Fix ffmpeg transcoder timestamp crash

server.py

@@ -6,6 +6,7 @@ import os
 import subprocess
 import threading
 import queue
+import time
 from flask import Flask, send_from_directory, jsonify, request, session, Response, stream_with_context
 from flask_socketio import SocketIO, emit
 from dotenv import load_dotenv
@@ -133,7 +134,7 @@ def _feed_transcoder(data: bytes):
     global _last_audio_chunk_ts
     if _ffmpeg_proc is None or _ffmpeg_proc.poll() is not None:
         return
-    _last_audio_chunk_ts = eventlet.greenthread.time.time()
+    _last_audio_chunk_ts = time.time()
     try:
         _ffmpeg_in_q.put_nowait(data)
     except Exception: