Add command-line image processing option and fix deprecated MQTT client usage

- Removed deprecated MQTTv311 protocol usage. - Added functionality to process an image provided via command line. - Retained MQTT handling for normal message flow.
Add mechanism to request a fresh snapshot upon connecting
2024-10-20 18:01:31 +11:00 · 2024-10-20 17:55:05 +11:00 · 2024-10-20 17:52:41 +11:00
1 changed files with 13 additions and 250 deletions
@@ -6,6 +6,7 @@ import cv2
 import base64
 import json
 import tempfile
+import sys

 # Configuration
 MQTT_BROKER = os.environ.get('MQTT_BROKER', '10.59.221.172')
@@ -107,265 +108,27 @@ def connect_mqtt():
            print(f"Connection failed: {e}. Retrying in 5 seconds...")
            time.sleep(5)

-client = mqtt.Client(protocol=mqtt.MQTTv311)
-client.username_pw_set(MQTT_USERNAME, MQTT_PASSWORD)
-client.on_connect = on_connect
-client.on_message = on_message
-client.enable_logger()
-
-connect_mqtt()
-client.loop_start()
-
-# Keep the script running
-while True:
-    time.sleep(1)
-
-import os
-import time
-import paho.mqtt.client as mqtt
-import numpy as np
-import cv2
-import base64
-import json
-import tempfile
-
-# Configuration
-MQTT_BROKER = os.environ.get('MQTT_BROKER', '10.59.221.172')
-MQTT_PORT = int(os.environ.get('MQTT_PORT', '1883'))
-MQTT_USERNAME = os.getenv('MQTT_USERNAME', 'your_username')
-MQTT_PASSWORD = os.getenv('MQTT_PASSWORD', 'your_password')
-MQTT_SNAPSHOT_TOPIC = "/frigate/patiocam/person/snapshot"
-MQTT_TOPIC_PUBLISH = "homeassistant/sensor/dayglo_rating/state"
-DISCOVERY_PREFIX = "homeassistant"
-
-# Default rating
-last_rating = 0
-
-# Default color thresholds for dayglo detection
-LOWER_COLOR = np.array([20, 100, 100])
-UPPER_COLOR = np.array([40, 255, 255])
-
-# Track if the initial snapshot has been processed
-initial_snapshot_processed = False
-
-def on_connect(client, userdata, flags, rc):
-    if rc == 0:
-        print("Connected successfully to MQTT broker")
-        client.subscribe(MQTT_SNAPSHOT_TOPIC, qos=1)
-        print(f"Subscribed to topic: {MQTT_SNAPSHOT_TOPIC}")
-        publish_discovery_configurations()
-        # Publish initial rating of 0
-        publish_rating(0)
-        # Attempt to request the retained snapshot message
-        client.publish(MQTT_SNAPSHOT_TOPIC, "", qos=1)
-    else:
-        print(f"Failed to connect, return code {rc}")
-
-def publish_discovery_configurations():
-    rating_config = {
-        "name": "Dayglo Rating",
-        "state_topic": MQTT_TOPIC_PUBLISH,
-        "unit_of_measurement": "%",
-        "value_template": "{{ value_json.rating }}",
-        "icon": "mdi:brush",
-        "unique_id": "mqtt_dayglo_rating"
-    }
-    client.publish(f"{DISCOVERY_PREFIX}/sensor/dayglo_rating/config", json.dumps(rating_config), retain=True)
-
-def publish_rating(rating):
-    global last_rating
-    last_rating = rating
-    client.publish(MQTT_TOPIC_PUBLISH, json.dumps({"rating": rating}))
-
-def on_message(client, userdata, msg):
-    global initial_snapshot_processed
-    if msg.topic == MQTT_SNAPSHOT_TOPIC:
-        print("Snapshot received")
-        if len(msg.payload) == 0:
-            print("Received an empty payload, skipping processing.")
-        else:
-            print(f"Payload length: {len(msg.payload)} bytes")
-            print(f"Payload (first 100 bytes): {msg.payload[:100]}...")
-            process_snapshot(msg.payload)
-            initial_snapshot_processed = True
-
-def process_snapshot(payload):
-    if not payload:
-        print("Empty payload received, skipping processing.")
-        return
-
-    print("Processing snapshot...")
-    try:
-        image_data = base64.b64decode(payload)
-        with tempfile.NamedTemporaryFile(suffix=".jpg", delete=False) as temp_image_file:
-            temp_image_file.write(image_data)
-            temp_image_path = temp_image_file.name
-
-        # Attempt to read the saved image with OpenCV
-        image = cv2.imread(temp_image_path)
-
+# Handle command line argument for image file
+if len(sys.argv) > 1:
+    image_file = sys.argv[1]
+    if os.path.exists(image_file):
+        print(f"Processing image from file: {image_file}")
+        image = cv2.imread(image_file)
        if image is not None:
            rating = calculate_dayglo_rating(image)
-            print("Dayglo Rating calculated:", rating)
-            publish_rating(rating)
+            print("Dayglo Rating calculated from file:", rating)
        else:
-            print("Invalid image format or corrupted image received")
-    except Exception as e:
-        print(f"Error processing snapshot: {e}")
-
-def calculate_dayglo_rating(image):
-    print("Calculating dayglo rating...")
-    hsv_image = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
-    mask = cv2.inRange(hsv_image, LOWER_COLOR, UPPER_COLOR)
-    dayglo_pixels = cv2.countNonZero(mask)
-    total_pixels = image.shape[0] * image.shape[1]
-    rating = (dayglo_pixels / total_pixels) * 100
-    return rating
-
-def connect_mqtt():
-    while True:
-        try:
-            client.connect(MQTT_BROKER, MQTT_PORT, 60)
-            break
-        except Exception as e:
-            print(f"Connection failed: {e}. Retrying in 5 seconds...")
-            time.sleep(5)
-
-client = mqtt.Client(protocol=mqtt.MQTTv311)
-client.username_pw_set(MQTT_USERNAME, MQTT_PASSWORD)
-client.on_connect = on_connect
-client.on_message = on_message
-client.enable_logger()
-
-connect_mqtt()
-client.loop_start()
-
-# Keep the script running
-while True:
-    time.sleep(1)
-
-import os
-import time
-import paho.mqtt.client as mqtt
-import numpy as np
-import cv2
-import base64
-import json
-import tempfile
-
-# Configuration
-MQTT_BROKER = os.environ.get('MQTT_BROKER', '10.59.221.172')
-MQTT_PORT = int(os.environ.get('MQTT_PORT', '1883'))
-MQTT_USERNAME = os.getenv('MQTT_USERNAME', 'your_username')
-MQTT_PASSWORD = os.getenv('MQTT_PASSWORD', 'your_password')
-MQTT_SNAPSHOT_TOPIC = "/frigate/patiocam/person/snapshot"
-MQTT_TOPIC_PUBLISH = "homeassistant/sensor/dayglo_rating/state"
-DISCOVERY_PREFIX = "homeassistant"
-
-# Default rating
-last_rating = 0
-
-# Default color thresholds for dayglo detection
-LOWER_COLOR = np.array([20, 100, 100])
-UPPER_COLOR = np.array([40, 255, 255])
-
-# Track if the initial snapshot has been processed
-initial_snapshot_processed = False
-
-def on_connect(client, userdata, flags, rc):
-    if rc == 0:
-        print("Connected successfully to MQTT broker")
-        client.subscribe(MQTT_SNAPSHOT_TOPIC, qos=1)
-        print(f"Subscribed to topic: {MQTT_SNAPSHOT_TOPIC}")
-        publish_discovery_configurations()
-        # Publish initial rating of 0
-        publish_rating(0)
+            print("Invalid image file provided.")
    else:
-        print(f"Failed to connect, return code {rc}")
+        print(f"File not found: {image_file}")

