videocudagpudecoding

nVidia GPU Decode and Encode YUV422

I've created an application to decode(for now) mpeg2 vídeos.

Everything runs well when the video has YUV420 ChromaSampling(IMG1), but when in YUV422(IMG2) I just get a bunch of artifacts (IMG3).

I've search for a while and read posts saying that nVidia does not support 422, but this seams odd. Is there any way to go around this?

IMG1

IMG2

IMG3

Solution

  • In case of anyone else searches for this, here it goes:

    I kept digging and I submitted a ticket to nVidia Developer and got this response:

    Yes, it's a known limitation. The 4:2:2 mpeg-2 decode is not supported(Only 4:2:0 mpeg-2 is supported). Sorry for the inconvenience.

    So, basically using cuvid YUV 422 ChromaSampling is not supported.