radio95/RadioPlayer
0
1
Fork 0
mirror of https://github.com/radio95-rnt/RadioPlayer.git synced 2026-07-29 23:39:15 +02:00
Code Issues Activity

fm95 connection and also sync time

Browse Source
This commit is contained in:
kuba
2026-05-09 22:51:31 +02:00
parent 4b6244eb01
commit dbc468e575
2 changed files with 48 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
modules/web/web.js
+14 -1
View File
@@ -85,6 +85,13 @@ function connectWs() {
ws.addEventListener("message", evt => {
handleMessage(JSON.parse(evt.data));
});
function syncTime() {
wsSend({ action: "get_time", client_time: performance.now() / 1000 });
}
setInterval(syncTime, 10000);
syncTime(); // initial sync
}
function wsSend(obj) {
@@ -100,7 +107,13 @@ function handleMessage(msg) {
switch (msg.event) {
case "time": {
const localNow = performance.now() / 1000;
timeOffset = localNow - msg.data;
const rtt = localNow - msg.client_time; // round-trip time
const serverNow = msg.data + rtt / 2; // estimate server time at this moment
const newOffset = localNow - serverNow;
if (timeOffset === 0) timeOffset = newOffset;
else timeOffset = timeOffset * 0.9 + newOffset * 0.1;
break;
}
case "state": {
const d = msg.data || {};