diff options
| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2019-09-28 04:26:10 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-28 17:24:32 +0200 |
| commit | 5cf593adcd79a7c9502dc2725e1f0681ada36aef (patch) | |
| tree | 9999a6288e641476b398a65ac30f4fcc91203ddd /libavcodec/jpeg2000dwt.c | |
| parent | 324487b596fbcda0a5753c7bb7b2e96e9d512479 (diff) | |
| download | ffmpeg-5cf593adcd79a7c9502dc2725e1f0681ada36aef.tar.gz | |
avcodec/jpeg2000dwt: Fix undefined shifts of negative numbers
Affected the vsynth*-jpeg2000 and the vsynth*-jpeg2000-97 FATE tests
(where * ranges over { 1, 2, 3, _lena }) as well as ticket #7983.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/jpeg2000dwt.c')
| -rw-r--r-- | libavcodec/jpeg2000dwt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/jpeg2000dwt.c b/libavcodec/jpeg2000dwt.c index badf0f8cd0..f418454ee9 100644 --- a/libavcodec/jpeg2000dwt.c +++ b/libavcodec/jpeg2000dwt.c @@ -255,7 +255,7 @@ static void dwt_encode97_int(DWTContext *s, int *t) line += 5; for (i = 0; i < w * h; i++) - t[i] <<= I_PRESHIFT; + t[i] *= 1 << I_PRESHIFT; for (lev = s->ndeclevels-1; lev >= 0; lev--){ int lh = s->linelen[lev][0], |