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51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/*
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libspecbleach - A spectral processing library
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Copyright 2022 Luciano Dato <lucianodato@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef STFT_PROCESSOR_H
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#define STFT_PROCESSOR_H
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#include "../spectral_processor.h"
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#include "../utils/spectral_utils.h"
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#include "fft_transform.h"
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#include <stdbool.h>
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#include <stdint.h>
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typedef struct StftProcessor StftProcessor;
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StftProcessor* stft_processor_initialize(
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uint32_t sample_rate, float stft_frame_size, uint32_t overlap_factor,
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ZeroPaddingType padding_type, uint32_t zeropadding_amount,
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WindowTypes input_window, WindowTypes output_window);
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void stft_processor_free(StftProcessor* self);
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uint32_t get_stft_latency(StftProcessor* self);
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uint32_t get_stft_fft_size(StftProcessor* self);
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uint32_t get_stft_real_spectrum_size(StftProcessor* self);
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// Receives an input and output buffer with a a number_of_samples and does the
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// STFT transform applying any spectral_processing. It works similar to qsort,
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// because it receives a function pointer of any spectral processing that needs
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// to be applied in between the analysis and the synthesis
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bool stft_processor_run(StftProcessor* self, uint32_t number_of_samples,
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const float* input, float* output,
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spectral_processing spectral_processing,
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SpectralProcessorHandle spectral_processor);
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#endif
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