Gscam / imx219 / ros / gst_uri_is_valid (uri) == false

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

I have a Jetson Nano B01 with an IMX219 camera attached to port 0.

When i launch the following from the command line, the video displays fine, no crashes or other problems.

gst-launch-1.0 nvarguscamerasrc sensor_id=0 ! ‘video/x-raw(memory:NVMM),width=3280, height=2464, framerate=21/1, format=NV12’ ! nvvidconv flip-method=2 ! ‘video/x-raw,width=960, height=720’ ! nvvidconv ! nvegltransform ! nveglglessink -e

When i launch a gscam ros node with the following (default) config:

GSCAM_CONFIG"nvcamerasrc sensor-id=0 ! video/x-raw(memory:NVMM),
width=(int)1920, height=(int)1080, format=(string)I420, framerate=(fraction)30/1 !
nvvidconv flip-method=2 ! video/x-raw, format=(string)BGRx ! videoconvert ! video/x-raw, format=(string)BGR"

gstreamer just outputs:

(gscam:20536): GStreamer-CRITICAL **: 20:58:12.150: gst_element_make_from_uri: assertion ‘gst_uri_is_valid (uri)’ failed

I already tried debug level 4 for gstreamer, the node does not terminate with above error but stops on “waiting for first frame”. If i try the gscam node with a lowly usb camera, everything works.

What i’m doing wrong?

3

Hi,
Please replace nvcamerasrc with nvarguscamerasrc. The nvcamerasrc plugin is deprecated and removed in r32 releases.

4

Hi Dane,

did that, but same exact error. Also tried changing format to NV12. Any more ideas?

Thanks! :)

5

Hi,
Please try RGB instead of BGR. There is discussion in

7

This worked:

nvarguscamerasrc sensor-id=$(arg sensor_id) ! video/x-raw(memory:NVMM), width=(int)$(arg width), height=(int)$(arg height), format=(string)NV12, framerate=(fraction)$(arg fps)/1 ! nvvidconv flip-method=2 ! video/x-raw, format=(string)BGRx ! videoconvert

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