gramps
6af2026906
The stamped build settled what slices 3-4 could not: chat cache works (resolve ~0.0ms) but render stayed 26-27ms -> 124-135/300. The cost was the compositor re-rasterizing EVERY layer every tick: this Live scene re-samples chat (159k) + web widget (271k) + image (95k) + cam (156k) ~ 680k px @ ~38ns — for layers whose pixels do not change between chat/web/cam updates. OBS shape: cache the surface, paste per tick. BlitCachedLayer rasterizes a non-opaque layer ONCE into an element-space, transparent-based frame keyed by (source-array identity, src W/H, ceil'd dst rect, round, mirror), then pastes: integer position, row alpha-blend, opacity applied at paste. Producers hand out fresh immutable arrays -> array-identity keys cannot serve stale content; dict bounded (48, clears whole). Drag/opacity live in paste params, not keys, so editing stops triggering resamples too. Opaque backdrop keeps the memcpy path; the webcam keeps the direct path via its IsOpaque flag (revisit if take 9 is borderline). ONE integration test: PasteCache_RepeatRender_IsByteIdentical_And_ContentChange- Propagates (byte-exact raster-vs-paste incl. round-clip margins, new-array propagation); existing pixel suite guards sampler semantics. 85/85 across compositor/pump/chat/capture/session classes, clean build 0 warnings. Also: BuildStampTests.cs was written last commit but never staged — its own scope-check slip, added here (the run had used the on-disk file; tracked now). Docs same commit: ai.md slice 5 + stale 'general path only 130k' claim corrected, TASKS.md take-9 gate, MyMistakes recipe (prove the stage; a fix that doesn't move the stat wasn't the bottleneck), HANDOFF. take 9 expectation: 300/300, render <= ~8ms -> saga closes, Unit B starts.
ytLlive
A creator-proof live-streaming and recording app for YouTube — native Windows (C# / WPF / .NET 8).
Screenshot
Design Principle
This software is so intuitive that even the most right-brained person can easily intuit and use it.
Every feature is measured against this. One-click go-live, sane YouTube defaults, visual scene building, and no dead ends — every action has a visible outcome.
Why ytLlive
OBS treats YouTube as an afterthought; SLOBS is Twitch-first with YouTube bolted on. ytLlive is designed and dedicated to YouTube livestreaming and recording, and to YouTube's specific quirks.
Account Assumption
ytLlive assumes you already have a YouTube creator account — connecting uses "Sign in with Google" to link that existing account. ytLlive does not create accounts. If you don't have a YouTube channel yet, set one up on YouTube first, then connect it here.
Audio Assumption
ytLlive uses your default microphone and desktop/game output — it never hunts for a device or contends for one. It assumes your audio is already configured and working (default input and output set, not hijacked by another app). Audio issues are a Windows/device matter outside ytLlive's scope: we don't debug, detect, or try to fix them. If it doesn't sound right, fix the system's audio settings first — it's on the OS, not on us.
Run
dotnet build # Windows only — WPF
dotnet run
Version Roadmap
v1 is the finished product (creator ruling, 2026-09-01 — there are no v1.x releases).
Everything still queueing lands in v1; anything not on the feature list is on the closed
"Out of product — permanently" list in TASKS.md — read that page before asking for a feature.
What v1 ships: the five-scene director's control surface, webcam + screen capture, media + web + text sources, chat on-stream, the social bar, mic/desktop audio with auto-duck and TRAX, local recording, variable quality tiers with auto step-down, one-click go-live + scheduling, stream resilience (auto-reconnect inside YouTube's grace, one-click back on air), built-in monetization awareness (reward capture, session reports, YPP journey tracker), Alerts — all free and ungated; the subscription only removes the branding flash.
Structure
| Path | Role |
|---|---|
Models/ |
Scene, Source, WebcamSceneConfig, SceneElement, SceneCatalog, QualityOption, StreamConfig/Health, chat, Socials, BroadcastMetadata, Music, MicStatus |
ViewModels/ |
MainViewModel (partial classes per area) + dialogs: GoLive, CameraPicker, MicPicker, HotkeyConfig, Socials, LiveBroadcastForm |
Services/ |
YouTube (OAuth, streams/broadcasts, chat polling), LayoutStore (SQLite), capture (camera/screen-capture/media-file via FFmpeg), SceneCompositor + FramePump, FFmpeg encoder + RTMP, audio pipeline (WASAPI loopback + mic, mixer, filters, ducker, limiter, TRAX), SocialValidator, notifications, hotkeys, SceneGraph, ChatOverlayLayer |
Helpers/ |
ViewModelBase, RelayCommand, ImageCache, AppLog, TokenStore (DPAPI), OAuthCredentials, converters |
Themes/ |
Controls.xaml — the dark-theme control styles, merged once in App.xaml |
MainWindow.xaml |
Dark-theme control surface: thumbnails + central preview, two-state left panel (layers/properties ↔ live chat), top bar, footer |
Distribution.md |
GA-time plan: signing, installer, EULA, hardening — executed as TASK 36 |
Docs (memory map)
schema.md defines the conventions; ai.md is the AI/session guide;
TASKS.md is the task queue. Each code directory carries an index.md.