Hi,

Ocaml-magic is only optional for now, so it's good that decoders such
as ogg and wav don't need it. The only problematic decoder is MP3
because it usually succeeds at decoding anything. To me even the MP3
problem is a minor issue but it's fixed anyway: if ocaml-magic is
available then a mime check happens prior to mp3 decoding.

I don't think we should waste our time on more mime checks (cleanup
the existing code instead!). Even if there is a mime check, it's only
superficial so it's still good to try the actual decoder to check that
data is well-formed. Another problem of mime checks is that you have
to figure out all the possible mime strings that will come out of
valid files.

Cheers,

David

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