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| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2019-09-28 04:26:02 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-07-02 10:43:52 +0200 |
| commit | 6bae72ff8509fade57aec03b7ea43f3d8bbbac32 (patch) | |
| tree | 99e6c68d5cff437809195078d9567456e5a542c7 | |
| parent | e0d50eb076a91924b51ff6f700501f676ae2b7b5 (diff) | |
| download | ffmpeg-6bae72ff8509fade57aec03b7ea43f3d8bbbac32.tar.gz | |
swscale/utils: Fix invalid left shifts of negative numbers
Affected the FATE-tests vsynth_lena-dv-411, vsynth1-dv-411,
vsynth2-dv-411 and hevc-paramchange-yuv420p.yuv420p10.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e2646e23be69bdef1e41d4decee1a4298701b8d1)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
| -rw-r--r-- | libswscale/utils.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c index 98a6b99476..5e024aca35 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -380,7 +380,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos, (*filterPos)[i] = xx; // bilinear upscale / linear interpolate / area averaging for (j = 0; j < filterSize; j++) { - int64_t coeff= fone - FFABS(((int64_t)xx<<16) - xDstInSrc)*(fone>>16); + int64_t coeff = fone - FFABS((int64_t)xx * (1 << 16) - xDstInSrc) * (fone >> 16); if (coeff < 0) coeff = 0; filter[i * filterSize + j] = coeff; |