[FFmpeg-devel] nvenc/cuda force IDR

Timo Rothenpieler timo at rothenpieler.org
Wed Oct 12 20:55:53 EEST 2016

On 10/12/2016 7:45 PM, Grant Brownewell wrote:
>>> Hello,
>>> I've been experimenting with encoding with a  cuda card, and I noticed that setting the pict_type member of the AVFrame structure to AV_PICTURE_TYPE_I >does not trigger it to encode the next frame as an IDR frame as libx264 does. I looked at the nvidia docs and it appears there is a mechanism for this behavior.
>> Is that behaviour documented anywhere?
> I found documentation on the nvidia site (https://developer.nvidia.com/nvencode), here is the section of the document that I referred to in my previous post...

I'm talking about ffmpeg AVFrames.
I was not aware libx264 even did that, and I don't see any documentation
that it's possible to force an IDR/I frame that way.

It should be trivial to add the same behaviour to nvenc.

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