atrac1: use correct context for av_log()

libavcodec/atrac1.c

@@ -284,7 +284,7 @@ static int atrac1_decode_frame(AVCodecContext *avctx, void *data,
 
 
     if (buf_size < 212 * q->channels) {
-        av_log(q,AV_LOG_ERROR,"Not enough data to decode!\n");
+        av_log(avctx, AV_LOG_ERROR, "Not enough data to decode!\n");
         return AVERROR_INVALIDDATA;
     }