GraphEditPlus

If you develop applications using DirectShow, GraphEditPlus will make your life much easier. This is GraphEdit done right. And yes, it can even write source code for you!

Main features:

Edit several graphs at one time.
See all filters registered in the system, register new filters.
See in what file on hard disk your filter is.
See all information about its file: creation and modification times, version, vendor, size, etc.
See and copy to clipboard filter's CLSID. See and change filter's merit. Unregister filter, register new ones.
See what interfaces filter supports (scan for 280 known DirectShow interfaces). For each pin you can see list of its desired mediatypes, see list of filters that may connect to this pin.

For each mediatype you can see full information: not only major and sub types, but also all the fields of all popular format blocks (like VideoInfo, VideoInfo2, WaveFormatEx, etc.) including all fields of nested structures like BitmapInfoHeader etc.
See what samples go through your graph. Control your graph: run, pause, stop, seek.
See current position and duration. Once you've built your graph GraphEditPlus can generate source code in C of a simple application that builds this graph and runs it.

It will include all necessary filters definitions and actions of building the graph. DirectShow development was never so easy before!