xhwkclient/XHWK.WKTool/system/FFMpeg.cs

using AForge.Video.DirectShow;

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;

using VisioForge.Shared.NAudio.CoreAudioApi;
using VisioForge.Shared.NAudio.Wave;

namespace Common.system
{
    /// <summary>
    /// ffmpeg帮助类 创建人：赵耀 创建时间：：2020年8月22日 需要安装\SSCR\Setup Screen Capturer Recorder v0.12.10.exe
    /// 本地调试需要配置环境变量 将ffmpeg.exe位置配置到环境变量的path中
    /// </summary>
    public class FFMpeg
    {
        #region 变量

        public Process myProcess = null;

        /// <summary>
        /// 是否输出录课录屏日志
        /// </summary>
        public bool OutputVideoLog = FileToolsCommon.GetConfigValue("OutputVideoLog") != "0";

        /// <summary>
        /// ffmpeg输出日志文件地址 每个文件2MB左右
        /// </summary>
        private string LogPath = "";

        /// <summary>
        /// 是否可以录制扬声器
        /// </summary>
        private bool IsRecordSpeaker = true;

        /// <summary>
        /// 是否可以录制麦克风
        /// </summary>
        private bool IsRecordMicrophone = true;

        private string ffmpegPath = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg.exe");

        #endregion 变量

        /// <summary>
        /// 录制屏幕
        /// </summary>
        /// <param name="FilePath">文件存储路径</param>
        /// <param name="size">大小</param>
        /// <param name="RecordingSound">录制音频</param>
        /// <param name="RecordingMicrophone">录制麦克风</param>
        /// <param name="ErrMessage">错误信息</param>
        /// <param name="MicrophoneName">麦克风名</param>
        /// <returns></returns>
        public bool StartRecordingVideo(string FilePath, Size size, bool RecordingSound, bool RecordingMicrophone, out string ErrMessage, string MicrophoneName = null)
        {
            while (myProcess != null)
            {
                Thread.Sleep(100);
            }
            ErrMessage = null;
            //路径
            string Path = FileToolsCommon.GetDirectoryName(FilePath);
            string Extension = FileToolsCommon.GetIOExtension(FilePath);//扩展名
            //文件保存路径
            string PathName = GetRSFilePathName(FilePath);
            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
            foreach (Process KillProcess in KillProcessArray)
            {
                KillProcess.Kill();
            }
            myProcess = new Process();
            LogPath = CreateffmpegLog();

            if (string.IsNullOrWhiteSpace(MicrophoneName))
            {
                MicrophoneName = GetMicrophoneName();
            }

            #region 检测麦克风扬声器

            string AudioPath = FileToolsCommon.GetFileAbsolutePath("/temp/audio/");
            FileToolsCommon.CreateDirectory(AudioPath);
            string audioSpeakerPath = AudioPath + "adoS" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".m";//FileToolsCommon.GetFileAbsolutePath("adoS.m");
            string audioMicrophonePath = AudioPath + "adoM" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".m";//FileToolsCommon.GetFileAbsolutePath("adoM.m");
            try
            {
                FileToolsCommon.DeleteFile(audioSpeakerPath);
                FileToolsCommon.DeleteFile(audioMicrophonePath);
            }
            catch (Exception)
            {
            }
            //是否录制音频
            if (RecordingSound)
            {
                if (StartRecordSpeakerAudio(audioSpeakerPath))
                {
                    IsRecordSpeaker = true;
                }
                else
                {
                    //无法录制扬声器音频
                    IsRecordSpeaker = false;
                }
                StopRecordAudio(2);
                Thread.Sleep(100);
            }
            //是否录制麦克风
            if (RecordingMicrophone)
            {
                if (StartRecordAudio(audioMicrophonePath))
                {
                    IsRecordMicrophone = true;
                }
                else
                {
                    //无法录制麦克风
                    IsRecordMicrophone = false;
                }
                StopRecordAudio(1);
            }

            #endregion 检测麦克风扬声器

            myProcess.StartInfo.FileName = ffmpegPath;   //ffmpeg.exe的绝对路径
            string SpeakerStr = "";
            string MicrophoneStr = "";
            if (IsRecordSpeaker && RecordingSound)
            {
                SpeakerStr = "-f dshow -i audio=\"virtual-audio-capturer\" ";
            }
            if (IsRecordMicrophone && RecordingMicrophone)
            {
                if (!string.IsNullOrWhiteSpace(MicrophoneName))
                {
                    MicrophoneStr = "-f dshow -i audio=\"" + MicrophoneName + "\" -filter_complex amix=inputs=2:duration=first:dropout_transition=2 ";
                }
            }
            switch (Extension.ToUpper())
            {
                case ".MP4":
                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -framerate 6 -offset_x 0 -offset_y 0 -video_size " + size.Width + "x" + size.Height + " -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;

                case ".AVI":
                case ".FLV":
                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -framerate 6 -offset_x 0 -offset_y 0 -video_size " + size.Width + "x" + size.Height + " -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;

                    break;

