Чтобы определить, когда видео заканчивается, видео имеет состояние 0 или YT.PlayerState.ENDED
Вот ссылка на jsfiddle ссылка !
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Page 1</title>
</head>
<body>
<h1>Video page</h1>
<br>
<!-- 1. The <iframe> (and video player) will replace this <div> tag. -->
<div id="player"></div>
<script>
// 2. This code loads the IFrame Player API code asynchronously.
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
// 3. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: 'ussCHoQttyQ',
playerVars: {
'autoplay': 0,
'controls': 0,
'showinfo': 0,
'rel': 0
},
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// 4. The API will call this function when the video player is ready.
function onPlayerReady(event) {
event.target.playVideo();
}
// 5. The API calls this function when the player's state changes.
// The function indicates that when playing a video (state=1),
// -1 unstarted
// 0 ended
// 1 playing
// 2 paused
// 3 buffering
// 5 video cued
var done = false;
function onPlayerStateChange(event) {
console.log(event);
if (event.data == YT.PlayerState.ENDED) {
alert(1);
}
}
</script>
</body>
</html>