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Implement -udp command-line flag.

This commit is contained in:
Juliusz Chroboczek 2021-04-29 20:51:44 +02:00
parent 3e09c0ab29
commit b80e515eb0
2 changed files with 35 additions and 0 deletions

View file

@ -45,6 +45,8 @@ func main() {
"store mutex profile in `file`")
flag.StringVar(&udpRange, "udp-range", "",
"UDP port `range`")
flag.StringVar(&group.UDPAddr, "udp", "",
"UDP `address:port` (default dynamic)")
flag.BoolVar(&group.UseMDNS, "mdns", false, "gather mDNS addresses")
flag.BoolVar(&ice.ICERelayOnly, "relay-only", false,
"require use of TURN relays for all media traffic")

View file

@ -4,6 +4,7 @@ import (
"encoding/json"
"errors"
"log"
"net"
"os"
"path"
"path/filepath"
@ -21,6 +22,10 @@ var Directory string
var UseMDNS bool
var UDPMin, UDPMax uint16
var UDPAddr string
var udpListenerMu sync.Mutex
var udpListener *net.UDPConn
var ErrNotAuthorised = errors.New("not authorised")
type UserError string
@ -333,6 +338,14 @@ func APIFromCodecs(codecs []webrtc.RTPCodecParameters) (*webrtc.API, error) {
webrtc.RTPHeaderExtensionCapability{sdp.SDESRTPStreamIDURI},
webrtc.RTPCodecTypeVideo)
listener, err := getUDPListener()
if err != nil {
return nil, err
}
if listener != nil {
s.SetICEUDPMux(webrtc.NewICEUDPMux(nil, listener))
}
return webrtc.NewAPI(
webrtc.WithSettingEngine(s),
webrtc.WithMediaEngine(&m),
@ -356,6 +369,26 @@ func APIFromNames(names []string) (*webrtc.API, error) {
return APIFromCodecs(codecs)
}
func getUDPListener() (*net.UDPConn, error) {
if UDPAddr == "" {
return nil, nil
}
udpListenerMu.Lock()
defer udpListenerMu.Unlock()
if udpListener == nil {
addr, err := net.ResolveUDPAddr("udp", UDPAddr)
if err != nil {
return nil, err
}
udpListener, err = net.ListenUDP("udp", addr)
if err != nil {
udpListener = nil
return nil, err
}
}
return udpListener, nil
}
func Add(name string, desc *Description) (*Group, error) {
g, notify, err := add(name, desc)
for _, c := range notify {