downgrade to python3.6

frigate/app.py

@@ -1,6 +1,7 @@
 import json
 import logging
 import multiprocessing as mp
+import shared_memory
 import os
 import signal
 import sys
@@ -41,7 +42,7 @@ class FrigateApp:
         self.detection_queue = mp.Queue()
         self.detectors: Dict[str, EdgeTPUProcess] = {}
         self.detection_out_events: Dict[str, mp.Event] = {}
-        self.detection_shms: List[mp.shared_memory.SharedMemory] = []
+        self.detection_shms: List[shared_memory.SharedMemory] = []
         self.log_queue = mp.Queue()
         self.camera_metrics = {}
 
@@ -163,20 +164,20 @@ class FrigateApp:
             self.detection_out_events[name] = mp.Event()
 
             try:
-                shm_in = mp.shared_memory.SharedMemory(
+                shm_in = shared_memory.SharedMemory(
                     name=name,
                     create=True,
                     size=self.config.model.height * self.config.model.width * 3,
                 )
             except FileExistsError:
-                shm_in = mp.shared_memory.SharedMemory(name=name)
+                shm_in = shared_memory.SharedMemory(name=name)
 
             try:
-                shm_out = mp.shared_memory.SharedMemory(
+                shm_out = shared_memory.SharedMemory(
                     name=f"out-{name}", create=True, size=20 * 6 * 4
                 )
             except FileExistsError:
-                shm_out = mp.shared_memory.SharedMemory(name=f"out-{name}")
+                shm_out = shared_memory.SharedMemory(name=f"out-{name}")
 
             self.detection_shms.append(shm_in)
             self.detection_shms.append(shm_out)

frigate/config.py

@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import json
 import logging
 import os
@@ -868,7 +866,7 @@ class FrigateConfig(FrigateBaseModel):
     )
 
     @property
-    def runtime_config(self) -> FrigateConfig:
+    def runtime_config(self):
         """Merge camera config with globals."""
         config = self.copy(deep=True)
 

frigate/edgetpu.py

@@ -7,8 +7,10 @@ import signal
 import threading
 from abc import ABC, abstractmethod
 from typing import Dict
+import shared_memory
 
 import numpy as np
+# TensorRT https://github.com/NobuoTsukamoto/tensorrt-examples/blob/main/python/detection/README.md
 import tflite_runtime.interpreter as tflite
 from setproctitle import setproctitle
 from tflite_runtime.interpreter import load_delegate
@@ -139,7 +141,7 @@ def run_detector(
 
     outputs = {}
     for name in out_events.keys():
-        out_shm = mp.shared_memory.SharedMemory(name=f"out-{name}", create=False)
+        out_shm = shared_memory.SharedMemory(name=f"out-{name}", create=False)
         out_np = np.ndarray((20, 6), dtype=np.float32, buffer=out_shm.buf)
         outputs[name] = {"shm": out_shm, "np": out_np}
 
@@ -228,11 +230,11 @@ class RemoteObjectDetector:
         self.fps = EventsPerSecond()
         self.detection_queue = detection_queue
         self.event = event
-        self.shm = mp.shared_memory.SharedMemory(name=self.name, create=False)
+        self.shm = shared_memory.SharedMemory(name=self.name, create=False)
         self.np_shm = np.ndarray(
             (1, model_shape[0], model_shape[1], 3), dtype=np.uint8, buffer=self.shm.buf
         )
-        self.out_shm = mp.shared_memory.SharedMemory(
+        self.out_shm = shared_memory.SharedMemory(
             name=f"out-{self.name}", create=False
         )
         self.out_np_shm = np.ndarray((20, 6), dtype=np.float32, buffer=self.out_shm.buf)

frigate/http.py

@@ -610,7 +610,8 @@ def recording_clip(camera, start_ts, end_ts):
         ffmpeg_cmd,
         input="\n".join(playlist_lines),
         encoding="ascii",
-        capture_output=True,
+        stdout=sp.PIPE,
+        stderr=sp.PIPE,
     )
     if p.returncode != 0:
         logger.error(p.stderr)

frigate/output.py

@@ -7,7 +7,6 @@ import queue
 import signal
 import subprocess as sp
 import threading
-from multiprocessing import shared_memory
 from wsgiref.simple_server import make_server
 from frigate.log import LogPipe
 

frigate/record.py

@@ -502,7 +502,8 @@ class RecordingCleanup(threading.Thread):
         logger.debug(f"Oldest recording in the db: {oldest_timestamp}")
         process = sp.run(
             ["find", RECORD_DIR, "-type", "f", "!", "-newermt", f"@{oldest_timestamp}"],
-            capture_output=True,
+            stdout=sp.PIPE,
+            stderr=sp.PIPE,
             text=True,
         )
         files_to_check = process.stdout.splitlines()

frigate/util.py

@@ -11,7 +11,8 @@ import threading
 import time
 import traceback
 from abc import ABC, abstractmethod
-from multiprocessing import shared_memory
+#from multiprocessing import shared_memory
+import shared_memory
 from typing import AnyStr
 
 import cv2

process_clip.py

@@ -44,7 +44,7 @@ def get_frame_shape(source):
         "json",
         source,
     ]
-    p = sp.run(ffprobe_cmd, capture_output=True)
+    p = sp.run(ffprobe_cmd, stdout=sp.PIPE, stderr=sp.PIPE)
     info = json.loads(p.stdout)
 
     video_info = [s for s in info["streams"] if s["codec_type"] == "video"][0]