google.cloud.video.transcoder_v1beta1.types.Overlay.NormalizedCoordinate
Normalized coordinates based on output video resolution.
Valid values: 0.0–1.0. xy is the upper-left
coordinate of the overlay object. For example, use the x and
y coordinates {0,0} to position the top-left corner of the
overlay animation in the top-left corner of the output
video.
start_time_offset
google.protobuf.duration_pb2.Duration
The time to start displaying the overlay
object, in seconds. Default: 0