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layer: fix ownership when failing to add clip

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If a clip is already part of a layer, then adding it to another layer
should fail. Previously, in this case, `ges_layer_add_clip` was adding a
reference to the clip instead, without subsequently giving up ownership.
This meant that the clip would be left with an unowned reference.
This has now been corrected by also calling `unref` after the
`ref_sink`.

Note that, since `clip` is already part of `current_layer`, it should
already be non-floating, so the `ref_sink`-`unref` should do nothing
overall. But we keep both to make the ownership (transfer floating/none)
explicit.
This commit is contained in:
Henry Wilkes 2020-02-18 09:17:09 +00:00 committed by Thibault Saunier
parent a03afa5476
commit 1332ed674a
1 changed files with 1 additions and 2 deletions
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3
ges/ges-layer.c
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@ -631,9 +631,8 @@ ges_layer_add_clip (GESLayer * layer, GESClip * clip)
current_layer = ges_clip_get_layer (clip);
if (G_UNLIKELY (current_layer)) {
GST_WARNING ("Clip %p already belongs to another layer", clip);
/* FIXME: why are we reffing the clip if it belongs to another
* layer? */
gst_object_ref_sink (clip);
gst_object_unref (clip);
gst_object_unref (current_layer);
return FALSE;