Update main.py

main.py

@@ -9,11 +9,11 @@ def get_m4a_url(video_url: str) -> str:
     Extracts the best m4a audio stream URL from a YouTube video using yt_dlp with cookies.
     """
     ydl_opts = {
-        'format': 'bestaudio[ext=m4a]/best',  # Prefer m4a audio
-        'quiet': True,                        # Suppress console output
-        'skip_download': True,                # Don't download, just extract info
-        'cookies': 'cookies.txt',             # Use manually exported cookies
-        'user_agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',  # Mimic a browser
+    'format': 'bestaudio[ext=m4a]/best',
+    'quiet': True,
+    'skip_download': True,
+    'cookies_from_browser': 'chrome',  # automatically extract cookies from Chrome
+    'user_agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)...',
     }
     
     try: