api: add transport to RTSP sessions (#2151)

apidocs/openapi.yaml

@@ -482,6 +482,9 @@ components:
           enum: [idle, read, publish]
         path:
           type: string
+        transport:
+          type: string
+          nullable: true
         bytesReceived:
           type: integer
           format: int64

internal/core/api_defs.go

@@ -54,14 +54,22 @@ type apiRTSPConnsList struct {
 	Items     []*apiRTSPConn `json:"items"`
 }
 
+type apiRTMPConnState string
+
+const (
+	apiRTMPConnStateIdle    apiRTMPConnState = "idle"
+	apiRTMPConnStateRead    apiRTMPConnState = "read"
+	apiRTMPConnStatePublish apiRTMPConnState = "publish"
+)
+
 type apiRTMPConn struct {
-	ID            uuid.UUID `json:"id"`
-	Created       time.Time `json:"created"`
-	RemoteAddr    string    `json:"remoteAddr"`
-	State         string    `json:"state"`
-	Path          string    `json:"path"`
-	BytesReceived uint64    `json:"bytesReceived"`
-	BytesSent     uint64    `json:"bytesSent"`
+	ID            uuid.UUID        `json:"id"`
+	Created       time.Time        `json:"created"`
+	RemoteAddr    string           `json:"remoteAddr"`
+	State         apiRTMPConnState `json:"state"`
+	Path          string           `json:"path"`
+	BytesReceived uint64           `json:"bytesReceived"`
+	BytesSent     uint64           `json:"bytesSent"`
 }
 
 type apiRTMPConnsList struct {
@@ -70,14 +78,23 @@ type apiRTMPConnsList struct {
 	Items     []*apiRTMPConn `json:"items"`
 }
 
+type apiRTSPSessionState string
+
+const (
+	apiRTSPSessionStateIdle    apiRTSPSessionState = "idle"
+	apiRTSPSessionStateRead    apiRTSPSessionState = "read"
+	apiRTSPSessionStatePublish apiRTSPSessionState = "publish"
+)
+
 type apiRTSPSession struct {
-	ID            uuid.UUID `json:"id"`
-	Created       time.Time `json:"created"`
-	RemoteAddr    string    `json:"remoteAddr"`
-	State         string    `json:"state"`
-	Path          string    `json:"path"`
-	BytesReceived uint64    `json:"bytesReceived"`
-	BytesSent     uint64    `json:"bytesSent"`
+	ID            uuid.UUID           `json:"id"`
+	Created       time.Time           `json:"created"`
+	RemoteAddr    string              `json:"remoteAddr"`
+	State         apiRTSPSessionState `json:"state"`
+	Path          string              `json:"path"`
+	Transport     *string             `json:"transport"`
+	BytesReceived uint64              `json:"bytesReceived"`
+	BytesSent     uint64              `json:"bytesSent"`
 }
 
 type apiRTSPSessionsList struct {
@@ -86,33 +103,22 @@ type apiRTSPSessionsList struct {
 	Items     []*apiRTSPSession `json:"items"`
 }
 
-type apiWebRTCSession struct {
-	ID                        uuid.UUID `json:"id"`
-	Created                   time.Time `json:"created"`
-	RemoteAddr                string    `json:"remoteAddr"`
-	PeerConnectionEstablished bool      `json:"peerConnectionEstablished"`
-	LocalCandidate            string    `json:"localCandidate"`
-	RemoteCandidate           string    `json:"remoteCandidate"`
-	State                     string    `json:"state"`
-	Path                      string    `json:"path"`
-	BytesReceived             uint64    `json:"bytesReceived"`
-	BytesSent                 uint64    `json:"bytesSent"`
-}
+type apiSRTConnState string
 
