X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fg723_1dec.c;h=f601d31d0027df88948dc6feae55b98ffd03fece;hb=6268034b5d03580f86e9ff5a1879ebd56f35db40;hp=d8bc3f97acfddcda0fdc06bae0969d29572ffc23;hpb=e427ba5c68a522b26a45bf7c61016d9349fab43d;p=ffmpeg

diff --git a/libavcodec/g723_1dec.c b/libavcodec/g723_1dec.c
index d8bc3f97acf..f601d31d002 100644
--- a/libavcodec/g723_1dec.c
+++ b/libavcodec/g723_1dec.c
@@ -677,7 +677,9 @@ static int estimate_sid_gain(G723_1_ChannelContext *p)
             if (p->sid_gain < 0) t = INT32_MIN;
             else                 t = INT32_MAX;
         } else
-            t = p->sid_gain << shift;
+            t = p->sid_gain * (1 << shift);
+    } else if(shift < -31) {
+        t = (p->sid_gain < 0) ? -1 : 0;
     }else
         t = p->sid_gain >> -shift;
     x = av_clipl_int32(t * (int64_t)cng_filt[0] >> 16);
@@ -1010,7 +1012,7 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
             formant_postfilter(p, lpc, p->audio, out);
         } else { // if output is not postfiltered it should be scaled by 2
             for (i = 0; i < FRAME_LEN; i++)
-                out[i] = av_clip_int16(p->audio[LPC_ORDER + i] << 1);
+                out[i] = av_clip_int16(2 * p->audio[LPC_ORDER + i]);
         }
     }