But my external hard drive of movies is getting full and, with a newer, faster computer, I've started doing screen captures in x.265.
When I set it to capture in x.265, it automatically assigns an .mkv container to the video. (I found a workaround in Advance settings, so I've solved my problem for now. But will ask this question anyway.)
The x.265 file plays fine on PD15, and Intelligent SVRT offers a Profile. But PD15 won't use SVRT for .mkv. It re-encodes. (Albeit using Hardware Acceleration. But that's 20 minutes for a 1.5 hour Noir movie.)
Will PD use SVRT on .mkv containers?
(In the meantime, I set my screen capture program to use FFmpeg and nvenc hevc to encode. It essentially encodes using x.265 and puts it in an mp4 container. PD15 is okay with that, and zips through the video using SVRT.)