HTMLMediaElement-addTextTrack.html 573 B

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  1. <!DOCTYPE html>
  2. <script src="../include.js"></script>
  3. <script>
  4. asyncTest(done => {
  5. const video = document.createElement("video");
  6. video.textTracks.addEventListener("addtrack", () => {
  7. println(`addtrack event called`);
  8. done();
  9. });
  10. const track = video.addTextTrack("subtitles", "demo label", "en-GB");
  11. println(`track.kind: ${track.kind}`);
  12. println(`track.label: ${track.label}`);
  13. println(`track.language: ${track.language}`);
  14. println(`track.mode: ${track.mode}`);
  15. });
  16. </script>