Figure 2 provides an overview of the system when using a transcoder node. The process works as follows:

1. A provision is provided to the Stream Manager. Specifying the different variants of the stream that will be published. Then, the Stream Manager API is used to request a transcoder endpoint.
2. Stream Manager selects a suitable origin and transcoder. The Origin is provisioned to expect multiple versions of the stream; the Transcoder is provisioned with details of the variants it needs to create.
3. The Stream Manager returns a JSON object with the details of the transcoder endpoint that should be used to broadcast.
4. The broadcaster can then start to publishing a single stream to the transcoder.

This document will explain the process that needs to be followed and the API calls involved to deliver an adaptive bitrate video stream.