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Library
Module
Module type
Parameter
Class
Class type
package zbar
Initialisation
Low level interface
val create : unit -> tCreate the video device structure.
val request_size : t -> int -> int -> unitRequest a preferred size for the video image from the device. Must be called before open_.
val request_interface : t -> int -> unitRequest a preferred driver interface version for debug/testing. Must be called before open_.
val request_iomode : t -> int -> unitRequest a preferred I/O mode for debug/testing. Must be called before open_.
val open_ : t -> string -> unitopen_ h dev opens the video device dev.
High level interface
val opendev : ?dev:string -> unit -> topendev ~dev () creates a video device reading its frames from ~dev (default /dev/video0) and opens it with the default settings. It is equivalent to call create, then open_.
Using the video device
val closedev : t -> unitval stream : t -> Image.t Lwt_stream.tstream d starts the video capture and returns the stream of images from the video device structure d.
val disable : t -> unitdisable d stops the video capture on device structure d.