zhao：1增加录音方法，2增加视频格式

Common/system/FFMpeg.cs

 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
 using System.Linq;
 using System.Text;
 using VisioForge.Shared.NAudio.CoreAudioApi;
     public class FFMpeg
     {
         Process myProcess = null;
-
         /// <summary>
-        /// 录屏
+        /// ffmpeg输出日志文件地址  每个文件2MB左右
+        /// </summary>
+        string LogPath = "";
+        /// <summary>
+        /// 录制屏幕
         /// </summary>
         /// <param name="PathName">文件存储路径</param>
-        public void RunFFmpeg(string PathName)
+        /// <param name="VideoType">视频类型</param>
+        public void StartRecordingVideo(string PathName, string VideoType)
         {
             Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
             Debug.WriteLine(KillProcessArray.Length.ToString());
                 KillProcess.Kill();
             }
             myProcess = new Process();
+            LogPath = CreateffmpegLog();
             string MicrophoneName = GetMicrophone();
             myProcess.StartInfo.FileName = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg/bin/ffmpeg.exe");   //ffmpeg.exe的绝对路径
-            if(string.IsNullOrWhiteSpace(MicrophoneName))
+            switch (VideoType.ToUpper())
             {
-                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 avi " + PathName;  //ffmpeg的参数
+                case "MP4":
+                    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 avi " + PathName;  //ffmpeg的参数
+                    }
+                    else
+                    {
+                        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 -f dshow -i video=\"screen-capture-recorder\" -pix_fmt yuv420p -vcodec h264 -preset:v ultrafast -tune:v zerolatency -acodec aac -ar 44100 -ac 2 " + PathName;  //ffmpeg的参数
+                    }
+                    break;
+                case "AVI":
+                case "FLV":
+                    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 "+ VideoType.ToLower() + " " + PathName;  //ffmpeg的参数
+                    }
+                    else
+                    {
+                        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 -f dshow -i video=\"screen-capture-recorder\" -pix_fmt yuv420p -vcodec h264 -preset:v ultrafast -tune:v zerolatency -acodec aac -ar 44100 -ac 2 -f " + VideoType.ToLower() + " " + PathName;  //ffmpeg的参数
+                    }
+                    break;
+                default:
+                    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 avi " + PathName;  //ffmpeg的参数
+                    }
+                    else
+                    {
+                        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 -f dshow -i video=\"screen-capture-recorder\" -pix_fmt yuv420p -vcodec h264 -preset:v ultrafast -tune:v zerolatency -acodec aac -ar 44100 -ac 2 " + PathName;  //ffmpeg的参数
+                    }
+                    break;
+            }
+            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
+            myProcess.ErrorDataReceived += new DataReceivedEventHandler(Output);
+            myProcess.Start();
+            myProcess.BeginErrorReadLine();
+        }
+
+        /// <summary>
+        /// 录制音频
+        /// </summary>
+        /// <param name="Mp3Path">MP3音频位置</param>
+        private void StartRecordingAudio(string Mp3Path)
+        {
+            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
+            Debug.WriteLine(KillProcessArray.Length.ToString());
+            foreach (var KillProcess in KillProcessArray)
+            {
+                KillProcess.Kill();
+            }
+            myProcess = new Process();
+            LogPath = CreateffmpegLog();
+            this.myProcess.StartInfo.FileName = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg/bin/ffmpeg.exe");   //ffmpeg.exe的绝对路径
+            string MicrophoneName = GetMicrophone();
+            if (string.IsNullOrWhiteSpace(MicrophoneName))
+            {
+                myProcess.StartInfo.Arguments = "-f dshow -i audio=\"virtual-audio-capturer\" " + Mp3Path;
             }
             else
             {
-                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 -f dshow -i video=\"screen-capture-recorder\" -pix_fmt yuv420p -vcodec h264 -preset:v ultrafast -tune:v zerolatency -acodec aac -ar 44100 -ac 2 -f avi " + PathName;  //ffmpeg的参数
-
+                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 " + Mp3Path;
             }
             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 += new DataReceivedEventHandler(Output);
-            myProcess.Start();
-            myProcess.BeginErrorReadLine();
+            myProcess.Start();                //启动线程
+            myProcess.BeginErrorReadLine();   //开始异步读取
         }
+
         /// <summary>
         /// 停止录制
         /// </summary>
             if (myProcess == null)
                 return;
             myProcess.StandardInput.WriteLine("q");//在这个进程的控制台中模拟输入q,用于暂停录制
-            myProcess.Close();
-            myProcess.Dispose();
+            myProcess.Close();//关闭进程
+            myProcess.Dispose();//释放资源
             myProcess = null;
             //myProcess.Kill();
         }
-        /// <summary>
-        /// 输出结果
-        /// </summary>
-        /// <param name="sendProcess"></param>
-        /// <param name="output"></param>
-        private void Output(object sendProcess, DataReceivedEventArgs output)
-        {
-            if (!String.IsNullOrEmpty(output.Data))
-                Debug.WriteLine(output.Data.ToString());
-        }
 
