// Oprogramowanie Roman Ryltsov
This quick update for DirectShow Filter Graph Spy adds tracing for (deprecated) IAMFilterData interface, and also fixes problem with Media Player Classic – Home Cinema, when the player crashes in External Filters windows. Partial Visual C++ .NET 2008 source code is available from SVN, release binary included (Win32, x64); installation instructions are in another post.
DirectShow Filter Graph Spy was updated to add new functionality: spying over another DirectShow object – Filter Mapper. Filter Mapper object is used for filter registration purposes and also internally by DirectShow’s Intelligent Connect. IFilterMapper2 interface traces provide detailed description on steps DirectShow takes in order to connect and/or render filter pins. For example when…
Today’s update for DirectShow Filter Graph Spy introduces 64-bit version (mind the beta state) and a mini-API for an external module to be involved into graph building process. Filter Graph Spy is offering three new interfaces that provide extensibility of the spy: IFilterGraphAddRemoveHook IFilterGraphConnectHook IFilterGraphStateControlHook The interfaces are contained in the type library and can…
Having hard time to connect to remote filter graph on Windows 7 machine, I suspected that some of the filters do not like being connected through marshaling and freeze. Or, actually more likely, it is SDK’s proppage.dll which hosts proxy stub pairs behaves itself in a not quite expected way and freezes remote application (Graph…
From a conversation: Q: I am using Web camera with DirectShow. Camera has only capture pin, so I am looking for the best way to switch resolution on the pin while graph is running. I would like to keep preview with smaller image size and when i would like to capture an image i would…
Unlike video, audio is difficult to troubleshoot in a way that once an issue has been noticed it was dynamic and already in past and it may be difficult to repeat, explain, forward as a screenshot etc. So it needs a visualization in order to check certain specific of the media stream. Here we go…
One of the DirectShow’s most important features is Intelligent Connect, which allows Filter Graph Manager to build graphs out of independent filters trying to connect them together including options to fall back to originally non-preferred alternatives and so on. It is however important that filters are properly registered with the Filter Mapper. For the developers…