hls muxer: when hlsAlwaysRemux is on, automatically recreate muxers in

case of errors

internal/core/hls_muxer.go

@@ -112,8 +112,8 @@ type hlsMuxerParent interface {
 
 type hlsMuxer struct {
 	name                      string
+	remoteAddr                string
 	externalAuthenticationURL string
-	hlsAlwaysRemux            bool
 	hlsVariant                conf.HLSVariant
 	hlsSegmentCount           int
 	hlsSegmentDuration        conf.StringDuration
@@ -143,7 +143,6 @@ func newHLSMuxer(
 	name string,
 	remoteAddr string,
 	externalAuthenticationURL string,
-	hlsAlwaysRemux bool,
 	hlsVariant conf.HLSVariant,
 	hlsSegmentCount int,
 	hlsSegmentDuration conf.StringDuration,
@@ -160,8 +159,8 @@ func newHLSMuxer(
 
 	m := &hlsMuxer{
 		name:                      name,
+		remoteAddr:                remoteAddr,
 		externalAuthenticationURL: externalAuthenticationURL,
-		hlsAlwaysRemux:            hlsAlwaysRemux,
 		hlsVariant:                hlsVariant,
 		hlsSegmentCount:           hlsSegmentCount,
 		hlsSegmentDuration:        hlsSegmentDuration,
@@ -398,7 +397,7 @@ func (m *hlsMuxer) runInner(innerCtx context.Context, innerReady chan struct{})
 		select {
 		case <-closeCheckTicker.C:
 			t := time.Unix(atomic.LoadInt64(m.lastRequestTime), 0)
-			if !m.hlsAlwaysRemux && time.Since(t) >= closeAfterInactivity {
+			if m.remoteAddr != "" && time.Since(t) >= closeAfterInactivity {
 				m.ringBuffer.Close()
 				<-writerDone
 				return fmt.Errorf("not used anymore")

internal/core/hls_server.go

@@ -76,10 +76,11 @@ type hlsServer struct {
 	muxers    map[string]*hlsMuxer
 
 	// in
-	pathSourceReady chan *path
-	request         chan *hlsMuxerRequest
-	muxerClose      chan *hlsMuxer
-	apiMuxersList   chan hlsServerAPIMuxersListReq
+	pathSourceReady    chan *path
+	pathSourceNotReady chan *path
+	request            chan *hlsMuxerRequest
+	muxerClose         chan *hlsMuxer
+	apiMuxersList      chan hlsServerAPIMuxersListReq
 }
 
 func newHLSServer(
@@ -142,6 +143,7 @@ func newHLSServer(
 		tlsConfig:                 tlsConfig,
 		muxers:                    make(map[string]*hlsMuxer),
 		pathSourceReady:           make(chan *path),
+		pathSourceNotReady:        make(chan *path),
 		request:                   make(chan *hlsMuxerRequest),
 		muxerClose:                make(chan *hlsMuxer),
 		apiMuxersList:             make(chan hlsServerAPIMuxersListReq),
@@ -204,6 +206,15 @@ outer:
 				s.findOrCreateMuxer(pa.Name(), "", nil)
 			}
 
+		case pa := <-s.pathSourceNotReady:
+			if s.hlsAlwaysRemux {
+				c, ok := s.muxers[pa.Name()]
+				if ok {
+					c.close()
+					delete(s.muxers, pa.Name())
+				}
+			}
+
 		case req := <-s.request:
 			s.findOrCreateMuxer(req.dir, req.ctx.ClientIP(), req)
 
@@ -213,6 +224,10 @@ outer:
 			}
 			delete(s.muxers, c.PathName())
 
+			if s.hlsAlwaysRemux && c.remoteAddr == "" {
+				s.findOrCreateMuxer(c.PathName(), "", nil)
+			}
+
 		case req := <-s.apiMuxersList:
 			muxers := make(map[string]*hlsMuxer)
 
@@ -331,7 +346,6 @@ func (s *hlsServer) findOrCreateMuxer(pathName string, remoteAddr string, req *h
 			pathName,
 			remoteAddr,
 			s.externalAuthenticationURL,
-			s.hlsAlwaysRemux,
 			s.hlsVariant,
 			s.hlsSegmentCount,
 			s.hlsSegmentDuration,
@@ -358,7 +372,7 @@ func (s *hlsServer) onMuxerClose(c *hlsMuxer) {
 	}
 }
 
-// onPathSourceReady is called by core.
+// onPathSourceReady is called by pathManager.
 func (s *hlsServer) onPathSourceReady(pa *path) {
 	select {
 	case s.pathSourceReady <- pa:
@@ -366,6 +380,14 @@ func (s *hlsServer) onPathSourceReady(pa *path) {
 	}
 }
 
+// onPathSourceNotReady is called by pathManager.
+func (s *hlsServer) onPathSourceNotReady(pa *path) {
+	select {
+	case s.pathSourceNotReady <- pa:
+	case <-s.ctx.Done():
+	}
+}
+
 // onAPIHLSMuxersList is called by api.
 func (s *hlsServer) onAPIHLSMuxersList(req hlsServerAPIMuxersListReq) hlsServerAPIMuxersListRes {
 	req.res = make(chan hlsServerAPIMuxersListRes)

internal/core/path.go

@@ -62,6 +62,7 @@ func (pathErrAuthCritical) Error() string {
 type pathParent interface {
 	log(logger.Level, string, ...interface{})
 	onPathSourceReady(*path)
+	onPathSourceNotReady(*path)
 	onPathClose(*path)
 }
 
