<!DOCTYPE HTML>
<html class="reftest-wait">
<head>
</head>
<body>
<video id="v" style="position:absolute; left:0; top:0"></video>
<canvas id="canvas" style="position:absolute; left:0; top:0"></video>
<script type="text/javascript">
/**
 * Do seek multiple times and check the video frame on 0.3s.
 */
async function testFrameOrderAfterSeeking() {
  const video = document.getElementById("v");
  video.src = "frame_order.mp4";
  await new Promise(r => video.oncanplay = r);
  // The issue won't happen on the first seek, because the decoder hasn't been
  // created yet.
  video.currentTime = 0.1;
  await new Promise(r => video.onseeked = r);
  video.currentTime = 0.3;
  await new Promise(r => video.onseeked = r);
  // Since our media pipeline sends the frame to imageBridge, then fires
  // a seeked event, the target frame may not be shown on the screen.
  // So using canvas to access the target frame in the imageContainer in
  // videoElement.
  const canvas = document.getElementById("canvas");
  canvas.width = video.videoWidth;
  canvas.height = video.videoHeight;
  const ctx = canvas.getContext("2d");
  ctx.drawImage(video, 0, 0, video.videoWidth, video.videoHeight);
  document.documentElement.removeAttribute('class');
};

window.addEventListener("MozReftestInvalidate", testFrameOrderAfterSeeking);
</script>
</body>
</html>
