Fix YouTube SSL block: ios player client + updated yt-dlp

app.py

@@ -246,6 +246,16 @@ async def transcribe_url(url: str = Form(...)):
             "progress_hooks": [Hook()],
             "quiet": True,
             "no_warnings": True,
+            # Bypass YouTube datacenter IP blocks
+            "extractor_args": {"youtube": {"player_client": ["ios", "web"]}},
+            "http_headers": {
+                "User-Agent": (
+                    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
+                    "AppleWebKit/537.36 (KHTML, like Gecko) "
+                    "Chrome/124.0.0.0 Safari/537.36"
+                ),
+            },
+            "source_address": "0.0.0.0",  # force IPv4
         }
 
         try:

requirements.txt

@@ -1,5 +1,5 @@
 fastapi
 uvicorn[standard]
 faster-whisper
-yt-dlp
+yt-dlp>=2024.12.13
 python-multipart