Andreas Rheinhardt 59a9d65e0d avcodec/adxenc: Avoid undefined left shift of negative numbers ...

Replace "((a << shift) + b) >> shift" by "a + (b >> shift)". This avoids
a left shift which also happens to trigger undefined behaviour in case "a"
is negative. This affected the FATE-tests acodec-adpcm-adx and
acodec-adpcm-adx-trellis; it also fixes ticket #8008.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

2020-01-21 10:01:46 +01:00

6.1 KiB

Raw Blame History

View Raw