* Core and plug-in writers can add and remove pads with gst_element_add_pad()
* and gst_element_remove_pad().
*
- * A pad of an element can be retrieved by name with gst_element_get_pad().
+ * An existing pad of an element can be retrieved by name with
+ * gst_element_get_static_pad(). A new dynamic pad can be created using
+ * gst_element_request_pad() with a #GstPadTemplate or
+ * gst_element_get_request_pad() with the template name such as "src_\%d".
* An iterator of all pads can be retrieved with gst_element_iterate_pads().
*
* Elements can be linked through their pads.
#include <gobject/gvaluecollector.h>
#include "gstelement.h"
-#include "gstelementdetails.h"
+#include "gstelementmetadata.h"
#include "gstenumtypes.h"
#include "gstbus.h"
#include "gstmarshal.h"
/* FILL ME */
};
-#ifdef GST_DISABLE_DEPRECATED
-#if !defined(GST_DISABLE_LOADSAVE) && !defined(GST_REMOVE_DEPRECATED)
-#include <libxml/parser.h>
-xmlNodePtr gst_object_save_thyself (const GstObject * object,
- xmlNodePtr parent);
-GstObject *gst_object_load_thyself (xmlNodePtr parent);
-void gst_pad_load_and_link (xmlNodePtr self, GstObject * parent);
-#endif
-#endif
-
static void gst_element_class_init (GstElementClass * klass);
static void gst_element_init (GstElement * element);
static void gst_element_base_class_init (gpointer g_class);
* gst_element_class_get_request_pad_template (GstElementClass *
element_class, const gchar * name);
-#if !defined(GST_DISABLE_LOADSAVE) && !defined(GST_REMOVE_DEPRECATED)
-static xmlNodePtr gst_element_save_thyself (GstObject * object,
- xmlNodePtr parent);
-static void gst_element_restore_thyself (GstObject * parent, xmlNodePtr self);
-#endif
-
static GstObjectClass *parent_class = NULL;
static guint gst_element_signals[LAST_SIGNAL] = { 0 };
gst_element_class_init (GstElementClass * klass)
{
GObjectClass *gobject_class;
- GstObjectClass *gstobject_class;
gobject_class = (GObjectClass *) klass;
- gstobject_class = (GstObjectClass *) klass;
parent_class = g_type_class_peek_parent (klass);
* usually be emitted from the context of the streaming thread. Also keep in
* mind that if you add new elements to the pipeline in the signal handler
* you will need to set them to the desired target state with
- * gst_element_set() or gst_element_sync_state_with_parent().
+ * gst_element_set_state() or gst_element_sync_state_with_parent().
*/
gst_element_signals[PAD_ADDED] =
g_signal_new ("pad-added", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
gobject_class->dispose = gst_element_dispose;
gobject_class->finalize = gst_element_finalize;
-#if !defined(GST_DISABLE_LOADSAVE) && !defined(GST_REMOVE_DEPRECATED)
- gstobject_class->save_thyself =
- ((gpointer (*)(GstObject * object,
- gpointer self)) * GST_DEBUG_FUNCPTR (gst_element_save_thyself));
- gstobject_class->restore_thyself =
- ((void (*)(GstObject * object,
- gpointer self)) *GST_DEBUG_FUNCPTR (gst_element_restore_thyself));
-#endif
-
klass->change_state = GST_DEBUG_FUNCPTR (gst_element_change_state_func);
klass->set_state = GST_DEBUG_FUNCPTR (gst_element_set_state_func);
klass->get_state = GST_DEBUG_FUNCPTR (gst_element_get_state_func);
gst_element_base_class_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- /* FIXME 0.11: Copy the element details and instead of clearing the
- * pad template list copy the list and increase the refcount of
- * the pad templates by one.
- *
- * This will make it possible to add pad templates and set element
- * details in the class_init functions and is the real GObject way
- * of doing things.
- * See http://bugzilla.gnome.org/show_bug.cgi?id=491501
+ GList *node, *padtemplates;
+
+ /* Copy the element details here so elements can inherit the
+ * details from their base class and classes only need to set
+ * the details in class_init instead of base_init */
+ element_class->metadata =
+ element_class->metadata ? gst_structure_copy (element_class->metadata) :
+ gst_structure_empty_new ("metadata");
+
+ /* Copy the pad templates so elements inherit them
+ * from their base class but elements can add pad templates in class_init
+ * instead of base_init.
