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Code Issues Releases Wiki Activity

RTC: Support UnifiedPlan

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This commit is contained in:
winlin 2020-08-21 18:08:54 +08:00
parent d66d100107
commit aaebecbcc9
6 changed files with 32 additions and 16 deletions
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23
trunk/src/app/srs_app_rtc_conn.cpp
View file

@ -1550,7 +1550,7 @@ srs_error_t SrsRtcConnection::add_publisher(SrsRequest* req, const SrsSdp& remot
return srs_error_wrap(err, "publish negotiate");
}
if ((err = generate_publish_local_sdp(req, local_sdp, stream_desc)) != srs_success) {
if ((err = generate_publish_local_sdp(req, local_sdp, stream_desc, remote_sdp.is_unified())) != srs_success) {
return srs_error_wrap(err, "generate local sdp");
}
@ -1613,7 +1613,7 @@ srs_error_t SrsRtcConnection::add_player(SrsRequest* req, const SrsSdp& remote_s
++it;
}
if ((err = generate_play_local_sdp(req, local_sdp, stream_desc)) != srs_success) {
if ((err = generate_play_local_sdp(req, local_sdp, stream_desc, remote_sdp.is_unified())) != srs_success) {
return srs_error_wrap(err, "generate local sdp");
}
@ -1624,7 +1624,7 @@ srs_error_t SrsRtcConnection::add_player(SrsRequest* req, const SrsSdp& remote_s
return err;
}
srs_error_t SrsRtcConnection::add_player2(SrsRequest* req, SrsSdp& local_sdp)
srs_error_t SrsRtcConnection::add_player2(SrsRequest* req, bool unified_plan, SrsSdp& local_sdp)
{
srs_error_t err = srs_success;
@ -1660,7 +1660,7 @@ srs_error_t SrsRtcConnection::add_player2(SrsRequest* req, SrsSdp& local_sdp)
++it;
}
if ((err = generate_play_local_sdp(req, local_sdp, stream_desc)) != srs_success) {
if ((err = generate_play_local_sdp(req, local_sdp, stream_desc, unified_plan)) != srs_success) {
return srs_error_wrap(err, "generate local sdp");
}
@ -2571,7 +2571,7 @@ srs_error_t SrsRtcConnection::negotiate_publish_capability(SrsRequest* req, cons
return err;
}
srs_error_t SrsRtcConnection::generate_publish_local_sdp(SrsRequest* req, SrsSdp& local_sdp, SrsRtcStreamDescription* stream_desc)
srs_error_t SrsRtcConnection::generate_publish_local_sdp(SrsRequest* req, SrsSdp& local_sdp, SrsRtcStreamDescription* stream_desc, bool unified_plan)
{
srs_error_t err = srs_success;
@ -2667,9 +2667,11 @@ srs_error_t SrsRtcConnection::generate_publish_local_sdp(SrsRequest* req, SrsSdp
local_media_desc.payload_types_.push_back(payload->generate_media_payload_type());
}
// only need media desc info, not ssrc info;
if(!unified_plan) {
// For PlanB, only need media desc info, not ssrc info;
break;
}
}
return err;
}
@ -2896,7 +2898,7 @@ void video_track_generate_play_offer(SrsRtcTrackDescription* track, SrsSdp& loca
}
}
srs_error_t SrsRtcConnection::generate_play_local_sdp(SrsRequest* req, SrsSdp& local_sdp, SrsRtcStreamDescription* stream_desc)
srs_error_t SrsRtcConnection::generate_play_local_sdp(SrsRequest* req, SrsSdp& local_sdp, SrsRtcStreamDescription* stream_desc, bool unified_plan)
{
srs_error_t err = srs_success;
@ -2985,10 +2987,15 @@ srs_error_t SrsRtcConnection::generate_play_local_sdp(SrsRequest* req, SrsSdp& l
for (int i = 0; i < (int)stream_desc->video_track_descs_.size(); ++i) {
SrsRtcTrackDescription* track = stream_desc->video_track_descs_[i];
// for plan b, we only add one m=
if (!unified_plan) {
// for plan b, we only add one m= for video track.
if (i == 0) {
video_track_generate_play_offer(track, local_sdp);
}
} else {
// unified plan SDP, generate a m= for each video track.
video_track_generate_play_offer(track, local_sdp);
}
SrsMediaDesc& local_media_desc = local_sdp.media_descs_.back();
local_media_desc.ssrc_infos_.push_back(SrsSSRCInfo(track->ssrc_, cname, track->msid_, track->id_));