-type apiWebRTCSessionsList struct {
-	ItemCount int                 `json:"itemCount"`
-	PageCount int                 `json:"pageCount"`
-	Items     []*apiWebRTCSession `json:"items"`
-}
+const (
+	apiSRTConnStateIdle    apiSRTConnState = "idle"
+	apiSRTConnStateRead    apiSRTConnState = "read"
+	apiSRTConnStatePublish apiSRTConnState = "publish"
+)
 
 type apiSRTConn struct {
-	ID            uuid.UUID `json:"id"`
-	Created       time.Time `json:"created"`
-	RemoteAddr    string    `json:"remoteAddr"`
-	State         string    `json:"state"`
-	Path          string    `json:"path"`
-	BytesReceived uint64    `json:"bytesReceived"`
-	BytesSent     uint64    `json:"bytesSent"`
+	ID            uuid.UUID       `json:"id"`
+	Created       time.Time       `json:"created"`
+	RemoteAddr    string          `json:"remoteAddr"`
+	State         apiSRTConnState `json:"state"`
+	Path          string          `json:"path"`
+	BytesReceived uint64          `json:"bytesReceived"`
+	BytesSent     uint64          `json:"bytesSent"`
 }
 
 type apiSRTConnsList struct {
@@ -120,3 +126,29 @@ type apiSRTConnsList struct {
 	PageCount int           `json:"pageCount"`
 	Items     []*apiSRTConn `json:"items"`
 }
+
+type apiWebRTCSessionState string
+
+const (
+	apiWebRTCSessionStateRead    apiWebRTCSessionState = "read"
+	apiWebRTCSessionStatePublish apiWebRTCSessionState = "publish"
+)
+
+type apiWebRTCSession struct {
+	ID                        uuid.UUID             `json:"id"`
+	Created                   time.Time             `json:"created"`
+	RemoteAddr                string                `json:"remoteAddr"`
+	PeerConnectionEstablished bool                  `json:"peerConnectionEstablished"`
+	LocalCandidate            string                `json:"localCandidate"`
+	RemoteCandidate           string                `json:"remoteCandidate"`
+	State                     apiWebRTCSessionState `json:"state"`
+	Path                      string                `json:"path"`
+	BytesReceived             uint64                `json:"bytesReceived"`
+	BytesSent                 uint64                `json:"bytesSent"`
+}
+
+type apiWebRTCSessionsList struct {
+	ItemCount int                 `json:"itemCount"`
+	PageCount int                 `json:"pageCount"`
+	Items     []*apiWebRTCSession `json:"items"`
+}

internal/core/metrics.go

@@ -135,7 +135,7 @@ func (m *metrics) onMetrics(ctx *gin.Context) {
 			data, err := m.rtspServer.apiSessionsList()
 			if err == nil && len(data.Items) != 0 {
 				for _, i := range data.Items {
-					tags := "{id=\"" + i.ID.String() + "\",state=\"" + i.State + "\"}"
+					tags := "{id=\"" + i.ID.String() + "\",state=\"" + string(i.State) + "\"}"
 					out += metric("rtsp_sessions", tags, 1)
 					out += metric("rtsp_sessions_bytes_received", tags, int64(i.BytesReceived))
 					out += metric("rtsp_sessions_bytes_sent", tags, int64(i.BytesSent))
@@ -169,7 +169,7 @@ func (m *metrics) onMetrics(ctx *gin.Context) {
 			data, err := m.rtspsServer.apiSessionsList()
 			if err == nil && len(data.Items) != 0 {
 				for _, i := range data.Items {
-					tags := "{id=\"" + i.ID.String() + "\",state=\"" + i.State + "\"}"
+					tags := "{id=\"" + i.ID.String() + "\",state=\"" + string(i.State) + "\"}"
 					out += metric("rtsps_sessions", tags, 1)
 					out += metric("rtsps_sessions_bytes_received", tags, int64(i.BytesReceived))
 					out += metric("rtsps_sessions_bytes_sent", tags, int64(i.BytesSent))
@@ -186,7 +186,7 @@ func (m *metrics) onMetrics(ctx *gin.Context) {
 		data, err := m.rtmpServer.apiConnsList()
 		if err == nil && len(data.Items) != 0 {
 			for _, i := range data.Items {
-				tags := "{id=\"" + i.ID.String() + "\",state=\"" + i.State + "\"}"
+				tags := "{id=\"" + i.ID.String() + "\",state=\"" + string(i.State) + "\"}"
 				out += metric("rtmp_conns", tags, 1)
 				out += metric("rtmp_conns_bytes_received", tags, int64(i.BytesReceived))
 				out += metric("rtmp_conns_bytes_sent", tags, int64(i.BytesSent))

