@MarcAntoine-Arnaud
wget is not used into AppVeyor currently, only on Travis, but it seems we have the same problem on both platform with curl, which does not complete the archives download.
wget seems to resolve the problem for Travis, but we have find another solution for AppVeyor... (so I switch this PR in WIP) :)

Thanks for the review, by the way. ;)

Okay, it seems AppVeyor was already broken before your PR.
I think we need to fix AppVeyor build before merge it.

OK, actually for AppVeyor, the problem does not seems to come from curl but from the URL to FFmpeg, that return a 404 Not Found status. Indeed, there is no more ffmpeg-2.4.5-win32-dev.7z into the repository. Do you have any idea of where we could find a new repository?

On Travis we could keep curl using a -L option, and piping the response into a file :

$ curl -OL http://downloads.xiph.org/releases/vorbis/libvorbis-1.3.4.tar.gz > libvorbis-1.3.4.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   460  100   460    0     0   1429      0 --:--:-- --:--:-- --:--:--  1428
100   442  100   442    0     0     42      0  0:00:10  0:00:10 --:--:--   891
100 1593k  100 1593k    0     0   133k      0  0:00:11  0:00:11 --:--:-- 1962k

@MarcAntoine-Arnaud Would it be better according to you ?

This PR is okay for me, I think we can merge instead of AppVeyor build still broken.

To fix AppVeyor, it means we need to support FFMpeg > 3.0 (#252)

OK then! I cannot find any another repository with FFmpeg Windows builds... I create a new issue for this: #302
@cchampet OK for you?

Coverage remained the same at 78.185% when pulling f5e3fe0 on valnoel:fix_ci_getDependencies into 858cc2f on avTranscoder:develop.

Thank you gentlemen ;)
Indeed, to fix AppVeyor, we will have to to support FFMpeg > 3.0...