libavcodec/h264_loopfilter.c:584: error: Uninitialized Value
  The value read from bS[_] was never initialized.

libavcodec/h264_loopfilter.c:584:16: 
582.             // Do not use s->qscale as luma quantizer because it has not the same
583.             // value in IPCM macroblocks.
584.             if(bS[0]+bS[1]+bS[2]+bS[3]){
                    ^
585.                 qp = (s->current_picture.f.qscale_table[mb_xy] + s->current_picture.f.qscale_table[mbm_xy] + 1) >> 1;
586.                 tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d ls:%d uvls:%d", mb_x, mb_y, dir, edge, qp, linesize, uvlinesize);
