Per-Participant NDI ISO Controller for Microsoft Teams. Receives Teams NDI streams, normalizes framerate/resolution, and re-emits clean ISO outputs for live production switchers (vMix, OBS, Ross). Wild Dragon LLC.
Zac Gaetano
fbcc56289e
ThemeManager grows a test seam — its singleton ctor now delegates to
three internal seams (isSystemDark / loadPreference / savePreference)
that the production singleton fills with the real registry +
UIPreferences calls. Tests construct via the internal ctor with
stubs so they never touch HKCU or %LOCALAPPDATA% (which would
otherwise flake on CI or pollute the dev's UI state). Apply() and
the SystemEvents subscription are intentionally NOT exercised
here — both require Application.Current and a real dispatcher.
CommandPaletteViewModel.Matches changes from `private static` to
`internal static` — the predicate is the unit worth pinning, and
building a full CommandPaletteViewModel would require a fake
IIsoController + Dispatcher for one test.
New tests:
* src/tests/TeamsISO.App.Tests/Services/ThemeManagerTests.cs (11 cases):
- Set Dark → Light round-trips Preference + ResolveTheme and
persists via the savePreference seam.
- ResolveTheme follows the system probe when Preference is
System (true → Dark, false → Light).
- Toggle from System pins to the opposite of the currently-
resolved theme (not back to System) — explicit click should
have visible effect.
- Toggle from Dark flips Light; Toggle from Light flips Dark.
- Set rejects invalid preferences (case-sensitive: lowercase
"dark", "LIGHT", "", "invalid" all throw ArgumentException
with ParamName=preference).
- Constructor defaults to System when loadPreference returns
null (fresh install / missing prefs file) or an invalid value
(future schema collision).
- Constructor swallows a load exception so the app doesn't lose
theming when ui-prefs.json faults on read.
* src/tests/TeamsISO.App.Tests/ViewModels/CommandPaletteMatchesTests.cs
(16 cases): Theory pinning case-insensitive label / category /
keyword Contains, plus a full-vocabulary spread test counting
hits for "theme" (3), "stop" (1), "ndi" (2), "App" (5 — four
App-category cmds + the Apply transcoder topology substring
match, called out in the assertion because a future move to a
stricter algo has to re-decide that affordance deliberately),
and "xyzzy" (0).
Tests: 56 → 83 in App.Tests; Engine.Tests unchanged at 103.
Total green: 186. Build clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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| .forgejo/workflows | ||
| docs | ||
| installer | ||
| src | ||
| .editorconfig | ||
| .gitignore | ||
| build-and-test.ps1 | ||
| CHANGELOG.md | ||
| commit-and-push.ps1 | ||
| coverlet.runsettings | ||
| DESIGN.md | ||
| Directory.Build.props | ||
| NEXT_STEPS.md | ||
| PRODUCT.md | ||
| README.md | ||
| TeamsISO.Linux.slnf | ||
| TeamsISO.sln | ||
| TeamsISO.Windows.slnf | ||
TeamsISO
Per-Participant NDI ISO Controller for Microsoft Teams.
TeamsISO sits between Microsoft Teams' raw NDI broadcast output and a live-production environment. It receives each participant's NDI stream, normalizes framerate / resolution / aspect / audio per a configured target, and re-emits clean, individually-addressable NDI sources for ingestion into a switcher (vMix, OBS, Ross, hardware capture).
What it does
- Discovers participants as Teams broadcasts each one over NDI, surfacing the operator-friendly display name (handles current "MS Teams - Name" format and the legacy "(Teams) Name" format).
- Normalizes feeds to a consistent framerate, resolution, aspect mode, and audio routing — so the downstream switcher gets predictable inputs regardless of what each participant's webcam is doing.
- Routes per-participant as separate NDI sources with a configurable
output-name template (
TEAMSISO_{name},{guid},{machine},{timestamp}tokens). - Records each ISO to disk simultaneously — raw BGRA + sidecar manifest.json
- ffmpeg convert.cmd — so post-production gets a clean per-guest archive.
