RTP/RTCP

Real-time Protocol (RTP) is a transport protocol, specifically over UDP, based on RFC 3550. It is used in real-time multimedia applications and in end-to-end real-time data stream transfer. In order to achieve that, a video, for example, goes through a number of steps:

  1. Encoding
  2. Packetizing
  3. Transport Control
  4. Reassembly
  5. Decoding

Although RTP is specified to carry the media stream, there is another protocol that works with RTP called Real-time Control Protocol (RTCP). This protocol works side by side with RTP to monitor transmissions and assure Quality of Service (QoS). The aim of RTCP is checking whether there is packet loss during ...

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