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From: Nico Grunbaum <na-g@nostrum.com>
Date: Mon, 26 Jul 2021 22:51:00 -0700
Subject: Bug 1654112 - fix timestamp issues with RTP sources; r=mjf
Differential Revision: https://phabricator.services.mozilla.com/D120930
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/de8c14e4972f717bf937b6f2fffcd08c35e21ced
---
modules/rtp_rtcp/source/source_tracker.cc | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/modules/rtp_rtcp/source/source_tracker.cc b/modules/rtp_rtcp/source/source_tracker.cc
index 51e8f1cd38..b54f6cacf8 100644
--- a/modules/rtp_rtcp/source/source_tracker.cc
+++ b/modules/rtp_rtcp/source/source_tracker.cc
@@ -47,7 +47,8 @@ void SourceTracker::OnFrameDeliveredInternal(
SourceKey key(RtpSourceType::CSRC, csrc);
SourceEntry& entry = UpdateEntry(key);
- entry.timestamp = now;
+ const auto packet_time = packet_info.receive_time();
+ entry.timestamp = packet_time.ms() ? packet_time : now;
entry.audio_level = packet_info.audio_level();
entry.absolute_capture_time = packet_info.absolute_capture_time();
entry.local_capture_clock_offset =
@@ -86,6 +87,10 @@ std::vector<RtpSource> SourceTracker::GetSources() const {
.local_capture_clock_offset = entry.local_capture_clock_offset});
}
+ std::sort(sources.begin(), sources.end(), [](const auto &a, const auto &b){
+ return a.timestamp().ms() > b.timestamp().ms();
+ });
+
return sources;
}
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