Exiv2を用いてExifを出力するテスト

ExifExtractTest.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            string checkPath = @"F:\Pictures\";
            string outputFileName = @"C:\Users\Daisuke\Desktop\output.csv";
            string exiv2ExePath = @"C:\Users\Daisuke\Desktop\exiv2-0.23-win\exiv2.exe";

            //1.指定したディレクトリ下のjpgを拾う
            foreach (string file in Directory.EnumerateFiles(checkPath, "*.jpg", SearchOption.AllDirectories))
            {
                if (file.Contains(".Picasa3Temp")) { continue; }

                //2.各jpgに対して
                //2-1.exifデータを取得
                //標準出力を横取り
                string exiv2Output = StartExiv2(exiv2ExePath, file);
                //各行を:でsplit後、Trim
                var sb = new StringBuilder();
                new List<string>(exiv2Output.Replace("\r","").Split('\n')).ForEach( data => 
                {
                    if (data.Contains("File name") || data.Contains("Camera model")
                        || data.Contains("Image timestamp") || data.Contains("Focal length"))
                    {
                        sb.Append(data.Split(new char[]{':'}, 2)[1].Trim()).Append("\t");
                    }
                });
                sb.AppendLine();
                //2-2.tsv形式でファイルに追記
                File.AppendAllText(outputFileName, sb.ToString());
            }
        }

        private static string StartExiv2(string exiv2ExePath, string targetFilePath)
        {
            Process process = new Process();
            process.StartInfo.FileName = exiv2ExePath;
            process.StartInfo.Arguments = "\"" + targetFilePath + "\"";

            process.StartInfo.UseShellExecute = false;
            process.StartInfo.RedirectStandardOutput = true;
            process.StartInfo.CreateNoWindow = false;
            process.Start();

            process.WaitForExit();
            string output = process.StandardOutput.ReadToEnd();

            process.Close();
            return output;
        }
    }
}