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products:sbc:edge2:add-ons:edge2-mipi-camera
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Table of Contents
Edge2 MIPI Camera Usage
Linux
Upgrade System
Please follow the documentation to upgrade your system to latest version.
For new kernel(5.10.160)
$ sudo apt istall camera-engine-rkaiq $ sudo reboot
Video Node
You can find the video nodes from the table below.
| Video Node(5.10.66) | Video Node(5.10.160) | |
|---|---|---|
| CAM1 | /dev/video33 | /dev/video42 |
| CAM2 | /dev/video24 | /dev/video33 |
| CAM3 | /dev/video42 | /dev/video51 |
Record Video with Gstreamer
kernel 5.10.66
Record video from CAM1:
gst-launch-1.0 v4l2src device=/dev/video33 io-mode=dmabuf num-buffers=300 ! mpph264enc ! h264parse ! qtmux ! filesink location=/tmp/video33.mp4
Record video from CAM2:
gst-launch-1.0 v4l2src device=/dev/video24 io-mode=dmabuf num-buffers=300 ! mpph264enc ! h264parse ! qtmux ! filesink location=/tmp/video24.mp4
Record video from CAM3:
gst-launch-1.0 v4l2src device=/dev/video42 io-mode=dmabuf num-buffers=300 ! mpph264enc ! h264parse ! qtmux ! filesink location=/tmp/video42.mp4
Other version
Record video from CAM1:
gst-launch-1.0 v4l2src device=/dev/video42 io-mode=dmabuf num-buffers=300 ! mpph264enc ! h264parse ! qtmux ! filesink location=/tmp/video33.mp4
Record video from CAM2:
gst-launch-1.0 v4l2src device=/dev/video33 io-mode=dmabuf num-buffers=300 ! mpph264enc ! h264parse ! qtmux ! filesink location=/tmp/video24.mp4
Record video from CAM3:
gst-launch-1.0 v4l2src device=/dev/video51 io-mode=dmabuf num-buffers=300 ! mpph264enc ! h264parse ! qtmux ! filesink location=/tmp/video42.mp4
Capture Frame with V4L2 Utils
Follow the steps below to install v4l-utils:
sudo apt update sudo apt install v4l-utils
kernel 5.10.66
Capture frame from CAM1:
v4l2-ctl -d /dev/video33 --set-fmt-video=width=3840,height=2160,pixelformat=NV12 --stream-mmap=3 --stream-skip=3 --stream-to=/tmp/data33.yuv --stream-count=1 --stream-poll
Capture frame from CAM2:
v4l2-ctl -d /dev/video24 --set-fmt-video=width=3840,height=2160,pixelformat=NV12 --stream-mmap=3 --stream-skip=3 --stream-to=/tmp/data24.yuv --stream-count=1 --stream-poll
Capture frame from CAM3:
v4l2-ctl -d /dev/video42 --set-fmt-video=width=3840,height=2160,pixelformat=NV12 --stream-mmap=3 --stream-skip=3 --stream-to=/tmp/data42.yuv --stream-count=1 --stream-poll
Other version
Capture frame from CAM1:
v4l2-ctl -d /dev/video42 --set-fmt-video=width=3840,height=2160,pixelformat=NV12 --stream-mmap=3 --stream-skip=3 --stream-to=/tmp/data42.yuv --stream-count=1 --stream-poll
Capture frame from CAM2:
v4l2-ctl -d /dev/video33 --set-fmt-video=width=3840,height=2160,pixelformat=NV12 --stream-mmap=3 --stream-skip=3 --stream-to=/tmp/data33.yuv --stream-count=1 --stream-poll
Capture frame from CAM3:
v4l2-ctl -d /dev/video51 --set-fmt-video=width=3840,height=2160,pixelformat=NV12 --stream-mmap=3 --stream-skip=3 --stream-to=/tmp/data51.yuv --stream-count=1 --stream-poll
It will capture a 3840×2160 NV12 format frame to file /tmp/dataXX.yuv.
Preview the file:
$ ffplay -f rawvideo -pixel_format nv12 -video_size 3840x2160 /tmp/dataXX.yuv
Android
Last modified: 2024/01/10 04:23 by jacobe