How do I stop the auto color transform when playing back DCP content?

When I play back unencrypted DCP's (jpg2000 .mxf files) the codec automatically transforms the color from the native xyz colorspace to a rec.709 color space. I understand that ffmpeg does this by default, but I want to turn this behavior off. Is this possible?
I am running win 7 pro and playing back through Blackmagic Fusion software. Without the k-light pack the software will not play the DCP files, but I don't want the color transform, is there any way to do this?

Cheers,

Scott

I don't think it is currently possible to avoid that conversion. It needs to be changed to a format that is supported by the video renderer, and that is almost always a conventional 8-bit colorspace format.

Thanks for your reply, It doesn't fix my issue but it is good to know. Cheers, Scott