video对象
兼容情况：
safari浏览器不支持webm格式
Chrome浏览器支持webm格式
ie8以及以下不支持video标签 , ie9支持video标签 ,但是支持mp4格式的
Firefox(火狐浏览器)支持ogv格式的视频
兼容性写法
video 标签 width height autoplay muted
poster带有预览图（海报图片）的视频播放器
选中video标签
var VideoNode = document.getElementById('myVideo');
src控制视频的来源
VideoNode.src = 'data/demo.ogv';
手动设置控件 controls
VideoNode.controls = true;
设置视频音量
VideoNode.volume = 0.5;
currentTime当前播放时间
快进效果
gogogo.onclick = function(){ VideoNode.currentTime = VideoNode.currentTime + 3; };
暂停 pause()
stopNode.onclick = function(){ VideoNode.pause(); };
播放play()
playNode.onclick = function(){ VideoNode.play(); };
load 刷新播放器的事件
reloadNode.onclick = function(){ VideoNode.src = 'data/demo.mp4'; VideoNode.load(); };
canplay 视频已经加载好 可以开始播放了
VideoNode.addEventListener('canplay',function(){
console.log('视频已经加载好 可以开始播放了');
});
requestFullscreen 让video标签变成全屏
VideoNode.webkitRequestFullscreen();
VideoNode.mozRequestFullScreen();
fullScreenNode.onclick = function(){ if(VideoNode.webkitRequestFullscreen){ VideoNode.webkitRequestFullscreen(); } else if(VideoNode.mozRequestFullScreen){ VideoNode.mozRequestFullScreen(); } };
volumechange 当音量更改时
VideoNode.onvolumechange = function(){ console.log('volumechange'); };
声音随机更改
volumeNode.onclick = function(){ VideoNode.volume = Math.random(); };
seeking 当用户开始拖动进度条时 就会触发的事件
var seekingNum = 0; VideoNode.onseeking = function(){ console.log('seeking...'); seekingNum++; seeking.innerHTML = seekingNum; };
seeked 当用户对视频的进度条并且已经完成操作时会触发的事件
var seekedNum = 0; VideoNode.onseeked = function(){ console.log('seeked...'); seekedNum++; seeked.innerHTML = seekedNum; };
timeupdate监听视频播放的状态
VideoNode.addEventListener('timeupdate',function(){
// 总时长，以分钟：秒的形式显示
let allTime = parseInt(VideoNode.duration/60)+':'+parseInt(VideoNode.duration%60);
// 当前时间，以分钟：秒的形式显示
let nowTime = parseInt(VideoNode.currentTime/60)+':'+parseInt(VideoNode.currentTime%60);
timeNode.innerHTML = nowTime+'/'+allTime;
})
readyState 视频的准备信息
console.log(VideoNode.readyState); setTimeout(function(){ console.log(VideoNode.readyState); },500);
playbackRate 查看或设置视频的一个播放速度
console.log(VideoNode.playbackRate)
Rate设置倍速
//Rate设置0.5倍速 RateNode.children[0].onclick = function(){ VideoNode.playbackRate = 0.5; }; //Rate设置1倍速 RateNode.children[1].onclick = function(){ VideoNode.playbackRate = 1; }; //Rate设置2倍速 RateNode.children[2].onclick = function(){ VideoNode.playbackRate = 2; };
loop的设置
loopNode.onclick = function(){ if(VideoNode.loop == false){ this.innerHTML = '循环'; VideoNode.loop = true; } else{ this.innerHTML = '不循环'; VideoNode.loop = false; } };
src返回的数据
console.log('src='+VideoNode.src);
currentSrc返回的数据
console.log('currentSrc='+VideoNode.currentSrc);
监听ended事件
VideoNode.addEventListener('ended',function(){
console.log('视频播放结束了');
VideoNode.play();
})
查看视频的网络状态
console.log(VideoNode.networkState)
手动设置控件 controls
VideoNode.controls = true;
手动设置静音 muted
VideoNode.muted = true;
自定义视频播放器
放图
doctype html>
<html>
<head>
<meta charset="utf-8">
<title>title>
<style type="text/css">
*{margin: 0;padding: 0;list-style: none;}
.outerNode{width: 540px;height: 332px;position: absolute;left: 50%;top: 50%;margin: -166px 0 0 -270px;box-shadow: 0 0 4px #5b606d;}
.outerNode .videoNode{
width: 540px;height: 305px;float: left;
background: black;
}
.outerNode .controlsNode{
