如何在 Flex Builder 3 中捕获流视频显示并将其保存到磁盘？

发布于 2024-11-07 16:02:07 字数 810 浏览 7 评论 0原文

我一段时间以来一直在寻找问题的解决方案，但没有得到答案。我有一个带有 VideoDisplay 对象和“截取屏幕截图”按钮的页面。我想从流视频中获取屏幕截图并保存它，但出现错误：

安全沙箱违规：BitmapData.draw：http://xxx/xxx.swf 无法访问 rtmp:/ /xxx/xx/xx/.没有授予访问权限的策略文件。

我从中捕获图像的网站的域和 rtmp 是相同的。

我正在使用 ImageSnapshot 类来捕获屏幕截图。这是负责截取屏幕截图的函数：

function takeSnapshot()
    {
        var imageSnap:ImageSnapshot=ImageSnapshot.captureImage(mainPlayer);
        var imageByteArray:ByteArray=imageSnap.data as ByteArray;
        var fileRef:FileReference=new FileReference();
        fileRef.save(imageByteArray, "screenshot.png");
    }

我还有一个带有 lin: 的跨域策略文件：

<allow-access-from domain="*" />

我将感谢您的帮助。

原文

I've been looking for a solution to my problem for a while and didn't get the answer.
I have a page with a VideoDisplay object and a "Take screenshot" button. I would like to get the screenshot from the streaming video and save it but I'm getting an error:

Security sandbox violation: BitmapData.draw: http://xxx/xxx.swf cannot access rtmp://xxx/xx/xx/. No policy files granted access.

The domain of the website from which I'm capturing the image and the rtmp is the same.

I'm using ImageSnapshot class to capture the screenshot. This is the function responsible for taking the screenshot:

function takeSnapshot()
    {
        var imageSnap:ImageSnapshot=ImageSnapshot.captureImage(mainPlayer);
        var imageByteArray:ByteArray=imageSnap.data as ByteArray;
        var fileRef:FileReference=new FileReference();
        fileRef.save(imageByteArray, "screenshot.png");
    }

I've got also a cross-domain policy file with a lin: