Timeout in mediastream Picture-in-Picture test

[beaufortfrancois]

picture-in-picture/mediastream.html test times out in Safari. I believe it is because mediastreamVideoLoadedPromise is pending forever.

Even though <video> is marked as autoplay and <canvas> is drawn, onloadedmetadata is never fired. @jernoble is that a known issue?

  const canvas = document.createElement('canvas');
  const video = document.createElement('video');
  const mediastreamVideoLoadedPromise = new Promise((resolve, reject) => {
    canvas.getContext('2d').fillRect(0, 0, canvas.width, canvas.height);
    video.autoplay = true;
    video.srcObject = canvas.captureStream(60 /* fps */);
    video.onloadedmetadata = () => {
      resolve(video);
    };
    video.onerror = error => {
      reject(error);
    };
  });
  await mediastreamVideoLoadedPromise;

[jugglinmike]

This sounds like a possible test/browser bug rather than an issue in results collection. Is that right?

[beaufortfrancois]

You're right. I've filed web-platform-tests/wpt#14177 instead. Sorry for this.

[jugglinmike]

No worries!