Framegrabber / Scaler

For the conferences we are covering, most presenters use their own PC.
The resolution and frame rates of these PCs widely differ.
To get a consistent signal into the video mixer, we have to scale or convert the output signal to a uniform type.
Another similar list from the timevideo project can be found on https://github.com/timvideos/HDMI2USB/wiki/Alternatives

Those devices are usually accessed via Video4Linux2. USB3 / 3.1 capable devices are mostly UVC devices.
A recent (> 5.0) Kernel is recommended.
The Linux tool uvcdynctrl - libwebcam command line tool can be used to tweak settings.

  • 'professional' scaler aka 'Folson Image Pro HD 2'
    • we only rent these if necessary for more complex setups e.g. used at C3
    • some [e.g. Analogway Pulse] can also be used as seemless switcher
    • expensive

A list of potential interesting frame grabber hardware which we have not tested yet (from 2014, probably outdated)

  • hardware/framegrabber.txt
  • Last modified: 2020/08/25 10:28
  • by derpeter