getExternalSource
Returns an implementation of ExternalSource for the given mediaType.
The ExternalSource is an API to be used when a media item should be added to this MediaClient from a different source than the remote device (e.g. a local screenrecording / snapshot as performed in e.g. the Steering App). Please note that this API is experimental in it's current state and not stable (as of now its only planned to be used in the Steering App anyways).
Return
An instance of ExternalSource for the given mediaType
Parameters
mediaType
The MediaType the returned ExternalSource should be able to handle