ref: 03f6379de5cbf44e8d5cec74e4e3d259309af562
parent: 24a65311b538504923aaee04393fd363c2a63356
author: Sigrid Haflínudóttir <ftrvxmtrx@gmail.com>
date: Mon Sep 21 01:01:04 EDT 2020
ebml: more complicated packet handling; fix opus pre-skip in granule pos