You have to to define a second pin in your MIDI filter that supports
KSDATAFORMAT_SUBTYPE_DIRECTMUSIC. Look at the dmusuart sample in WinDDK.
That sample is not AVStream based but you need to build an identical
filter factory.
Then in your pin's DispatchCreate handler, check
Pin->ConnectionFormat->SubFormat to see if you've been opened as
KSDATAFORMAT_SUBTYPE_MIDI or KSDATAFORMAT_SUBTYPE_DIRECTMUSIC.
Depending on the format, the buffers you send/receive in the stream
pointer have a different format: KSMUSICFORMAT for MIDI and
DMUS_EVENTHEADER for DIRECTMUSIC.
- Stephan
Hi there
Can somebody tell what needs to be done to support MIDI DirectX driver in Avstream driver directly?
I've set the second KSDATARANGE for directX as stated, but still the Pin_SetDeviceState_Midi receives just the MME KSDATARANGE.
Do I need to set some extra registry values or something?
Peace Waldemar
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