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fix websocket, time frame on each stage

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This commit is contained in:
Linus Torvalds 2019-04-06 01:51:24 +08:00
parent a278fb4cd9
commit a625817cac
3 changed files with 87 additions and 70 deletions
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63
index.html
View file

@ -43,7 +43,8 @@ var remoteSessionDescription = ""
var conn = new WebSocket(`ws://${location.host}/ws`);
conn.onopen = () => {
log("WebSocket is opened");
log("WebSocket is opened. Send ping");
conn.send(JSON.stringify({"id": "ping", "data": ""}));
}
conn.onerror = error => {
@ -51,10 +52,30 @@ conn.onerror = error => {
}
conn.onmessage = e => {
console.log(e.data);
// e.data in json
d = JSON.parse(e.data);
switch (d["id"]) {
case "pong":
log("Recv pong. Start webrtc");
startWebRTC();
break;
case "sdp":
pc.setRemoteDescription(new RTCSessionDescription(JSON.parse(atob(d["data"]))));
break;
}
}
window.startSession = () => {
let sd = remoteSessionDescription
if (sd === '') {
return alert('Session Description must not be empty')
}
try {
pc.setRemoteDescription(new RTCSessionDescription(JSON.parse(atob(sd))));
} catch (e) {
alert(e);
}
}
function postSession(session) {
if (session == "") {
@ -184,6 +205,7 @@ function endInput() {
pc.oniceconnectionstatechange = e => {
log(pc.iceConnectionState);
if (pc.iceConnectionState === "connected") {
conn.send(JSON.stringify({"id": "start", "data": ""}));
startInput();
}
else if (pc.iceConnectionState === "disconnected") {
@ -205,40 +227,33 @@ pc.ontrack = function (event) {
}
// candidate packet from STUN
pc.onicecandidate = event => {
if (event.candidate === null) {
// var session = btoa(JSON.stringify(pc.localDescription));
// localSessionDescription = session;
// postSession(session)
} else {
console.log(JSON.stringify(event.candidate));
}
}
// create SDP
pc.createOffer({offerToReceiveVideo: true, offerToReceiveAudio: true}).then(d => {
pc.setLocalDescription(d, () => {
// send to ws
session = btoa(JSON.stringify(pc.localDescription));
localSessionDescription = session;
conn.send(JSON.stringify({"id": "sdp", "data": session}));
});
function startWebRTC() {
// create SDP
pc.createOffer({offerToReceiveVideo: true, offerToReceiveAudio: true}).then(d => {
pc.setLocalDescription(d, () => {
// send to ws
session = btoa(JSON.stringify(pc.localDescription));
localSessionDescription = session;
conn.send(JSON.stringify({"id": "sdp", "data": session}));
});
}).catch(log);
}).catch(log);
window.startSession = () => {
let sd = remoteSessionDescription
if (sd === '') {
return alert('Session Description must not be empty')
}
try {
pc.setRemoteDescription(new RTCSessionDescription(JSON.parse(atob(sd))));
} catch (e) {
alert(e);
}
}
</script>
</html>

