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-rw-r--r--xbmc/utils/rfft.h39
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diff --git a/xbmc/utils/rfft.h b/xbmc/utils/rfft.h
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--- a/xbmc/utils/rfft.h
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-/*
- * Copyright (C) 2015-2018 Team Kodi
- * This file is part of Kodi - https://kodi.tv
- *
- * SPDX-License-Identifier: GPL-2.0-or-later
- * See LICENSES/README.md for more information.
- */
-
-#pragma once
-
-#include <vector>
-
-#include <kissfft/kiss_fftr.h>
-
-//! \brief Class performing a RFFT of interleaved stereo data.
-class RFFT
-{
-public:
- //! \brief The constructor creates a RFFT plan.
- //! \brief size Length of time data for a single channel.
- //! \brief windowed Whether or not to apply a Hann window to data.
- RFFT(int size, bool windowed=false);
-
- //! \brief Free the RFFT plan
- ~RFFT();
-
- //! \brief Calculate FFTs
- //! \param input Input data of size 2*m_size
- //! \param output Output data of size m_size.
- void calc(const float* input, float* output);
-protected:
- //! \brief Apply a Hann window to a buffer.
- //! \param data Vector with data to apply window to.
- static void hann(std::vector<kiss_fft_scalar>& data);
-
- size_t m_size; //!< Size for a single channel.
- bool m_windowed; //!< Whether or not a Hann window is applied.
- kiss_fftr_cfg m_cfg; //!< FFT plan
-};