iPhone:在 UIView 上显示半透明视频? [英] iPhone: Display a semi-transparent video on top of a UIView?

问题描述

是否可以在 UIView 上播放半透明视频(使用蓝屏创建)?我想知道如果 MPMoviePlayerViewController 无法做到这一点，它可能是通过使用 OpenGL ES 和视频纹理?

is it possible to have semi-transparent video (created with blue-screen) playing on top of a UIView ? I was wondering that in case that's not doable with the MPMoviePlayerViewController it might be by using OpenGL ES and a video texture ?

提前谢谢你，

F.

推荐答案

可以使用ffmpeg库.这是链接，您可以在其中下载一个非常好的示例链接

It is possible using the ffmpeg library. Here is the link, where you can download a very good example link

然后你只需要将 alpha 属性设置为 UIImageView.但我不确定性能，试试:)

Then you just have to set the alpha property to the UIImageView. But i'm not sure about performance, try :)

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