![]() ![]() I have tried to view the webcam with cheese and have never had a problem. I have tried two different "builds" of opencv. I have tried reinstalled everything several times, although it takes a few hours to reflash the TX2 and re-install open CV and Tensorflow. NV21: same as NV12 except reverse order of U and V planes.NV12: 8-bit Y plane followed by an interleaved U/V plane with 2x2 subsampling.I420: 8 bit Y plane followed by 8 bit 2x2 subsampled U and V planes.Three options are provided, identified via the UVC video format 4CC code: Resolution is 640x512 for both the 320 and 640 configurations. ■ Post-Colorize, YCbCrb: The output is transformed to YCbCr color space using the specified color palette (see Section 6.7). This option is identified with a UVC video format 4CC code of “Y16 ” (16-bit uncompressed greyscale image) Note that AGC settings, zoom settings, and color-encoding settings have no effect on the output signal at this tap point. ■ Pre-AGC (16-bit): The output is linearly proportional to the flux incident on each pixel in the array output resolution is 320x256 for the 320 configuration, 640x512 for the 640 configuration. Note the options are not selected via the CCI but rather by the video capture or viewing software selected by the user. One last bit of info, this is out of the FLIR Boson manuel related to USB:īoson is capable of providing digital data as a USB Video Class (UVC) compliant device. ![]() I am new to all of this so forgive me if I ask for more clarification. I also have a Jetson Xavier and the same object detection program works on it (it just has a different build of OpenCV and Tensorflow), so I am guessing that there is a slightly different configuration related to webcam format compatibility on that OpenCV install on the Xavier VS the TX2. In my research on the error, it seems to come up with people who use webcams that are monochrome, looking at this I am wondering if I need to configure OpenCV or the V4L2 driver to choose the right format for the webcam to prevent the errors. VIDEOIO ERROR: V4L: Initial Capture Error: Unable to load initial memory buffers. I have it working with a regular webcam but with the FLIR Boson it gives libv4l2: error set_fmt gave us a different result then try_fmt! The reason that is relevant is I am trying to get the FLIR Boson to work with a Jetson TX2 running this program # When everything done, release the captureĪlthough it does display the video it shows those errors. Then we use stardard call to paint in GREY. We call this process AGC, and in this example we use the most basic one (LINEAR). Video in 16 bits is not paintable so a linear transformation needs to happen before displaying the image. I am using this python script: import numpy as np Boson USB has two modes, AGC-8 bits and RAW-16bits. VIDEOIO ERROR: libv4l unable convert to requested pixfmt When I try to open a webcam (FLIR Boson) with OpenCV on a Jetson TX2 it gives the following error: libv4l2: error set_fmt gave us a different result then try_fmt!
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