gramps 8f490102ee TASK 21 Increment B: FFmpeg rawvideo video decoder -> VideoFrame
Adds the codec-agnostic decoder half of the media source. Spawns ffmpeg
with -f rawvideo -pix_fmt bgra (reusing the already-shipped ffmpeg via
IFfmpegLocator) and drains the raw BGRA stdout pipe into VideoFrames.

- Services/RawVideoFrameReader.cs: pure rawvideo BGRA stream -> frames
  (partial reads kept across Feed; no ffmpeg needed to test)
- Services/IDecodeProcess.cs + FfmpegDecodeProcess.cs: binary-stdout
  subprocess seam, mirror of the encoder's IEncoderProcess
- Services/MediaVideoSource.cs: owns the decode, raises FrameReady/Completed
- MediaVideoSourceTests: 3 pure reader + 1 integration (fake decode
  process through the real source loop, frames in order)

Reference (external scan): ffmpeg rawvideo pipe decode is the canonical
codec-agnostic frame feeds pattern (ffmpeg docs -f rawvideo; how OBS/media
pipelines push frames to a compositor). Verified: 4/4 tests, build 0 warnings.
Native-FPS pacing + resolver/compositor wiring are the next slice.
2026-08-31 18:57:29 -07:00

ytLlive

LlamaCasty — livestream smarter

A creator-proof live-streaming and recording app for YouTube — native Windows (C# / WPF / .NET 8).

Screenshot

ytLlive — main window with scenes, sources, and live preview

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

Version Scope
v0.1 Scene/source management, YouTube RTMP ingest, YouTube OAuth2, live chat, stream health
v0.2 Recording to local file
v0.3 Stream scheduling
v0.4 Multi-destination restreaming
1.0 General availability

Structure

Path Role
Models/ Scene, Source, QualityOption, StreamConfig, StreamHealth, YouTube channel/chat, Socials (social bar)
ViewModels/ MainViewModel — scenes, stream controls, chat; GoLiveViewModel, ReuseImageViewModel, SocialsDialogViewModel
Services/ YouTubeAuthService (OAuth2), YouTubeStreamService (broadcast/health), YouTubeChatService (chat polling), LayoutStore (SQLite), SocialValidator (social link/fediverse validation + nodeinfo icon resolution)
Helpers/ ViewModelBase, RelayCommand, ImageCache, AppLog, FocusPreservingListBox, OAuthCredentials
Themes/ Controls.xaml — the dark-theme control styles, merged once in App.xaml
MainWindow.xaml Dark-theme main UI: scene/source panel, preview, chat, status bar
SocialsDialog.xaml Social Media Site Promotion dialog — 6-slot social bar editor with sign-in gate and validation

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.

S
Description
Creator-proof live-streaming and recording app for YouTube — native Windows (C# / WPF / .NET 8). One-click go-live, visual scene building.
Readme 39 MiB
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