I have two C++ plugins, A (source) and B (filter). However B uses additional data that only source A can provide. Therefore, in a pipeline, A-B is perfectly fine, while A-C-B (where C is some other filter) should not be possible.
Also I noticed that unavailable filters are gray and cannot be selected in PV.
My questions are:
- How does PV decides what filters can be used?
- How can I reproduce this effect for my source and filter?
Thanks a ton,