mirror of https://github.com/alibaba/MNN.git
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
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//
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// ShapeStft.cpp
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// MNN
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//
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// Created by MNN on 2024/11/26.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#ifdef MNN_BUILD_AUDIO
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#include "shape/SizeComputer.hpp"
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#include "core/Macro.h"
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#include "core/TensorUtils.hpp"
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namespace MNN {
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class StftOpComputer : public SizeComputer {
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virtual bool onComputeSize(const MNN::Op* op, const std::vector<Tensor*>& inputs,
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const std::vector<Tensor*>& outputs) const override {
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int sample_length = inputs[0]->elementSize();
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auto stft = op->main_as_StftParam();
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bool abs = stft->abs();
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int n_fft = stft->n_fft();
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int hop_length = stft->hop_length();
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int frames = (sample_length - n_fft) / hop_length + 1;
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// Scalar
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outputs[0]->buffer().dimensions = 2;
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outputs[0]->setLength(0, frames);
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outputs[0]->setLength(1, n_fft / 2 + 1);
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outputs[0]->buffer().type = inputs[0]->getType();
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TensorUtils::getDescribe(outputs[0])->dimensionFormat = TensorUtils::getDescribe(inputs[0])->dimensionFormat;
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return true;
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}
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};
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REGISTER_SHAPE_AUDIO(StftOpComputer, OpType_Stft);
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} // namespace MNN
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#endif // MNN_BUILD_AUDIO
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