Info on gr-atsc


I am trying to write my own signal processing blocks for atsc capturing
and processing. gr-atsc present in the latest git versions contain c++
blocks inherited from VrSigProc.h and others which I can’t find at all.
If I need to use already available blocks, do I have to implement them
to using the current framework based on gr_block.h . Can somebody please
advise me on this?