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native/nvdsinfer_custom_impl_Yolo/utils.cpp

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+/*
+ * Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+
+ * Edited by Marcos Luciano
+ * https://www.github.com/marcoslucianops
+ */
+
+#include "utils.h"
+
+#include <experimental/filesystem>
+#include <iomanip>
+#include <algorithm>
+#include <math.h>
+
+static void leftTrim(std::string& s)
+{
+    s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](int ch) { return !isspace(ch); }));
+}
+
+static void rightTrim(std::string& s)
+{
+    s.erase(std::find_if(s.rbegin(), s.rend(), [](int ch) { return !isspace(ch); }).base(), s.end());
+}
+
+std::string trim(std::string s)
+{
+    leftTrim(s);
+    rightTrim(s);
+    return s;
+}
+
+float clamp(const float val, const float minVal, const float maxVal)
+{
+    assert(minVal <= maxVal);
+    return std::min(maxVal, std::max(minVal, val));
+}
+
+bool fileExists(const std::string fileName, bool verbose)
+{
+    if (!std::experimental::filesystem::exists(std::experimental::filesystem::path(fileName)))
+    {
+        if (verbose) std::cout << "File does not exist: " << fileName << std::endl;
+        return false;
+    }
+    return true;
+}
+
+std::vector<float> loadWeights(const std::string weightsFilePath, const std::string& networkType)
+{
+    assert(fileExists(weightsFilePath));
+    std::cout << "\nLoading pre-trained weights" << std::endl;
+    std::ifstream file(weightsFilePath, std::ios_base::binary);
+    assert(file.good());
+    std::string line;
+
+    if (networkType.find("yolov2") != std::string::npos && networkType.find("yolov2-tiny") == std::string::npos)
+    {
+        // Remove 4 int32 bytes of data from the stream belonging to the header
+        file.ignore(4 * 4);
+    }
+    else
+    {
+        // Remove 5 int32 bytes of data from the stream belonging to the header
+        file.ignore(4 * 5);
+    }
+
+    std::vector<float> weights;
+    char floatWeight[4];
+    while (!file.eof())
+    {
+        file.read(floatWeight, 4);
+        assert(file.gcount() == 4);
+        weights.push_back(*reinterpret_cast<float*>(floatWeight));
+        if (file.peek() == std::istream::traits_type::eof()) break;
+    }
+    std::cout << "Loading weights of " << networkType << " complete"
+              << std::endl;
+    std::cout << "Total weights read: " << weights.size() << std::endl;
+    return weights;
+}
+
+std::string dimsToString(const nvinfer1::Dims d)
+{
+    std::stringstream s;
+    assert(d.nbDims >= 1);
+    for (int i = 0; i < d.nbDims - 1; ++i)
+    {
+        s << std::setw(4) << d.d[i] << " x";
+    }
+    s << std::setw(4) << d.d[d.nbDims - 1];
+
+    return s.str();
+}
+
+void displayDimType(const nvinfer1::Dims d)
+{
+    std::cout << "(" << d.nbDims << ") ";
+    for (int i = 0; i < d.nbDims; ++i)
+    {
+        switch (d.type[i])
+        {
+        case nvinfer1::DimensionType::kSPATIAL: std::cout << "kSPATIAL "; break;
+        case nvinfer1::DimensionType::kCHANNEL: std::cout << "kCHANNEL "; break;
+        case nvinfer1::DimensionType::kINDEX: std::cout << "kINDEX "; break;
+        case nvinfer1::DimensionType::kSEQUENCE: std::cout << "kSEQUENCE "; break;
+        }
+    }
+    std::cout << std::endl;
+}
+
+int getNumChannels(nvinfer1::ITensor* t)
+{
+    nvinfer1::Dims d = t->getDimensions();
+    assert(d.nbDims == 3);
+
+    return d.d[0];
+}
+
+uint64_t get3DTensorVolume(nvinfer1::Dims inputDims)
+{
+    assert(inputDims.nbDims == 3);
+    return inputDims.d[0] * inputDims.d[1] * inputDims.d[2];
+}
+
+void printLayerInfo(std::string layerIndex, std::string layerName, std::string layerInput,
+                    std::string layerOutput, std::string weightPtr)
+{
+    std::cout << std::setw(6) << std::left << layerIndex << std::setw(24) << std::left << layerName;
+    std::cout << std::setw(20) << std::left << layerInput << std::setw(20) << std::left
+              << layerOutput;
+    std::cout << std::setw(7) << std::left << weightPtr << std::endl;
+}