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Once graph become active sync filter start multicast incoming samples. I couldn't find any sample like this in your example filter. In attribute you can specify filter name filter merit and filter category. GetCurrentPosition out pCurrent ; seeking.
While waiting for that to happen, packets for other streams are buffered. Please keep this in mind if you plan to use it in a production environment. Where as The Wrapper app is developed using C.
Media Player Classic - This can be used as an alternative to log coloring, e.