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third_party/libspecbleach/src/shared/stft/stft_processor.h

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