| <!doctype html> |
| <html> |
| <head> |
| <title>video element resizing during playback</title> |
| <link rel="help" href="https://html.spec.whatwg.org/multipage/media.html#concept-video-intrinsic-width"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <div id="log"></div> |
| <script> |
| for (const format of ['mp4', 'webm']) { |
| promise_test(async (t) => { |
| const video = document.createElement('video'); |
| assert_implements_optional(video.canPlayType(`video/${format}`), `${format} supported`); |
| |
| // Load the video and wait for initial resize event. |
| video.src = `/media/400x300-red-resize-200x150-green.${format}`; |
| video.muted = true; |
| video.preload = 'auto'; |
| document.body.appendChild(video); |
| const eventWatcher = new EventWatcher(t, video, ['resize', 'playing', 'error', 'ended']); |
| await eventWatcher.wait_for(['resize']); |
| assert_equals(video.videoWidth, 400, 'width after first resize event'); |
| assert_equals(video.videoHeight, 300, 'height after first resize event'); |
| |
| // Now play and wait for a second resize event. |
| const playPromise = video.play(); |
| if (playPromise) { |
| playPromise.catch(t.unreached_func("play rejected")); |
| } |
| await eventWatcher.wait_for(['playing', 'resize']); |
| assert_equals(video.videoWidth, 200, 'width after second resize event'); |
| assert_equals(video.videoHeight, 150, 'height after second resize event'); |
| }, `${format} video`); |
| } |
| </script> |
| </body> |
| </html> |
