Error downloading Vevo videos with signature length 81

[Baqan]

YouTube has changed the algorithm again for signature length 81:

C:\yt-dl>youtube-dl.exe --verbose http://www.youtube.com/watch?v=j5-yKhDd64s
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['--verbose', 'http://www.youtube.com/watch?v=j5-yKhD
d64s']
[debug] youtube-dl version 2013.07.25.1
[debug] Python version 2.7.3 - Windows-7-6.1.7600
[debug] Proxy map: {}
[youtube] Setting language
[youtube] j5-yKhDd64s: Downloading video webpage
[youtube] j5-yKhDd64s: Downloading video info webpage
[youtube] j5-yKhDd64s: Extracting video information
[youtube] j5-yKhDd64s: Encrypted signatures detected.
[youtube] encrypted signature length 81 (40.40), itag 46, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 37, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 45, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 22, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 44, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 35, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 43, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 34, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 18, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 5, html5 player vflLC8JvQ
[youtube] encrypted signature length 81 (40.40), itag 36, html5 player vflLC8JvQ

[youtube] encrypted signature length 81 (40.40), itag 17, html5 player vflLC8JvQ

ERROR: unable to download video
Traceback (most recent call last):
File "youtube_dl\YoutubeDL.pyo", line 573, in download
File "youtube_dl\YoutubeDL.pyo", line 327, in extract_info
File "youtube_dl\YoutubeDL.pyo", line 410, in process_ie_result
File "youtube_dl\YoutubeDL.pyo", line 357, in process_ie_result
File "youtube_dl\YoutubeDL.pyo", line 550, in process_info
UnavailableVideoError

[jaimeMF]

Thanks!, it's fixed in the git repo.

[Baqan]

Thanks @patrickslin and @jaimeMF