Get the free / public video files associated with an item given maximum resolution, device type and one or more delivery types.
Returns an array of video file objects which each include a url to a video.
The first entry in the array contains what is predicted to be the best match. The remainder of the entries, if any, may contain resolutions below what was requests. For example if you request HD-720 the response may also contain SD entries.
If you specify multiple delivery types, then the response array will insert
types in the order you specify them in the query. For example stream,progressive
would return an array with 0 or more stream files followed by 0 or more progressive files.
If no files are found a 404 is returned.