From 183d3fb4932b94378debea32f3114c9793bef567 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sun, 4 Aug 2019 01:37:36 +0200
Subject: [PATCH] Implement missing required virtual fn -- fix Mac builds

---
 libs/ardour/ardour/caimportable.h | 7 ++++---
 libs/ardour/caimportable.cc       | 7 ++++++-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/libs/ardour/ardour/caimportable.h b/libs/ardour/ardour/caimportable.h
index 82f36f9ab6..446dd70b09 100644
--- a/libs/ardour/ardour/caimportable.h
+++ b/libs/ardour/ardour/caimportable.h
@@ -39,11 +39,12 @@ class LIBARDOUR_API CAImportableSource : public ImportableSource {
 	virtual ~CAImportableSource();
 
 	samplecnt_t read (Sample* buffer, samplecnt_t nframes);
-	uint32_t  channels() const;
+	uint32_t    channels() const;
 	samplecnt_t length() const;
 	samplecnt_t samplerate() const;
-	void      seek (samplepos_t pos);
-	bool clamped_at_unity () const { return false; }
+	void        seek (samplepos_t pos);
+	samplepos_t natural_position ();
+	bool        clamped_at_unity () const { return false; }
 
    protected:
 #ifdef COREAUDIO105
diff --git a/libs/ardour/caimportable.cc b/libs/ardour/caimportable.cc
index 9b6f4919e6..6553a398a9 100644
--- a/libs/ardour/caimportable.cc
+++ b/libs/ardour/caimportable.cc
@@ -136,4 +136,9 @@ CAImportableSource::seek (samplepos_t pos)
 }
 
 
-
+samplepos_t
+CAImportableSource::natural_position ()
+{
+	// TODO: extract timecode, if any
+	return 0;
+}