cvtRGBtoYUV420p  8516 modules/imgproc/src/color.cpp                     case 10: cvtRGBtoYUV420p<0, 1>(src, dst); break;
cvtRGBtoYUV420p  8517 modules/imgproc/src/color.cpp                     case 12: cvtRGBtoYUV420p<2, 1>(src, dst); break;
cvtRGBtoYUV420p  8518 modules/imgproc/src/color.cpp                     case 20: cvtRGBtoYUV420p<0, 2>(src, dst); break;
cvtRGBtoYUV420p  8519 modules/imgproc/src/color.cpp                     case 22: cvtRGBtoYUV420p<2, 2>(src, dst); break;