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/sync-upstream coverage report — 2026-05-03

Generated by the /sync-upstream skill in port-only mode. Read-only planning artifact; no code is ported by this PR. Companion to the prior 2026-05-02 scan in 2026-05-02-sync-report.md.

Run metadata

  • Date of run: 2026-05-03
  • Skill version: .claude/skills/sync-upstream/SKILL.md
  • Topology: port-only (git merge-base master upstream/master returns empty — exit 1).
  • Upstream remote: https://github.com/Netflix/vmaf.git (branch master).
  • Upstream tip: 151a9822 2026-05-02 Merge pull request #1509 from Netflix/feature/routine-test-additions.
  • Fork tip: 29f75668 2026-05-03 feat(vulkan,simd): T-GPU-OPT-VK-2 — ssimulacra2 host XYB AVX2+NEON SIMD (~2-3x wall-clock) (#314).
  • Last-synced upstream SHA (from 2026-05-02 report): 151a9822.
  • Range scanned: 151a9822..upstream/master.
  • Method: git fetch upstream master then git log --oneline 151a9822..upstream/master to enumerate any new commits since the prior scan. The 2026-05-02 quarterly inventory of the previous 49 upstream commits remains the authoritative classification surface for any still-unported tail; this scan is a delta-only check against the upstream tip.

Headline counts

Category Count
Upstream commits in 151a9822..upstream/master 0
New PORTED on fork since 2026-05-02 0
New UNPORTED — total 0
  PORT (small fix worth picking) 0
  DEFER 0
  SKIP 0

No-op delta: upstream master has not advanced since the 2026-05-02 scan. The upstream tip is the same merge commit (151a9822) at the same author date (2026-05-02). No new triage rows are required.

What did change on the fork side

For situational awareness only — these are fork-internal commits since the prior scan and are NOT upstream ports:

  • 29f75668 — feat(vulkan,simd): T-GPU-OPT-VK-2 ssimulacra2 host XYB AVX2+NEON SIMD (#314)
  • 7dbc5571 — chore(coverage): gap analysis — 2026-05-02 baseline + recommendations (#313)
  • 943589cb — feat(cuda): T-GPU-OPT-1 fence batching at engine scope (#312)
  • be897e44 — feat(ai): vmaf_tiny v3 + v4 multi-seed Netflix LOSO + KoNViD 5-fold eval (#311)
  • af227b02 — docs(adr): dedup duplicate-NNNN ADRs (#310)

None of these are upstream ports; all are fork-local feature / housekeeping work. They do not change the unported upstream backlog.

Standing recommendation list (carried forward unchanged from 2026-05-02)

The top-5 next-port shortlist from the 2026-05-02 report still applies, since no upstream commits have landed in the intervening day and no fork PR cited any of these SHAs. Reproduced here for convenience; full rationale lives in 2026-05-02-sync-report.md.

  1. 4f5e366b — integer_motion: fix dict leak in motion_force_zero case.
  2. 7affcb7c — x86/adm: fix compilation for 32-bit clang.
  3. 49d46e23 — libvmaf/predict: port chroma_from_luma correction.
  4. 7c4beca3 — Fix models symbols names when vmaf is compiled as a subproject.
  5. 332dde62 — y4m_input: yuv444p12/yuv422p12/yuv420p12 support.

Out of scope for this PR

  • No commits are actually ported here — this is a planning artifact only.
  • No build / lint / test runs were executed.
  • No code paths outside docs/sync-upstream/ are touched.

Reproducer

git fetch upstream master --quiet
git log --oneline 151a9822..upstream/master   # expected: empty
git rev-parse upstream/master                 # expected: 151a98226a7630b7decd7b790e56d6b7a99d63ca

Each future port lands as its own /port-upstream-commit <sha> PR, per the skill's port-only-mode guidance.