Interpolation: First working but buggy version using libsamplerate

git-svn-id: svn://localhost/ardour2/branches/3.0@5255 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 21 insertions, 16 deletions

diff --git a/libs/ardour/ardour/interpolation.h b/libs/ardour/ardour/interpolation.h
index fc75451707..d0ba3c48bc 100644
--- a/libs/ardour/ardour/interpolation.h
+++ b/libs/ardour/ardour/interpolation.h
@@ -1,4 +1,6 @@
 #include <math.h>
+#include <samplerate.h>
+
 #include "ardour/types.h"
 
 #ifndef __interpolation_h__
@@ -8,26 +10,29 @@ namespace ARDOUR {
 
 class Interpolation {
 protected:
-	double   _speed, _target_speed;
-    	    
+	double   _speed;
+	
+	SRC_STATE*            state;
+	std::vector<SRC_DATA> data;
+	
+	int        error;
+	
+	void reset_state ();
+	
 public:
-        Interpolation () : _speed(0.0L) {}
+        Interpolation ();
+        ~Interpolation ();
     
-        void set_speed (double new_speed)          { _speed = new_speed; }
-        void set_target_speed (double new_speed)   { _target_speed = new_speed; }
-
-        double target_speed()          const { return _target_speed; }
-        double speed()                 const { return _speed; }
+        void   set_speed (double new_speed);
+        void   set_target_speed (double new_speed)   {}
+        double speed ()                        const { return _speed;      }
+        
+        void add_channel_to (int input_buffer_size, int output_buffer_size);
+        void remove_channel_from (); 
  
-        virtual nframes_t interpolate (nframes_t nframes, Sample* input, Sample* output) = 0;
-};
-
-class LinearInterpolation : public Interpolation {
-public:
-        nframes_t interpolate (nframes_t nframes, Sample* input, Sample* output);
+        nframes_t interpolate (int channel, nframes_t nframes, Sample* input, Sample* output);
 };
 
 } // namespace ARDOUR
 
-#endif
-
+#endif
\ No newline at end of file