Interesting. I know e-consystems provided their own kernel modules for the Jetson which help with some of the camera streaming, and they provide a special binary of I think guvcview to view live camera output. That is for Xavier though so I don't know if they have something for just a regular computer.
The other thing to look at is using hardware transcoding in an NVIDIA GPU, a raw 4k feed from a 4k camera is huge, but transcoded to h.264 or better h.265 the footage is much more playable from disk in my experience. It may help with live footage. Here are some notes I made when setting up GPU transcoding.
What is your monitor resolution? If you can't display the full resolution, I've found that using the nvidia encoder hardware to resize each 4k stream to 720p makes transcoding much faster. I've added my video conversion scripts to github so you can see how I've done that.
https://github.com/tlalexander/rover_video_scripts
You can also contact e-consystems, as they seem eager to provide application support. Finally feel free to email me to the email in my profile, or better yet create an account and ask the question on my website http://reboot.love so other people can see our conversation and benefit from what we learn.
EDIT: I JUST saw that you meant one local display and one remote display. Sorry busy day. In that case the other poster mentioning gstreamer is spot on, and I believe econsystems has some gstreamer plug ins at least for some cameras, or maybe nvidia does...
The other thing to look at is using hardware transcoding in an NVIDIA GPU, a raw 4k feed from a 4k camera is huge, but transcoded to h.264 or better h.265 the footage is much more playable from disk in my experience. It may help with live footage. Here are some notes I made when setting up GPU transcoding.
Using xstack filter:
https://trac.ffmpeg.org/wiki/Create%20a%20mosaic%20out%20of%...
Using h265 (required to support the extra resolution of 4x4k) http://ntown.at/knowledgebase/cuda-gpu-accelerated-h264-h265...
https://devblogs.nvidia.com/nvidia-ffmpeg-transcoding-guide/
What is your monitor resolution? If you can't display the full resolution, I've found that using the nvidia encoder hardware to resize each 4k stream to 720p makes transcoding much faster. I've added my video conversion scripts to github so you can see how I've done that. https://github.com/tlalexander/rover_video_scripts
You can also contact e-consystems, as they seem eager to provide application support. Finally feel free to email me to the email in my profile, or better yet create an account and ask the question on my website http://reboot.love so other people can see our conversation and benefit from what we learn.
EDIT: I JUST saw that you meant one local display and one remote display. Sorry busy day. In that case the other poster mentioning gstreamer is spot on, and I believe econsystems has some gstreamer plug ins at least for some cameras, or maybe nvidia does...