GraphEdit is a DirectShow filter graph tool created by Microsoft, part of the Windows Platform SDK. It is mostly useful to the AviSynth user as a way to select codecs manually for DirectShowSource. It also lets you perform administrative tasks, such as permanently changing filter priority (called "merit" in DirectShow).
- Microsoft Windows Platform SDK
- GraphEdit standalone download from Videohelp.
- GraphStudioNext, an open-source alternative.