# Identifying content in a SMPTE 2110 source
<a name="extract-contents-s2110"></a>

The content in a SMPTE 2110 source is always a set of streams consisting of one video asset, zero or more audio assets, and zero or more captions (ancillary data) assets. Each asset is in its own stream. 

Obtain identifying information from the content provider.


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[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/medialive/latest/ug/extract-contents-s2110.html)