internal/core/path.go

@@ -438,42 +438,10 @@ func (pa *path) runInner() error {
 			pa.confMutex.Unlock()
 
 		case req := <-pa.chSourceStaticSetReady:
-			err := pa.setReady(req.medias, req.generateRTPPackets)
-			if err != nil {
-				req.res <- pathSourceStaticSetReadyRes{err: err}
-			} else {
-				if pa.conf.HasOnDemandStaticSource() {
-					pa.onDemandStaticSourceReadyTimer.Stop()
-					pa.onDemandStaticSourceReadyTimer = newEmptyTimer()
-
-					pa.onDemandStaticSourceScheduleClose()
-
-					for _, req := range pa.describeRequestsOnHold {
-						req.res <- pathDescribeRes{
-							stream: pa.stream,
-						}
-					}
-					pa.describeRequestsOnHold = nil
-
-					for _, req := range pa.readerAddRequestsOnHold {
-						pa.handleAddReaderPost(req)
-					}
-					pa.readerAddRequestsOnHold = nil
-				}
-
-				req.res <- pathSourceStaticSetReadyRes{stream: pa.stream}
-			}
+			pa.handleSourceStaticSetReady(req)
 
 		case req := <-pa.chSourceStaticSetNotReady:
-			pa.setNotReady()
-
-			// send response before calling onDemandStaticSourceStop()
-			// in order to avoid a deadlock due to sourceStatic.stop()
-			close(req.res)
-
-			if pa.conf.HasOnDemandStaticSource() && pa.onDemandStaticSourceState != pathOnDemandStateInitial {
-				pa.onDemandStaticSourceStop()
-			}
+			pa.handleSourceStaticSetNotReady(req)
 
 			if pa.shouldClose() {
 				return fmt.Errorf("not in use")
@@ -685,6 +653,47 @@ func (pa *path) doPublisherRemove() {
 	pa.source = nil
 }
 
+func (pa *path) handleSourceStaticSetReady(req pathSourceStaticSetReadyReq) {
+	err := pa.setReady(req.medias, req.generateRTPPackets)
+	if err != nil {
+		req.res <- pathSourceStaticSetReadyRes{err: err}
+		return
+	}
+
+	if pa.conf.HasOnDemandStaticSource() {
+		pa.onDemandStaticSourceReadyTimer.Stop()
+		pa.onDemandStaticSourceReadyTimer = newEmptyTimer()
+
+		pa.onDemandStaticSourceScheduleClose()
+
+		for _, req := range pa.describeRequestsOnHold {
+			req.res <- pathDescribeRes{
+				stream: pa.stream,
+			}
+		}
+		pa.describeRequestsOnHold = nil
+
+		for _, req := range pa.readerAddRequestsOnHold {
+			pa.handleAddReaderPost(req)
+		}
+		pa.readerAddRequestsOnHold = nil
+	}
+
+	req.res <- pathSourceStaticSetReadyRes{stream: pa.stream}
+}
+
+func (pa *path) handleSourceStaticSetNotReady(req pathSourceStaticSetNotReadyReq) {
+	pa.setNotReady()
+
+	// send response before calling onDemandStaticSourceStop()
+	// in order to avoid a deadlock due to sourceStatic.stop()
+	close(req.res)
+
+	if pa.conf.HasOnDemandStaticSource() && pa.onDemandStaticSourceState != pathOnDemandStateInitial {
+		pa.onDemandStaticSourceStop()
+	}
+}
+
 func (pa *path) handleDescribe(req pathDescribeReq) {
 	if _, ok := pa.source.(*sourceRedirect); ok {
 		req.res <- pathDescribeRes{
@@ -779,6 +788,10 @@ func (pa *path) handleStartPublisher(req pathStartPublisherReq) {
 		return
 	}
 
