倍速播放代码

html代码
<div>
   <video  id="video1" style="width: 700px;height: 400px;" autobuffer controls src="lib/js/patient/ship.mp4" type="video/mp4"></video>
    <p>选中倍速播放率:
        <select id="double">
            <option value="0.5">0.5</option>
            <option value="1">1</option>
            <option value="1.5">1.5</option>
            <option value="2">2</option>
            <option value="2.5">2.5</option>
            <option value="3">3</option>
            <option value="15">15</option>
        </select>
    </p>
    <p><button id="btnPlay">视频播放</button></p>

</div>

js代码

var eleSelect = document.getElementById("double");
var eleButton = document.getElementById("btnPlay");
//视频元素
var video = document.getElementById("video1");
//改变播放速率
eleSelect.addEventListener('change',function () {
    video.playbackRate = this.value;
});
//点击播放
eleButton.addEventListener('click',function () {
    video.play();
});

倍速播放上限16倍