width: 540px;height: 27px;float: left;background: url(images/ctrs_bg.gif) repeat-x;
}
.outerNode .controlsNode .playNode{
float: left;width: 15px;height: 17px;margin: 6px 0 0 14px;
background: url(images/playNode.png) no-repeat;cursor: pointer;
}
.outerNode .controlsNode .pauseNode{
float: left;width: 15px;height: 17px;margin: 6px 0 0 14px;
background: url(images/pause.png) no-repeat;cursor: pointer;
}
.outerNode .controlsNode .loadNode{width: 267px;height: 10px;margin: 9px 0 0 14px;float: left;background: url(images/load_bg.png) repeat-x;position: relative;}
.outerNode .controlsNode .loadNode .lineNode{
width: 0%;height: 7px;position: absolute;left: 0;top: 1px;
background: url(images/line_bg.png) repeat-x;
}
.outerNode .controlsNode .loadNode .lineNode .lineRight{
width: 2px;height: 100%;position: absolute;right: 0;top: 0;
background: url(images/line_r_bg.png) no-repeat;
}
.outerNode .controlsNode .loadNode .loadLeft{
height: 100%;width:3px ;position: absolute;left: 0;top: 0;
background: url(images/left_bg.png) no-repeat;z-index: 4;
}
.outerNode .controlsNode .loadNode .loadRight{
height: 100%;width:3px ;position: absolute;right: 0;top: 0;
background: url(images/right_bg.png) no-repeat;
}
.outerNode .controlsNode .loadNode .crlNode{width: 17px;height: 17px;background: url(images/crl_bg.png);position: absolute;left: -8.5px;top: -3.5px;cursor: pointer;z-index: 5;}
.outerNode .controlsNode .timeNode{
float: left;width: 75px;height: 10px;margin: 9px 0 0 9px;
}
.outerNode .controlsNode .timeNode span{font-size:10px;float: left;line-height: 10px;color: white; }
.outerNode .controlsNode .volumeNode{
width: 17px;height: 16px;float: left;margin: 5px 0 0 6px;
background: url(images/volume_bg.png);
}
.outerNode .controlsNode .volumeLine{
height: 8px;width: 61px;float: left;margin: 10px 0 0 4px;
background: url(images/volumeLine_bg.png) repeat-x;position: relative;
}
.outerNode .controlsNode .volumeLine .v_left{
width: 3px;height:100%;position: absolute;left: 0;top: 0;background: url(images/v_left.png) no-repeat;
}
.outerNode .controlsNode .volumeLine .v_right{
width: 3px;height:100%;position: absolute;right: 0;top: 0;background: url(images/v_right.png) no-repeat;
}
.outerNode .controlsNode .volumeLine .v_DragNode{width: 15px;height: 13px;position: absolute;left: 58.5px;top: -3.5px;background: url(images/vo_d.png) no-repeat;cursor: pointer;}
.outerNode .controlsNode .fullNode{
width:15px;height:17px;float: left;margin: 6px 0 0 35px;
background: url(images/full_bg.png) no-repeat;cursor: pointer;
transition: 0.7s;
}
.outerNode .controlsNode .fullNode:hover{
background: url(images/full_hover_bg.png) no-repeat;
}
style>
head>
<body>
<div class='outerNode'>
<video class='videoNode' src='data/imooc.mp4' poster="data/poster.jpg">video>
<div class='controlsNode'>
<div class='playNode'>div>
<div class='loadNode'>
<div class='loadLeft'>div>
<div class='loadRight'>div>
<div class='crlNode'>div>
<div class='lineNode'>
<div class='lineRight'>div>
div>
div>
<div class='timeNode'>
<span class='now'>00:00span>
<span> - span>
<span class='all'>4:30span>
div>
<div class='volumeNode'>div>
<div class='volumeLine'>
<div class='v_left'>div>
<div class='v_right'>div>
<div class='v_DragNode'>div>
div>
<div class='fullNode'>div>
