libavformat/rmdec.c:626: error: Uninitialized Value
  The value read from pic_num was never initialized.

libavformat/rmdec.c:626:9: 
624.         vst->videobufpos = 8*vst->slices + 1;
625.         vst->cur_slice = 0;
626.         vst->curpic_num = pic_num;
             ^
627.         vst->pktpos = avio_tell(pb);
628.     }
