从websocket播放OPUS时的声音调度问题

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let audioWorker: any;
let exampleSocket;
let opusDecoder: any;
let audioCtx: any;
let startTime = 0;
let counter = 0;
function startAudio() {
  const host = document.location.hostname;
  const scheme = document.location.protocol.startsWith("https") ? "wss" : "ws";
  const uri = `${scheme}://${host}/api/sound`;
  const uri = "ws://third-i.local/api/sound";
  audioCtx = new AudioContext();
  startTime = 100 / 1000;
  exampleSocket = new WebSocket(uri);
  exampleSocket.binaryType = "arraybuffer";
  opusDecoder = new OpusStreamDecoder({onDecode});
  exampleSocket.onmessage = (event) => opusDecoder.ready.then(
    () => opusDecoder.decode(new Uint8Array(event.data))
  exampleSocket.onclose = () => console.log("socket is closed!!");
function onDecode({left, right, samplesDecoded, sampleRate}: any) {
  const source = audioCtx.createBufferSource();
  const buffer = audioCtx.createBuffer(2, samplesDecoded, sampleRate);
  buffer.copyToChannel(left, 0);
  buffer.copyToChannel(right, 1);
  source.buffer = buffer;
  source.connect(audioCtx.destination);
  source.start(startTime);
  startTime += buffer.duration;
}

let audioStreamSocket;
let opusDecoder: any;
let audioCtx: AudioContext;
let startTime: number;
function startAudio() {
  const host = document.location.hostname;
  const scheme = document.location.protocol.startsWith("https") ? "wss" : "ws";
  const uri = `${scheme}://${host}/api/sound`;
  audioStreamSocket = new WebSocket(uri);
  audioStreamSocket.binaryType = "arraybuffer";
  opusDecoder = new OpusStreamDecoder({ onDecode });
  audioStreamSocket.onmessage = (event) =>
    opusDecoder.ready.then(() => opusDecoder.decode(new Uint8Array(event.data)));
function onDecode({ left, right, samplesDecoded, sampleRate }: any) {
  if (audioCtx === undefined) {
    // See how we create the AudioContext only after some data has been received
    // and successfully decoded <=====================================
    console.log("Audio stream connected");
    audioCtx = new AudioContext();
    startTime = 0.1;
  const source = audioCtx.createBufferSource();
  const buffer = audioCtx.createBuffer(2, samplesDecoded, sampleRate);
  buffer.copyToChannel(left, 0);

从websocket播放OPUS时的声音调度问题

1 个回答