http://www.rfc-editor.org/rfc/rfc7243.txt
RFC 7243: RTP Control Protocol (RTCP) Extended Report (XR) Block for the Bytes Discarded Metric, V. Singh, J. Ott, I. Curcio2014-05-01T23:00:00-00:00The RTP Control Protocol (RTCP) is used in conjunction with the Real-time Transport Protocol (RTP) to provide a variety of short-term and long-term reception statistics. The available reporting may include aggregate information across longer periods of time as well as individual packet reporting. This document specifies a report computing the bytes discarded from the de-jitter buffer after successful reception.