TIFFSetWriteOffset  200 3rdparty/libtiff/tif_dirwrite.c     (void) TIFFSetWriteOffset(tif, TIFFSeekFile(tif, 0, SEEK_END));
TIFFSetWriteOffset  468 3rdparty/libtiff/tiffio.h extern void TIFFSetWriteOffset(TIFF* tif, toff_t off);