Encoder magicyuv :
General capabilities: exp threads
Threading capabilities: frame
Supported pixel formats: gbrp gbrap yuv422p yuv420p yuv444p yuva444p gray
magicyuv AVOptions:
-pred <int> E..V..... Prediction method (from 1 to 3) (default left)
left E..V.....
gradient E..V.....
median E..V.....

example 

ffmpeg -i "C:\test.avi" -strict -2 -c:v magicyuv -pred median -pix_fmt yuv444p -y "R:\Magicyuv_test.avi"

ffmpeg.exe -i "C:\test.avi" -strict -2 -vcodec magicyuv -y "R:\Magicyuv_test.avi"

it seems to support all major 8 bit formats but not 10 bit formats. Still trying to discover the options supported

I occasionally get contacted by a guy from the ffmpeg devs, he was the one who did the initial MagicYUV decoder in ffmpeg, and from his recent questions I could infer he was working on an encoder. He usually asks about the MagicYUV format and stuff, but in general he is not too chatty, so our communication is mostly limited to short clauses :)

From his last email I can say that the MagicYUV encoder in ffmpeg was incomplete (albeit working to a degree) with one crucial part missing, which prevents multithreaded per-frame decoding, which kinda defeats the whole purpose of it. As ffmpeg can encode/decode multiple frames in parallel at a higher level, it can mitigate/workaround this limitation to a degree, but it is suboptimal.

As an additional note, the speed of MagicYUV comes from it's specific implementation in practice, not from the underlying theory. So even though an implementation is (or will be) available in ffmpeg, I'll be really curious about how well (or not well) it is going to perform.

Trying ffmpeg –codecs doesn´t seem to identify a magicyuv encoder .Do you know how the encoder can be  called ( c:v magicyuv ?? ) , resolutions and  options supported.? I was interested to try the encoder but I do lack the minimal information needed.