From cea436b7031590bbf93fa390115264bb37870a56 Mon Sep 17 00:00:00 2001
From: Thomas Wilshaw <thomaswilshaw@gmail.com>
Date: Wed, 11 Nov 2020 21:57:45 +0000
Subject: [PATCH] saveoitio: Add fix for to_json_file

The function to_json_file can delete it's SerializableObject if it
doesn't have a Retainer associated with it. This fix adds said
Retainer. Retainers clean them selves up when possibly_delete is
called on their associated object.
---
 app/task/project/saveotio/saveotio.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/task/project/saveotio/saveotio.cpp b/app/task/project/saveotio/saveotio.cpp
index 890d11dfd..ab3933ed9 100644
--- a/app/task/project/saveotio/saveotio.cpp
+++ b/app/task/project/saveotio/saveotio.cpp
@@ -24,11 +24,14 @@
 #include <opentimelineio/externalReference.h>
 #include <opentimelineio/gap.h>
 #include <opentimelineio/serializableCollection.h>
+#include <opentimelineio/serializableObject.h>
 #include <opentimelineio/transition.h>
 
 #include "node/block/transition/transition.h"
 #include "node/input/media/media.h"
 
+#define OTIO opentimelineio::OPENTIMELINEIO_VERSION
+
 OLIVE_NAMESPACE_ENTER
 
 SaveOTIOTask::SaveOTIOTask(ProjectPtr project) :
@@ -94,6 +97,7 @@ bool SaveOTIOTask::Run()
 opentimelineio::v1_0::Timeline *SaveOTIOTask::SerializeTimeline(SequencePtr sequence)
 {
   auto otio_timeline = new opentimelineio::v1_0::Timeline(sequence->name().toStdString());
+  OTIO::Timeline::Retainer<OTIO::Timeline>* time_retainer = new OTIO::Timeline::Retainer<OTIO::Timeline>(otio_timeline);
 
   if (!SerializeTrackList(sequence->viewer_output()->track_list(Timeline::kTrackTypeVideo), otio_timeline)
       || !SerializeTrackList(sequence->viewer_output()->track_list(Timeline::kTrackTypeAudio), otio_timeline)) {