Bases stream-video concepts (from NodeJS to MediaSource)

Question

I'm searching for a solution in streaming viedo from NodeJS server to client, and then merge them with MediaStream API.

The point is that I don't know how streaming really works.

How I have to send the video chunks throughout HTTP protocol? I see the status code 206 that is 'Partial Content'. I think that chunks generate lots of 206 code, and the last chunk generate 200 code like this:

chunck 1/5 --> 206 'Partial Content'
chunck 2/5 --> 206 'Partial Content'
chunck 3/5 --> 206 'Partial Content'
chunck 4/5 --> 206 'Partial Content'
chunck 5/5 --> 200 'OK'

That's right?

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Server Side

I found lots of example where is use the file path to generate the chunk, but I have a Buffer with the binary of the video, how I can generate the chunk?

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Client Side

I see that there's not a well done documentation about MediaSource API. In the examples that I found in the web is used the webkitsourceopenor sourceopen event, but I don't understand when they are call.

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Someone can explain me something more about streaming video, and even fix my doubts about server and client code?

Thanks a lot! :)