private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration,
            com.google.protobuf.Duration.Builder,
            com.google.protobuf.DurationOrBuilder>
        getSegmentDurationFieldBuilder() {
      if (segmentDurationBuilder_ == null) {
        segmentDurationBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Duration,
                com.google.protobuf.Duration.Builder,
                com.google.protobuf.DurationOrBuilder>(
                getSegmentDuration(), getParentForChildren(), isClean());
        segmentDuration_ = null;
      }
      return segmentDurationBuilder_;
    }
<pre>
Duration of the segments in seconds. The default is `6.0s`. Note that
`segmentDuration` must be greater than or equal to
[`gopDuration`](#videostream), and `segmentDuration` must be divisible by
[`gopDuration`](#videostream).
</pre>

<code>.google.protobuf.Duration segment_duration = 1;</code>
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/SegmentSettings.java