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Webcam resource validation + first-frame proof + CameraConflictProbe: MediaCaptureFrameSource validates post-init (VideoDeviceId match, stream properties, reader StartAsync status), subscribes Failed/CameraStreamStateChanged → SourceFailed; CameraManager.AcquireAsync requires first-frame proof (4s timeout) — silent empty box impossible; MainViewModel surfaces WebcamError chip + MessageBox with suspect-app names; fallback ladder VideoPreview → VideoRecord; 19041 SDK projection gaps documented; AGENTS.md + schema.md + HANDOFF.md memory-map rules added; 81 tests passing, 0 warnings

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Llama Chile Shop
2026-08-12 07:21:15 -07:00
parent 60259c08c2
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HANDOFF.md
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# HANDOFF — session state
> Current operational state, read right after `TASKS.md`. Trust this file as the
> truth of what is in flight — do not re-derive from git/fs unless it points at
> a problem. Conventions: [`schema.md`](schema.md). Rewrite this file at session
> end, compaction, or any interruption.
## Session state (last updated: 2026-08-12)
- **Finished:** Webcam resource validation + first-frame proof — merged to `main` and pushed. `MediaCaptureFrameSource` validates post-init (VideoDeviceId match, stream properties, reader StartAsync status), subscribes `Failed`/`CameraStreamStateChanged` → `SourceFailed`; `CameraManager.AcquireAsync` requires first-frame proof (4s timeout); `MainViewModel` surfaces `WebcamError` chip + MessageBox with suspect-app names (`CameraConflictProbe`). Tested locally — NVIDIA Broadcast identified as the camera hog, killed it, webcam works. 81 tests passing, 0 warnings.
- **In flight:** Nothing. Clean tree on `main`.
- **Landmine:** 19041 SDK projection gaps: `MediaCaptureSharingMode.Exclusive` + `MediaCapture.DeviceLost` not projected; `CameraStreamState` enum member names omitted (compare by `(int)` — 2=Failed). The Aug 11 social-bar work is **gone** (git gc-pruned, opencode.db reinitialized, gitea refuses unadvertised fetch) — rebuild from scratch per TASKS.md item 14.
- **Next step:** Branch B — social bar (global resource, validated lookups, top/bottom + LCR, freemium YT+1 / premium unlimited, +/- scene toggle). Spec in TASKS.md item 14.
- **Secret/DB/port facts live:** OAuth client id/secret in `Helpers/OAuthCredentials.cs`; OAuth session token in `Helpers/TokenStore.cs` (DPAPI → `%APPDATA%\ytLlive\ytLlive.auth`); layout DB `%APPDATA%\ytLlive\ytLlive.db` (schema v6); OAuth callback `http://localhost:8765/oauth2/callback`; crash log `%APPDATA%\ytLlive\startup.log`.