chromium/third_party/blink/web_tests/media/video-frame-accurate-seek.html

<!DOCTYPE html>
<html>
    <head>
        <script src="media-file.js"></script>
        <script src="video-paint-test.js"></script>
    </head>
    <body onload="setSrcByTagName('video', 'content/test-25fps.ogv'); initAndSeeked()">
        <p>Test that setting currentTime is frame-accurate. The three videos below should be showing frames 12, 13, and 14.</p>
        <video oncanplaythrough='event.target.currentTime=(12/25)'></video>
        <video oncanplaythrough='event.target.currentTime=(13/25)'></video>
        <video oncanplaythrough='event.target.currentTime=(14.6/25)'></video>
    </body>
</html>