*/
- memset (&element_class->details, 0, sizeof (GstElementDetails));
- element_class->meta_data = NULL;
- element_class->padtemplates = NULL;
+ padtemplates = g_list_copy (element_class->padtemplates);
+ for (node = padtemplates; node != NULL; node = node->next) {
+ GstPadTemplate *tmpl = (GstPadTemplate *) node->data;
+ gst_object_ref (tmpl);
+ }
+ element_class->padtemplates = padtemplates;
/* set the factory, see gst_element_register() */
element_class->elementfactory =
g_list_foreach (klass->padtemplates, (GFunc) gst_object_unref, NULL);
g_list_free (klass->padtemplates);
- __gst_element_details_clear (&klass->details);
- if (klass->meta_data) {
- gst_structure_free (klass->meta_data);
- klass->meta_data = NULL;
- }
+
+ gst_structure_free (klass->metadata);
}
static void
GST_STATE_PENDING (element) = GST_STATE_VOID_PENDING;
GST_STATE_RETURN (element) = GST_STATE_CHANGE_SUCCESS;
- /* FIXME 0.11: Store this directly in the instance struct */
- element->state_lock = g_slice_new (GStaticRecMutex);
- g_static_rec_mutex_init (element->state_lock);
+ g_static_rec_mutex_init (&element->state_lock);
element->state_cond = g_cond_new ();
}
/* ERRORS */
not_our_pad:
{
- /* FIXME, locking order? */
+ /* locking order is element > pad */
+ GST_OBJECT_UNLOCK (pad);
+
GST_OBJECT_LOCK (element);
+ GST_OBJECT_LOCK (pad);
g_critical ("Padname %s:%s does not belong to element %s when removing",
GST_DEBUG_PAD_NAME (pad), GST_ELEMENT_NAME (element));
- GST_OBJECT_UNLOCK (element);
GST_OBJECT_UNLOCK (pad);
+ GST_OBJECT_UNLOCK (element);
return FALSE;
}
}
}
pad = gst_element_get_static_pad (element, name);
- if (pad)
+ if (pad) {
gst_object_unref (pad);
- g_return_val_if_fail (pad == NULL, NULL);
+ /* FIXME 0.11: Change this to g_return_val_if_fail() */
+ g_critical ("Element %s already has a pad named %s, the behaviour of "
+ " gst_element_get_request_pad() for existing pads is undefined!",
+ GST_ELEMENT_NAME (element), name);
+ }
}
#endif
- if (oclass->request_new_pad_full)
- newpad = (oclass->request_new_pad_full) (element, templ, name, caps);
- else if (oclass->request_new_pad)
- newpad = (oclass->request_new_pad) (element, templ, name);
+ if (oclass->request_new_pad)
+ newpad = (oclass->request_new_pad) (element, templ, name, caps);
if (newpad)
gst_object_ref (newpad);
* @element: a #GstElement to find a request pad of.
* @name: the name of the request #GstPad to retrieve.
*
- * Retrieves a pad from the element by name. This version only retrieves
- * request pads. The pad should be released with
+ * Retrieves a pad from the element by name (e.g. "src_\%d"). This version only
+ * retrieves request pads. The pad should be released with
* gst_element_release_request_pad().
*
* This method is slow and will be deprecated in the future. New code should
* request. Can be %NULL.
*
* Retrieves a request pad from the element according to the provided template.
+ * Pad templates can be looked up using
+ * gst_element_factory_get_static_pad_templates().
*
* If the @caps are specified and the element implements thew new
* request_new_pad_full virtual method, the element will use them to select
return _gst_element_request_pad (element, templ, name, caps);
}
-/**
- * gst_element_get_pad:
- * @element: a #GstElement.
- * @name: the name of the pad to retrieve.
- *
- * Retrieves a pad from @element by name. Tries gst_element_get_static_pad()
- * first, then gst_element_get_request_pad().
- *
- * Deprecated: This function is deprecated as it's unclear if the reference
- * to the result pad should be released with gst_object_unref() in case of a static pad
- * or gst_element_release_request_pad() in case of a request pad.
