incorrect_display_in_bytestream_vp8.html

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<!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">

/**

 * The display information in the VP8 byte stream is different from the display

 * information in the container, and it's the incorrect one, which doesn't honer

 * the original DAR. This test is used to check whether we will display the

 * video frame in correct DAR.

*/

async function testDisplayRatioForVP8() {

  const video = document.getElementById("v");

  video.src = "incorrect_display_in_bytestream_vp8.webm";

  await new Promise(r => video.oncanplay = r);

  // Since our media pipeline sends the frame to imageBridge, the target frame

  // may not be shown on the screen yet. 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", testDisplayRatioForVP8);

</script>

</body>

</html>