怀念战友 - 刀郎
本帖最后由 亚伦影音工作室 于 2024-10-21 17:59 编辑 <br /><br /><style type="text/css">#papa{
position: relative;
width: 1286px;
height: 720px;
margin-left:-300px;
margin-top:200px;
border: 1px solid rgba(36, 201, 219,.95);
border-radius: 2px;
background:#000;
overflow: hidden;
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width:200px;text-align:center;animation:rot 10s linear infinite;
position: absolute;filter:drop-shadow(#000 0px 0 1px);
z-index: 40;
}
@keyframes rot { to { transform: rotate(2turn);} }
#mdiv:hover {}
#lrc {
--state: paused;
--motion: cover2;
--tt: 2s;
--bg: #880000;
position: absolute;z-index: 6;
left: 50%;
transform: translate(-50%);
top: 86%;
font:normal 3em 华文新魏;
color: #000;
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filter:drop-shadow(#FFFFFF 1px 0 0)drop-shadow(#FFFFFF 0 1px 0)drop-shadow(#FFFFFF -1px 0 0) drop-shadow(#FFFFFF 0 -1px0);
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position: absolute;
content: attr(data-lrc);
width: 20%;
height: 100%;
color: transparent;
overflow: hidden;
white-space: pre;
background: var(--bg);
-webkit-background-clip: text;
animation: var(--motion) var(--tt) linear forwards;
animation-play-state: var(--state);
}
@keyframes cover1{0% { width: 0%;}100% { width: 100%;}}
@keyframes cover2 { 0% { width: 0%;}100% { width: 100%;}}
#fullscreen { position: absolute; bottom:92%; left:85%;font:900 2em/0em 楷体;color:#ffffff; opacity: 1; cursor: pointer; z-index: 111}
</style >
<div id="papa" >
<span id="fullscreen">全屏欣赏</span>
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<div id="testImg">
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<video class="vid" src="https://video-qn.51miz.com/preview/video/00/00/14/66/V-146637-19720D92.mp4" loop muted autoplay=""></video>
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<audio id="aud" src="https://s2.ananas.chaoxing.com/sv-w7/audio/d7/c7/2b/094ec275f8f3cb0bc0b1528cb31baaad/audio.mp3" autoplay loop></audio>
<div id="mdiv">
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<div data-lrc="视频转场效果" id="lrc">视频转场效果</div>
</div>
<script>
(function() {
const vids = document.querySelectorAll('.vid');
var mState = () => {
vids.forEach(vid => aud.paused ? vid.pause() : vid.play());
};
aud.onplaying = aud.onpause = () => mState();
})();
mdiv.onclick = () => aud.paused ? (aud.play(),vid1.play() ): (aud.pause(),vid1.pause());
aud.addEventListener('playing', () =>mdiv.style.animationPlayState = 'running');
aud.addEventListener('pause', () =>mdiv.style.animationPlayState = 'paused');
var image = document.getElementById("testImg");
let mState = () => aud.paused ? image.classList.add('stop'):image.classList.remove('stop');
aud.addEventListener('play', () => mState());
aud.addEventListener('pause', () => mState());
let fs = true;
fullscreen.onclick = () => {
fs ? (fullscreen.innerText = '退出全屏',papa.requestFullscreen()) : (fullscreen.innerText = '全屏欣赏', document.exitFullscreen());
fs = !fs;
};
</script>
<script >
(function() {
/*原始lrc歌词*/
let lrcStr = `怀念战友 - 刀郎
词:雷振邦
曲:雷振邦
天山脚下是我可爱的家乡
当我离开他的时候
好像那哈密瓜断了瓜秧
白杨树下住着我心上的姑娘
当我和她分别后
好像那都它尔闲挂在墙上
瓜秧断了哈密瓜依然香甜
琴师回来都它尔还会再响
当我永别了战友的时候
好像那雪崩飞奔万丈
啊
亲爱的战友
我再不能看到你雄伟的身影
和蔼的脸庞
啊
亲爱的战友
你也再不能听我弹琴
听我歌唱
白杨树下住着我心上的姑娘
当我和她分别后
好像那都它尔闲挂在墙上
瓜秧断了哈密瓜依然香甜
琴师回来都它尔还会再响
`;
/*变量 :mKey - 当前歌词索引;mFlag :调用关键帧动画索引;averAdd :平均值补偿*/
let mKey = 0, mFlag = true, averAdd = 0.3;
/*函数 :获取每句歌词用时,歌词用时若超过平均值则取平均值,最后一句歌词则取平均值*/
let lrcTime = (ar) => {
let tmpAr = [];
for(j = 0; j <ar.length - 1; j ++) {
if(j !== ar.length - 1) tmpAr = parseFloat((ar - ar).toFixed(1));
}
let aver = parseInt(tmpAr.reduce((a,b) => a + b) / (tmpAr.length - 1)) + averAdd;
tmpAr.push(aver);
tmpAr.forEach((item,key) => {
ar = item > aver ? aver : item;
});
return ar;
};
/*函数 :从原始lrc歌词获取信息并存入 n*3 数组*/
let getLrcAr = (text) => {
let lrcAr = [];
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for(x of text.split('\n')) {
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let re = /\d+[\.:]\d+([\.:]\d+)?/g;
let geci = x.replace(re,'');
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geci = geci.replace(/[\[\]\'\"\t,]s?/g,'');
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ar = ;
lrcAr.push(ar);
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lrcAr.sort((a,b)=> a - b);
return(lrcTime(lrcAr));
};
/*函数 :模拟显示同步歌词*/
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lrc.innerHTML = lrcAr;
lrc.dataset.lrc = lrcAr;
lrc.style.setProperty('--motion', name);
lrc.style.setProperty('--tt', time + 's');
lrc.style.setProperty('--state', 'running');
mKey += 1;
mFlag = !mFlag;
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/*函数 :处理当前歌词索引 mKey*/
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mKey = j - 1;
break;
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/*格式化时间信息*/
let toMin = (val) => {
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val = Math.floor(val);
let min = parseInt(val / 60),
sec = parseFloat(val % 60);
if (min < 10) min = '0' + min;
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return min + ':' + sec;
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/*函数 :关键帧动画状态切换*/
let mState = () => aud.paused ? (lrc.style.setProperty('--state','paused')) : (lrc.style.setProperty('--state','running'));
/*监听播放进度*/
aud.addEventListener('timeupdate', () => {
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if (aud.currentTime >= lrcAr) {
cKey = j;
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else continue;
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});
aud.addEventListener('pause', () => mState());/*监听暂停事件*/
aud.addEventListener('play', () => mState());/*监听播放事件*/
aud.addEventListener('seeked', () => calcKey());/*监听查询事件*/
let lrcAr = getLrcAr(lrcStr); /*获得歌词数组*/
})();
</script>
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