防止前置摄像头翻转 [英] Prevent flipping of the front facing camera

问题描述

我试图访问Android的前置摄像头的原始feed。默认情况下，前置摄像头的预览被水平翻转，所以用户可以看到自己，就像看着一面镜子 - 这是伟大的，但不是我需要的。什么是最好的方式来获得原料？有没有方法禁用自动翻转，或者我应该尝试在代码自己翻转它？

I'm attempting to access the raw feed of android's front facing camera. By default, the front facing camera's preview is flipped horizontally so users can see themselves as if looking into a mirror - that's great, but not what I need. What's the best way to get the raw feed? Is there some way to disable the automatic flipping, or should I attempt to flip it in code myself? My application needs to display a real-time feed of the front facing camera without it being flipped like a mirror.

推荐答案

如果你的电脑没有镜像，我的应用程序需要显示前置摄像头的实时馈送。要使用前置摄像头进行条码扫描，您可以使用TextureView并对其应用变换矩阵。当纹理更新时，您可以读取图像数据并使用。

If you want to use a front-facing camera for barcode scanning you can use TextureView and apply a transformation matrix to it. When the texture is updated you can read the image data and use that.

请参阅 https://github.com/hadders/camera-reverse

特别来自MainActivity.java

Specifically from MainActivity.java

mCamera.setDisplayOrientation(90);
Matrix matrix = new Matrix();
matrix.setScale(-1, 1);
matrix.postTranslate(width, 0);
mTextureView.setTransform(matrix);

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