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View Code? Open in Web Editor NEWanother liboups.js encoder - decoder
another liboups.js encoder - decoder
I am tying to distribute load among multiple decoder workers:
var init_msg = {type: 'init', config: {sampleRate: 48000, channels: 2}};
var workers = [];
async function do_handle_mssg(e) {
switch (e.data.type) {
case 'error' :
console.log('decoding error ' + e.data.error);
break;
case 'data' :
player.feed(e.data.payload);
break;
default:
}
};
for (var j = 0; j < 10; j++) {
var worker = new Worker('workers/decoder.js');
workers.push(worker);
worker.onmessage = do_handle_mssg;
worker.postMessage( init_msg );
}
var crrnt_worker = 0;
and calling it with next code:
workers[crrnt_worker].postMessage({
type: 'decode',
buffer: dt
});
crrnt_worker = crrnt_worker + 1;
if( crrnt_worker > 9) {
crrnt_worker = 0;
}
Audio gets garbled. Am I doing something wrong?
I found that samples Length>0 is always 0 My metadata is dataview, and I request help
var sock = null;
var worker = new Worker("./js/decoder.js");
worker.onmessage = evt => {
if (evt.data.type === "data") {
console.log(evt.data.payload);
} else {
console.log(evt);
}
};
worker.postMessage({
type: "init",
config: {
sampleRate: 48000,
channels: 1
}
});
document.onkeydown = e => {
if (e.key === "Backspace") {
sock.close();
window.close();
}
};
sock = navigator.mozTCPSocket.open("127.0.0.1", 2049, {});
sock.onclose = e => {
sock.send("BYEBYEBYE");
};
sock.onopen = e => {
navigator.mediaDevices.getUserMedia({audio: true}).then(stream => {
var opt = {audioBitsPerSecond: 48000};
var mr = new MediaRecorder(stream, opt);
mr.ondataavailable = ev => {
new Response(ev.data).arrayBuffer().then(b => {
worker.postMessage({
type: "decode",
buffer: b
});/*
var bb = new Float32Array(b);
var s = "";
for (let bbb of bb) {
bbb = Math.floor(32767 * bbb);
bbb = Math.min(32767, bbb);
bbb = Math.max(-32768, bbb);
s += String.fromCharCode(bbb);
}
sock.send(s);*/
});
};
mr.start(30);
});
};
Worker has been created successfully and code works till the line new Response
but seems like postMessage
does not work. I am using Firefox 48.
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