是否可以检测动画gif图像客户端？ [英] Is it possible to detect animated gif images client side?

问题描述

是否可以检测动画gif图像客户端？

Is it possible to detect animated gif images client side?

在Internet Explorer中，您可以使用 onload 事件，因为它将被触发每帧加载（IE8中的行为已更改） 。

In Internet Explorer you can use the onload event for this, since it willl be fired for every frame loaded (behaviour changed in IE8).

但是其他浏览器也有办法吗？

But is there a way for other browsers too?

推荐答案

我不知道在客户端有什么办法，但我不确定。您可以做的是解析服务器端的HTML代码和任何引用的gif，并为这些图像添加一个类。但这并不是真的值得推荐，因为它至少需要对每个gif进行HTML +解析。正如您可以从这个PHP示例中看到的那样，检查就CPU负载而言，GIF也不是一件容易的事。

I don't know of any way to do it on the client side, but I am not sure about that. What you could do, is parsing the HTML code and any referenced gif on the server side and add a class to these images. But that is not really recommended because it involves at least one additional parsing of HTML + parsing of every gif. As you can see from this example in PHP, checking the gifs is also not trivial in terms of CPU load.

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