Hello, Part of RTCP XR report is about discard/lost packets. As I see, we report discard/lost events to RTCP XR module only in pjmedia_rtcp_rx_rtp2() For example, /* Report RTCP XR about packet losses */ for (i=seq_st.diff-1; i>0; --i) { pjmedia_rtcp_xr_rx_rtp(&sess->xr_session, seq - i, 1, /* lost */ 0, /* dup */ 0, /* discard */ -1, /* jitter */ -1, 0); /* toh */ } But one more part of discard/lost statistics is collected inside jitter buffer in "pjmedia_jbuf" structure by updating the following fields: struct pjmedia_jbuf { ... unsigned jb_lost; /**< Number of lost frames. */ unsigned jb_discard; /**< Number of discarded frames. */ } But I cannot find in code how this data is taken into account by RTCP XR module. Am I missing something or it is a bug in RTCP XR module? Thanks, Maxim