- * Use gst_element_get_static_pad() or gst_element_get_request_pad() instead.
- *
- * Returns: (transfer full): the #GstPad if found, otherwise %NULL. Unref or Release after usage,
- * depending on the type of the pad.
- */
-#ifndef GST_REMOVE_DEPRECATED
-#ifdef GST_DISABLE_DEPRECATED
-GstPad *gst_element_get_pad (GstElement * element, const gchar * name);
-#endif
-GstPad *
-gst_element_get_pad (GstElement * element, const gchar * name)
-{
- GstPad *pad;
-
- g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
- g_return_val_if_fail (name != NULL, NULL);
-
- pad = gst_element_get_static_pad (element, name);
- if (!pad)
- pad = gst_element_get_request_pad (element, name);
-
- return pad;
-}
-#endif /* GST_REMOVE_DEPRECATED */
-
-static GstIteratorItem
-iterate_pad (GstIterator * it, GstPad * pad)
-{
- gst_object_ref (pad);
- return GST_ITERATOR_ITEM_PASS;
-}
-
static GstIterator *
gst_element_iterate_pad_list (GstElement * element, GList ** padlist)
{
GstIterator *result;
GST_OBJECT_LOCK (element);
- gst_object_ref (element);
result = gst_iterator_new_list (GST_TYPE_PAD,
GST_OBJECT_GET_LOCK (element),
- &element->pads_cookie,
- padlist,
- element,
- (GstIteratorItemFunction) iterate_pad,
- (GstIteratorDisposeFunction) gst_object_unref);
+ &element->pads_cookie, padlist, (GObject *) element, NULL);
GST_OBJECT_UNLOCK (element);
return result;
* gst_element_iterate_pads:
* @element: a #GstElement to iterate pads of.
*
- * Retrieves an iterattor of @element's pads. The iterator should
- * be freed after usage.
+ * Retrieves an iterator of @element's pads. The iterator should
+ * be freed after usage. Also more specialized iterators exists such as
+ * gst_element_iterate_src_pads() or gst_element_iterate_sink_pads().
*
* Returns: (transfer full): the #GstIterator of #GstPad. Unref each pad
* after use.
/**
* gst_element_class_add_pad_template:
* @klass: the #GstElementClass to add the pad template to.
- * @templ: (transfer none): a #GstPadTemplate to add to the element class.
+ * @templ: (transfer full): a #GstPadTemplate to add to the element class.
+ *
+ * Adds a padtemplate to an element class. This is mainly used in the _class_init
+ * functions of classes. If a pad template with the same name as an already
+ * existing one is added the old one is replaced by the new one.
*
- * Adds a padtemplate to an element class. This is mainly used in the _base_init
- * functions of classes.
*/
void
gst_element_class_add_pad_template (GstElementClass * klass,
GstPadTemplate * templ)
{
+ GList *template_list = klass->padtemplates;
+
g_return_if_fail (GST_IS_ELEMENT_CLASS (klass));
g_return_if_fail (GST_IS_PAD_TEMPLATE (templ));
- /* FIXME 0.11: allow replacing the pad templates by
- * calling this with the same name as an already existing pad
- * template. For this we _must_ _not_ ref the added pad template
- * a second time and _must_ document that this function takes
- * ownership of the pad template. Otherwise we will leak pad templates
- * or the caller unref's the pad template and it disappears */
- /* avoid registering pad templates with the same name */
- g_return_if_fail (gst_element_class_get_pad_template (klass,
- templ->name_template) == NULL);
-
- klass->padtemplates = g_list_append (klass->padtemplates,
- gst_object_ref (templ));
- klass->numpadtemplates++;
-}
+ /* If we already have a pad template with the same name replace the
+ * old one. */
+ while (template_list) {
+ GstPadTemplate *padtempl = (GstPadTemplate *) template_list->data;
-static void
-gst_element_class_add_meta_data (GstElementClass * klass,
- const gchar * key, const gchar * value)
-{
- if (!klass->meta_data) {
- /* FIXME: use a quark for "metadata" */
- klass->meta_data = gst_structure_empty_new ("metadata");
+ /* Found pad with the same name, replace and return */
+ if (strcmp (templ->name_template, padtempl->name_template) == 0) {
+ gst_object_unref (padtempl);
+ template_list->data = templ;
+ return;
+ }
+ template_list = g_list_next (template_list);
}
- gst_structure_set ((GstStructure *) klass->meta_data,
- key, G_TYPE_STRING, value, NULL);
-}
-
-/**
- * gst_element_class_set_documentation_uri:
- * @klass: class to set details for
- * @uri: uri of element documentation
- *
- * Set uri pointing to user documentation. Applications can use this to show
- * help for e.g. effects to users.
