Hi, I am trying to access a camera on my Jetson TX2 Module, I have 4 cameras attached, I am able to access 3 of them by using the below command:-
gst-launch-1.0 -e nvarguscamerasrc sensor-id=1 ! \
"video/x-raw(memory:NVMM),width=1280,height=720,framerate=30/1,format=NV12" ! \
nvv4l2h264enc bitrate=4000000 ! h264parse ! matroskamux ! \
tcpserversink host=192.168.1.22 port=5000
when I execute the below command with sensor-id=3, I get their error:-
ubuntu@tegra-ubuntu:~$ gst-launch-1.0 -e nvarguscamerasrc sensor-id=3 ! "video/x-raw(memory:NVMM),width=1280,height=720,framerate=30/1,format=NV12" ! nvv4l2h264enc bitrate=4000000 ! h264parse ! matroskamux ! tcpserversink host=192.168.1.22 port=5000
Setting pipeline to PAUSED ...
Opening in BLOCKING MODE
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
Error generated. /dvs/git/dirty/git-master_linux/multimedia/nvgstreamer/gst-nvarguscamera/gstnvarguscamerasrc.cpp, execute:744 Invalid camera device specified 3 specified, 2 max index
New clock: GstSystemClock
Redistribute latency...
NvMMLiteOpen : Block : BlockType = 4
===== NVMEDIA: NVENC =====
NvMMLiteBlockCreate : Block : BlockType = 4
Got EOS from element "pipeline0".
Execution ended after 0:00:00.002573199
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
Also, the output of ls /dev/video* is given below:-
ubuntu@tegra-ubuntu:~$ ls /dev/video*
/dev/video0 /dev/video1 /dev/video2 /dev/video3
How do I fix it?
Hello @ankush.sheoran1110
Could you please share the camera sensor device tree for further checking?
Regards!
Eduardo Salazar
Embedded SW Engineer at RidgeRun
Contact us: support@ridgerun.com
Developers wiki: https://developer.ridgerun.com/
Website: www.ridgerun.com
It cold be the incorrect context in tegra-camera-platform{}
Confirm by below command.
nvargus_nvraw --lps
Thanks
Hi @EduardoSalazar96 the below is the camera sensor device tree
ubuntu@tegra-ubuntu:~$ v4l2-ctl --list-devices
vi-output, ov491 9-0024 (platform:15700000.vi:0):
/dev/video0
vi-output, ov2735 10-003d (platform:15700000.vi:2):
/dev/video1
vi-output, ov2735 7-003c (platform:15700000.vi:3):
/dev/video2
vi-output, ov2735 7-003d (platform:15700000.vi:4):
/dev/video3
NVIDIA Tegra Video Input Device (platform:tegra-vi4):
/dev/media0
Hi, @ShaneCCC the below is the output of the command nvargus_nvraw --lps
ubuntu@tegra-ubuntu:~$ nvargus_nvraw --lps
nvargus_nvraw version 1.11.0
Number of supported sensor entries 18
Entry Source Mode Uniquename Resolution FR BitDepth Mode
Index Index Index CSI Dyn Type
0 0 0 e33_centerleft 1920x1080 29 10 10 Bayer
1 0 1 e33_centerleft 1600x 900 29 10 10 Bayer
2 0 2 e33_centerleft 1280x 720 29 10 10 Bayer
3 0 3 e33_centerleft 1920x1080 29 10 10 Bayer
4 0 4 e33_centerleft 1600x 900 29 10 10 Bayer
5 0 5 e33_centerleft 1280x 720 29 10 10 Bayer
6 1 0 e33_centerleft 1920x1080 29 10 10 Bayer
7 1 1 e33_centerleft 1600x 900 29 10 10 Bayer
8 1 2 e33_centerleft 1280x 720 29 10 10 Bayer
9 1 3 e33_centerleft 1920x1080 29 10 10 Bayer
10 1 4 e33_centerleft 1600x 900 29 10 10 Bayer
11 1 5 e33_centerleft 1280x 720 29 10 10 Bayer
12 2 0 e33_centerleft 1920x1080 29 10 10 Bayer
13 2 1 e33_centerleft 1600x 900 29 10 10 Bayer
14 2 2 e33_centerleft 1280x 720 29 10 10 Bayer
15 2 3 e33_centerleft 1920x1080 29 10 10 Bayer
16 2 4 e33_centerleft 1600x 900 29 10 10 Bayer
17 2 5 e33_centerleft 1280x 720 29 10 10 Bayer
Hello @ankush.sheoran1110
Thank you for the information provided. However, that is not the device tree file. The device tree is a file where you describe your hardware structure and data, in the NVIDIA sources have a dtsi extension. Could you please share that file with us? As @ShaneCCC that could be an issue with the tegra-camera-platform and I would like to check it.
Also, you could check information related to the tegra-camera-platform at https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-3276/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/camera_sensor_prog.48.1.html#wwpID0E0JCB0HA
May I know which is the camera sensor that you are using?
Regards!
@EduardoSalazar96 I am using
1x OV491 and 3x OV2735 Camera Sensors and Sorry but I cannot provide you the camera device tree files as they are confidential to me.
You can dump the device tree by below command to verify the context of tegra-camera-platform{}
sudo dtc -I fs -O dts -o extracted_proc.dts /proc/device-tree
Hi @ShaneCCC, do I need to provide you that file? Its Confidential, the BSP is confidential.
Hello @ankush.sheoran1110
Sorry for the late response.
Ok, since that the dtsi file could not be shared, here is a module3subnode example for a third camera sensors config:
module3 {
badge = "<sensor_name>_3_<sensor_name>";
position = "3";
orientation = "3";
drivernode0 {
pcl_id = "v4l2_sensor";
devname = "<sensor_name> <i2c_bus>-00<sensor_address>";
proc-device-tree = "/proc/device-tree/i2c@31e0000/tca9544@72/i2c@2/<sensor_name>@<sensor_address>";
};
};
the above module3 is not for a TX2 board, but it could work for you as a reference.
Regards!
Hi @EduardoSalazar96 Thanks for the reply! But as I’m new to this, can you tell me what is this module 3 and how to apply it?
You need to check the device tree by yourself if your they are confidential.
Thanks