[ffmpeg] Also look into stderr for extracting the version
authorJaime Marquínez Ferrándiz <jaime.marquinez.ferrandiz@gmail.com>
Sun, 26 Oct 2014 17:11:31 +0000 (18:11 +0100)
committerJaime Marquínez Ferrándiz <jaime.marquinez.ferrandiz@gmail.com>
Sun, 26 Oct 2014 17:11:31 +0000 (18:11 +0100)
commit5f82b129e085eb122b6129df36e45925f5b4546a
treefd2cada4a0f655f477fe3fe8b9a53b1ab1fba5a6
parent64269e4d0117a04096696532bccd90ee6b176f25
[ffmpeg] Also look into stderr for extracting the version

At least with avconv 11, it will print 'avconv version 11, ..' to stderr, not stdout.
youtube_dl/postprocessor/ffmpeg.py