Half SBS plays but width isn't doubled

Glidos

I just gave Deo VR a try with a Half SBS stereo video and I could see that the two halfs were directed to my eyes correctly and the 3D effect was obvious, but the width wasn't doubled as it should be, so the image is half the width it should be. Initially the eyes were swapped too, but I was aware of that with this video and found the setting to correct it in Deo VR, but I can find nothing to correct the width. Is there a setting I'm missing. This is with a Valve Index, in case that's relevant.

Z8phyr

Glidos can you give a link to this (Half SBS stereo video) video ?

Glidos

Thanks for the reply. I couldn't find a good place to upload the whole thing, but here's the first 5 mins: http://download.glidos.net/Avatar3D-5min.mkv

Tony

Glidos is the original file also .mkv?

mp4 and mkv are very similar, but not 100% the same. You might try repacking the file. This is a pretty fast process. If you want to google it, it's called remuxing, with the letter U.

The top answer here has a lot of great and easy to understand info.
https://superuser.com/questions/472420/handbrake-settings-to-convert-mkv-to-mp4-while-retaining-the-original-quality

MKV has, can have, metadata that doesn't exist in MP4. So the issue is most like there. Simply having one chapter spanning the whole video can cause issues, for example, or rotation/transpose, display ratio. It'll probably not even play in this case.

The video most likely is encoded with the width smushed like that so the decoder used by 3D TVs can decode it.

Glidos

Any luck with it?

Mike-Urilorib

I have the same issue. I have lots of pictures that are SBS vertically stretched, like this one: https://bipedu.files.wordpress.com/2012/10/hsbs.jpeg

The app renders the 3D effect correctly, but the final picture has only half the width (or double the height) as it should have.

It would be nice to have a toggle in DeoVR to double the width of a SBS picture or video, because this format is quite common.

Can you please clarify if there is currently any workaround?

Glidos

This is just weird. DeoVR has so many options, but can't do Half SBS?! It's surely easy enouygh to add. It's a really common format. I just took on an update and thought maybe... but no.

DeoAesthetics

Subtitles support is coming

Glidos

I will give that a try when I get a chance, but it doesn't sound a likely solution because:
1) The movie looks as expected (16:9) when played non-stereoscopically.
2) I had already remuxed it to get rid of a german audio track and not explicitly included any metadata (albeit keeping with mkv and I suppose ffmpeg may have included something I didn't explicitly ask for)
3) I've installed an old version of DEO and the movie workd fine with that.

In any case, it makes sense for a player to have a full/half setting. Most do.

irby

Has there been any further research into this issue? I have a handful of HSBS movies I'd like to watch and all of them have been behaving in this manner since the beginning of the year (they worked fine before an update). For reference I'm using SteamVR with Valve Index.

metichemsi

I remember older versions of the app allowed for us to manually select an aspect ratio, a feature which no longer seems to be around. If they add that back it should fix this problem. Half SBS 3D videos are only being stretched back out to a 16:9 format as they should and as many other video apps do by default, like bigpicture for example, which is what I currently use to watch my half SBS videos. Why on earth DeoVr thought to remove this is beyond me and shows what oversight their team had on the value of using this app to also view standard 3D content. Should be a super easy fix and their menu system has plenty of space to add an "aspect ratio" selection if their app is not already "smart" enough to detect and KNOW what to do with half SBS 3D footage...

bncecil

I have found the same problem with several SBS videos. An option to override the display aspect ratio would solve the problem. The only other solution is to re-encode the video to change the aspect ratio with the possibility of quality loss not to mention the waste of processing time and disk space. Plus it sometimes takes some trial and error to find the best ratio.

Not related but support of multiple audio tracks would be nice. But then sometimes the tracks are encoded with unsupported codecs like DTS and AC3 when ripped from disk.