div>
div>
<script type="text/javascript">
//播放暂停的控制
//PlayNode 播放器按钮
//VideoNode 播放器
//PlayBln 控制暂停播放的布尔值
//FullNode 全屏按钮
//nowNode 当前时间
//allNode 视频的全部时间
//LineNode 当前的进度条
//CrlNode 进度条按钮
//LoadNode 进度条外面的元素
var PlayNode = document.getElementsByClassName('playNode')[0],
VideoNode = document.getElementsByClassName('videoNode')[0],
FullNode = document.querySelector('.fullNode'),
nowNode = document.querySelector('.now'),
allNode = document.querySelector('.all'),
LineNode = document.querySelector('.lineNode'),
CrlNode = document.querySelector('.crlNode'),
LoadNode = document.querySelector('.loadNode'),
VDragNode = document.querySelector('.v_DragNode'),
PlayBln = true;
//播放、暂停的事件
PlayNode.onclick = function(){
//传统的通过布尔值去改变classname的方法
PlayBln = !PlayBln;
if(PlayBln == false){
this.className = 'pauseNode';
VideoNode.play();
}
else{
this.className = 'playNode';
VideoNode.pause();
}
};
//全屏按钮的事件
FullNode.onclick = function(){
if(VideoNode.webkitRequestFullscreen){
VideoNode.webkitRequestFullscreen();
}
else if(VideoNode.mozRequestFullScreen){
VideoNode.mozRequestFullScreen();
}
else{
VideoNode.requestFullscreen();
}
};
//解决最开始时间的NAN的问题
VideoNode.addEventListener('canplay',function(){
var needTime = parseInt(VideoNode.duration);
var s = needTime%60;
var m = parseInt(needTime / 60);
var timeNum = toDou(m)+':'+toDou(s);
allNode.innerHTML = timeNum;
},false);
//解决 时间不足10 的问题
function toDou(time){
return time<10?'0'+time:time;
}
//当视频播放的时候 需要当前的时间动起来
VideoNode.addEventListener('timeupdate',function(){
//目前的 百分比进度
LineNode.style.width = VideoNode.currentTime/VideoNode.duration*100+'%';
CrlNode.style.left = LineNode.offsetWidth - 8.5 + 'px'
var needTime = parseInt(VideoNode.currentTime);
var s = needTime%60;
var m = parseInt(needTime / 60);
var timeNum = toDou(m)+':'+toDou(s);
nowNode.innerHTML = timeNum;
},false);
//声音的拖拽按钮
VDragNode.onmousedown = function(e){
var ev = e || event;
var l = ev.clientX - this.offsetLeft;
document.onmousemove = function(e){
var ev = e || event;
var needX = ev.clientX - l;
var maxX = VDragNode.parentNode.offsetWidth - 2.5;
needX = needX < -2.5 ? - 2.5 : needX;
needX = needX > maxX ? maxX : needX;
//计算0 - 1
var lastVolume = (VDragNode.offsetLeft + 2) / VDragNode.parentNode.offsetWidth ;
VideoNode.volume = lastVolume < 0 ? 0 : lastVolume;
VDragNode.style.left = needX + 'px';
};
document.onmouseup = function(e){
document.onmousemove = document.onmouseup = null;
}
return false;
}
//拖拽进度条按钮
CrlNode.onmousedown = function(e){
var ev = e || event;
var l = ev.clientX - this.offsetLeft;
VideoNode.pause();
document.onmousemove = function(e){
var ev = e || event;
var needX = ev.clientX - l;
var maxX = LoadNode.offsetWidth - 8.5;
needX = needX < -8.5 ? -8.5 : needX;
needX = needX > maxX ? maxX : needX;
CrlNode.style.left = needX + 'px';
LineNode.style.width = (CrlNode.offsetLeft+9)/LoadNode.offsetWidth*100 + '%';
};
document.onmouseup = function(){
document.onmousemove = document.onmouseup = null;
VideoNode.currentTime = VideoNode.duration * (CrlNode.offsetLeft+9)/LoadNode.offsetWidth;
if(PlayBln == false){
//console.log(1);
PlayNode.className = 'pauseNode';
VideoNode.play();
}
else{
//console.log(2);
PlayNode.className = 'playNode';
VideoNode.pause();
}
};
return false;
};
script>
body>
html>