public void setCodecSpecification(String codecSpecification) {
        this.codecSpecification = codecSpecification;
    }
Specification to use (RFC-6381 or the default RFC-4281) during m3u8 playlist generation.

@param codecSpecification
       Specification to use (RFC-6381 or the default RFC-4281) during m3u8 playlist generation.
@see CmafCodecSpecification
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/CmafGroupSettings.java