private void ensureShotAnnotationsIsMutable() {
      if (!((bitField0_ & 0x00000100) != 0)) {
        shotAnnotations_ =
            new java.util.ArrayList<com.google.cloud.videointelligence.v1p3beta1.VideoSegment>(
                shotAnnotations_);
        bitField0_ |= 0x00000100;
      }
    }
<pre>
Face detection annotations.
</pre>

<code>
repeated .google.cloud.videointelligence.v1p3beta1.FaceDetectionAnnotation face_detection_annotations = 13;
</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/VideoAnnotationResults.java