Sets the `GtkMediaFile to play the given file.
This is a utility function that converts the given filename to a gio.file.File and calls gtk.media_file.MediaFile.setFile.
name of file to play
Sets the `GtkMediaFile to play the given file.
This is a utility function that converts the given filename to a gio.file.File and calls gtk.media_file.MediaFile.setFile.