png_handle_oFFs   380 pngpread.c           png_handle_oFFs(png_ptr, info_ptr, png_ptr->push_length);
png_handle_oFFs  1316 pngpriv.h      PNG_INTERNAL_FUNCTION(void,png_handle_oFFs,(png_structrp png_ptr,
png_handle_oFFs   187 pngread.c               png_handle_oFFs(png_ptr, info_ptr, length);
png_handle_oFFs   844 pngread.c               png_handle_oFFs(png_ptr, info_ptr, length);