                default:
                    myProcess.StartInfo.Arguments = SpeakerStr + MicrophoneStr + " -f gdigrab -framerate 6 -offset_x 0 -offset_y 0 -video_size " + size.Width + "x" + size.Height + " -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.RedirectStandardInput = true;      //用于模拟该进程控制台的输入
            myProcess.ErrorDataReceived += new DataReceivedEventHandler(Output);
            try
            {
                myProcess.Start();
                myProcess.BeginErrorReadLine();
            }
            catch (Exception ex)
            {
                if (ex.Message.Contains("访问"))
                {
                    ErrMessage = "访问被拒绝，请关闭杀毒软件或新任此软件后重试！";
                }
                else
                {
                    ErrMessage = ex.Message + " 请关闭杀毒软件或信任此软件后重试！";
                }
                LogHelper.WriteErrLog("【录音】（StartRecordingAudio）" + ErrMessage, ex);
                myProcess.Dispose();
                myProcess = null;
                return false;
            }
            return true;
        }

        /// <summary>
        /// 录制音频
        /// </summary>
        /// <param name="Mp3Path">MP3音频位置</param>
        /// <param name="ErrMessage">错误信息</param>
        /// <param name="RecordingSound">录制音频</param>
        /// <param name="RecordingMicrophone">录制麦克风</param>
        /// <param name="MicrophoneName">麦克风名</param>
        public bool StartRecordingAudio(string Mp3Path, out string ErrMessage, bool RecordingSound, bool RecordingMicrophone, string MicrophoneName = null)
        {
            ErrMessage = null;
            while (myProcess != null)
            {
                Thread.Sleep(100);
            }
            //路径
            string Path = FileToolsCommon.GetDirectoryName(Mp3Path);
            //文件保存路径
            string PathName = GetFilePathName(Mp3Path);
            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
            foreach (Process KillProcess in KillProcessArray)
            {
                KillProcess.Kill();
            }
            if (string.IsNullOrWhiteSpace(MicrophoneName))
            {
                MicrophoneName = GetMicrophoneName();
            }

            #region 检测麦克风扬声器

            string AudioPath = FileToolsCommon.GetFileAbsolutePath("/temp/audio/");
            FileToolsCommon.CreateDirectory(AudioPath);
            string audioSpeakerPath = AudioPath + "adoS" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".m";
            string audioMicrophonePath = AudioPath + "adoM" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".m";
            try
            {
                FileToolsCommon.DeleteFile(audioSpeakerPath);
                FileToolsCommon.DeleteFile(audioMicrophonePath);
            }
            catch (Exception)
            {
            }
            if (RecordingSound)
            {
                if (StartRecordSpeakerAudio(audioSpeakerPath))
                {
                    IsRecordSpeaker = true;
                }
                else
                {
                    //无法录制扬声器音频
                    IsRecordSpeaker = false;
                }
                StopRecordAudio(2);
                Thread.Sleep(100);
                if (!IsRecordSpeaker)
                {
                    ErrMessage = "无法录制声音，请关闭杀毒软件，确保扬声器处于可用状态!";
                    //return false;
                }
            }
            if (RecordingMicrophone)
            {
                if (StartRecordAudio(audioMicrophonePath))
                {
                    IsRecordMicrophone = true;
                }
                else
                {
                    //无法录制麦克风
                    IsRecordMicrophone = false;
                }
                StopRecordAudio(1);
                if (!IsRecordMicrophone)
                {
                    ErrMessage = "无法录制麦克风，请关闭杀毒软件，确保麦克风处于可用状态!";
                    //return false;
                }
            }

            #endregion 检测麦克风扬声器

            myProcess = new Process();
            LogPath = CreateffmpegLog();
            myProcess.StartInfo.FileName = ffmpegPath;   //ffmpeg.exe的绝对路径
            if (IsRecordSpeaker && IsRecordMicrophone && RecordingSound && RecordingMicrophone)
            {
                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 && RecordingSound)
            {
                myProcess.StartInfo.Arguments = "-f dshow -i audio=\"virtual-audio-capturer\" " + PathName;
            }
            else if (IsRecordMicrophone && RecordingMicrophone)
            {
                //录制麦克风
                if (!string.IsNullOrWhiteSpace(MicrophoneName))
                {
                    myProcess.StartInfo.Arguments = "-f dshow -i audio=\"" +
                        MicrophoneName + "\" -filter_complex amix=inputs=2:duration=first:dropout_transition=2 " + PathName;
                }
            }
            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
            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);
            try
            {
                myProcess.Start();                //启动线程
                myProcess.BeginErrorReadLine();   //开始异步读取
            }
            catch (Exception ex)
            {
                if (ex.Message.Contains("访问"))
                {
                    ErrMessage = "无法录制声音，访问被拒绝，请关闭杀毒软件或信任此软件后重试！";
                }
                else
                {
                    ErrMessage = ex.Message + " 请关闭杀毒软件或信任此软件后重试！";
                }
                LogHelper.WriteErrLog("【录音】（StartRecordingAudio）" + ErrMessage, ex);
                myProcess.Dispose();
                myProcess = null;
                return false;
            }
            return true;
        }

