advanced-camera-card/docs/usage/casting.md

Casting

This card allows casting a camera stream to a Google Cast device. You can enable the cast button with:

type: custom:frigate-card
cameras:
  - camera_entity: camera.office
    live_provider: go2rtc
menu:
  media_player:
    enabled: true

Clicking this button will allow you to choose a Google Cast device to cast the camera stream to, or the clip that is currently playing.

There are two different casting methods for cameras: standard and dashboard (see below).

Standard Casting

This is the default casting method.

type: custom:frigate-card
cameras:
  - camera_entity: camera.office
    live_provider: go2rtc
    cast:
      method: standard
menu:
  media_player:
    enabled: true

This will send the camera stream to the Google Cast device through the use of the media_player.play_media Home Assistant action.

The main disadvantage of this method is that the stream will be played through HLS which has a delay of around 10 seconds, making it sub-optimal for live monitoring.

Dashboard Casting

This method is powered by Home Assistant Cast and requires additional configuration, but allows low latency streaming with go2rtc.

type: custom:frigate-card
cameras:
  - camera_entity: camera.office
    live_provider: go2rtc
    cast:
      method: dashboard
      dashboard:
        dashboard_path: dashboard-cast
        view_path: office

When the cast button is clicked, the card will perform the following Home Assistant action:

action: cast.show_lovelace_view
data:
  entity_id: media_player.kitchen
  dashboard_path: dashboard-cast
  view_path: office

Which in turn will cast the specified Home Assistant dashboard (and view) to the Google Cast device.

For the example above to work, a dashboard with dashboard-cast URL must exist:

Within that dashboard, create an office view and finally within that view you can place the Frigate card configured for that camera for a proper full-screen casting experience:

views:
  - title: Office
    type: panel
    path: office
    cards:
      - type: custom:frigate-card
        cameras:
          - camera_entity: camera.office
            live_provider: go2rtc
        profiles:
          - low-performance
          - casting

The casting profile pre-configures the card to be casted to a 16:9 screen (such as a TV), including hiding all interactive elements and the menu. The low-performance profile is also recommended, as normally casting devices have limited hardware capabilities.

When casting to a Google Nest Hub, the following configuration can be used:

type: custom:frigate-card
cameras:
  - camera_entity: camera.office
    live_provider: go2rtc
profiles:
  - low-performance
  - casting
menu:
  style: hidden
dimensions:
  aspect_ratio: 1024:600

This restores the menu and sets the aspect ratio to 1024:600, which is the resolution of the Nest Hub.

Limitations

Casting Home Assistant dashboards comes with a number of caveats:

• Home Assistant Casting does not support the HA streaming component (source). This means clips playing and the ha live provider can not work. Other live providers such as jsmpeg and webrtc-card function correctly.
• The Javascript fullscreen API does not work, so the fullscreen button does not work (use a panel view instead).