[FFmpeg-user] UDP NVENC HEVC transcoding

Leonardo Pagotto leonardo.pagotto at gmail.com
Tue Aug 18 21:30:18 EEST 2020


Hi Hydra333
Many thanks for the tip, I'll give it a try.
Cheers!

On Mon, Aug 17, 2020 at 10:54 PM <hydra3333 at gmail.com> wrote:

> > Subject: [FFmpeg-user] UDP NVENC HEVC transcoding
> >
> > Hello!
> >
> > I'm transcoding/resizing some UDP live streams using CUVID and NVENC. It
> works but I got the feeling could be better, this is the my command line:
> >
> > ffmpeg -vsync 0 -hwaccel cuvid -c:v h264_cuvid -resize 1280x720
> -drop_second_field 1 -i udp://
> > 230.8.0.7:10008?buffer_size=3000000?fifo_size=1000000&overrun_nonfatal=1
> > -crf 30 -c:a -c:v hevc_nvenc -profile:v main -pass 2 -rc vbr -maxrate 3M
> -f mpegts udp://239.210.210.7:1234?pkt_size=1316&localaddr=10.10.71.55
> >
> > I'd like to ask for some expert advice on what could be added or
> suppressed to improve it.
> >
> > Thanks!!
> >
> > LP
>
> Aren't there new NVENC options nowadays in the new SDK ?
> Eg presets have changed significantly, such as -preset p7 and -multipass
> fullres
>
> Perhaps see Video SDK here ?
> https://developer.nvidia.com/nvidia-video-codec-sdk
> especially page 12 of
> https://developer.nvidia.com/gtc/2020/video/s21337
>
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