To allow Serviio to detect Dolby Vision files correctly, please update FFMPEG for QNAP NAS and other platforms to v5.0 which is now available for free. I have tested it via a QNAP NAS and it works well.
QNAP Download Link via QNAP Club Store:
Download links for other platforms such as Windows and Linux
It would be great it FFMPEG could be updated whenever a new Serviio update is released.
Thanks very much zip in advance.