Initial commit of video_extractor toolkit

Widevine/DRM research and video download scripts (Apple, CDA, Sky, TVP),
CDM tooling, and helper utilities. Excludes downloads/.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WFUhtZEpkGZJjNCGFS9r4Z

cda_probe.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+"""Debug probe — dumps raw MPD XML after login."""
+import json, os, sys, requests
+from bs4 import BeautifulSoup
+
+URL = 'https://www.cda.pl/video/56706683e/vfilm'
+VIDEO_ID = '56706683e'
+UA = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'
+HEADERS = {'User-Agent': UA, 'Content-Type': 'application/json', 'X-Requested-With': 'XMLHttpRequest'}
+
+username = os.environ.get('CDA_USER')
+password = os.environ.get('CDA_PASS')
+if not username or not password:
+    sys.exit('Set CDA_USER and CDA_PASS env vars first.')
+
+s = requests.Session()
+s.post('https://www.cda.pl/login',
+       data={'username': username, 'password': password},
+       headers={'User-Agent': UA}, allow_redirects=True, timeout=15)
+
+vi = json.loads(BeautifulSoup(
+    s.get(URL, headers=HEADERS, timeout=15).text, 'html.parser'
+).find('div', id=f'mediaplayer{VIDEO_ID}')['player_data'])['video']
+
+mpd_url = vi['manifest']
+print('MPD URL:', mpd_url)
+
+r = s.get(mpd_url, headers={'User-Agent': UA}, timeout=15)
+print('MPD status:', r.status_code)
+print(r.text)