910e62b5创建于 1月15日历史提交
<!DOCTYPE html>
<script src=../../resources/testharness.js></script>
<script src=../../resources/testharnessreport.js></script>
<video></video>
<script>

async_test(t => {
  var video = document.querySelector('video');
  video.requestVideoFrameCallback(t.step_func_done(_ => {
    let stream = video.captureStream();
    let video_tracks = stream.getVideoTracks();
    assert_greater_than(video_tracks.length, 0);
    let video_stream = video_tracks[0];
    let capabilities = video_stream.getCapabilities();
    assert_approx_equals(capabilities.frameRate.max, 25, 0.01);
  }));
  video.onerror = t.unreached_func();
  video.src = '../../media/content/test-25fps.ogv';
}, 'Run captureStream() on a <video> source with non 30fps frame rate.');

</script>