The creator's ruling (2026-09-27) is Store MSIX + Store IAP, so Microsoft delivers
the updates and the in-app updater is gone rather than parked. This is a
COMPLIANCE action, not cleanup: the Velopack bootstrap downloaded and executed a
payload, which Store policy 10.2.2 does not permit.
Three edit sites, as planned: the PackageReference in ytLive.csproj, 'using
Velopack;' in App.xaml.cs, and the bootstrap block. The self-hosted DigitalOcean
update-URL droplet dies with it.
Guard: ytLive.Tests/StorePackagingTests.cs - the ONE test asserts the app project
references no updater package (Velopack/Squirrel/NetSparkle/AutoUpdater/WinSparkle)
and that no app source file uses the updater API. The check matches CODE (a using
directive, a type usage), not a bare word, so a file's prose may still name what it
deliberately does not do.
Smoke-tested after the removal: MainWindow loaded, 0 exceptions in startup.log.
Full suite 437/437, 0 warnings.
- Model: Google's official MediaPipe Selfie Segmenter (landscape, Apache-2.0 per model card),
converted to ONNX by tools/selfie-seg/convert_tflite_to_onnx.py (custom op
Convolution2DTransposeBias -> ConvTranspose) and verified against MediaPipe's own runtime
(verify_against_mediapipe.py: max |diff| 5e-5, 100% binary agreement). Embedded resource, 430 KB.
- Services/BackgroundEffects: IPersonSegmenter seam, OnnxPersonSegmenter (onnxruntime 1.31.0 CPU,
never throws), BackgroundEffectProcessor (None passthrough, Remove = alpha mask). Not wired yet.
- Tests: Remove integration test (fake segmenter) + bundled-model contract test vs MediaPipe
reference mask. Full suite 407/408 — the one failure is the documented interactive-desktop flake
RealMouseDrag_OnTheLayerList_PersistsTheReorder (passed in the run before; code path untouched).
- Docs: ai.md reversal + section + licensing guard, THIRD-PARTY-NOTICES 11-12, TASK 51, indexes,
MyMistakes recipe, HANDOFF.
References: obs-backgroundremoval (approach only — ONNX Runtime on CPU, 2 threads; GPL-3.0, no code
used) https://github.com/royshil/obs-backgroundremoval ; MediaPipe image segmenter
https://ai.google.dev/edge/mediapipe/solutions/vision/image_segmenter
Store policy 10.2.2 forbids dynamic code inclusion, and this was the only
third-party binary the app ever downloaded and ran. It had already failed in
production: the pin aged out of BtbN's 14-day retention and the download 404'd
on the creator's first real recording attempt (2026-09-01). Bundling kills
that failure class permanently and deletes the startup network dependency.
- scripts/fetch-ffmpeg.sh populates a gitignored ./ffmpeg from a pinned
month-end BtbN LGPL-shared artifact, SHA-256 verified before extraction,
idempotent, FFMPEG_ZIP= override. 135 MB of DLLs in git would tax every
commit on this 9p tree; the URL + hash are the audit trail LGPL §6 wants.
- ytLive.csproj copies ffmpeg\** to output and publish (Always), and a
GuardBundledFfmpeg target fails the BUILD if the folder is missing, so a
fresh clone finds out before a take rather than during one.
- FfmpegLocator loses the downloader, the zip extraction and the
%APPDATA%\ytLlive\tools cache. Order is now bundle -> PATH, deliberately
inverted: a PATH ffmpeg may be a different major version or a GPL build,
and the bundle is what was pinned, license-vetted and tested. A missing
bundle throws loudly; the old "found something on disk" path could satisfy
a missing bundle with a stale copy, and silent drift is the worst failure
mode for a dependency certification inspects.
- ffplay.exe (18 MB) is not shipped; nothing calls it.
- THIRD-PARTY-NOTICES.txt: "downloads" -> "bundled" throughout, and the stale
build tag autobuild-2026-08-09-13-03 — the tag that 404'd — corrected to
autobuild-2026-08-31-13-27 with the exact artifact name and archive hash.
OpenH264 made precise: compiled INTO avcodec-63.dll, no separate binary.
Checked whether other third-party binaries needed bundling: no. e_sqlite3.dll
and WebView2Loader.dll already ship via NuGet into runtimes\win-x64\native\,
OpenH264 is inside avcodec-63.dll, the rest are managed. Two gaps remain that
bundling cannot fix, recorded in the map: the WebView2 Evergreen runtime is a
machine prerequisite (TASK 48 item 2), and Velopack's updater downloads and
executes, so its teardown is a compliance action.
