Httpclient continuous multipart stream

Question

I totally hit my limit here:

I am working with an API that offers me this:

For a running event, the video images can be received in the form of a continuous multipart stream. The stream ends as soon as the event finishes.

Would would I capture this?

I started coding something like this:

System.Net.WebResponse res = req.GetResponse();
System.IO.Stream ReceiveStream = res.GetResponseStream();
using (System.IO.StreamReader sr = new System.IO.StreamReader(ReceiveStream, Encoding.UTF8))

which works like a charm, as long as there is only 1 response.

Could someone point me in the right direction?