move trackID into data

internal/core/data.go

@@ -7,6 +7,7 @@ import (
 )
 
 type data struct {
+	trackID      int
 	rtp          *rtp.Packet
 	ptsEqualsDTS bool
 	h264NALUs    [][]byte

internal/core/hls_muxer.go

@@ -105,11 +105,6 @@ type hlsMuxerRequest struct {
 	res  chan hlsMuxerResponse
 }
 
-type hlsMuxerTrackIDDataPair struct {
-	trackID int
-	data    *data
-}
-
 type hlsMuxerPathManager interface {
 	onReaderSetupPlay(req pathReaderSetupPlayReq) pathReaderSetupPlayRes
 }
@@ -333,24 +328,24 @@ func (m *hlsMuxer) runInner(innerCtx context.Context, innerReady chan struct{})
 	go func() {
 		writerDone <- func() error {
 			for {
-				data, ok := m.ringBuffer.Pull()
+				item, ok := m.ringBuffer.Pull()
 				if !ok {
 					return fmt.Errorf("terminated")
 				}
-				pair := data.(hlsMuxerTrackIDDataPair)
+				data := item.(*data)
 
-				if videoTrack != nil && pair.trackID == videoTrackID {
-					if pair.data.h264NALUs == nil {
+				if videoTrack != nil && data.trackID == videoTrackID {
+					if data.h264NALUs == nil {
 						continue
 					}
 
-					err = m.muxer.WriteH264(pair.data.h264PTS, pair.data.h264NALUs)
+					err = m.muxer.WriteH264(data.h264PTS, data.h264NALUs)
 					if err != nil {
 						m.log(logger.Warn, "unable to write segment: %v", err)
 						continue
 					}
-				} else if audioTrack != nil && pair.trackID == audioTrackID {
-					aus, pts, err := aacDecoder.Decode(pair.data.rtp)
+				} else if audioTrack != nil && data.trackID == audioTrackID {
+					aus, pts, err := aacDecoder.Decode(data.rtp)
 					if err != nil {
 						if err != rtpaac.ErrMorePacketsNeeded {
 							m.log(logger.Warn, "unable to decode audio track: %v", err)
@@ -527,8 +522,8 @@ func (m *hlsMuxer) onReaderAccepted() {
 }
 
 // onReaderData implements reader.
-func (m *hlsMuxer) onReaderData(trackID int, data *data) {
-	m.ringBuffer.Push(hlsMuxerTrackIDDataPair{trackID, data})
+func (m *hlsMuxer) onReaderData(data *data) {
+	m.ringBuffer.Push(data)
 }
 
 // onReaderAPIDescribe implements reader.

internal/core/hls_source.go

@@ -150,12 +150,14 @@ func (s *hlsSource) runInner() bool {
 		lastPkt := len(pkts) - 1
 		for i, pkt := range pkts {
 			if i != lastPkt {
-				stream.writeData(videoTrackID, &data{
+				stream.writeData(&data{
+					trackID:      videoTrackID,
 					rtp:          pkt,
 					ptsEqualsDTS: false,
 				})
 			} else {
-				stream.writeData(videoTrackID, &data{
+				stream.writeData(&data{
+					trackID:      videoTrackID,
 					rtp:          pkt,
 					ptsEqualsDTS: h264.IDRPresent(nalus),
 					h264NALUs:    nalus,
@@ -176,7 +178,8 @@ func (s *hlsSource) runInner() bool {
 		}
 
 		for _, pkt := range pkts {
-			stream.writeData(audioTrackID, &data{
+			stream.writeData(&data{
+				trackID:      audioTrackID,
 				rtp:          pkt,
 				ptsEqualsDTS: true,
 			})

internal/core/publisher.go

@@ -1,6 +1,6 @@
 package core
 
-// publisher is an entity that can publish a stream dynamically.
+// publisher is an entity that can publish a stream.
 type publisher interface {
 	source
 	close()

internal/core/reader.go

@@ -4,6 +4,6 @@ package core
 type reader interface {
 	close()
 	onReaderAccepted()
-	onReaderData(int, *data)
+	onReaderData(*data)
 	onReaderAPIDescribe() interface{}
 }

internal/core/rtmp_conn.go

@@ -44,11 +44,6 @@ const (
 	rtmpConnStatePublish
 )
 
-type rtmpConnTrackIDDataPair struct {
-	trackID int
-	data    *data
-}
-
 type rtmpConnPathManager interface {
 	onReaderSetupPlay(req pathReaderSetupPlayReq) pathReaderSetupPlayRes
 	onPublisherAnnounce(req pathPublisherAnnounceReq) pathPublisherAnnounceRes
@@ -331,14 +326,14 @@ func (c *rtmpConn) runRead(ctx context.Context) error {
 	videoFirstIDRFound := false
 
 	for {
-		data, ok := c.ringBuffer.Pull()
+		item, ok := c.ringBuffer.Pull()
 		if !ok {
 			return fmt.Errorf("terminated")
 		}
-		pair := data.(rtmpConnTrackIDDataPair)
+		data := item.(*data)
 
