TSC Meeting Notes 2021-06-17

Owned by Cary Phillips
Last updated: Jun 17, 2021
2 min read

Attendance:

Cary Phillips
Christina Tempelaar-Leitz
John Mertic
Joseph Goldstone
Kimball Thurston
Larry Gritz
Nick Porcino
Peter Hillman
Rod Bogart
Espindola Stela
Sergio Rojas

Agenda:

  • Feature freeze this weekend

  • 3.1 Beta release notes/announcement

  • Open Source Days agenda/speakers

  • Standard Optional Attributes

  • SonarCloud coverage report

Key Dates for Review:

  • Feature freeze: June 20

  • 3.1 release: July 4 

Discussion:

  • 3.1 feature freeze this weekend. 

    • Kimball, how's PR #870 going?

      • Done a good pass with flipping on the code coverage and scanners.

      • A failure in the uncompressor for PXR24

      • API is there but haven’t tested the deep stuff.

      • I don’t yet know if it’s sufficient for the GPU.

    • We need docs:

      • Press release

      • Release notes

      • Documentation

      • Should add a section to the C++ API document

      • An introduction to how to restructure code to use it. Distilled wisdom.

      • Kimball, can you start a Google doc we can use to draft this verbiage? Yes.

    • Larry: Luke from Animal is working on texture benchmarks, a torture test, performance is abysmal. Neither of us have hooked up the new stuff.  Hopefully this will be a solution.

    • Would it be better to just make the changes to OIIO? 

      • Larry: That would save me from doing the same thing.

      • Initial thing should be fairly straightforward.

    • Peter: we already have two ways of reading a file, the simplified RGBA version and the full version. This is a third.

    • Does the new API offer anything for writing? Nothing, just if you want C. It’s faster, or can be faster.

    • XDR stuff is quite a bit different.

  • Imath release, with optimized half. We should just proceed.

  •  

    • Cmake option to compile in the tables, since the tables can be too large.

    • Have made the code safe.

    • If someone hasn’t updated Imath it will still work.

  • Open Source Days

  •  

    • Spectral data? Kimbal: the Manuka team said, "Ah, sweet, can we add this and that!” But would require a file change.

  • Joseph: Standard Optional Attributes:

  •  

    • I’d been trying to get the attributes that are defined in the ACES Container File into the standard list.

    • Also virtual production ones.

    • Then pulled the whole thing. There it sat.

    • Over the past week, we flipped from a state where some of us were pushing to get changes made, to a pull.

    • John Levin @ ILM: “this is insane, stuff is coming in with inconsistent names.”

    • John Knoll inquired about standards with Dave Stumpf @ASC 

    • Came up with strategy: bypass SMPTE entirely, refine it with input from various studios. 

    • Not about code review, it’s about semantics.

    • Can use the PR process to host the discussion. One PR for each attribute/chunk.

    • Nick: Use a feature branch

    • Talk to Mike Min at Netflix, has a working group focusing on Camera metadata. He wants metadata in OTIO. 

    • "If we use a term, it has the same semantics."

    • Nick: There should be a schema. So the data can be carried and not lost.