diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/jpeg2000dwt.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libavcodec/jpeg2000dwt.c b/libavcodec/jpeg2000dwt.c index a5eb0b7..dba8393 100644 --- a/libavcodec/jpeg2000dwt.c +++ b/libavcodec/jpeg2000dwt.c @@ -357,8 +357,11 @@ static void sr_1d97_float(float *p, int i0, int i1) { int i; - if (i1 == i0 + 1) + if (i1 <= i0 + 1) { + if (i0 == 1) + p[1] *= F_LFTG_K/2; return; + } extend97_float(p, i0, i1); @@ -429,8 +432,11 @@ static void sr_1d97_int(int32_t *p, int i0, int i1) { int i; - if (i1 == i0 + 1) + if (i1 <= i0 + 1) { + if (i0 == 1) + p[1] = (p[1] * I_LFTG_K + (1<<16)) >> 17; return; + } extend97_int(p, i0, i1); |
