Get U/V planes instead of V/U, and encode RGBA instead of BGRA.

[mansourmoufid]

The U and V planes are swapped here:

  AImage_getPlaneData(image, 0, &yPixel, &yLen);
  AImage_getPlaneData(image, 1, &vPixel, &vLen);
  AImage_getPlaneData(image, 2, &uPixel, &uLen);

According to the docs:

The order of planes is guaranteed such that plane #0 is always Y, plane #1 is always U (Cb), and plane #2 is always V (Cr).

This works out because the function YUV2RGB actually encodes BGRA, not RGBA:

  return 0xff000000 | (nR << 16) | (nG << 8) | nB;

(Swapping U and V is equivalent to swapping R and B.)

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.