start/play embedded (iframe) youtube-video on click of an image

The quick and dirty way is to simply swap out the iframe with one that has autoplay=1 set using jQuery.

THE HTML

Placeholder:

<div id="videoContainer">  <iframe width="450" height="283" src="https://www.youtube.com/embed/VIDEO_ID_HERE?wmode=transparent" frameborder="0" allowfullscreen wmode="Opaque"></iframe></div>

Autoplay link:

<a class="introVid" href="#video">Watch the video</a></p>

THE JQUERY

The onClick catcher that calls the function

jQuery('a.introVid').click(function(){  autoPlayVideo('VIDEO_ID_HERE','450','283');});

The function

/*--------------------------------  Swap video with autoplay video---------------------------------*/function autoPlayVideo(vcode, width, height){  "use strict";  $("#videoContainer").html('<iframe width="'+width+'" height="'+height+'" src="https://www.youtube.com/embed/'+vcode+'?autoplay=1&loop=1&rel=0&wmode=transparent" frameborder="0" allowfullscreen wmode="Opaque"></iframe>');}

You can do this simply like this

$('#image_id').click(function() {  $("#some_id iframe").attr('src', $("#some_id iframe", parent).attr('src') + '?autoplay=1'); });

where image_id is your image id you are clicking and some_id is id of div in which iframe is also you can use iframe id directly.

To start video

var videoURL = $('#playerID').prop('src');videoURL += "&autoplay=1";$('#playerID').prop('src',videoURL);

To stop video

var videoURL = $('#playerID').prop('src');videoURL = videoURL.replace("&autoplay=1", "");$('#playerID').prop('src','');$('#playerID').prop('src',videoURL);

You may want to replace "&autoplay=1" with "?autoplay=1" incase there are no additional parameters

works for both vimeo and youtube on FF & Chrome