Question about scripts and grammars

Question

My file has value in one structure that is used to compute the length of the next structure.

The structure with that information is at a fixed location in the file.

So I need to take that value and use to set length of following structure.

Answer 1

In general you can use the name of the element that holds the length in the Length field of the following structure.

Have you tried this?

Comments

I defined the length as (H.FMAX / 4096) + 1 and that worked.