Tests: 16 locator facts, suite 379/379, 0 warnings. The integration test runs
the bundled ffmpeg -version, which is the only assertion that proves the
sibling libav*.dll resolved — presence checks pass with the DLLs missing and a
shared build then fails to start. TheLocatorCarriesNoNetworkCapability keeps
10.2.2 from rotting back.
Analysis: TASKS/research-store-certification.md §4.
TASK 43's alert box grows a real video celebration. Per-alert IAlertClipDecoder
(ffmpeg bgra + f32le pipes, real-time paced, disposed at drain) plays the shipped
Assets/alert-default.mp4 (stamped into the Asset table at startup) unless the
creator picks their own file — path reference only, never stored in the DB; the
six AlertRenderer animations stay the fallback. ~0.3s fade rides the alpha
envelope on straight-source copies (EOF freeze-frames then fades out); audio
forwards to a new AudioMixer alert ring (8s, 48k stereo) drained at unity — no
duck, creator ruling — scaled by volume × fade. An auto-composed marquee ticker
('Funder — Super Chat · $10.00', 140px/s) scrolls top-of-frame via a
FramePump._alertTicker seam through Render/CompositeLayers, mixed into the cache
signature (dynamic overlay, never baked). New Stream Alerts section in LeftPanel.
Derivative-work references (how OBS/Streamlabs alert boxes do per-alert video):
- https://support.streamlabs.com/hc/en-us/articles/217741147-Setting-Up-Your-Streamlabs-Alerts (custom image/video per alert type + variations)
- https://obsproject.com/kb/stream-tutorial-2-alerts (alert overlay as an on-screen zone)
- https://streamlabs.com/content-hub/widgets/alert-box (per-event alert playback)
Good Dog: AlertLayerVideoTests drives a fake IAlertClipDecoder through the whole
lifecycle in one pass (custom path wins, decoder spawns/disposes, fade envelope
0→127→255, audio volume×fade, ticker scrolls, EOF fade-drain to idle). It caught
the clip branch of Advance not clearing _current before AdvanceToNext — the layer
stayed IsPlaying after drain (MyMistakes post-mortem).
Full vstest 319/319; clean build 0 warnings; scope check green.
Roll-forward of today-slices 6fd1d9c onto the slice-8 base, two-loop hunk dropped.
Release counter (per-build GUID read as noise; +1 per commit from git rev-list,
baseline 241 -> #13, generated by GenerateBuildStamp; GUID demotes to startup.log).
Tests pinned to Label/#N >= 13; wordmark display test asserts the Label.
Flash fix (take 14 finding): consumer holds must never outlive depth x source
period — 4 slots at high refresh lap ~27ms vs a <=50ms compositor read, so a
recycled slot flashed its new frame over the lagged old one. All shared rings 4->8
(OBS/overlay precedent for ring discipline).
Camera producer now rotates an 8-deep ring + Epoch instead of a fresh ~3.7MB
array per device frame (110-220MB/s LOH churn); WebView2 capture reuses a canvas
scratch + 8-deep output ring + a reused WriteableBitmap instead of two fresh
arrays + a fresh bitmap per 10Hz tick. Paste cache stays identity-keyed (Epoch).
Take 6 measured render 35-41ms — WORSE than take 5's 25.5 — and the run could
not be attributed to a binary: exe mtime != build contents (incremental builds
serve stale exes; a source edit without rebuild is a silent old binary). Three
takes of a perf saga had been judged against builds nobody could prove.
- ytLive.csproj GenerateBuildStamp target: fresh GUID per compile (writes
obj/BuildStamp.g.cs -> Helpers/BuildStamp.Id/BuiltLocal). Deliberately defeats
incremental lies: every 'dotnet build' recompiles the app project.
- Wordmark shows the id as a superscript (TopBar.xaml, x:Static, 9px grey
BaselineAlignment=Superscript); startup.log records 'Build <id> (compiled
<time>)' so every take is cross-readable with the visible UI.
- FramePump stats split the tick: 'avg render Xms (resolve Y), avg submit Z' —
the resolver is timed separately (wrapper resolver on per-tick paths; bake
keeps the raw one) so take 7 names the hot half of 'render' with data.
- Fixed a latent transition-clock bug found on the way: lastTick now restarts
every frame (the branch rework had restarted it only during transitions,
letting a transition begun after idle complete instantly on its first Tick).
ONE integration test family: BuildStampTests (unit: shape) +
BuildStampDisplayTests (RealApp, namescoped FindName on TopBar proves the
wordmark SHOWS the id). 47/47 per-class green, clean build 0 warnings. Docs
same commit. User's top-bar/session spec (re-sent twice) + settled Q&A
decisions folded into HANDOFF Unit B — next work unit after take 7 verdict.
