mirror of https://github.com/alibaba/MNN.git
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
//
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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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#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 batch_size = inputs[0]->length(0);
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int signal_length = inputs[0]->length(1);
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outputs[0]->buffer().dimensions = 4;
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outputs[0]->setLength(3, 2);
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outputs[0]->setLength(0, batch_size);
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int frame_length = inputs[2]->length(0);
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int nstfts = ((signal_length - frame_length) / inputs[1]->host<int>()[0]) + 1;
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outputs[0]->setLength(1, nstfts);
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int dft_unique_bins;
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if (op->main_as_StftParam()->abs()) {
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dft_unique_bins = frame_length / 2 + 1;
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} else {
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dft_unique_bins = frame_length;
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}
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outputs[0]->setLength(2, dft_unique_bins);
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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_INPUTS(StftOpComputer, OpType_Stft, std::vector<int>{1});
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} // namespace MNN
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