lossless1024
how to play StripChat VR
I played the saved file with SKYBOX VR PLAYER, but there is a difference in the display when streaming on the web. Is there any other way to play it?
I'm using Meta Quest 2. Even if you connect it to the desktop and play the video with VLC Player, it will only display a split 2D screen. I would like to know in detail how to display in 3D.
Do you only experience this when you play the StripChat VR Videos produced by Streamonitor or also with other videos?
I think it's possible that SBS 3D Metadata is missing. So the player/device interpretes this as a two stream 2D video without doing 3D magic.
Could you try this on a video and try to play the MKV:
ffmpeg -i in.mp4 -map 0 -c copy -metadata:s:v stereo_mode=left_right out.mkv
To get a MP$ from that MKV:
ffmpeg -i out.mkv -map 0 -c copy -strict -1 out.mp4
I have no 3D Device so I can't test stuff. It's possible that the WSS output gives back the two videos and some step is doen between the WSS output and the video output on JavaScript Level. The ffmpeg command just copies stuff into a mp4 file. Because of the fact that the WSS tempfile could also be one this can also be a NOOP.
So StreaMonitor does something like this:
ffmpeg -i tempfile -ignore_editlist 1 -codec copy output.mp4
That's nearly writing TMP-File to MP4 container file. Eventually it results in a file with two video streams without the needed metadata.
Also check this: https://superuser.com/questions/1337508/how-to-use-ffmpeg-to-add-3d-metadata-to-a-sbs-full-frame-video-without-reencodin
The above commands are mentioned and discussed there also. But metadata seems to be needed for the player to recognize that it is a 3D video and the used 3D technology.
Best Regards
Thank you for your detailed explanation. I think the VR video itself is probably output correctly, but I'm worried that there is no player that can bend the square Side by Side video up and down and play it back.
How shold a browser be able to do this when no player can do this with the same data?
The only reason would be that information is lost which is needed.
https://vrplayer.io/ On this site, if you play it with [Screen] > [SBS], it will be displayed well, so isn't it possible to specify the playback method from the browser side? It would be perfect if I could bend it on this site and move it back and forth...
Did you test the conversion I posted?
If this player can do this, another should also be able. Keep in mind that you specify explicitly how the player should act on the video file. Depending on the player it might orient on metadata. A 3D video is just a video with two video streams. The most other stuff is calculation and inform the device correctly (the §D glasses)
The fish view looks similar, but it's a little different from what you see on the web.