ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Nov 8 13:25:54 2015 +0100| [0269fb11e3de17375f86d9120599af8c87cdfa0a] | committer: Michael Niedermayer
avutil/softfloat: Check for MIN_EXP in av_sqrt_sf() Otherwise the exponent could eventually underflow Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0269fb11e3de17375f86d9120599af8c87cdfa0a --- libavutil/softfloat.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavutil/softfloat.h b/libavutil/softfloat.h index 5335669..023ccd0 100644 --- a/libavutil/softfloat.h +++ b/libavutil/softfloat.h @@ -181,6 +181,10 @@ static av_always_inline SoftFloat av_sqrt_sf(SoftFloat val) val.mant >>= 1; val.exp = (val.exp >> 1) + 1; + if (val.exp < MIN_EXP) { + val.exp = MIN_EXP; + val.mant= 0; + } } return val; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
