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video_rtp_session: skip packets on sender restart

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When using nvenc and the media sender gets restarted, the peer's srtp
decryption breaks and only gets set up correctly again after a pause and
play.

This issue was traced back to the RTP sequence numbers. Skipping a few
numbers before reinitializing the sender works.

Change-Id: Ic93f1368fc7eb01b3c57341f31d3832c9f2f2c1f
This commit is contained in:
philippegorley
2019-08-16 16:06:35 -04:00
committed by Adrien Béraud
parent a538de38da
commit a20db61e18
1 changed files with 1 additions and 1 deletions
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2
src/media/video/video_rtp_session.cpp
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@ -116,7 +116,7 @@ void VideoRtpSession::startSender()
// be sure to not send any packets before saving last RTP seq value
socketPair_->stopSendOp();
if (sender_)
initSeqVal_ = sender_->getLastSeqValue() + 1;
initSeqVal_ = sender_->getLastSeqValue() + 10; // Skip a few sequences to make nvenc happy on a sender restart
try {
sender_.reset();
socketPair_->stopSendOp(false);