zhao：1优化日志，完善ffmpeg日志。2解决部分播放器无法解码播放录屏

Common/system/FFMpeg.cs

             switch (Extension.ToUpper())
             {
                 case ".MP4":
-                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -i desktop -vcodec libx264 -preset:v ultrafast -tune:v zerolatency -acodec aac " + PathName;
+                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -i desktop -pix_fmt yuv420p -vf scale=trunc(iw/2)*2:trunc(ih/2)*2 -vcodec libx264 -preset:v ultrafast -tune:v zerolatency -acodec aac " + PathName;
                     //myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f dshow -i video=\"screen-capture-recorder\" -pix_fmt yuv420p -vcodec libx264 -preset:v ultrafast -tune:v zerolatency -acodec aac " + PathName;
                     //if (string.IsNullOrWhiteSpace(MicrophoneName))
                     //{
                     break;
                 case ".AVI":
                 case ".FLV":
-                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -i desktop -vcodec libx264 -preset:v ultrafast -tune:v zerolatency -acodec aac -f " + Extension.ToLower().Replace(".", "") + " " + PathName;
+                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -i desktop -pix_fmt yuv420p -vf scale=trunc(iw/2)*2:trunc(ih/2)*2 -vcodec libx264 -preset:v ultrafast -tune:v zerolatency -acodec aac -f " + Extension.ToLower().Replace(".", "") + " " + PathName;
                     //if (string.IsNullOrWhiteSpace(MicrophoneName))
                     //{
                     //    myProcess.StartInfo.Arguments = "-f dshow -i video=\"screen-capture-recorder\" -f dshow -i audio=\"virtual-audio-capturer\" -vcodec libx264 -acodec libmp3lame -r 15 -crf 22 -f " + Extension.ToLower() + " " + PathName;  //ffmpeg的参数
                     //}
                     break;
                 default:
-                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -i desktop -vcodec libx264 -preset:v ultrafast -tune:v zerolatency -acodec aac " + PathName;
+                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -i desktop -pix_fmt yuv420p -vf scale=trunc(iw/2)*2:trunc(ih/2)*2 -vcodec libx264 -preset:v ultrafast -tune:v zerolatency -acodec aac " + PathName;
                     break;
             }
             if (OutputVideoLog)
             {
                 LogHelper.WriteInfoLog("【录屏】：" + myProcess.StartInfo.Arguments);
             }
+            FileToolsCommon.AppendText(LogPath, "【录屏】：" + myProcess.StartInfo.Arguments + "\r\n");
             myProcess.StartInfo.UseShellExecute = false;           //不使用操作系统外壳程序启动
             myProcess.StartInfo.RedirectStandardError = true;      //重定向标准错误输出
             myProcess.StartInfo.CreateNoWindow = true;             //不显示程序窗口
             myProcess.StartInfo.FileName = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg/bin/ffmpeg.exe");   //ffmpeg.exe的绝对路径
             if (IsRecordSpeaker && IsRecordMicrophone)
             {
-                myProcess.StartInfo.Arguments = "-f dshow -i audio=\"virtual-audio-capturer\"  -f dshow -i audio=\"" +
+                myProcess.StartInfo.Arguments = "-f dshow -i audio=\"virtual-audio-capturer\" -f dshow -i audio=\"" +
                         MicrophoneName + "\" -filter_complex amix=inputs=2:duration=first:dropout_transition=2 " + PathName;
             }
             else if (IsRecordSpeaker)
             }
             if (OutputVideoLog)
                 LogHelper.WriteInfoLog("【录音】：" + myProcess.StartInfo.Arguments);
+            FileToolsCommon.AppendText(LogPath, "【录音】：" + myProcess.StartInfo.Arguments + "\r\n");
             myProcess.StartInfo.UseShellExecute = false;           //不使用操作系统外壳程序启动
             myProcess.StartInfo.RedirectStandardError = true;      //重定向标准错误输出
             myProcess.StartInfo.CreateNoWindow = true;             //不显示程序窗口
                 }
                 if (OutputVideoLog)
                     LogHelper.WriteInfoLog("【图片音频合成视频】：" + myProcess.StartInfo.Arguments);
+                FileToolsCommon.AppendText(LogPath, "【图片音频合成视频】：" + myProcess.StartInfo.Arguments + "\r\n");
                 myProcess.StartInfo.UseShellExecute = false;           //不使用操作系统外壳程序启动
                 myProcess.StartInfo.RedirectStandardError = true;      //重定向标准错误输出
                 myProcess.StartInfo.CreateNoWindow = true;             //不显示程序窗口
             }
             if (OutputVideoLog)
                 LogHelper.WriteInfoLog("【音视频合成】：" + myProcess.StartInfo.Arguments);
+            FileToolsCommon.AppendText(LogPath, "【音视频合成】：" + myProcess.StartInfo.Arguments + "\r\n");
             myProcess.StartInfo.UseShellExecute = false;           //不使用操作系统外壳程序启动
             myProcess.StartInfo.RedirectStandardError = true;      //重定向标准错误输出
             myProcess.StartInfo.CreateNoWindow = true;             //不显示程序窗口
 
