@Override
    public String toString() {
        return this.value;
    }
Specify how you want MediaConvert to determine the segment length. Choose Exact to have the encoder use the exact
length that you specify with the setting Segment length. This might result in extra I-frames. Choose Multiple of GOP
to have the encoder round up the segment lengths to match the next GOP boundary.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/HlsSegmentLengthControl.java