Function startDiagnostics

core/http/static/talk.js:417–442

()

}

function startDiagnostics() {
  if (!audioPlayback.srcObject) return;

  // Create AudioContext and connect the remote stream to an AnalyserNode
  if (!audioCtx) {
    audioCtx = new AudioContext();
    const source = audioCtx.createMediaStreamSource(audioPlayback.srcObject);
    analyser = audioCtx.createAnalyser();
    analyser.fftSize = 8192;
    analyser.smoothingTimeConstant = 0.3;
    source.connect(analyser);

    document.getElementById('statSampleRate').textContent = audioCtx.sampleRate + ' Hz';
  }

  // Start rendering loop
  if (!diagAnimFrame) {
    drawDiagnostics();
  }

  // Start WebRTC stats polling
  if (!statsInterval) {
    pollWebRTCStats();
    statsInterval = setInterval(pollWebRTCStats, 1000);
  }
}

function stopDiagnostics() {
  if (diagAnimFrame) {