You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
382 lines
9.3 KiB
382 lines
9.3 KiB
package webrtc
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"regexp"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/Monibuca/engine/v3"
|
|
"github.com/Monibuca/utils/v3"
|
|
"github.com/Monibuca/utils/v3/codec"
|
|
"github.com/pion/rtcp"
|
|
"github.com/pion/rtp"
|
|
. "github.com/pion/webrtc/v3"
|
|
"github.com/pion/webrtc/v3/pkg/media"
|
|
)
|
|
|
|
var config struct {
|
|
ICEServers []string
|
|
PublicIP []string
|
|
PortMin uint16
|
|
PortMax uint16
|
|
}
|
|
|
|
// }{[]string{
|
|
// "stun:stun.ekiga.net",
|
|
// "stun:stun.ideasip.com",
|
|
// "stun:stun.schlund.de",
|
|
// "stun:stun.stunprotocol.org:3478",
|
|
// "stun:stun.voiparound.com",
|
|
// "stun:stun.voipbuster.com",
|
|
// "stun:stun.voipstunt.com",
|
|
// "stun:stun.voxgratia.org",
|
|
// "stun:stun.services.mozilla.com",
|
|
// "stun:stun.xten.com",
|
|
// "stun:stun.softjoys.com",
|
|
// "stun:stunserver.org",
|
|
// "stun:stun.schlund.de",
|
|
// "stun:stun.rixtelecom.se",
|
|
// "stun:stun.iptel.org",
|
|
// "stun:stun.ideasip.com",
|
|
// "stun:stun.fwdnet.net",
|
|
// "stun:stun.ekiga.net",
|
|
// "stun:stun01.sipphone.com",
|
|
// }}
|
|
|
|
// type udpConn struct {
|
|
// conn *net.UDPConn
|
|
// port int
|
|
// }
|
|
var (
|
|
playWaitList WaitList
|
|
reg_level = regexp.MustCompile("profile-level-id=(4.+f)")
|
|
api *API
|
|
)
|
|
|
|
type WaitList struct {
|
|
m map[string]*WebRTC
|
|
l sync.Mutex
|
|
}
|
|
|
|
func (wl *WaitList) Set(k string, v *WebRTC) {
|
|
wl.l.Lock()
|
|
defer wl.l.Unlock()
|
|
if wl.m == nil {
|
|
wl.m = make(map[string]*WebRTC)
|
|
}
|
|
wl.m[k] = v
|
|
}
|
|
func (wl *WaitList) Get(k string) *WebRTC {
|
|
wl.l.Lock()
|
|
defer wl.l.Unlock()
|
|
defer delete(wl.m, k)
|
|
return wl.m[k]
|
|
}
|
|
func init() {
|
|
engine.InstallPlugin(&engine.PluginConfig{
|
|
Config: &config,
|
|
Name: "WebRTC",
|
|
Run: run,
|
|
})
|
|
}
|
|
|
|
type WebRTC struct {
|
|
engine.Publisher
|
|
*PeerConnection
|
|
}
|
|
|
|
func (rtc *WebRTC) Publish(streamPath string) bool {
|
|
// rtc.m.RegisterCodec(NewRTPCodec(RTPCodecTypeVideo,
|
|
// H264,
|
|
// 90000,
|
|
// 0,
|
|
// "level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f",
|
|
// DefaultPayloadTypeH264,
|
|
// new(codec.H264)))
|
|
|
|
// rtc.m.RegisterCodec(RTPCodecParameters{
|
|
// RTPCodecCapability: RTPCodecCapability{MimeType: "video/h264", ClockRate: 90000, Channels: 0, SDPFmtpLine: "", RTCPFeedback: nil},
|
|
// PayloadType: 96,
|
|
// }, RTPCodecTypeVideo);
|
|
|
|
//m.RegisterCodec(NewRTPPCMUCodec(DefaultPayloadTypePCMU, 8000))
|
|
// if !strings.HasPrefix(rtc.RemoteAddr, "127.0.0.1") && !strings.HasPrefix(rtc.RemoteAddr, "[::1]") {
|
|
// rtc.s.SetNAT1To1IPs(config.PublicIP, ICECandidateTypeHost)
|
|
// }
|
|
|
|
peerConnection, err := api.NewPeerConnection(Configuration{
|
|
// ICEServers: []ICEServer{
|
|
// {
|
|
// URLs: config.ICEServers,
|
|
// },
|
|
// },
|
|
})
|
|
if err != nil {
|
|
utils.Println(err)
|
|
return false
|
|
}
|
|
if _, err = peerConnection.AddTransceiverFromKind(RTPCodecTypeVideo); err != nil {
|
|
if err != nil {
|
|
utils.Println(err)
|
|
return false
|
|
}
|
|
}
|
|
if err != nil {
|
|
return false
|
|
}
|
|
peerConnection.OnICEConnectionStateChange(func(connectionState ICEConnectionState) {
|
|