- *
- * Since: 0.10.31
- */
-void
-gst_element_class_set_documentation_uri (GstElementClass * klass,
- const gchar * uri)
-{
- g_return_if_fail (GST_IS_ELEMENT_CLASS (klass));
-
- gst_element_class_add_meta_data (klass, "doc-uri", uri);
-}
+ /* Take ownership of the floating ref */
+ g_object_ref_sink (templ);
-/**
- * gst_element_class_set_icon_name:
- * @klass: class to set details for
- * @name: name of an icon
- *
- * Elements that bridge to certain other products can include an icon of that
- * used product. Application can show the icon in menus/selectors to help
- * identifying specific elements.
- *
- * Since: 0.10.31
- */
-void
-gst_element_class_set_icon_name (GstElementClass * klass, const gchar * name)
-{
- g_return_if_fail (GST_IS_ELEMENT_CLASS (klass));
-
- gst_element_class_add_meta_data (klass, "icon-name", name);
+ klass->padtemplates = g_list_append (klass->padtemplates, templ);
+ klass->numpadtemplates++;
}
-/* FIXME-0.11: deprecate and remove gst_element_class_set_details*() */
/**
- * gst_element_class_set_details:
- * @klass: class to set details for
- * @details: details to set
- *
- * Sets the detailed information for a #GstElementClass.
- * <note>This function is for use in _base_init functions only.</note>
- *
- * The @details are copied.
+ * gst_element_class_add_metadata:
+ * @klass: class to set metadata for
+ * @key: the key to set
+ * @value: the value to set
*
- * Deprecated: Use gst_element_class_set_details_simple() instead.
+ * Set @key with @value as metadata in @klass.
*/
-#ifndef GST_REMOVE_DEPRECATED
-#ifdef GST_DISABLE_DEPRECATED
-void gst_element_class_set_details (GstElementClass * klass,
- const GstElementDetails * details);
-#endif
void
-gst_element_class_set_details (GstElementClass * klass,
- const GstElementDetails * details)
+gst_element_class_add_metadata (GstElementClass * klass,
+ const gchar * key, const gchar * value)
{
g_return_if_fail (GST_IS_ELEMENT_CLASS (klass));
- g_return_if_fail (GST_IS_ELEMENT_DETAILS (details));
+ g_return_if_fail (key != NULL);
+ g_return_if_fail (value != NULL);
- __gst_element_details_copy (&klass->details, details);
+ gst_structure_set ((GstStructure *) klass->metadata,
+ key, G_TYPE_STRING, value, NULL);
}
-#endif
/**
- * gst_element_class_set_details_simple:
- * @klass: class to set details for
+ * gst_element_class_set_metadata:
+ * @klass: class to set metadata for
* @longname: The long English name of the element. E.g. "File Sink"
* @classification: String describing the type of element, as an unordered list
* separated with slashes ('/'). See draft-klass.txt of the design docs
* @description: Sentence describing the purpose of the element.
* E.g: "Write stream to a file"
* @author: Name and contact details of the author(s). Use \n to separate
- * multiple author details. E.g: "Joe Bloggs <joe.blogs at foo.com>"
- *
- * Sets the detailed information for a #GstElementClass. Simpler version of
- * gst_element_class_set_details() that generates less linker overhead.
- * <note>This function is for use in _base_init functions only.</note>
- *
- * The detail parameter strings are copied into the #GstElementDetails for
- * the element class.
+ * multiple author metadata. E.g: "Joe Bloggs <joe.blogs at foo.com>"
*
- * Since: 0.10.14
+ * Sets the detailed information for a #GstElementClass.
