Setting up for streaming from CloudFront with Encoding.com is easy. Once you've enabled your clips for access by authenticated users or public use, follow these steps in the AWS console under CloudFront:
1 – Create a new Distribution. Set the delivery method to 'Download' – Selecting 'streaming' will not work for this workflow
2 – Customize the next screen, or just click 'Continue' / 'Create Distribution'
3 – Deliver as normally to the bucket specified for CloudFront and you're ready to go.
For more information on CloudFront streaming, please see AWS's documentation here: http://aws.amazon.com/cloudfront/