-		if videoTrack != nil && pair.trackID == videoTrackID {
-			if pair.data.h264NALUs == nil {
+		if videoTrack != nil && data.trackID == videoTrackID {
+			if data.h264NALUs == nil {
 				continue
 			}
 
@@ -346,35 +341,35 @@ func (c *rtmpConn) runRead(ctx context.Context) error {
 
 			// wait until we receive an IDR
 			if !videoFirstIDRFound {
-				if !h264.IDRPresent(pair.data.h264NALUs) {
+				if !h264.IDRPresent(data.h264NALUs) {
 					continue
 				}
 
 				videoFirstIDRFound = true
-				videoStartPTS = pair.data.h264PTS
+				videoStartPTS = data.h264PTS
 				videoDTSEst = h264.NewDTSEstimator()
 			}
 
-			data, err := h264.EncodeAVCC(pair.data.h264NALUs)
+			avcc, err := h264.EncodeAVCC(data.h264NALUs)
 			if err != nil {
 				return err
 			}
 
-			pts := pair.data.h264PTS - videoStartPTS
+			pts := data.h264PTS - videoStartPTS
 			dts := videoDTSEst.Feed(pts)
 
 			c.conn.SetWriteDeadline(time.Now().Add(time.Duration(c.writeTimeout)))
 			err = c.conn.WritePacket(av.Packet{
 				Type:  av.H264,
-				Data:  data,
+				Data:  avcc,
 				Time:  dts,
 				CTime: pts - dts,
 			})
 			if err != nil {
 				return err
 			}
-		} else if audioTrack != nil && pair.trackID == audioTrackID {
-			aus, pts, err := aacDecoder.Decode(pair.data.rtp)
+		} else if audioTrack != nil && data.trackID == audioTrackID {
+			aus, pts, err := aacDecoder.Decode(data.rtp)
 			if err != nil {
 				if err != rtpaac.ErrMorePacketsNeeded {
 					c.log(logger.Warn, "unable to decode audio track: %v", err)
@@ -510,12 +505,14 @@ func (c *rtmpConn) runPublish(ctx context.Context) error {
 			lastPkt := len(pkts) - 1
 			for i, pkt := range pkts {
 				if i != lastPkt {
-					rres.stream.writeData(videoTrackID, &data{
+					rres.stream.writeData(&data{
+						trackID:      videoTrackID,
 						rtp:          pkt,
 						ptsEqualsDTS: false,
 					})
 				} else {
-					rres.stream.writeData(videoTrackID, &data{
+					rres.stream.writeData(&data{
+						trackID:      videoTrackID,
 						rtp:          pkt,
 						ptsEqualsDTS: h264.IDRPresent(nalus),
 						h264NALUs:    nalus,
@@ -544,12 +541,14 @@ func (c *rtmpConn) runPublish(ctx context.Context) error {
 			lastPkt := len(pkts) - 1
 			for i, pkt := range pkts {
 				if i != lastPkt {
-					rres.stream.writeData(videoTrackID, &data{
+					rres.stream.writeData(&data{
+						trackID:      videoTrackID,
 						rtp:          pkt,
 						ptsEqualsDTS: false,
 					})
 				} else {
-					rres.stream.writeData(videoTrackID, &data{
+					rres.stream.writeData(&data{
+						trackID:      videoTrackID,
 						rtp:          pkt,
 						ptsEqualsDTS: h264.IDRPresent(nalus),
 						h264NALUs:    nalus,
@@ -569,7 +568,8 @@ func (c *rtmpConn) runPublish(ctx context.Context) error {
 			}
 
 			for _, pkt := range pkts {
-				rres.stream.writeData(audioTrackID, &data{
+				rres.stream.writeData(&data{
+					trackID:      audioTrackID,
 					rtp:          pkt,
 					ptsEqualsDTS: true,
 				})
@@ -630,8 +630,8 @@ func (c *rtmpConn) onReaderAccepted() {
 }
 
 // onReaderData implements reader.
-func (c *rtmpConn) onReaderData(trackID int, data *data) {
-	c.ringBuffer.Push(rtmpConnTrackIDDataPair{trackID, data})
+func (c *rtmpConn) onReaderData(data *data) {
+	c.ringBuffer.Push(data)
 }
 
 // onReaderAPIDescribe implements reader.

