@java.lang.Override
    public java.lang.String getTune() {
      java.lang.Object ref = tune_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        tune_ = s;
        return s;
      }
    }
<pre>
Enforces the specified codec tune. The available options are
[FFmpeg-compatible](https://trac.ffmpeg.org/wiki/Encode/H.265).
Note that certain values for this field may cause the
transcoder to override other fields you set in the `H265CodecSettings`
message.
</pre>

<code>string tune = 18;</code>

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