When NTSC (29.97 interlaced) video is being fed to the VMR9 with a custom allocator/presenter, PresentImage is being called 60 times per second. You expect 30 times per second.

Q. When NTSC (29.97 interlaced) video is being fed to the VMR9 with a custom allocator/presenter, PresentImage is being called 60 times per second.  You expect 30 times per second. A. This is by design depending on the type of deinterlacing that you are using. I worked with the developer that wrote the deinterlacing code…

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