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WebRTC audio mirror: AAC cannot cross WebRTC, so transcode audio to Opus into <path>.webrtc

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bin/mtx-on-ready.sh (runOnReady inside the mediamtx container) posts the is-live notice and, for sources whose
audio is not Opus, runs ffmpeg: video copy, audio -> Opus, published over MediaMTX's loopback RTSP to
<user>/<Title>.webrtc (record: no). dumpd accepts .webrtc publishes only from 127.0.0.1. The portal hides
mirror paths, plays the mirror over WHEP (HLS stays on the source), holds an AAC source for 15 s while its
mirror comes up, and corrects the viewer count. Verified headless with a mocked path list.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Brandyn / Techy
2026-11-01 13:58:15 -06:00
parent f060277167
commit 9bdf9f1947
8 changed files with 99 additions and 26 deletions
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STATUS.md
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@@ -50,7 +50,7 @@ Source of truth: this repo, `techy/Media-Server-Setup` on the stack's own Gitea
| Service | Role | State |
|---|---|---|
| MediaMTX | RTMP/SRT ingest, records fMP4; publish auth delegated to dumpd (tokens via `/mtx-auth`) | live, token auth verified |
| MediaMTX | RTMP/SRT ingest, records fMP4; publish auth delegated to dumpd (tokens via `/mtx-auth`); on-ready hook posts "is live" and runs the WebRTC audio mirror (`<path>.webrtc`, audio → Opus, never recorded) | live, token auth verified |
| copyparty | browse/scrub/download/finals upload | behind Authentik, group permissions (`editors`, `media-admins`), Discord-only, no WebDAV | live |
| dumpd + dock | dump, stream tokens, MediaMTX auth hook, `/time`, `/me` identity (on `live.`), `/me/clips` Syncthing self-service (on `clips.`); OBS dock with timecode-band setup | identity from Authentik headers | live |
| `media.` gateway, `clips.` self-service | static pages behind the gate | — | live (first real pairing pending) |
@@ -71,6 +71,7 @@ Source of truth: this repo, `techy/Media-Server-Setup` on the stack's own Gitea
## Unfinished, in rough priority
0a. **WebRTC audio** (found 2026-11-01 with the 5-stream test): AAC cannot cross WebRTC, so the portal was silent unless it fell back to HLS. Fix committed: audio mirror in `bin/mtx-on-ready.sh` + portal mapping. **Deploy pending** (MediaMTX recreate between streams; dumpd restart; portal push). Streamers must set B-frames 0 for WebRTC playback.
0. **Band removal**: deployed 2026-11-01; `vgdeband.sh` catch-up ran on the Vanguard-Training recordings (check `journalctl -u vgdeband` for the done lines). Live portal: viewer now clips the band with a measured game-aspect frame (refits on every dockview resize/move) — committed 2026-11-01, deploy with `./deployLive.sh`.
1. Roles→groups policy: bound and updated (revokes only its own grants); will be proven by the next natural Discord logins (`/whoami` should show `bot-users`). Nested groups **verified 2026-11-01**: `git-admins` now reaches the header via the `Vanguard profile (nested groups)` scope mapping (README 5e). `akadmin` remains the recovery login if a policy misfires.