[Libav-user] How to use hwaccel H264 CUVID decoder from ffmpeg API?

[Sergio Basurco]

I have a nice H264 decoder based on this one:

http://roxlu.com/2014/039/decoding-h264-and-yuv420p-playback

And I would like to use the h264 CUVID decoder instead, and receive the 
frames as Nvidia objects. I know there is some kind of callback that 
allows me to get some kind of CUptr that has the decoded I420 frame in 
GPU memory.

I'd like to feed my OpenGL renderer the data directly, without 
downloading it to RAM. I have some experience with Cuvid, I just don't 
know how to get the Nvidia handle for the decoded frame, or how to setup 
the CUVID decoder from the API.

Thanks!