chrod/vdealer

video brokering container, based on github.com/umlaeute/v4l2loopback

vdealer

A simple video device and streaming video duplication utility for linux (AARCH64 / NVIDIA Jetson TX2)

vdealer runs a script 'video_startup.sh', which does:

1. uses v4l2loopback to duplicate an existing video device /dev/video# to n other device copies.

   modprobe v4l2loopback video_nr=5,6,7 # duplicates /dev/video1 to /dev/video5, /dev/video6, and /dev/video7

2. uses ffmpeg to stream from /dev/video* to the extra devices created in (1)

   ffmpeg -f v4l2 -i /dev/video1 -f v4l2 /dev/video5 -f v4l2 /dev/video6 # streams output from /dev/video1 to /dev/video5 and 6

3. upon termination of the docker container, cleans up the ffmpeg streams and removes the devices created in (1)

Usage:

Run as a docker container:

docker run --name vdealer -it --rm --privileged --ipc=host --cap-add=ALL -v /dev:/dev -v /lib/modules:/lib/modules aarch64-tx2-vdealer

Because the container is pre-build with the CMD option, it will launch its script 'video_startup.sh' automatically Options: '-it' will run interactive, '-td' willrun in detached mode

Build:

Build the docker container on your AARCH64 system:

docker build -f Dockerfile -t aarch64-tx2-vdealer .

(or just pull the image: docker pull openhorizon/aarch64-tx2-vdealer)

Prerequisites:

OS / Architecture / System: Linux / AARCH64 / NVIDIA Jetson TX2 (as tested) Supporting Kernel Modules: The kernel module v4l2loopback is required*

Caveats and Cautions:

This container is built to run on the NVIDIA Jetson TX2 with a custom kernel (compiled with these instructions), running JetPack3.1.

*Caution: v4l2loopback must be built from umlaeute's source, or you may run into (serious) device problems if kernel software conflicts.

vdealer's Issues

v4l2loopback

Hello, thank you very much for your contribution in this regard. However, I have a question to ask how to install v4l2loopback in the Docker container, as I encountered a conflict between the container and the host kernel during the implementation process.