public Builder setMpegCenc(
        com.google.cloud.video.livestream.v1.Encryption.MpegCommonEncryption value) {
      if (mpegCencBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        encryptionMode_ = value;
        onChanged();
      } else {
        mpegCencBuilder_.setMessage(value);
      }
      encryptionModeCase_ = 6;
      return this;
    }
<pre>
Configuration for MPEG-Dash Common Encryption (MPEG-CENC).
</pre>

<code>.google.cloud.video.livestream.v1.Encryption.MpegCommonEncryption mpeg_cenc = 6;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Encryption.java