diff options
| author | Mans Rullgard <mans@mansr.com> | 2011-03-31 04:28:08 +0400 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-03-31 15:01:27 +0400 |
| commit | 7f6e05cdfd1242a6774e89283b6e2cefde191590 (patch) | |
| tree | ee3edfc058e31b191186c22f786155b01aa17519 | |
| parent | cb7e2c1ca864a2ff44c851689ba8a2d4a81dfd27 (diff) | |
ac3enc: simplify sym_quant()
These expressions are equivalent since levels is always odd, and
overflow is impossible due to the constraints set by the assert().
Signed-off-by: Mans Rullgard <mans@mansr.com>
| -rw-r--r-- | libavcodec/ac3enc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c index 18e4dae26a..a869d7de9d 100644 --- a/libavcodec/ac3enc.c +++ b/libavcodec/ac3enc.c @@ -1192,7 +1192,7 @@ static int compute_bit_allocation(AC3EncodeContext *s) */ static inline int sym_quant(int c, int e, int levels) { - int v = ((((levels * c) >> (24 - e)) + 1) >> 1) + (levels >> 1); + int v = (((levels * c) >> (24 - e)) + levels) >> 1; av_assert2(v >= 0 && v < levels); return v; } |