Re: [Openexr-devel] OpenEXR version compatibility

[Piotr Stanczyk]

yeap

I seem to be drowning in version issues with linux

P


On 21 Mar 2005, at 19:40, Drew Hess wrote:

> Did you compile the 1.0.5 with the gcc 2.96 that comes with RedHat
> 7.2?  (Geeze, that's a lot of version numbers in one sentence....)
>
>
>
> Piotr Stanczyk <address@hidden> writes:
>
> > this is mainly on rh72, though similar issues on fedora core 1. I've
> > attached the offending file.
> >
> > If we pass this through a tool that simply reads the data and writes
> > it out again with a different compression scheme, linked against
> > 1.0.5, the file is then consistent across all versions.
> >
> > Can you replicate the errors at your end?
> >
> > Thanks,
> >
> > Piotr
> >
> >
> >
> >
> > On 21 Mar 2005, at 18:49, Drew Hess wrote:
> >
> > > We haven't seen that, nor has anybody else reported it.  Files 
> > > written
> > > by previous versions of OpenEXR should always be readable by later
> > > versions (except for tiled files written by the development versions
> > > 1.1.0 and 1.1.1, those are unsupported because we changed the tiled
> > > format before officially releasing it).
> > >
> > > On what platform is this?  Can you send me one of the example images
> > > that demonstrates the problem?
> > >
> > > thanks
> > > d
> > >
> > >
> > >
> > > Piotr Stanczyk <address@hidden> writes:
> > >
> > > > Hi All,
> > > >
> > > > We have recently been having more and more problems with reading
> > > > OpenExr files that have been generated with application linked 
> > > > against
> > > > 1.0.5 and processing these files with applications linked against
> > > > 1.2.1.
> > > > In particular, this is characterised by apparent pixel noise in the
> > > > bottom of the image and, so far, only occurs when used in 
> > > > conjunction
> > > > with the piz compression scheme.  Sometimes there are no errors
> > > > reported when reading these file, at other times messages relating 
> > > > to
> > > > the Huffman encoding crop up.
> > > > Am I correct in thinking that I should be safe in doing this? there 
> > > > is
> > > > a file version attribute but it has not changed  across these
> > > > versions.
> > > >
> > > > Anyone had similar experiences of this?
> > > >
> > > > Many thanks
> > > >
> > > > Piotr
> > > >
> > > > BTW  I managed to grab some some example images in the middle of our
> > > > pipeline that demonstrate this quite well.
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Openexr-devel mailing list
> > > > address@hidden
> > > > http://lists.nongnu.org/mailman/listinfo/openexr-devel