Add a dedicated mono variable resampler version

2 files changed, 74 insertions, 0 deletions

diff --git a/libs/zita-resampler/zita-resampler/resampler-table.h b/libs/zita-resampler/zita-resampler/resampler-table.h
index 6fcc0a37fa..e4c0ef757b 100644
--- a/libs/zita-resampler/zita-resampler/resampler-table.h
+++ b/libs/zita-resampler/zita-resampler/resampler-table.h
@@ -49,6 +49,7 @@ private:
 
 	friend class Resampler;
 	friend class VResampler;
+	friend class VMResampler;
 
 	Resampler_table     *_next;
 	unsigned int         _refc;
diff --git a/libs/zita-resampler/zita-resampler/vmresampler.h b/libs/zita-resampler/zita-resampler/vmresampler.h
new file mode 100644
index 0000000000..52789ebff1
--- /dev/null
+++ b/libs/zita-resampler/zita-resampler/vmresampler.h
@@ -0,0 +1,73 @@
+// ----------------------------------------------------------------------------
+//
+//  Copyright (C) 2006-2012 Fons Adriaensen <fons@linuxaudio.org>
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+
+
+#ifndef _ZITA_VMRESAMPLER_H_
+#define _ZITA_VMRESAMPLER_H_
+
+#include "zita-resampler/zresampler_visibility.h"
+#include "zita-resampler/resampler-table.h"
+
+namespace ArdourZita {
+
+class LIBZRESAMPLER_API VMResampler
+{
+public:
+	VMResampler (void);
+	~VMResampler (void);
+
+	int  setup (unsigned int hlen);
+	int  setup (unsigned int hlen, double frel);
+
+	void   clear (void);
+	int    reset (void);
+	int    inpsize (void) const;
+	double inpdist (void) const;
+	int    process (void);
+
+	void   set_phase (double p);
+	void   set_rrfilt (double t);
+	double set_rratio (double r);
+
+	unsigned int         inp_count;
+	unsigned int         out_count;
+	float               *inp_data;
+	float               *out_data;
+	void                *inp_list;
+	void                *out_list;
+
+private:
+	enum { NPHASE = 256 };
+
+	Resampler_table     *_table;
+	unsigned int         _inmax;
+	unsigned int         _index;
+	unsigned int         _nread;
+	double               _phase;
+	double               _pstep;
+	double               _qstep;
+	double               _wstep;
+	float               *_buff;
+	float               *_c1;
+	float               *_c2;
+};
+
+};
+
+#endif