Wed Aug 20 14:49:25 EDT 2014

Functional interface

From the C side, it's easier to let the client do the memory
management, i.e. do things like this:

    zl_v4l_get_format(&v4l, &fourcc, &w, &h);
    zl_v4l_next(&v4l, &video_data);

However, making swig wrappers this does complicate things.

So I guess that's the whole point of libprim, but the impedance match
isn't there yet.