Re: [Caml-list] Video/Audio codecs in ocaml

[Damien Bobillot <damien.bobillot@m4x.org>]

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Jonathan Roewen wrote :

>> With OCaml you can't use features like SIMD instructions of CPUs, and
>> will do many bound checking, so it will be slower.
>> I'm a bit sceptical that ocaml may be as good as C for pure signal
>> processing.
>
> Oh okay. Ah well, I'm doing a pure OCaml OS anyways, so we'll just
> have to wait and see.

Ok, I wasn't aware of that. In this case, you effectively have to  
write it in ocaml.

Did you have a url to this OS projet ?

I don't know how much speed you'll lost compared to C code, but if  
you use native ocaml compilation it shouldn't be a big issue (even if  
it's twice as slow as C, it'll run on recent CPUs ;)).

> Can bounds checking be disabled for just one module ?

The -unsafe option is a compiler option, not a linker option, so I  
think it may has a different value for each .ml file.

>> Writing a mpeg2 decoder won't take less than a week !!!
>
> We'll see. It'd be more like rewriting something like libmpeg2 in
> ocaml I think. It'd be a damn good attempt anyways ;-)

So... good luck ;)

-- 
Damien Bobillot


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