OAK4 stuck at queue.get

tan_oak_tester

I am facing an issue where I am not able to get any frames from the OAK4, even though the pipeline is running

Python Code I am using:

import cv2
import depthai as dai

# Create pipeline
info = dai.DeviceInfo(camera_ip)
device = dai.Device(info)
pipeline = dai.Pipeline(device)
print(device.getConnectedCameras())
socket = device.getConnectedCameras()[0]

cam = pipeline.create(dai.node.Camera).build(socket)
outputQueue = cam.requestOutput((8000,6000),fps=2).createOutputQueue()

pipeline.start()
print(pipeline.isRunning())
full_im = outputQueue.get()
cv2.imwrite('frame.png', full_im.getCvFrame())

I get pipeline.isRunning() == True
but the code is stuck at
full_im = outputQueue.get()

is there a problem with the setup, the camera is connected via ethernet POE port

OskarSonc

Hey tan_oak_tester - did you follow our guide for getting started with OAK4 camera and do you see steady blue light?
Also, I would recommend running some of our examples first and then going from there. You can start with this.
You want to run device in Peripheral mode right?

Thanks,
Oskar

tan_oak_tester

I do see a steady blue light
I was able to use the camera before, I have been facing this issue after reconnecting the camera. The camera is connected to a POE switch which supports upto 60W
depthai library version 3.1.0
I also tried setting logging to TRACE and got the following
[3751727550] [192.168.1.127] [1764011985.967] [host] [trace] RPC: [1,1,2545553886520231446,[]]

[3751727550] [192.168.1.127] [1764011985.994] [host] [trace] RPC: [1,1,2545553886520231446,[]]

[3751727550] [192.168.1.127] [1764011986.015] [host] [trace] RPC: [1,1,5555274385934775642,[]]

[3751727550] [192.168.1.127] [1764011986.035] [host] [trace] RPC: [1,1,12933211581474604311,[]]

[3751727550] [192.168.1.127] [1764011986.055] [host] [trace] RPC: [1,1,17425566508637143278,[]]

[3751727550] [192.168.1.127] [1764011986.074] [host] [trace] RPC: [1,1,4765265531383942835,[0]]

[3751727550] [192.168.1.127] [1764011986.092] [host] [trace] RPC: [1,1,4765265531383942835,[1]]

[3751727550] [192.168.1.127] [1764011986.111] [host] [debug] Schema dump: {"connections":[{"node1Id":0,"node1Output":"0","node1OutputGroup":"dynamicOutputs","node2Id":1,"node2Input":"in","node2InputGroup":""}],"globalProperties":{"calibData":null,"cameraTuningBlobSize":null,"cameraTuningBlobUri":"","eepromId":0,"leonCssFrequencyHz":700000000.0,"leonMssFrequencyHz":700000000.0,"pipelineName":null,"pipelineVersion":null,"sippBufferSize":18432,"sippDmaBufferSize":16384,"xlinkChunkSize":-1},"nodes":[[1,{"alias":"","id":1,"ioInfo":[[["","in"],{"blocking":true,"group":"","id":4,"name":"in","queueSize":3,"type":3,"waitForMessage":false}]],"logLevel":0,"name":"XLinkOut","parentId":-1,"properties":[185,3,136,0,0,128,191,189,7,95,95,120,95,48,95,48,0]}],[0,{"alias":"","id":0,"ioInfo":[[["dynamicOutputs","0"],{"blocking":false,"group":"dynamicOutputs","id":3,"name":"0","queueSize":8,"type":0,"waitForMessage":false}],[["","raw"],{"blocking":false,"group":"","id":2,"name":"raw","queueSize":8,"type":0,"waitForMessage":false}],[["","mockIsp"],{"blocking":true,"group":"","id":1,"name":"mockIsp","queueSize":8,"type":3,"waitForMessage":false}],[["","inputControl"],{"blocking":true,"group":"","id":0,"name":"inputControl","queueSize":3,"type":3,"waitForMessage":false}]],"logLevel":0,"name":"Camera","parentId":-1,"properties":[185,21,185,33,0,3,0,136,0,0,0,0,109,35,185,3,130,204,64,205,76,130,185,16,133,176,130,239,175,48,181,185,5,129,67,83,129,47,116,129,192,215,129,102,180,130,94,208,233,169,185,5,129,76,126,129,102,200,129,68,122,129,193,156,130,207,35,73,192,128,143,128,152,100,0,0,128,206,46,128,218,119,185,3,128,168,128,186,221,185,3,134,92,132,247,159,134,220,156,129,248,130,1,123,107,231,130,250,178,72,79,46,132,131,229,132,151,128,186,128,137,128,206,129,100,15,128,228,128,164,0,186,0,0,255,189,0,255,255,255,255,255,136,0,0,128,191,0,3,134,0,0,160,0,3,134,0,0,160,0,4,4,4,3,134,0,0,160,0,186,1,185,5,185,1,184,0,186,2,129,128,2,129,224,1,185,1,184,0,136,0,0,0,64,190,0,190]}]]}

[3751727550] [192.168.1.127] [1764011986.111] [host] [debug] Asset map dump: {"map":{}}

