remove yt-dlp, fix captions PO Token issue, fix 429 retry logic

- Remove yt-dlp entirely (modules, routes, settings, dependency)
  Was blocking page loads by running synchronously in gevent
- Fix captions: use Android client caption URLs (no PO Token needed)
  instead of web timedtext URLs that YouTube now blocks
- Fix 429 retry: fail immediately without Tor (same IP = pointless retry)
  Was causing ~27s delays with exponential backoff
- Accept ytdlp_enabled as legacy setting to avoid warning on startup

1 files changed, 0 insertions, 99 deletions

diff --git a/youtube/ytdlp_proxy.py b/youtube/ytdlp_proxy.py
deleted file mode 100644
index 023e278..0000000
--- a/youtube/ytdlp_proxy.py
+++ /dev/null
@@ -1,99 +0,0 @@
-#!/usr/bin/env python3
-"""
-Proxy for serving videos with specific audio using yt-dlp.
-
-This module provides streaming functionality for unified formats
-with specific audio languages.
-"""
-import logging
-from flask import Response, request, stream_with_context
-import urllib.request
-import urllib.error
-from youtube.ytdlp_service import find_best_unified_format
-
-logger = logging.getLogger(__name__)
-
-
-def stream_video_with_audio(video_id: str, audio_language: str = 'en', max_quality: int = 720):
-    """
-    Stream video with specific audio language.
-
-    Args:
-        video_id: YouTube video ID
-        audio_language: Preferred audio language (default: 'en')
-        max_quality: Maximum video height (default: 720)
-
-    Returns:
-        Flask Response with video stream, or 404 if not available
-    """
-    logger.info(f'Stream request: {video_id} | audio={audio_language} | quality={max_quality}p')
-
-    # Find best unified format
-    best_format = find_best_unified_format(video_id, audio_language, max_quality)
-
-    if not best_format:
-        logger.info(f'No suitable unified format found, returning 404 to trigger fallback')
-        return Response('No suitable unified format available', status=404)
-
-    url = best_format.get('url')
-    if not url:
-        logger.error('Format found but no URL available')
-        return Response('Format URL not available', status=500)
-
-    logger.debug(f'Streaming from: {url[:80]}...')
-
-    # Stream the video
-    try:
-        req = urllib.request.Request(url)
-        req.add_header('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36')
-        req.add_header('Accept', '*/*')
-
-        # Add Range header if client requests it
-        if 'Range' in request.headers:
-            req.add_header('Range', request.headers['Range'])
-            logger.debug(f'Range request: {request.headers["Range"]}')
-
-        resp = urllib.request.urlopen(req, timeout=60)
-
-        def generate():
-            """Generator for streaming video chunks."""
-            try:
-                while True:
-                    chunk = resp.read(65536)  # 64KB chunks
-                    if not chunk:
-                        break
-                    yield chunk
-            except Exception as e:
-                logger.error(f'Stream error: {e}')
-                raise
-
-        # Build response headers
-        response_headers = {
-            'Content-Type': resp.headers.get('Content-Type', 'video/mp4'),
-            'Access-Control-Allow-Origin': '*',
-        }
-
-        # Copy important headers
-        for header in ['Content-Length', 'Content-Range', 'Accept-Ranges']:
-            if header in resp.headers:
-                response_headers[header] = resp.headers[header]
-
-        status_code = resp.getcode()
-        logger.info(f'Streaming started: {status_code}')
-
-        return Response(
-            stream_with_context(generate()),
-            status=status_code,
-            headers=response_headers,
-            direct_passthrough=True
-        )
-
-    except urllib.error.HTTPError as e:
-        logger.error(f'HTTP error streaming: {e.code} {e.reason}')
-        return Response(f'Error: {e.code} {e.reason}', status=e.code)
-    except urllib.error.URLError as e:
-        logger.error(f'URL error streaming: {e.reason}')
-        return Response(f'Network error: {e.reason}', status=502)
-    except Exception as e:
-        logger.error(f'Streaming error: {e}', exc_info=True)
-        return Response(f'Error: {e}', status=500)