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dragon-iso/CHANGELOG.md
Zac Gaetano daa4068784
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fix(control-surface): reserve loopback URL ACL at install time 
The control surface uses HttpListener (http.sys), which denies prefix
registration to standard users -- on every non-Administrator install the
REST/WebSocket surface died at startup with Access is denied (5), taking
the /ui phone panel and Companion integration with it. The MSI runs
elevated, so it now reserves http://127.0.0.1:9755/ on install and deletes
the reservation on uninstall.

Deliberately NOT the strong wildcard: verified empirically that an idle
http://+:9755/ RESERVATION makes http.sys answer 503 for every request to
the loopback-bound listener without the request ever reaching the app.
The in-app failure guidance suggested exactly that reservation; corrected
to recommend the bound prefix and warn about the stale-wildcard trap.

Verified on a clean install: urlacl present, GET / and /ui and
/participants all 200 as a standard user; reservation removed on
uninstall.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 21:46:12 -04:00

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Changelog

All notable changes to Dragon-ISO are documented here. The format follows Keep a Changelog and this project adheres to Semantic Versioning.

1.2.0-beta.1 — 2026-07-06

Beta pre-release for the framerate and reliability work since 1.1.0.

Engine

  • Exact rational framerate end-to-end — the configured target framerate now flows from settings to every NDI sender as an exact rational (e.g. 59.94 = 60000/1001), and each outgoing video frame is stamped with it. Previously every output advertised 59.94 regardless of configuration; advertising the wrong rational causes drift and A/V desync downstream.
  • Audio FourCC fix — corrected the PCMs16 FourCC constant; audio FourCCs are now pinned by tests to their ASCII packing.
  • Finder rebuild hardening — a failed NDI finder rebuild no longer leaves a disposed finder behind (the self-heal path can retry cleanly).
  • Scaler zero-dimension guard — a source frame with a zero dimension is dropped instead of crashing the pipeline.

Installer

  • MSI ProductVersion now tracks the build version — it was hardcoded to 1.0.0.0, so in-place upgrades (MajorUpgrade) never saw a newer version. Upgrading from an earlier install may require a manual uninstall once.
  • Control surface works out of the box for standard users — the installer now reserves the http.sys URL namespace for http://127.0.0.1:9755/ (removed again on uninstall). Previously the REST/WebSocket control surface failed with "Access is denied" on every non-Administrator launch. Note for LAN-reachable mode: it still needs its own http://+:9755/ reservation (the app logs the exact command), and that reservation must be deleted when reverting to loopback-only — while idle it makes http.sys 503 every request.
  • CAB embedded in the MSI — the installer is a single self-contained file again; distributing only the MSI no longer fails with error 1302.

1.1.0 — 2026-05-31

Rebrand release: TeamsISO becomes Dragon-ISO across source paths, installer metadata, and documentation. No functional engine changes.

1.0.0 — 2026-05-17

First general release. Windows-only, .NET 8 WPF, NDI 6.

Engine

  • Participant discovery over NDI with name cleanup — strips the "MS Teams - " / "(Teams) " prefixes and surfaces the operator-friendly display name.
  • Per-participant ISO outputs with normalized framerate, resolution, aspect mode, and audio routing. Each ISO is an individually-addressable NDI source.
  • NDI Groups support — discovery and sender. One-click "Apply transcoder topology" pins Teams' raw broadcasts to a private Dragon-ISO-input group while Dragon-ISO re-emits on Public.
  • Self-healing finder — if the NDI runtime stalls (zero discovered sources past a startup grace period, or sources go from present to empty and stay that way), the engine rebuilds the finder automatically.
  • Real-time recording — per-output raw BGRA stream + manifest.json
    • an FFmpeg convert.cmd script for post-production conversion to H.264 MKV. Recording is opt-in globally and per-participant.

UI — "Studio Terminal"

  • Dark and light themes with a runtime swap and a system-follow mode. The Wild Dragon mark, the participants-grid watermark, and every accent brush respond to the active theme.
  • Header: brand mark, theme toggle, settings gear.
  • Transport strip: session timer, participant count, live ISO count, control-surface URL — at-a-glance status.
  • Participants table: 24px state LED, 106px live thumbnail preview, name + caption, 5-bar audio meter, inline-editable output name, CFG button (per-row override editor), ISO enable pill.
  • Settings drawer — slide-over from the right with OUTPUT / NETWORK / APP tabs.
  • Ctrl+K command palette — fuzzy search across Quick / Teams / Presets / Output / Network / App categories.
  • Live preview thumbnails in the participants table; right-click → Open preview… spawns a non-modal floating window suitable for a secondary monitor.

Output name template

  • New default: the speaker's display name ({name}). Per-participant overrides are inline-editable in the table. Empty-name fallback to Dragon-ISO_{guid} keeps the NDI sender uniquely identifiable while a participant's display name resolves upstream.
  • Available tokens: {name}, {guid}, {machine}, {timestamp}.

Operator presets

  • Save current per-participant ISO assignments + custom output names to %LOCALAPPDATA%\Dragon-ISO\presets.json. Optional auto-apply on next launch.

Teams orchestration

  • Launch / stop Teams from the app.
  • Hide Teams' UI windows during a show.
  • Drive in-call controls (mute, camera, share, leave, raise hand) via UIAutomation.

External control surface

  • REST + WebSocket on 127.0.0.1:9755 for Bitfocus Companion / Stream Deck / custom controllers.
  • OSC on UDP 127.0.0.1:9000 for TouchOSC.
  • Self-contained HTML control panel at /ui — open from any phone on the LAN.

Diagnostics & installer

  • Rolling daily Serilog logs under %LOCALAPPDATA%\Dragon-ISO\logs\.
  • Diagnostic bundle export — zips logs + config + presets for bug reports.
  • Forgejo-backed update check (manual or silent-on-launch, throttled to 24h).
  • WiX MSI installer with proper Add/Remove Programs metadata, Start Menu
    • Desktop shortcuts, and in-place upgrade.