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确保rtp/rtcp端口号为偶奇数

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This commit is contained in:
xiongziliang
2020-05-12 10:22:21 +08:00
parent f303ab3222
commit 8c46688886
4 changed files with 58 additions and 48 deletions
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27
src/Rtsp/RtspPlayer.cpp
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@@ -214,29 +214,10 @@ void RtspPlayer::handleResDESCRIBE(const Parser& parser) {
void RtspPlayer::createUdpSockIfNecessary(int track_idx){
auto &rtpSockRef = _apRtpSock[track_idx];
auto &rtcpSockRef = _apRtcpSock[track_idx];
if(!rtpSockRef){
rtpSockRef.reset(new Socket(getPoller()));
//rtp随机端口
if (!rtpSockRef->bindUdpSock(0, get_local_ip().data())) {
rtpSockRef.reset();
throw std::runtime_error("open rtp sock failed");
}
}
if(!rtcpSockRef){
rtcpSockRef.reset(new Socket(getPoller()));
//rtcp端口为rtp端口+1，目的是为了兼容某些服务器，其实更推荐随机端口
if (!rtcpSockRef->bindUdpSock(rtpSockRef->get_local_port() + 1, get_local_ip().data())) {
rtcpSockRef.reset();
throw std::runtime_error("open rtcp sock failed");
}
}
if(rtpSockRef->get_local_port() % 2 != 0){
//如果rtp端口不是偶数，那么与rtcp端口互换，目的是兼容一些要求严格的服务器
Socket::Ptr tmp = rtpSockRef;
rtpSockRef = rtcpSockRef;
rtcpSockRef = tmp;
if (!rtpSockRef || !rtcpSockRef) {
auto pr = makeSockPair(getPoller(), get_local_ip());
rtpSockRef = pr.first;
rtcpSockRef = pr.second;
}
}