Hi all. I am working on a streaming windows store app the uses a PMP and I need to apply protection to the output. I have tried several protection schema to determine if my implementation is correct but the results have not been what I
expected.
For example for my DVI connection (MFCONNECTOR_DVI) it states that it supports
MFPROTECTION_DISABLE. If I enable it I get a decode error and playback is rejected. According to the documentation that I have what should have happened is the video rectangle should
have been blanked while the rest of the screen is left unaffected. If I look at the logs I can see that GetSchemaType() of my IMFOutputSchema implementation object returns the guid MFPROTECTION_DISABLE
and GetConfigurationData() returns the non-zero value that states that it should be enabled. However I don't see a call to GetOriginatorID().
I have also tried MFPROTECTION_CONSTRICTVIDEO. In this case GetSchemaType() also returns the appropriate guid and GetConfigurationData() returns a nonzero value stating that it should
be enabled. For the max number of pixels allowed I set that as a double word attribute MFPROTECTIONATTRIBUTE_CONSTRICTVIDEO_IMAGESIZE set to 50 which equates to 50,000 pixels. This is all per the documentation I have. I was expecting the
video to be degraded. I tried less and more but didn't see an affect. In this case I also don't see the call to GetOrigonatorID().
Have any of you used these protections systems? What were your observations? Difficulties?
In the end I have to have HDCP and CGMSA but I need test equipment to verify that its actually working.
Thanks
