public void setSoftness(Integer softness) {
        this.softness = softness;
    }
Ignore this setting unless your downstream workflow requires that you specify it explicitly. Otherwise, we
recommend that you adjust the softness of your output by using a lower value for the setting Sharpness or by
enabling a noise reducer filter. The Softness setting specifies the quantization matrices that the encoder uses.
Keep the default value, 0, for flat quantization. Choose the value 1 or 16 to use the default JVT softening
quantization matricies from the H.264 specification. Choose a value from 17 to 128 to use planar interpolation.
Increasing values from 17 to 128 result in increasing reduction of high-frequency data. The value 128 results in
the softest video.

@param softness
       Ignore this setting unless your downstream workflow requires that you specify it explicitly. Otherwise, we
       recommend that you adjust the softness of your output by using a lower value for the setting Sharpness or
       by enabling a noise reducer filter. The Softness setting specifies the quantization matrices that the
       encoder uses. Keep the default value, 0, for flat quantization. Choose the value 1 or 16 to use the
       default JVT softening quantization matricies from the H.264 specification. Choose a value from 17 to 128
       to use planar interpolation. Increasing values from 17 to 128 result in increasing reduction of
       high-frequency data. The value 128 results in the softest video.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/XavcSettings.java