@Override
    public String toString() {
        return this.value;
    }
To place the MOOV atom at the beginning of your output, which is useful for progressive downloading: Leave blank or
choose Progressive download. To place the MOOV at the end of your output: Choose Normal.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/F4vMoovPlacement.java