OpenCV issue on Xavier NX emulator

Our customer is trying to set up “Xavier hardware with Xavier NX emulator software installed” system in order to evaluate performance of NX.
However customer is facing some technical problems and asking us for advice.
If you can give us some advice, it will be helpful.

Error Situation is as follows.

  • Following OpenCV error message comes up when we try to process USB Camera video data.

OpenCV(3.4.7) ~~~~~/opencv/modules/videoio/src/cap_images.cpp:246: error: (-5:Bad argument) CAP_IMAGES: can’t find starting number(in the name of file): ~~~.avi in function ‘icvExtractPattern’

Apply “Jetson_Xavier_NX_overlay.tbz2” into “JetPack4.3 Developer Preview”. Install CUDA10.0.326、cuDNN7.6.3、TensorRT6.0.1 by JetPack4.3 procedure. Build and install “OpenCV” from github(

If you can assume the cause from error massage, it may be helpful.

Hi Ray,

Could you try to share what openCV application are you using?
Could you share the source code?

Hi Ray,

We haven’t heard back from you in a couple weeks, so marking this topic closed.
Please open a new forum issue when you are ready and we’ll pick it up there.

The error message is pretty clear:

This means that the file name specified doesn’t follow the format needed – the format seems to be supposed to be 0001.avi or something like it.