-def publish_discovery_configurations():
-    rating_config = {
-        "name": "Dayglo Rating",
-        "state_topic": MQTT_TOPIC_PUBLISH,
-        "unit_of_measurement": "%",
-        "value_template": "{{ value_json.rating }}",
-        "icon": "mdi:brush",
-        "unique_id": "mqtt_dayglo_rating"
-    }
-    client.publish(f"{DISCOVERY_PREFIX}/sensor/dayglo_rating/config", json.dumps(rating_config), retain=True)
-
-def publish_rating(rating):
-    global last_rating
-    last_rating = rating
-    client.publish(MQTT_TOPIC_PUBLISH, json.dumps({"rating": rating}))
-
-def on_message(client, userdata, msg):
-    global initial_snapshot_processed
-    if msg.topic == MQTT_SNAPSHOT_TOPIC:
-        print("Snapshot received")
-        if len(msg.payload) == 0:
-            print("Received an empty payload, skipping processing.")
-        else:
-            print(f"Payload length: {len(msg.payload)} bytes")
-            print(f"Payload (first 100 bytes): {msg.payload[:100]}...")
-            process_snapshot(msg.payload)
-            initial_snapshot_processed = True
-
-def process_snapshot(payload):
-    if not payload:
-        print("Empty payload received, skipping processing.")
-        return
-
-    print("Processing snapshot...")
-    try:
-        image_data = base64.b64decode(payload)
-        with tempfile.NamedTemporaryFile(suffix=".jpg", delete=False) as temp_image_file:
-            temp_image_file.write(image_data)
-            temp_image_path = temp_image_file.name
-
-        # Attempt to read the saved image with OpenCV
-        image = cv2.imread(temp_image_path)
-
-        if image is not None:
-            rating = calculate_dayglo_rating(image)
-            print("Dayglo Rating calculated:", rating)
-            publish_rating(rating)
-        else:
-            print("Invalid image format or corrupted image received")
-    except Exception as e:
-        print(f"Error processing snapshot: {e}")
-
-def calculate_dayglo_rating(image):
-    print("Calculating dayglo rating...")
-    hsv_image = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
-    mask = cv2.inRange(hsv_image, LOWER_COLOR, UPPER_COLOR)
-    dayglo_pixels = cv2.countNonZero(mask)
-    total_pixels = image.shape[0] * image.shape[1]
-    rating = (dayglo_pixels / total_pixels) * 100
-    return rating
-
-def connect_mqtt():
-    while True:
-        try:
-            client.connect(MQTT_BROKER, MQTT_PORT, 60)
-            break
-        except Exception as e:
-            print(f"Connection failed: {e}. Retrying in 5 seconds...")
-            time.sleep(5)
-
-client = mqtt.Client(protocol=mqtt.MQTTv311)
+# Set up MQTT client for normal operation
+client = mqtt.Client()
 client.username_pw_set(MQTT_USERNAME, MQTT_PASSWORD)
 client.on_connect = on_connect
 client.on_message = on_message
 client.enable_logger()

 connect_mqtt()
-client.loop_start()
-
-# Allow some time for the retained message to be received
-time.sleep(5)
-
-# Keep the script running
-while True:
-    time.sleep(1)
+client.loop_forever()