ref: 0459e440350325b04aaa0bd1f70120ce1066716b dir: /jbig2_mmr.h/
int jbig2_decode_generic_mmr(Jbig2Ctx *ctx, int32_t seg_number, const Jbig2GenericRegionParams *params, const byte *data, size_t size, byte *gbreg);