+	req.author.Log(logger.Info, "is publishing to path '%s', %s",
+		pa.name,
+		sourceMediaInfo(req.medias))
+
 	if pa.conf.HasOnDemandPublisher() {
 		pa.onDemandPublisherReadyTimer.Stop()
 		pa.onDemandPublisherReadyTimer = newEmptyTimer()

internal/core/rtmp_conn.go

@@ -696,10 +696,6 @@ func (c *rtmpConn) runPublish(conn *rtmp.Conn, u *url.URL) error {
 		return rres.err
 	}
 
-	c.Log(logger.Info, "is publishing to path '%s', %s",
-		res.path.name,
-		sourceMediaInfo(medias))
-
 	stream = rres.stream
 
 	// disable write deadline to allow outgoing acknowledges
@@ -748,16 +744,16 @@ func (c *rtmpConn) apiItem() *apiRTMPConn {
 		ID:         c.uuid,
 		Created:    c.created,
 		RemoteAddr: c.remoteAddr().String(),
-		State: func() string {
+		State: func() apiRTMPConnState {
 			switch c.state {
 			case rtmpConnStateRead:
-				return "read"
+				return apiRTMPConnStateRead
 
 			case rtmpConnStatePublish:
-				return "publish"
+				return apiRTMPConnStatePublish
 
 			default:
-				return "idle"
+				return apiRTMPConnStateIdle
 			}
 		}(),
 		Path:          c.pathName,

internal/core/rtsp_session.go

@@ -45,6 +45,7 @@ type rtspSession struct {
 	onReadCmd *externalcmd.Cmd // read
 	mutex     sync.Mutex
 	state     gortsplib.ServerSessionState
+	transport *gortsplib.Transport
 	pathName  string
 }
 
@@ -293,6 +294,7 @@ func (s *rtspSession) onPlay(_ *gortsplib.ServerHandlerOnPlayCtx) (*base.Respons
 
 		s.mutex.Lock()
 		s.state = gortsplib.ServerSessionStatePlay
+		s.transport = s.session.SetuppedTransport()
 		s.mutex.Unlock()
 	}
 
@@ -303,7 +305,7 @@ func (s *rtspSession) onPlay(_ *gortsplib.ServerHandlerOnPlayCtx) (*base.Respons
 }
 
 // onRecord is called by rtspServer.
-func (s *rtspSession) onRecord(ctx *gortsplib.ServerHandlerOnRecordCtx) (*base.Response, error) {
+func (s *rtspSession) onRecord(_ *gortsplib.ServerHandlerOnRecordCtx) (*base.Response, error) {
 	res := s.path.startPublisher(pathStartPublisherReq{
 		author:             s,
 		medias:             s.session.AnnouncedMedias(),
@@ -315,11 +317,6 @@ func (s *rtspSession) onRecord(ctx *gortsplib.ServerHandlerOnRecordCtx) (*base.R
 		}, res.err
 	}
 
-	s.Log(logger.Info, "is publishing to path '%s', with %s, %s",
-		s.path.name,
-		s.session.SetuppedTransport(),
-		sourceMediaInfo(s.session.AnnouncedMedias()))
-
 	s.stream = res.stream
 
 	for _, medi := range s.session.AnnouncedMedias() {
@@ -327,7 +324,7 @@ func (s *rtspSession) onRecord(ctx *gortsplib.ServerHandlerOnRecordCtx) (*base.R
 			cmedi := medi
 			cforma := forma
 
