Writing raw, container-less video with CameraBin

[Josh Doe]

I'd like to allow video to not only be encoded through CameraBin, but
also written as raw, uncompressed, container-less data. As CameraBin
uses GstEncodingProfile, I tried creating a profile that had ANY caps,
but that failed. Looking through the source, it seems this isn't
currently possible. Anything I'm missing, or should I modify
gstencodebin.c:_get_muxer to return an identity element when the
format caps are ANY?

-Josh