[Caml-list] MPEG-Lib for OCaml?

[Caml-list] MPEG-Lib for OCaml?

[Oliver Bandel]

Hello,

I only have found very general papers on mpeg-video
processing, but no file-format-specification.

a) Are there any libs for OCaml, reading in video-data?

b) ( The off-topic-part of this mail ;-) )
   Are there any papers with a detailed description
   of the file format?

TIA,
   Oliver

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Re: [Caml-list] MPEG-Lib for OCaml?

[Chris Hecker]

>I only have found very general papers on mpeg-video
>processing, but no file-format-specification.
>a) Are there any libs for OCaml, reading in video-data?
>b) ( The off-topic-part of this mail ;-) )
>    Are there any papers with a detailed description
>    of the file format?

I have a really crappy hookup to the Berkeley MPEG library that you're 
welcome to use.  It doesn't support sound, or fast-forward, or 
anything.  But, it'll give you a bitmap of every frame, so if you just need 
that then it works okay.  The, uh, "interface" is below (Image.t is just a 
bigarray wrapper you're welcome to have as well).

Chris

(*
  * mpeg.ml - a really cheesy interface to the really crappy berkeley mpeg 
library
  * 2003/2/10 checker
  * @todo this code is not shippable, the mpeg library is totally flakey 
and unstable
  *
  *)


type t

external create : string -> t = "mpeg_create"
external get_size : t -> int * int = "mpeg_get_size"
external get_next_frame : t -> Image.t -> bool = "mpeg_get_next_frame"
external is_destroyed : t -> bool = "mpeg_is_destroyed"
external destroy : t -> unit = "mpeg_destroy"



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