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timeline: Make sure not to add 2 times a TrackElement in the same track

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Without that, if a UriClip contains several tracks of a same type (ie.
video or audio...), we would add all the TrackElements to each track
making everything failling as we end up with several GNL sources at
the same position with the same priority.
This commit is contained in:
Thibault Saunier 2014-02-17 13:33:51 +01:00
parent f921277ac2
commit e9ecfef808
1 changed files with 35 additions and 4 deletions
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33
ges/ges-timeline.c
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@ -1944,7 +1944,9 @@ clip_track_element_added_cb (GESClip * clip,
{
guint i;
GESTrack *track;
gboolean is_source;
GPtrArray *tracks = NULL;
GESTrackElement *existing_src = NULL;
if (timeline->priv->ignore_track_element_added == clip) {
GST_DEBUG_OBJECT (timeline, "Ignoring element added (%" GST_PTR_FORMAT
@ -1980,14 +1982,27 @@ clip_track_element_added_cb (GESClip * clip,
/* We add the current element to the first track */
track = g_ptr_array_index (tracks, 0);
is_source = g_type_is_a (G_OBJECT_TYPE (track_element), GES_TYPE_SOURCE);
if (is_source)
existing_src = ges_clip_find_track_element (clip, track, GES_TYPE_SOURCE);
if (existing_src == NULL) {
if (!ges_track_add_element (track, track_element)) {
GST_WARNING_OBJECT (clip, "Failed to add track element to track");
ges_container_remove (GES_CONTAINER (clip),
GES_TIMELINE_ELEMENT (track_element));
gst_object_unref (track_element);
return;
}
} else {
GST_INFO_OBJECT (clip, "Already had a Source Element in %" GST_PTR_FORMAT
" of type %s, removing new one.", track,
G_OBJECT_TYPE_NAME (track_element));
ges_container_remove (GES_CONTAINER (clip),
GES_TIMELINE_ELEMENT (track_element));
}
gst_object_unref (track);
g_clear_object (&existing_src);
/* And create copies to add to other tracks */
timeline->priv->ignore_track_element_added = clip;
@ -1996,6 +2011,22 @@ clip_track_element_added_cb (GESClip * clip,
GESTrackElement *track_element_copy;
track = g_ptr_array_index (tracks, i);
if (is_source)
existing_src = ges_clip_find_track_element (clip, track, GES_TYPE_SOURCE);
if (existing_src == NULL) {
ges_container_remove (GES_CONTAINER (clip),
GES_TIMELINE_ELEMENT (track_element));
gst_object_unref (track);
continue;
} else {
GST_INFO_OBJECT (clip, "Already had a Source Element in %" GST_PTR_FORMAT
" of type %s, removing new one.", track,
G_OBJECT_TYPE_NAME (track_element));
ges_container_remove (GES_CONTAINER (clip),
GES_TIMELINE_ELEMENT (track_element));
}
g_clear_object (&existing_src);
track_element_copy =
GES_TRACK_ELEMENT (ges_timeline_element_copy (GES_TIMELINE_ELEMENT
(track_element), TRUE));