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Diffstat (limited to 'extern/audaspace/include/fx/ConvolverReader.h')
| -rw-r--r-- | extern/audaspace/include/fx/ConvolverReader.h | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/extern/audaspace/include/fx/ConvolverReader.h b/extern/audaspace/include/fx/ConvolverReader.h deleted file mode 100644 index 2ce917daec5..00000000000 --- a/extern/audaspace/include/fx/ConvolverReader.h +++ /dev/null @@ -1,198 +0,0 @@ -/******************************************************************************* -* Copyright 2015-2016 Juan Francisco Crespo Galán -* -* 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 ConvolverReader.h -* @ingroup fx -* The ConvolverReader class. -*/ - -#include "IReader.h" -#include "ISound.h" -#include "Convolver.h" -#include "ImpulseResponse.h" -#include "util/FFTPlan.h" -#include "util/ThreadPool.h" - -#include <memory> -#include <vector> -#include <future> - -AUD_NAMESPACE_BEGIN - -/** -* This class represents a reader for a sound that can be modified depending on a given impulse response. -*/ -class AUD_API ConvolverReader : public IReader -{ -private: - /** - * The current position. - */ - int m_position; - - /** - * The reader of the input sound. - */ - std::shared_ptr<IReader> m_reader; - - /** - * The impulse response in the frequency domain. - */ - std::shared_ptr<ImpulseResponse> m_ir; - - /** - * The FFT size, given by the FFTPlan. - */ - int m_N; - - /** - * The length of the impulse response fragments, m_N/2 will be used. - */ - int m_M; - - /** - * The max length of the input slices, m_N/2 will be used. - */ - int m_L; - - /** - * The array of convolvers that will be used, one per channel. - */ - std::vector<std::unique_ptr<Convolver>> m_convolvers; - - /** - * The output buffer in which the convolved data will be written and from which the reader will read. - */ - sample_t* m_outBuffer; - - /** - * A vector of buffers (one per channel) on which the audio signal will be separated per channel so it can be convolved. - */ - std::vector<sample_t*> m_vecInOut; - - /** - * Current position in which the m_outBuffer is being read. - */ - int m_outBufferPos; - - /** - * Effective length of the m_outBuffer. - */ - int m_eOutBufLen; - - /** - * Real length of the m_outBuffer. - */ - int m_outBufLen; - - /** - * Flag indicating whether the end of the sound has been reached or not. - */ - bool m_eosReader; - - /** - * Flag indicating whether the end of the extra data generated in the convolution has been reached or not. - */ - bool m_eosTail; - - /** - * The number of channels of the sound to be convolved. - */ - int m_inChannels; - - /** - * The number of channels of the impulse response. - */ - int m_irChannels; - - /** - * The number of threads used for channels. - */ - int m_nChannelThreads; - - /** - * Length of the input data to be used by the channel threads. - */ - int m_lastLengthIn; - - /** - * A shared ptr to a thread pool. - */ - std::shared_ptr<ThreadPool> m_threadPool; - - /** - * A vector of futures to sync tasks. - */ - std::vector<std::future<int>> m_futures; - - // delete copy constructor and operator= - ConvolverReader(const ConvolverReader&) = delete; - ConvolverReader& operator=(const ConvolverReader&) = delete; - -public: - /** - * Creates a new convolver reader. - * \param reader A reader of the input sound to be assigned to this reader. - * \param ir A shared pointer to an impulseResponse object that will be used to convolve the sound. - * \param threadPool A shared pointer to a ThreadPool object with 1 or more threads. - * \param plan A shared pointer to and FFT plan that will be used for convolution. - * \exception Exception thrown if impulse response doesn't match the specs (number fo channels and rate) of the input reader. - */ - ConvolverReader(std::shared_ptr<IReader> reader, std::shared_ptr<ImpulseResponse> ir, std::shared_ptr<ThreadPool> threadPool, std::shared_ptr<FFTPlan> plan); - virtual ~ConvolverReader(); - - virtual bool isSeekable() const; - 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); - -private: - /** - * Divides a sound buffer in several buffers, one per channel. - * \param buffer The buffer that will be divided. - * \param len The length of the buffer. - */ - void divideByChannel(const sample_t* buffer, int len); - - /** - * Joins several buffers (one per channel) into the m_outBuffer. - * \param start The starting position from which the m_outBuffer will be written. - * \param len The amout of samples that will be joined. - */ - void joinByChannel(int start, int len); - - /** - * Loads the m_outBuffer with data. - */ - void loadBuffer(); - - /** - * The function that the threads will run. It will process a subset of channels. - * \param id An id number that will determine which subset of channels will be processed. - * \param input A flag that will indicate if thare is input data. - * -If true there is new input data. - * -If false there isn't new input data. - * \return The number of samples obtained. - */ - int threadFunction(int id, bool input); -}; - -AUD_NAMESPACE_END
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