ERROR: unable to download video data: HTTP Error 400: Bad Request

[lgbaldoni]

youtube-dl -v https://www.youtube.com/watch?v=sc03SlMY3vA
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v', u'https://www.youtube.com/watch?v=sc03SlMY3vA']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.03.24
[debug] Python version 2.7.8 - Linux-3.16.7-7-desktop-x86_64-with-SuSE-13.2-x86_64
[debug] exe versions: ffmpeg 2.6.1, ffprobe 2.6.1
[debug] Proxy map: {}
[youtube] sc03SlMY3vA: Downloading webpage
[youtube] sc03SlMY3vA: Extracting video information
[youtube] sc03SlMY3vA: Downloading formats manifest
[youtube] sc03SlMY3vA: Downloading DASH manifest
[debug] Invoking downloader on 'https://manifest.googlevideo.com/api/manifest/webvtt/id/sc03SlMY3vA.2/itag/92/source/yt_live_broadcast/playlist_type/LIVE/gcr/it/pmbypass/yes/ratebypass/yes/cmbypass/yes/live/1/lang/en/sver/3/fexp/900239,900720,901809,902904,907263,916730,934954,9406986,9407103,948124,948703,951511,951703,952612,955100,957201,961404,961406/signature/516D6F0A9A262DF75D41B8036DF218FC3C7361D9.0167894D26CF5171FE9D0AE97E56AEDF375275CD/upn/_Ixu0cIss-Q/key/dg_yt0/ip/95.246.55.64/ipbits/0/expire/1427466972/sparams/ip,ipbits,expire,id,itag,source,playlist_type,gcr,pmbypass,ratebypass,cmbypass,live,lang'
ERROR: unable to download video data: HTTP Error 400: Bad Request
Traceback (most recent call last):
File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1379, in process_info
success = dl(filename, info_dict)
File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1354, in dl
return fd.download(name, info)
File "/usr/bin/youtube-dl/youtube_dl/downloader/common.py", line 341, in download
return self.real_download(filename, info_dict)
File "/usr/bin/youtube-dl/youtube_dl/downloader/http.py", line 64, in real_download
data = self.ydl.urlopen(request)
File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1673, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib64/python2.7/urllib2.py", line 410, in open
response = meth(req, response)
File "/usr/lib64/python2.7/urllib2.py", line 523, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib64/python2.7/urllib2.py", line 448, in error
return self._call_chain(_args)
File "/usr/lib64/python2.7/urllib2.py", line 382, in _call_chain
result = func(_args)
File "/usr/lib64/python2.7/urllib2.py", line 531, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 400: Bad Request

[suranands]

I am not sure if this helps. I got the same issue when I tried with the URL as below. But it looks like the issue is why I got this URL with that "t=18&" part in it. I could not understand it. But if I remove it, it worked perfect.

$ youtube-dl https://www.youtube.com/watch?t=18&v=elojMnjn4kk

[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v', u'https://www.youtube.com/watch?t=18']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.04.09
[debug] Python version 2.7.9 - Linux-3.13.0-27-generic-x86_64-with-debian-jessie-sid
[debug] exe versions: avconv 1.2.6-7, avprobe 1.2.6-7, ffmpeg 1.2.6-7, ffprobe 1.2.6-7, rtmpdump 2.4
[debug] Proxy map: {}
[generic] watch?t=18: Requesting header
[redirect] Following redirect to https://www.youtube.com/supported_browsers?next_url=%2F
[download] Downloading playlist: supported_browsers
[youtube:user] supported_browsers: Downloading video ids from 1 to 51
ERROR: Unable to download webpage: HTTP Error 400: Bad Request (caused by HTTPError()); >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.
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 314, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1673, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/home/anand/anaconda/lib/python2.7/urllib2.py", line 437, in open
response = meth(req, response)
File "/home/anand/anaconda/lib/python2.7/urllib2.py", line 550, in http_response
'http', request, response, code, msg, hdrs)
File "/home/anand/anaconda/lib/python2.7/urllib2.py", line 475, in error
return self._call_chain(_args)
File "/home/anand/anaconda/lib/python2.7/urllib2.py", line 409, in _call_chain
result = func(_args)
File "/home/anand/anaconda/lib/python2.7/urllib2.py", line 558, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

[dstftw]

@Pyas you have to escape & or enclose the whole URL in quotes.

[suranands]

Thanks @dstftw for that. I didn't know this. But when youtube itself did not have it in the original URL, why did I get this modified URL from the same video embedded on a different website? Does it happen because of embedding?