1 files changed, 15 insertions, 1 deletions
diff --git a/source/blender/sequencer/intern/strip_time.c b/source/blender/sequencer/intern/strip_time.c
index 40d7fade308..b8b6f62c7aa 100644
--- a/source/blender/sequencer/intern/strip_time.c
+++ b/source/blender/sequencer/intern/strip_time.c
@@ -409,7 +409,7 @@ static bool strip_exists_at_frame(SeqCollection *all_strips, const int timeline_
 {
   Sequence *seq;
   SEQ_ITERATOR_FOREACH (seq, all_strips) {
-    if ((seq->startdisp <= timeline_frame) && (seq->enddisp > timeline_frame)) {
+    if (SEQ_time_strip_intersects_frame(seq, timeline_frame)) {
       return true;
     }
   }
@@ -468,3 +468,17 @@ void seq_time_gap_info_get(const Scene *scene,
     }
   }
 }
+
+/**
+ * Test if strip intersects with timeline frame.
+ * Note: This checks if strip would be rendered at this frame. For rendering it is assumed, that
+ * timeline frame has width of 1 frame and therefore ends at timeline_frame + 1
+ *
+ * \param seq: Sequence to be checked
+ * \param timeline_frame: absolute frame position
+ * \return true if strip intersects with timeline frame.
+ */
+bool SEQ_time_strip_intersects_frame(const Sequence *seq, const int timeline_frame)
+{
+  return (seq->startdisp <= timeline_frame) && (seq->enddisp > timeline_frame);
+}