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
d91f95379b
Adds end-to-end-ish tests that boot the server on an OS-assigned free
port and exercise the route dispatch via HttpClient. Catches
regressions in the route table itself (which is the part of the
control surface that benefits least from unit tests — its bug
surface is the URL → handler mapping, not the handler bodies).
* src/tests/TeamsISO.App.Tests/Fakes/StubIsoController.cs — minimal
IIsoController stub that lets the App layer instantiate without
spinning up the engine + NDI runtime. EnableCalls / DisableCalls /
RefreshDiscoveryCalled flags make assertions on side effects easy.
* src/tests/TeamsISO.App.Tests/Services/ControlSurfaceServerTests.cs
(7 cases):
- GET / → 200 with the server-info JSON (product, endpoints).
- GET /unknown-path → 200 with body {error:"not found"}. Pinning
this odd-but-intentional behavior: the catch-all switch arm
returns NotFound() (an object) so response is non-null and the
pipeline writes 200 + that body instead of branching to the
404 path. The body is the disambiguator, matching the rest of
the surface's "200 + {ok:false,error:…}" convention.
- GET /participants → 200 with participants:[] when no view-model.
- POST /presets/refresh-discovery → 200 + StubIsoController.
RefreshDiscoveryCalled flips true (route → controller round-trip).
- POST /presets/{missing}/apply → 200 + ok:false +
error:"preset not found" (missing-preset path).
- GET /ui → 200 with text/html.
- OPTIONS /participants → 204 + Access-Control-Allow-Origin:*
(CORS preflight for browser-based controllers).
TeamsISO.App.Tests.csproj gains UseWPF=true so the test assembly
can transitively compile against the WPF types that
ControlSurfaceServer's signature touches (System.Windows.Threading,
Application.Current). Implicit-using set narrows under UseWPF, so
OscMessageTests gains an explicit `using System.IO` and the new
test file gains `using System.Net.Http`.
Tests: 56 → 90 in App.Tests; Engine.Tests unchanged at 103.
Total green: 193. 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.