如何使它在一个页面上只有一个嵌入的视频播放的时间作为一个浏览器扩展，youtube

问题描述 投票：0回答：1

一次播放一个YouTube视频

这条线看起来接近回答了我的问题。

我还是会去一些新闻网站和网站的视频教程，有一长串的嵌入式视频。

我想我可以做一个插件，在每个视频元素和嵌入元素中添加javascript，关闭自动播放，并告诉除播放的元素以外的所有元素停止播放。

我不知道具体的代码，但是由于我在搜索发布者的解决方案，没有找到任何东西，直到我开始写这个，相关的搜索得到了很好的信息。

https:/www.openshot.orgvideos 是这样的页面的一个例子。

youtube video-streaming html5-video browser-extension
1个回答
0
投票

一次只能嵌入一个YouTube视频的HTML...

几天前，当我在做我的视频旋转木马的时候，我也面临着同样的问题... 最后，我有一个解决方案，现在... ... 首先使用 <iframe> 标签，用于嵌入youtube视频，并在视频的url结尾处输入以下内容。?html5=1&enablejsapi=1... 然后直接在你的项目中加入以下JavaScript代码，不需要对其进行任何编辑!

所需功能的JavaScript代码如下--。

      <script>
    var ytplayerList;

    function onPlayerReady(e) {
        var video_data = e.target.getVideoData(),
            label = video_data.video_id+':'+video_data.title;
        e.target.ulabel = label;
        console.log(label + " is ready!");

    }
    function onPlayerError(e) {
        console.log('[onPlayerError]');
    }
    function onPlayerStateChange(e) {
        var label = e.target.ulabel;
        if (e["data"] == YT.PlayerState.PLAYING) {
            console.log({
                event: "youtube",
                action: "play:"+e.target.getPlaybackQuality(),
                label: label
            });
            //if one video is play then pause other
            pauseOthersYoutubes(e.target);
        }
        if (e["data"] == YT.PlayerState.PAUSED) {
            console.log({
                event: "youtube",
                action: "pause:"+e.target.getPlaybackQuality(),
                label: label
            });
        }
        if (e["data"] == YT.PlayerState.ENDED) {
            console.log({
                event: "youtube",
                action: "end",
                label: label
            });
        }
        //track number of buffering and quality of video
        if (e["data"] == YT.PlayerState.BUFFERING) {
            e.target.uBufferingCount?++e.target.uBufferingCount:e.target.uBufferingCount=1; 
            console.log({
                event: "youtube",
                action: "buffering["+e.target.uBufferingCount+"]:"+e.target.getPlaybackQuality(),
                label: label
            });
            //if one video is play then pause other, this is needed because at start video is in buffered state and start playing without go to playing state
            if( YT.PlayerState.UNSTARTED ==  e.target.uLastPlayerState ){
                pauseOthersYoutubes(e.target);
            }
        }
        //last action keep stage in uLastPlayerState
        if( e.data != e.target.uLastPlayerState ) {
            console.log(label + ":state change from " + e.target.uLastPlayerState + " to " + e.data);
            e.target.uLastPlayerState = e.data;
        }
    }
    function initYoutubePlayers(){
        ytplayerList = null; //reset
        ytplayerList = []; //create new array to hold youtube player
        for (var e = document.getElementsByTagName("iframe"), x = e.length; x-- ;) {
            if (/youtube.com\/embed/.test(e[x].src)) {
                ytplayerList.push(initYoutubePlayer(e[x]));
                console.log("create a Youtube player successfully");
            }
        }

    }
    function pauseOthersYoutubes( currentPlayer ) {
        if (!currentPlayer) return;
        for (var i = ytplayerList.length; i-- ;){
            if( ytplayerList[i] && (ytplayerList[i] != currentPlayer) ){
                ytplayerList[i].pauseVideo();
            }
        }  
    }
    //init a youtube iframe
    function initYoutubePlayer(ytiframe){
        console.log("have youtube iframe");
        var ytp = new YT.Player(ytiframe, {
            events: {
                onStateChange: onPlayerStateChange,
                onError: onPlayerError,
                onReady: onPlayerReady
            }
        });
        ytiframe.ytp = ytp;
        return ytp;
    }
    function onYouTubeIframeAPIReady() {
        console.log("YouTubeIframeAPI is ready");
        initYoutubePlayers();
    }
    var tag = document.createElement('script');
    //use https when loading script and youtube iframe src since if user is logging in youtube the youtube src will switch to https.
    tag.src = "https://www.youtube.com/iframe_api";
    var firstScriptTag = document.getElementsByTagName('script')[0];
    firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);    

  </script>

我建议你把它加入到HTML页面本身......

以下是解决方法的实战案例!!! 

