Renaming of files in preparation for code style tools.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit fce86b22a2367f1be1f9aae5e1ba3d18d1371b74)

1 files changed, 106 insertions, 0 deletions

diff --git a/arts/modules/effects/synth_voice_removal_impl.cpp b/arts/modules/effects/synth_voice_removal_impl.cpp
new file mode 100644
index 00000000..2ade0879
--- /dev/null
+++ b/arts/modules/effects/synth_voice_removal_impl.cpp
@@ -0,0 +1,106 @@
+/*  This file is part of the KDE project
+    Copyright (C) 2002-2003 Matthias Kretz <kretz@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License version 2 as published by the Free Software Foundation.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+
+*/
+// $Id$
+
+#include "artsmoduleseffects.h"
+#include <stdsynthmodule.h>
+#include <c_filter_stuff.h>
+#include <algorithm>
+
+using namespace Arts;
+using namespace std;
+
+class Synth_VOICE_REMOVAL_impl : virtual public Synth_VOICE_REMOVAL_skel,
+                                 virtual public StdSynthModule
+{
+protected:
+	float _position, _frequency;
+	filter fleft, fright;
+
+public:
+	Synth_VOICE_REMOVAL_impl()
+		: _position( 0 )
+		, _frequency( 200 )
+	{
+	}
+
+	float position() { return _position; }
+	void position(float newPosition)
+	{
+		if(newPosition != _position)
+		{
+			_position = newPosition;
+			position_changed(newPosition);
+		}
+	}
+
+	float frequency() { return _frequency; }
+	void frequency(float newFrequency)
+	{
+		if(newFrequency != _frequency)
+		{
+			_frequency = newFrequency;
+			// the shelve-lowpass-filter is extremely sensitive to frequencies which
+			// are out of it's range (it produces NaN's then) so we'll be careful ;)
+			if(_frequency > 22000.0) _frequency = 22000.0;
+			if(_frequency < 1.0) _frequency = 1.0;
+			frequency_changed(_frequency);
+		}
+	}
+	
+	void streamInit()
+	{
+		initfilter(&fleft);
+		initfilter(&fright);
+	}
+	
+	void calculateBlock(unsigned long samples)
+	{
+		setfilter_shelvelowpass(&fleft,_frequency,80.0);
+		setfilter_shelvelowpass(&fright,_frequency,80.0);
+
+		unsigned long i;
+		for (i=0; i<samples; i++)
+		{
+			fleft.x = inleft[i];// * min(float(1), (1 - _position));
+			fleft.y = fleft.cx * fleft.x + fleft.cx1 * fleft.x1 + fleft.cx2
+				* fleft.x2 + fleft.cy1 * fleft.y1 + fleft.cy2 * fleft.y2;
+			fleft.x2 = fleft.x1;
+			fleft.x1 = fleft.x;
+			fleft.y2 = fleft.y1;
+			fleft.y1 = fleft.y;
+			float highleft = inleft[i] - 0.95 * fleft.y;
+
+			fright.x = inright[i];// * min(float(1), (1 + _position));
+			fright.y = fright.cx * fright.x + fright.cx1 * fright.x1 + fright.cx2
+				* fright.x2 + fright.cy1 * fright.y1 + fright.cy2 * fright.y2;
+			fright.x2 = fright.x1;
+			fright.x1 = fright.x;
+			fright.y2 = fright.y1;
+			fright.y1 = fright.y;
+			float highright = inright[i] - 0.95 * fright.y;
+
+			outleft[i] = (inleft[i] - highright);// / min(float(1), (1 - _position));
+			outright[i] = (inright[i] - highleft);// / min(float(1), (1 + _position));
+		}
+	}
+
+};
+
+REGISTER_IMPLEMENTATION(Synth_VOICE_REMOVAL_impl);