Every plugin source connected with auto_subscribe on, so each one pulled
every camera in the room and discarded all but one. In the 2026-10-04
old-gods-of-appalachia show (8 sources, 7 cameras) each source carried
4-7 Mbps and all 8 hit congestion in the same instant: they share the
director's single downlink, so the SFU starved the cameras on screen.
The session now connects with auto_subscribe off and calls
setSubscribed(true) on exactly the wanted publications: at connect, on
onTrackPublished (re-sweeping the participant, since SDK 1.10.1 delivers
that event's publication null), and after a reconnect. Any subscription
it did not ask for is reported and handed back. Audio-only sources no
longer subscribe-then-disable video; they never subscribe to it.
The integration test gains a bystander camera that must never be
subscribed (fails with 3 unwanted subscriptions before this change) and
a full publisher leave/rejoin as a new participant session.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
shadowdaoandClaude Opus 5.5