h5 的video視頻控件
阿新 • • 發佈:2018-12-16
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h5 的video視頻控件
由於html5的流行,其中的video視頻的使用很流行,使得可恨的IE9也能與時俱進了。
video所支持的格式有mp4、ogg和wav三種。
例:
HTML5 Video基礎標簽
`
<video id="myVideo" controls poster="video.jpg" width="640" height="320" > <source src="video.mp4" type="video/mp4" /> <source src="video.wav" type="video/wav" /> <source src="video.ogv" type="video/ogg" /> <p>Your browser does not support the video tag.</p> </video>`
下面制作Video的控件controls
本人是通過jQuery來進行獲取標簽及相應的控件使用操作的
Video Play/Pause Controls 播放/暫停 按鈕
通過jQuery來控制video的播放、暫停
jQuery代碼
$(‘.btnPlay‘).on(‘click‘, function() {
if(video[0].paused) {
video[0].play();
}
else {
video[0].pause();
}
return false;
};
html代碼
<div class="control">
<a href="#" class="btnPlay">Play/Pause</a>
</div>
顯示視頻播放時間和持續時間
看視頻肯定最好要有個時間的概念啦!!!
jQuery代碼
video.on(‘loadedmetadata‘, function() {
$(‘.duration‘).text(video[0].duration);
});
//update HTML5 video current play time
video.on(‘timeupdate‘, function() {
$(‘.current‘).text(video[0].currentTime);
});
html代碼
<div class="progressTime">
當前播放時間: <span class="current"></span>
總時間: <span class="duration"></span>
</div>
視頻進度條
動態模擬時間
css樣式
.progressBar
{
position: relative;
width: 100%;
height: height:10px;
backgroud-color: #000;
}
.timeBar
{
position: absolute;
top: 0;
left: 0;
width: 0;
height: 100%;
background-color: #ccc;
}
jQuery代碼
//get HTML5 video time duration
video.on(‘loadedmetadata‘, function() {
$(‘.duration‘).text(video[0].duration));
});
//update HTML5 video current play time
video.on(‘timeupdate‘, function() {
var currentPos = video[0].currentTime; //Get currenttime
var maxduration = video[0].duration; //Get video duration
var percentage = 100 * currentPos / maxduration; //in %
$(‘.timeBar‘).css(‘width‘, percentage+‘%‘);
});
var timeDrag = false; /* Drag status */
$(‘.progressBar‘).mousedown(function(e) {
timeDrag = true;
updatebar(e.pageX);
});
$(document).mouseup(function(e) {
if(timeDrag) {
timeDrag = false;
updatebar(e.pageX);
}
});
$(document).mousemove(function(e) {
if(timeDrag) {
updatebar(e.pageX);
}
});
//update Progress Bar control
var updatebar = function(x) {
var progress = $(‘.progressBar‘);
var maxduration = video[0].duration; //Video duraiton
var position = x - progress.offset().left; //Click pos
var percentage = 100 * position / progress.width();
//Check within range
if(percentage > 100) {
percentage = 100;
}
if(percentage < 0) {
percentage = 0;
}
//Update progress bar and video currenttime
$(‘.timeBar‘).css(‘width‘, percentage+‘%‘);
video[0].currentTime = maxduration * percentage / 100;
};
html代碼
<div class="progressBar">
<div class="timeBar"></div>
</div>
緩沖欄
看視頻時緩沖加載了多少
樣式
<style>
.progressBar {
position: relative;
width: 100%;
height: height:10px;
backgroud-color: #000;
}
.bufferBar {
position: absolute;
top: 0;
left: 0;
width: 0;
height: 100%;
background-color: #ccc;
}
</style>
<div class="progressBar">
<div class="bufferBar"></div>
</div>
Html5 Video緩沖屬性將返回一個對象的緩存範圍.因此,我們將使用緩存數據的最後一個值.
//loop to get HTML5 video buffered data
var startBuffer = function() {
var maxduration = video[0].duration;
var currentBuffer = video[0].buffered.end(0);
var percentage = 100 * currentBuffer / maxduration;
$(‘.bufferBar‘).css(‘width‘, percentage+‘%‘);
if(currentBuffer < maxduration) {
setTimeout(startBuffer, 1000);
}
};
setTimeout(startBuffer, 1000);
音量控制
當然啦!看視頻肯定得調個音量哦!!!
html代碼
<a href="#" class="muted" >Mute/Unmute</a>
<div class="volumeBar">
<div class="volume"></div>
</div>
jQuery代碼
//Mute/Unmute control clicked
$(‘.muted‘).click(function() {
video[0].muted = !video[0].muted;
return false;
});
//Volume control clicked
$(‘.volumeBar‘).on(‘mousedown‘, function(e) {
var position = e.pageX - volume.offset().left;
var percentage = 100 * position / volume.width();
$(‘.volumeBar‘).css(‘width‘, percentage+‘%‘);
video[0].volume = percentage / 100;
});
快進/快退 倒帶控制
Video有個屬性playbackrate來控制視屏的播放進程
html代碼
<div class="control">
<a href="#" class="ff">Fast Forward</a>
<a href="#" class="rw">Rewind</a>
<a href="#" class="sl">Slow Motion</a>
</div>
jQuery代碼
//Fast forward control
$(‘.ff‘).on(‘click‘, function() {
video[0].playbackrate = 3;
return false;
});
//Rewind control
$(‘.rw‘).on(‘click‘, function() {
video[0].playbackrate = -3;
return false;
});
//Slow motion control
$(‘.sl‘).on(‘click‘, function() {
video[0].playbackrate = 0.5;
return false;
});
然而很不幸的是:FireFox不支持playbackrate屬性.以及有些版本的chrome瀏覽器不支持負值(倒帶).到目前為止,只有Safri瀏覽器完全支持.所以請大家註意啦!
全屏播放
jQuery代碼
$(‘.fullscreen‘).on(‘click‘, function() {
//For Webkit
video[0].webkitEnterFullscreen();
//For Firefox
video[0].mozRequestFullScreen();
return false;
});
開燈關燈控制
jQuery代碼
$(‘.btnLight‘).click(function() {
if($(this).hasClass(‘on‘)) {
$(this).removeClass(‘on‘);
$(‘body‘).append(‘<div class="overlay"></div>‘);
$(‘.overlay‘).css({
‘position‘:‘absolute‘,
‘width‘:100+‘%‘,
‘height‘:$(document).height(),
‘background‘:‘#000‘,
‘opacity‘:0.9,
‘top‘:0,
‘left‘:0,
‘z-index‘:999
});
$(‘#myVideo‘).css({
‘z-index‘:1000
});
}
else {
$(this).addClass(‘on‘);
$(‘.overlay‘).remove();
}
return false;
});
好了!終於給整的差不多了!!!
h5 的video視頻控件