Instead of fully decoding and re-encoding the video—which consumes vast amounts of CPU power—the server changes the outer container format of the video stream on the fly to make it compatible with web browsers and mobile devices. 2.3 The Distribution Layer
"The ethical implications of ubiquitous civilian surveillance remain highly contested." Standardeinstellung
If you would like to expand this academic overview further, please let me know:
Real-time video applications favor the over the Transmission Control Protocol (TCP) . TCP requires a three-way handshake and forces retransmission of lost packets. In a live camera feed, a delayed packet is useless; by the time a lost packet is retransmitted, the live action has already moved forward, causing the video to freeze or stutter.