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-rw-r--r--libavcodec/ac3enc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c
index 0754c86570..d44347396b 100644
--- a/libavcodec/ac3enc.c
+++ b/libavcodec/ac3enc.c
@@ -842,10 +842,12 @@ static inline int sym_quant(int c, int e, int levels)
int v;
if (c >= 0) {
- v = (levels * (c << e)) >> 25;
+ v = (levels * (c << e)) >> 24;
+ v = (v + 1) >> 1;
v = (levels >> 1) + v;
} else {
- v = (levels * ((-c) << e)) >> 25;
+ v = (levels * ((-c) << e)) >> 24;
+ v = (v + 1) >> 1;
v = (levels >> 1) - v;
}
assert (v >= 0 && v < levels);