libavcodec/h264_refs.c:485: error: Uninitialized Value
  The value read from j was never initialized.

libavcodec/h264_refs.c:485:5: 
483. int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
484.     MpegEncContext * const s = &h->s;
485.     int i, av_uninit(j);
         ^
486.     int current_ref_assigned=0;
487.     Picture *av_uninit(pic);