                 if (OutputVideoLog)
                     LogHelper.WriteInfoLog("【生成缩略图】：" + myProcess.StartInfo.Arguments);
+                FileToolsCommon.AppendText(LogPath, "【生成缩略图】：" + myProcess.StartInfo.Arguments + "\r\n");
                 myProcess.StartInfo.UseShellExecute = false;           //不使用操作系统外壳程序启动
                 myProcess.StartInfo.RedirectStandardError = true;      //重定向标准错误输出
                 myProcess.StartInfo.CreateNoWindow = true;             //不显示程序窗口
 
                 if (OutputVideoLog)
                     LogHelper.WriteInfoLog("【视频转码】：" + myProcess.StartInfo.Arguments);
+                FileToolsCommon.AppendText(LogPath,"【视频转码】：" + myProcess.StartInfo.Arguments + "\r\n");
                 myProcess.StartInfo.UseShellExecute = false;           //不使用操作系统外壳程序启动
                 myProcess.StartInfo.RedirectStandardError = true;      //重定向标准错误输出
                 myProcess.StartInfo.CreateNoWindow = true;             //不显示程序窗口
         {
             if (!string.IsNullOrEmpty(output.Data))
             {
-                FileToolsCommon.AppendText(LogPath, output.Data);
+                FileToolsCommon.AppendText(LogPath, "【" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") +"】:");
+                FileToolsCommon.AppendText(LogPath, output.Data+"\r\n");
             }
         }
         #region 麦克风声卡检测
                 try
                 {
 
-                while (myProcess != null)
-                {
-                    Thread.Sleep(100);
-                }
-                myProcess = new Process();
-                LogPath = CreateffmpegLog();
-                myProcess.StartInfo.FileName = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg/bin/ffmpeg.exe");   //ffmpeg.exe的绝对路径
-                myProcess.StartInfo.Arguments = " -list_devices true -f dshow -i dummy";
-                if (OutputVideoLog)
-                    LogHelper.WriteInfoLog("【音视频合成】：" + myProcess.StartInfo.Arguments);
-                myProcess.StartInfo.UseShellExecute = false;           //不使用操作系统外壳程序启动
-                myProcess.StartInfo.RedirectStandardError = true;      //重定向标准错误输出
-                myProcess.StartInfo.CreateNoWindow = true;             //不显示程序窗口
-                myProcess.StartInfo.RedirectStandardInput = true;      //用于模拟该进程控制台的输入
-                                                                       //外部程序(这里是FFMPEG)输出流时候产生的事件,这里是把流的处理过程转移到下面的方法中,详细请查阅MSDN
-                myProcess.ErrorDataReceived += GetDevInfoData;
-                myProcess.Start();                 //启动线程
-                myProcess.BeginErrorReadLine();    //开始异步读取
-                myProcess.WaitForExit();           //阻塞等待进程结束
-                myProcess.Close();                 //关闭进程
-                myProcess.Dispose();               //释放资源
-                myProcess = null;
+                    while (myProcess != null)
+                    {
+                        Thread.Sleep(100);
+                    }
+                    myProcess = new Process();
+                    LogPath = CreateffmpegLog();
+                    myProcess.StartInfo.FileName = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg/bin/ffmpeg.exe");   //ffmpeg.exe的绝对路径
+                    myProcess.StartInfo.Arguments = " -list_devices true -f dshow -i dummy";
+                    if (OutputVideoLog)
+                        LogHelper.WriteInfoLog("【获取设备信息】：" + myProcess.StartInfo.Arguments);
+                    FileToolsCommon.AppendText(LogPath, "【获取设备信息】：" + myProcess.StartInfo.Arguments + "\r\n");
+                    myProcess.StartInfo.UseShellExecute = false;           //不使用操作系统外壳程序启动
+                    myProcess.StartInfo.RedirectStandardError = true;      //重定向标准错误输出
+                    myProcess.StartInfo.CreateNoWindow = true;             //不显示程序窗口
+                    myProcess.StartInfo.RedirectStandardInput = true;      //用于模拟该进程控制台的输入
+                                                                           //外部程序(这里是FFMPEG)输出流时候产生的事件,这里是把流的处理过程转移到下面的方法中,详细请查阅MSDN
+                    myProcess.ErrorDataReceived += GetDevInfoData;
+                    myProcess.Start();                 //启动线程
+                    myProcess.BeginErrorReadLine();    //开始异步读取
+                    myProcess.WaitForExit();           //阻塞等待进程结束
+                    myProcess.Close();                 //关闭进程
+                    myProcess.Dispose();               //释放资源
+                    myProcess = null;
                 }
                 catch (Exception ex)
                 {