Automatic failover is enabled. The primary input stream is always
preferred over its backup input streams configured using the
[AutomaticFailover][google.cloud.video.livestream.v1.InputAttachment.AutomaticFailover]
field.
Manual
Automatic failover is disabled. You must use the
[inputSwitch][google.cloud.video.livestream.v1.Event.input_switch] event
to switch the active input source for the channel to stream from. When
this mode is chosen, the
[AutomaticFailover][google.cloud.video.livestream.v1.InputAttachment.AutomaticFailover]
field is ignored.