[FFmpeg-devel] [Patch] nvenc : Add P016 support

Philip Langdale philipl at overt.org
Wed Jul 26 12:14:04 EEST 2017

On 2017-07-25 08:33, Yogender Gupta wrote:
>>> I can push, but to answer Timo's question: I did not add P016 to 
>>> nvenc because it is technically not correct to pass 12bit content 
>>> through a 10bit surface - that will lead to truncation, rather than 
>>> dithering. If you are telling us that nvenc supports 12bit >> input 
>>> and will correctly dither, then great. Otherwise, it's more correct 
>>> to not support and force dithering to happen through swscale. You 
>>> could also write cuda accelerated dithering.
> I have dropped the NVENC patch for now (we will build a P016 to P010
> CUDA dithering filter). Attached the other patches, also taking into
> account some code formatting comments.
> Thanks,
> Yogender

Hi Yogender,

That's great.

Your patches look fine, although they need micro version bumps in 
libavfilter and libavutil.
I've added those to my local copy of the patches, but I know realise I 
can't push either,
as I'm travelling for another week. I'll push them when I get back.



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