/*javascipt for the following slider*/
/* Create an array to hold the different image positions */
      var itemPositions = [];
      var numberOfItems = $('#scroller .item').length;
      
      /* Assign each array element a CSS class based on its initial position */
      function assignPositions() {
        for (var i = 0; i < numberOfItems; i++) {
          if (i === 0) {
            itemPositions[i] = 'left-hidden';
          } else if (i === 1) {
            itemPositions[i] = 'left';
          } else if (i === 2) {
            itemPositions[i] = 'middle';
          } else if (i === 3) {
            itemPositions[i] = 'right';
          } else {
            itemPositions[i] = 'right-hidden';
          }
        }
        /* Add each class to the corresponding element */
        $('#scroller .item').each(function(index) {
          $(this).addClass(itemPositions[index]);
        });
      }
      
      /* To scroll, we shift the array values by one place and reapply the classes to the images */
      function scroll(direction) {
        if (direction === 'prev') {
          itemPositions.push(itemPositions.shift());
        } else if (direction === 'next') {
          itemPositions.unshift(itemPositions.pop());
        }
        $('#scroller .item').removeClass('left-hidden left middle right right-hidden').each(function(index) {
          $(this).addClass(itemPositions[index]);
        });
      }
      
      /* Do all this when the DOMs ready */
      $(document).ready(function() {
      
        assignPositions();
        var autoScroll = window.setInterval("scroll('next')", 4000);
      
        /* Hover behaviours */
        $('#scroller').hover(function() {
          window.clearInterval(autoScroll);
          $('.nav').stop(true, true).fadeIn(200);
        }, function() {
          $('.nav').stop(true, true).fadeOut(200);
        });
      
        /* Click behaviours */
        $('.prev').click(function() {
          scroll('prev');
        });
        $('.next').click(function() {
          scroll('next');
        });
      
      });
html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  width: 100vw;
  user-select: none;
  -ms-overflow-style: none;
}

body::-webkit-scrollbar {
  display: none;
}

.carousel {
  background-image: url(carousel1.jpg);
  width: 100vw;
  height: 52.5vw;
  background-size: 100vw 52.5vw;
}

#scroller {
  position: absolute;
  top: 12vw;
  left: 25vw;
  width: 50vw;
  height: 28vw;
  margin: 0 auto;
  padding: 0;
  -webkit-perspective: 40vw;
  -moz-perspective: 50vw;
  -o-perspective: 50vw;
}

#scroller .item {
  width: 50vw;
  height: 28vw;
  display: block;
  position: absolute;
  border-radius: 1vw;
  -webkit-box-reflect: below 0px -webkit-gradient(linear, left top, left bottom, from(transparent), color-stop(.85, transparent), to(rgba(255, 255, 255, 0.15)));
  -webkit-transition: all 0.4s ease-in-out;
  -moz-transition: all 0.4s ease-in-out;
  -o-transition: all 0.4s ease-in-out;
  z-index: 0;
}
/* Since inset shadows don't play nice with images, we'll create a pseudo element and apply our image styling to that instead */

#scroller .item .youtube-video {
  display: block;
  border-radius: 1vw;
}

#scroller .left {
  pointer-events: none;
  -webkit-transform: rotateY(25deg) translateX(-320px) skewY(-5deg) scale(0.4, 0.6);
  -moz-transform: rotateY(25deg) translateX(-320px) skewY(-5deg) scale(0.4, 0.6);
  -o-transform: rotateY(25deg) translateX(-320px) skewY(-5deg) scale(0.4, 0.6);
}

#scroller .middle {
  z-index: 1;
  -webkit-transform: rotateY(0deg) translateX(0) scale(1);
  -moz-transform: rotateY(0deg) translateX(0) scale(1);
  -o-transform: rotateY(0deg) translateX(0) scale(1);
}

#scroller .right {
  pointer-events: none;
  -webkit-transform: rotateY(-25deg) translateX(320px) skewY(5deg) scale(0.4, 0.6);
  -moz-transform: rotateY(-25deg) translateX(320px) skewY(5deg) scale(0.4, 0.6);
  -o-transform: rotateY(-25deg) translateX(320px) skewY(5deg) scale(0.4, 0.6);
}

#scroller .left-hidden {
  opacity: 0;
  z-index: -1;
  pointer-events: none;
  -webkit-transform: rotateY(25deg) translateX(-430px) skewY(-5deg) scale(0.3, 0.5);
  -moz-transform: rotateY(25deg) translateX(-430px) skewY(-5deg) scale(0.3, 0.5);
  -o-transform: rotateY(25deg) translateX(-430px) skewY(-5deg) scale(0.3, 0.5);
}

#scroller .right-hidden {
  opacity: 0;
  z-index: -1;
  pointer-events: none;
  -webkit-transform: rotateY(-25deg) translateX(430px) skewY(5deg) scale(0.3, 0.5);
  -moz-transform: rotateY(-25deg) translateX(430px) skewY(5deg) scale(0.3, 0.5);
  -o-transform: rotateY(-25deg) translateX(430px) skewY(5deg) scale(0.3, 0.5);
}

.nav {
  position: absolute;
  width: 50vw;
  height: 2vw;
  margin: 14vw 0 0;
  z-index: 2;
  display: none;
}

.prev,
.next {
  position: absolute;
  display: block;
  height: 2vw;
  width: 2vw;
  background-color: rgba(255, 255, 255, 0.85);
  border-radius: 2vw;
  color: #1d1919;
  bottom: 20px;
  font-size: 2vw;
  text-align: center;
  line-height: 1.5vw;
  cursor: pointer;
  border: 2px solid #000;
}

