avcodec/mpegaudioenc_template: fix invalid shift of sample

Fixes: Ticket8010 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-01-23 12:41:41 +01:00 · 2020-01-23 12:41:41 +01:00 · a2c97a8342
parent e13eee37ee
commit a2c97a8342
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/mpegaudioenc_template.c
+++ b/libavcodec/mpegaudioenc_template.c
@ -701,7 +701,7 @@ static void encode_frame(MpegAudioContext *s,

                                /* normalize to P bits */
                                if (shift < 0)
-                                    q1 = sample << (-shift);
+                                    q1 = sample * (1 << -shift);
                                else
                                    q1 = sample >> shift;
                                q1 = (q1 * mult) >> P;