private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.livestream.v1.Encryption.SampleAesEncryption,
            com.google.cloud.video.livestream.v1.Encryption.SampleAesEncryption.Builder,
            com.google.cloud.video.livestream.v1.Encryption.SampleAesEncryptionOrBuilder>
        getSampleAesFieldBuilder() {
      if (sampleAesBuilder_ == null) {
        if (!(encryptionModeCase_ == 5)) {
          encryptionMode_ =
              com.google.cloud.video.livestream.v1.Encryption.SampleAesEncryption
                  .getDefaultInstance();
        }
        sampleAesBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.livestream.v1.Encryption.SampleAesEncryption,
                com.google.cloud.video.livestream.v1.Encryption.SampleAesEncryption.Builder,
                com.google.cloud.video.livestream.v1.Encryption.SampleAesEncryptionOrBuilder>(
                (com.google.cloud.video.livestream.v1.Encryption.SampleAesEncryption)
                    encryptionMode_,
                getParentForChildren(),
                isClean());
        encryptionMode_ = null;
      }
      encryptionModeCase_ = 5;
      onChanged();
      return sampleAesBuilder_;
    }
<pre>
Configuration for HLS SAMPLE-AES encryption.
</pre>

<code>.google.cloud.video.livestream.v1.Encryption.SampleAesEncryption sample_aes = 5;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Encryption.java