Source Code:
<!DOCTYPE html> <html> <body> <button onclick="getVideoTracks()" type="button">Get the number of available video tracks</button> <br> <video id="video1" controls="controls"> <source src="mov_bbb.mp4" type="video/mp4"> <source src="mov_bbb.ogg" type="video/ogg"> Your browser does not support HTML5 video. </video> <script> myVid=document.getElementById("video1"); function getVideoTracks() { alert(myVid.videoTracks.length); } </script> <p>Video courtesy of <a href="http://www.bigbuckbunny.org/" target="_blank">Big Buck Bunny</a>.</p> </body> </html>
Result:
W3Schools.com
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