Camera Guide¶

Note

To enable camera support when building Yocto images see:

QS8M with Raspberry Pi camera: local.conf section in NXP Yocto BSP.
Basler cameras: Basler Camera in NXP Yocto BSP.

Camera Enablement¶

Module	Camera	Precompiled Image	Yocto Enablement
QS8M-MQ00	RaspberryPi Camera	n.a.	Raspberry Pi Camera
QSXM-MM60	Basler daA2500-60mci	qsxm-mm60-basler in Download Area	Basler Camera
QSXP-ML81	Basler daA3840-30mc	qsxp-ml81-basler in Download Area	Basler Camera

Camera DTB¶

To enable camera support you need to load the appropriate FDT overlay according to the following table.

Module	Camera Supported	FDT overlay
qs8m on qsbase2 or qsbase4	RaspberryPi Camera	qs8m-cam
qsxm-* on qsbase4	RaspberryPi Camera	qs8m-cam
qsxp-ml81 on qsbase4	RaspberryPi Camera	qsxp-cam
qsxm-mm60 on qsbase3	Basler daA2500-60mci	/TBD/
qsxp-ml81 on qsbase3	Basler daA3840-30mc	/TBD/

Stream Camera¶

To stream a camera live video on your weston desktop follow the instructions listed below.

Module

Camera

Stream Options

qs8m, qsxm

RaspberryPi Camera

Start camera stream from serial terminal:

gst-launch-1.0 -v v4l2src ! \
"video/x-bayer,format=rggb,width=640,height=480,framerate=30/1" ! \
bayer2rgb ! videoconvert ! autovideosink sync=false

Capture a single .jpg frame from camera stream.

gst-launch-1.0 -v v4l2src num-buffers=1 ! \
"video/x-bayer,format=rggb,width=640,height=480,framerate=30/1" ! \
bayer2rgb ! videoconvert ! jpegenc ! filesink location=test-cap.jpg

qsxp-ml81

RaspberryPi Camera

Start imx8-isp into background:

/opt/imx8-isp/bin/start_isp.sh &

Start camera stream from serial terminal:

gst-launch-1.0 v4l2src device=/dev/video2 ! waylandsink

qsxm-mm60, qsxp-ml81

Basler daA2500-60mci, Basler daA3840-30mc

Start pylon viewer from serial terminal:

export DISPLAY=:0; pylon

Enable the camera and click on the camera icon to stream a live video.

Live-stream the camera with gstreamer:

gst-launch-1.0 -v v4l2src device=/dev/video2 ! waylandsink

You can also record the camera stream using the VPU:

gst-launch-1.0 v4l2src device=/dev/video2 ! \
"video/x-raw, format=NV12, width=1920, height=1080, framerate=30/1" ! \
vpuenc_h264 ! mpegtsmux name=mux ! filesink location=test_1080.ts