utils.Printf("%s Connection State has changed %s ", streamPath, connectionState.String())
|
|
switch connectionState {
|
|
case ICEConnectionStateDisconnected, ICEConnectionStateFailed:
|
|
if rtc.Stream != nil {
|
|
rtc.Stream.Close()
|
|
}
|
|
}
|
|
})
|
|
rtc.PeerConnection = peerConnection
|
|
if rtc.Publish(streamPath) {
|
|
//f, _ := os.OpenFile("resource/live/rtc.h264", os.O_TRUNC|os.O_WRONLY, 0666)
|
|
rtc.Stream.Type = "WebRTC"
|
|
peerConnection.OnTrack(func(track *TrackRemote, receiver *RTPReceiver) {
|
|
defer rtc.Stream.Close()
|
|
go func() {
|
|
ticker := time.NewTicker(time.Second * 2)
|
|
select {
|
|
case <-ticker.C:
|
|
if rtcpErr := peerConnection.WriteRTCP([]rtcp.Packet{&rtcp.PictureLossIndication{MediaSSRC: uint32(track.SSRC())}}); rtcpErr != nil {
|
|
fmt.Println(rtcpErr)
|
|
}
|
|
case <-rtc.Done():
|
|
return
|
|
}
|
|
}()
|
|
var etrack engine.Track
|
|
codec := track.Codec()
|
|
if track.Kind() == RTPCodecTypeAudio {
|
|
switch codec.MimeType {
|
|
case MimeTypePCMA:
|
|
at := engine.NewAudioTrack()
|
|
at.SoundFormat = 7
|
|
at.Channels = byte(codec.Channels)
|
|
rtc.SetOriginAT(at)
|
|
etrack = at
|
|
case MimeTypePCMU:
|
|
at := engine.NewAudioTrack()
|
|
at.SoundFormat = 8
|
|
at.Channels = byte(codec.Channels)
|
|
rtc.SetOriginAT(at)
|
|
etrack = at
|
|
default:
|
|
return
|
|
}
|
|
|
|
} else {
|
|
vt := engine.NewVideoTrack()
|
|
vt.CodecID = 7
|
|
rtc.SetOriginVT(vt)
|
|
etrack = vt
|
|
}
|
|
var pack rtp.Packet
|
|
b := make([]byte, 1460)
|
|
for {
|
|
i, _, err := track.Read(b)
|
|
if err != nil {
|
|
return
|
|
}
|
|
if err = pack.Unmarshal(b[:i]); err != nil {
|
|
return
|
|
}
|
|
etrack.PushRTP(pack)
|
|
}
|
|
})
|
|
} else {
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
func (rtc *WebRTC) GetAnswer() ([]byte, error) {
|
|
// Sets the LocalDescription, and starts our UDP listeners
|
|
answer, err := rtc.CreateAnswer(nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
gatherComplete := GatheringCompletePromise(rtc.PeerConnection)
|
|
if err := rtc.SetLocalDescription(answer); err != nil {
|
|
utils.Println(err)
|
|
return nil, err
|
|
}
|
|
<-gatherComplete
|
|
if bytes, err := json.Marshal(rtc.LocalDescription()); err != nil {
|
|
utils.Println(err)
|
|
return bytes, err
|
|
} else {
|
|
return bytes, nil
|
|
}
|
|
}
|
|
|
|
func run() {
|
|
var m MediaEngine
|
|
var s SettingEngine
|
|
if len(config.PublicIP) > 0 {
|
|
s.SetNAT1To1IPs(config.PublicIP, ICECandidateTypeHost)
|
|
}
|
|
if config.PortMin > 0 && config.PortMax > 0 {
|
|
s.SetEphemeralUDPPortRange(config.PortMin, config.PortMax)
|
|
}
|
|
m.RegisterDefaultCodecs()
|
|
api = NewAPI(WithMediaEngine(&m), WithSettingEngine(s))
|
|
http.HandleFunc("/api/webrtc/play", func(w http.ResponseWriter, r *http.Request) {
|
|
utils.CORS(w, r)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
streamPath := r.URL.Query().Get("streamPath")
|
|
var offer SessionDescription
|
|
var rtc WebRTC
|
|
sub := engine.Subscriber{
|
|
ID: r.RemoteAddr,
|
|
Type: "WebRTC",
|
|
}
|
|
bytes, err := ioutil.ReadAll(r.Body)
|
|
defer func() {
|
|
if err != nil {
|
|
utils.Println(err)
|
|
fmt.Fprintf(w, `{"errmsg":"%s"}`, err)
|
|
return
|
|
}
|
|
}()
|
|
if err != nil {
|
|
return
|
|
}
|
|
if err = json.Unmarshal(bytes, &offer); err != nil {
|
|
return
|
|
}
|
|
|
|
if err = sub.Subscribe(streamPath); err != nil {
|
|
return
|
|
}
|
|
|
|
if rtc.PeerConnection, err = api.NewPeerConnection(Configuration{}); err != nil {
