Q

如何改變嵌入Youtube視頻的速度

2017-01-10 44 views 1 likes

1

我在網站中嵌入了一個YouTube視頻，並希望改變這個視頻的速度。我知道可以在HTML5視頻中更改速度（請參閱How to change the playing speed of videos in HTML5?）。問題是Youtube視頻作爲iframe嵌入。如何改變嵌入Youtube視頻的速度

我發現此代碼jsfiddle.net/jpreynat/e11oy0eu/，但它只適用於臺式機，不適用於移動設備。

是否有可能改變每臺設備上的Youtube視頻速度？

2017-01-10 Mboe5000

+0

我試圖從http://jsfiddle.net/jpreynat/e11oy0eu/ 但YouTube播放器API僅適用於臺式機的代碼。另外我嘗試從Youtube iframe獲取視頻播放器並通過播放器屬性更改速度。由於跨網站腳本，這是不可能的： ' <script type ='text/javascript'> var frame = document.getElementById（」myf「）; var fdoc = frame.contentDocument; fdoc.getElementsByTagName（「video」）[0] .playbackRate = 2; </script>' – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/7398200/">Mboe5000</a></span> <span></span> </small> </span> </p> </div> </div> </div> </div> </div> </article> </div> <div class="answer-title"> <span class="text-logo margin-top-sm">A</span> <h2 class="title h4">回答</h2> </div> <div class="item-description text-md markdown-body margin-bottom-40 voidso"> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">3<i class="fa fa-thumbs-up"></i></span> </div> <div class="post-offset"> <div class="answer fmt"> <p>嘗試使用的iframe的postMessage傳遞setPlaybackRate命令率參數</p> <pre><code class="prettyprint-override">var playbackRate = 2; var data = {event: 'command', func: 'setPlaybackRate', args: [playbackRate, true]}; var message = JSON.stringify(data); $('#iframe1')[0].contentWindow.postMessage(message, '*'); </code></pre> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/41569037">來源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2017-01-10 12:36:33</span> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/6160662/">Viney</a></span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div> </div> </article> <div> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6208739752673518" data-ad-slot="1038284119" data-ad-format="auto" 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