Require setting process priority for FrigateProcess (#19207)

frigate/record/export.py

@@ -21,6 +21,7 @@ from frigate.const import (
     EXPORT_DIR,
     MAX_PLAYLIST_SECONDS,
     PREVIEW_FRAME_TYPE,
+    PROCESS_PRIORITY_LOW,
 )
 from frigate.ffmpeg_presets import (
     EncodeTypeEnum,
@@ -36,7 +37,7 @@ TIMELAPSE_DATA_INPUT_ARGS = "-an -skip_frame nokey"
 
 
 def lower_priority():
-    os.nice(10)
+    os.nice(PROCESS_PRIORITY_LOW)
 
 
 class PlaybackFactorEnum(str, Enum):

frigate/record/record.py

@@ -6,6 +6,7 @@ from multiprocessing.synchronize import Event as MpEvent
 from playhouse.sqliteq import SqliteQueueDatabase
 
 from frigate.config import FrigateConfig
+from frigate.const import PROCESS_PRIORITY_HIGH
 from frigate.models import Recordings, ReviewSegment
 from frigate.record.maintainer import RecordingMaintainer
 from frigate.util.process import FrigateProcess
@@ -15,7 +16,12 @@ logger = logging.getLogger(__name__)
 
 class RecordProcess(FrigateProcess):
     def __init__(self, config: FrigateConfig, stop_event: MpEvent) -> None:
-        super().__init__(stop_event, name="frigate.recording_manager", daemon=True)
+        super().__init__(
+            stop_event,
+            PROCESS_PRIORITY_HIGH,
+            name="frigate.recording_manager",
+            daemon=True,
+        )
         self.config = config
 
     def run(self) -> None: