Functions to manipulate files. More...

#include "headers/file_operations.h"

Include dependency graph for file_operations.cpp:

Functions
std::vector< int >	loadMasterFramesFromFile (const EXPERIMENT &experiment_settings)
	Function to load the master frames from a file defined in the field read_masterframes_filename in the experiment_settings. More...

bool	saveMasterFramesToFile (const EXPERIMENT &experiment_settings, const std::vector< int > masters_frames)
	Function to save the calculated master frames into a file defined in the field save_masterframes_filename in the experiment_settings. More...

void	readSelectedFramesCSV (std::string filename, std::vector< int > &selected_frames)
	Function to read a CSV composed by frames selected by the selection algorithm. More...

std::string	getExperimentId ()
	Function that manages the experiments ID automatically. More...

std::istream &	goToLine (std::istream &file, const unsigned int line)
	Function that set the file pointer to the desired line, if it is smaller than the file number of lines. More...

double	getSemanticCost (const EXPERIMENT &experiment_settings, const int frame_src, const int frame_dst)
	Function that returns the semantic cost of the transition from the frame_src to the frame_dst. More...

std::vector< std::vector< double > >	loadInstabilityCostsFromFile (const EXPERIMENT &experiment_settings)
	loadInstabilityCostsFromFile Loads the instability costs from a CSV file (matrix format). More...

std::vector< std::vector< double > >	loadOpticalFlow (const EXPERIMENT &experiment_settings)
	loadOpticalFlow Loads the Optical Flow calculated by the FlowNet from a CSV file. More...

bool	str2bool (std::string str)
	str2bool convert a string to boolean. More...

std::string	filter_string (std::string str)
	filter_string filter a string to remove white spaces and line break. More...

Detailed Description

Functions to manipulate files.

Functions to read from TXT and CSV files, write data on files.

Function Documentation

std::string filter_string ( std::string str )

filter_string filter a string to remove white spaces and line break.

Parameters

string

Returns: string

Author: Felipe Cadar Chamone

Date: 14/07/2017

std::string getExperimentId ( )

Function that manages the experiments ID automatically.

Returns: std::string - The experiment id formatted by 4 digits

Author: Washington Luis de Souza Ramos

Date: 19/04/2016

double getSemanticCost	(	const EXPERIMENT &	experiment_settings,
		const int	frame_src,
		const int	frame_dst
	)

Function that returns the semantic cost of the transition from the frame_src to the frame_dst.

Function that returns the semantic cost of the transiction from the frame_src to the frame_dst.

The file where the semantic cost will be find is defined in the experiment_settings

Parameters

experiment_settings	- variable with the experiment setting.
frame_src	- first frame of the transition.
frame_dst	- last frame of the transition.

Returns: double - The semantic cost of the transiction of the frame_src to the frame_dst. Returns the complementary value ( 1 - x ).

Author: Michel Melo da Silva

Date: 30/04/2016

std::istream& goToLine	(	std::istream &	file,
		const unsigned int	line
	)

Function that set the file pointer to the desired line, if it is smaller than the file number of lines.

Parameters

file	- std::ifstream object where the file is read.
line	- line where the header read will be set.

Returns: std::istream - Reference to the file in the selected line.

Author: Michel Melo da Silva

Date: 30/04/2016

std::vector< std::vector<double> > loadInstabilityCostsFromFile ( const EXPERIMENT & experiment_settings )

loadInstabilityCostsFromFile Loads the instability costs from a CSV file (matrix format).

Parameters

experiment_settings

Returns: The matrix of instability costs

Author: Washington Luis de Souza Ramos

Date: 12/09/2016

std::vector<int> loadMasterFramesFromFile ( const EXPERIMENT & experiment_settings )

Function to load the master frames from a file defined in the field read_masterframes_filename in the experiment_settings.

Parameters

experiment_settings - variable with the experiment setting.

Returns: std::vector - vector of master frames loaded from file describle in the experiment settings.

Author: Michel Melo da Silva

Date: 08/04/2016

std::vector< std::vector<double> > loadOpticalFlow ( const EXPERIMENT & experiment_settings )

loadOpticalFlow Loads the Optical Flow calculated by the FlowNet from a CSV file.

Parameters

experiment_settings

Returns: Vector[j][i] with the optical flow from the image j to j+1 (i=0 is dx and i=1 is dy).

Author: Michel Melo da Silva

Date: 09/01/2017

void readSelectedFramesCSV	(	std::string	filename,
		std::vector< int > &	selected_frames
	)

Function to read a CSV composed by frames selected by the selection algorithm.

Parameters

filename	- std::string with the filename of the CSV file that contains the selected frames of the reduced video.
selected_frames	- vector to save the selected frames.

Returns: void

Author: Washington Luis de Souza Ramos

Date: 14/04/2016

bool saveMasterFramesToFile	(	const EXPERIMENT &	experiment_settings,
		const std::vector< int >	masters_frames
	)

Function to save the calculated master frames into a file defined in the field save_masterframes_filename in the experiment_settings.

Parameters

experiment_settings	- variable with the experiment setting.
masters_frames	- vector of master frames to be saved in file describle in the experiment settings.

Returns: bool true - if the writer return sucess while writing the file.
bool false - if the writer return fail while writing the file.

Author: Michel Melo da Silva

Date: 08/04/2016

bool str2bool ( std::string str )

str2bool convert a string to boolean.

Parameters

string

Returns: boolean

Author: Felipe Cadar Chamone

Date: 14/07/2017