Trait gstreamer::prelude::ElementClassExt

pub unsafe trait ElementClassExt {
    // Provided methods
    fn metadata<'a>(&self, key: &str) -> Option<&'a str> { ... }
    fn pad_template(&self, name: &str) -> Option<PadTemplate> { ... }
    fn pad_template_list(&self) -> List<PadTemplate> { ... }
}

Provided Methods

fn metadata<'a>(&self, key: &str) -> Option<&'a str>

Get metadata with key in self.

key

the key to get

Returns

the metadata for key.

fn pad_template(&self, name: &str) -> Option<PadTemplate>

Retrieves a padtemplate from self with the given name.

If you use this function in the GInstanceInitFunc of an object class that has subclasses, make sure to pass the g_class parameter of the GInstanceInitFunc here.

name

the name of the PadTemplate to get.

Returns

the PadTemplate with the given name, or None if none was found. No unreferencing is necessary.

fn pad_template_list(&self) -> List<PadTemplate>

Retrieves a list of the pad templates associated with self. The list must not be modified by the calling code.

If you use this function in the GInstanceInitFunc of an object class that has subclasses, make sure to pass the g_class parameter of the GInstanceInitFunc here.

Returns

the GList of pad templates.

Implementations on Foreign Types

impl<T: IsA<Element> + IsClass> ElementClassExt for Class<T>

Implementors