public WavSettings withFormat(WavFormat format) {
        this.format = format.toString();
        return this;
    }
The service defaults to using RIFF for WAV outputs. If your output audio is likely to exceed 4 GB in file size,
or if you otherwise need the extended support of the RF64 format, set your output WAV file format to RF64.

@param format
       The service defaults to using RIFF for WAV outputs. If your output audio is likely to exceed 4 GB in file
       size, or if you otherwise need the extended support of the RF64 format, set your output WAV file format to
       RF64.
@return Returns a reference to this object so that method calls can be chained together.
@see WavFormat
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/WavSettings.java