        /// <summary>
        /// 暂停录制
        /// </summary>
        public bool SuspendFFmpeg()
        {
            if (myProcess != null)
            {
                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();//关闭进程
                myProcess.Dispose();//释放资源
            }

            #region 进程是否已经释放

            bool IsRunning = true;
            while (IsRunning)
            {
                IsRunning = false;
                Process[] ProcessArray = Process.GetProcessesByName("ffmpeg");
                foreach (Process KillProcess in ProcessArray)
                {
                    IsRunning = true;
                    Thread.Sleep(100);
                }
            }

            #endregion 进程是否已经释放

            myProcess = null;
            return true;
            //myProcess.Kill();
        }

        /// <summary>
        /// 停止录制并合成文件
        /// </summary>
        /// <param name="FilePath">文件存储路径 必须与开始时的路径完全一致</param>
        public bool StopFFmpeg(string FilePath)
        {
            try
            {
                //文件完整路径
                if (myProcess != null)
                {
                    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();//关闭进程
                    myProcess.Dispose();//释放资源
                }
            }
            catch (Exception)
            {
                myProcess = null;
            }

            #region 进程是否已经释放

            bool IsRunning = true;
            while (IsRunning)
            {
                IsRunning = false;
                Process[] ProcessArray = Process.GetProcessesByName("ffmpeg");
                foreach (Process KillProcess in ProcessArray)
                {
                    IsRunning = true;
                    Thread.Sleep(100);
                }
            }

            #endregion 进程是否已经释放

            try
            {
                myProcess = null;
                Thread t1 = new Thread(MergeVideoOrAudio);
                t1.Start(FilePath);
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【合成文件】：" + FilePath + "合成失败," + ex.Message, ex);
                return false;
            }
            //文件合成
        }

        /// <summary>
        /// 图片音频合成视频
        /// </summary>
        /// <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>
        /// <param name="VideoWidth">视频宽度</param>
        /// <param name="VideoHeight">视频高度</param>
        public bool SynthesisVideo(string ImageListPath, string Mp3Path, string VideoSavePath, int Frequency, int VideoWidth, int VideoHeight, out string ErrMessage)
        {
            while (myProcess != null)
            {
                Thread.Sleep(100);
            }
            ErrMessage = null;
            string Extension = FileToolsCommon.GetIOExtension(VideoSavePath);//扩展名
            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");

            foreach (Process KillProcess in KillProcessArray)
            {
                KillProcess.Kill();
            }
            myProcess = new Process();
            try
            {
                LogPath = CreateffmpegLog();
                string mp3Str = "";

                #region 判断音频是否存在

                if (!string.IsNullOrWhiteSpace(Mp3Path))
                {
                    if (FileToolsCommon.IsExistFile(Mp3Path))
                    {
                        mp3Str = "-i " + Mp3Path;
                    }
                }

                #endregion 判断音频是否存在

                myProcess.StartInfo.FileName = ffmpegPath;   //ffmpeg.exe的绝对路径
                switch (Extension.ToUpper())
                {
                    case ".MP4":
                        myProcess.StartInfo.Arguments = @"-y -r " + Frequency + " -i " +
                            ImageListPath + @"%d.png " +
                            mp3Str + @" -s " + VideoWidth + "x" + VideoHeight + " -vcodec mpeg4 " +
                            VideoSavePath;
                        break;

                    case ".AVI":
                        myProcess.StartInfo.Arguments = @"-y -r " + Frequency + " -i " +
                            ImageListPath + @"%d.png " +
                            mp3Str + @" -s " + VideoWidth + "x" + VideoHeight + " -f AVI " +
                            VideoSavePath;
                        break;

                    case ".FLV":
                        myProcess.StartInfo.Arguments = @"-y -r " + Frequency + " -i " +
                            ImageListPath + @"%d.png " +
                            mp3Str + @" -s " + VideoWidth + "x" + VideoHeight + " -f FLV " +
                            VideoSavePath;
                        break;

                    default:
                        myProcess.StartInfo.Arguments = @"-y -r " + Frequency + " -i " +
                            ImageListPath + @"%d.png " +
                            mp3Str + @" -s " + VideoWidth + "x" + VideoHeight + " -vcodec mpeg4 " +
                            VideoSavePath;
                        break;
                }
                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
                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);
                try
                {
                    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
                }
                catch (Exception ex)
                {
                    if (ex.Message.Contains("访问"))
                    {
                        ErrMessage = "访问被拒绝，请关闭杀毒软件或新任此软件后重试！";
                    }
                    else
                    {
                        ErrMessage = ex.Message + " 请关闭杀毒软件或信任此软件后重试！";
                    }
                    LogHelper.WriteErrLog("【录音】（StartRecordingAudio）" + ErrMessage, ex);
                    myProcess.Dispose();
                    myProcess = null;
                    return false;
                }
                myProcess.Dispose();               //释放资源

                #region 进程是否已经释放

                bool IsRunning = true;
                while (IsRunning)
                {
                    IsRunning = false;
                    Process[] ProcessArray = Process.GetProcessesByName("ffmpeg");
                    foreach (Process KillProcess in ProcessArray)
                    {
                        IsRunning = true;
                        Thread.Sleep(100);
                    }
                }

