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| author | Luca Barbato <lu_zero@gentoo.org> | 2016-04-12 22:14:26 +0200 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2016-04-19 20:22:31 +0200 |
| commit | f3fdef108eb06b1e71b29152bf6822519e787efe (patch) | |
| tree | bba92723c87fdb0323c6bf525689513b57b2b6d9 /libavcodec/apedec.c | |
| parent | 6b2ad3ca48a6638cb0226ed5aab41d435d8c83a5 (diff) | |
| download | ffmpeg-f3fdef108eb06b1e71b29152bf6822519e787efe.tar.gz | |
ape: Avoid undefined behaviour
Avoid the clang warning
"warning: shifting a negative signed value is undefined"
Diffstat (limited to 'libavcodec/apedec.c')
| -rw-r--r-- | libavcodec/apedec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index d33139be7d..85d26aef27 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -1305,7 +1305,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f, /* Update the adaption coefficients */ absres = FFABS(res); if (absres) - *f->adaptcoeffs = ((res & (-1<<31)) ^ (-1<<30)) >> + *f->adaptcoeffs = ((res & ((~0UL) << 31)) ^ ((~0UL) << 30)) >> (25 + (absres <= f->avg*3) + (absres <= f->avg*4/3)); else *f->adaptcoeffs = 0; |