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Ensure packets are sorted on arrival time in CongestionControlFeedbackGenerator

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Without this, packets may be sorted in the wrong order.

Bug: webrtc:42225697
Change-Id: Ib9a72cdc7cb8f7ef6ca1571d095a6474215a83f2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/352821
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42411}
This commit is contained in:
Per K 2024-05-30 10:40:52 +00:00 committed by WebRTC LUCI CQ
parent 61dc3ac202
commit a97c292a05
2 changed files with 3 additions and 6 deletions
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6
modules/remote_bitrate_estimator/congestion_control_feedback_generator.cc
View File

@ -95,10 +95,8 @@ void CongestionControlFeedbackGenerator::SetTransportOverhead(
void CongestionControlFeedbackGenerator::SendFeedback(Timestamp now) {
absl::c_sort(packets_, [](const PacketInfo& a, const PacketInfo& b) {
if (a.ssrc == b.ssrc) {
return a.unwrapped_sequence_number < b.unwrapped_sequence_number;
}
return a.ssrc < b.ssrc;
return std::tie(a.ssrc, a.unwrapped_sequence_number, a.arrival_time) <
std::tie(b.ssrc, b.unwrapped_sequence_number, b.arrival_time);
});
uint32_t compact_ntp =
CompactNtp(env_.clock().ConvertTimestampToNtpTime(now));

3
modules/remote_bitrate_estimator/congestion_control_feedback_generator_unittest.cc
View File

@ -301,8 +301,7 @@ TEST(CongestionControlFeedbackGeneratorTest,
generator.Process(clock.CurrentTime());
}
// TODO: bugs.webrtc.org/42225697 - Figure out why this test is flaky.
TEST(DISABLED_CongestionControlFeedbackGeneratorTest,
TEST(CongestionControlFeedbackGeneratorTest,
ReportsFirstReceivedPacketArrivalTimeButEcnFromCePacketIfDuplicate) {
MockFunction<void(std::vector<std::unique_ptr<rtcp::RtcpPacket>>)>
rtcp_sender;