Bundle exception (2026-08-27): this lands prior-session work plus today's
transparency fix as one commit per creator instruction.
WebView2Manager (new): off-screen WebView2 control parked at -5000/-5000 in
the window's visual tree, captures via CapturePreviewAsync every 100 ms into
a BGRA8 VideoFrame. Source Width/Height sync to the control via
PropertyChanged. JS transparent-background injection runs on every
NavigationStarting/NavigationCompleted so the page's own CSS does not paint
white over the capture.
Transparency fix: DefaultBackgroundColor = System.Drawing.Color.Transparent
set on the WPF control before EnsureCoreWebView2Async. The WPF SDK doc says
the value is forwarded to the controller on init; the IDL (ICoreWebView2-
Controller2) confirms alpha=0 makes the capture alpha-preserving. The
prior-session 'CoreWebView2.BackgroundColor' path was the wrong property
name and has been replaced.
LayoutStore: WebUri column added (idempotent ALTER TABLE) and round-tripped
on save/load (schema v11).
MainViewModel: WebView2Manager constructed on Loaded; loaded web sources
re-registered; Source.WebUri PropertyChanged forwards to manager.
MainWindow: off-screen host Canvas added to visual tree.
Tests: 3 scale-sync + WebView2_DefaultBackgroundColor_Is_Transparent +
LayoutStorePersistenceTests.WebSource_WebUri_Persists. 234/236 pass
(2 pre-existing failures unchanged).
Scale bug (DPI/physical-pixel mismatch) still open.
- Source.ShowDesktop bool persisted in DB (schema migration + LayoutStore)
- ClearBackdropCaptureAsync clears CaptureKey + VideoImageSource for static fallback
- Top bar: red/green/pulsing status light, avatar via BitmapImage, Log In button
- ShowStartStream now requires IsConnected
- RunMockChatPreviewAsync: simple async loop, ChatPreviewEnabled property on Source
- EnsureDefaultBackdrop called on every scene switch, seeds all 5 scenes
- SeedEndingBackdrop replaces existing, SeedChatBackdrop added
- SceneCatalog: Chat scene display name corrected (layer = 'YouTube Chat')
- Left panel spacing consistency, context menu reordered
- Border animation rendering via code-behind Storyboard approach
- 3 new backdrop assets (ending-backdrop.jpg, chat-backdrop.jpg, live-backdrop.jpg)
- Build 0 warnings, 178 tests passing
- Source.IsDraggable now includes ChatBox and WebSource (was Image-only)
- ChatBox default: 400×1080, top-right corner (1520, 0) on first add
- SeedStartingBackdrop: embeds starting-backdrop.jpg as Background source
in the Starting scene on first launch (pack:// resource)
- Assets/llamacasty-icon.png: new brand llama figure (no text)
- Assets/llamacasty-icon.ico: converted from PNG for executable
- Assets/llamacasty-logo.jpg: full logo with text
- ytLive.csproj: updated ApplicationIcon and Resource references
- All XAML windows: updated Icon references to new file
- Removed llama-logo.ico, llama-logo.png, llama-logo-icon.png
- Added tyllive-icon.png (340x318, app icon for all windows + About overlay)
- Added tyllive-icon.ico (multi-size 16/32/48/256, Windows app icon)
- Updated ytLlive-logo.png to new 524x220 branded version with tagline
- Updated ytLive.csproj + all 6 XAML window references
IFfmpegLocator seam that resolves ffmpeg.exe (PATH -> cache -> pinned download),
plus the licensing compliance that makes a paid GA product defensible.
NOTE FOR USERS: this change shows NO difference in the app's behavior except a
new top-bar "About" button (opens THIRD-PARTY-NOTICES.txt). It is scaffolding
for the encoder/streaming work.
- Services/Encoder/: IFfmpegLocator + FfmpegLocator. Pin is BtbN lgpl-shared
autobuild-2026-08-09-13-03 (NOT gyan.dev/GPL or static: LGPLv2.1 §6 static
relink material avoided by dynamic linking); extracts ffmpeg.exe + libav*.dll
via a staging dir so a crash never leaves a partial cache
- THIRD-PARTY-NOTICES.txt: LGPL/BSD/MIT notices + source offer, copied to the
build output, surfaced by the About button; v1 gate = bundle full license
texts (TASK 4 requirement 9)
- ai.md "Licensing - do not violate" guardrails (never GPL/nonfree/static/latest-
tag, never link FFmpeg in, never drop notices); TASKS.md + Services/index.md
updated
- Tests: FfmpegLocatorTests - hermetic decision-ladder integration test + shared-
build DLL extraction + edge cases; docs updated (78 tests passing, 0 warnings)
gramps