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docs(producer): carry chunk-seam + ProRes-intra-only rationale into mov-prores fixture

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Address @vanceingalls review on #848: the mp4-h264-sdr sibling fixture
explains the crossfade-straddles-frame-30 and continuous-rotation
chunk-seam design choices inline; mov-prores didn't. Add the parallel
comment so the next contributor reading either fixture finds the same
context. Notes specifically that ProRes is intra-only and therefore
exercises the QuickTime atom / -c copy contract rather than frame-level
state continuity.

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James
2026-05-14 23:51:44 +00:00
parent 5997845899
commit 967ebe69cd
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packages/producer/tests/distributed/mov-prores/src/index.html
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@@ -88,6 +88,11 @@
</div>
<script>
// Same chunk-seam stressors as the mp4 siblings: a crossfade straddling
// the frame-30 seam (0.9-1.1s = frames 27-33) and a continuous icon
// rotation across every chunk boundary. The point with ProRes is the
// QuickTime atom contract — frame-level continuity is structurally
// satisfied because ProRes is intra-only.
const tl = gsap.timeline({ paused: true });
window.__timelines = window.__timelines || {};
window.__timelines["main-comp"] = tl;