Resilience improvement — раньше pipeline mог hung без exit (NVENC stuck,
output broken pipe), Docker restart policy не triggered. Никакой alert.
Now: poll mediamtx /v3/rtspsessions/list каждые N sec, track publish session
inboundBytes. Не растёт 3 polls (~9 sec) → emit MQTT 'pipeline_stalled' event
(через dispatcher.on_event = mqtt.publish_event). User / Home Assistant
automation решает что делать (restart container, notify).
Wired:
pipeline_monitor.on_event = mqtt.publish_event # __main__.py
Bytes started growing again → emit 'pipeline_unstalled'.
Alert single-shot: пока stalled flag set, no dup alerts. Reset когда
bytes counter растёт.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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