@@ -533,7 +534,9 @@ func (pa *path) run() {
 		req.res <- pathReaderSetupPlayRes{err: fmt.Errorf("terminated")}
 	}
 
-	pa.sourceSetNotReady()
+	if pa.sourceReady {
+		pa.sourceSetNotReady()
+	}
 
 	if pa.source != nil {
 		if source, ok := pa.source.(sourceStatic); ok {
@@ -655,8 +658,6 @@ func (pa *path) sourceSetReady(tracks gortsplib.Tracks) {
 	pa.sourceReady = true
 	pa.stream = newStream(tracks)
 
-	pa.parent.onPathSourceReady(pa)
-
 	if pa.conf.RunOnReady != "" {
 		pa.log(logger.Info, "runOnReady command started")
 		pa.onReadyCmd = externalcmd.NewCmd(
@@ -668,9 +669,13 @@ func (pa *path) sourceSetReady(tracks gortsplib.Tracks) {
 				pa.log(logger.Info, "runOnReady command exited with code %d", co)
 			})
 	}
+
+	pa.parent.onPathSourceReady(pa)
 }
 
 func (pa *path) sourceSetNotReady() {
+	pa.parent.onPathSourceNotReady(pa)
+
 	for r := range pa.readers {
 		pa.doReaderRemove(r)
 		r.close()

internal/core/path_manager.go

@@ -11,7 +11,8 @@ import (
 )
 
 type pathManagerHLSServer interface {
-	onPathSourceReady(pa *path)
+	onPathSourceReady(*path)
+	onPathSourceNotReady(*path)
 }
 
 type pathManagerParent interface {
@@ -35,14 +36,15 @@ type pathManager struct {
 	paths     map[string]*path
 
 	// in
-	confReload        chan map[string]*conf.PathConf
-	pathClose         chan *path
-	pathSourceReady   chan *path
-	describe          chan pathDescribeReq
-	readerSetupPlay   chan pathReaderSetupPlayReq
-	publisherAnnounce chan pathPublisherAnnounceReq
-	hlsServerSet      chan pathManagerHLSServer
-	apiPathsList      chan pathAPIPathsListReq
+	confReload         chan map[string]*conf.PathConf
+	pathClose          chan *path
+	pathSourceReady    chan *path
+	pathSourceNotReady chan *path
+	describe           chan pathDescribeReq
+	readerSetupPlay    chan pathReaderSetupPlayReq
+	publisherAnnounce  chan pathPublisherAnnounceReq
+	hlsServerSet       chan pathManagerHLSServer
+	apiPathsList       chan pathAPIPathsListReq
 }
 
 func newPathManager(
@@ -59,25 +61,26 @@ func newPathManager(
 	ctx, ctxCancel := context.WithCancel(parentCtx)
 
 	pm := &pathManager{
-		rtspAddress:       rtspAddress,
-		readTimeout:       readTimeout,
-		writeTimeout:      writeTimeout,
-		readBufferCount:   readBufferCount,
-		pathConfs:         pathConfs,
-		externalCmdPool:   externalCmdPool,
-		metrics:           metrics,
-		parent:            parent,
-		ctx:               ctx,
-		ctxCancel:         ctxCancel,
-		paths:             make(map[string]*path),
-		confReload:        make(chan map[string]*conf.PathConf),
-		pathClose:         make(chan *path),
-		pathSourceReady:   make(chan *path),
-		describe:          make(chan pathDescribeReq),
-		readerSetupPlay:   make(chan pathReaderSetupPlayReq),
-		publisherAnnounce: make(chan pathPublisherAnnounceReq),
-		hlsServerSet:      make(chan pathManagerHLSServer),
-		apiPathsList:      make(chan pathAPIPathsListReq),
+		rtspAddress:        rtspAddress,
+		readTimeout:        readTimeout,
+		writeTimeout:       writeTimeout,
+		readBufferCount:    readBufferCount,
+		pathConfs:          pathConfs,
+		externalCmdPool:    externalCmdPool,
+		metrics:            metrics,
+		parent:             parent,
+		ctx:                ctx,
+		ctxCancel:          ctxCancel,
+		paths:              make(map[string]*path),
+		confReload:         make(chan map[string]*conf.PathConf),
+		pathClose:          make(chan *path),
+		pathSourceReady:    make(chan *path),
+		pathSourceNotReady: make(chan *path),
+		describe:           make(chan pathDescribeReq),
+		readerSetupPlay:    make(chan pathReaderSetupPlayReq),
+		publisherAnnounce:  make(chan pathPublisherAnnounceReq),
+		hlsServerSet:       make(chan pathManagerHLSServer),
+		apiPathsList:       make(chan pathAPIPathsListReq),
 	}
 
 	for pathConfName, pathConf := range pm.pathConfs {
@@ -165,6 +168,11 @@ outer:
 				pm.hlsServer.onPathSourceReady(pa)
 			}
 
+		case pa := <-pm.pathSourceNotReady:
+			if pm.hlsServer != nil {
+				pm.hlsServer.onPathSourceNotReady(pa)
+			}
+
 		case req := <-pm.describe:
 			pathConfName, pathConf, pathMatches, err := pm.findPathConf(req.pathName)
 			if err != nil {
@@ -323,6 +331,14 @@ func (pm *pathManager) onPathSourceReady(pa *path) {
 	}
 }
 
+// onPathSourceNotReady is called by path.
+func (pm *pathManager) onPathSourceNotReady(pa *path) {
+	select {
+	case pm.pathSourceNotReady <- pa:
+	case <-pm.ctx.Done():
+	}
+}
+
 // onPathClose is called by path.
 func (pm *pathManager) onPathClose(pa *path) {
 	select {