                #endregion 进程是否已经释放

                myProcess = null;
                //生成视频后删除图片和音频保存列表
                //FileToolsCommon.DeleteDirectory(ImageListPath);
                //FileToolsCommon.DeleteDirectory(FileToolsCommon.GetDirectoryName(Mp3Path));

                Thread.Sleep(100);
                FileToolsCommon.DeleteDirectory(FileToolsCommon.GetDirectoryName(VideoSavePath) + "temp");
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【视频合成】（SynthesisVideo）视频生成失败，" + ex.Message, ex);
                ErrMessage = ex.Message;
                return false;
            }
            //Dispatcher.Invoke(() =>
            //{
            //});
            //// 允许不同线程间的调用
            //Control.CheckForIllegalCrossThreadCalls = false;
        }

        /// <summary>
        /// 视频音频合成
        /// </summary>
        /// <param name="FilePath">存储路径</param>
        public void MergeVideoOrAudio(object FilePathobj)
        {
            while (myProcess != null)
            {
                Thread.Sleep(100);
            }
            //路径
            string FilePath = (string)FilePathobj;
            string Path = FileToolsCommon.GetDirectoryName(FilePath);
            //扩展名
            string Extension = FileToolsCommon.GetIOExtension(FilePath);
            //Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
            //foreach (var KillProcess in KillProcessArray)
            //{
            //    KillProcess.Kill();
            //}

            #region 判断文件是否存在

            if (Extension.ToUpper() == ".MP3")
            {
                if (!FileToolsCommon.IsExistFile(Path + "temp/filelist.d"))
                {
                    return;
                }
            }
            else
            {
                if (!FileToolsCommon.IsExistFile(Path + "_temppath/filelist.d"))
                {
                    return;
                }
            }

            #endregion 判断文件是否存在

            myProcess = new Process();
            LogPath = CreateffmpegLog();
            myProcess.StartInfo.FileName = ffmpegPath;   //ffmpeg.exe的绝对路径
            if (Extension.ToUpper() == ".MP3")
            {
                myProcess.StartInfo.Arguments = "-f concat  -safe 0 -i " + Path + "temp/filelist.d -c copy " + FilePath;
            }
            else
            {
                myProcess.StartInfo.Arguments = "-f concat  -safe 0 -i " + Path + "_temppath/filelist.d -c copy " + FilePath;
            }
            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
            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

            #region 进程是否已经释放

            bool IsRunning = true;
            while (IsRunning)
            {
                IsRunning = false;
                Process[] ProcessArray = Process.GetProcessesByName("ffmpeg");
                foreach (Process KillProcess in ProcessArray)
                {
                    IsRunning = true;
                    Thread.Sleep(100);
                }
            }

            #endregion 进程是否已经释放

            myProcess = null;
            if (Extension.ToUpper() == ".MP3")
            {
                FileToolsCommon.DeleteDirectory(Path + "temp/");
            }
            else
            {
                FileToolsCommon.DeleteDirectory(Path + "_temppath/");
            }
        }

        /// <summary>
        /// 视频剪辑
        /// </summary>
        /// <param name="VideoFilePath">视频路径</param>
        /// <param name="StartTime">开始时间 格式 HH:mm:ss</param>
        /// <param name="EndTime">结束时间 格式 HH:mm:ss</param>
        /// <param name="SaveFilePath">保存文件路径</param>
        public void ClipVideo(string VideoFilePath, string StartTime, string EndTime, string SaveFilePath)
        {
            while (myProcess != null)
            {
                Thread.Sleep(100);
            }

            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
            foreach (var KillProcess in KillProcessArray)
            {
                KillProcess.Kill();
            }
            myProcess = new Process();
            LogPath = CreateffmpegLog();
            this.myProcess.StartInfo.FileName = ffmpegPath;   //ffmpeg.exe的绝对路径
            //ffmpeg -ss 开始时间 -to 结束时间 -accurate_seek -i mp4输入路径 -c:v libx264 -c:a aac -strict experimental -vf scale = 宽:高 -b 500k 输出路径.mp4
            myProcess.StartInfo.Arguments = "-i " + VideoFilePath + " -vcodec copy -acodec copy -ss " + StartTime + " -to " + EndTime + " " + SaveFilePath; //-filter:a "volume=0.5"
            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

            #region 进程是否已经释放

            bool IsRunning = true;
            while (IsRunning)
            {
                IsRunning = false;
                Process[] ProcessArray = Process.GetProcessesByName("ffmpeg");
                foreach (var KillProcess in ProcessArray)
                {
                    IsRunning = true;
                    Thread.Sleep(100);
                }
            }

