main

main.py

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+import asyncio
+import subprocess
+import websockets
+from fastapi import FastAPI, WebSocket, WebSocketDisconnect
+
+app = FastAPI()
+
+# 管理推拉流的 ffmpeg 子进程
+processes = {}
+
+def start_stream(input_url: str, output_url: str):
+    command = [
+        "ffmpeg",
+        "-i", input_url,
+        "-c:v", "libx264",
+        "-c:a", "aac",
+        "-f", "flv",
+        output_url
+    ]
+    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    processes[output_url] = process
+    return process
+
+def stop_stream(output_url: str):
+    process = processes.pop(output_url, None)
+    if process:
+        process.terminate()
+
+# WebSocket 心跳检测
+@app.websocket("/ws")
+async def websocket_endpoint(websocket: WebSocket):
+    await websocket.accept()
+    try:
+        while True:
+            message = await websocket.receive_text()
+            if message == "ping":
+                await websocket.send_text("pong")
+    except WebSocketDisconnect:
+        print("WebSocket disconnected")
+
+# 启动推流示例
+@app.post("/start-stream")
+def start(input_url: str, output_url: str):
+    process = start_stream(input_url, output_url)
+    return {"message": "Stream started", "pid": process.pid}
+
+# 停止推流示例
+@app.post("/stop-stream")
+def stop(output_url: str):
+    stop_stream(output_url)
+    return {"message": "Stream stopped"}