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track: Keep in cache the GSequenceIter so we get a faster acces to them

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This commit is contained in:
Thibault Saunier 2013-01-03 10:34:17 -03:00
parent c9e970eb36
commit e54f1292b6
1 changed files with 7 additions and 46 deletions
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53
ges/ges-track.c
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@ -53,6 +53,7 @@ struct _GESTrackPrivate
/*< private > */
GESTimeline *timeline;
GSequence *tckobjs_by_start;
GHashTable *tckobjs_iter;
GList *gaps;
guint64 duration;
@ -396,49 +397,6 @@ remove_object_internal (GESTrack * track, GESTrackObject * object)
return TRUE;
}
static GSequenceIter *
lookup_trackobj_it (GSequence * seq, GESTrackObject * object)
{
GSequenceIter *iter, *tmpiter;
GESTrackObject *found, *tmptckobj;
iter = g_sequence_lookup (seq, object,
(GCompareDataFunc) objects_start_compare, NULL);
found = g_sequence_get (iter);
/* We have the same TrackObject so we are all fine */
if (found == object)
return iter;
if (!g_sequence_iter_is_end (iter)) {
/* Looking frontward for the good TrackObject */
tmpiter = iter;
while ((tmpiter = g_sequence_iter_next (tmpiter))) {
if (g_sequence_iter_is_end (tmpiter))
break;
tmptckobj = g_sequence_get (tmpiter);
if (tmptckobj == object)
return tmpiter;
}
}
if (!g_sequence_iter_is_begin (iter)) {
/* Looking backward for the good TrackObject */
tmpiter = iter;
while ((tmpiter = g_sequence_iter_prev (tmpiter))) {
tmptckobj = g_sequence_get (tmpiter);
if (tmptckobj == object)
return tmpiter;
}
}
GST_ERROR_OBJECT (object, "TrackObject not found this should never happen");
return NULL;
}
static void
dispose_tckobjs_foreach (GESTrackObject * tckobj, GESTrack * track)
{
@ -497,6 +455,7 @@ ges_track_dispose (GObject * object)
GESTrackPrivate *priv = track->priv;
/* Remove all TrackObjects and drop our reference */
g_hash_table_unref (priv->tckobjs_iter);
g_sequence_foreach (track->priv->tckobjs_by_start,
(GFunc) dispose_tckobjs_foreach, track);
g_sequence_free (priv->tckobjs_by_start);
@ -615,6 +574,7 @@ ges_track_init (GESTrack * self)
self->priv->composition = gst_element_factory_make ("gnlcomposition", NULL);
self->priv->updating = TRUE;
self->priv->tckobjs_by_start = g_sequence_new (NULL);
self->priv->tckobjs_iter = g_hash_table_new (g_direct_hash, g_direct_equal);
self->priv->create_element_for_gaps = NULL;
self->priv->gaps = NULL;
@ -808,8 +768,9 @@ ges_track_add_object (GESTrack * track, GESTrackObject * object)
}
g_object_ref_sink (object);
g_sequence_insert_sorted (track->priv->tckobjs_by_start, object,
(GCompareDataFunc) objects_start_compare, NULL);
g_hash_table_insert (track->priv->tckobjs_iter, object,
g_sequence_insert_sorted (track->priv->tckobjs_by_start, object,
(GCompareDataFunc) objects_start_compare, NULL));
g_signal_emit (track, ges_track_signals[TRACK_OBJECT_ADDED], 0,
GES_TRACK_OBJECT (object));
@ -876,7 +837,7 @@ ges_track_remove_object (GESTrack * track, GESTrackObject * object)
priv = track->priv;
if (remove_object_internal (track, object) == TRUE) {
it = lookup_trackobj_it (priv->tckobjs_by_start, object);
it = g_hash_table_lookup (priv->tckobjs_iter, object);
g_sequence_remove (it);
resort_and_fill_gaps (track);