            #endregion 进程是否已经释放

            myProcess = null;
        }

        /// <summary>
        /// 获取文件完整路径 音频
        /// </summary>
        /// <param name="FilePath">文件路径</param>
        /// <returns></returns>
        private string GetFilePathName(string FilePath)
        {
            //路径
            string Path = FileToolsCommon.GetDirectoryName(FilePath);
            //Path.GetFileName(FilePath);//获取文件名
            string Extension = FileToolsCommon.GetIOExtension(FilePath);//扩展名
            string tempFilePath = Path + "temp/";
            //创建临时目录
            FileToolsCommon.CreateDirectory(tempFilePath);
            //创建记录文件
            if (!FileToolsCommon.IsExistFile(tempFilePath + "filelist.d"))
            {
                FileToolsCommon.CreateFile(tempFilePath + "filelist.d");
            }
            int num = 1;
            string CompleteFilePath = tempFilePath + num + Extension;
            while (FileToolsCommon.IsExistFile(CompleteFilePath))
            {
                num++;
                CompleteFilePath = tempFilePath + num + Extension;
            }
            FileToolsCommon.AppendText(tempFilePath + "filelist.d", "file ./" + num + Extension + "\r\n");
            return CompleteFilePath;
        }

        /// <summary>
        /// 获取文件完整路径 录屏
        /// </summary>
        /// <param name="FilePath">文件路径</param>
        /// <returns></returns>
        private string GetRSFilePathName(string FilePath)
        {
            //路径
            string Path = FileToolsCommon.GetDirectoryName(FilePath);
            //Path.GetFileName(FilePath);//获取文件名
            string Extension = FileToolsCommon.GetIOExtension(FilePath);//扩展名
            string tempFilePath = Path + "_temppath/";
            //创建临时目录
            FileToolsCommon.CreateDirectory(tempFilePath);
            //创建记录文件
            if (!FileToolsCommon.IsExistFile(tempFilePath + "filelist.d"))
            {
                FileToolsCommon.CreateFile(tempFilePath + "filelist.d");
            }
            int num = 1;
            string CompleteFilePath = tempFilePath + num + Extension;
            while (FileToolsCommon.IsExistFile(CompleteFilePath))
            {
                num++;
                CompleteFilePath = tempFilePath + num + Extension;
            }
            FileToolsCommon.AppendText(tempFilePath + "filelist.d", "file ./" + num + Extension + "\r\n");
            return CompleteFilePath;
        }

        /// <summary>
        /// 生成缩略图
        /// </summary>
        /// <param name="VideoPath">视频地址</param>
        /// <param name="ImagePath">图片地址</param>
        /// <param name="Width">图片大小</param>
        /// <param name="Height">图片大小</param>
        public bool GenerateThumbnails(string VideoPath, string ImagePath, int Width = 0, int Height = 0)
        {
            while (myProcess != null)
            {
                Thread.Sleep(100);
            }
            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
            foreach (Process KillProcess in KillProcessArray)
            {
                KillProcess.Kill();
            }
            string WHStr = "";
            if (Width > 0)
            {
                WHStr = " -s " + Width + "x" + Height;
            }
            try
            {
                myProcess = new Process();
                LogPath = CreateffmpegLog();
                myProcess.StartInfo.FileName = ffmpegPath;   //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" + WHStr + " -f image2 \"" + ImagePath + "\"";

                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
                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

                #region 进程是否已经释放

                bool IsRunning = true;
                while (IsRunning)
                {
                    IsRunning = false;
                    Process[] ProcessArray = Process.GetProcessesByName("ffmpeg");
                    foreach (Process KillProcess in ProcessArray)
                    {
                        IsRunning = true;
                        Thread.Sleep(100);
                    }
                }

                #endregion 进程是否已经释放

                myProcess = null;
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【生成缩略图】（GenerateThumbnails）缩略图生成失败，" + ex.Message, ex);
                return false;
            }
        }

        /// <summary>
        /// 视频转码
        /// </summary>
        /// <param name="VideoPathName">源视频</param>
        /// <param name="VideoSavePathName">目标视频存储路径</param>
        /// <param name="Width">宽</param>
        /// <param name="Height">高</param>
        /// <returns></returns>
        public bool VideoTranscode(string VideoPathName, string VideoSavePathName, int Width, int Height)
        {
            while (myProcess != null)
            {
                Thread.Sleep(100);
            }
            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
            foreach (Process KillProcess in KillProcessArray)
            {
                KillProcess.Kill();
            }
            try
            {
                myProcess = new Process();
                LogPath = CreateffmpegLog();
                myProcess.StartInfo.FileName = ffmpegPath;   //ffmpeg.exe的绝对路径
                myProcess.StartInfo.Arguments = "-i " + VideoPathName + " -acodec copy -vcodec libx264 -s " + Width + "*" + Height + " " + VideoSavePathName;

                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
                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

                #region 进程是否已经释放

                bool IsRunning = true;
                while (IsRunning)
                {
                    IsRunning = false;
                    Process[] ProcessArray = Process.GetProcessesByName("ffmpeg");
                    foreach (Process KillProcess in ProcessArray)
                    {
                        IsRunning = true;
                        Thread.Sleep(100);
                    }
                }

