我想显示视频的持续时间和实际时间。
为此,我在JS中使用HTMLMediaElement API。
一切正常(播放,暂停,重启......)但持续时间和当前时间不起作用,我不知道为什么。我通常不用JS编码所以请你好^^
这是我的代码:
<div class="wrap_video">
<video id="video" width="298" height="240">
<source src="videos/windowsill.mp4" type="video/mp4">
Désolé, votre navigateur ne vous permet pas de visualiser cette vidéo.
</video>
</div>
<div class="datas">
<span id="currentTime"><script>document.write(currentTime);</script></span>
<span id="duration"><script>document.write(duration);</script></span>
</div>
<div id="buttonbar">
<button id="restart" class="btn btn-default" onclick="restart();">
<span class="glyphicon glyphicon-repeat"></span>
</button>
<button id="rewind" class="btn btn-default" onclick="skip(-10)">
<span class="glyphicon glyphicon-fast-backward"></span><!--<<-->
</button>
<button id="play" class="btn btn-default" onclick="playPause()">
<span class="glyphicon glyphicon-play"></span><!-->-->
</button>
<button id="fastForward" class="btn btn-default" onclick="skip(10)">
<span class="glyphicon glyphicon-fast-forward"></span>
</button>
</div>
</div>
我的JS:
/**
* Play or Pause the video
*/
function playPause() {
var video = document.getElementById("video");
var button = document.getElementById("play");
var currentTime = 0;
currentTime += document.getElementById("video").currentTime;
var duration = document.getElementById("video").duration;
if (video.paused) {
video.play();
button.innerHTML = "<span class=\"glyphicon glyphicon-pause\"></span>";
} else {
video.pause();
button.innerHTML = "<span class=\"glyphicon glyphicon-play\"></span>";
}
}
/**
* Restart the video
*/
function restart() {
var video = document.getElementById("video");
video.currentTime = 0;
}
/**
* Skip the video to the given value
*
* @param int value The value
*/
function skip(value) {
var video = document.getElementById("video");
video.currentTime += value;
}
实际上我只想显示当前的时间和持续时间
编辑: 好的,现在我有了: 目前的时间
setInterval(function() {
document.getElementById("currentTime").innerHTML = document.getElementById("video").currentTime;
}, 1000);
var duration = document.getElementById("video").duration;
document.getElementById("duration").innerHTML = duration;
但现在我的问题是我有[ObjectHTMLSpanElement]而不是0:00和NaN而不是20:03 ......
答案 0 :(得分:0)
我建议你在oncanplay
函数中初始化你的js代码,只要视频可以播放就会调用它。
对于时间问题,我会设置一个单独的计时器,每秒检查一次视频时间并相应地更新它:
var vid = document.querySelectorAll("video")[0];
var current = document.getElementById("current");
var total = document.getElementById("total");
vid.oncanplay = function() {
vid.ontimeupdate = function() {
current.innerHTML = Math.floor(vid.currentTime) + "s";
total.innerHTML = Math.floor(vid.duration) + "s";
}
}
.wrapper {
position: relative;
}
p {
position: absolute;
top: 0;
left: 0;
border: 2px solid black;
background: white;
margin: 0;
padding: 5px;
}
<div class="wrapper">
<video width="400" controls>
<source src="http://www.w3schools.com/html/mov_bbb.mp4" type="video/mp4">
<source src="http://www.w3schools.com/html/mov_bbb.ogg" type="video/ogg">
Your browser does not support HTML5 video.
</video>
<p>
Current time: <span id="current"></span><br />
Total time: <span id="total"></span>
</p>
</div>