Errors running video encode in Docker container

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

I am attempting to get an application running in a Docker container on a Jetson TX2 running jetpack 3.3. I am doing some video processing using a camera as input and am getting errors creating an encoder. I tried running the video_encode sample and get the same errors.

video_encode video.h264 640 480 H264 temp.vid
Failed to query video capabilities: Inappropriate ioctl for device
libv4l2: error getting capabilities: Inappropriate ioctl for device
[ERROR] (NvV4l2Element.cpp:63) <enc0> Could not open device '/dev/nvhost-msenc': Inappropriate ioctl for device
[ERROR] (NvV4l2ElementPlane.cpp:496) <enc0> Output Plane:Error in VIDIOC_REQBUFS at output plane: Bad file descriptor
[ERROR] (NvV4l2ElementPlane.cpp:496) <enc0> Capture Plane:Error in VIDIOC_REQBUFS at output plane: Bad file descriptor
Could not create encoder
Segmentation fault (core dumped)

I am mapping the /dev/nvhost-msenc device into the container, so I am not quite sure the problem is. This runs fine on my host device, just not in the container.

2

hello peterqissel,

had you already confirm camera functionality?
could you please refer to Camera Software Development Solution, please have a try to access camera sensor via v4l2-ctl or gst-launch.
thanks

3

Turns out I didn’t have the usb device mapped properly.
I previously only had ‘–device=/dev/bus/usb --device=/dev/bus/usb/001/002’ and I added ‘–device=/dev/bus/usb/001/001 --device=/dev/bus/usb/002/001’ which got it working. I don’t quite understand why this would affect the encoder, but it works now.