Play in 3D with frame packing

[makuc]

Hello,

is it possible to play (from library) 3D Full SBS movies in 3D frame-packed? Based on my research FFMPEG supports it, hence my question. Because I'm in the process of buying a 3D projector (already have 3D TV from way back when they still made them) and now I decided to organize my content library. Already have Jellyfin all setup (with library stored on TrueNAS Core) and I'm in the process of moving my collection to folders visible to Jellyfin (being cautious here, because I don't want mis-identification). Before I always played via a PC, split across multiple disks, hence the need for a proper media library.

Any help greatly appreciated.

[TheDreadPirate]

Jellyfin does support 3D. Linked below to the appropriate documentation.

https://jellyfin.org/docs/general/server...#3d-movies

[makuc]

Thank you for a quick reply. But that documentation only talks about parsing and structuring library. Will it actually properly play that 3D content as a frame-packed 3D movie instead of wasting the actual resolution? FOr instance when playing on 1080p display, since we can't input 4k resolution, it wouldn't result in wasting half the resolution of the Full SBS and practically make it into half-SBS?

Thank you very much.

[TheDreadPirate]

I'm not finding a lot of other posts about actual 3D content watching and Jellyfin. You might have be a trail blazer and give it a try and report back.

[makuc]

Will do. Thank you for the input.

[skribe]

I do not believe frame packed mkvs will work. I'm not even sure there is a device that supports them. Didn't Nvidia even remove support from its drivers? I'm not positive, but I think that was the verdict when I looked into this myself.

[makuc]

@skribe I'm not insinuating frame-packed mkvs, they can be packed just fine in full-SBS, I'm prepared for storage overhead due to double images. The question is what happens while playing said movies. FFMPEG is supposedly able to play it via stereo3d filter, input set as SBSL (or any of the alternatives) and output set as HDMI (HDMI frame pack).

The question is, does Jellyfin support using such playback?

I just got my projector and will be able to begin testing now. Sorry for being inactive while waiting for it. The first thing will be to setup the tags on a test movie and see if it will change anything besides the tags being shown in library.

EDIT: Source:  FFmpeg Filters Documentation

[makuc]

Update: no, the 3D tag in the file name doesn't do anything besides putting a 3D tag between PG rating and IMDB rating number of stars).

Any help in figuring out where to even begin looking into helping to implement the possibility of using stereo3D filter playback would be helpful. Especially if something like this would be possible via a plugin.

Some more context and/or idea behind the implementation I'm looking at: https://forum.videohelp.com/threads/4064...ost2663349

EDIT: Maybe I'll also try this, just to see if it will natively play it properly: https://stereo.jpn.org/eng/stphmkr/frame...0format%21

[lucopoulos]

I believe you can achieve that by using an exernal player that can output to HDMI frame pack (I don't know any), or you can look if another format is supported by your projector, like Full SBS ou MVC ( that would be much much easier).

As you said, it is theorically possible to convert most 3D formats to HDMI frame pack with ffmpeg, but I believe most projectors won't trigger the 3D mode if you send the video file in that format directly, it has to have some special instructions given by the player ? Not sure about that part, as my own projector doesn't do frame pack. So maybe you could just try to make one file for a test, it should be as simple as

Code:

ffmpeg -i 3dsourcefileinfsbs.mkv -vf "stereo3d=in=sbsl:out=hdmi" 3dfileinhdmiframepack.mkv

and play that file on your projector directly to see if it plays in 3D. If that works, then there is hope, maybe you can achieve your goal using Jellyfin MPV shim with an external MPV and a custom command, or something similar.

[brilthor]

I've had success previously with a Raspberry Pi (I think it was V3) and Kodi for MVC (Frame packed) playback. It might be worth looking at the old information on that to see about external players and potentially running a client on that platform