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recycle replay camera on detect update

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This commit is contained in:
Josh Hawkins 2026-05-22 08:47:02 -05:00
parent d9dfe299a4
commit 270a0af840
1 changed files with 30 additions and 0 deletions
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30
frigate/camera/maintainer.py
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@ -14,6 +14,7 @@ from frigate.config.camera.updater import (
CameraConfigUpdateEnum,
CameraConfigUpdateSubscriber,
)
from frigate.const import REPLAY_CAMERA_PREFIX
from frigate.models import Regions
from frigate.util.builtin import empty_and_close_queue
from frigate.util.image import SharedMemoryFrameManager, UntrackedSharedMemory
@ -50,6 +51,7 @@ class CameraMaintainer(threading.Thread):
[
CameraConfigUpdateEnum.add,
CameraConfigUpdateEnum.remove,
CameraConfigUpdateEnum.detect,
],
)
self.shm_count = self.__calculate_shm_frame_count()
@ -279,6 +281,34 @@ class CameraMaintainer(threading.Thread):
self.region_grids.pop(camera, None)
self.camera_metrics.pop(camera, None)
self.ptz_metrics.pop(camera, None)
elif update_type == CameraConfigUpdateEnum.detect.name:
# Recycle replay cameras so detect width/height/fps
# propagate through ffmpeg args, SHM sizing, and the
# region grid. Regular cameras detect change still
# requires a full restart.
for camera in updated_cameras:
if not camera.startswith(REPLAY_CAMERA_PREFIX):
continue
new_config = self.update_subscriber.camera_configs.get(camera)
if new_config is None:
# remove arrived in the same batch
continue
if (
camera not in self.camera_processes
and camera not in self.capture_processes
):
continue
self.__stop_camera_capture_process(camera)
self.__stop_camera_process(camera)
self.__unlink_camera_frame_slots(camera)
self.capture_processes.pop(camera, None)
self.camera_processes.pop(camera, None)
self.__start_camera_processor(camera, new_config, runtime=True)
self.__start_camera_capture(camera, new_config, runtime=True)
# ensure the capture processes are done
for camera in self.capture_processes.keys():