GraphStudio is a free program intended for multimedia developers and DirectShow users. It mimics the look and feel of the GraphEdit tool and further extends its functionality. It is being actively developed and updated weekly. Few of the many added features are categorized favorite filters, shortcuts to insert most frequently used filters, screenshot feature, graph events logging or text-based reports with multiple levels of details.
GraphStudio is a new project I have started to work on. It should be free and available as opensource under the GNU GPL license. The main reasons for this project were lot of cool features missing in GraphEdit tool. And of course, the fact that it's not being developed as fast as one may need.
I would like to keep as much of the original GraphEdit look & feel as possible so the people who were/are using GraphEdit could switch to GraphStudio without any problems and include several new features like:
* Detailed System, Filter, Pin, MediaType information
* Reports
* Registry modification (add/remove types for filters manually)
* Information on registered filters (CLSID, name, file, version, location )
* Detection of broken registry entries
* Easier graph construction
* Support for DVB, DVD, Capture graphs
* Inspection of media type formats including header parsing for existing codecs such as H.264, MPEG-2
* Dumping of media type formats for later analysis
* and many more

The license of this software is Free Trial Software, you can free download and get a free trial.