I have a closed source library for AR, and i must call method from this library with width, height and byte[] parameters(in onPreviewFrame callback). I render preview with opengles 2.0 and SurfaceTexture. I wish to render in higher resolution and transmit data to library in lower resolution. Is it possible?
我有一个用于AR的封闭源库，我必须使用width，height和byte []参数调用此库中的方法（在onPreviewFrame回调中）。我用opengles 2.0和SurfaceTexture渲染预览。我希望以更高的分辨率渲染并以较低的分辨率将数据传输到库。可能吗？
1 个解决方案
#1
1
No it isn't. Most image processing libraries know how to downscale their input. If yours is not the case, you should resample the byte[] in your onPreviewFrame() callback for it. Note that often AR processes only need grayscale, and thus you can save 33% of CPU cycles of downscaling.
不，不是。大多数图像处理库都知道如何缩小其输入。如果不是这种情况，则应重新对onPreviewFrame（）回调中的byte []进行重新采样。请注意，AR流程通常只需要灰度，因此可以节省33％的缩减CPU周期。
#1
1
No it isn't. Most image processing libraries know how to downscale their input. If yours is not the case, you should resample the byte[] in your onPreviewFrame() callback for it. Note that often AR processes only need grayscale, and thus you can save 33% of CPU cycles of downscaling.
不，不是。大多数图像处理库都知道如何缩小其输入。如果不是这种情况，则应重新对onPreviewFrame（）回调中的byte []进行重新采样。请注意，AR流程通常只需要灰度，因此可以节省33％的缩减CPU周期。