Camera Guide¶
Camera Enablement¶
Note
To enable camera support for QS8M-MQ00 see Raspi Camera section in NXP Zeus Yocto.
Note
You have two options using Basler daA3840-30mc Camera on QSXP-ML81:
- There is a precompiled qsxp-ml81-full FlashImage in our Download Area with which you can use it out of the box.
- For compiling a custom Image with Basler daA3840-30mc camera with Yocto follow Basler Camera section in NXP Zeus Yocto.
Camera DTB¶
When your Yocto build has finished you will get different dtbs in deploy directory.
The following table gives an overview.
| Module | Camera Supported | .dtb Files |
|---|---|---|
| qs8m-mq00 on qsbase2 | Raspi Camera (Sony IMX219) | imx8mm-qs8m-mq00-qsbase2-dsi83-cam.dtb imx8mm-qs8m-mq00-qsbase2-raspi-display-cam.dtb |
| qsxp-ml81 on qsbase3 | Basler daA3840-30mc | imx8mp-qsxp-ml81-qsbase3-ml-kit.dtb |
Use the specific dtb file when booting Linux.
Note
You can change the baseboard variable in U-Boot to get the specific dtb loaded from eMMC.
EXAMPLE
QS8M U-Boot > setenv baseboard qsbase2-raspi-display-cam
Notice: 'fdt_file' changed from 'imx8mm-qs8m-mq00-qsbase2.dtb' to 'imx8mm-qs8m-mq00-qsbase2-raspi-display-cam.dtb'
Stream Camera¶
To stream a camera live video on your weston desktop run the gstreamer pipeline written below.
| Module | Pipeline |
|---|---|
| qs8m-mq00 | gst-launch-1.0 -v v4l2src ! "video/x-bayer,format=rggb,width=640,height=480,framerate=30/1" ! \
bayer2rgb ! videoconvert ! autovideosink sync=false
|
| qsxp-ml81 | gst-launch-1.0 -v v4l2src device=/dev/video0 ! "video/x-raw,format=YUY2,width=1920,height=1080" ! \
queue ! imxvideoconvert_g2d ! waylandsink
|