public JobInput withAspectRatio(String aspectRatio) {
        setAspectRatio(aspectRatio);
        return this;
    }
<p>
The aspect ratio of the input file. If you want Elastic Transcoder to automatically detect the aspect ratio of
the input file, specify <code>auto</code>. If you want to specify the aspect ratio for the output file, enter one
of the following values:
</p>
<p>
<code>1:1</code>, <code>4:3</code>, <code>3:2</code>, <code>16:9</code>
</p>
<p>
If you specify a value other than <code>auto</code>, Elastic Transcoder disables automatic detection of the
aspect ratio.
</p>

@param aspectRatio
       The aspect ratio of the input file. If you want Elastic Transcoder to automatically detect the aspect
       ratio of the input file, specify <code>auto</code>. If you want to specify the aspect ratio for the output
       file, enter one of the following values: </p>
       <p>
       <code>1:1</code>, <code>4:3</code>, <code>3:2</code>, <code>16:9</code>
       </p>
       <p>
       If you specify a value other than <code>auto</code>, Elastic Transcoder disables automatic detection of
       the aspect ratio.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-elastictranscoder/src/main/java/com/amazonaws/services/elastictranscoder/model/JobInput.java