1 /* Copyright 2017 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #ifndef TENSORFLOW_CORE_KERNELS_SPECTROGRAM_TEST_UTILS_H_ 17 #define TENSORFLOW_CORE_KERNELS_SPECTROGRAM_TEST_UTILS_H_ 18 19 #include <complex> 20 #include <string> 21 #include <vector> 22 23 #include "tensorflow/core/framework/types.h" 24 25 namespace tensorflow { 26 27 // Reads a wav format file into a vector of floating-point values with range 28 // -1.0 to 1.0. 29 bool ReadWaveFileToVector(const string& file_name, std::vector<double>* data); 30 31 // Reads a binary file containing 32-bit floating point values in the 32 // form [real_1, imag_1, real_2, imag_2, ...] into a rectangular array 33 // of complex values where row_length is the length of each inner vector. 34 bool ReadRawFloatFileToComplexVector( 35 const string& file_name, int row_length, 36 std::vector<std::vector<std::complex<double> > >* data); 37 38 // Reads a CSV file of numbers in the format 1.1+2.2i,1.1,2.2i,3.3j into data. 39 void ReadCSVFileToComplexVectorOrDie( 40 const string& file_name, 41 std::vector<std::vector<std::complex<double> > >* data); 42 43 // Reads a 2D array of floats from an ASCII text file, where each line is a row 44 // of the array, and elements are separated by commas. 45 void ReadCSVFileToArrayOrDie(const string& filename, 46 std::vector<std::vector<float> >* array); 47 48 // Write a binary file containing 64-bit floating-point values for 49 // reading by, for example, MATLAB. 50 bool WriteDoubleVectorToFile(const string& file_name, 51 const std::vector<double>& data); 52 53 // Write a binary file containing 32-bit floating-point values for 54 // reading by, for example, MATLAB. 55 bool WriteFloatVectorToFile(const string& file_name, 56 const std::vector<float>& data); 57 58 // Write a binary file containing 64-bit floating-point values for 59 // reading by, for example, MATLAB. 60 bool WriteDoubleArrayToFile(const string& file_name, int size, 61 const double* data); 62 63 // Write a binary file containing 32-bit floating-point values for 64 // reading by, for example, MATLAB. 65 bool WriteFloatArrayToFile(const string& file_name, int size, 66 const float* data); 67 68 // Write a binary file in the format read by 69 // ReadRawDoubleFileToComplexVector above. 70 bool WriteComplexVectorToRawFloatFile( 71 const string& file_name, 72 const std::vector<std::vector<std::complex<double> > >& data); 73 74 // Generate a sine wave with the provided parameters, and populate 75 // data with the samples. 76 void SineWave(int sample_rate, float frequency, float duration_seconds, 77 std::vector<double>* data); 78 79 } // namespace tensorflow 80 81 #endif // TENSORFLOW_CORE_KERNELS_SPECTROGRAM_TEST_UTILS_H_ 82
