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D435 example code problems

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Marcjjchoo
    • Camera Model: D435
    • Firmware Version: 5.11.6
    • Operating System Version: Ubuntu Mate 18.04
    • Kernel Version (Linux Only): 4.15
    • Platform: Raspberry Pi 3B
    • SDK Version: 2.24.0
    • Language: python3/ C++
    I'm working on the Intel Realsense D435 camera on Rpi 3B, after compiling librealsense following the instructions in RaspberryPi3.md in the /doc directory, as well as building the python wrapper (import pyrealsense2 works) as instructed in https://github.com/IntelRealSense/librealsense/tree/master/wrappers/python. The realsenseviewer application works fine, displaying both the infrared and depth image. However the tools, cpp example code in /build/examples as well as python code in /wrappers/python/examples experiences a runtime error.
  • Python code (such as python-tutorial-1-depth.py) fails with:
    void librealsense::pipeline::pipeline::unsafe_start(std::shared_ptr<librealsense::pipeline::config>): Assertion ‘profile->_multistream.get_profiles().size() > 0’ failed. This failure occurs when the python code runs the line "profile = pipe.start()".
  • Running c++ code such as rs-capture or hello-realsense also results in same errors that also point towards the pipeline failing. I would like to ask what I could do to proceed. Thanks for your consideration.

 

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7 comments

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  • Alexandra Ciuriuc

    Hi Marcjjchoo,

     

    Thank you for your interest in the Intel RealSense D435 camera. 

    Can you please run rs-enumerate-devices and provide the output?

     

    Regards,

    Alexandra

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  • Marcjjchoo

    Hi, thanks for the help!

    Here's the output.

    Device info:
    Name : Intel RealSense USB2
    Serial Number : 915112070746
    Firmware Version : 05.11.06.250
    Recommended Firmware Version : 05.11.06.250
    Physical Port : /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4/1-1.4:1.0/video4linux/video0
    Debug Op Code : 15
    Advanced Mode : YES
    Product Id : 0AD6
    Usb Type Descriptor : 2.1
    Product Line : D400
    Asic Serial Number : 901313020365

    Stream Profiles supported by Stereo Module
    Supported modes:
    stream resolution fps format
    Infrared 1 1280x720 @ 6Hz Y8
    Infrared 1 640x480 @ 30Hz Y8
    Infrared 1 640x480 @ 15Hz Y8
    Infrared 1 640x480 @ 6Hz Y8
    Infrared 1 480x270 @ 60Hz Y8
    Infrared 1 480x270 @ 30Hz Y8
    Infrared 1 480x270 @ 15Hz Y8
    Infrared 1 480x270 @ 6Hz Y8
    Depth 1280x720 @ 6Hz Z16
    Depth 640x480 @ 30Hz Z16
    Depth 640x480 @ 15Hz Z16
    Depth 640x480 @ 6Hz Z16
    Depth 480x270 @ 60Hz Z16
    Depth 480x270 @ 30Hz Z16
    Depth 480x270 @ 15Hz Z16
    Depth 480x270 @ 6Hz Z16

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  • Marcjjchoo

    I've also added a screenshot of the realsense viewer in operation

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  • Alexandra Ciuriuc

    Hi Marcjjchoo,

     

    Can you please send screenshots of the exact errors you are receiving?

    Also, please keep in mind that support for Raspberry Pi and USB2 is experimental which means that many features will not work and there is severely reduced functionality.

     

    Regards,

    Alexandra

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  • Marcjjchoo

    Hi, on the top left terminal I'm trying out the compiled cpp executables, on the bottom left terminal I'm running the python examples, on the bottom right I ran python code line by line to show that the runtime error occurs at pipeline.start().

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  • Marcjjchoo

    Btw, as additional information, I built librealsense with "cmake ../ -DBUILD_EXAMPLES=true"

    I also built pyrealsense from source since pip install pyrealsense2 resulted in:

    Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
    Collecting pyrealsense2
    ERROR: Could not find a version that satisfies the requirement pyrealsense2 (from versions: none)
    ERROR: No matching distribution found for pyrealsense2

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  • Alexandra Ciuriuc

    Hi Marcjjchoo,

     

    Can you please tell me if you followed these instructions exactly?

    https://github.com/IntelRealSense/librealsense/blob/master/doc/installation_raspbian.md

     

    Regards,

    Alexandra

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