Gets the metadata for api
on buffer.
When there is no such metadata, null
is returned. If multiple metadata with the given api
are attached to this
buffer only the first one is returned. To handle multiple metadata with a given API use gst_buffer_iterate_meta
or
foreach_meta instead and check the `meta->info.api` member for the API type.
this |
a Buffer |
api |
the Type of an API |
the metadata for |