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CoCreateInstance for Quick Sync Video H.264 Encoder returns E_FAIL

Diederick_H_
Beginner
‎11-06-2015 09:44 AM
530 Views

Dear reader,

I'm trying to encode raw NV12 buffers using Window Media Foundation Transforms. I iterate over the available hardware encoders using MFEnumEx, extract the GUID from the activation object which supports hardware encoding. Then when I try to create the transform object using CoCreateInstance(), the function returns E_FAIL.  What am I doing wrong? I've pasted all my test code here with the steps to reproduce this issue.

I've seen a couple of other posts in this forum with somewhat related issue dating from back to 2013. As I understand Quick Sync is supported through the Windows Media Transform API, or am I wrong?

Best,
d

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