isFloat          1893 libswscale/swscale_unscaled.c             } else if (isFloat(c->srcFormat) && isFloat(c->dstFormat) &&
isFloat          2159 libswscale/swscale_unscaled.c         (isFloat(srcFormat) == isFloat(dstFormat)) && ((isPlanarYUV(srcFormat) && isPlanarGray(dstFormat)) ||
isFloat          1827 libswscale/utils.c          isFloat(srcFormat) || isFloat(dstFormat))){