[opus] mjr to opus audio conversion - corrupted results

[Mark Harris]

Hi Mateusz,

It looks like the Janus code that writes Ogg Opus will not produce
correct Ogg Opus output when there are packets missing.  You can quote
me or https://tools.ietf.org/html/draft-ietf-codec-oggopus-08#section-4.1
if you wish.  If you have another way to convert these files to Ogg
Opus or a way to write the Opus audio to webm instead then that might
be a workaround.

 - Mark