<iframe class="youtube-player" type="text/html" src="http://www.youtube.com/embed/JW5meKfy3fY?wmode=opaque&autohide=1&autoplay=1&volume=0&vol=0&mute=1" frameborder="0"><br /></iframe>
视频没有静音！我希望第一次播放时音量为 0...
【问题讨论】：
标签： javascript jquery youtube
Youtube 不通过 url 参数提供静音（请参阅http://code.google.com/apis/youtube/player_parameters.html）。
您必须为此使用 javascript。详情请见http://code.google.com/apis/youtube/js_api_reference.html。
但是，请注意上面链接页面上的警告： “YouTube JavaScript Player API 已于 2015 年 1 月 27 日被弃用。YouTube Flash 嵌入也已被弃用。有关更多信息，请参阅弃用政策。请将您的应用程序迁移到 IFrame API，它可以智能地使用任何嵌入式播放器 – HTML () 或 Flash () – 客户端支持。”
HTML
<iframe class="youtube-player" id="player" type="text/html" src="http://www.youtube.com/embed/JW5meKfy3fY?wmode=opaque&autohide=1&autoplay=1&enablejsapi=1" frameborder="0"><br /></iframe>
请注意 url 中的 enablejsapi=1。
Javascript
var player = iframe.getElementById('player');
player.mute();
更新
之前的代码存在一些问题，无法与当前的 API 一起使用（playerVars 语法错误）。这是更新的代码。您可能需要修改所需的参数。
<div id="player"></div>
<script>
// 1. 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);
// 2. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '100%',
width: '100%',
playerVars: {
autoplay: 1,
loop: 1,
controls: 0,
showinfo: 0,
autohide: 1,
modestbranding: 1,
vq: 'hd1080'},
videoId: '1pzWROvY7gY',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// 3. The API will call this function when the video player is ready.
function onPlayerReady(event) {
event.target.playVideo();
player.mute();
}
var done = false;
function onPlayerStateChange(event) {
}
function stopVideo() {
player.stopVideo();
}
</script>【讨论】：
player_api 将于 2015 年 6 月 25 日弃用。 对于播放 youtube 视频，有一个新的 api IFRAME_API
如下代码：
<!-- 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: 'M7lc1UVf-VE',
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),
// the player should play for six seconds and then stop.
var done = false;
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING && !done) {
setTimeout(stopVideo, 6000);
done = true;
}
}
function stopVideo() {
player.stopVideo();
}
</script>
【讨论】：
试试这个效果很好
<html><body style='margin:0px;padding:0px;'>
<script type='text/javascript' src='http://www.youtube.com/iframe_api'></script><script type='text/javascript'>
var player;
function onYouTubeIframeAPIReady()
{player=new YT.Player('playerId',{events:{onReady:onPlayerReady}})}
function onPlayerReady(event){player.mute();player.setVolume(0);player.playVideo();}
</script>
<iframe id='playerId' type='text/html' width='1280' height='720'
src='https://www.youtube.com/embed/R52bof3tvZs?enablejsapi=1&rel=0&playsinline=1&autoplay=1&showinfo=0&autohide=1&controls=0&modestbranding=1' frameborder='0'>
</body></html>【讨论】：
您可以选择视频播放器，然后设置其音量：
var mp = iframe.getElementById('movie_player');
mp.setVolume(0);
【讨论】：
var video1;
function onYouTubeIframeAPIReady(){
player = new YT.Player("video1", {
videoId: "id-number",
width: 300,
height: 200,
playerVars: {
"autoplay": 1, // and 0 means off
"controls": 1,
"showinfo": 0,
"modestbranding": 0,
"loop": 1,
"fs": 0,
"cc_load_policy": 0,
"iv_load_policy": 3,
},
events: {
'onReady': onPlayerReady
}
});
}
function onPlayerReady(event) {
event.target.mute();
event.target.setVolume(0); //this can be set from 0 to 100
}请记住，在 IE 和 Safari 中声音不会被静音。
【讨论】：
更新 2021 以在桌面/移动设备上循环和自动播放视频（在 iPhone X - Safari 上测试）。
我正在使用onPlayerStateChange 事件，如果视频结束，我会再次播放视频。在 YouTube API 中引用 onPlayerStateChange event。
<div id="player"></div>
<script>
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '100%',
width: '100%',
playerVars: {
autoplay: 1,
loop: 1,
controls: 0,
showinfo: 0,
autohide: 1,
playsinline: 1,
mute: 1,
modestbranding: 1,
vq: 'hd1080'
},
videoId: 'ScMzIvxBSi4',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
function onPlayerReady(event) {
event.target.mute();
setTimeout(function() {
event.target.playVideo();
}, 0);
}
function onPlayerStateChange(event) {
if (event.target.getPlayerState() == 0) {
setTimeout(function() {
event.target.playVideo();
}, 0);
}
}
</script>【讨论】：
接受的答案效果很好。 我想要更多控制，所以我在脚本中添加了更多功能：
function unmuteVideo() {
player.unMute();
return false;
}
function muteVideo() {
player.mute();
return false;
}
function setVolumeVideo(volume) {
player.setVolume(volume);
return false;
}
这里是 HTML：
<br>
<button type="button" onclick="unmuteVideo();">Unmute Video</button>
<button type="button" onclick="muteVideo();">Mute Video</button>
<br>
<br>
<button type="button" onclick="setVolumeVideo(100);">Volume 100%</button>
<button type="button" onclick="setVolumeVideo(75);">Volume 75%</button>
<button type="button" onclick="setVolumeVideo(50);">Volume 50%</button>
<button type="button" onclick="setVolumeVideo(25);">Volume 25%</button>
现在您可以更好地控制声音... 查看更多参考网址：
【讨论】：