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Diffstat (limited to 'extern/audaspace/include/respec/JOSResampleReader.h')
-rw-r--r-- | extern/audaspace/include/respec/JOSResampleReader.h | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/extern/audaspace/include/respec/JOSResampleReader.h b/extern/audaspace/include/respec/JOSResampleReader.h deleted file mode 100644 index e9dd3b4220b..00000000000 --- a/extern/audaspace/include/respec/JOSResampleReader.h +++ /dev/null @@ -1,129 +0,0 @@ -/******************************************************************************* - * 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 JOSResampleReader.h - * @ingroup respec - * The JOSResampleReader class. - */ - -#include "respec/ResampleReader.h" -#include "util/Buffer.h" - -AUD_NAMESPACE_BEGIN - -/** - * This resampling reader uses Julius O. Smith's resampling algorithm. - */ -class AUD_API JOSResampleReader : public ResampleReader -{ -private: - typedef void (JOSResampleReader::*resample_f)(double target_factor, int length, sample_t* buffer); - - /** - * The half filter length. - */ - static const int m_len; - - /** - * The sample step size for the filter. - */ - static const int m_L; - - /** - * The filter coefficients. - */ - static const float m_coeff[]; - - /** - * The reader channels. - */ - Channels m_channels; - - /** - * The sample position in the cache. - */ - unsigned int m_n; - - /** - * The subsample position in the cache. - */ - double m_P; - - /** - * The input data buffer. - */ - Buffer m_buffer; - - /** - * Double buffer for the sums. - */ - Buffer m_sums; - - /** - * How many samples in the cache are valid. - */ - int m_cache_valid; - - /** - * Resample function. - */ - resample_f m_resample; - - /** - * Last resampling factor. - */ - double m_last_factor; - - // delete copy constructor and operator= - JOSResampleReader(const JOSResampleReader&) = delete; - JOSResampleReader& operator=(const JOSResampleReader&) = delete; - - /** - * Resets the resampler to its initial state. - */ - void AUD_LOCAL reset(); - - /** - * Updates the buffer to be as small as possible for the coming reading. - * \param size The size of samples to be read. - * \param factor The next resampling factor. - * \param samplesize The size of a sample. - */ - void AUD_LOCAL updateBuffer(int size, double factor, int samplesize); - - void AUD_LOCAL resample(double target_factor, int length, sample_t* buffer); - void AUD_LOCAL resample_mono(double target_factor, int length, sample_t* buffer); - void AUD_LOCAL resample_stereo(double target_factor, int length, sample_t* buffer); - -public: - /** - * Creates a resampling reader. - * \param reader The reader to mix. - * \param rate The target sampling rate. - */ - JOSResampleReader(std::shared_ptr<IReader> reader, SampleRate rate); - - virtual void seek(int position); - virtual int getLength() const; - virtual int getPosition() const; - virtual Specs getSpecs() const; - virtual void read(int& length, bool& eos, sample_t* buffer); -}; - -AUD_NAMESPACE_END |