6
trunk/src/app/srs_app_rtc_conn.hpp
View file

@ -439,7 +439,7 @@ public:
srs_error_t add_publisher(SrsRequest* request, const SrsSdp& remote_sdp, SrsSdp& local_sdp);
srs_error_t add_player(SrsRequest* request, const SrsSdp& remote_sdp, SrsSdp& local_sdp);
// server send offer sdp to client, local sdp derivate from source stream desc.
srs_error_t add_player2(SrsRequest* request, SrsSdp& local_sdp);
srs_error_t add_player2(SrsRequest* request, bool unified_plan, SrsSdp& local_sdp);
public:
// Before initialize, user must set the local SDP, which is used to inititlize DTLS.
srs_error_t initialize(SrsRequest* r, bool dtls, bool srtp, std::string username);
@ -483,13 +483,13 @@ private:
srs_error_t on_binding_request(SrsStunPacket* r);
// publish media capabilitiy negotiate
srs_error_t negotiate_publish_capability(SrsRequest* req, const SrsSdp& remote_sdp, SrsRtcStreamDescription* stream_desc);
srs_error_t generate_publish_local_sdp(SrsRequest* req, SrsSdp& local_sdp, SrsRtcStreamDescription* stream_desc);
srs_error_t generate_publish_local_sdp(SrsRequest* req, SrsSdp& local_sdp, SrsRtcStreamDescription* stream_desc, bool unified_plan);
// play media capabilitiy negotiate
//TODO: Use StreamDescription to negotiate and remove first negotiate_play_capability function
srs_error_t negotiate_play_capability(SrsRequest* req, const SrsSdp& remote_sdp, std::map<uint32_t, SrsRtcTrackDescription*>& sub_relations);
srs_error_t negotiate_play_capability(SrsRequest* req, SrsRtcStreamDescription* req_stream_desc, std::map<uint32_t, SrsRtcTrackDescription*>& sub_relations);
srs_error_t fetch_source_capability(SrsRequest* req, std::map<uint32_t, SrsRtcTrackDescription*>& sub_relations);
srs_error_t generate_play_local_sdp(SrsRequest* req, SrsSdp& local_sdp, SrsRtcStreamDescription* stream_desc);
srs_error_t generate_play_local_sdp(SrsRequest* req, SrsSdp& local_sdp, SrsRtcStreamDescription* stream_desc, bool unified_plan);
srs_error_t create_player(SrsRequest* request, std::map<uint32_t, SrsRtcTrackDescription*> sub_relations);
srs_error_t create_publisher(SrsRequest* request, SrsRtcStreamDescription* stream_desc);
};

7
trunk/src/app/srs_app_rtc_sdp.cpp
View file

@ -1062,3 +1062,10 @@ srs_error_t SrsSdp::parse_media_description(const std::string& content)
return err;
}
bool SrsSdp::is_unified() const
{
// TODO: FIXME: Maybe we should consider other situations.
return media_descs_.size() > 2;
}

2
trunk/src/app/srs_app_rtc_sdp.hpp
View file

@ -246,6 +246,8 @@ public:
// m-line, media sessions
std::vector<SrsMediaDesc> media_descs_;
bool is_unified() const;
};
#endif

4
trunk/src/app/srs_app_rtc_server.cpp
View file

@ -513,7 +513,7 @@ srs_error_t SrsRtcServer::do_create_session(
return err;
}
srs_error_t SrsRtcServer::create_session2(SrsRequest* req, SrsSdp& local_sdp, const std::string& mock_eip, SrsRtcConnection** psession)
srs_error_t SrsRtcServer::create_session2(SrsRequest* req, SrsSdp& local_sdp, const std::string& mock_eip, bool unified_plan, SrsRtcConnection** psession)
{
srs_error_t err = srs_success;
@ -525,7 +525,7 @@ srs_error_t SrsRtcServer::create_session2(SrsRequest* req, SrsSdp& local_sdp, co
SrsRtcConnection* session = new SrsRtcConnection(this, cid);
// first add player for negotiate local sdp media info
if ((err = session->add_player2(req, local_sdp)) != srs_success) {
if ((err = session->add_player2(req, unified_plan, local_sdp)) != srs_success) {
srs_freep(session);
return srs_error_wrap(err, "add player2");
}

2
trunk/src/app/srs_app_rtc_server.hpp
View file

@ -126,7 +126,7 @@ private:
);
public:
// We start offering, create_session2 to generate offer, setup_session2 to handle answer.
srs_error_t create_session2(SrsRequest* req, SrsSdp& local_sdp, const std::string& mock_eip, SrsRtcConnection** psession);
srs_error_t create_session2(SrsRequest* req, SrsSdp& local_sdp, const std::string& mock_eip, bool unified_plan, SrsRtcConnection** psession);
srs_error_t setup_session2(SrsRtcConnection* session, SrsRequest* req, const SrsSdp& remote_sdp);
// Destroy the session from server.
void destroy(SrsRtcConnection* session);