spherical video support

[dagsoftware]

Hello. I transcoded spherical videos, bat during transcoding the information about spherical lost.
I found that VLC player support 3D videos following this specification: https://github.com/google/spatial-media (videos without spherical tags) are not played correctly.
Is it possible to use jmkvpropedit to set video as spherical to play it correct way?