@Override
    public String toString() {
        return this.value;
    }
When enabled, file composition times will start at zero, composition times in the 'ctts' (composition time to sample)
box for B-frames will be negative, and a 'cslg' (composition shift least greatest) box will be included per 14496-1
amendment 1. This improves compatibility with Apple players and tools.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/MovCslgAtom.java