         /// <summary>
         /// 合成视频
         /// </summary>
-        /// <param name="ImageListPath">图片列表位置 命名为1.png</param>
+        /// <param name="ImageListPath">图片列表位置 命名为1.png 2.png</param>
         /// <param name="Mp3Path">MP3音频位置</param>
         /// <param name="VideoSavePath">视频保存位置</param>
-        /// <param name="frequency">每秒帧率</param>
-        private void SynthesisVideo(string ImageListPath,string Mp3Path,string VideoSavePath,int frequency)
+        /// <param name="Frequency">每秒帧率</param>
+        /// <param name="VideoWidth">视频宽度</param>
+        /// <param name="VideoHeight">视频高度</param>
+        /// <param name="VideoType">视频类型  MP4 FLV AVI</param>
+        private void SynthesisVideo(string ImageListPath, string Mp3Path, string VideoSavePath, int Frequency, int VideoWidth, int VideoHeight, string VideoType)
         {
             Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
             Debug.WriteLine(KillProcessArray.Length.ToString());
             {
                 KillProcess.Kill();
             }
-            Process myProcess = new Process();
+            myProcess = new Process();
+            LogPath=CreateffmpegLog();
             this.myProcess.StartInfo.FileName = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg/bin/ffmpeg.exe");   //ffmpeg.exe的绝对路径
-            myProcess.StartInfo.Arguments = @"-y -r "+ frequency + " -i " +
-                ImageListPath + @"%d.png -i " +
-                Mp3Path + @" -s 800x800 -vcodec mpeg4 " +
-                VideoSavePath;
-            myProcess.StartInfo.UseShellExecute = false;
-            myProcess.StartInfo.RedirectStandardError = true;
-            myProcess.StartInfo.CreateNoWindow = true;
+            switch (VideoType.ToUpper())
+            {
+                case "MP4":
+                    myProcess.StartInfo.Arguments = @"-y -r " + Frequency + " -i " +
+                        ImageListPath + @"%d.png -i " +
+                        Mp3Path + @" -s " + VideoWidth + "x" + VideoHeight + " -vcodec mpeg4 " +
+                        VideoSavePath;
+                    break;
+                case "AVI":
+                    myProcess.StartInfo.Arguments = @"-y -r " + Frequency + " -i " +
+                        ImageListPath + @"%d.png -i " +
+                        Mp3Path + @" -s " + VideoWidth + "x" + VideoHeight + " -f AVI " +
+                        VideoSavePath;
+                    break;
+                case "FLV":
+                    myProcess.StartInfo.Arguments = @"-y -r " + Frequency + " -i " +
+                        ImageListPath + @"%d.png -i " +
+                        Mp3Path + @" -s " + VideoWidth + "x" + VideoHeight + " -f FLV " +
+                        VideoSavePath;
+                    break;
+                default:
+                    myProcess.StartInfo.Arguments = @"-y -r " + Frequency + " -i " +
+                        ImageListPath + @"%d.png -i " +
+                        Mp3Path + @" -s " + VideoWidth + "x" + VideoHeight + " -vcodec mpeg4 " +
+                        VideoSavePath;
+                    break;
+            }
+            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 += new DataReceivedEventHandler(Output);
-            //p.ErrorDataReceived += new DataReceivedEventHandler((s, message) => { Console.WriteLine(message.Data); });
-            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.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
+            //生成视频后删除图片保存列表
+            FileToolsCommon.DeleteDirectory(ImageListPath);
+            
+        }
+        
+        /// <summary>
+        /// 生成缩略图
+        /// </summary>
+        /// <param name="VideoPath">视频地址</param>
+        /// <param name="ImagePath">图片地址</param>
+        void GenerateThumbnails(string VideoPath,string ImagePath)
+        {
+            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
