@java.lang.Override
  public com.google.cloud.video.transcoder.v1.PreprocessingConfig getPreprocessingConfig() {
    return preprocessingConfig_ == null
        ? com.google.cloud.video.transcoder.v1.PreprocessingConfig.getDefaultInstance()
        : preprocessingConfig_;
  }
<pre>
Preprocessing configurations.
</pre>

<code>.google.cloud.video.transcoder.v1.PreprocessingConfig preprocessing_config = 3;</code>

@return The preprocessingConfig.
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/Input.java