public H264Settings withRateControlMode(H264RateControlMode rateControlMode) {
        this.rateControlMode = rateControlMode.toString();
        return this;
    }
Use this setting to specify whether this output has a variable bitrate (VBR), constant bitrate (CBR) or
quality-defined variable bitrate (QVBR).

@param rateControlMode
       Use this setting to specify whether this output has a variable bitrate (VBR), constant bitrate (CBR) or
       quality-defined variable bitrate (QVBR).
@return Returns a reference to this object so that method calls can be chained together.
@see H264RateControlMode
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/H264Settings.java