Trouble casting Camera Stream

Configuration
1

I have an RTSP Wansview IP Camera. Zoneminder connects without issue.

I have it defined in HA (as a direct RTSP source)- and it too shows perfectly.

camera:
  - platform: generic
    still_image_url: http://xxx:[email protected]/mjpeg/snap.cgi?chn=0
    stream_source: rtsp://xxx:[email protected]/live/ch0
    name: Front Drive Direct

automation:
- alias: 'Start Camera Driveway - Chromecast Study'
  trigger: 
    platform: state
    entity_id: input_boolean.stream_camera_to_chromecast_study
    from: 'off'
    to: 'on'
  action:
    - service: media_player.turn_on
      entity_id: media_player.chromecast_study
    - delay:
        seconds: 3
    - service: camera.play_stream
      data:
        entity_id: camera.front_drive_direct
        media_player: media_player.chromecast_study

However if I try to Stream it to a Google Hub and/or Chromecast its really hit and miss if it shows.And if it does connect will freeze or dropout .

When casting does HA transcode ? and is the Chromecast connecting to HA locally - or via my external URL (and therefore tromboning through the NAT on my router?)

2

Did you ever solve this as I’m having the same problem with a onvif camera stream using rtsp.

Works perfectly in a picture elements card but not through chromecast when the service is triggered.