Repository: yt-dlp
Issue: sejm.gov.pl: switched from redcdn livx to blueonline
Labels: site-bug

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm reporting that yt-dlp is broken on a **supported** site
- [X] I've verified that I have **updated yt-dlp to nightly or master** ([update instructions](https://github.com/yt-dlp/yt-dlp#update-channels))
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've checked that all URLs and arguments with special characters are [properly quoted or escaped](https://github.com/yt-dlp/yt-dlp/wiki/FAQ#video-url-contains-an-ampersand--and-im-getting-some-strange-output-1-2839-or-v-is-not-recognized-as-an-internal-or-external-command)
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [ ] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

n/a

### Provide a description that is worded well enough to be understood

sejm.gov.pl has ended a public tender and moved to https://www.blueonline.tv/ for video delivery as a result

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
$ python3 -m yt_dlp https://sejm.gov.pl/Sejm10.nsf/transmisje.xsp\?unid\=42ECFC3F225C65BCC1258AE6002A81CA\# -v
[debug] Command-line config: ['https://sejm.gov.pl/Sejm10.nsf/transmisje.xsp?unid=42ECFC3F225C65BCC1258AE6002A81CA#', '-v']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2024.04.09 from yt-dlp/yt-dlp [ff0779267] (source)
[debug] Lazy loading extractors is disabled
[debug] Git HEAD: 168e72dcd
[debug] Python 3.11.8 (CPython x86_64 64bit) - Linux-6.6.25-0-lts-x86_64-with (OpenSSL 3.2.1 30 Jan 2024)
[debug] exe versions: ffmpeg 6.1.1 (setts), ffprobe 6.1.1
[debug] Optional libraries: Cryptodome-3.20.0, brotli-1.1.0, certifi-2024.02.02, mutagen-1.47.0, requests-2.31.0, secretstorage-3.3.3, sqlite3-3.45.2, urllib3-1.26.18, websockets-12.0
[debug] Proxy map: {}
[debug] Request Handlers: urllib, requests, websockets
[debug] Loaded 1810 extractors
[sejm] Extracting URL: https://sejm.gov.pl/Sejm10.nsf/transmisje.xsp?unid=42ECFC3F225C65BCC1258AE6002A81CA#
[sejm] 42ECFC3F225C65BCC1258AE6002A81CA: Downloading webpage
[sejm] 42ECFC3F225C65BCC1258AE6002A81CA: Downloading JSON metadata
WARNING: [sejm] unable to extract camera list; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
WARNING: [sejm] unable to extract sign language interpreter url; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
[download] Downloading playlist: 9. posiedzenie Sejmu X kadencji
[sejm] Playlist 9. posiedzenie Sejmu X kadencji: Downloading 0 items
[download] Finished downloading playlist: 9. posiedzenie Sejmu X kadencji
```