We don't really have much documentation, but I guess it should be noted in the feature list.
I have looked into it but didn't immediately figure it out. I don't know when I get a chance to look into it again. It's bit more work as I need to set up a build environment on Windows to debug it. I do the development on Linux, and most things just work on Windows because most of the code is the same. However there are a few minor gstreamer related issues on Windows that probably would be best to look into at the same time. Setting up a small program to reproduce and debug this instead of compiling the entire program on Windows would probably be easier.
P