Repository: youtube-dl
Issue: [kaltura] Support playlists
Labels: request

- [x] I've **verified** and **I assure** that I'm running youtube-dl **2017.03.10**

```
~$ youtube-dl --version
2017.03.10
```

### I have

- [x] At least skimmed through [README](https://github.com/rg3/youtube-dl/blob/master/README.md) and **most notably** [FAQ](https://github.com/rg3/youtube-dl#faq) and [BUGS](https://github.com/rg3/youtube-dl#bugs) sections
- [x] [Searched](https://github.com/rg3/youtube-dl/search?type=Issues) the bugtracker for similar issues including closed ones
    - #5081 and #6137 were fixes in past versions, I think
    - #12041 indicates a non-url format for single Kaltura videos; I tried this with the playlist ID and got an extractor error (also below)

### purpose of issue
- [x] Bug report (encountered problems with youtube-dl)


---

### verbose output

```
~$ youtube-dl -v "https://cdnapisec.kaltura.com/html5/html5lib/v2.41/mwEmbedFrame.php/p/1770401/uiconf_id/34290512?wid=_1770401&iframeembed=true&playerId=kaltura_player_1484154962&flashvars%5BstreamerType%5D=auto&flashvars%5BplaylistAPI.kpl0Id%5D=0_pmra4snw"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://cdnapisec.kaltura.com/html5/html5lib/v2.41/mwEmbedFrame.php/p/1770401/uiconf_id/34290512?wid=_1770401&iframeembed=true&playerId=kaltura_player_1484154962&flashvars%5BstreamerType%5D=auto&flashvars%5BplaylistAPI.kpl0Id%5D=0_pmra4snw']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.03.10
[debug] Python version 2.7.13 - Darwin-14.5.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 3.2, ffprobe 3.2, rtmpdump 2.4
[debug] Proxy map: {}
ERROR: Invalid URL
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 761, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 427, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/kaltura.py", line 248, in _real_extract
    raise ExtractorError('Invalid URL', expected=True)
ExtractorError: Invalid URL
```

Trying the format from #12041 (see above) with parameters taken from URL: 
```
~$ youtube-dl -v kaltura:1770401:0_pmra4snw
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'kaltura:1770401:0_pmra4snw']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.03.10
[debug] Python version 2.7.13 - Darwin-14.5.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 3.2, ffprobe 3.2, rtmpdump 2.4
[debug] Proxy map: {}
[Kaltura] 0_pmra4snw: Downloading video info JSON
ERROR: An extractor error has occurred. (caused by KeyError(u'dataUrl',)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 427, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/kaltura.py", line 266, in _real_extract
    data_url = info['dataUrl']
KeyError: u'dataUrl'
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 761, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 440, in extract
    raise ExtractorError('An extractor error has occurred.', cause=e)
ExtractorError: An extractor error has occurred. (caused by KeyError(u'dataUrl',)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
```



---

I tried archiving a playlist from kaltura but it's not working... also tried the non-URL `kaltura:` format with with the IDs in the URL, but it gave me an extractor error and said to report.

Thanks for any help