEMENT_CAST(obj)->manager)
+#define GST_ELEMENT_BUS(obj) (GST_ELEMENT_CAST(obj)->bus)
+#define GST_ELEMENT_SCHEDULER(obj) (GST_ELEMENT_CAST(obj)->scheduler)
#define GST_ELEMENT_CLOCK(obj) (GST_ELEMENT_CAST(obj)->clock)
#define GST_ELEMENT_PADS(obj) (GST_ELEMENT_CAST(obj)->pads)
* data processing error. The pipeline will throw an error signal and the
* application will be requested to stop further media processing.
*/
-#define GST_ELEMENT_ERROR(el, domain, code, message, debug) \
-G_STMT_START { \
- gchar *__msg = _gst_element_error_printf message; \
- gchar *__dbg = _gst_element_error_printf debug; \
- if (__msg) \
- GST_ERROR_OBJECT (el, "%s", __msg); \
- if (__dbg) \
- GST_ERROR_OBJECT (el, "%s", __dbg); \
- gst_element_error_full (GST_ELEMENT(el), \
- GST_ ## domain ## _ERROR, GST_ ## domain ## _ERROR_ ## code, \
- __msg, __dbg, __FILE__, GST_FUNCTION, __LINE__); \
+#define GST_ELEMENT_ERROR(el, domain, code, text, debug) \
+G_STMT_START { \
+ gchar *__txt = _gst_element_error_printf text; \
+ gchar *__dbg = _gst_element_error_printf debug; \
+ if (__txt) \
+ GST_ERROR_OBJECT (el, "%s", __txt); \
+ if (__dbg) \
+ GST_ERROR_OBJECT (el, "%s", __dbg); \
+ gst_element_message_full (GST_ELEMENT(el), GST_MESSAGE_ERROR, \
+ GST_ ## domain ## _ERROR, GST_ ## domain ## _ERROR_ ## code, \
+ __txt, __dbg, __FILE__, GST_FUNCTION, __LINE__); \
} G_STMT_END
-typedef struct _GstElementFactory GstElementFactory;
-typedef struct _GstElementFactoryClass GstElementFactoryClass;
-
-typedef void (*GstElementLoopFunction) (GstElement *element);
+/* log a (non-fatal) warning message and post it on the bus */
+#define GST_ELEMENT_WARNING(el, domain, code, text, debug) \
+G_STMT_START { \
+ gchar *__txt = _gst_element_error_printf text; \
+ gchar *__dbg = _gst_element_error_printf debug; \
+ if (__txt) \
+ GST_WARNING_OBJECT (el, "%s", __txt); \
+ if (__dbg) \
+ GST_WARNING_OBJECT (el, "%s", __dbg); \
+ gst_element_message_full (GST_ELEMENT(el), GST_MESSAGE_WARNING, \
+ GST_ ## domain ## _ERROR, GST_ ## domain ## _ERROR_ ## code, \
+ __txt, __dbg, __FILE__, GST_FUNCTION, __LINE__); \
+} G_STMT_END
/* the state change mutexes and conds */
#define GST_STATE_GET_LOCK(elem) (GST_ELEMENT_CAST(elem)->state_lock)
#define GST_STATE_SIGNAL(elem) g_cond_signal (GST_STATE_GET_COND (elem));
#define GST_STATE_BROADCAST(elem) g_cond_broadcast (GST_STATE_GET_COND (elem));
-struct _GstElement
+struct _GstElement
{
GstObject object;
gboolean state_error; /* flag is set when the element has an error in the last state
change. it is cleared when doing another state change. */
/*< public >*/ /* with LOCK */
- /* scheduling */
- GstElementLoopFunction loopfunc;
- GstScheduler *sched;
- /* private pointer for the scheduler */
- gpointer sched_private;
+ /* element manager */
+ GstPipeline *manager;
+ GstBus *bus;
+ GstScheduler *scheduler;
/* allocated clock */
GstClock *clock;
void (*new_pad) (GstElement *element, GstPad *pad);
void (*pad_removed) (GstElement *element, GstPad *pad);
void (*no_more_pads) (GstElement *element);
- void (*error) (GstElement *element, GstElement *source, GError *error, gchar *debug);
- void (*eos) (GstElement *element);
- void (*found_tag) (GstElement *element, GstElement *source, const GstTagList *tag_list);
/*< protected >*/
- /* vtable*/
+ /* vtable */
/* request/release pads */
GstPad* (*request_new_pad) (GstElement *element, GstPadTemplate *templ, const gchar* name);
void (*release_pad) (GstElement *element, GstPad *pad);
/* state changes */
+ GstElementStateReturn (*get_state) (GstElement * element, GstElementState * state,
+ GstElementState * pending, GTimeVal * timeout);
GstElementStateReturn (*change_state) (GstElement *element);
- GstElementStateReturn (*set_state) (GstElement *element, GstElementState state);
- /* scheduling */
- gboolean (*release_locks) (GstElement *element);
+ /* manager */
+ void (*set_manager) (GstElement * element, GstPipeline * pipeline);
