forked from ARCG/openWebTrX
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arcg
207
htdocs/owt.js
Normal file
207
htdocs/owt.js
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var owt_protocol = 'ws://';
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if(window.location.toString().indexOf('https://') == 0){
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owt_protocol = 'wss://';
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}
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owt_url1=owt_protocol+window.location.href.split("://")[1]
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owt_lastslash = owt_url1.lastIndexOf('/');
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owt_firstslash= owt_url1.indexOf('/',6);
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owt_url2=owt_url1.substr(0,owt_firstslash)
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//owt_url2=owt_url1.substr(0,owt_lastslash)
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owt_ws_url=owt_url2+"/tx/ws/";
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owt_button_orig=""
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var owt_webSocket;
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var owt_mediaRecorder
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function owt_start_ws(start_audio) {
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owt_webSocket = new WebSocket(owt_ws_url);
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owt_webSocket.binaryType = 'blob';
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owt_webSocket.onmessage= function (event) {
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console.log('Message from server ', event.data);
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owt_make_msg(event.data);
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}
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owt_webSocket.onclose =function (event) {
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console.log('ws closed :(', event.data);
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owt_make_button_orig();
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owt_make_msg('TX connection closed!');
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owt_destroy_ws()
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}
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if(start_audio) {
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//owt_webSocket.onopen =owt_start_audio();
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if (MediaRecorder.isTypeSupported('audio/ogg;codecs=opus')) {
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mimeType="audio/ogg;codecs=opus";
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} else {
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mimeType="audio/webm;codecs=opus";
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}
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//function owt_start_audio(){
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owt_webSocket.onopen = event => {
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console.log("[open] Audio Node-RED websocket connection established");
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navigator.mediaDevices
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.getUserMedia({ audio: true, video: false, channelCount: 1, sampleRate: 12000, sampleSize: 16 })
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.then(stream => {
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owt_mediaRecorder = new MediaRecorder(stream, {
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//audioBitsPerSecond : 128000,
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audioBitsPerSecond : 64000,
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//mimeType: 'audio/webm;codecs=opus',
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//mimeType: 'audio/ogg;codecs=opus',
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mimeType: mimeType,
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});
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owt_mediaRecorder.addEventListener('dataavailable', event => {
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if (event.data.size > 0) {
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//console.log(event.data.length)
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owt_webSocket.send(event.data);
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}
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});
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owt_mediaRecorder.start(100);
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});
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}
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}
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}
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function owt_stop_ws() {
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track=owt_mediaRecorder.stream.getAudioTracks()
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track.forEach(function(track) { track.stop(); });
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owt_webSocket.close()
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owt_make_button_orig()
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}
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function owt_destroy_ws() {
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if (typeof owt_mediaRecorder === "object" ) {
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a=owt_mediaRecorder.stream.getAudioTracks();
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owt_mediaRecorder.stream.removeTrack(a[0]);
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owt_mediaRecorder.removeEventListener('dataavilable',Element)
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owt_mediaRecorder.stop()
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owt_mediaRecorder=0
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console.log("audio destroyed")
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}
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owt_webSocket=0;
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console.log("ws destroyed")
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}
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function owt_make_button_running() {
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//PTT button, close link
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document.getElementById('owt_button').innerHTML="<div class='openwebrx-button' id='owt_ptt' onmousedown='owt_ptt_on();' onmouseup='owt_ptt_off();' ontouchstart='owt_ptt_on();' ontouchend='owt_ptt_off();' >PTT</div> <a onclick='owt_stop_ws();' >disconnect</a>"
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}
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function owt_make_button_orig() {
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//connect button from variable
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document.getElementById('owt_button').innerHTML=owt_button_orig
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}
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function owt_make_msg(data) {
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//if data contains config:, status: => ignore
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//else if containts msg: => split and print
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document.getElementById('owt_msg').innerHTML=""
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//else print
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}
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function owt_start() {
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//owt_vumeter()
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owt_button_orig= document.getElementById('owt_button').innerHTML
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owt_start_ws(1);
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//owt_start_audio();
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owt_make_button_running();
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}
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function owt_ptt_on() {
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mute=false;
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toggleMute();
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owt_webSocket.send("SET:PTT=1")
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document.getElementById('owt_ptt').style.background="#fff"
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document.getElementById('owt_ptt').style.color="#f00"
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}
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function owt_ptt_off() {
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mute=true;
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toggleMute();
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owt_webSocket.send("SET:PTT=0")
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document.getElementById('owt_ptt').style.background="#f00"
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document.getElementById('owt_ptt').style.color="#fff"
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}
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//keypress
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//keydown
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//keyup
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//left 37
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//right 39
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//up 38
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//down 40
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document.addEventListener('keydown', function(e) {
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var keynum = e.keyCode || e.which;
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console.log(keynum)
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if(keynum == 32) {
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owt_ptt_on()
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}
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});
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document.addEventListener('keyup', function(e) {
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var keynum = e.keyCode || e.which;
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console.log("up"+keynum)
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if(keynum == 32) {
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owt_ptt_off()
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}
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});
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document.addEventListener('keypress', function(e) {
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var keynum = e.keyCode || e.which;
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console.log("press"+keynum)
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// if(keynum == 32) {
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// owt_ptt_off()
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// }
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});
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//https://stackoverflow.com/questions/33322681/checking-microphone-volume-in-javascript
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function owt_vumeter() {
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document.getElementById('owt_pids').innerHTML=`
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<div class='owt_pid'></div>
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<div class='owt_pid'></div>
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<div class='owt_pid'></div>
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<div class='owt_pid'></div>
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<div class='owt_pid'></div>
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<div class='owt_pid'></div>`;
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navigator.mediaDevices.getUserMedia({
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audio: true,
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video: false,
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})
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.then(function(stream) {
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const audioContext = new AudioContext();
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const analyser = audioContext.createAnalyser();
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const microphone = audioContext.createMediaStreamSource(stream);
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const scriptProcessor = audioContext.createScriptProcessor(2048, 1, 1);
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analyser.smoothingTimeConstant = 0.8;
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analyser.fftSize = 1024;
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microphone.connect(analyser);
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analyser.connect(scriptProcessor);
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scriptProcessor.connect(audioContext.destination);
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scriptProcessor.onaudioprocess = function() {
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const array = new Uint8Array(analyser.frequencyBinCount);
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analyser.getByteFrequencyData(array);
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const arraySum = array.reduce((a, value) => a + value, 0);
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const average = arraySum / array.length;
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//console.log(Math.round(average));
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owt_colorPids(average);
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};
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})
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.catch(function(err) {
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/* handle the error */
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console.error(err);
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});
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}
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function owt_colorPids(vol) {
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//console.log('vu'+vol);
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const allPids = [...document.querySelectorAll('.owt_pid')];
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const numberOfPidsToColor = Math.round(vol / 20);
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const pidsToColor = allPids.slice(0, numberOfPidsToColor);
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for (const pid of allPids) {
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pid.style.backgroundColor = "#e6e7e8";
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}
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for (const pid of pidsToColor) {
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//console.log(pid[i]);
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pid.style.backgroundColor = "#00ce00";
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}
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}
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//TODO
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// //on websocket rx
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// display MSG (on air, problem [rigctl, high-swr, other user took over], ....)
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// on websocket close => display msg
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// fkt:
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// display msg
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// get parameters from ws-rx and update gui if gui present
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// send parameters from gui to ws (relay shift, ctcss, power, external IO)
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