diff options
Diffstat (limited to 'intern/audaspace/FX/AUD_DynamicIIRFilterFactory.h')
-rw-r--r-- | intern/audaspace/FX/AUD_DynamicIIRFilterFactory.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/intern/audaspace/FX/AUD_DynamicIIRFilterFactory.h b/intern/audaspace/FX/AUD_DynamicIIRFilterFactory.h new file mode 100644 index 00000000000..56d56a977d4 --- /dev/null +++ b/intern/audaspace/FX/AUD_DynamicIIRFilterFactory.h @@ -0,0 +1,65 @@ +/* + * $Id$ + * + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * Copyright 2009-2011 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 General Public License as published by + * the Free Software Foundation; either version 2 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Audaspace; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file audaspace/FX/AUD_DynamicIIRFilterFactory.h + * \ingroup audfx + */ + +#ifndef AUD_DYNAMICIIRFILTERFACTORY +#define AUD_DYNAMICIIRFILTERFACTORY + +#include "AUD_EffectFactory.h" +#include <vector> + +/** + * This factory creates a IIR filter reader. + * + * This means that on sample rate change the filter recalculates its + * coefficients. + */ +class AUD_DynamicIIRFilterFactory : public AUD_EffectFactory +{ +public: + /** + * Creates a new Dynmic IIR filter factory. + * \param factory The input factory. + */ + AUD_DynamicIIRFilterFactory(AUD_Reference<AUD_IFactory> factory); + + virtual AUD_Reference<AUD_IReader> createReader(); + + /** + * Recalculates the filter coefficients. + * \param rate The sample rate of the audio data. + * \param[out] b The input filter coefficients. + * \param[out] a The output filter coefficients. + */ + virtual void recalculateCoefficients(AUD_SampleRate rate, + std::vector<float>& b, + std::vector<float>& a)=0; +}; + +#endif // AUD_DYNAMICIIRFILTERFACTORY |