+ void (*set_bus) (GstElement * element, GstBus * bus);
void (*set_scheduler) (GstElement *element, GstScheduler *scheduler);
/* set/get clocks */
GstIndex* (*get_index) (GstElement *element);
void (*set_index) (GstElement *element, GstIndex *index);
- /* query/convert/events functions */
- const GstEventMask* (*get_event_masks) (GstElement *element);
+ /* query functions */
gboolean (*send_event) (GstElement *element, GstEvent *event);
- const GstFormat* (*get_formats) (GstElement *element);
- gboolean (*convert) (GstElement *element,
- GstFormat src_format, gint64 src_value,
- GstFormat *dest_format, gint64 *dest_value);
+
const GstQueryType* (*get_query_types) (GstElement *element);
- gboolean (*query) (GstElement *element, GstQueryType type,
- GstFormat *format, gint64 *value);
+ gboolean (*query) (GstElement *element, GstQuery *query);
+
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
gboolean gst_element_provides_clock (GstElement *element);
GstClock* gst_element_get_clock (GstElement *element);
void gst_element_set_clock (GstElement *element, GstClock *clock);
-GstClockReturn gst_element_clock_wait (GstElement *element,
- GstClockID id, GstClockTimeDiff *jitter);
-GstClockTime gst_element_get_time (GstElement *element);
-gboolean gst_element_wait (GstElement *element, GstClockTime timestamp);
-void gst_element_set_time (GstElement *element, GstClockTime time);
-void gst_element_set_time_delay (GstElement *element, GstClockTime time, GstClockTime delay);
-
-void gst_element_adjust_time (GstElement *element, GstClockTimeDiff diff);
/* indexes */
gboolean gst_element_is_indexable (GstElement *element);
void gst_element_set_index (GstElement *element, GstIndex *index);
GstIndex* gst_element_get_index (GstElement *element);
-
-/* scheduling */
-void gst_element_set_loop_function (GstElement *element,
- GstElementLoopFunction loop);
-gboolean gst_element_release_locks (GstElement *element);
-void gst_element_yield (GstElement *element);
-gboolean gst_element_interrupt (GstElement *element);
+/* manager and tasks */
+void gst_element_set_manager (GstElement * element, GstPipeline * pipeline);
+GstPipeline * gst_element_get_manager (GstElement * element);
+void gst_element_set_bus (GstElement * element, GstBus * bus);
+GstBus * gst_element_get_bus (GstElement * element);
void gst_element_set_scheduler (GstElement *element, GstScheduler *sched);
GstScheduler* gst_element_get_scheduler (GstElement *element);
-GstBin* gst_element_get_managing_bin (GstElement *element);
/* pad management */
gboolean gst_element_add_pad (GstElement *element, GstPad *pad);
GstIterator * gst_element_iterate_pads (GstElement * element);
/* event/query/format stuff */
-G_CONST_RETURN GstEventMask*
- gst_element_get_event_masks (GstElement *element);
gboolean gst_element_send_event (GstElement *element, GstEvent *event);
gboolean gst_element_seek (GstElement *element, GstSeekType seek_type,
guint64 offset);
G_CONST_RETURN GstQueryType*
gst_element_get_query_types (GstElement *element);
-gboolean gst_element_query (GstElement *element, GstQueryType type,
- GstFormat *format, gint64 *value);
-G_CONST_RETURN GstFormat*
- gst_element_get_formats (GstElement *element);
-gboolean gst_element_convert (GstElement *element,
- GstFormat src_format, gint64 src_value,
- GstFormat *dest_format, gint64 *dest_value);
+gboolean gst_element_query (GstElement *element, GstQuery *query);
+
+/* messages */
+gboolean gst_element_post_message (GstElement * element, GstMessage * message);
/* error handling */
gchar * _gst_element_error_printf (const gchar *format, ...);
-void gst_element_error_full (GstElement *element, GQuark domain, gint code,
- gchar *message, gchar *debug,
- const gchar *file, const gchar *function, gint line);
-void gst_element_default_error (GObject *object, GstObject *orig, GError *error, gchar *debug);
-#define gst_element_default_deep_notify gst_object_default_deep_notify
+void gst_element_message_full (GstElement * element, GstMessageType type,
