libavcodec/h264_refs.c:571: error: Uninitialized Value
  The value read from j was never initialized.

libavcodec/h264_refs.c:571:5: 
569. int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count)
570. {
571.     int i, av_uninit(j);
         ^
572.     int current_ref_assigned = 0, err = 0;
573.     H264Picture *av_uninit(pic);
