Video Window Does not render

erik

Thanks Erik.

erik

Hi Erik,

One last thing I decided to try before the calibration was to set this up on my MacBook Pro running Ventura 13.3.1 (a). So when I ran the depthai_demo.py script, the RGB camera still showed no video, just like the Raspberry PI, but I feel like I got more output that may help determine what is going on with the RGB camera. I am trying to rule out of this is a physical or configuration issue with the OAK-D Lite. See below:

(base) Brians-MacBook-Pro:depthai brianhouse$ python3 depthai_demo.py

Using depthai module from:  /Users/brianhouse/.local/lib/python3.9/site-packages/depthai.cpython-39-darwin.so

Depthai version installed:  2.20.2.0

Setting up demo...

Available devices:

[0] 184430100149620E00 [X_LINK_UNBOOTED]

USB Connection speed: UsbSpeed.SUPER

/Users/brianhouse/.local/lib/python3.9/site-packages/depthai_sdk/previews.py:186: RuntimeWarning: invalid value encountered in cast

  dispFrame = (dispFrame * 255. / dispIntegerLevels).astype(np.uint8)

Stopping demo...

=== TOTAL FPS ===

  File "/Users/brianhouse/Luxonis/depthai/depthai_demo.py", line 656, in run

    self.instance.run_all(self.conf)

  File "/Users/brianhouse/Luxonis/depthai/depthai_demo.py", line 133, in run_all

    self.run()

  File "/Users/brianhouse/Luxonis/depthai/depthai_demo.py", line 317, in run

    self.loop()

  File "/Users/brianhouse/Luxonis/depthai/depthai_demo.py", line 373, in loop

    self._pv.prepareFrames(callback=self.onNewFrame)

  File "/Users/brianhouse/.local/lib/python3.9/site-packages/depthai_sdk/managers/preview_manager.py", line 148, in prepareFrames

    packet = queue.tryGet()

RuntimeError: Communication exception - possible device error/misconfiguration. Original message 'Couldn't read data from stream: 'color' (X_LINK_ERROR)'

jakaskerl

Yes all scripts referencing the right and left mono cameras work perfect. Just the RGb does nothing.

Specifically I have been trying to compare and contrast the rgbpreview.py (that does nothing, generates no errors but does not even render a black window) and mono_preview.py that does work. I am trying to debug these variables in pycharm:

xoutLeft = pipeline.create(dai.node.XLinkOut)

According to the hellow world example provided in the documentation, this is where the camera gets 'added' whether it be RGB or Monjo. I am trying to figure out what is different with the camera that works and the one that doesnt.

Anything specific I could look at to determine where the issue may lie.

I was looking at the connection attribute but is says 'None' for the value for both cameras so that is not a good indicator why one would work and one would not. Any variable specifically I could set a debug 'watch' to shed more light on this?

jakaskerl

Where do I find the pipeline graph tool? What do I need to execute it?

Brian

jakaskerl

thanks

jakaskerl

Here is the output from first running mono_preview.py which does work:

(base) Brians-MacBook-Pro:examples brianhouse$ pipeline_graph run "python3 MonoCamera/mono_preview.py"

Pipeline schema retrieved

Program exited.

0. MonoCamera.out (10) -> XLinkOut.in (2)

1. MonoCamera.out (6) -> XLinkOut.in (1)

Here is the output from rgb_preview.py which does not work:

(base) Brians-MacBook-Pro:examples brianhouse$ pipeline_graph run "python3 ColorCamera/rgb_preview.py"

Pipeline schema retrieved

Program exited.

0. ColorCamera.preview (8) -> XLinkOut.in (1)

BrianHouse

ok, I figured out all the dependencies. I have Camera Test working. I guess I take all the defaults to the prompts and 'connect' to the device"?

BrianHouse

Here is the output:

(base) Brians-MacBook-Pro:tests brianhouse$ python3 cam_test.py 

Enabled cameras:

    rgb : color

   left : mono

  right : mono

   camd : color

DepthAI version: 2.21.2.0

DepthAI path: /Users/brianhouse/Library/Python/3.8/lib/python/site-packages/depthai.cpython-38-darwin.so

[184430100149620E00] [20.4.2] [0.989] [ColorCamera(8)] [error] Camera not detected on socket: 3

[184430100149620E00] [20.4.2] [0.990] [MonoCamera(6)] [error] OV7251 only supports THE_480_P/THE_400_P resolutions, defaulting to THE_480_P

[184430100149620E00] [20.4.2] [0.990] [MonoCamera(4)] [error] OV7251 only supports THE_480_P/THE_400_P resolutions, defaulting to THE_480_P

Connected cameras:

 -socket RGB   : IMX214 4208 x 3120 focus:auto  - COLOR

 -socket LEFT  : OV7251  640 x  480 focus:fixed - MONO

 -socket RIGHT : OV7251  640 x  480 focus:fixed - MONO

USB speed: SUPER

IR drivers: []

Cam:      rgb           left          right         camd     [host | capture timestamp]

FPS:   0.00|  0.00  30.15| 30.01  30.16| 30.01   0.00|  0.00Exiting cleanly

jakaskerl

Sure thanks for all your help Erik and Jaka!

AdamShortland

Hi Adam,

I have not received it yet. I also asked them for tracking info which I have not received yet.

Brian