Repository: youtube-dl
Issue: Tele5 support doesn't work anymore.
Labels: DRM

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## Checklist

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Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2021.12.17. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
- Make sure that all provided video/audio/playlist URLs (if any) are alive and playable in a browser.
- Make sure that all URLs and arguments with special characters are properly quoted or escaped as explained in http://yt-dl.org/escape.
- Search the bugtracker for similar issues: http://yt-dl.org/search-issues. DO NOT post duplicates.
- Finally, put x into all relevant boxes (like this [x])
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- [x] I'm reporting a broken site support
- [x] I've verified that I'm running youtube-dl version **2021.12.17**
- [x] I've checked that all provided URLs are alive and playable in a browser
- [x] I've checked that all URLs and arguments with special characters are properly quoted or escaped
- [x] I've searched the bugtracker for similar issues including closed ones


## Verbose log

<!--
Provide the complete verbose output of youtube-dl that clearly demonstrates the problem.
Add the `-v` flag to your command line you run youtube-dl with (`youtube-dl -v <your command line>`), copy the WHOLE output and insert it below. It should look similar to this:
 [debug] System config: []
 [debug] User config: []
 [debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
 [debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
 [debug] youtube-dl version 2021.12.17
 [debug] Python version 2.7.11 - Windows-2003Server-5.2.3790-SP2
 [debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
 [debug] Proxy map: {}
 <more lines>
-->

```
youtube-dl.exe --verbose --ffmpeg-location "D:\Programme\ffmpeg\bin\ffmpeg.exe" -o "El Dorado - Der Tempel der Sonne" -f bestvideo+bestaudio "https://tele5.de/mediathek/el-dorado-der-tempel-der-sonne/"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', '--ffmpeg-location', 'D:\\Programme\\ffmpeg\\bin\\ffmpeg.exe', '-o', 'El Dorado - Der Tempel der Sonne', '-f', 'bestvideo+bestaudio', 'https://tele5.de/mediathek/el-dorado-der-tempel-der-sonne/']
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dl version 2021.12.17
[debug] Python version 3.8.3 (CPython) - Windows-10-10.0.19041-SP0
[debug] exe versions: ffmpeg 2022-04-25-git-f2724d2b69-full_build-www.gyan.dev, ffprobe 2022-04-25-git-f2724d2b69-full_build-www.gyan.dev
[debug] Proxy map: {}
[debug] Using fake IP 53.205.124.102 (DE) as X-Forwarded-For.
[Tele5] el-dorado-der-tempel-der-sonne: Downloading webpage
[Tele5] 4102908: Downloading token
[Tele5] 4102908: Downloading JSON metadata
[Tele5] 4102908: Downloading JSON metadata
[Tele5] 4102908: Downloading MPD manifest
WARNING: [Tele5] Unknown MIME type image/jpeg in DASH manifest
[Tele5] 4102908: Downloading m3u8 information
ERROR: No video formats found; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "c:\users\hjs1\appdata\local\programs\python\python38\lib\site-packages\youtube_dl\YoutubeDL.py", line 816, in wrapper
    return func(self, *args, **kwargs)
  File "c:\users\hjs1\appdata\local\programs\python\python38\lib\site-packages\youtube_dl\YoutubeDL.py", line 837, in __extract_info
    ie_result = ie.extract(url)
  File "c:\users\hjs1\appdata\local\programs\python\python38\lib\site-packages\youtube_dl\extractor\common.py", line 534, in extract
    ie_result = self._real_extract(url)
  File "c:\users\hjs1\appdata\local\programs\python\python38\lib\site-packages\youtube_dl\extractor\tele5.py", line 88, in _real_extract
    return self._get_disco_api_info(url, asset_id, endpoint, realm, country)
  File "c:\users\hjs1\appdata\local\programs\python\python38\lib\site-packages\youtube_dl\extractor\dplay.py", line 244, in _get_disco_api_info
    self._sort_formats(formats)
  File "c:\users\hjs1\appdata\local\programs\python\python38\lib\site-packages\youtube_dl\extractor\common.py", line 1374, in _sort_formats
    raise ExtractorError('No video formats found')
youtube_dl.utils.ExtractorError: No video formats found; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
```


## Description

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Tele5 (https://tele5.de/mediathek/) support doesn't work anymore.
A file that I could download successfully 10 days ago now also shows this error.
AFAIK ytdl handles Tele5 like other sites from the Discovery family.
DRM related problems caused "ERROR: Missing deviceId in context" (and still do), so I guess it's something else...