public Mp4Settings getMp4Settings() {
        return this.mp4Settings;
    }
These settings relate to your MP4 output container. You can create audio only outputs with this container. For
more information, see
https://docs.aws.amazon.com/mediaconvert/latest/ug/supported-codecs-containers-audio-only.html
#output-codecs-and-containers-supported-for-audio-only.

@return These settings relate to your MP4 output container. You can create audio only outputs with this
        container. For more information, see
        https://docs.aws.amazon.com/mediaconvert/latest/ug/supported-codecs-containers
        -audio-only.html#output-codecs-and-containers-supported-for-audio-only.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/ContainerSettings.java