[FFmpeg-devel] EBU R.128 scanner

[Clément Bœsch]

Hi,

Thanks to Marton Balint, the real-time with ffplay now works, so this filter
should be ready for review, as a first version.

Only the fonts are moved to lavu (since the rest of the interface is not really
usable or useful outside the lavc context afaict), and made avpriv to start
with.

The filter has not much changes from the latest version. The notable ones are
the documentation and the higher history grain used for I and LRA computation.