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This object can be attach to any GstBin and will emit a the “element-added” signal for every element inside the GstBin or any sub-bin and any element added in the future to the bin or its sub-bins. There is also a utility method to have it used to set the properties of elements based on a GKeyfile.
FsElementAddedNotifier *
fs_element_added_notifier_new (void);
Creates a new FsElementAddedNotifier object
void fs_element_added_notifier_add (FsElementAddedNotifier *notifier,GstBin *bin);
Add a GstBin to on which the “element-added” signal will be called on every element and sub-element present and added in the future.
gboolean fs_element_added_notifier_remove (FsElementAddedNotifier *notifier,GstBin *bin);
Stop watching the passed bin and its subbins.
gulong fs_element_added_notifier_set_properties_from_keyfile (FsElementAddedNotifier *notifier,GKeyFile *keyfile);
Using a GKeyFile where the groups are the element's type or name and the key=value are the property and its value, this function will set the properties on the elements added to this object after this function has been called. It will take ownership of the GKeyFile structure. It will first try the group as the element type, if that does not match, it will check its name.
The id of the signal connection, this can be used to disconnect
this property setter using g_signal_handler_disconnect().
gboolean fs_element_added_notifier_set_properties_from_file (FsElementAddedNotifier *notifier,const gchar *filename,GError **error);
Same as fs_element_added_notifier_set_properties_from_keyfile() but using
the name of the file to load instead of the GKeyFile directly.
gulong fs_element_added_notifier_set_default_properties (FsElementAddedNotifier *notifier,GstElement *element);
Same as first calling fs_utils_get_default_element_properties() and using
the result with
fs_element_added_notifier_set_properties_from_keyfile() .
This is binding friendly (since GKeyFile doesn't have a boxed type).
The id of the signal connection, this can be used to disconnect
this property setter using g_signal_handler_disconnect().
“element-added” signalvoid user_function (FsElementAddedNotifier *self, GstBin *bin, GstElement *element, gpointer user_data)
This signal is emitted when an element is added to a GstBin that was added
to this object or one of its sub-bins.
Be careful, there is no guarantee that this will be emitted on your
main thread, it will be emitted in the thread that added the element.
The bin may be NULL if this is the top-level bin.
self |
FsElementAddedNotifier that emitted the signal |
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bin |
The GstBin to which this object was added |
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element |
The GstElement that was added |
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user_data |
user data set when the signal handler was connected. |
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