+ GQuark domain, gint code, gchar * text,
+ gchar * debug, const gchar * file,
+ const gchar * function, gint line);
/* state management */
-void gst_element_set_eos (GstElement *element);
-
gboolean gst_element_is_locked_state (GstElement *element);
gboolean gst_element_set_locked_state (GstElement *element, gboolean locked_state);
gboolean gst_element_sync_state_with_parent (GstElement *element);
-GstElementState gst_element_get_state (GstElement *element);
+GstElementStateReturn gst_element_get_state (GstElement * element,
+ GstElementState * state,
+ GstElementState * pending,
+ GTimeVal * timeout);
GstElementStateReturn gst_element_set_state (GstElement *element, GstElementState state);
-void gst_element_wait_state_change (GstElement *element);
+void gst_element_abort_state (GstElement * element);
+void gst_element_commit_state (GstElement * element);
+void gst_element_lost_state (GstElement * element);
/* factory management */
GstElementFactory* gst_element_get_factory (GstElement *element);
-
-/* misc */
-void gst_element_found_tags (GstElement *element, const GstTagList *tag_list);
-void gst_element_found_tags_for_pad (GstElement *element, GstPad *pad, GstClockTime timestamp,
- GstTagList *list);
-/*
- *
- * factories stuff
- *
- **/
-
-#define GST_TYPE_ELEMENT_FACTORY (gst_element_factory_get_type())
-#define GST_ELEMENT_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ELEMENT_FACTORY,\
- GstElementFactory))
-#define GST_ELEMENT_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ELEMENT_FACTORY,\
- GstElementFactoryClass))
-#define GST_IS_ELEMENT_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ELEMENT_FACTORY))
-#define GST_IS_ELEMENT_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ELEMENT_FACTORY))
-
-struct _GstElementFactory {
- GstPluginFeature parent;
-
- GType type; /* unique GType of element or 0 if not loaded */
-
- GstElementDetails details;
-
- GList * padtemplates;
- guint numpadtemplates;
-
- /* URI interface stuff */
- guint uri_type;
- gchar ** uri_protocols;
-
- GList * interfaces; /* interfaces this element implements */
-
- gpointer _gst_reserved[GST_PADDING];
-};
-
-struct _GstElementFactoryClass {
- GstPluginFeatureClass parent_class;
-
- gpointer _gst_reserved[GST_PADDING];
-};
-
-GType gst_element_factory_get_type (void);
-
-gboolean gst_element_register (GstPlugin *plugin,
- const gchar *name,
- guint rank,
- GType type);
-
-GstElementFactory * gst_element_factory_find (const gchar *name);
-GType gst_element_factory_get_element_type (GstElementFactory *factory);
-G_CONST_RETURN gchar * gst_element_factory_get_longname (GstElementFactory *factory);
-G_CONST_RETURN gchar * gst_element_factory_get_klass (GstElementFactory *factory);
-G_CONST_RETURN gchar * gst_element_factory_get_description (GstElementFactory *factory);
-G_CONST_RETURN gchar * gst_element_factory_get_author (GstElementFactory *factory);
-guint gst_element_factory_get_num_pad_templates (GstElementFactory *factory);
-G_CONST_RETURN GList * gst_element_factory_get_pad_templates (GstElementFactory *factory);
-guint gst_element_factory_get_uri_type (GstElementFactory *factory);
-gchar ** gst_element_factory_get_uri_protocols (GstElementFactory *factory);
-
-GstElement* gst_element_factory_create (GstElementFactory *factory,
- const gchar *name);
-GstElement* gst_element_factory_make (const gchar *factoryname, const gchar *name);
-
-gboolean gst_element_factory_can_src_caps (GstElementFactory *factory,
- const GstCaps *caps);
-gboolean gst_element_factory_can_sink_caps (GstElementFactory *factory,
- const GstCaps *caps);
-
-void __gst_element_factory_add_pad_template (GstElementFactory *elementfactory,
- GstPadTemplate *templ);
-void __gst_element_factory_add_interface (GstElementFactory *elementfactory,
- const gchar *interfacename);
-
G_END_DECLS
#endif /* __GST_ELEMENT_H__ */
-
projects / platform / upstream / gstreamer.git / blobdiff