|
|
return
|
|
}
|
|
rtc.OnICECandidate(func(ice *ICECandidate) {
|
|
if ice != nil {
|
|
utils.Println(ice.ToJSON().Candidate)
|
|
}
|
|
})
|
|
if err = rtc.SetRemoteDescription(offer); err != nil {
|
|
return
|
|
}
|
|
vt := sub.WaitVideoTrack("h264")
|
|
if vt != nil {
|
|
pli := "42001f"
|
|
pli = fmt.Sprintf("%x", vt.SPS[1:4])
|
|
if !strings.Contains(offer.SDP, pli) {
|
|
pli = reg_level.FindAllStringSubmatch(offer.SDP, -1)[0][1]
|
|
}
|
|
var videoTrack *TrackLocalStaticSample
|
|
if videoTrack, err = NewTrackLocalStaticSample(RTPCodecCapability{MimeType: MimeTypeH264, SDPFmtpLine: "level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=" + pli}, "video", "m7s"); err != nil {
|
|
return
|
|
}
|
|
if _, err = rtc.AddTrack(videoTrack); err != nil {
|
|
return
|
|
}
|
|
var lastTimeStampV uint32
|
|
sub.OnVideo = func(pack engine.VideoPack) {
|
|
var s uint32
|
|
if lastTimeStampV > 0 {
|
|
s = pack.Timestamp - lastTimeStampV
|
|
}
|
|
lastTimeStampV = pack.Timestamp
|
|
if pack.NalType == codec.NALU_IDR_Picture {
|
|
videoTrack.WriteSample(media.Sample{
|
|
Data: vt.SPS,
|
|
})
|
|
videoTrack.WriteSample(media.Sample{
|
|
Data: vt.PPS,
|
|
})
|
|
}
|
|
videoTrack.WriteSample(media.Sample{
|
|
Data: pack.Payload,
|
|
Duration: time.Millisecond * time.Duration(s),
|
|
})
|
|
}
|
|
}
|
|
at := sub.GetAudioTrack("pcma", "pcmu")
|
|
if at != nil {
|
|
var audioTrack *TrackLocalStaticSample
|
|
audioMimeType := MimeTypePCMA
|
|
if at.SoundFormat == 8 {
|
|
audioMimeType = MimeTypePCMU
|
|
}
|
|
if audioTrack, err = NewTrackLocalStaticSample(RTPCodecCapability{audioMimeType, 8000, 0, "", nil}, "audio", "m7s"); err != nil {
|
|
return
|
|
}
|
|
if _, err = rtc.AddTrack(audioTrack); err != nil {
|
|
return
|
|
}
|
|
var lastTimeStampA uint32
|
|
sub.OnAudio = func(pack engine.AudioPack) {
|
|
var s uint32
|
|
if lastTimeStampA > 0 {
|
|
s = pack.Timestamp - lastTimeStampA
|
|
}
|
|
lastTimeStampA = pack.Timestamp
|
|
audioTrack.WriteSample(media.Sample{
|
|
Data: pack.Payload, Duration: time.Millisecond * time.Duration(s),
|
|
})
|
|
}
|
|
}
|
|
|
|
if bytes, err := rtc.GetAnswer(); err == nil {
|
|
w.Write(bytes)
|
|
rtc.OnICEConnectionStateChange(func(connectionState ICEConnectionState) {
|
|
utils.Printf("%s Connection State has changed %s ", streamPath, connectionState.String())
|
|
switch connectionState {
|
|
case ICEConnectionStateDisconnected, ICEConnectionStateFailed:
|
|
sub.Close()
|
|
rtc.PeerConnection.Close()
|
|
case ICEConnectionStateConnected:
|
|
if at != nil {
|
|
go sub.PlayAudio(at)
|
|
}
|
|
if vt != nil {
|
|
go sub.PlayVideo(vt)
|
|
}
|
|
}
|
|
})
|
|
} else {
|
|
return
|
|
}
|
|
})
|
|
|
|
http.HandleFunc("/api/webrtc/publish", func(w http.ResponseWriter, r *http.Request) {
|
|
streamPath := r.URL.Query().Get("streamPath")
|
|
offer := SessionDescription{}
|
|
bytes, err := ioutil.ReadAll(r.Body)
|
|
err = json.Unmarshal(bytes, &offer)
|
|
if err != nil {
|
|
utils.Println(err)
|
|
return
|
|
}
|
|
rtc := new(WebRTC)
|
|
if rtc.Publish(streamPath) {
|
|
if err := rtc.SetRemoteDescription(offer); err != nil {
|
|
utils.Println(err)
|
|
return
|
|
}
|
|
if bytes, err = rtc.GetAnswer(); err == nil {
|
|
w.Write(bytes)
|
|
} else {
|
|
utils.Println(err)
|
|
w.Write([]byte(err.Error()))
|
|
return
|
|
}
|
|
} else {
|
|
w.Write([]byte("bad name"))
|
|
}
|
|
})
|
|
}
|
|
|