createObjectURL 在 Chrome 中返回未定义

发布于 2024-11-25 10:00:50 字数 933 浏览 1 评论 0原文

尝试使用 createObjectDataURL 更改视频源文件。它在 Firefox 中工作正常，但在 Chrome（版本 12.0.742.122 m）中无法工作。代码不会引发任何错误，但会为 createObjectDataURL 返回 undefined。我尝试了所有的可能性，但它总是返回未定义。

<!DOCTYPE html>
<html>
<head>
<title>Check CreateObjectURL</title>
</head>
<script type="text/javascript" language="javascript">

window.URL = window.URL || window.webkitURL;

function ChangeProperty()
{
        var v = document.getElementById("myvideo");
        var file = document.getElementById("fileControl").files[0];
        v.setAttribute("src",window.URL.createObjectURL(file));
}
</script>
<body>
<div >
    <video id="myvideo" src="movie.ogg" controls ></video>
    <input type="file" id="fileControl" /> 
    <button id="btnprops" onClick="ChangeProperty()" >update</button>
</div>
</body>
</html>

请帮我。已经花了很多时间了。提前致谢。

原文

Trying to change video source file using createObjectDataURL. It is working fine with Firefox but not working in Chrome (version 12.0.742.122 m). code is not throwing any error but returns undefined for createObjectDataURL. I tried all the possibilities but it always returns undefined.

<!DOCTYPE html>
<html>
<head>
<title>Check CreateObjectURL</title>
</head>
<script type="text/javascript" language="javascript">

window.URL = window.URL || window.webkitURL;

function ChangeProperty()
{
        var v = document.getElementById("myvideo");
        var file = document.getElementById("fileControl").files[0];
        v.setAttribute("src",window.URL.createObjectURL(file));
}
</script>
<body>
<div >
    <video id="myvideo" src="movie.ogg" controls ></video>
    <input type="file" id="fileControl" /> 
    <button id="btnprops" onClick="ChangeProperty()" >update</button>
</div>
</body>
</html>

Please help me. It has already taken lot of time.
Thanks in Advance.

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