The qTox Project is not associated with the Tox Project in any way, with the
exception of "qTox" using the Tox Projet's "toxcore" collection of libraries.
In particular, the Tox Projet does not own copyright over the qTox Project's
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We can now get the list of video devices with the dshow ffmpeg device
(so, on Windows). Most of this patch is adapted from libavdevice's dshow
private internal interface, which retrieves useful info but is only
designed to log it to stdout. We reimplement that to get an actual list
of devices names/descriptions, that we can then open with ffmpeg the
refular way.
