Andrey

Interesting. There is no GST_MESSAGE_DEVICE_CHANGED defined in my gstmessage.h What is your version of gstreamer? Mine is default for Ubuntu 18.04 ``` ~$ gst-launch-1.0 --gst-version GStreamer Core Library version 1.14.5...

Thank you, all! I'll try to upgrade to newer version. Maybe it would be good to add to the README minimal supported version of gstreamer?

Yes, unfortunately I skipped section "Contributing" because I have none to contribute yet. It is my first experience with golang :)

I updated to newer version and it looks like gstreamer 1.16 is not enough. I guess it requiers 1.18 ``` ~/work/go-gst/examples$ go run playbin/main.go # github.com/tinyzimmer/go-gst/gst ../gst/gst_values.go:575:2: could not determine...