add TrackPCMU

examples/client-publish-pcmu/main.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"log"
+	"net"
+
+	"github.com/aler9/gortsplib"
+	"github.com/pion/rtp/v2"
+)
+
+// This example shows how to
+// 1. generate RTP/PCMU packets with GStreamer
+// 2. connect to a RTSP server, announce a PCMU track
+// 3. route the packets from GStreamer to the server
+
+func main() {
+	// open a listener to receive RTP/PCMU packets
+	pc, err := net.ListenPacket("udp", "localhost:9000")
+	if err != nil {
+		panic(err)
+	}
+	defer pc.Close()
+
+	log.Println("Waiting for a RTP/PCMU stream on UDP port 9000 - you can send one with GStreamer:\n" +
+		"gst-launch-1.0 audiotestsrc freq=300 ! audioconvert ! audioresample ! audio/x-raw,rate=8000" +
+		" ! mulawenc ! rtppcmupay ! udpsink host=127.0.0.1 port=9000")
+
+	// wait for first packet
+	buf := make([]byte, 2048)
+	_, _, err = pc.ReadFrom(buf)
+	if err != nil {
+		panic(err)
+	}
+	log.Println("stream connected")
+
+	// create a PCMU track
+	track := gortsplib.NewTrackPCMU()
+
+	c := gortsplib.Client{}
+
+	// connect to the server and start publishing the track
+	err = c.StartPublishing("rtsp://localhost:8554/mystream",
+		gortsplib.Tracks{track})
+	if err != nil {
+		panic(err)
+	}
+	defer c.Close()
+
+	buf = make([]byte, 2048)
+	var pkt rtp.Packet
+	for {
+		// read packets from the source
+		n, _, err := pc.ReadFrom(buf)
+		if err != nil {
+			panic(err)
+		}
+
+		// marshal RTP packets
+		err = pkt.Unmarshal(buf[:n])
+		if err != nil {
+			panic(err)
+		}
+
+		// route RTP packets to the server
+		err = c.WritePacketRTP(0, &pkt)
+		if err != nil {
+			panic(err)
+		}
+	}
+}