More robust detection of whether OpenEXR is tiled. (#1441)
More robust detection of whether OpenEXR is tiled. (#1441)

Would you believe that there are some files whose headers contain the
TileDescription but aren't really tiled? Oy.

Thanks to Michel Lerenard for tracking this down.
YangYangTL/oiio,micler/oiio,YangYangTL/oiio,micler/oiio,bdeluca/oiio,YangYangTL/oiio,bdeluca/oiio,YangYangTL/oiio,lgritz/oiio,bdeluca/oiio,OpenImageIO/oiio,micler/oiio,micler/oiio,lgritz/oiio,bdeluca/oiio,OpenImageIO/oiio,lgritz/oiio,lgritz/oiio,OpenImageIO/oiio,OpenImageIO/oiio