module Decoder:sig..end
exception Invalid_header
exception Skipped_frame
exception Error
type t
val create : Ogg.Stream.packet -> Ogg.Stream.packet -> tval check : Ogg.Stream.packet -> boolval get_video_format : t -> Schroedinger.video_formatval get_picture_number : t -> intval decode_frame : t -> Ogg.Stream.t -> Schroedinger.frame