+ * <note>This function is for use in _class_init functions only.</note>
*/
void
-gst_element_class_set_details_simple (GstElementClass * klass,
+gst_element_class_set_metadata (GstElementClass * klass,
const gchar * longname, const gchar * classification,
const gchar * description, const gchar * author)
{
- const GstElementDetails details =
- GST_ELEMENT_DETAILS ((gchar *) longname, (gchar *) classification,
- (gchar *) description, (gchar *) author);
-
g_return_if_fail (GST_IS_ELEMENT_CLASS (klass));
- __gst_element_details_copy (&klass->details, &details);
+ gst_structure_set ((GstStructure *) klass->metadata,
+ GST_ELEMENT_METADATA_LONGNAME, G_TYPE_STRING, longname,
+ GST_ELEMENT_METADATA_KLASS, G_TYPE_STRING, classification,
+ GST_ELEMENT_METADATA_DESCRIPTION, G_TYPE_STRING, description,
+ GST_ELEMENT_METADATA_AUTHOR, G_TYPE_STRING, author, NULL);
+}
+
+/**
+ * gst_element_class_get_metadata:
+ * @klass: class to get metadata for
+ * @key: the key to get
+ *
+ * Get metadata with @key in @klass.
+ *
+ * Returns: the metadata for @key.
+ */
+const gchar *
+gst_element_class_get_metadata (GstElementClass * klass, const gchar * key)
+{
+ g_return_val_if_fail (GST_IS_ELEMENT_CLASS (klass), NULL);
+ g_return_val_if_fail (key != NULL, NULL);
+
+ return gst_structure_get_string ((GstStructure *) klass->metadata, key);
}
/**
} else {
GST_CAT_INFO (GST_CAT_ELEMENT_PADS, "can't send %s event on element %s",
GST_EVENT_TYPE_NAME (event), GST_ELEMENT_NAME (element));
+ gst_event_unref (event);
}
return result;
}
if (ret == GST_STATE_CHANGE_FAILURE)
goto done;
- /* we got no_preroll, report immediatly */
+ /* we got no_preroll, report immediately */
if (ret == GST_STATE_CHANGE_NO_PREROLL)
goto done;
*
* This function returns %GST_STATE_CHANGE_NO_PREROLL if the element
* successfully changed its state but is not able to provide data yet.
- * This mostly happens for live sources that only produce data in
+ * This mostly happens for live sources that only produce data in
* %GST_STATE_PLAYING. While the state change return is equivalent to
* %GST_STATE_CHANGE_SUCCESS, it is returned to the application to signal that
* some sink elements might not be able to complete their state change because
}
}
+/* Not static because GstBin has manual state handling too */
+void
+_priv_gst_element_state_changed (GstElement * element, GstState oldstate,
+ GstState newstate, GstState pending)
+{
+ GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
+ GstMessage *message;
+
+ GST_CAT_INFO_OBJECT (GST_CAT_STATES, element,
+ "notifying about state-changed %s to %s (%s pending)",
+ gst_element_state_get_name (oldstate),
+ gst_element_state_get_name (newstate),
+ gst_element_state_get_name (pending));
+
+ if (klass->state_changed)
+ klass->state_changed (element, oldstate, newstate, pending);
+
+ message = gst_message_new_state_changed (GST_OBJECT_CAST (element),
+ oldstate, newstate, pending);
+ gst_element_post_message (element, message);
+}
+
/**
* gst_element_continue_state:
* @element: a #GstElement to continue the state change of.
GstStateChangeReturn old_ret;
GstState old_state, old_next;
GstState current, next, pending;
- GstMessage *message;
GstStateChange transition;
GST_OBJECT_LOCK (element);
gst_element_state_get_name (old_next),
gst_element_state_get_name (pending), gst_element_state_get_name (next));
- message = gst_message_new_state_changed (GST_OBJECT_CAST (element),
- old_state, old_next, pending);
- gst_element_post_message (element, message);
+ _priv_gst_element_state_changed (element, old_state, old_next, pending);
GST_CAT_INFO_OBJECT (GST_CAT_STATES, element,
"continue state change %s to %s, final %s",
* previous return value.
