Monitor is a pass-through filter for DirectShow that logs all the timestamps and media types of the data passing through it. It’s a very useful debugging tool, that I originally published for Windows Mobile here but I’m now maintaining it only for Win32.
It supports IFileSinkFilter for the log filename, so when you insert it into a graph, GraphEdt will ask you for the name of the file. This is used to write log output.
The fixes in this release include improved support for Unicode, multithread-safe log output, and a fix to allow multiple independent monitor filters in the same graph.