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[SOLVED] Windows Media Foundation, IMFTransform::SetOutputType returns unclear E_FAIL

Diederick_H_
Beginner
‎03-21-2017 01:50 PM
680 Views

Dear reader,

I wanted to point out that when setting a framerate that is not supported (or maybe even invalid) using MFSetAttributeRatio(input_media_type, MF_MT_FRAME_RATE, fps_num, fps_den) calling IMFTransform::SetOutputType() returns an E_FAIL error, even when the MFSetAttributeRatio() returns true. 

I would expect that the intel MFT would return an error when calling MFSetAttributeRatio for MF_MT_FRAME_RATE when using invalid / unsupported values; figuring out what was casing the E_FAIL returned by SetOutputType took quite some time and was found with a lucky shot.

Kind regards,

Diederick 

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