void gtk_video_set_media_stream ( GtkVideo* self, GtkMediaStream* stream )
Sets the media stream to be played back.
self will take full control of managing the media stream. If you
want to manage a media stream yourself, consider using a
GtkPicture for display.
If you want to display a file, consider using
The media stream to play or
The argument can be
The data is owned by the caller of the method.