pcmdec: do not needlessly set *data_size to 0

diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c
index 66edfba..4b11583 100644 (file)
--- a/libavcodec/pcm.c
+++ b/libavcodec/pcm.c
@@ -302,7 +302,6 @@ static int pcm_decode_frame(AVCodecContext *avctx,
     }
 
     buf_size= FFMIN(buf_size, *data_size/2);
-    *data_size=0;
 
     n = buf_size/sample_size;