双向会话时，确保收发ssrc一致

2026-06-16 21:15:57 +08:00 · 2021-10-16 10:51:48 +08:00
parent 85fec6da0b
commit f0e896a5e2
1 changed files with 4 additions and 0 deletions
--- a/webrtc/Sdp.cpp
+++ b/webrtc/Sdp.cpp
@@ -1713,6 +1713,10 @@ RETRY:
            if (answer_media.direction == RtpDirection::invalid) {
                continue;
            }
+            if (answer_media.direction == RtpDirection::sendrecv) {
+                //如果是收发双向，那么我们拷贝offer sdp的ssrc，确保ssrc一致
+                answer_media.rtp_rtx_ssrc = offer_media.rtp_rtx_ssrc;
+            }

            //添加媒体plan
            answer_media.plan.emplace_back(*selected_plan);