4 files changed, 5 insertions, 5 deletions
diff --git a/source/blender/sequencer/intern/iterator.c b/source/blender/sequencer/intern/iterator.c
index dd343776200..0754d9b38ed 100644
--- a/source/blender/sequencer/intern/iterator.c
+++ b/source/blender/sequencer/intern/iterator.c
@@ -117,7 +117,7 @@ SeqCollection *SEQ_collection_create(void)
 /**
  * Return number of items in collection.
  */
-uint SEQ_collection_len(SeqCollection *collection)
+uint SEQ_collection_len(const SeqCollection *collection)
 {
   return BLI_gset_len(collection->set);
 }
diff --git a/source/blender/sequencer/intern/prefetch.c b/source/blender/sequencer/intern/prefetch.c
index b7dabda4a34..15609a76f5c 100644
--- a/source/blender/sequencer/intern/prefetch.c
+++ b/source/blender/sequencer/intern/prefetch.c
@@ -91,7 +91,7 @@ typedef struct PrefetchJob {
   bool stop;
 } PrefetchJob;
 
-static bool seq_prefetch_is_playing(Main *bmain)
+static bool seq_prefetch_is_playing(const Main *bmain)
 {
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
     if (screen->animtimer) {
@@ -101,7 +101,7 @@ static bool seq_prefetch_is_playing(Main *bmain)
   return false;
 }
 
-static bool seq_prefetch_is_scrubbing(Main *bmain)
+static bool seq_prefetch_is_scrubbing(const Main *bmain)
 {
 
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
diff --git a/source/blender/sequencer/intern/sequence_lookup.c b/source/blender/sequencer/intern/sequence_lookup.c
index 72567dc394e..25b42957d99 100644
--- a/source/blender/sequencer/intern/sequence_lookup.c
+++ b/source/blender/sequencer/intern/sequence_lookup.c
@@ -87,7 +87,7 @@ static void seq_sequence_lookup_rebuild(const struct Scene *scene, struct Sequen
   seq_sequence_lookup_build(scene, *lookup);
 }
 
-static bool seq_sequence_lookup_is_valid(struct SequenceLookup *lookup)
+static bool seq_sequence_lookup_is_valid(const struct SequenceLookup *lookup)
 {
   return (lookup->tag & SEQ_LOOKUP_TAG_INVALID) == 0;
 }
diff --git a/source/blender/sequencer/intern/utils.c b/source/blender/sequencer/intern/utils.c
index a287466dfb2..98640ea8a5c 100644
--- a/source/blender/sequencer/intern/utils.c
+++ b/source/blender/sequencer/intern/utils.c
@@ -530,7 +530,7 @@ void SEQ_alpha_mode_from_file_extension(Sequence *seq)
 
 /* called on draw, needs to be fast,
  * we could cache and use a flag if we want to make checks for file paths resolving for eg. */
-bool SEQ_sequence_has_source(Sequence *seq)
+bool SEQ_sequence_has_source(const Sequence *seq)
 {
   switch (seq->type) {
     case SEQ_TYPE_MASK: