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基本完成rtc转rtsp

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This commit is contained in:
xiongziliang
2021-04-02 23:01:58 +08:00
parent dc485c6211
commit 8c460bfcff
4 changed files with 184 additions and 8 deletions
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78
webrtc/Sdp.cpp
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@@ -923,9 +923,74 @@ std::shared_ptr<SdpItem> wrapSdpAttr(SdpItem::Ptr item){
return ret;
}
string RtcSession::toString() const{
static void toRtsp(vector <SdpItem::Ptr> &items) {
for (auto it = items.begin(); it != items.end();) {
switch ((*it)->getKey()[0]) {
case 'v':
case 'o':
case 's':
case 'i':
case 't':
case 'c':
case 'b':{
++it;
break;
}
case 'm': {
auto m = dynamic_pointer_cast<SdpMedia>(*it);
CHECK(m);
m->proto = "RTP/AVP";
++it;
break;
}
case 'a': {
auto attr = dynamic_pointer_cast<SdpAttr>(*it);
CHECK(attr);
if (!strcasecmp(attr->detail->getKey(), "rtpmap")
|| !strcasecmp(attr->detail->getKey(), "fmtp")) {
++it;
break;
}
}
default: {
it = items.erase(it);
break;
}
}
}
}
string RtcSession::toRtspSdp() const{
checkValid();
RtcSessionSdp sdp;
RtcSession copy = *this;
copy.media.clear();
for (auto &m : media) {
switch (m.type) {
case TrackAudio:
case TrackVideo: {
copy.media.emplace_back(m);
copy.media.back().plan.resize(1);
break;
}
default:
continue;
}
}
auto sdp = copy.toRtcSessionSdp();
toRtsp(sdp->items);
int i = 0;
for (auto &m : sdp->medias) {
toRtsp(m.items);
m.items.push_back(wrapSdpAttr(std::make_shared<SdpCommon>("control", string("trackID=") + to_string(i++))));
}
return sdp->toString();
}
RtcSessionSdp::Ptr RtcSession::toRtcSessionSdp() const{
RtcSessionSdp::Ptr ret = std::make_shared<RtcSessionSdp>();
auto &sdp = *ret;
sdp.items.emplace_back(std::make_shared<SdpString<'v'> >(to_string(version)));
sdp.items.emplace_back(std::make_shared<SdpOrigin>(origin));
sdp.items.emplace_back(std::make_shared<SdpString<'s'> >(session_name));
@@ -1076,7 +1141,12 @@ string RtcSession::toString() const{
sdp_media.items.emplace_back(wrapSdpAttr(std::make_shared<SdpAttrCandidate>(cand)));
}
}
return sdp.toString();
return ret;
}
string RtcSession::toString() const{
checkValid();
return toRtcSessionSdp()->toString();
}
string RtcCodecPlan::getFmtp(const char *key) const{
@@ -1146,7 +1216,7 @@ void RtcSession::checkValid() const{
}
}
RtcMedia *RtcSession::getMedia(TrackType type){
const RtcMedia *RtcSession::getMedia(TrackType type) const{
for(auto &m : media){
if(m.type == type){
return &m;