[3751727550] [192.168.1.127] [1764011986.112] [host] [trace] RPC: [1,1,16527326580805871264,[{"connections":[{"node1Id":0,"node1Output":"0","node1OutputGroup":"dynamicOutputs","node2Id":1,"node2Input":"in","node2InputGroup":""}],"globalProperties":{"calibData":null,"cameraTuningBlobSize":null,"cameraTuningBlobUri":"","eepromId":0,"leonCssFrequencyHz":700000000.0,"leonMssFrequencyHz":700000000.0,"pipelineName":null,"pipelineVersion":null,"sippBufferSize":18432,"sippDmaBufferSize":16384,"xlinkChunkSize":-1},"nodes":[[1,{"alias":"","id":1,"ioInfo":[[["","in"],{"blocking":true,"group":"","id":4,"name":"in","queueSize":3,"type":3,"waitForMessage":false}]],"logLevel":0,"name":"XLinkOut","parentId":-1,"properties":[185,3,136,0,0,128,191,189,7,95,95,120,95,48,95,48,0]}],[0,{"alias":"","id":0,"ioInfo":[[["dynamicOutputs","0"],{"blocking":false,"group":"dynamicOutputs","id":3,"name":"0","queueSize":8,"type":0,"waitForMessage":false}],[["","raw"],{"blocking":false,"group":"","id":2,"name":"raw","queueSize":8,"type":0,"waitForMessage":false}],[["","mockIsp"],{"blocking":true,"group":"","id":1,"name":"mockIsp","queueSize":8,"type":3,"waitForMessage":false}],[["","inputControl"],{"blocking":true,"group":"","id":0,"name":"inputControl","queueSize":3,"type":3,"waitForMessage":false}]],"logLevel":0,"name":"Camera","parentId":-1,"properties":[185,21,185,33,0,3,0,136,0,0,0,0,109,35,185,3,130,204,64,205,76,130,185,16,133,176,130,239,175,48,181,185,5,129,67,83,129,47,116,129,192,215,129,102,180,130,94,208,233,169,185,5,129,76,126,129,102,200,129,68,122,129,193,156,130,207,35,73,192,128,143,128,152,100,0,0,128,206,46,128,218,119,185,3,128,168,128,186,221,185,3,134,92,132,247,159,134,220,156,129,248,130,1,123,107,231,130,250,178,72,79,46,132,131,229,132,151,128,186,128,137,128,206,129,100,15,128,228,128,164,0,186,0,0,255,189,0,255,255,255,255,255,136,0,0,128,191,0,3,134,0,0,160,0,3,134,0,0,160,0,4,4,4,3,134,0,0,160,0,186,1,185,5,185,1,184,0,186,2,129,128,2,129,224,1,185,1,184,0,136,0,0,0,64,190,0,190]}]]}]]

[3751727550] [192.168.1.127] [1764011986.130] [host] [trace] RPC: [1,1,14047900442330284907,[]]

[3751727550] [192.168.1.127] [1764011986.153] [host] [trace] RPC: [1,1,8959630473823391071,[]]

[3751727550] [192.168.1.127] [1764011986.171] [host] [trace] Log vector decoded, size: 1

[3751727550] [192.168.1.127] [1764011986.185] [Camera(0)] [debug] Camera: mock isp enabled false

[3751727550] [192.168.1.127] [1764011986.187] [host] [trace] Log vector decoded, size: 3

[3751727550] [192.168.1.127] [1764011986.198] [Camera(0)] [info] Setting FOV of the camera to 68.437836 degrees

[3751727550] [192.168.1.127] [1764011986.199] [Camera(0)] [debug] Sensor type COLOR selected automatically for camera on socket CAM_A. Officially supported sensor types: [COLOR]

[3751727550] [192.168.1.127] [1764011986.199] [Camera(0)] [info] Camera node on socket 0 is a stereo sensor: false

[3751727550] [192.168.1.127] [1764011986.211] [host] [trace] Log vector decoded, size: 1

[3751727550] [192.168.1.127] [1764011986.224] [Camera(0)] [info] Calibration data for camera on socket 0 is not for the maximum resolution. Using the maximum resolution for undistortion.

[<CameraBoardSocket.CAM_A: 0>, <CameraBoardSocket.CAM_B: 1>, <CameraBoardSocket.CAM_C: 2>]

True

[3751727550] [192.168.1.127] [1764012005.450] [host] [trace] RPC: [1,1,14157570252487094000,[]]

[3751727550] [192.168.1.127] [1764012005.468] [host] [debug] Will wait for gate: false

[3751727550] [192.168.1.127] [1764012005.471] [host] [debug] Log thread exception caught: Couldn't read data from stream: '__log' (X_LINK_ERROR)

[3751727550] [192.168.1.127] [1764012005.471] [host] [debug] Timesync thread exception caught: Couldn't read data from stream: '__timesync' (X_LINK_ERROR)

[3751727550] [192.168.1.127] [1764012005.512] [host] [debug] Device closed, 61

This after the script ran for 5 minutes and I had to Ctrl+C to stop it

without logs also it gets to the print(pipeline.isRunning()) part and prints True, after that is gets stuck

I have also tried with 640x480 resolution and waited for 5 minutes, still the script was stuck

is there anything in the logs that could make the issue clear?
If not, what would be the correct way to diagnose this?

OskarSonc

Hey @tan_oak_tester – the logs look normal to me, so this might not be a camera fault. Is the device registered in Luxonis Hub, and does it have an app set to run on boot? If so, the OAK can’t run two pipelines at once, so try stopping/removing that app and power-cycling the device.

Could you also try connecting with OAK Viewer, to rule out environment problem...