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完善sdp对ssrc的处理

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xia-chu
2021-05-08 18:39:35 +08:00
parent 26762b6a6f
commit e81d91988d
4 changed files with 130 additions and 109 deletions
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19
webrtc/WebRtcTransport.cpp
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@@ -401,7 +401,7 @@ void WebRtcTransportImp::onStartWebRTC() {
}
//获取offer端rtp的ssrc和pt相关信息
auto &ref = _rtp_info_pt[plan.pt];
_rtp_info_ssrc[m.rtp_ssrc.ssrc] = &ref;
_rtp_info_ssrc[m.rtp_rtx_ssrc[0].ssrc] = &ref;
ref.plan = &plan;
ref.media = &m;
ref.is_common_rtp = getCodecId(plan.codec) != CodecInvalid;
@@ -482,16 +482,17 @@ void WebRtcTransportImp::onCheckSdp(SdpType type, RtcSession &sdp){
continue;
}
//添加answer sdp的ssrc信息
m.rtp_ssrc.ssrc = _play_src->getSsrc(m.type);
m.rtp_ssrc.cname = RTP_CNAME;
m.rtp_ssrc.label = RTP_LABEL;
m.rtp_ssrc.mslabel = RTP_MSLABEL;
m.rtp_ssrc.msid = RTP_MSID;
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;
//todo 先屏蔽rtx，因为chrome报错
if (m.getRelatedRtxPlan(m.plan[0].pt)) {
m.rtx_ssrc = m.rtp_ssrc;
m.rtx_ssrc.ssrc += RTX_SSRC_OFFSET;
m.rtp_rtx_ssrc.emplace_back();
m.rtp_rtx_ssrc[1] = m.rtp_rtx_ssrc[0];
m.rtp_rtx_ssrc[1].ssrc += RTX_SSRC_OFFSET;
}
}
}