no audio using screen mirroring

[clubanderson]

I was able to install and run rpiplay on my RPI b2 running buster lite with display interface connected to a 7-Inch Touch Screen for. I am able to mirror video from my iPhone to the RPI using '/home/pi/RPiPlay/build/rpiplay -b auto -n "AirPlay" -vr rpi -ar rpi -a analog -l'

I am able to hear audio if I test with
'speaker-test -c2 -twav -l7'

I tried to use gstreamer as the '-ar' value and received this error:
** (rpiplay:967): CRITICAL **: 15:36:43.811: gst_app_src_push_internal: assertion 'GST_IS_APP_SRC (appsrc)' failed

Video is working great, just trying to get the audio to work over the analog output of the RPI

One related question - does screen mirroring allow touch input? I don't think so, but I thought I would ask.