Point Grey USB Camera Capture Sample

The Point Grey USB Camera Capture sample enables capturing from Point Grey USB cameras. The sample opens an X window showing the output of a camera. Note that this sample was designed to be used with the Chameleon USB camera series, although support may be extended to other families of Point Grey USB cameras. This sample is compatible with Linux/Windows and DRIVE PX 2.

Single consumer grade Point Grey USB camera capture

Prerequisites

Follow these steps before running sample_camera_pointgrey on DRIVE PX 2:

1. Download the FlyCapture2 SDK from https://www.ptgrey.com/support/downloads/10616/
2. Extract the package and perform the following steps:

    cd flycapture.2.9.3.43_arm64
    sudo sh flycap2-conf
    cd lib
    sudo cp libflycapture* /usr/lib/
    cd C
    sudo cp * /usr/lib
   

   This configures the udev and copies the required shared library files to /usr/lib.

3. Add the following lines to /etc/sysctl.conf:

    net.core.rmem_default = 1048576
    net.core.rmem_max = 10485760
    net.core.wmem_default = 1048576
    net.core.wmem_max = 10485760
    net.core.netdev_max_backlog = 30000
    net.ipv4.ipfrag_high_thresh = 8388608
    net.ipv6.conf.all.disable_ipv6 = 1
    vm.dirty_background_ratio = 5
    vm.dirty_ratio = 80
   

   A restart may be required before the changes take effect.

4. On every boot, the following must be executed:

    sudo -s
    echo 1000  > /sys/module/usbcore/parameters/usbfs_memory_mb
   

Testing

A camera must be connected to a USB port. The device ID, N of the camera to use can be specified using the --device=N command line option, which is set to 0 by default.

Default testing of the first camera present on the system:

./sample_camera_pointgrey

Default testing of the third camera on a system:

./sample_camera_pointgrey --device=2