"I forgot the VPN" used to create a broadcast on YouTube that nothing ever pushed to: the app looked
live, YouTube held an empty broadcast, and the creator had to work out what happened. Prevention beats
recovery here, so go-live now asks one question first.
- `Services/IngestProbe.cs` — `IIngestProbe` + `TcpIngestProbe`: parse the RTMP URL, connect to the host
(rtmp → 1935, rtmps → 443) with a 2 s timeout. Any failure answers "not reachable"; the point is a
fast unambiguous answer, not a diagnosis.
- `MainViewModel.IngestPreflightAsync` runs **before the first API call** whenever a cached ingest URL
exists; on a first run it probes once the stream is resolved, still before any broadcast is created.
A false answer logs, tells the creator ("Nothing was created on YouTube…"), and rolls the session
back — nothing to clean up on YouTube.
- The probe is a test seam (`IngestProbeOverride`) like the camera and chroma ones.
Tests: `IngestPreflightTests` — unreachable aborts, reachable continues, URL parsing (rtmp/rtmps,
garbage), and the probe against **real sockets**: a listening port answers true, the same port closed
answers false and does so fast. FAST gate: 547 passed, 0 failed, 0 warnings.
2.4 KiB
2.4 KiB
HANDOFF — 2026-11-05 (alert stack + media/chroma fixes)
State
main. TASK 21 (video layer + soundtrack), TASK 64 (green/blue screen) and TASK 32·4 (fragmented MP4) are complete; TASK 49 is retired (YouTube owns chat moderation — we just don't paint tombstones).- Left panel alert stack shipped: Steam licence indicator pinned at row 1 (
Entitlement 30 fps · Maximum 60 fps, pin → close once owned, permanent while owned), event rows LIFO beneath, click → About or the Logs tab with that event's lines painted. Detail:docs/ai/ui-surface.md. - Video layer fixes this session: the preview-pane trigger whitelist (a video layer was invisible), a quadratic frame copy that capped 1080p playback at 2 fps, and deadline pacing for video and audio.
- Tests: 575 green, 1m50s;
FAST=1 ./scripts/verify.sh= 527 in ~62s.
Next action
- 32·1 + 32·2 shipped: blip retry (immediate/+1/+2/+3 s), and the RECONNECTING sign driven by the
status poll (4 s cadence while recovering) with measured elapsed/attempt only — the countdown was
dropped after the creator pointed out YouTube's cutoff depends on variables we cannot see. The
chatEndedEventin the chat feed now prompts an immediate status check. - 32·5 shipped: ingest pre-flight (TCP, 2 s) aborts go-live before any API call, so a dead network leaves no ghost broadcast.
- Next: then 32·2/32·3 (countdown + Back on air) which need YOUR measurement take: pull the network on a private stream and time how long YouTube holds the broadcast.
- Open loop:
32·4is proven by construction only — kill ffmpeg mid-recording and play the file. - Do not push absent a checkpoint request.
Landmines
- The preview pane draws frame-source layers from a whitelist of DataTriggers. A layer type with no
trigger is invisible in the preview while its decode looks healthy (alert box 2026-09-26, scoreboard,
video layer 2026-11-05). Add the trigger with the layer type; pin it with
MediaPreviewDisplayTests. - Nothing in the suite drives the real cursor any more; the drag arithmetic is pure (
DragReorderMathTests). - Integration tests constructing
MainWindowmust set a temporaryLayoutPathOverrideand clear it infinally. - Media sessions are keyed by path + look (
MainViewModel.MediaSessionKey); never acquire by raw path. - Bundled FFmpeg stays outside the single-file exe (
ExcludeFromSingleFile="true").