[RPi] 3D Support builds

May I ask how often you update your "fix-stereoscopic-3d-gbm-upstream" tree, or how intermittent fixes are handled?

Just asking, since your last 3D fix/commit was on October 3rd (excluding yesterday's commit), and in the meantime you have made some fixes? For example, for my mkv 3d file, they don't seem to show up in the tree's history? Or am I missing something?

Thanks very much! (It wasn’t meant as a criticism, but rather as a question asked purely out of interest in how you commit your fixes)

Quote from popcornmix

Builds with cinemaONE's suggestions, plus a bump to latest Piers tree: Pi4 Pi5

Sorry for slow feedback but I have now tried this on the AVR setup. I have the RPI5 there right now. I first checked that I still could trigger the kernel panic and yeah no problem causing it. Short skips seems to be the problem, single press skips a few times and crash.

After updating I can still trigger it, I see the buffering circle but now it's handled. It's buffering circle, video starts playing with no audio and 5-10 seconds later audio returns. So you loose audio for a bit but it do recover

I have not taken the time of trying to trigger the 2D subtitles on the RPI4 on one of the titles you mentioned yet. But it is not forgotten and I will report back.

I was just watching the end of The Martian on my RPi5 and a couple of the text lines at the start the credits where in 3D. So can confirm that it still happens on both the RPi4 and RPi5 using the latest image.

Hello I am new here.

I do apply a Raspberry pi in a 3D viewing device, so not a TV or beamer. Each eye gets half the screen vissible (SBS). With Libreelec supporting the 3D user interface mode, I was already happy. But when playing SBS JPG images or simple SBS MP4 video's, it plays in 2D mode; the SBS content schown in full for the left and right eye. It does not split up accross the whole screen.
So Libreelec switches to switch to 3D mode (acrross the screen) only when the file extention has the propper valeu?
Is it possible to make the Libreelec switsch to SBS 3D mode across the whole screen regardless extentions or EXIF information?

Quote from JdWijs

Is it possible to make the Libreelec switsch to SBS 3D mode across the whole screen regardless extentions or EXIF information?

Welcome! For videos, Kodi treats a file as 3D when its name contains both a "3D" tag and an "SBS" tag, e.g. "clip.3D.SBS.mp4" (HSBS also works), or when the container marks it as 3D. For an untagged file, open the video settings during playback and set "Stereoscopic 3D mode of video" to side-by-side. The tags can also be changed with the stereoscopicregex3d / stereoscopicregexsbs entries in advancedsettings.xml.

Pictures are different: as far as I know, Kodi's picture viewer has no 3D handling, so SBS JPGs always show as one flat image. Converting them to a short SBS video named as above is a workaround.

Hello cinemaOne,

Thanks for your explanation. I did try some of your options on JPG files and add those SBS, 3D or HSBS extentions leading to .JPG but non works. As you said, Libreelec does not support that.
That is realy too bad. There is a 3D photography community eagerly searching for playing devices on single board computers playing their own made SBS images in JPG or Tiff format (and videos), starting with a stereoscopic UI in SBS and turning back to the stereoscopic UI after ending the play session.
Libreelec has already the great bennefit of having the option for a steroscopic UI. It would be great if Libreelec is able to playout 3D countent with a specifit format (SBS) regardless of what file it is. These stereoscopic viewers are only made for that purpose so presenting 2D in that device is useless.
With 3D videos in MP4 it switches to full screen, that is good, but it switches the UI back to 2D again when stopping the video.
The easiest way to do it is simple, have the UI in 3D mode (when enabled) and always switch to full screen play whatever content you have. And turn back to 3D UI mode when exiting the picture view mode or video.
The current focus for Libreelec now (is my first impression, correct me if I am wrong) to present content on TVs and beamers. It would be great if that can be extended. Libreelec does have the presentation modes which are needed but have to be organized for this specific purpose; SBS (VR) presentation possibilities. It would not be user friendly to toggle settings every time when 3D content is played and falls back to default settings.

Quote from JdWijs

With 3D videos in MP4 it switches to full screen, that is good, but it switches the UI back to 2D again when stopping the video.

Thanks for testing. Two settings get closer to what you describe (Settings › Player › Videos, setting level "Advanced"):

• "Disable stereoscopic 3D mode when playback ended": switch it off and the UI stays in 3D after a video ends.
• "Playback mode of stereoscopic 3D videos": set it to "Preferred mode" so Kodi doesn't ask on every start.

3D for pictures doesn't exist in Kodi itself (LibreELEC ships Kodi unchanged here), so the place for that request is the Kodi forum's feature-request section or Kodi's GitHub.

Again, thanks for pointing to this.
It might be a feature request as you suggest. I will give this a try and see how the Kodi comunity responses.
It should not be too difficult I guess.

Another question, can you add customized display resolutions to Libreelec? so non VESA.
I have a display set that is able to accept 3840x1080 pixels, it has the propper EDID data but won't be recognized by Libreelec on a Raspberry Pi 4.