gramps
ea347f211c
The one-shot dump + alpha log was bound to the FIRST capture ever = the initial
about:blank placeholder (alpha=0, rgb=0, 5/5 sessions) — a blind instrument. The
pre-parse transparency injection (1a39b09) is intact but was NEVER verified
(MyMistakes '? VERIFY'), and the 2026-09-10 take still shows a black, opaque
block. Stop guessing: NavigationCompleted for a non-about:blank document now
arms WidgetDumpRemaining=5; the next 5 post-paint captures dump
%TEMP%\ytLive-web-<id>-w1..5.png + shared AlphaStats(min/max/mean/zero%) +
FindContentBounds to startup.log.
The stats line alone names the branch: zero%≈opaque ⇒ the injection did not hold
for this widget's CSS (fix: !important stylesheet / chroma-key); large zero% +
tight bounds ⇒ capture IS transparent and the black lives in the compositor
blend. No new test: WebView2 runtime is not instantiable in the suite and the
re-point is log-only; 8/8 WebView2 tests still pass.
63 lines
3.7 KiB
Markdown
63 lines
3.7 KiB
Markdown
# HANDOFF — 2026-09-10 (late afternoon)
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## Branch / Commit State
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`main` HEAD currently = `f3d578c` (slice 12 audio telemetry). **Slice 13 (web transparency
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diagnostic re-point) is uncommitted** in the working tree. Ahead of origin by 18, NOT pushing
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(user ruling: no push until web-overlay transparency AND audio-silence are addressed).
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## ACTIVE THREAD (the user's directive: ONE problem at a time)
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**Web-uri transparency: still a black, opaque block** (take `ty-20260910-1202-0000-2.mp4` —
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user: "the web-uri resource transparency is still a black, opaque block. The desired animation
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runs just fine."). The animation-speed work is done; transparency is now THE web problem.
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Institutional memory (MyMistakes, spin-guard entry): WebView2 `CapturePreviewAsync` honors the
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page's CSS — the pre-parse injection (`1a39b09`, `AddScriptToExecuteOnDocumentCreatedAsync`)
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is the recorded fix and is INTACT in `WebView2Manager.cs` (line ~157). The "? VERIFY" was never
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closed because the diagnostic dump + alpha log bound to the FIRST capture ever = the about:blank
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placeholder (blind; 5/5 sessions alpha=0 rgb=0).
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**Slice 13 change (uncommitted):** re-point the instrument at reality —
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- `WebSourceSession.WidgetDumpRemaining`; `NavigationCompleted` arms `= 5` when the newly-loaded
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document is NOT about:blank.
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- Next 5 captures dump `%TEMP%\ytLive-web-<id>-w1..5.png` + `AlphaStats(...)` + FindContentBounds
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to startup.log.
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- `AlphaStats` extracted from the old inline first-capture block.
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Build 0 warnings; 8/8 WebView2 tests pass (runtime not instantiable — re-point is log-only, no
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new test). Suite otherwise 290/291 (pre-existing compositor pixel).
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## THE DECISION LADDER (no more cargo-culting)
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1. User launches the app with the widget sources active, waits ~10s, closes. (NO recording needed.)
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2. Read the `widget capture [1..5/5]` lines in startup.log:
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- **zero% ≈ 0 (opaque):** pre-parse injection did NOT hold for this widget's own CSS →
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FIX = stronger transparent-background enforcement (document-level `!important` stylesheet
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injected pre-parse + re-asserted, per the OBS user.css precedent) OR chroma-key the known
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backdrop color in `CaptureFrame`. Pick after seeing the `-w1..5.png` PNGs.
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- **zero% large + tight contentBounds:** the capture HAS transparent margins → the recording's
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black block lives downstream → audit the compositor web-layer blend/underlay (PMA-vs-straight
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alpha, black pre-fill). Do NOT touch the capture path.
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3. Implement the branch's fix with ONE integration test (chroma-key math or compositor blend has
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testable seams), docs same-commit, then ONE verification recording.
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## Other threads (paused)
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- **Audio silence** — `f3d578c` added per-5s `Audio live:` telemetry; next take with desktop
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audio ACTIVE + those lines names the stage. Push gate #2.
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- **Web capture speed** — 30Hz NOT achieved (35-117ms/capture → effective ~10-14Hz). The
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animation "runs fine" so the user is satisfied; revisit only if they want more.
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- **Webcam missing** in the 10:38/12:02 takes — "MJPG negotiation refused (being used by
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another process)" at startup. Queued behind transparency+audio.
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## Landmines
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- testhost shares startup.log with app — filter by time.
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- `taskkill //F //IM testhost.exe //IM ytLive.exe` before rebuild.
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- Build/tests: `/mnt/c/Program Files/dotnet/dotnet.exe build …` / vstest.
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- Probing: `/mnt/c/Program Files/Krita (x64)/bin/ffmpeg.exe` / `ffprobe.exe`.
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- Do NOT delete the crop/compositor paths while debugging source alpha (MyMistakes rule 3 —
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take-25 vandalism).
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- The user is frustrated with take-loops; the widget dump needs NO recording — an app launch
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suffices. Ask for launch + 10s + close, not a take. |