+            Debug.WriteLine(KillProcessArray.Length.ToString());
+            foreach (var KillProcess in KillProcessArray)
+            {
+                KillProcess.Kill();
+            }
+            myProcess = new Process();
+            LogPath = CreateffmpegLog();
+            this.myProcess.StartInfo.FileName = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg/bin/ffmpeg.exe");   //ffmpeg.exe的绝对路径
+            //myProcess.StartInfo.Arguments = "-i \"" + VideoPath + "\" -ss 1 -vframes 1 -r 1 -ac 1 -ab 2 -s " + thubWidth + "*" + thubHeight + " -f image2 \"" + ImagePath + "\"";
+            myProcess.StartInfo.Arguments = "-i \"" + VideoPath + "\" -ss 1 -vframes 1 -r 1 -ac 1 -ab 2 -f image2 \"" + ImagePath + "\"";
+            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 += new DataReceivedEventHandler(Output);
+            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
+        }
+
+        /// <summary>
+        /// 创建日志文件
+        /// </summary>
+        /// <returns></returns>
+        string CreateffmpegLog()
+        {
+            string LogFileName = DateTime.Now.ToString("yyyyMMdd");
+            string LogFilePath = FileToolsCommon.GetFileAbsolutePath("/Log/FFMpegLog/");
+            FileToolsCommon.CreateDirectory(LogFilePath);
+            string LogName = LogFilePath + LogFileName + ".log";
+            try
+            {
+                if (!FileToolsCommon.IsExistFile(LogName))
+                {
+                    FileToolsCommon.CreateFile(LogName);
+                    FileToolsCommon.AppendText(LogName, "\r\n****************************************************************************************************" +
+                        "****************************************************************************************************\r\n");
+                    return LogName;
+                }
+                else
+                {
+                    int num = 0;
+                    while (FileToolsCommon.GetFileSizeByMB(LogName) > 2)
+                    {
+                        num++;
+                        LogName = LogFilePath + LogFileName + "_" + num + ".log";
+                        FileToolsCommon.CreateFile(LogName);
+                    }
+                    FileToolsCommon.AppendText(LogName, "\r\n****************************************************************************************************" +
+                        "****************************************************************************************************\r\n");
+                    return LogName;
+                }
+            }
+            catch (Exception)
+            {
+                return LogName;
+            }
+        }
+
+        /// <summary>
+        /// 输出结果
+        /// </summary>
+        /// <param name="sendProcess"></param>
+        /// <param name="output"></param>
+        private void Output(object sendProcess, DataReceivedEventArgs output)
+        {
+            if (!String.IsNullOrEmpty(output.Data))
+            {
+                FileToolsCommon.AppendText(LogPath, output.Data);
+            }
         }
 
         //private void P_ErrorDataReceived(object sender, DataReceivedEventArgs e)
         //    using (StreamWriter fs = new StreamWriter("E:\\项目\\测试\\Wpf测试\\bin\\Debug\\ffmpeg\\log.txt", true))
         //    {
         //        fs.WriteLine(e.Data);
+        //        Debug.WriteLine(output.Data.ToString());
         //    }
         //}
 

XHWK.WKTool/App.config

     <startup> 
         <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
     </startup>
- <appSettings>
+  <appSettings>
     <!--图片压缩等级-->
     <add key="ImageCompressionLevel" value="30" />
+    <!--文件存放路径  路径\账户名\讲解名称_x.MP4-->
+    <add key="VideoSavePath" value="30" />
+    <!--视频格式 1、MP4 2、FlV 3、AVI-->
+    <add key="VideoType" value="1" />
   </appSettings>
 </configuration>