Turn server

INSTALLATION.md

@@ -8,3 +8,7 @@
 ## Ubuntu requirements
 
 - `sudo apt-get install python3.10-dev build-essential ffmpeg`
+
+## Setup Turn Server
+
+- Use [Turn Server](https://www.expressturn.com)

app.py

@@ -10,6 +10,7 @@ import threading
 
 lock = threading.Lock()
 
+
 class FrameRate:
     def __init__(self) -> None:
         self.c: int = 0
@@ -33,31 +34,42 @@ class FrameRate:
     def show_fps(self, image: np.ndarray) -> np.ndarray:
         if self.fps != -1:
             return cv2.putText(
-                image, 
-                f'FPS {self.fps:.0f}', 
-                (50, 50), 
-                cv2.FONT_HERSHEY_SIMPLEX, 
-                fontScale=1, 
-                color=(255, 0, 0), 
-                thickness=2
+                image,
+                f"FPS {self.fps:.0f}",
+                (50, 50),
+                cv2.FONT_HERSHEY_SIMPLEX,
+                fontScale=1,
+                color=(255, 0, 0),
+                thickness=2,
             )
         else:
             return image
 
 
 rtc_configuration = {
-    "iceServers": [{"urls": [
-        "stun:stun1.l.google.com:19302",
-        "stun:stun2.l.google.com:19302",
-        "stun:stun3.l.google.com:19302",
-        "stun:stun4.l.google.com:19302",
-    ]}],
+    "iceServers": [
+        {
+            "urls": "turn:relay1.expressturn.com:3478",
+            "username": "efBRTY571ATWBRMP36",
+            "credential": "pGcX1BPH5fMmZJc5",
+        },
+        # {
+        #     "urls": [
+        #         "stun:stun1.l.google.com:19302",
+        #         "stun:stun2.l.google.com:19302",
+        #         "stun:stun3.l.google.com:19302",
+        #         "stun:stun4.l.google.com:19302",
+        #     ]
+        # },
+    ],
 }
 
+
 class ImgContainer:
-    img: np.ndarray = None # raw image
+    img: np.ndarray = None  # raw image
     frame_rate: FrameRate = FrameRate()
 
+
 def video_frame_callback(frame: av.VideoFrame) -> av.VideoFrame:
     img = frame.to_ndarray(format="bgr24")
     with lock:
@@ -66,10 +78,11 @@ def video_frame_callback(frame: av.VideoFrame) -> av.VideoFrame:
         img = img_container.frame_rate.show_fps(img)
     return av.VideoFrame.from_ndarray(img, format="bgr24")
 
+
 img_container = ImgContainer()
 img_container.frame_rate.reset()
 ctx = st.session_state.ctx = webrtc_streamer(
-    key="snapshot", 
+    key="snapshot",
     video_frame_callback=video_frame_callback,
-    rtc_configuration=rtc_configuration
-)
+    rtc_configuration=rtc_configuration,
+)