is there any plan to implement the ability to work with such? I get 'unable to find demuxer'. this is with the latest nightly. I've included an info file. apparently the file has two video streams, would this require your implementing something similar to audio where you can select which video files are included? the 2160p video is my only real concern. not the various audio or other.
It all depends of your used video. If you would provide a small sample of your used 2160p hevc m2ts video.
Avidemux can handle 2160p HEVC, see: