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gstthetauvc - Gstreamer THETA UVC plugin

Build and Install

Prerequisites

Gstreamer development package (on Ubuntu, libgstreamer1.0-dev) and libuvc with UVC1.5/H.264 support are required.

  • If libuvc is installed to non-standard directory, you may need to set location of the libuvc.pc file to PKG_CONFIG_PATH environment variable.

Build

Just run make at gsttehtauvc/thetauvc.

Install

Copy gstthetauvc.so into the gstreamer plugin directory or wherever you like.

  • If you copied into directory other than the gstreamer plugin directory, you need to set the directory path to the GST_PLUGIN_PATH environment variable.

Plugin properties

mode   : Video mode to playback
         flags: readable, writable
         Enum "GstThetauvcMode" Default: 0, "2K"
            (0): 2K               - 1920x960(THETA V/Z1)/1920x1080(THETA S)
            (1): 4K               - 3840x1920(THETA V/Z1)
serial : The serial number of the THETA to use.
         Useful if multiple THETAs are connected to the system.

For other properties, run gst-inspect-1.0 thetauvcsrc.

Example

View 4K streaming on the display

$ gst-launch-1.0 thetauvcsrc mode=4K ! queue ! h264parse ! decodebin ! queue ! autovideosink sync=false

Read into OpenCV

VideoCapture cap("thetauvcsrc ! decodebin ! autovideoconvert ! video/x-raw,format=BGRx ! queue ! videoconvert ! video/x-raw,format=BGR ! queue ! appsink");
  • Note:
    • OpenCV should be build with gstreamer backend enabled.
      • Recent OpenCV videoio binary package for Ubuntu distribution(libopencv-videoio4.*) seems to have a gstreamer backend, since it depends on libgstreamer packages.
    • You may need to replace autoplugins (e.g. deocdebin/autovideoconvert/autovideosink) with platform specific plugins.
      • On Jetson platform, nvv4l2decoder/nvvidconv/nv3dsink respectively.
    • For the gstreamer pipeline description, see comments in OpenCV source.

Use as an OBS video source

Try Gstreamer OBS Studio plugin