tree bb3568f9887dd01f43f7de127d6715339958e6a3
parent 055a84d50541aebe193eb492bf2b8e4273ab6a11
author Tom Finegan <tomfinegan@google.com> 1534883188 -0700
committer Tom Finegan <tomfinegan@google.com> 1534885410 -0700

Improve AV1 support.

- Require presence of CodecPrivate in AV1 tracks in mkvmuxer and
  mkvmuxer_sample.
- In mkvmuxer_sample, copy CodecPrivate for Video Tracks when
  present.

Change-Id: Ic8e48f8c8b934e543518da19cf17d71b368c30d3