* We do signal the cond though as a _get_state() might be blocking
* on it. */
- if (old_state != old_next || old_ret == GST_STATE_CHANGE_ASYNC) {
- GST_CAT_INFO_OBJECT (GST_CAT_STATES, element,
- "posting state-changed %s to %s",
- gst_element_state_get_name (old_state),
- gst_element_state_get_name (old_next));
- message =
- gst_message_new_state_changed (GST_OBJECT_CAST (element), old_state,
- old_next, GST_STATE_VOID_PENDING);
- gst_element_post_message (element, message);
- }
+ if (old_state != old_next || old_ret == GST_STATE_CHANGE_ASYNC)
+ _priv_gst_element_state_changed (element, old_state, old_next,
+ GST_STATE_VOID_PENDING);
GST_STATE_BROADCAST (element);
}
/**
- * gst_element_lost_state_full:
+ * gst_element_lost_state:
* @element: a #GstElement the state is lost of
- * @new_base_time: if a new base time should be distributed
*
* Brings the element to the lost state. The current state of the
* element is copied to the pending state so that any call to
* gst_element_get_state() will return %GST_STATE_CHANGE_ASYNC.
*
- * An ASYNC_START message is posted with indication to distribute a new
- * base_time to the element when @new_base_time is %TRUE.
- * If the element was PLAYING, it will go to PAUSED. The element
- * will be restored to its PLAYING state by the parent pipeline when it
- * prerolls again.
+ * An ASYNC_START message is posted. If the element was PLAYING, it will
+ * go to PAUSED. The element will be restored to its PLAYING state by
+ * the parent pipeline when it prerolls again.
*
* This is mostly used for elements that lost their preroll buffer
* in the %GST_STATE_PAUSED or %GST_STATE_PLAYING state after a flush,
*
* This function is used internally and should normally not be called from
* plugins or applications.
- *
- * MT safe.
- *
- * Since: 0.10.24
*/
void
-gst_element_lost_state_full (GstElement * element, gboolean new_base_time)
+gst_element_lost_state (GstElement * element)
{
GstState old_state, new_state;
GstMessage *message;
GST_STATE_NEXT (element) = new_state;
GST_STATE_PENDING (element) = new_state;
GST_STATE_RETURN (element) = GST_STATE_CHANGE_ASYNC;
- if (new_base_time)
- GST_ELEMENT_START_TIME (element) = 0;
GST_OBJECT_UNLOCK (element);
- message = gst_message_new_state_changed (GST_OBJECT_CAST (element),
- new_state, new_state, new_state);
- gst_element_post_message (element, message);
+ _priv_gst_element_state_changed (element, new_state, new_state, new_state);
- message =
- gst_message_new_async_start (GST_OBJECT_CAST (element), new_base_time);
+ message = gst_message_new_async_start (GST_OBJECT_CAST (element));
gst_element_post_message (element, message);
return;
{
GST_OBJECT_UNLOCK (element);
- message = gst_message_new_async_start (GST_OBJECT_CAST (element), TRUE);
+ message = gst_message_new_async_start (GST_OBJECT_CAST (element));
gst_element_post_message (element, message);
return;
}
}
/**
- * gst_element_lost_state:
- * @element: a #GstElement the state is lost of
- *
- * Brings the element to the lost state. This function calls
- * gst_element_lost_state_full() with the new_base_time set to %TRUE.
- *
- * This function is used internally and should normally not be called from
- * plugins or applications.
- *
- * MT safe.
- */
-void
-gst_element_lost_state (GstElement * element)
-{
- gst_element_lost_state_full (element, TRUE);
-}
-
-/**
* gst_element_set_state:
* @element: a #GstElement to change state of.
* @state: the element's new #GstState.
