This is great! Can you let us know what index number the datatype is in? I'm finding it hard to tell.
thx Dan On Mon, May 21, 2012 at 7:30 PM, Richard Bobo <[email protected]> wrote: > Adrian, > > Brilliant - I'll be making it into a nice little pulldown menu utility > function! And, looking a bit deeper at your code, of course, so I can learn > some more Python... 8^) > > Thanks! > > Rich > > Rich Bobo > Senior VFX Compositor > > Mobile: (248) 840-2665 > Web: http://richbobo.com/ > > "Man has been endowed with reason, with the power to create, so that he can > add to what he's been given." > - Anton Chekhov > > > > On May 21, 2012, at 6:40 PM, Adrian Baltowski wrote: > > Hi > With just few lines of code and totally simplified > > ********************************** > compList = ['None', 'RLE', 'ZIP', 'ZIP 16 lines', 'PIZ', 'PXR24', 'B44', > 'B44A'] > > n = nuke.selectedNode() > file = nuke.filename(n, nuke.REPLACE) > fd = open(file, 'rb') > header = fd.read(1024) > index = header.find('compression') > comp =ord(header[(index+28):(index+29)]) > print compList[comp] > > *********************************** > > Each exr file MUST have compression info in the header and this info is > placed just after channels info. It's simple to get actual size of channels > list but I quickly set 1024 bytes of a headroom. > > Best > Adrian > > > > > > W dniu 2012-05-21 21:04:38 użytkownik Rich Bobo <[email protected]> napisał: > > > On May 21, 2012, at 3:00 PM, Nathan Rusch wrote: > > The OpenEXR utilities are pretty nice to have around, especially exrheader. > Sounds like it might be worth a look for you. > > exrheader /path/to/input/image.exr | grep compression > > > Yep. I'll have a look, when I get a bit of extra time to experiment... > > Thanks! > > Rich > > > > > -Nathan > > > From: Rich Bobo > Sent: Monday, May 21, 2012 11:53 AM > To: Nuke user discussion > Subject: Re: [Nuke-users] How to check zip compression type for EXR > images...? > > Thanks, Nathan. Looks like more trouble than it's worth. I tried a down and > dirty 'strings <path> | grep compress | more' and came up with two instances > of the word "compression", but no other info. So, I guess I'll just use the > "Does it take lots longer to cache?" testing method! ;^) > > Rich > > > On May 21, 2012, at 2:37 PM, Nathan Rusch wrote: > > No, it isn't. > > Depending on the context from which you need to check the compression > scheme, if Python proves too unwieldy, you could also resort to > parsing/pattern-matching the output of the exrheader executable. > > -Nathan > > > From: Rich Bobo > Sent: Monday, May 21, 2012 11:32 AM > To: Nuke user discussion > Subject: Re: [Nuke-users] How to check zip compression type for EXR > images...? > > I found this reference and it looks like the OpenEXR module would have what > I need, but I'm not sure if it's part of Nuke's Python installation or > not... > > http://excamera.com/articles/26/doc/openexr.html > > > Rich > > On May 21, 2012, at 2:24 PM, Rich Bobo wrote: > > Hi, > > Anyone know a quick way to check EXR images to see if they were saved as > 16-scanline zips or single-scanline zips? ViewMetaData reveals nothing > about the compression type. I'm sure there's a command line invocation that > will show more - I just can't find it... > > Thanks for any help, > > Rich > > > Rich Bobo > Senior VFX Compositor > Mobile: (248) 840-2665 > Web: http://richbobo.com/ > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > ________________________________ > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > ________________________________ > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users _______________________________________________ Nuke-users mailing list [email protected], http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
