private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.transcoder.v1.PreprocessingConfig.Pad,
            com.google.cloud.video.transcoder.v1.PreprocessingConfig.Pad.Builder,
            com.google.cloud.video.transcoder.v1.PreprocessingConfig.PadOrBuilder>
        getPadFieldBuilder() {
      if (padBuilder_ == null) {
        padBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.transcoder.v1.PreprocessingConfig.Pad,
                com.google.cloud.video.transcoder.v1.PreprocessingConfig.Pad.Builder,
                com.google.cloud.video.transcoder.v1.PreprocessingConfig.PadOrBuilder>(
                getPad(), getParentForChildren(), isClean());
        pad_ = null;
      }
      return padBuilder_;
    }
<pre>
Specify the video pad filter configuration.
</pre>

<code>.google.cloud.video.transcoder.v1.PreprocessingConfig.Pad pad = 6;</code>
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/PreprocessingConfig.java