我希望能够在单击按钮时播放视频,然后在 中使另一个视频淡入淡出,而在单击另一个按钮时淡出当前视频。这需要是一种动态过渡,用户随机单击(即从1到3,反之亦然)。这是我当前的代码,没有任何褪色:
JS:
<script>
video = document.getElementById('video');
source = document.getElementById('source');
window.PlayVideo = function(srcVideo){
video.pause();
source.setAttribute('src', srcVideo);
video.load();
video.play();
}
</script>
HTML:
<a onclick="PlayVideo('fire.webm');"><button>Play Video 1</button></a>
<a onclick="PlayVideo('smoke.webm');"><button>Play Video 2</button></a>
<a onclick="PlayVideo('merged-rain.webm');"><button>Play Video 3</button></a>
<div id="xxxxxx">
<div>
<video id="video" width="520" height="360" loop muted controls><source id = "source"/></video>
</div>
</div>
示例链接:http://nov-exl.dx.am/movie%20change.html
任何帮助,将不胜感激,谢谢。
答案 0 :(得分:0)
怎么样呢?
var video = document.getElementById('video');
var source = document.getElementById('source');
var timer = void 0;
window.PlayVideo = async function(srcVideo){
source.setAttribute('src', srcVideo);
fade('out');
try {
await video.pause();
await video.load();
await video.play();
fade('in');
} catch(err) {
console.log("Promise rejected");
}
}
function fade(opts){
if(typeof opacityTimer !== 'undefined') clearInterval(opacityTimer);
var opacity = opts === 'in' ? 0 : 1;
opacityTimer = setInterval(function() {
if ((opts === 'in' && opacity >= 1) ||(opts=== 'out' && opacity <=0) ){
clearInterval(timer);
}
opacity = opts === 'in' ? opacity+(opacity * 0.1 || 0.1) : opacity-(opacity * 0.1 || 0.1);
video.style.opacity = opacity;
video.style.filter = 'alpha(opacity=' + opacity * 100 + ")";
}, 25);
}