png_oFFs          230 contrib/libtests/pngunknown.c    { "oFFs", PNG_INFO_oFFs, png_oFFs,
png_oFFs          803 contrib/tools/pngfix.c       case png_iTXt: case png_oFFs: case png_pCAL: case png_pHYs: case png_sCAL:
png_oFFs          377 pngpread.c        else if (chunk_name == png_oFFs)
png_oFFs          186 pngread.c            else if (chunk_name == png_oFFs)
png_oFFs          843 pngread.c            else if (chunk_name == png_oFFs)
png_oFFs         1792 pngwutil.c        png_write_complete_chunk(png_ptr, png_oFFs, buf, (png_size_t)9);