zhao：添加直播

Common/system/FFMpeg.cs

@@ -22,6 +22,7 @@ namespace Common.system
     /// </summary>
     public class FFMpeg
     {
+        #region 变量
         public Process myProcess = null;
 
         /// <summary>
@@ -42,6 +43,120 @@ namespace Common.system
         /// 是否可以录制麦克风
         /// </summary>
         private bool IsRecordMicrophone = true;
+        #endregion
+
+        #region 直播录屏推流
+        /// <summary>
+        /// 录制屏幕并推流
+        /// </summary>
+        /// <param name="RTMPPath">RTMP流媒体服务器</param>
+        /// <param name="NodeKey">节点和Key</param>
+        /// <param name="size">大小</param>
+        /// <param name="ErrMessage">错误信息返回</param>
+        /// <returns></returns>
+        public bool StartRecordingVideo(string RTMPPath, string NodeKey, Size size, out string ErrMessage)
+        {
+            while (myProcess != null)
+            {
+                Thread.Sleep(100);
+            }
+            ErrMessage = null;
+            string RTMPPathName = "rtmp://" + RTMPPath + "/" + NodeKey;//rtmp://live.xhkjedu.com/live/test
+            Process[] KillProcessArray = Process.GetProcessesByName("ffmpeg");
+            foreach (Process KillProcess in KillProcessArray)
+            {
+                KillProcess.Kill();
+            }
+            myProcess = new Process();
+            LogPath = CreateffmpegLog();
+            string MicrophoneName = null;
+            #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)
+            {
+
+            }
+            if (StartRecordSpeakerAudio(audioSpeakerPath))
+            {
+                IsRecordSpeaker = true;
+            }
+            else
+            {
+                //无法录制扬声器音频
+                IsRecordSpeaker = false;
+            }
+            StopRecordAudio(2);
+            Thread.Sleep(100);
+            if (StartRecordAudio(audioMicrophonePath))
+            {
+                IsRecordMicrophone = true;
+            }
+            else
+            {
+                //无法录制麦克风
+                IsRecordMicrophone = false;
+            }
+            StopRecordAudio(1);
+            #endregion
+            myProcess.StartInfo.FileName = FileToolsCommon.GetFileAbsolutePath(@"/ffmpeg/bin/ffmpeg.exe");   //ffmpeg.exe的绝对路径
+            string SpeakerStr = "";
+            string MicrophoneStr = "";
+            if (IsRecordSpeaker)
+            {
+                SpeakerStr = "-f dshow -i audio=\"virtual-audio-capturer\" ";
+            }
+            if (IsRecordMicrophone)
+            {
+                MicrophoneName = GetMicrophoneName();
+                if (!string.IsNullOrWhiteSpace(MicrophoneName))
+                {
+                    MicrophoneStr = "-f dshow -i audio=\"" + MicrophoneName + "\" -filter_complex amix=inputs=2:duration=first:dropout_transition=2 ";
+                }
+            }
+
+            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 flv " + RTMPPathName;
+
+            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;
+        }
+        #endregion
         /// <summary>
         /// 录制屏幕
         /// </summary>