$TESTDATADIR/$TEST/input/testcase1_ocv.png
$TESTDATADIR/$TEST/output/testcase1_RGBA2IYUV_Y.png
$TESTDATADIR/$TEST/output/testcase1_RGBA2IYUV_U.png
$TESTDATADIR/$TEST/output/testcase1_RGBA2IYUV_V.png