                #endregion 进程是否已经释放

                myProcess = null;
                Thread.Sleep(200);
                FileToolsCommon.DeleteFile(VideoPathName);
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【视频转码】（VideoTranscode）视频转码失败，" + ex.Message, ex);
                return false;
            }
        }

        public bool VideoAudioMerge(string VideoPathName, string mp3path, string VideoSavePathName, int Width, int Height)
        {
            while (myProcess != null)
            {
                Thread.Sleep(100);
            }
            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
            foreach (Process KillProcess in KillProcessArray)
            {
                KillProcess.Kill();
            }
            try
            {
                myProcess = new Process();
                LogPath = CreateffmpegLog();
                myProcess.StartInfo.FileName = ffmpegPath;   //ffmpeg.exe的绝对路径

                string ffmpegstr = "-i " + VideoPathName + " -i " + mp3path + " -acodec copy -vcodec libx264 " + "-s " + Width + "*" + Height + " " + VideoSavePathName;
                Console.WriteLine("ffmpegstr:" + ffmpegstr);
                myProcess.StartInfo.Arguments = ffmpegstr;

                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
                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

                #region 进程是否已经释放

                bool IsRunning = true;
                while (IsRunning)
                {
                    IsRunning = false;
                    Process[] ProcessArray = Process.GetProcessesByName("ffmpeg");
                    foreach (Process KillProcess in ProcessArray)
                    {
                        IsRunning = true;
                        Thread.Sleep(100);
                    }
                }

                #endregion 进程是否已经释放

                myProcess = null;
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【视频转码】（VideoTranscode）视频转码失败，" + ex.Message, ex);
                return false;
            }
        }

        /// <summary>
        /// 创建日志文件
        /// </summary>
        /// <returns></returns>
        private 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, "【" + 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

        #region 获取麦克风

        private bool IsMicrophone = false;

        /// <summary>
        /// 使用FFmpeg获取的麦克风名
        /// </summary>
        private string MicrophoneNameInfo = "";

        /// <summary>
        /// 获取麦克风名称
        /// </summary>
        /// <returns></returns>
        public string GetMicrophoneName()
        {
            return GetAudioInDevices();
            //string FullName = GetInDeviceFull();
            //if(string.IsNullOrWhiteSpace(MicrophoneNameInfo))
            //{
            //    return FullName;
            //}
            ////byte[] bufferASCII = Encoding.Default.GetBytes(MicrophoneNameInfo);
            ////string str = Encoding.UTF8.GetString(bufferASCII);
            ////str = str.Replace("?", " ");
            ////int num = str.Length;
            ////int num1 = FullName.Length;
            //if (FullName.Contains("(") || FullName.Contains("（"))
            //{
            //    string EName = FullName.Substring(FullName.IndexOf("(")+1);
            //    if(string.IsNullOrEmpty(EName))
            //    {
            //        EName = FullName.Substring(FullName.IndexOf("（") + 1);
            //        EName = EName.Substring(0, EName.LastIndexOf("）"));
            //    }
            //    else
            //    {
            //        //EName = EName.Substring(0, EName.LastIndexOf(")"));
            //    }
            //    if(MicrophoneNameInfo.Contains(EName))
            //    {
            //        return FullName;
            //    }
            //    else
            //    {
            //        return GetInDeviceName();
            //    }
            //}
            //else
            //{
            //    return FullName;
            //}
        }

        /// <summary>
        /// 获取麦克风列表
        /// </summary>
        /// <returns></returns>
        public List<string> GetMicrophoneNameList()
        {
            return GetAudioInDevicesList();
        }

        /// <summary>
        /// 使用FFmpeg获取设备名称--待定
        /// </summary>
        public void GetMToFFmpeg()
        {
            //return;
            new Thread(new ThreadStart(new Action(() =>
            {
                try
                {
                    while (myProcess != null)
                    {
                        Thread.Sleep(100);
                    }
                    myProcess = new Process();
                    LogPath = CreateffmpegLog();
                    myProcess.StartInfo.FileName = ffmpegPath;   //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)
                {
                    LogHelper.WriteErrLog("【获取设备信息】（GetMToFFmpeg）信息获取失败：" + ex.Message, ex);
                }
            }))).Start();
        }

        /// <summary>
        /// 使用FFmpeg获取设备名称--待定
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void GetDevInfoData(object sender, DataReceivedEventArgs e)
        {
            if (!string.IsNullOrEmpty(e.Data))
            {
                if (IsMicrophone)
                {
                    try
                    {
                        MicrophoneNameInfo = e.Data;
                        MicrophoneNameInfo = MicrophoneNameInfo.Substring(MicrophoneNameInfo.IndexOf("]") + 1);
                        MicrophoneNameInfo = MicrophoneNameInfo.Replace("\"", "");
                        MicrophoneNameInfo = MicrophoneNameInfo.Trim();

                        #region 测试

                        //byte[] bufferASCII = Encoding.Default.GetBytes(MicrophoneNameInfo);
                        //MicrophoneNameInfo = Encoding.UTF8.GetString(bufferASCII); // 统一使用UTF-8
                        ////System.Text.Encoding GB2312 = System.Text.Encoding.GetEncoding("GB2312");
                        ////byte[] gb = GB2312.GetBytes(MicrophoneNameInfo);
                        ////MicrophoneNameInfo = Encoding.UTF8.GetString(gb);

