@java.lang.Override
    public com.google.cloud.video.livestream.v1.Encryption.Aes128EncryptionOrBuilder
        getAes128OrBuilder() {
      if ((encryptionModeCase_ == 4) && (aes128Builder_ != null)) {
        return aes128Builder_.getMessageOrBuilder();
      } else {
        if (encryptionModeCase_ == 4) {
          return (com.google.cloud.video.livestream.v1.Encryption.Aes128Encryption) encryptionMode_;
        }
        return com.google.cloud.video.livestream.v1.Encryption.Aes128Encryption
            .getDefaultInstance();
      }
    }
<pre>
Configuration for HLS AES-128 encryption.
</pre>

<code>.google.cloud.video.livestream.v1.Encryption.Aes128Encryption aes128 = 4;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Encryption.java