public Mpeg2Settings withGopSizeUnits(Mpeg2GopSizeUnits gopSizeUnits) {
        this.gopSizeUnits = gopSizeUnits.toString();
        return this;
    }
Relates to the GOP structure. Specifies whether the gopSize is specified in frames or seconds. If you do not plan
to change the default gopSize, leave the default. If you specify SECONDS, MediaLive will internally convert the
gop size to a frame count.

@param gopSizeUnits
       Relates to the GOP structure. Specifies whether the gopSize is specified in frames or seconds. If you do
       not plan to change the default gopSize, leave the default. If you specify SECONDS, MediaLive will
       internally convert the gop size to a frame count.
@return Returns a reference to this object so that method calls can be chained together.
@see Mpeg2GopSizeUnits
aws-java-sdk-medialive/src/main/java/com/amazonaws/services/medialive/model/Mpeg2Settings.java