diff options
Diffstat (limited to 'extern/audaspace/include/fx/DynamicIIRFilterReader.h')
-rw-r--r-- | extern/audaspace/include/fx/DynamicIIRFilterReader.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/extern/audaspace/include/fx/DynamicIIRFilterReader.h b/extern/audaspace/include/fx/DynamicIIRFilterReader.h new file mode 100644 index 00000000000..9e2267243ce --- /dev/null +++ b/extern/audaspace/include/fx/DynamicIIRFilterReader.h @@ -0,0 +1,60 @@ +/******************************************************************************* + * Copyright 2009-2016 Jörg Müller + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + ******************************************************************************/ + +#pragma once + +/** + * @file DynamicIIRFilterReader.h + * @ingroup fx + * The DynamicIIRFilterReader class. + */ + +#include "fx/IIRFilterReader.h" + +AUD_NAMESPACE_BEGIN + +class IDynamicIIRFilterCalculator; + +/** + * This class is for dynamic infinite impulse response filters with simple + * coefficients that change depending on the sample rate. + */ +class AUD_API DynamicIIRFilterReader : public IIRFilterReader +{ +private: + /** + * The sound for dynamically recalculating filter coefficients. + */ + std::shared_ptr<IDynamicIIRFilterCalculator> m_calculator; + +public: + /** + * Creates a new DynamicIIRFilterReader. + * @param reader The reader the filter is applied on. + * @param calculator The IDynamicIIRFilterCalculator that recalculates the filter coefficients. + */ + DynamicIIRFilterReader(std::shared_ptr<IReader> reader, + std::shared_ptr<IDynamicIIRFilterCalculator> calculator); + + /** + * The function sampleRateChanged is called whenever the sample rate of the + * underlying reader changes and thus updates the filter coefficients. + * @param rate The new sample rate. + */ + virtual void sampleRateChanged(SampleRate rate); +}; + +AUD_NAMESPACE_END |