Address jrusso1020's nit on PR #365 (non-blocking review): both READMEs now
explain where the tolerance values come from.
- hdr-regression/README.md: add a budget-breakdown table that derives the 30
frames from the deltas in PRs #369 (window C fix → 5) and #375 (window F
fix → 0). The table doubles as a contract: if a future change forces the
budget back up, exactly one bucket has regressed and the table tells you
which one to investigate first.
- hdr-hlg-regression/README.md: add a 'Tolerance' section explaining why 0
is the right floor (HLG is a pure pass-through path, HEVC over rgb48le is
byte-deterministic on the same fixture, so any drift is a real regression).
The regeneration command for generate-hdr-photo-pq.py was already documented
at README lines 67-71, so no changes needed there.
Add @chenglou/pretext dependency and fitTextFontSize() utility that uses
canvas measureText to compute the largest font size that fits text within
a given width. Replaces character-count heuristics with actual font-aware
measurement.
- New fitTextFontSize() in @hyperframes/core/text, exposed on window.__hyperframes
- Generalized for all text elements (captions, titles, etc.), not just captions
- Unit tests (mocked pretext) + browser integration test (real Chromium canvas)
- Updated captions skill docs with usage, exit guarantee, and self-lint patterns
Co-authored-by: James <james.russo@heygen.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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