TIFF_RATIONAL     402 libavcodec/tiffenc.c     add_entry(s, TIFF_XRES,              TIFF_RATIONAL, 1,      res);
TIFF_RATIONAL     403 libavcodec/tiffenc.c     add_entry(s, TIFF_YRES,              TIFF_RATIONAL, 1,      res);
TIFF_RATIONAL     424 libavcodec/tiffenc.c         add_entry(s, TIFF_REFERENCE_BW,      TIFF_RATIONAL, 6, refbw);