Reland of Only compare sequence numbers from the same SSRC in ForwardErrorCorrection. (patchset #1 id:1 of https://codereview.webrtc.org/2919313005/ )
Reason for revert:
Fix RtpStreamReceiver to not recover RTX packets with incorrect SSRC.
Original issue's description:
> Revert of Only compare sequence numbers from the same SSRC in ForwardErrorCorrection. (patchset #5 id:120001 of https://codereview.webrtc.org/2893293003/ )
>
> Reason for revert:
> Breaks fuzzer.
>
> Original issue's description:
> > Only compare sequence numbers from the same SSRC in ForwardErrorCorrection.
> >
> > Prior to this CL, the ForwardErrorCorrection state would be reset whenever
> > the difference in sequence numbers of the last recovered media packet
> > and the new packet (media or FEC) was too large. This comparison did not
> > take into account that FlexFEC uses a different SSRC for the FEC packets,
> > meaning that the the state would be reset very frequently when FlexFEC
> > is used. This should not have led to any major problems, except for a
> > decreased decoding efficiency.
> >
> > This CL verifies that whenever we compare sequence numbers in
> > ForwardErrorCorrection, they do indeed belong to the same SSRC.
> >
> > BUG=webrtc:5654
> >
> > Review-Url: https://codereview.webrtc.org/2893293003
> > Cr-Commit-Position: refs/heads/master@{#18399}
> > Committed: https://chromium.googlesource.com/external/webrtc/+/1476a9d789db03457595cf7dbea7e362972f2a4d
>
> TBR=stefan@webrtc.org,holmer@google.com
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=webrtc:5654
>
> Review-Url: https://codereview.webrtc.org/2919313005
> Cr-Commit-Position: refs/heads/master@{#18446}
> Committed: https://chromium.googlesource.com/external/webrtc/+/92732ecc5ccc81e17c1dea75ecc5e34c7ff6274f
R=stefan@webrtc.org
BUG=webrtc:5654
Review-Url: https://codereview.webrtc.org/2918333002
Cr-Original-Commit-Position: refs/heads/master@{#18827}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: d726a3f48745a01a74509022bd2e2f6a7e548ea7
diff --git a/video/rtp_video_stream_receiver.cc b/video/rtp_video_stream_receiver.cc
index 6a55a3d..6b8ea0f 100644
--- a/video/rtp_video_stream_receiver.cc
+++ b/video/rtp_video_stream_receiver.cc
@@ -100,7 +100,7 @@
this,
&rtp_payload_registry_)),
rtp_receive_statistics_(ReceiveStatistics::Create(clock_)),
- ulpfec_receiver_(UlpfecReceiver::Create(this)),
+ ulpfec_receiver_(UlpfecReceiver::Create(config->rtp.remote_ssrc, this)),
receiving_(false),
restored_packet_in_use_(false),
last_packet_log_ms_(-1),
