tsocks should work. shouldn't it?

[umrashrf]

$  tsocks youtube-dl -v https://www.youtube.com/watch?v=Pov4qMSfg9w
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-v', 'https://www.youtube.com/watch?v=Pov4qMSfg9w']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.09.15.1
[debug] Python version 2.7.6 - Linux-3.13.0-34-generic-x86_64-with-Ubuntu-14.04-trusty
[debug] Proxy map: {}
[youtube] Setting language
WARNING: unable to set language: <urlopen error [Errno 8] _ssl.c:510: EOF occurred in violation of protocol>
[youtube] Pov4qMSfg9w: Downloading webpage
ERROR: Unable to download webpage: <urlopen error [Errno 8] _ssl.c:510: EOF occurred in violation of protocol>
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 211, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1244, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib/python2.7/urllib2.py", line 404, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 422, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/utils.py", line 645, in https_open
    return self.do_open(HTTPSConnectionV3, req)
  File "/usr/lib/python2.7/urllib2.py", line 1184, in do_open
    raise URLError(err)

See this works.

$  tsocks scrapy shell --nolog http://ipecho.net/plain -c response.body
169.253.437.207

[JavaGarcia]

You can use Delegate

$delegated -P8080 SERVER=http SOCKS=IPSocks:PortSocks
$youtube-dl -v --proxy "http://127.0.0.1:8080" https://www.youtube.com/watch?v=Pov4qMSfg9w

[dstftw]

SOCKS proxy support has been added in youtube-dl 2016.05.10. You can use SOCKS proxy directly, e.g --proxy socks://127.0.0.1:9050.