Files
platform-external-webrtc/modules/rtp_rtcp/source
Niels Möller 1a3859c161 Simplify book-keeping of lost packets
Update the |cumulative_lost_| counter per received packet. The rules
follow from RFC 3550 and are fairly simple: Decrement the counter by
one for every received packet. For every in-order packet, i.e., increasing
|received_seq_max_|, add that change to |cumulative_lost_|.

Net change is zero as long as packets are received in proper sequence.

This way, GetStats() always returns an up-to-date value, independent
of the timing of RTCP report blocks.

For RTCP reports, keep a workaround to never report negative cumulative loss.

Bug: webrtc:10679
Change-Id: I47ff3bf266ff2382f405ec9828d34f7fad7068b4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/150641
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29058}
2019-09-04 08:53:32 +00:00
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