Everybody is good, I want to be in the video broadcast images cover an opaque layer and a square hole in this layer, let users through the hole to see the back of the screen, or allows the user to move the hole at the back of the video screen, make the user feel he can control the picture, such a scheme on a mobile phone can realize? I am currently doing a video aspects of the project, thank you, QQ36086804, mobile phone 13661712218

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