Is it possible to zoom in when watching a stream from Theta?

Was the metadata injected with this tool?

Or, is there an easier way to inject the metadata?

If people upload to YouTube, I do not think there is any advantage to using higher than 12Mbps bitrate. I believe YouTube is cutting down the bitrate on their servers anyway. You can download the video from YouTube using youtube-dl and then inspect the video file on your local computer. In your experience, does greater than 12Mbps bitrate increase the quality if the video is then viewed on YouTube?