
oggenc
========
Supports muxing of SRT and LRC files if compiled with libkate support

vpxenc
========
Automatic 2 pass encoding (using --passes=2) will not work when video is piped
used avconv (since input stream will be closed after the first pass).
Both passes must be done separately:
Pass1: --passes=2 --pass=1 --fpf=stats
Pass2: --passes=2 --pass=2 --fpf=stats


