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 Edit or similar) during attempt to connect to remote graph.
As the goal was to find out details about connection media types between the filters being spied over, the spy received a new feature of logging graph details each time the graph is going to running state:
Filter 7: Name "[1BDADev]", Class {17CCA71B-ECD7-11D0-B908-00A0C9223196}, State 2
Pin 1: Name "MPEG2 Transport", Direction "Input", Peer "[0BDATnr].MPEG2 Transport"
Connection media type:
majortype {E436EB83-524F-11CE-9F53-0020AF0BA770}, subtype {E06D8023-DB46-11CF-B4D1-00805F6CBBEA}, pUnk 0x00000000
bFixedSizeSamples 0, bTemporalCompression 0, lSampleSize 1
formattype {8DEDA6FD-AC5F-4334-8ECF-A4BA8FA7D0F0}, cbFormat 24, pbFormat 0x00350868
[0x0000] BC 00 00 00 38 9A 00 00 00 00 00 00 00 00 00 00
[0x0010] 00 00 00 00 00 00 00 00
Pin 2: Name "MPEG2 Transport", Direction "Output", Peer "Infinite Pin Tee Filter[BDATsIft].Input"
Connection media type:
majortype {E436EB83-524F-11CE-9F53-0020AF0BA770}, subtype {F4AEB342-0329-4FDD-A8FD-4AFF4926C978}, pUnk 0x00000000
bFixedSizeSamples 1, bTemporalCompression 0, lSampleSize 39480
formattype {0F6417D6-C318-11D0-A43F-00A0C9223196}, cbFormat 0, pbFormat 0x00000000
Filter 8: Name "[0BDATnr]", Class {17CCA71B-ECD7-11D0-B908-00A0C9223196}, State 2
Pin 1: Name "Input0", Direction "Input", Peer "Microsoft Network Provider[NwPvd].Antenna Out"
Connection media type:
majortype {71985F41-1CA1-11D3-9CC8-00C04F7971E0}, subtype {E436EB8E-524F-11CE-9F53-0020AF0BA770}, pUnk 0x00000000
bFixedSizeSamples 0, bTemporalCompression 0, lSampleSize 1
formattype {0F6417D6-C318-11D0-A43F-00A0C9223196}, cbFormat 0, pbFormat 0x00000000
Pin 2: Name "MPEG2 Transport", Direction "Output", Peer "[1BDADev].MPEG2 Transport"
Connection media type:
majortype {E436EB83-524F-11CE-9F53-0020AF0BA770}, subtype {E06D8023-DB46-11CF-B4D1-00805F6CBBEA}, pUnk 0x00000000
bFixedSizeSamples 0, bTemporalCompression 0, lSampleSize 1
formattype {8DEDA6FD-AC5F-4334-8ECF-A4BA8FA7D0F0}, cbFormat 24, pbFormat 0x00350868
[0x0000] BC 00 00 00 38 9A 00 00 00 00 00 00 00 00 00 00
[0x0010] 00 00 00 00 00 00 00 00
Partial Visual C++ .NET 2008 source code is available from SVN, release binary included; installation instructions are in another post.