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clip: make auto-transitions less expensive when adding to track

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Only check the overlaps with the actual track element that was just added
to the track. This reduces the tree traversal by one order.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-editing-services/-/merge_requests/169>
This commit is contained in:
Henry Wilkes 2020-04-21 15:06:03 +01:00
parent cdac205db6
commit 30a821e136
3 changed files with 16 additions and 2 deletions
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4
ges/ges-clip.c
View file

@ -2611,8 +2611,8 @@ ges_clip_add_child_to_track (GESClip * clip, GESTrackElement * child,
}
if (GES_IS_SOURCE (el))
timeline_tree_create_transitions (timeline_get_tree (timeline),
ges_timeline_find_auto_transition);
timeline_tree_create_transitions_for_track_element (timeline_get_tree
(timeline), el, ges_timeline_find_auto_transition);
return el;
}

10
ges/ges-timeline-tree.c
View file

@ -2079,6 +2079,16 @@ create_transitions (GNode * node,
return FALSE;
}
void
timeline_tree_create_transitions_for_track_element (GNode * root,
GESTrackElement * element, GESTreeGetAutoTransitionFunc get_auto_transition)
{
GNode *node = find_node (root, element);
g_assert (node);
create_transitions (node, get_auto_transition);
}
void
timeline_tree_create_transitions (GNode * root,
GESTreeGetAutoTransitionFunc get_auto_transition)

4
ges/ges-timeline-tree.h
View file

@ -54,6 +54,10 @@ typedef GESAutoTransition *
GESTrackElement * next,
GstClockTime transition_duration);
void
timeline_tree_create_transitions_for_track_element (GNode * root,
GESTrackElement * element,
GESTreeGetAutoTransitionFunc get_auto_transition);
void timeline_tree_create_transitions (GNode *root,
GESTreeGetAutoTransitionFunc get_auto_transition);