On Sun, 1 Nov 2015 09:41:48 -0500
Ganesh Ajjanagadde <gajja...@mit.edu> wrote:

> I meant of course if they start using PNGSIG instead of copying over
> the magic constant. I still strongly encourage it.
> 
> >
> > The other issue (the 64 bit constant) was discussed to death, and it
> > turned out that the code is ok as it is.  
> 
> It is, but it is not ideal, since hex constants that represent such
> magic values are often better treated as unsigned.

It's just the png signature. I see no need to do this yet.

What might be more interesting: a function that probes the image format
from a buffer, without running all libavformat probers etc. on it.
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