Using the RTL-SDR in the Pothos Dataflow Processing Platform
Pothos is a dataflow processing platform that can be used for signal processing through a graphical GUI that works in a similar way to GNU Radio. Over on YouTube the developers have released a tutorial video that shows how to use Pothos to interact with an RTL-SDR dongle. In the video they create a design which shows an RF spectrum and waterfall display.
Remote SDR with Pothos