YUV to RGB conversion by fragment shader

Question

I\'ve a problem with convertion of camera preview in Android from YUV format to RGB. The purpose of conversion is to apply some effects. I try to convert by fragment shader

Answer 1

Not sure if you have already fixed this problem.My answer

1. By default Camera output is NV12, but in fragment shader YUV to RGB you are using YV12 -> RGB. You will have to do setPreviewFormat(ImageFormat.YV12);, or may be use some other shader

2. There are 3 textures , make sure you do

   GLES20.glActiveTexture(GLES20.GL_TEXTURE2); GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, muTextureName)

   before call to any glTexImage2D. and glTexSubImage2D

3. You can also use glTexSubImage2D with every frame and glTexImage2D once.

4. size of U and V is same , atleast for YV12,

   System.arraycopy(data, U_INDEX, uData, 0, LENGTH_4 * 2);

   should be System.arraycopy(data, U_INDEX, uData, 0, LENGTH_4); change the size accordingly in the code.