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| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2019-09-28 04:25:57 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-07-03 16:17:40 +0200 |
| commit | 4ee6a9b1bbdf89486729193fd2822c511c531121 (patch) | |
| tree | cadea5269b3c4cc19bb6296734b13d85856f4600 /libavfilter | |
| parent | 37d8033fd064f417aa03313fbf12af70cb30856e (diff) | |
| download | ffmpeg-4ee6a9b1bbdf89486729193fd2822c511c531121.tar.gz | |
avfilter/vf_hqx: Fix undefined left shifts of negative numbers
Affected every usage of this filter; in particular, it affected the
FATE-tests filter-2xbr, filter-3xbr and filter-4xbr.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fa211943265ca991548a4cc2f85a6df9cedcd092)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Diffstat (limited to 'libavfilter')
| -rw-r--r-- | libavfilter/vf_hqx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavfilter/vf_hqx.c b/libavfilter/vf_hqx.c index 5f63b2a3f9..8899d7a70f 100644 --- a/libavfilter/vf_hqx.c +++ b/libavfilter/vf_hqx.c @@ -523,7 +523,7 @@ static av_cold int init(AVFilterContext *ctx) int startg = FFMAX3(-bg, -rg, 0); int endg = FFMIN3(255-bg, 255-rg, 255); uint32_t y = (uint32_t)(( 299*rg + 1000*startg + 114*bg)/1000); - c = bg + (rg<<16) + 0x010101 * startg; + c = bg + rg * (1 << 16) + 0x010101 * startg; for (g = startg; g <= endg; g++) { hqx->rgbtoyuv[c] = ((y++) << 16) + (u << 8) + v; c+= 0x010101; |