}
/* gst_iterator_fold functions for pads_activate
- * Note how we don't stop the iterator when we fail an activation. This is
- * probably a FIXME since when one pad activation fails, we don't want to
- * continue our state change. */
+ * Stop the iterator if activating one pad failed. */
static gboolean
-activate_pads (GstPad * pad, GValue * ret, gboolean * active)
+activate_pads (const GValue * vpad, GValue * ret, gboolean * active)
{
- if (!gst_pad_set_active (pad, *active))
- g_value_set_boolean (ret, FALSE);
+ GstPad *pad = g_value_get_object (vpad);
+ gboolean cont = TRUE;
- /* unref the object that was reffed for us by _fold */
- gst_object_unref (pad);
- return TRUE;
-}
+ if (!(cont = gst_pad_set_active (pad, *active)))
+ g_value_set_boolean (ret, FALSE);
-/* set the caps on the pad to NULL */
-static gboolean
-clear_caps (GstPad * pad, GValue * ret, gboolean * active)
-{
- gst_pad_set_caps (pad, NULL);
- gst_object_unref (pad);
- return TRUE;
+ return cont;
}
-/* returns false on error or early cutout (will never happen because the fold
- * function always returns TRUE, see FIXME above) of the fold, true if all
+/* returns false on error or early cutout of the fold, true if all
* pads in @iter were (de)activated successfully. */
static gboolean
iterator_activate_fold_with_resync (GstIterator * iter,
if (G_UNLIKELY (!res))
goto sink_failed;
- if (!active) {
- /* clear the caps on all pads, this should never fail */
- iter = gst_element_iterate_pads (element);
- res =
- iterator_activate_fold_with_resync (iter,
- (GstIteratorFoldFunction) clear_caps, &active);
- gst_iterator_free (iter);
- if (G_UNLIKELY (!res))
- goto caps_failed;
- }
-
GST_CAT_DEBUG_OBJECT (GST_CAT_ELEMENT_PADS, element,
"pads_activate successful");
"sink pads_activate failed");
return FALSE;
}
-caps_failed:
- {
- GST_CAT_DEBUG_OBJECT (GST_CAT_ELEMENT_PADS, element,
- "failed to clear caps on pads");
- return FALSE;
- }
}
/* is called with STATE_LOCK */
{
GstState state, next;
GstStateChangeReturn result = GST_STATE_CHANGE_SUCCESS;
- GstClock **clock_p;
g_return_val_if_fail (GST_IS_ELEMENT (element), GST_STATE_CHANGE_FAILURE);
ready->paused but the element might not have made it to paused */
if (!gst_element_pads_activate (element, FALSE)) {
result = GST_STATE_CHANGE_FAILURE;
- } else {
- gst_element_set_base_time (element, 0);
}
-
- /* In null state release the reference to the clock */
- GST_OBJECT_LOCK (element);
- clock_p = &element->clock;
- gst_object_replace ((GstObject **) clock_p, NULL);
- GST_OBJECT_UNLOCK (element);
break;
default:
/* this will catch real but unhandled state changes;
GST_CAT_INFO_OBJECT (GST_CAT_REFCOUNTING, element, "finalize");
- GST_STATE_LOCK (element);
- if (element->state_cond)
- g_cond_free (element->state_cond);
- element->state_cond = NULL;
- GST_STATE_UNLOCK (element);
- g_static_rec_mutex_free (element->state_lock);
- g_slice_free (GStaticRecMutex, element->state_lock);
- element->state_lock = NULL;
+ g_cond_free (element->state_cond);
+ g_static_rec_mutex_free (&element->state_lock);
GST_CAT_INFO_OBJECT (GST_CAT_REFCOUNTING, element, "finalize parent");
G_OBJECT_CLASS (parent_class)->finalize (object);
}
-#if !defined(GST_DISABLE_LOADSAVE) && !defined(GST_REMOVE_DEPRECATED)
-/**
- * gst_element_save_thyself:
- * @element: a #GstElement to save.
- * @parent: the xml parent node.
- *
- * Saves the element as part of the given XML structure.
- *
- * Returns: the new #xmlNodePtr.
