4.13 Video Source Request Extension

Figure 19: Video Source Request Extension

Host1 sends a VSR to mixer to ask for video from Host2.  The VSR contains Host2’s MSI and the video parameters. Mixer receives this VSR and aggregates it with VSRs from other hosts asking for Host2’s video. All VSRs are resent 4 times every 190ms, then resent 5 more times every 3s.  Host2 receives the aggregated VSR and sends back the video packets. Mixer forwards the video packets to Host1 and others.