Isaac Connor 92ab811720 feat: publish analysis images through a shared-memory ring ...

Replace the single alarm_image slot with an analysis_image_buffer ring of
image_buffer_count Images living in the already-reserved alarm_images SHM
region. Successive WriteAlarmImage calls rotate through the ring and
publish last_analysis_index last (after the bytes and per-slot format),
so a reader sampling last_analysis_index always sees a fully written
slot. GetAlarmImage returns that slot, syncing its AVPixelFormat from the
per-slot analysis_image_pixelformats array.

SharedData gains last_analysis_index and analysis_image_count (plus 8
bytes of padding to keep the 16-byte-multiple layout), making it 888
bytes. The Perl (Memory.pm) and PHP (Monitor.php) SHM readers are updated
in lockstep, and a static_assert(sizeof(SharedData)==888) in zm_monitor.h
guards the layout against silent drift.

This lets multiple in-flight analysis/annotated frames be buffered and
streamed in sync rather than always overwriting one slot, and gives the
AI object-detection work a place to publish annotated frames.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-03 14:32:51 -04:00

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lib

feat: publish analysis images through a shared-memory ring

2026-07-03 14:32:51 -04:00

t

feat: add white-light (CanLight) control to HikVision/LTS module refs #4895

2026-06-09 19:59:10 -05:00

CMakeLists.txt

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INSTALL.SKIP

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MANIFEST.SKIP

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