public Eac3Settings withPassthroughControl(Eac3PassthroughControl passthroughControl) {
        this.passthroughControl = passthroughControl.toString();
        return this;
    }
When set to WHEN_POSSIBLE, input DD+ audio will be passed through if it is present on the input. this detection
is dynamic over the life of the transcode. Inputs that alternate between DD+ and non-DD+ content will have a
consistent DD+ output as the system alternates between passthrough and encoding.

@param passthroughControl
       When set to WHEN_POSSIBLE, input DD+ audio will be passed through if it is present on the input. this
       detection is dynamic over the life of the transcode. Inputs that alternate between DD+ and non-DD+ content
       will have a consistent DD+ output as the system alternates between passthrough and encoding.
@return Returns a reference to this object so that method calls can be chained together.
@see Eac3PassthroughControl
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/Eac3Settings.java