JPEG2000_T1_SGN_S  150 libavcodec/jpeg2000.c     vcontrib = contribtab[flag & JPEG2000_T1_SIG_S ? flag & JPEG2000_T1_SGN_S ? 1 : 2 : 0]
JPEG2000_T1_SGN_S  179 libavcodec/jpeg2000.c         t1->flags[y - 1][x] |= JPEG2000_T1_SIG_S | JPEG2000_T1_SGN_S;