void make_new_filepath(char * fname, char * extension, char * basedir, char *output)
{
	/* we get the file path without a extension */
	char fname_without_extension[MAXPATHLEN];
	char * fname_extension = strrchr(fname, '.');
	int characters_to_copy = strlen(fname) - strlen(fname_extension);
	strncpy(fname_without_extension, fname, characters_to_copy);

	/* now we get the file name only */
	char * fname_without_filepath = strrchr(fname_without_extension, '/');
	int offset = strlen(fname_without_extension) - strlen(fname_without_filepath);
	int fname_without_extension_length = strlen(fname_without_extension);
	char fname_without_path_extension[MAXPATHLEN];

	for(int i = offset+1, no = 0; i < fname_without_extension_length; i++, no++)
	{
		fname_without_path_extension[no] = fname_without_extension[i];
		fname_without_path_extension[no+1] = '\0';
	}

	/* Create output file name with specified extension */
	sprintf (output, "%s/%s%s", basedir.c_str(), fname_without_path_extension, extension);
}