One of the users had recently complained about encoding problems with HEVC 
encoding with WP (Weighted Prediction). This is a driver issue that has been 
identified, and shows up when using HEVC + WP + (PictureTimingSEI messages and 
or buffering period SEI messages).

Recently the PictureTiming SEI message was turned on by default in the NVENC 
code in ffmpeg and the issue shows up when doing HEVC encodes with WP turned on.

We have a driver fix that will come up in a later release, and users would be 
suggested to not enable weighted prediction with HEVC till a fixed driver 
version is available.

Regards,
Yogender

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