Adding 3-D metadata ("st3d") to videos for uploading to YouTube
YouTube used to have a simple checkbox when uploading 3-D videos. It is gone:
https://support.google.com/youtube/answer/7278886?hl=en
The options given in their ffmpeg example do not work (error message).
I am trying to find a tool or method to insert metadata in to a .mov or other video file. I would have thought Compressor could do that (it has a checkbox for 360 metadata) but I have had no luck finding it, if so.
Thoughts?