Frigate: check OpenVino model files exist before configuring detector and use curl_with_retry instead of default wget (#13019)

* fix(frigate): check OpenVino model files exist before configuring detector

When the OpenVino model build fails (e.g. TensorFlow import error),
the model files are not created but the config still references them
if the CPU supports avx/sse4_2, causing Frigate to crash on start
with FileNotFoundError.

Now also checks that ssdlite_mobilenet_v2.xml and coco_91cl_bkgr.txt
actually exist before configuring the OpenVino detector, falling back
to CPU model otherwise.

Fixes #12808

* fix(frigate): use curl_with_retry for all downloads

Replace all wget and bare curl calls with curl_with_retry from
tools.func for robust downloads with retry logic, exponential
backoff, and DNS pre-checks. This prevents install failures from
transient network issues during model and dependency downloads.

Author: MickLesk

install/frigate-install.sh

@@ -146,7 +146,7 @@ ldconfig
 msg_ok "Built libUSB"
 
 msg_info "Bootstrapping pip"
-wget -q https://bootstrap.pypa.io/get-pip.py -O /tmp/get-pip.py
+curl_with_retry "https://bootstrap.pypa.io/get-pip.py" "/tmp/get-pip.py"
 sed -i 's/args.append("setuptools")/args.append("setuptools==77.0.3")/' /tmp/get-pip.py
 $STD python3 /tmp/get-pip.py "pip"
 rm -f /tmp/get-pip.py
@@ -169,13 +169,13 @@ NODE_VERSION="20" setup_nodejs
 
 msg_info "Downloading Inference Models"
 mkdir -p /models /openvino-model
-wget -q -O /edgetpu_model.tflite https://github.com/google-coral/test_data/raw/release-frogfish/ssdlite_mobiledet_coco_qat_postprocess_edgetpu.tflite
-wget -q -O /models/cpu_model.tflite https://github.com/google-coral/test_data/raw/release-frogfish/ssdlite_mobiledet_coco_qat_postprocess.tflite
+curl_with_retry "https://github.com/google-coral/test_data/raw/release-frogfish/ssdlite_mobiledet_coco_qat_postprocess_edgetpu.tflite" "/edgetpu_model.tflite"
+curl_with_retry "https://github.com/google-coral/test_data/raw/release-frogfish/ssdlite_mobiledet_coco_qat_postprocess.tflite" "/models/cpu_model.tflite"
 cp /opt/frigate/labelmap.txt /labelmap.txt
 msg_ok "Downloaded Inference Models"
 
 msg_info "Downloading Audio Model"
-wget -q -O /tmp/yamnet.tar.gz https://www.kaggle.com/api/v1/models/google/yamnet/tfLite/classification-tflite/1/download
+curl_with_retry "https://www.kaggle.com/api/v1/models/google/yamnet/tfLite/classification-tflite/1/download" "/tmp/yamnet.tar.gz"
 $STD tar xzf /tmp/yamnet.tar.gz -C /
 mv /1.tflite /cpu_audio_model.tflite
 cp /opt/frigate/audio-labelmap.txt /audio-labelmap.txt
@@ -205,7 +205,7 @@ msg_ok "Installed OpenVino"
 
 msg_info "Building OpenVino Model"
 cd /models
-wget -q http://download.tensorflow.org/models/object_detection/ssdlite_mobilenet_v2_coco_2018_05_09.tar.gz
+curl_with_retry "http://download.tensorflow.org/models/object_detection/ssdlite_mobilenet_v2_coco_2018_05_09.tar.gz" "ssdlite_mobilenet_v2_coco_2018_05_09.tar.gz"
 $STD tar -zxf ssdlite_mobilenet_v2_coco_2018_05_09.tar.gz --no-same-owner
 if python3 /opt/frigate/docker/main/build_ov_model.py &>/dev/null; then
   mkdir -p /openvino-model
@@ -219,7 +219,7 @@ if python3 /opt/frigate/docker/main/build_ov_model.py &>/dev/null; then
     if [[ -n "$OV_LABELS" ]]; then
       ln -sf "$OV_LABELS" /openvino-model/coco_91cl_bkgr.txt
     else
-      wget -q "https://raw.githubusercontent.com/openvinotoolkit/open_model_zoo/master/data/dataset_classes/coco_91cl_bkgr.txt" -O /openvino-model/coco_91cl_bkgr.txt
+      curl_with_retry "https://raw.githubusercontent.com/openvinotoolkit/open_model_zoo/master/data/dataset_classes/coco_91cl_bkgr.txt" "/openvino-model/coco_91cl_bkgr.txt"
     fi
   fi
   sed -i 's/truck/car/g' /openvino-model/coco_91cl_bkgr.txt
@@ -246,7 +246,7 @@ msg_info "Configuring Frigate"
 mkdir -p /config /media/frigate
 cp -r /opt/frigate/config/. /config
 
-curl -fsSL "https://github.com/intel-iot-devkit/sample-videos/raw/master/person-bicycle-car-detection.mp4" -o "/media/frigate/person-bicycle-car-detection.mp4"
+curl_with_retry "https://github.com/intel-iot-devkit/sample-videos/raw/master/person-bicycle-car-detection.mp4" "/media/frigate/person-bicycle-car-detection.mp4"
 
 echo "tmpfs   /tmp/cache      tmpfs   defaults        0       0" >>/etc/fstab
 
@@ -289,7 +289,7 @@ detect:
   enabled: false
 EOF
 
-if grep -q -o -m1 -E 'avx[^ ]*|sse4_2' /proc/cpuinfo; then
+if grep -q -o -m1 -E 'avx[^ ]*|sse4_2' /proc/cpuinfo && [[ -f /openvino-model/ssdlite_mobilenet_v2.xml ]] && [[ -f /openvino-model/coco_91cl_bkgr.txt ]]; then
   cat <<EOF >>/config/config.yml
 ffmpeg:
   hwaccel_args: auto