add client-read-pause example

README.md

@@ -24,6 +24,7 @@ Features:
 * [client-read-tcp](examples/client-read-tcp.go)
 * [client-publish-udp](examples/client-publish-udp.go)
 * [client-publish-tcp](examples/client-publish-tcp.go)
+* [client-read-pause](examples/client-read-pause.go)
 
 ## Documentation
 

examples/client-publish-tcp.go

@@ -10,9 +10,10 @@ import (
 	"github.com/aler9/gortsplib/pkg/rtph264"
 )
 
-// This example shows how to generate RTP/H264 frames from a file with Gstreamer,
-// create a RTSP client, connect to a server, announce a H264 track and write
-// the frames with the TCP protocol.
+// This example shows how to
+// * generate RTP/H264 frames from a file with Gstreamer
+// * connect to a RTSP server, announce a H264 track
+// * write the frames with the TCP protocol
 
 func main() {
 	// open a listener to receive RTP/H264 frames

examples/client-publish-udp.go

@@ -10,9 +10,10 @@ import (
 	"github.com/aler9/gortsplib/pkg/rtph264"
 )
 
-// This example shows how to generate RTP/H264 frames from a file with Gstreamer,
-// create a RTSP client, connect to a server, announce a H264 track and write
-// the frames with the UDP protocol.
+// This example shows how to
+// * generate RTP/H264 frames from a file with Gstreamer
+// * connect to a RTSP server, announce a H264 track
+// * write the frames with the UDP protocol
 
 func main() {
 	// open a listener to receive RTP/H264 frames

examples/client-query.go

@@ -9,8 +9,9 @@ import (
 	"github.com/aler9/gortsplib/pkg/base"
 )
 
-// This example shows how to connect to a server and print informations about
-// tracks published on a path.
+// This example shows how to
+// * connect to a RTSP server
+// * query and print informations about tracks published on a path.
 
 func main() {
 	u, err := base.ParseURL("rtsp://myserver/mypath")

examples/client-read-pause.go

@@ -0,0 +1,58 @@
+// +build ignore
+
+package main
+
+import (
+	"fmt"
+
+	"github.com/aler9/gortsplib"
+)
+
+// This example shows how to
+// * connect to a RTSP server
+// * read all tracks with the UDP protocol for 5 seconds
+// * pause for 5 seconds
+// * repeat
+
+func main() {
+	// connect to the server and start reading all tracks
+	conn, err := gortsplib.DialRead("rtsp://localhost:8554/mystream")
+	if err != nil {
+		panic(err)
+	}
+	defer conn.Close()
+
+	for {
+		// read frames from the server
+		readerDone := make(chan struct{})
+		conn.OnFrame(func(id int, typ gortsplib.StreamType, buf []byte, err error) {
+			if err != nil {
+				close(readerDone)
+				return
+			}
+
+			fmt.Printf("frame from track %d, type %v: %v\n", id, typ, buf)
+		})
+
+		// wait
+		time.Sleep(5 * time.Second)
+
+		// pause
+		_, err := conn.Pause()
+		if err != nil {
+			panic(err)
+		}
+
+		// join reader
+		<-readerDone
+
+		// wait
+		time.Sleep(5 * time.Second)
+
+		// play again
+		_, err := conn.Play()
+		if err != nil {
+			panic(err)
+		}
+	}
+}

examples/client-read-tcp.go

@@ -8,8 +8,9 @@ import (
 	"github.com/aler9/gortsplib"
 )
 
-// This example shows how to create a RTSP client, connect to a server and
-// read all tracks with the TCP protocol.
+// This example shows how to
+// * connect to a RTSP server
+// * read all tracks with the TCP protocol
 
 func main() {
 	// connect to the server and start reading all tracks
@@ -23,7 +24,6 @@ func main() {
 	defer conn.Close()
 
 	readerDone := make(chan struct{})
-	defer func() { <-readerDone }()
 
 	// read frames from the server
 	conn.OnFrame(func(id int, typ gortsplib.StreamType, buf []byte, err error) {
@@ -35,4 +35,6 @@ func main() {
 
 		fmt.Printf("frame from track %d, type %v: %v\n", id, typ, buf)
 	})
+
+	<-readerDone
 }

examples/client-read-udp.go

@@ -8,8 +8,9 @@ import (
 	"github.com/aler9/gortsplib"
 )
 
-// This example shows how to create a RTSP client, connect to a server and
-// read all tracks with the UDP protocol.
+// This example shows how to
+// * connect to a RTSP server
+// * read all tracks with the UDP protocol
 
 func main() {
 	// connect to the server and start reading all tracks
@@ -20,7 +21,6 @@ func main() {
 	defer conn.Close()
 
 	readerDone := make(chan struct{})
-	defer func() { <-readerDone }()
 
 	// read frames from the server
 	conn.OnFrame(func(id int, typ gortsplib.StreamType, buf []byte, err error) {
@@ -32,4 +32,6 @@ func main() {
 
 		fmt.Printf("frame from track %d, type %v: %v\n", id, typ, buf)
 	})
+
+	<-readerDone
 }