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Fix #492 SimulcastConsumer cannot switch layers if initial tsReferenc… #1459

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Oct 18, 2024
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9 changes: 4 additions & 5 deletions worker/src/RTC/SimulcastConsumer.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -1574,7 +1574,9 @@ namespace RTC
MS_TRACE();

// If we don't have yet a RTP timestamp reference, set it now.
if (newTargetSpatialLayer != -1 && this->tsReferenceSpatialLayer == -1)
if (
newTargetSpatialLayer != -1 && (this->tsReferenceSpatialLayer == -1 ||
!GetProducerTsReferenceRtpStream()->GetSenderReportNtpMs()))
{
MS_DEBUG_TAG(
simulcast, "using spatial layer %" PRIi16 " as RTP timestamp reference", newTargetSpatialLayer);
Expand Down Expand Up @@ -1646,10 +1648,7 @@ namespace RTC
return (
this->tsReferenceSpatialLayer == -1 ||
spatialLayer == this->tsReferenceSpatialLayer ||
(
GetProducerTsReferenceRtpStream()->GetSenderReportNtpMs() &&
this->producerRtpStreams.at(spatialLayer)->GetSenderReportNtpMs()
)
this->producerRtpStreams.at(spatialLayer)->GetSenderReportNtpMs()
);
// clang-format on
}
Expand Down
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