public String getTargetDurationCompatibilityMode() {
        return this.targetDurationCompatibilityMode;
    }
When set to LEGACY, the segment target duration is always rounded up to the nearest integer value above its
current value in seconds. When set to SPEC\\_COMPLIANT, the segment target duration is rounded up to the nearest
integer value if fraction seconds are greater than or equal to 0.5 (>= 0.5) and rounded down if less than 0.5 (<
0.5). You may need to use LEGACY if your client needs to ensure that the target duration is always longer than the
actual duration of the segment. Some older players may experience interrupted playback when the actual duration of
a track in a segment is longer than the target duration.

@return When set to LEGACY, the segment target duration is always rounded up to the nearest integer value above
        its current value in seconds. When set to SPEC\\_COMPLIANT, the segment target duration is rounded up to
        the nearest integer value if fraction seconds are greater than or equal to 0.5 (>= 0.5) and rounded down
        if less than 0.5 (< 0.5). You may need to use LEGACY if your client needs to ensure that the target
        duration is always longer than the actual duration of the segment. Some older players may experience
        interrupted playback when the actual duration of a track in a segment is longer than the target duration.
@see CmafTargetDurationCompatibilityMode
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/CmafGroupSettings.java