alacenc : perform decorrelation only for stereo samples

Originally committed as revision 14904 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago · ec6cda8c6e
parent 9b9466b0cd
commit ec6cda8c6e
1 changed files with 2 additions and 1 deletions
--- a/libavcodec/alacenc.c
+++ b/libavcodec/alacenc.c
@ -330,7 +330,8 @@ static void write_compressed_frame(AlacEncodeContext *s)
    int i, j;

    /* only simple mid/side decorrelation supported as of now */
-    alac_stereo_decorrelation(s);
+    if(s->avctx->channels == 2)
+        alac_stereo_decorrelation(s);
    put_bits(&s->pbctx, 8, s->interlacing_shift);
    put_bits(&s->pbctx, 8, s->interlacing_leftweight);