+ // move GT to the first FORMAT field
+ int bcf_fix_gt(bcf1_t *b);
+ // update PL generated by old samtools
+ int bcf_fix_pl(bcf1_t *b);
+ // convert PL to GLF-like 10-likelihood GL
+ int bcf_gl10(const bcf1_t *b, uint8_t *gl);
+ // convert up to 4 INDEL alleles to GLF-like 10-likelihood GL
+ int bcf_gl10_indel(const bcf1_t *b, uint8_t *gl);