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在HTML5中的音频和视频标签之间切换

[英]Switch between audio and video tags in HTML5

有没有一种方法可以在HTML5中即时切换音频和视频标签? 这意味着如果同一源以视频开头并选择“视频关闭”,则该源将被复制到音频标签并继续播放。 反之亦然。

当然-只需暂停所有正在播放的内容,在要开始的元素上设置<source> ,然后将新播放器设置为从另一个停止播放的位置开始:

 var playing = "video"; var audio = document.getElementById("audio"); var video = document.getElementById("video"); var source = document.createElement("source"); source.setAttribute("src", "http://vjs.zencdn.net/v/oceans.mp4"); source.setAttribute("id", "sourceElement"); video.appendChild(source); video.play(); document.getElementById("toggleAV").onclick = function(e) { switch (playing) { case "video": video.pause(); video.setAttribute("class", "hidden"); video.removeChild(source); audio.appendChild(source); audio.currentTime = video.currentTime; audio.setAttribute("class", ""); audio.play(); playing = "audio"; break; case "audio": audio.pause(); audio.setAttribute("class", "hidden"); audio.removeChild(source); video.appendChild(source); video.currentTime = audio.currentTime; video.setAttribute("class", ""); video.play(); playing = "video"; break; } }; 
 html, body { height: 100%; width: 100%; } .hidden { display: none; } 
 <!DOCTYPE html> <html> <head> <meta charset=utf-8 /> <title>so</title> <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' /> </head> <body> <video id="video" width="320" height="240" controls></video> <audio id="audio" controls class="hidden"></audio> <button id="toggleAV">Toggle AV</button> </body> </html> 

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