ref: 0f218050d34326a38a89f07e772a7c4fc350fb10 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);