                        #endregion 测试

                        IsMicrophone = false;
                        FileToolsCommon.AppendText(LogPath, e.Data);
                        //FileToolsCommon.AppendText(LogPath, "\r\n***************************************************\r\n");
                    }
                    catch (Exception ex)
                    {
                        LogHelper.WriteErrLog("【获取设备信息】（GetDevInfoData）信息获取失败：" + ex.Message, ex);
                    }
                }
                else
                {
                    if (e.Data.Contains("DirectShow audio devices"))
                    {
                        //FileToolsCommon.AppendText(LogPath, "\r\n***************************************************\r\n");
                        IsMicrophone = true;
                    }
                    FileToolsCommon.AppendText(LogPath, e.Data);
                    FileToolsCommon.AppendText(LogPath, "\r\n");
                }
            }
        }

        /// <summary>
        /// AForge获取麦克风
        /// </summary>
        /// <returns></returns>
        public static string GetAudioInDevices()
        {
            List<string> devicesList = new List<string>();
            try
            {
                FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.AudioInputDevice);
                foreach (FilterInfo device in videoDevices)
                {
                    devicesList.Add(device.Name);
                }
            }
            catch (ApplicationException)
            {
                //Console.WriteLine("No local capture devices");
            }

            if (devicesList.Count > 1)
            {
                return devicesList[1];
            }
            else
            {
                return "";
            }
        }

        /// <summary>
        /// AForge获取麦克风列表
        /// </summary>
        /// <returns></returns>
        public static List<string> GetAudioInDevicesList()
        {
            List<string> devicesList = new List<string>();
            try
            {
                FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.AudioInputDevice);
                foreach (FilterInfo device in videoDevices)
                {
                    if (device.Name == "virtual-audio-capturer")
                    {
                        continue;
                    }
                    devicesList.Add(device.Name);
                }
            }
            catch (ApplicationException)
            {
                //Console.WriteLine("No local capture devices");
            }
            return devicesList;
        }

        /// <summary>
        /// 获取声音输入设备名称 不完整
        /// </summary>
        /// <returns></returns>
        public static string GetInDeviceName()
        {
            List<WaveInCapabilities> devices = new List<WaveInCapabilities>();
            int waveInDevices = WaveIn.DeviceCount;
            for (int i = 0; i < waveInDevices; i++)
            {
                devices.Add(WaveIn.GetCapabilities(i));
            }
            List<string> devs = new List<string>();
            devs = devices.Select(item => item.ProductName).ToList();

            if (devs.Count > 0)
            {
                byte[] buffer = Encoding.UTF8.GetBytes(devs[0]);
                string MicrophoneName = Encoding.UTF8.GetString(buffer); // 统一使用UTF-8
                return MicrophoneName;
            }
            else
            {
                return "";
            }
        }

        /// <summary>
        /// 获取声音输入设备完整名称
        /// </summary>
        /// <returns></returns>
        public static string GetInDeviceFull()
        {
            List<string> devices = new List<string>();
            MMDeviceEnumerator enumberator = new MMDeviceEnumerator();
            MMDeviceCollection deviceCollection = enumberator.EnumerateAudioEndPoints(DataFlow.Capture, DeviceState.All);
            for (int waveInDevice = 0; waveInDevice < WaveIn.DeviceCount; waveInDevice++)
            {
                WaveInCapabilities deviceInfo = WaveIn.GetCapabilities(waveInDevice);
                foreach (MMDevice device in deviceCollection)
                {
                    try
                    {
                        if (device.FriendlyName.StartsWith(deviceInfo.ProductName))
                        {
                            devices.Add(device.FriendlyName);
                            break;
                        }
                    }
                    catch (Exception)
                    {
                        continue;
                    }
                }
            }
            if (devices.Count > 0)
            {
                byte[] buffer = Encoding.UTF8.GetBytes(devices[0]);
                string MicrophoneName = Encoding.UTF8.GetString(buffer); // 统一使用UTF-8
                return MicrophoneName;
            }
            else
            {
                return "";
            }
        }

        /// <summary>
        /// 获取声音输入设备完整名称列表
        /// </summary>
        /// <returns></returns>
        public List<string> GetInDeviceListFull()
        {
            List<string> devices = new List<string>();
            MMDeviceEnumerator enumberator = new MMDeviceEnumerator();
            MMDeviceCollection deviceCollection = enumberator.EnumerateAudioEndPoints(DataFlow.Capture, DeviceState.All);
            for (int waveInDevice = 0; waveInDevice < WaveIn.DeviceCount; waveInDevice++)
            {
                WaveInCapabilities deviceInfo = WaveIn.GetCapabilities(waveInDevice);
                foreach (MMDevice device in deviceCollection)
                {
                    try
                    {
                        if (device.FriendlyName.StartsWith(deviceInfo.ProductName))
                        {
                            devices.Add(device.FriendlyName);
                            break;
                        }
                    }
                    catch (Exception)
                    {
                        continue;
                    }
                }
            }
            return devices;
        }

