I've installed Plex Media Server in my Raspberry Pi 3. It works perfect but it doesn't have enough CPU power to transcode (when it tries the video freezes every two or three seconds). One of my Plex clients is an LG TV and I find Plex Server transcoding files very often when I try to watch it from the TV.
I took one file as an example. It is a .mov file, the video is 1080p—HEVC and the audio AAC 5.1. I copied the file in a pen drive and the TV played it without any problems. I've also played it from Plex's DLNA server and I could watch it perfectly. However when I try to watch it through the Plex App in the TV the server shows:
Trasnscoding
Video Transcoding HEVC to H264
Audio Direct stream
In the TV I've enabled the options Direct Play and Direct Stream and I've all qualities set to Original.
Am I missing some reason that can make Plex transcode the file or is there something wrong?