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rtc answer sdp存在多个ssrc时，确保最后一个不为空

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This commit is contained in:
ziyue 2021-10-14 15:10:55 +08:00
parent 043c1bab72
commit aaecd74080
1 changed files with 7 additions and 6 deletions
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13
webrtc/WebRtcTransport.cpp
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@ -532,15 +532,16 @@ void WebRtcTransportImp::onCheckAnswer(RtcSession &sdp) {
}
//添加answer sdp的ssrc信息
m.rtp_rtx_ssrc.emplace_back();
m.rtp_rtx_ssrc[0].ssrc = _play_src->getSsrc(m.type);
m.rtp_rtx_ssrc[0].cname = RTP_CNAME;
m.rtp_rtx_ssrc[0].label = RTP_LABEL;
m.rtp_rtx_ssrc[0].mslabel = RTP_MSLABEL;
m.rtp_rtx_ssrc[0].msid = RTP_MSID;
auto &ssrc = m.rtp_rtx_ssrc.back();
ssrc.ssrc = _play_src->getSsrc(m.type);
ssrc.cname = RTP_CNAME;
ssrc.label = RTP_LABEL;
ssrc.mslabel = RTP_MSLABEL;
ssrc.msid = RTP_MSID;
if (m.getRelatedRtxPlan(m.plan[0].pt)) {
//rtx ssrc
m.rtp_rtx_ssrc[0].rtx_ssrc = m.rtp_rtx_ssrc[0].ssrc + RTX_SSRC_OFFSET;
ssrc.rtx_ssrc = ssrc.ssrc + RTX_SSRC_OFFSET;
}
}
}