    DecoderFct TiffMapping::findDecoder(const std::string& make,
                                              uint32_t     extendedTag,
                                              IfdId        group)
    {
        DecoderFct decoderFct = &TiffDecoder::decodeStdTiffEntry;
        const TiffMappingInfo* td = find(tiffMappingInfo_,
                                         TiffMappingInfo::Key(make, extendedTag, group));
        if (td) {
            // This may set decoderFct to 0, meaning that the tag should not be decoded
            decoderFct = td->decoderFct_;
        }
        return decoderFct;
    }
Unknown