video自动撑满父级元素
最近有个需求,将视频充满,并可以随父元素缩放
先说说试过哪些方法:
1:css3:object-fit: fill;(可惜ie不支持)
2:使用css控制,借鉴的其他大神的,但是对于我,竟然一点都不好使,忧伤。实现如下代码可见:
/* 父元素 */
.videoWrap{
position: relative;
height: 0;
width: 80%;
padding-bottom: 45%; //需要计算得到( (video的高 / video的宽) * 父级的width ,使用的是百分比 )
}
.videoWrap video{
position: absolute;
height: 100%;
width: 100%;
top: 0;
left: 0;
}
以上方式都无法实现
而我要实现的最终效果如下:
左侧昆虫为视频,而且视频大小不做控制
是通过canvas定时画图实现的
<div class="position-relative w-100 h-100" ref="videoWrap">
<video id="video" ref="video"
x5-playsinline="true"
playsinline="true"
webkit-playsinline="true"
x5-video-player-type="h5"
x5-video-player-fullscreen="true"
:src="updataService + '/' + formdata.video.url"
preload
autoplay
muted
class="position-absolute"
style="right:0;top:0;z-index:-1;zoom:1;opacity:0;">
</video>
<canvas id="myCanvas" class="d-block w-100 h-100" ref="canvas">
</canvas>
</div>
var self = this;
this.vm = new Vue({
el: '#loginconfig',
data: {
formdata: {
video: {
url: '25a39632de654947bcb4ec936f78489c',
name: 'mov.mp4'
}
},
updataService: 'http://11.11.180.217:6004'
},
computed: {}
},
mounted: function () {
this.$refs.video.controls = false;
var v = this.$refs.video;
var c = this.$refs.canvas;
var ctx = c.getContext('2d');
this.$refs.canvas.width = this.$refs.videoWrap.offsetWidth;
this.$refs.canvas.height = this.$refs.videoWrap.offsetHeight;
var cwidth = this.$refs.canvas.offsetWidth;
var cheight = this.$refs.canvas.offsetHeight;
// 初始化定时器
self.timer = null;
// 每0.02秒画一张图片
v.addEventListener('play', function () {
self.timer = window.setInterval(function () {
ctx.drawImage(v, 0, 0, cwidth, cheight);
}, 20);
}, false);
v.addEventListener('ended', function () {
clearInterval(self.timer);
}, false);
},
methods: {},
,
destroyed: function () {
clearInterval(self.timer);
}
});
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