public com.google.cloud.video.transcoder.v1.PreprocessingConfig.Pad.Builder getPadBuilder() {
      bitField0_ |= 0x00000020;
      onChanged();
      return getPadFieldBuilder().getBuilder();
    }
<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