“ No NVENC capable devices found” with ffmpeg for screen capture and RTP

[ThadeuMelo]

I´m trying to stream my Desktop with RTP using ffmpeg.

libx264 seems to work fine. But I would like to test the performance of a hardware accelerated codec.

ffmpeg -re -f dshow -i video="screen-capture-recorder" -vcodec libx264 -tune zerolatency -preset ultrafast -an -f rtp rtp://192.168.0.1
The NVENC codec works fine in other situations like this

ffmpeg -y -rtbufsize 2000M -f gdigrab -framerate 60 -offset_x 0 -offset_y 0 -video_size 1280x1080 -i desktop -c:v nvenc -preset:v fast -pix_fmt nv12 out.mp4
The Codec also apears in the list of available codecs.

However this command doesn´t work

ffmpeg -re -f dshow -i video="screen-capture-recorder" -vcodec nvenc -preset llhq -an -f rtp rtp://192.168.0.1

My machine is a Windows 10 with GTX 760

[pandy]

First verify correct name for codec

ffmpeg -encoders

and later verify codec capabilities

ffmpeg -h encoder=

Seem your card use GK104 https://en.wikipedia.org/wiki/Nvidia_NVENC#First_generation_.28Kepler.29 - you should use codec like

-c:v nvenc_h264