huitema
commented
1 year ago There was a discussion of this point in the MoQ interim, and there was pushback from William Law at Akamai, who is worried about fan-out. Media objects will be stored in a database, and he would rather not have to send different versions of the object to different users of a relay. This means that if we use a media ID, it should be allocated by the relay, and it should be independent of the connection and of the client.
In the current code, the media ID is set by the intended receiver of the media stream: client sets it before passing it in the "request", server sets it in the "post". This is not strictly needed, we could just assume that the media-ID is set to the stream ID of the control stream. It would make the code a little bit simpler -- no need to hold the media-ID property in the control stream, no need to code to allocate media-ID, no need to pass media-ID in Request, Post or Accept. (Still needed in datagram header and warp header.)