I actually only need the Dahua integration for my Dahua NVR and the KI-Features (human, vehicle, line detection) 
but then I must switch the mainstream from H.265 to H.264 for live streaming,
which I don’t want. Edit: And I can only use/see one camera (channel 1) from the NVR. At the moment I use generic camera with the substream 2 with H.264 and 720P.
Too bad my Amcrest AD110 camera is not supported by the Dahua integration and it’s too bad rroller doesn’t have time for further development. 