Just like H.264 is a video
format,
not a software, VC-1 also is a video
format,
not a software. A multitude of
different hardware or software encoders exist for H.264 as well as for VC-1.
x264 is a
H.264 software encoder. Consequently it does
not encode VC-1. I'm not aware of any OpenSource VC-1 encoders, but if you look for a freeware VC-1 encoder, try Microsoft's Expression Encoder.
http://www.microsoft.com/en-us/downl....aspx?id=18974