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-rw-r--r--libavcodec/ffwavesynth.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ffwavesynth.c b/libavcodec/ffwavesynth.c
index a66113972b..cf8c780f3e 100644
--- a/libavcodec/ffwavesynth.c
+++ b/libavcodec/ffwavesynth.c
@@ -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) {