libavcodec/h264_loopfilter.c:547: error: Uninitialized Value
  The value read from bS[_] was never initialized.

libavcodec/h264_loopfilter.c:547:16: 
545.             // Do not use s->qscale as luma quantizer because it has not the same
546.             // value in IPCM macroblocks.
547.             if(bS[0]+bS[1]+bS[2]+bS[3]){
                    ^
548.                 qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbm_xy] + 1 ) >> 1;
549.                 //tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d, QPc:%d, QPcn:%d\n", mb_x, mb_y, dir, edge, qp, h->chroma_qp[0], s->current_picture.qscale_table[mbn_xy]);