-			ctx.Session.OnPacketRTP(cmedi, cforma, func(pkt *rtp.Packet) {
+			s.session.OnPacketRTP(cmedi, cforma, func(pkt *rtp.Packet) {
 				res.stream.WriteRTPPacket(cmedi, cforma, pkt, time.Now())
 			})
 		}
@@ -335,6 +332,7 @@ func (s *rtspSession) onRecord(ctx *gortsplib.ServerHandlerOnRecordCtx) (*base.R
 
 	s.mutex.Lock()
 	s.state = gortsplib.ServerSessionStateRecord
+	s.transport = s.session.SetuppedTransport()
 	s.mutex.Unlock()
 
 	return &base.Response{
@@ -404,19 +402,26 @@ func (s *rtspSession) apiItem() *apiRTSPSession {
 		ID:         s.uuid,
 		Created:    s.created,
 		RemoteAddr: s.remoteAddr().String(),
-		State: func() string {
+		State: func() apiRTSPSessionState {
 			switch s.state {
 			case gortsplib.ServerSessionStatePrePlay,
 				gortsplib.ServerSessionStatePlay:
-				return "read"
+				return apiRTSPSessionStateRead
 
 			case gortsplib.ServerSessionStatePreRecord,
 				gortsplib.ServerSessionStateRecord:
-				return "publish"
+				return apiRTSPSessionStatePublish
+			}
+			return apiRTSPSessionStateIdle
+		}(),
+		Path: s.pathName,
+		Transport: func() *string {
+			if s.transport == nil {
+				return nil
 			}
-			return "idle"
+			v := s.transport.String()
+			return &v
 		}(),
-		Path:          s.pathName,
 		BytesReceived: s.session.BytesReceived(),
 		BytesSent:     s.session.BytesSent(),
 	}

internal/core/srt_conn.go

@@ -376,10 +376,6 @@ func (c *srtConn) runPublishReader(sconn srt.Conn, path *path) error {
 		return rres.err
 	}
 
-	c.Log(logger.Info, "is publishing to path '%s', %s",
-		path.name,
-		sourceMediaInfo(medias))
-
 	stream = rres.stream
 
 	for {
@@ -830,16 +826,16 @@ func (c *srtConn) apiItem() *apiSRTConn {
 		ID:         c.uuid,
 		Created:    c.created,
 		RemoteAddr: c.connReq.RemoteAddr().String(),
-		State: func() string {
+		State: func() apiSRTConnState {
 			switch c.state {
 			case srtConnStateRead:
-				return "read"
+				return apiSRTConnStateRead
 
 			case srtConnStatePublish:
-				return "publish"
+				return apiSRTConnStatePublish
 
 			default:
-				return "idle"
+				return apiSRTConnStateIdle
 			}
 		}(),
 		Path:          c.pathName,

internal/core/webrtc_session.go

@@ -402,10 +402,6 @@ func (s *webRTCSession) runPublish() (int, error) {
 		return 0, rres.err
 	}
 
-	s.Log(logger.Info, "is publishing to path '%s', %s",
-		res.path.name,
-		sourceMediaInfo(medias))
-
 	for _, track := range tracks {
 		track.start(rres.stream)
 	}
@@ -636,11 +632,11 @@ func (s *webRTCSession) apiItem() *apiWebRTCSession {
 		PeerConnectionEstablished: peerConnectionEstablished,
 		LocalCandidate:            localCandidate,
 		RemoteCandidate:           remoteCandidate,
-		State: func() string {
+		State: func() apiWebRTCSessionState {
 			if s.req.publish {
-				return "publish"
+				return apiWebRTCSessionStatePublish
 			}
-			return "read"
+			return apiWebRTCSessionStateRead
 		}(),
 		Path:          s.req.pathName,
 		BytesReceived: bytesReceived,