t :# 请为您的变更输入提交说明。以 '#' 开始的行将被忽略，而一个空的提交

demo/video_out_stream.py

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+import os
+
+import cv2
+import gradio as gr
+from gradio_webrtc import WebRTC
+from twilio.rest import Client
+
+account_sid = os.environ.get("TWILIO_ACCOUNT_SID")
+auth_token = os.environ.get("TWILIO_AUTH_TOKEN")
+
+if account_sid and auth_token:
+    client = Client(account_sid, auth_token)
+
+    token = client.tokens.create()
+
+    rtc_configuration = {
+        "iceServers": token.ice_servers,
+        "iceTransportPolicy": "relay",
+    }
+else:
+    rtc_configuration = None
+
+
+def generation():
+    url = "https://download.tsi.telecom-paristech.fr/gpac/dataset/dash/uhd/mux_sources/hevcds_720p30_2M.mp4"
+    cap = cv2.VideoCapture(url)
+    iterating = True
+    while iterating:
+        iterating, frame = cap.read()
+        yield frame
+
+
+with gr.Blocks() as demo:
+    gr.HTML(
+        """
+    <h1 style='text-align: center'>
+    Video Streaming (Powered by WebRTC ⚡️)
+    </h1>
+    """
+    )
+    output_video = WebRTC(
+        label="Video Stream",
+        rtc_configuration=rtc_configuration,
+        mode="receive",
+        modality="video",
+    )
+    button = gr.Button("Start", variant="primary")
+    output_video.stream(
+        fn=generation, inputs=None, outputs=[output_video], trigger=button.click
+    )
+
+
+if __name__ == "__main__":
+    demo.launch()