        #endregion 获取麦克风

        #region 录音

        /// <summary>
        /// 开始录制麦克风
        /// </summary>
        public bool StartAudio(string audioFile, string DeviceName = "")
        {
            try
            {
                int deviceIndex = 0;
                waveIn = new WaveInEvent();
                List<string> InDeviceList = GetInDeviceListFull();
                if (InDeviceList.Exists(x => DeviceName.Contains(x)))
                {
                    deviceIndex = InDeviceList.FindIndex(x => DeviceName.Contains(x));
                }
                waveIn.DeviceNumber = deviceIndex;
                //waveIn.DeviceNumber = 1;
                //生成音频文件的对象
                WaveFileWriter writer = new WaveFileWriter(audioFile, waveIn.WaveFormat);
                //开始录音，写数据
                waveIn.DataAvailable += (s, a) =>
                {
                    writer.Write(a.Buffer, 0, a.BytesRecorded);
                };

                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【麦克风】麦克风不可用:" + ex.Message, ex);
                return false;
            }
        }

        //public bool StopAudio()
        //{
        //    try
        //    {
        //        //结束录音
        //        waveIn.RecordingStopped += (s, a) =>
        //        {
        //            writer.Dispose();
        //            writer = null;
        //            waveIn.Dispose();
        //            waveIn = null;
        //            try
        //            {
        //                FileToolsCommon.DeleteFile(audioFile);
        //            }
        //            catch (Exception)
        //            {
        //            }
        //        };
        //        waveIn.StartRecording();
        //    }
        //    catch (Exception ex)
        //    {
        //        throw;
        //    }
        //}

        #endregion 录音

        #region 检测是否可用

        /// <summary>
        /// 录制麦克风的声音
        /// </summary>
        private WaveInEvent waveIn = null; //new WaveInEvent();

        /// <summary>
        /// 开始录制麦克风
        /// </summary>
        public bool StartRecordAudio(string audioFile, string DeviceName = "", bool IsStopDelFile = true)
        {
            try
            {
                int deviceIndex = 0;
                waveIn = new WaveInEvent();
                List<string> InDeviceList = GetInDeviceListFull();
                if (InDeviceList.Exists(x => DeviceName.Contains(x)))
                {
                    deviceIndex = InDeviceList.FindIndex(x => DeviceName.Contains(x));
                }
                waveIn.DeviceNumber = deviceIndex;
                //waveIn.DeviceNumber = 1;
                //生成音频文件的对象
                WaveFileWriter writer = new WaveFileWriter(audioFile, waveIn.WaveFormat);
                //开始录音，写数据
                waveIn.DataAvailable += (s, a) =>
                {
                    writer.Write(a.Buffer, 0, a.BytesRecorded);
                    short s1 = BitConverter.ToInt16(a.Buffer, 0);//这样采样比较少，反正是int16型的
                    int s2 = Math.Abs(s1 / 50);
                    Console.WriteLine("声音大小:" + s2);
                };

                //结束录音
                waveIn.RecordingStopped += (s, a) =>
                {
                    writer.Dispose();
                    writer = null;
                    waveIn.Dispose();
                    waveIn = null;
                    try
                    {
                        if (IsStopDelFile)
                        {
                            FileToolsCommon.DeleteFile(audioFile);
                        }
                    }
                    catch (Exception)
                    {
                    }
                };
                waveIn.StartRecording();
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【麦克风】麦克风不可用:" + ex.Message, ex);
                return false;
            }
        }

        /// <summary>
        /// 结束录制音频
        /// </summary>
        /// <param name="type">1麦克风 2扬声器</param>
        public void StopRecordAudio(int type)
        {
            try
            {
                if (type == 1)
                {
                    if (waveIn != null)
                    {
                        try
                        {
                            waveIn.StopRecording();
                        }
                        catch (Exception)
                        {
                            waveIn = null;
                        }
                    }
                }
                else if (type == 2)
                {
                    if (capture != null)
                    {
                        try
                        {
                            capture.StopRecording();
                        }
                        catch (Exception)
                        {
                            capture = null;
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【麦克风】麦克风不可用:" + ex.Message, ex);
            }
        }

        /// <summary>
        /// 录制扬声器的声音
        /// </summary>
        private WasapiLoopbackCapture capture = null; //new WasapiLoopbackCapture();

        /// <summary>
        /// 开始录制扬声器
        /// </summary>
        public bool StartRecordSpeakerAudio(string audioFile)
        {
            try
            {
                capture = new WasapiLoopbackCapture();
                //生成音频文件的对象
                WaveFileWriter writer = new WaveFileWriter(audioFile, capture.WaveFormat);
                capture.DataAvailable += (s, a) =>
                {
                    writer.Write(a.Buffer, 0, a.BytesRecorded);
                };
                //结束录音
                capture.RecordingStopped += (s, a) =>
                {
                    writer.Dispose();
                    writer = null;
                    capture.Dispose();
                    capture = null;
                    try
                    {
                        FileToolsCommon.DeleteFile(audioFile);
                    }
                    catch (Exception)
                    {
                    }
                };
                capture.StartRecording();
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteErrLog("【扬声器】扬声器不可用:" + ex.Message, ex);
                return false;
            }
        }

        #endregion 检测是否可用

        #endregion 麦克风声卡检测
    }
}