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avcodec/ffwavesynth: Fix backward lcg_seek()

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit cf2bd3ce79b12256d7d129b2ada5ee649b9a27eb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-06-21 22:08:27 +02:00
parent eb7a4a27c4
commit 98e712bd1c

View File

@ -122,7 +122,7 @@ static void lcg_seek(uint32_t *s, int64_t dt)
c = LCG_C;
} else { /* coefficients for a step backward */
a = LCG_AI;
c = (uint32_t)(LCG_AI * LCG_C);
c = (uint32_t)(-LCG_AI * LCG_C);
dt = -dt;
}
while (dt) {