Merge commit '3a177a9cca924e097265b32f9282814f6b653e08'

[ffmpeg] / libavcodec / g729postfilter.c

diff --git a/libavcodec/g729postfilter.c b/libavcodec/g729postfilter.c
index fc903740eddfc88dd0016efa68def03dffeaf0d0..bcf509cfcc6d7610fa3f3a292619f03d9f898521 100644 (file)
--- a/libavcodec/g729postfilter.c
+++ b/libavcodec/g729postfilter.c
@@ -389,7 +389,7 @@ static int16_t long_term_filter(DSPContext *dsp, int pitch_delay_int,
         lt_filt_factor_a = (gain_den << 15) / (gain_den + gain_num);
     }
 #else
-    L64_temp0 = ((int64_t)gain_num) << (sh_gain_num - 1);
+    L64_temp0 = (((int64_t)gain_num) << sh_gain_num) >> 1;
     L64_temp1 = ((int64_t)gain_den) << sh_gain_den;
     lt_filt_factor_a = FFMAX((L64_temp1 << 15) / (L64_temp1 + L64_temp0), MIN_LT_FILT_FACTOR_A);
 #endif