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Fixed RTCP packet lost calculation #3653

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merged 6 commits into from
Aug 31, 2023
Merged

Fixed RTCP packet lost calculation #3653

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5fe88fc
Fixed RTCP packet lost calculation
sauwming Aug 9, 2023
b8d227a
Start the packet received and lost calculation after probation
sauwming Aug 9, 2023
894fcca
Fix seq rollover during probation
sauwming Aug 11, 2023
14c2a78
Move the calculation on incoming RTP instead
sauwming Aug 29, 2023
e5f68ff
Fixed loss period calculation
sauwming Aug 29, 2023
20e2d00
Minor optimization
sauwming Aug 30, 2023
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15 changes: 9 additions & 6 deletions pjmedia/src/pjmedia/rtcp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -374,8 +374,8 @@ PJ_DEF(void) pjmedia_rtcp_rx_rtp2(pjmedia_rtcp_session *sess,
++sess->received;

/* Calculate packet lost and loss periods. */
if (!seq_st.status.flag.outorder) {
unsigned count = 0;
if (!seq_st.status.flag.probation && !seq_st.status.flag.outorder) {
unsigned count = 0, loss = 0;
unsigned period;
pj_uint32_t last_seq, expected;

Expand All @@ -384,17 +384,20 @@ PJ_DEF(void) pjmedia_rtcp_rx_rtp2(pjmedia_rtcp_session *sess,
expected = last_seq - sess->seq_ctrl.base_seq;

if (expected > sess->received)
count = expected - sess->received;
loss = expected - sess->received;

if (loss > sess->stat.rx.loss)
count = loss - sess->stat.rx.loss;
period = count * sess->dec_pkt_size * 1000 / sess->clock_rate;
period *= 1000;
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minor: move this period calculation to inside the loss_period update block below?


sess->stat.rx.loss = count;
TRACE_((sess->name, "%d packet(s) lost", count));
sess->stat.rx.loss = loss;

/* Update loss period stat */
if (period > 0)
if (count > 0) {
TRACE_((sess->name, "%d packet(s) lost", count));
pj_math_stat_update(&sess->stat.rx.loss_period, period);
}
}


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