I confirm that the THETA V with firmware 3.60.1 running the RTSP plug-in v 1.0.3 does not work in my tests on VLC. I tried different resolutions. All failed.
I have it working on ffplay using firmware 3.60.1 with the “nobuffer” flag.
fplay -fflags nobuffer -i rtsp://192.168.XXX.XXX:8554/live?resolution=1920x960
The source code is here GitHub - science-arts/THETA-RTSP-plugin: RTSP plugin for THETA
Though, it’s beyond my ability to work with.
community member pstawicki has the RTMP Wireless Live Streaming Plug-in working with NGINX with the rtmp module.
If you can work with ffplay, then the technique with no buffer may work for you.