- */
-static xmlNodePtr
-gst_element_save_thyself (GstObject * object, xmlNodePtr parent)
-{
- GList *pads;
- GstElementClass *oclass;
- GParamSpec **specs, *spec;
- guint nspecs;
- guint i;
- GValue value = { 0, };
- GstElement *element;
-
- g_return_val_if_fail (GST_IS_ELEMENT (object), parent);
-
- element = GST_ELEMENT_CAST (object);
-
- oclass = GST_ELEMENT_GET_CLASS (element);
-
- xmlNewChild (parent, NULL, (xmlChar *) "name",
- (xmlChar *) GST_ELEMENT_NAME (element));
-
- if (oclass->elementfactory != NULL) {
- GstElementFactory *factory = (GstElementFactory *) oclass->elementfactory;
-
- xmlNewChild (parent, NULL, (xmlChar *) "type",
- (xmlChar *) GST_PLUGIN_FEATURE (factory)->name);
- }
-
- /* params */
- specs = g_object_class_list_properties (G_OBJECT_GET_CLASS (object), &nspecs);
-
- for (i = 0; i < nspecs; i++) {
- spec = specs[i];
- if (spec->flags & G_PARAM_READABLE) {
- xmlNodePtr param;
- char *contents;
-
- g_value_init (&value, spec->value_type);
-
- g_object_get_property (G_OBJECT (element), spec->name, &value);
- param = xmlNewChild (parent, NULL, (xmlChar *) "param", NULL);
- xmlNewChild (param, NULL, (xmlChar *) "name", (xmlChar *) spec->name);
-
- if (G_IS_PARAM_SPEC_STRING (spec))
- contents = g_value_dup_string (&value);
- else if (G_IS_PARAM_SPEC_ENUM (spec))
- contents = g_strdup_printf ("%d", g_value_get_enum (&value));
- else if (G_IS_PARAM_SPEC_INT64 (spec))
- contents = g_strdup_printf ("%" G_GINT64_FORMAT,
- g_value_get_int64 (&value));
- else if (GST_VALUE_HOLDS_STRUCTURE (&value)) {
- if (g_value_get_boxed (&value) != NULL) {
- contents = g_strdup_value_contents (&value);
- } else {
- contents = g_strdup ("NULL");
- }
- } else
- contents = g_strdup_value_contents (&value);
-
- xmlNewChild (param, NULL, (xmlChar *) "value", (xmlChar *) contents);
- g_free (contents);
-
- g_value_unset (&value);
- }
- }
-
- g_free (specs);
-
- pads = g_list_last (GST_ELEMENT_PADS (element));
-
- while (pads) {
- GstPad *pad = GST_PAD_CAST (pads->data);
-
- /* figure out if it's a direct pad or a ghostpad */
- if (GST_ELEMENT_CAST (GST_OBJECT_PARENT (pad)) == element) {
- xmlNodePtr padtag = xmlNewChild (parent, NULL, (xmlChar *) "pad", NULL);
-
- gst_object_save_thyself (GST_OBJECT_CAST (pad), padtag);
- }
- pads = g_list_previous (pads);
- }
-
- return parent;
-}
-
-static void
-gst_element_restore_thyself (GstObject * object, xmlNodePtr self)
-{
- xmlNodePtr children;
- GstElement *element;
- gchar *name = NULL;
- gchar *value = NULL;
-
- element = GST_ELEMENT_CAST (object);
- g_return_if_fail (element != NULL);
-
- /* parameters */
- children = self->xmlChildrenNode;
- while (children) {
- if (!strcmp ((char *) children->name, "param")) {
- xmlNodePtr child = children->xmlChildrenNode;
-
- while (child) {
- if (!strcmp ((char *) child->name, "name")) {
- name = (gchar *) xmlNodeGetContent (child);
- } else if (!strcmp ((char *) child->name, "value")) {
- value = (gchar *) xmlNodeGetContent (child);
- }
- child = child->next;
- }
- /* FIXME: can this just be g_object_set ? */
- gst_util_set_object_arg (G_OBJECT (element), name, value);
- /* g_object_set (G_OBJECT (element), name, value, NULL); */
- g_free (name);
- g_free (value);
- }
- children = children->next;
- }
-
- /* pads */
- children = self->xmlChildrenNode;
- while (children) {
- if (!strcmp ((char *) children->name, "pad")) {
- gst_pad_load_and_link (children, GST_OBJECT_CAST (element));
- }
- children = children->next;
- }
-
- if (GST_OBJECT_CLASS (parent_class)->restore_thyself)
- (GST_OBJECT_CLASS (parent_class)->restore_thyself) (object, self);
-}
-#endif /* GST_DISABLE_LOADSAVE */
-
static void
gst_element_set_bus_func (GstElement * element, GstBus * bus)
{