dont forget table_size in the decode_frame return value

Originally committed as revision 5246 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/huffyuv.c

@@ -1015,7 +1015,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8
     *picture= *p;
     *data_size = sizeof(AVFrame);
 
-    return (get_bits_count(&s->gb)+31)/32*4;
+    return (get_bits_count(&s->gb)+31)/32*4 + table_size;
 }
 
 static int common_end(HYuvContext *s){