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gst/gstelement.*: add gst_element_no_more_pads and the "no-more-pads" signal

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Original commit message from CVS:
* gst/gstelement.c: (gst_element_class_init),
(gst_element_no_more_pads):
* gst/gstelement.h:
add gst_element_no_more_pads and the "no-more-pads" signal
This commit is contained in:
Benjamin Otte 2004-05-10 16:48:44 +00:00
parent 683e6c359f
commit aafaa5b7e2
3 changed files with 37 additions and 1 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2004-05-10 Benjamin Otte <in7y118@public.uni-hamburg.de>
* gst/gstelement.c: (gst_element_class_init),
(gst_element_no_more_pads):
* gst/gstelement.h:
add gst_element_no_more_pads and the "no-more-pads" signal
2004-05-10 Benjamin Otte <in7y118@public.uni-hamburg.de> 2004-05-10 Benjamin Otte <in7y118@public.uni-hamburg.de>
* gst/gstregistry.c: (gst_registry_add_plugin): * gst/gstregistry.c: (gst_registry_add_plugin):

22
gst/gstelement.c
View file

@ -44,6 +44,7 @@ enum
ERROR, ERROR,
EOS, EOS,
FOUND_TAG, FOUND_TAG,
NO_MORE_PADS,
/* add more above */ /* add more above */
LAST_SIGNAL LAST_SIGNAL
}; };
@ -147,6 +148,10 @@ gst_element_class_init (GstElementClass * klass)
G_STRUCT_OFFSET (GstElementClass, found_tag), NULL, NULL, G_STRUCT_OFFSET (GstElementClass, found_tag), NULL, NULL,
gst_marshal_VOID__OBJECT_BOXED, G_TYPE_NONE, 2, GST_TYPE_ELEMENT, gst_marshal_VOID__OBJECT_BOXED, G_TYPE_NONE, 2, GST_TYPE_ELEMENT,
GST_TYPE_TAG_LIST); GST_TYPE_TAG_LIST);
gst_element_signals[FOUND_TAG] =
g_signal_new ("no-more-pads", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstElementClass, no_more_pads), NULL,
NULL, gst_marshal_VOID__VOID, G_TYPE_NONE, 0);
gobject_class->set_property = gobject_class->set_property =
GST_DEBUG_FUNCPTR (gst_element_real_set_property); GST_DEBUG_FUNCPTR (gst_element_real_set_property);
@ -1220,6 +1225,23 @@ gst_element_remove_ghost_pad (GstElement * element, GstPad * pad)
gst_element_remove_pad (element, pad); gst_element_remove_pad (element, pad);
} }
/**
* gst_element_no_more_pads:
* @element: a #GstElement
*
* Use this function to signal that the element does not expect any more pads
* to show up in the current pipeline. This function should be called whenever
* pads have been added by the element itself. Elements with GST_PAD_SOMETIMES
* pad templates use this in combination with autopluggers to figure out that
* the element is done initializing its pads.
*/
void
gst_element_no_more_pads (GstElement * element)
{
g_return_if_fail (GST_IS_ELEMENT (element));
g_signal_emit (element, gst_element_signals[NO_MORE_PADS], 0);
}
/** /**
* gst_element_get_pad: * gst_element_get_pad:

9
gst/gstelement.h
View file

@ -245,7 +245,11 @@ struct _GstElementClass {
void (*set_index) (GstElement *element, GstIndex *index); void (*set_index) (GstElement *element, GstIndex *index);
GstElementStateReturn (*set_state) (GstElement *element, GstElementState state); GstElementStateReturn (*set_state) (GstElement *element, GstElementState state);
gpointer _gst_reserved[GST_PADDING];
/* FIXME 0.9: move up to signals */
void (*no_more_pads) (GstElement *element);
gpointer _gst_reserved[GST_PADDING - 1];
}; };
void gst_element_class_add_pad_template (GstElementClass *klass, GstPadTemplate *templ); void gst_element_class_add_pad_template (GstElementClass *klass, GstPadTemplate *templ);
@ -313,7 +317,10 @@ GstScheduler* gst_element_get_scheduler (GstElement *element);
void gst_element_add_pad (GstElement *element, GstPad *pad); void gst_element_add_pad (GstElement *element, GstPad *pad);
void gst_element_remove_pad (GstElement *element, GstPad *pad); void gst_element_remove_pad (GstElement *element, GstPad *pad);
GstPad * gst_element_add_ghost_pad (GstElement *element, GstPad *pad, const gchar *name); GstPad * gst_element_add_ghost_pad (GstElement *element, GstPad *pad, const gchar *name);
#ifndef GST_DISABLE_DEPRECATED
void gst_element_remove_ghost_pad (GstElement *element, GstPad *pad); void gst_element_remove_ghost_pad (GstElement *element, GstPad *pad);
#endif
void gst_element_no_more_pads (GstElement *element);
GstPad* gst_element_get_pad (GstElement *element, const gchar *name); GstPad* gst_element_get_pad (GstElement *element, const gchar *name);
GstPad* gst_element_get_static_pad (GstElement *element, const gchar *name); GstPad* gst_element_get_static_pad (GstElement *element, const gchar *name);