Attendance:

• Cary Phillips
• Christina Tempelaar-Lietz
• John Mertic
• Joseph Goldstone
• Kimball Thurston
• Larry Gritz
• Nick Porcino
• Peter Hillman
• Rod Bogart

Others:

• Li Ji

Discussion:

• Cary: Uniform Type Identifier issue from TAC meeting. Anything to do here? 
• Larry: all looks good, mostly just wanted to know if “open” should be in the type for exr, but that’s a no.
• OpenSSF Badge:
• Internationalization:
• Larry: all VFX facilities speak english. The benefits of internationalizing OpenEXR are minimal.
• Peter: English appears primarily in error messages.  Could switch that to an ID system.
• Cary: We can’t add much value beyond the user’s ability to run error messages through Google Translate.
• John: Can probably get by just explaining that. 
• Security policy
• John: here’s an example: 
• https://github.com/coreinfrastructure/best-practices-badge/blob/main/docs/assurance-case.m
• Nick:
• Still working on Zips core bugs
• We have extensive tests for OpenEXR, but not for OpenEXRCore, things not tested for.
• We have pride in the stability of the OpenEXR library, would like to get core to that point.
• Channel order: If you write to RGBA, it writes them out alphabetized but not the data.
• Took me 3 weeks to learn core, documentation is hand-wavy, the tests are not a good reference to read a file.
• Doesn't say  if I'm reading a tiled file and the image isn’t aligned with the window.
• Core can’t read all the test images
• I’ve only experienced crashes in experiments with the API
• Peter:
• Kimball wrote the original core parser.
• CheckFile doesn’t validate if it reads it correctly, only that it doesn’t crash 
• Larry:
• Last version of OIIO switched to core, blender folks encountered bug.
• OIIO only reads with core, doesn’t write
• Larry:
• PR Fix issue with decompressing fp32 dwa files #1591
• Peter:
• OpenEXR test suite should read and write every file in the openexr-images test suite.
• Iterate through all compression types, writes, reads, validates. Should be expanded to core.
• Will the files be byte-identical? Not sure.
• Li:
• Zip compression interprets the data as bytes, not half or float.
• Peter: same with deep. It doesn’t compress very well.
• Peter: DWA compression is better than run zip and hope for the best.
• Joseph:
• Can’t compress in camera
• Red has a patent on compressed raw.
• Peter: would have to demosaic first, then write.
• That’s why HD is so effective
• Peter: what is missing from openexr that puts people off?
• Can cameras output exr?
• Has to run faster than realtime.
• Joseph: DITs will send you flowers