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b420efdebd
Adds a per-camera ONVIF subscriber that lets cameras with native
hardware motion detection (e.g. OpenIPC firmware for HiSilicon,
Ingenic and SigmaStar SoCs; many ONVIF Profile-M devices) replace
Frigate's per-frame CPU motion analysis. Two standard ONVIF
transports are consumed in parallel:
- WS-BaseNotification PullPoint for the binary motion state
(tns1:RuleEngine/CellMotionDetector/Motion IsMotion=true|false,
with tns1:VideoSource/MotionAlarm State=true|false accepted as
a fallback for cameras that only publish the legacy topic).
- RTSP analytics metadata stream (application/vnd.onvif.metadata)
for the per-frame cell grid (tt:MotionInCells, base64 + PackBits
bit-packed bitmap). Cell layout is discovered once at startup via
AnalyticsService.GetAnalyticsModules and the camera's CellLayout
transformation is used to map cells to detect-frame pixel
rectangles via connected-components.
New config:
onvif.events.{enabled, subscription_timeout, use_metadata_stream}
motion.source: internal (default) | onvif
When motion.source: onvif, ImprovedMotionDetector is skipped and
motion_boxes come from the camera. Internal motion remains the
default; the new path is fully opt-in.
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