Server Version#: 1.24.0.4930 Ubuntu Linux 16.04 LTS Player Version#: Roku Ultra 4640X - SW v10.0.0 Build 4209 - Plex App v6.8 build 8, wired ethernet (not WiFi, local gigabit wired network) [100Mb, 100BaseT is what Roku Ultra supports] With Subtitles off, 4K content plays perfectly on 10-bit HDR…

From the looks of it you’ll need to either convert your image-based DVD subtitles to a format supported by the Roku or get a different set of text-based subtitles. If the player cannot deal with the subtitles, your server will attempt to burn the subtitle into your video – that means it’s re-encodi…

Interesting, you obviously know far more about how Plex works than I do, and this took me down a rabbit hole. Thanks for explaining. The subtitles available are part of the MKV: [image] I looked up HDMV PGS and what I found PGS Subtitle Won’t Appear Fix – How to Convert PGS to SRT appears to ma…

[image] CraigA57: request that Plex find a way (new feature) to use existing HDMV PGS Plex can already do that on a number of platforms. The current-generation player on the Apple TV / iOS will display PGS/Vobsub subtitles just fine without the need to transcode them. I believe the same is …

[image] tom80H: Plex can already do that on a number of platforms. The current-generation player on the Apple TV / iOS will display PGS/Vobsub subtitles just fine without the need to transcode them. Good to know. However when I purchased my Plex Pass years ago Plex was saying the Roku platf…

I downloaded and tried Subtitle Edit from the link I provided earlier. It works, is free, but requires enough cleanup from the OCR process that unless you enjoy this type of activity and have a lot of free time, it’s not really a solution. With this in mind, at least for me, the best solution woul…

download SRT subtitles from https://www.opensubtitles.org and remux the movie file. Remove or disable image based sub.

[image] OttoKerner: You might find this useful… Good writeup. I must have picked an unusually difficult PGS source. Seems all the digitized letters are different, like there are 7+ OCR versions of ‘a’ (probably different by one or more pixels). And a font was selected where “Ii” looks the …

[image] CraigA57: Seems all the digitized letters are different, like there are 7+ OCR versions of ‘a’ (probably different by one or more pixels) If you use the settings in the article, a one pixel difference should not lead to drastically different results. While the OCR module can use the o…

My plex media sever is a late 2015 iMac running a skylake core i5, and when playing 4K videos with PGS subtitles on any Roku, it will transcode the video to 1080p and the video stutters. I can play 4K videos with PGS subtitles without my sever transcoding them on my appleTV or on my android stre…

Subtitles on 4K content forces 1080p transcoding

Plex Media Server

OttoKerner August 25, 2021, 3:10pm 8

You might find this useful: Introduction: convert image-based subtitles to SRT with Subtitle Edit

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Subtitles on 4K content forces 1080p transcoding

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