Conditional statements for NV21 and NV12

[kzkysdjpn]

Thank you for publishing the source code.
I am using it as a reference when coding.
I have a question about the conversion source code of YUV images.

https://github.com/ohwada/Android_Samples/tree/master/ImageFormatConverter/library/src/main/cpp/native-yuv-to-buffer-lib.cpp
L101-102
if (uPixelStride == 2 && vPixelStride == 2 &&
uRowStride == vRowStride && bbuf_vIn == bbuf_uIn + 1) {
isNV21=true;

L109-110
} else if (vPixelStride == 2 && uPixelStride == 2 &&
uRowStride == vRowStride && bbuf_vIn == bbuf_uIn + 1) {
isNV21=false;

It looks like the same judgment conditions.