internal/core/rtmp_source.go

@@ -194,12 +194,14 @@ func (s *rtmpSource) runInner() bool {
 							lastPkt := len(pkts) - 1
 							for i, pkt := range pkts {
 								if i != lastPkt {
-									res.stream.writeData(videoTrackID, &data{
+									res.stream.writeData(&data{
+										trackID:      videoTrackID,
 										rtp:          pkt,
 										ptsEqualsDTS: false,
 									})
 								} else {
-									res.stream.writeData(videoTrackID, &data{
+									res.stream.writeData(&data{
+										trackID:      videoTrackID,
 										rtp:          pkt,
 										ptsEqualsDTS: h264.IDRPresent(nalus),
 										h264NALUs:    nalus,
@@ -219,7 +221,8 @@ func (s *rtmpSource) runInner() bool {
 							}
 
 							for _, pkt := range pkts {
-								res.stream.writeData(audioTrackID, &data{
+								res.stream.writeData(&data{
+									trackID:      audioTrackID,
 									rtp:          pkt,
 									ptsEqualsDTS: true,
 								})

internal/core/rtsp_session.go

@@ -342,7 +342,7 @@ func (s *rtspSession) onReaderAccepted() {
 }
 
 // onReaderData implements reader.
-func (s *rtspSession) onReaderData(trackID int, data *data) {
+func (s *rtspSession) onReaderData(data *data) {
 	// packets are routed to the session by gortsplib.ServerStream.
 }
 
@@ -393,14 +393,16 @@ func (s *rtspSession) onPublisherAccepted(tracksLen int) {
 // onPacketRTP is called by rtspServer.
 func (s *rtspSession) onPacketRTP(ctx *gortsplib.ServerHandlerOnPacketRTPCtx) {
 	if ctx.H264NALUs != nil {
-		s.stream.writeData(ctx.TrackID, &data{
+		s.stream.writeData(&data{
+			trackID:      ctx.TrackID,
 			rtp:          ctx.Packet,
 			ptsEqualsDTS: ctx.PTSEqualsDTS,
 			h264NALUs:    append([][]byte(nil), ctx.H264NALUs...),
 			h264PTS:      ctx.H264PTS,
 		})
 	} else {
-		s.stream.writeData(ctx.TrackID, &data{
+		s.stream.writeData(&data{
+			trackID:      ctx.TrackID,
 			rtp:          ctx.Packet,
 			ptsEqualsDTS: ctx.PTSEqualsDTS,
 		})

internal/core/rtsp_source.go

@@ -199,14 +199,16 @@ func (s *rtspSource) runInner() bool {
 
 			c.OnPacketRTP = func(ctx *gortsplib.ClientOnPacketRTPCtx) {
 				if ctx.H264NALUs != nil {
-					res.stream.writeData(ctx.TrackID, &data{
+					res.stream.writeData(&data{
+						trackID:      ctx.TrackID,
 						rtp:          ctx.Packet,
 						ptsEqualsDTS: ctx.PTSEqualsDTS,
 						h264NALUs:    append([][]byte(nil), ctx.H264NALUs...),
 						h264PTS:      ctx.H264PTS,
 					})
 				} else {
-					res.stream.writeData(ctx.TrackID, &data{
+					res.stream.writeData(&data{
+						trackID:      ctx.TrackID,
 						rtp:          ctx.Packet,
 						ptsEqualsDTS: ctx.PTSEqualsDTS,
 					})

internal/core/stream.go

@@ -37,12 +37,12 @@ func (m *streamNonRTSPReadersMap) remove(r reader) {
 	delete(m.ma, r)
 }
 
-func (m *streamNonRTSPReadersMap) forwardPacketRTP(trackID int, data *data) {
+func (m *streamNonRTSPReadersMap) forwardPacketRTP(data *data) {
 	m.mutex.RLock()
 	defer m.mutex.RUnlock()
 
 	for c := range m.ma {
-		c.onReaderData(trackID, data)
+		c.onReaderData(data)
 	}
 }
 
@@ -126,16 +126,16 @@ func (s *stream) remuxH264NALUs(h264track *gortsplib.TrackH264, data *data) {
 	data.h264NALUs = filteredNALUs
 }
 
-func (s *stream) writeData(trackID int, data *data) {
-	track := s.rtspStream.Tracks()[trackID]
+func (s *stream) writeData(data *data) {
+	track := s.rtspStream.Tracks()[data.trackID]
 	if h264track, ok := track.(*gortsplib.TrackH264); ok {
 		s.updateH264TrackParameters(h264track, data.h264NALUs)
 		s.remuxH264NALUs(h264track, data)
 	}
 
 	// forward to RTSP readers
-	s.rtspStream.WritePacketRTP(trackID, data.rtp, data.ptsEqualsDTS)
+	s.rtspStream.WritePacketRTP(data.trackID, data.rtp, data.ptsEqualsDTS)
 
 	// forward to non-RTSP readers
-	s.nonRTSPReaders.forwardPacketRTP(trackID, data)
+	s.nonRTSPReaders.forwardPacketRTP(data)
 }