GG tried with this patch with truehd and it still failed.  He will check into GIT dca.qt but not mlp or truehd.  Since the patch as quoted above was only created in July/August, maybe at some future date it will be an automatic part of an ffmpeg release and be fixed to work.  Even if it worked, he does not want to take the chance of carrying a patch that may or may not be later incorporated into a standard release.

QUESTION for you -- why "threads=2" in nagicyuv.qt and utvideo.qt ? GG is OK with this, but was wondering if that makes it run better on your computer ? And is there a limit of only 2 ?   Just curious...