Closes #1076
- Implemented according to v1.0 spec @ https://www.webmproject.org/vp9/mp4/ - v0 is no longer supported Change-Id: I189c813d788400beda797eea7da943a83dfa7d79
Also move codecs related classes in mp4 to codecs directory. Change-Id: I83db2bcf9e66b405fcceed78918b762b26cd7fce