UI Setting to always support Widescreen cinematic format for home theater projectors

[Volts]

Are you using Plex HTPC? It supports changing zoom during playback, and HTPC gives more display output options.

They’ve mentioned that the UI will be kept at 16:9 in HTPC too:

Plex HTPC feedback

Thanks for all your feedback on our HTPC preview! We’ll keep this post updated as a sort of FAQ for our roadmap. It’s marked as a solution so that it sticks to the thread’s top. In progress: Proper HDR support, of course. Update 1.3.0 Loss of full screen state when changing monitor or switching inputs on an AVR. Update 1.2.0 Investigate missing back button handling for some users. Add a global aspect ratio setting, as was in PMP, primarily as an assist for 21:9 users. Investigate why th…

It’s worth searching for “htpc 21:9” in the forums. There are some other clever zoom possibilities.

Using Plex HTPC on 21:9 aspect ratio screen

Edit : In fact the zoom mode set the panscan function that crop the video to fill the screen while retaining aspect ratio. With a 2.35 aspect ratio film it will nearly do the trick on a 21:9 screen. But if you want a more precise control or you have a film with an other aspect ratio that is not near 21:9 here is the solution : use a custom inputmap for the keyboard : copy the file: C:\Users\<your_user>\AppData\Local\Plex HTPC\inputmaps\defaults\keyboard.json to C:\Users\<your_user>\AppDat…

Video Zoom (Crop) in Plex Desktop app

Figured it out. For anyone having the same issue as me, check this example script out. Keybinds only work through the mp.add_forced_key_binding() function, non-forced does nothing. The keybinds are Shift++, Shift+- and Shift+0 to add, subtract and reset the zoom level respectively. Don’t forget to change the extension to .lua, and then you can just put it in %LOCALAPPDATA%\Plex\scripts\ for it to work. zoom-keybinds.txt (798 Bytes) [admin edit: file attachments are automatically purged after…

It’s a bit hilarious - 21:9 content (possibly matted into 16:9 video files) played on 16:9 projection equipment towards a 21:9 screen.