gstreamer:
	+ multicast playing (rtp mpeg ts)
	+ dvb playing
	+ rtsp playing
	+ file player
	+ http player with cookie support
	+ automatic deinterlace support
	+ subtitle functionality
	+ language selection
	- DVD input
	- crop (only autocrop)

do not hide mouse pointer if events are not processed
mouse motion for channel menu entries
record youtube channels
cleanup browser.py
EPG: http://www.etsi.org/deliver/etsi_en/300400_300499/300468/01.11.01_60/en_300468v011101p.pdf
videorelay rtsp support:
	https://github.com/tamaggo/gstreamer-examples/blob/master/test_gst_rtsp_server.py

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/blob/main/subprojects/gst-plugins-bad/tests/examples/waylandsink/main.c
<slomo:#gstreamer> SALstar: use gtk(gl)sink with gtk3, gtk4paintablesink with
  gtk4
<slomo:#gstreamer> embedding windows and rendering things outside the UI
  toolkits rendering infrastructure is not a good idea. and for wayland you'll
  need a bit of wayland-specific code to do that (and it only works with gtk3)
<slomo:#gstreamer> there's an example in https://gitlab.freedesktop.
  org/gstreamer/gstreamer/-/blob/main/subprojects/gst-plugins-bad/tests/example
  s/waylandsink/main.c