diff options
Diffstat (limited to 'src/lib/openjp2/t1.c')
| -rw-r--r-- | src/lib/openjp2/t1.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/lib/openjp2/t1.c b/src/lib/openjp2/t1.c index 0787dce8..937f420a 100644 --- a/src/lib/openjp2/t1.c +++ b/src/lib/openjp2/t1.c @@ -1426,7 +1426,11 @@ static OPJ_FLOAT64 opj_t1_getwmsedec( if (qmfbid == 1) { w2 = opj_dwt_getnorm(level, orient); } else { /* if (qmfbid == 0) */ + const OPJ_INT32 log2_gain = (orient == 0) ? 0 : + (orient == 3) ? 2 : 1; w2 = opj_dwt_getnorm_real(level, orient); + /* Not sure this is right. But preserves past behaviour */ + stepsize /= (1 << log2_gain); } wmsedec = w1 * w2 * stepsize * (1 << bpno); |