So I have an Apple TV 4K, but I don't use the official client. I use Infuse. The Apple TV 4K does not support DTS passthrough, but Infuse will decode DTS on th

So I have an Apple TV 4K, but I don't use the official client. I use Infuse. The Apple TV 4K does not support DTS passthrough, but Infuse will decode DTS on the device itself and pass it through to the receiver as uncompressed lossless multi-channel LPCM. I.e. the server is not transcoding in any capacity The biggest hurdle for Plex, Jellyfin, etc is the variability of the devices and the nuances around what they do and don't support codec wise. Your experience with GTVWCC does surprise me, though. What should be happening is "Direct stream", where it transcodes the audio and just "repackages" the video. I just tested in Firefox w/ a video that has 5.1 DTS audio. It transcoded the audio but just repackaged the video. It does seem to have done it all at once though, so the CPU was pegged for about 2 minutes while it transcoded the full 2h30m DTS track. Afterwards CPU was idle while still watching.