@ozok: Thanx for finally adding lossless support.
Two small issues:
1. If I set the encoder to Huffyuv all the video specific settings like resolution and aspect ratio are disabled. If I want to change these settings I have to choose another codec first, change what ever I have to change and then set it to Huffyuv. That's a bug, right?
2. It uses the ffmpeg variant of Huffyuv (FFVH) which can only be decoded by ffmpeg itself. In general, I can use LAV or ffdshow to handle this, but there are a few applications which use internal decoders instead of third party stuff and these might be unable to import this format. Better use the original Huffyuv.