Huge new year audio commit!

* Refactored the whole audaspace library to use float as sample format over all readers.
* Added new Readers like the linear resampler, envelope, lowpass, highpass and butterworth.
* Note: The butterworth filter isn't working correctly, some bug in there... Maybe also true for the envelope.
* Added a sound to f-curve operator that behaves mostly like the soundtracker script of technoestupido.

1 files changed, 66 insertions, 0 deletions

diff --git a/intern/audaspace/FX/AUD_LowpassFactory.h b/intern/audaspace/FX/AUD_LowpassFactory.h
new file mode 100644
index 00000000000..0455e2491e6
--- /dev/null
+++ b/intern/audaspace/FX/AUD_LowpassFactory.h
@@ -0,0 +1,66 @@
+/*
+ * $Id$
+ *
+ * ***** BEGIN LGPL LICENSE BLOCK *****
+ *
+ * Copyright 2009 Jörg Hermann Müller
+ *
+ * This file is part of AudaSpace.
+ *
+ * AudaSpace is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * AudaSpace 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with AudaSpace.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ***** END LGPL LICENSE BLOCK *****
+ */
+
+#ifndef AUD_LOWPASSFACTORY
+#define AUD_LOWPASSFACTORY
+
+#include "AUD_EffectFactory.h"
+
+/**
+ * This factory creates a lowpass filter reader.
+ */
+class AUD_LowpassFactory : public AUD_EffectFactory
+{
+private:
+	/**
+	 * The attack value in seconds.
+	 */
+	float m_frequency;
+
+	/**
+	 * The Q factor.
+	 */
+	float m_Q;
+
+public:
+	/**
+	 * Creates a new lowpass factory.
+	 * \param factory The input factory.
+	 * \param frequency The cutoff frequency.
+	 * \param Q The Q factor.
+	 */
+	AUD_LowpassFactory(AUD_IFactory* factory, float frequency, float Q = 1.0);
+
+	/**
+	 * Creates a new lowpass factory.
+	 * \param frequency The cutoff frequency.
+	 * \param Q The Q factor.
+	 */
+	AUD_LowpassFactory(float frequency, float Q = 1.0);
+
+	virtual AUD_IReader* createReader();
+};
+
+#endif //AUD_LOWPASSFACTORY