64
main.go
View file

@ -41,9 +41,7 @@ func startGame(path string, imageChannel chan *image.RGBA, inputChannel chan int
}
func main() {
// imageChannel := make(chan *image.RGBA, 100)
fmt.Println("http://localhost:8000")
// webRTC = webrtc.NewWebRTC()
// router := mux.NewRouter()
// router.HandleFunc("/", getWeb).Methods("GET")
@ -77,20 +75,13 @@ func ws(w http.ResponseWriter, r *http.Request) {
log.Println("new connection")
webRTC := webrtc.NewWebRTC()
localSession, err := webRTC.StartClient(width, height)
if err != nil {
log.Fatalln(err)
}
log.Println("new connection2")
// streaming game
// imageChannel := make(chan *image.RGBA, 100)
// go screenshotLoop(imageChannel, webRTC)
// go startGame("games/" + gameName, imageChannel, webRTC.InputChannel, webRTC)
// start new games and webrtc stuff?
for {
isDone := false
for !isDone {
mt, message, err := c.ReadMessage()
if err != nil {
log.Println("read:", err)
@ -112,12 +103,23 @@ func ws(w http.ResponseWriter, r *http.Request) {
res.ID = "pong"
case "sdp":
webRTC.SetRemoteSession(res.Data)
localSession, err := webRTC.StartClient(req.Data, width, height)
if err != nil {
log.Fatalln(err)
}
res.ID = "sdp"
res.Data = localSession
case "candidate":
res.ID = "candidate"
case "start":
imageChannel := make(chan *image.RGBA, 100)
go screenshotLoop(imageChannel, webRTC)
go startGame("games/" + gameName, imageChannel, webRTC.InputChannel, webRTC)
res.ID = "start"
isDone = true
}
stRes, err := json.Marshal(res)
@ -134,26 +136,26 @@ func ws(w http.ResponseWriter, r *http.Request) {
}
}
// func postSession(w http.ResponseWriter, r *http.Request) {
// bs, err := ioutil.ReadAll(r.Body)
// if err != nil {
// log.Fatal(err)
// }
// r.Body.Close()
func postSession(w http.ResponseWriter, r *http.Request) {
bs, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Fatal(err)
}
r.Body.Close()
// webRTC := webrtc.NewWebRTC()
webRTC := webrtc.NewWebRTC()
// localSession, err := webRTC.StartClient(string(bs), width, height)
// if err != nil {
// log.Fatalln(err)
// }
localSession, err := webRTC.StartClient(string(bs), width, height)
if err != nil {
log.Fatalln(err)
}
// imageChannel := make(chan *image.RGBA, 100)
// go screenshotLoop(imageChannel, webRTC)
// go startGame("games/"+gameName, imageChannel, webRTC.InputChannel, webRTC)
imageChannel := make(chan *image.RGBA, 100)
go screenshotLoop(imageChannel, webRTC)
go startGame("games/"+gameName, imageChannel, webRTC.InputChannel, webRTC)
// w.Write([]byte(localSession))
// }
w.Write([]byte(localSession))
}
// func screenshotLoop(imageChannel chan *image.RGBA) {
func screenshotLoop(imageChannel chan *image.RGBA, webRTC *webrtc.WebRTC) {
@ -168,7 +170,5 @@ func screenshotLoop(imageChannel chan *image.RGBA, webRTC *webrtc.WebRTC) {
yuv := util.RgbaToYuv(image)
webRTC.ImageChannel <- yuv
}
// time.Sleep(10 * time.Millisecond)
// time.Sleep(time.Duration(1000 / FPS) * time.Millisecond)
}
}

30
webrtc/webrtc.go
View file

@ -115,7 +115,7 @@ type WebRTC struct {
}
// StartClient start webrtc
func (w *WebRTC) StartClient(width, height int) (string, error) {
func (w *WebRTC) StartClient(remoteSession string, width, height int) (string, error) {
defer func() {
if err := recover(); err != nil {
fmt.Println(err)
@ -151,6 +151,7 @@ func (w *WebRTC) StartClient(width, height int) (string, error) {
return "", err
}
// WebRTC state callback
w.connection.OnICEConnectionStateChange(func(connectionState webrtc.ICEConnectionState) {
fmt.Printf("ICE Connection State has changed: %s\n", connectionState.String())
@ -167,6 +168,11 @@ func (w *WebRTC) StartClient(width, height int) (string, error) {
}
})
w.connection.OnICECandidate(func(iceCandidate *webrtc.ICECandidate) {
fmt.Println(iceCandidate)
})
// Data channel callback
w.connection.OnDataChannel(func(d *webrtc.DataChannel) {
fmt.Printf("New DataChannel %s %d\n", d.Label(), d.ID())
@ -184,6 +190,15 @@ func (w *WebRTC) StartClient(width, height int) (string, error) {
})
})
offer := webrtc.SessionDescription{}
Decode(remoteSession, &offer)
err = w.connection.SetRemoteDescription(offer)
if err != nil {
return "", err
}
answer, err := w.connection.CreateAnswer(nil)
if err != nil {
return "", err
@ -193,19 +208,6 @@ func (w *WebRTC) StartClient(width, height int) (string, error) {
return localSession, nil
}
func (w *WebRTC) SetRemoteSession(remoteSession string) error {
offer := webrtc.SessionDescription{}
Decode(remoteSession, &offer)
err := w.connection.SetRemoteDescription(offer)
if err != nil {
return err
}
return nil
}
// StopClient disconnect
func (w *WebRTC) StopClient() {
fmt.Println("===StopClient===")