Tvheadend

I've been debugging a missing teletext stream and I think I've now found the problem. pvr.tvh uses "normts" for PTS/DTS normalisation and the backend implementation creates a problem if the teletext stream uses a different time base (which apparently is not uncommon). The code below, from normalize_ts() in tsfix.c, is what's been dropping my teletext packets.

  if(tfs->tfs_last_dts_norm == PTS_UNSET) {
    if(dts < 0) {
      /* Early packet with negative time stamp, drop those */
      pkt_ref_dec(pkt);
      return;
    }
  }