.prev {
  left: 1vw;
}

.next {
  left: inherit;
  right: 1vw;
}

.prev:hover,
.next:hover {
  border: 0.01vw solid #000;
}
<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">    
    <link rel="stylesheet" type="text/css" href="index1.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
    <!-- Load font awesome icons -->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">

    <title>Gully Ball - carousel</title>
    <link rel="icon" href="logo.png" type="image/jpg" sizes="18x18">

  </head>
  <body>
    <div class="carousel">
      <div class="slideshow-container" id="scroller">
  
        <div class="nav">
          <a class="prev">&laquo;</a>
          <a class="next">&raquo;</a>
        </div>
  
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/xOiVl3qaFkw?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/keTYvc-xU64?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div> 
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/ejlFMXU_Lg0?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/73f3QPsm80Y?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/z3L8EqCb958?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/uKkFIjsLVOo?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/W4gVYFMBU88?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/EsU5tKG4rxk?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/DyI57PYkmDA?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/CbZpZpUb_5A?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/yfOsin7OcA0?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/6cJcfVv35oU?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/lTwl7UQN_CQ?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/Sc77-58rtlI?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/GbN5LBNAYMY?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
        <div class="item">
          <iframe class="youtube-video" width="100%" height="100%" src="https://www.youtube.com/embed/UYNwSeupjUM?html5=1&enablejsapi=1;rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        </div>
      </div>
    </div>  
      <script>
        var ytplayerList;

        function onPlayerReady(e) {
            var video_data = e.target.getVideoData(),
                label = video_data.video_id+':'+video_data.title;
            e.target.ulabel = label;
            console.log(label + " is ready!");
         
        }
        function onPlayerError(e) {
            console.log('[onPlayerError]');
        }
        function onPlayerStateChange(e) {
            var label = e.target.ulabel;
            if (e["data"] == YT.PlayerState.PLAYING) {
                console.log({
                    event: "youtube",
                    action: "play:"+e.target.getPlaybackQuality(),
                    label: label
                });
                //if one video is play then pause other
                pauseOthersYoutubes(e.target);
            }
            if (e["data"] == YT.PlayerState.PAUSED) {
                console.log({
                    event: "youtube",
                    action: "pause:"+e.target.getPlaybackQuality(),
                    label: label
                });
            }
            if (e["data"] == YT.PlayerState.ENDED) {
                console.log({
                    event: "youtube",
                    action: "end",
                    label: label
                });
            }
            //track number of buffering and quality of video
            if (e["data"] == YT.PlayerState.BUFFERING) {
                e.target.uBufferingCount?++e.target.uBufferingCount:e.target.uBufferingCount=1; 
                console.log({
                    event: "youtube",
                    action: "buffering["+e.target.uBufferingCount+"]:"+e.target.getPlaybackQuality(),
                    label: label
                });
                //if one video is play then pause other, this is needed because at start video is in buffered state and start playing without go to playing state
                if( YT.PlayerState.UNSTARTED ==  e.target.uLastPlayerState ){
                    pauseOthersYoutubes(e.target);
                }
            }
            //last action keep stage in uLastPlayerState
            if( e.data != e.target.uLastPlayerState ) {
                console.log(label + ":state change from " + e.target.uLastPlayerState + " to " + e.data);
                e.target.uLastPlayerState = e.data;
            }
        }
        function initYoutubePlayers(){
            ytplayerList = null; //reset
            ytplayerList = []; //create new array to hold youtube player
            for (var e = document.getElementsByTagName("iframe"), x = e.length; x-- ;) {
                if (/youtube.com\/embed/.test(e[x].src)) {
                    ytplayerList.push(initYoutubePlayer(e[x]));
                    console.log("create a Youtube player successfully");
                }
            }
            
        }
        function pauseOthersYoutubes( currentPlayer ) {
            if (!currentPlayer) return;
            for (var i = ytplayerList.length; i-- ;){
                if( ytplayerList[i] && (ytplayerList[i] != currentPlayer) ){
                    ytplayerList[i].pauseVideo();
                }
            }  
        }
        //init a youtube iframe
        function initYoutubePlayer(ytiframe){
            console.log("have youtube iframe");
            var ytp = new YT.Player(ytiframe, {
                events: {
                    onStateChange: onPlayerStateChange,
                    onError: onPlayerError,
                    onReady: onPlayerReady
                }
            });
            ytiframe.ytp = ytp;
            return ytp;
        }
        function onYouTubeIframeAPIReady() {
            console.log("YouTubeIframeAPI is ready");
            initYoutubePlayers();
        }
        var tag = document.createElement('script');
        //use https when loading script and youtube iframe src since if user is logging in youtube the youtube src will switch to https.
        tag.src = "https://www.youtube.com/iframe_api";
        var firstScriptTag = document.getElementsByTagName('script')[0];
        firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);    
                
      </script>
  </body>
</html>

祝你有个愉快的一天! 致敬，Om Chaudhary

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