1 files changed, 18 insertions, 3 deletions
diff --git a/source/blender/sequencer/intern/image_cache.h b/source/blender/sequencer/intern/image_cache.h
index 60031311985..e7827c15305 100644
--- a/source/blender/sequencer/intern/image_cache.h
+++ b/source/blender/sequencer/intern/image_cache.h
@@ -27,15 +27,29 @@
 extern "C" {
 #endif
 
+#include "SEQ_render.h" /* Needed for #eSeqTaskId. */
+
 struct ImBuf;
 struct Main;
 struct Scene;
 struct SeqRenderData;
 struct Sequence;
 
-#ifdef __cplusplus
-}
-#endif
+typedef struct SeqCacheKey {
+  struct SeqCache *cache_owner;
+  void *userkey;
+  struct SeqCacheKey *link_prev; /* Used for linking intermediate items to final frame. */
+  struct SeqCacheKey *link_next; /* Used for linking intermediate items to final frame. */
+  struct Sequence *seq;
+  struct SeqRenderData context;
+  float frame_index;    /* Usually same as timeline_frame. Mapped to media for RAW entries. */
+  float timeline_frame; /* Only for reference - used for freeing when cache is full. */
+  float cost;           /* In short: render time(s) divided by playback frame duration(s) */
+  bool is_temp_cache;   /* this cache entry will be freed before rendering next frame */
+  /* ID of task for assigning temp cache entries to particular task(thread, etc.) */
+  eSeqTaskId task_id;
+  int type;
+} SeqCacheKey;
 
 struct ImBuf *seq_cache_get(const struct SeqRenderData *context,
                             struct Sequence *seq,
@@ -67,6 +81,7 @@ void seq_cache_cleanup_sequence(struct Scene *scene,
                                 bool force_seq_changed_range);
 void seq_cache_thumbnail_cleanup(Scene *scene, rctf *view_area);
 bool seq_cache_is_full(void);
+float seq_cache_frame_index_to_timeline_frame(struct Sequence *seq, float frame_index);
 
 #ifdef __cplusplus
 }