[gstreamer-bugs] [Bug 372797] Seek on DVD not performed relative to title

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-ugly | Ver: 0.10.4





------- Comment #6 from Jason Gerard DeRose  2006-11-10 23:57 UTC -------
Well, I think this is a correctly functioning implementation of
gst_dvd_read_src_get_sector_from_time().  On all the DVDs I've testing it on,
it seems to be returning the correct map_ent from the correct tmap.  However,
seeking still isn't working correctly as there seems to be seek related bugs
elsewhere.


/* returns the sector in the index at (or before) the given time, or -1 */
static gint
gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
{
  gint i, j;
  vts_tmap_t tmap;

  if (src->vts_tmapt == NULL)
    return -1;

  i = src->pgc_id - 1;
  if (!i < src->vts_tmapt->nr_of_tmaps)
    return -1;

  tmap = src->vts_tmapt->tmap[i];
  j = ts / GST_SECOND / tmap.tmu - 1;

  if (j < 0) {
    /* FIXME: we should actually return the start sector for the title */
    return tmap.map_ent[0] & 0x7fffffff;
  }
  else if (j >= tmap.nr_of_entries) {
    /* This means we are trying to seek beyond the end time of the current
    title. */
    return tmap.map_ent[tmap.nr_of_entries-1] & 0x7fffffff;
  }
  else {
    return tmap.map_ent[j] & 0x7fffffff;
  }
}


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