ghostream/stream/srt/srt.go

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package srt
import (
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"gitlab.crans.org/nounous/ghostream/stream/multicast"
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"log"
"net"
"strconv"
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"github.com/haivision/srtgo"
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"github.com/pion/rtp"
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)
// Options holds web package configuration
type Options struct {
ListenAddress string
MaxClients int
}
// Split host and port from listen address
func splitHostPort(hostport string) (string, uint16) {
host, portS, err := net.SplitHostPort(hostport)
if err != nil {
log.Fatalf("Failed to split host and port from %s", hostport)
}
if host == "" {
host = "0.0.0.0"
}
port64, err := strconv.ParseUint(portS, 10, 16)
if err != nil {
log.Fatalf("Port is not a integer: %s", err)
}
return host, uint16(port64)
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}
// Serve SRT server
func Serve(cfg *Options) {
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options := make(map[string]string)
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options["transtype"] = "live"
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log.Printf("SRT server listening on %s", cfg.ListenAddress)
host, port := splitHostPort(cfg.ListenAddress)
sck := srtgo.NewSrtSocket(host, uint16(port), options)
sck.Listen(cfg.MaxClients)
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for {
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s, err := sck.Accept()
if err != nil {
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log.Println("Error occurred while accepting request:", err)
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continue
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}
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multicast.RegisterStream("demo") // FIXME Replace with real stream key
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buff := make([]byte, 2048)
n, err := s.Read(buff, 10000)
if err != nil {
log.Println("Error occurred while reading SRT socket:", err)
break
}
if n == 0 {
// End of stream
multicast.CloseConnection("demo")
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break
}
multicast.SendPacket("demo", buff[:n])
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// Unmarshal the incoming packet
packet := &rtp.Packet{}
if err = packet.Unmarshal(buff[:n]); err != nil {
log.Println("Error occured while unmarshaling SRT:", err)
break
}
// videoTrack, err := peerConnection.NewTrack(payloadType, packet.SSRC, "video", "pion")
// Read RTP packets forever and send them to the WebRTC Client
for {
n, err := s.Read(buff, 10000)
if err != nil {
log.Println("Error occured while reading SRT socket:", err)
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multicast.CloseConnection("demo")
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break
}
multicast.SendPacket("demo", buff[:n])
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log.Printf("Received %d bytes", n)
packet := &rtp.Packet{}
if err := packet.Unmarshal(buff[:n]); err != nil {
panic(err)
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}
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payloadType := uint8(22) // FIXME put vp8 payload
packet.Header.PayloadType = payloadType
//err := videoTrack.WriteRTP(packet)
}
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}
}