- Embeds Teams orchestration: launch and stop Teams from the rail, hide Teams' UI windows during a show, drive in-call controls (mute, camera, share, leave, raise hand) via UIAutomation.
- Operator presets save the current per-participant ISO assignment and custom output names, applicable on next launch automatically.
- Live preview thumbnails per participant in the participants table, plus pop-out floating preview windows (right-click → Open preview…) for multi-monitor monitoring.
- External control surface — REST + WebSocket on
127.0.0.1:9755and OSC on UDP127.0.0.1:9000for Bitfocus Companion / Stream Deck / TouchOSC integration. Self-contained HTML control panel at/uifor phone-as-controller. - Crash diagnostics wired to a rolling daily Serilog file sink under
%LOCALAPPDATA%\TeamsISO\Logs\. - Update check against
forge.wilddragon.net's release API — manual or silent on launch (throttled to 24h). - Diagnostic bundle export zips logs + config + presets for bug reports.
Status
Pre-1.0. The May 2026 batch is feature-complete; v1.0 cut is gated on
code-signing the MSI and a smoke pass against a real Teams meeting.
See CHANGELOG.md for the [Unreleased] entry.
The May 2026 ground-up redesign — the v2 "Studio Terminal" shell — has
landed on the WPF host (src/TeamsISO.App/). A WinUI 3 replatform was
explored in early May 2026 and abandoned (activation blockers + redundant
work given the redesign is purely XAML / view-layer); the brief lives at
docs/shapes/2026-05-13-teamsiso-v2-studio-terminal.md, and the
abandoned migration plan + bootstrap probe are archived under
docs/archive/.
Build
Requires .NET 8 SDK on Windows. WPF is the only host:
src/TeamsISO.App— WPF,net8.0-windows, the shipping build
Build from the solution filter:
dotnet restore TeamsISO.Windows.slnf
dotnet build TeamsISO.Windows.slnf -c Release
dotnet test TeamsISO.Windows.slnf --filter "Category!=ndi&requires!=ndi"
The shipped helper scripts in the repo root automate this:
pwsh -File .\build-and-test.ps1
pwsh -File .\commit-and-push.ps1
Documentation
- Control surface API — REST + WebSocket + OSC reference with curl recipes and a Companion config example.
- Releasing — tag-push workflow, MSI signing path.
- Architecture spec — design overview.
- Embedded Teams orchestration spec — Phase E roadmap.
- Redesign brief + design system — token-level spec for the v2 "Studio Terminal" redesign.
- v2 shape brief — approved aesthetic + IA for the May 2026 WPF rebuild.
Keyboard shortcuts
| Key | Action |
|---|---|
F1 |
Open help / cheat sheet |
Ctrl + K |
Open the command palette (also Ctrl + P) |
Ctrl + T |
Toggle theme (dark ↔ light) |
Ctrl + M |
Drop a timestamped marker into every active recording |
Ctrl + Shift + S |
Stop every running ISO (emergency) |
Ctrl + R |
Refresh NDI discovery (rebuild finder) |
1–9 / NumPad 1–9 |
Toggle the Nth visible participant's ISO |
File locations
| Path | Contents |
|---|---|
%APPDATA%\TeamsISO\config.json |
Engine settings (framerate, NDI groups, etc.) |
%LOCALAPPDATA%\TeamsISO\presets.json |
Saved operator presets + auto-apply preference |
%LOCALAPPDATA%\TeamsISO\Logs\ |
Rolling daily diagnostic logs |
%LOCALAPPDATA%\TeamsISO\Notes\ |
Per-day show-notes markdown files |
%USERPROFILE%\Videos\TeamsISO\<date>\ |
Default recording output |
%APPDATA%\NDI\ndi-config.v1.json |
NDI Access Manager group routing |
License
Proprietary, © Wild Dragon LLC 2026.