JPEG2000_T1_SGN_E  150 libavcodec/jpeg2000.c     hcontrib = contribtab[flag & JPEG2000_T1_SIG_E ? flag & JPEG2000_T1_SGN_E ? 1 : 2 : 0]
JPEG2000_T1_SGN_E  179 libavcodec/jpeg2000.c         t1->flags[(y) * t1->stride + x - 1] |= JPEG2000_T1_SIG_E | JPEG2000_T1_SGN_E;