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package main
import (
"log"
"net"
"time"
"github.com/bluenviron/gortsplib/v4"
"github.com/bluenviron/gortsplib/v4/pkg/description"
"github.com/bluenviron/gortsplib/v4/pkg/format"
"github.com/pion/rtp"
)
// This example shows how to
// 1. set additional client options
// 2. generate RTP/H264 frames from a file with GStreamer
// 3. connect to a RTSP server, announce an H264 format
// 4. write the frames to the server
func main() {
// open a listener to receive RTP/H264 frames
pc, err := net.ListenPacket("udp", "localhost:9000")
if err != nil {
panic(err)
}
defer pc.Close()
log.Println("Waiting for a RTP/H264 stream on port 9000 - you can send one with GStreamer:\n" +
"gst-launch-1.0 filesrc location=video.mp4 ! qtdemux ! video/x-h264" +
" ! h264parse config-interval=1 ! rtph264pay ! udpsink host=127.0.0.1 port=9000")
// wait for first packet
buf := make([]byte, 2048)
n, _, err := pc.ReadFrom(buf)
if err != nil {
panic(err)
}
log.Println("stream connected")
// create a stream description that contains a H264 format
desc := &description.Session{
Medias: []*description.Media{{
Type: description.MediaTypeVideo,
Formats: []format.Format{&format.H264{
PayloadTyp: 96,
PacketizationMode: 1,
}},
}},
}
// Client allows to set additional client options
c := &gortsplib.Client{
// transport protocol (UDP or TCP). If nil, it is chosen automatically
Transport: nil,
// timeout of read operations
ReadTimeout: 10 * time.Second,
// timeout of write operations
WriteTimeout: 10 * time.Second,
}
// connect to the server and start recording
err = c.StartRecording("rtsp://localhost:8554/mystream", desc)
if err != nil {
panic(err)
}
defer c.Close()
var pkt rtp.Packet
for {
// parse RTP packet
err = pkt.Unmarshal(buf[:n])
if err != nil {
panic(err)
}
// route RTP packet to the server
err = c.WritePacketRTP(desc.Medias[0], &pkt)
if err != nil {
panic(err)
}
// read another RTP packet from source
n, _, err = pc.ReadFrom(buf)
if err != nil {
panic(err)
}
}
}
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