in AzureCommunicationUI/sdk/AzureCommunicationUICalling/Sources/Presentation/SwiftUI/Calling/CallingViewComponent/ControlBarViewModel.swift [240:250]
func isCameraDisabled() -> Bool {
buttonViewDataState.callScreenCameraButtonState?.enabled == false ||
cameraPermission == .denied ||
cameraState.operation == .pending ||
callingStatus == .localHold ||
callingStatus == .inLobby ||
isCameraStateUpdating ||
isBypassLoadingOverlay() ||
!capabilitiesManager.hasCapability(capabilities: self.capabilities,
capability: ParticipantCapabilityType.turnVideoOn)
}