C# WPF FFMpeg 拉流推流录制MP4在C#中使用FFmpeg通过Process启动ffmpeg.exe，使

在C#中使用FFmpeg通过Process启动ffmpeg.exe，使用命令行的方式，进行功能的开发。本案例实现了拉流、推流、录制的功能。可以应用于各种具备RTSP流的监控及摄像机的功能开发。
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下载FFmpeg

下载链接

下载后，将ffmpeg.exe放入项目目录中，我个人把放ffmpeg.exe、ffplay.exe、ffprobe.exe三大工具都放进去了，也可按需。具体三大工具的学习请自行查文档FFmpeg文档
拉流推流

private void btnPush_Click(object sender, RoutedEventArgs e)
        {
            string path = Directory.GetCurrentDirectory() + "\\FFmpeg";
            Process FFMPEG = new Process();
            FFMPEG.StartInfo.FileName = "cmd.exe";
            FFMPEG.StartInfo.CreateNoWindow = true;//在已存在控制台时，此参数无效
            FFMPEG.StartInfo.UseShellExecute = false;
            FFMPEG.StartInfo.RedirectStandardInput = true;
            FFMPEG.StartInfo.RedirectStandardOutput = true;
            FFMPEG.StartInfo.WorkingDirectory = path;
            if (FFMPEG.Start())
            {
                //此为网络摄像头
                if (cmbSource.SelectedIndex == 0)
                {
                    FFMPEG.StandardInput.WriteLine($"ffmpeg -thread_queue_size 1000 -r 30 -i {txbUrl.Text} -vcodec libx264 -acodec copy -preset:v ultrafast -tune:v zerolatency -max_delay 10 -g 50 -sc_threshold 0 -f flv {txbPushUrl.Text}");
                    FFMPEG.StandardInput.Flush();
                }
                //此为屏幕推流
                if (cmbSource.SelectedIndex == 1)
                {
                    FFMPEG.StandardInput.WriteLine($"ffmpeg -thread_queue_size 1000 -r 30 -f gdigrab -i desktop -vcodec libx264 -acodec copy -preset:v ultrafast -tune:v zerolatency -max_delay 10 -g 50 -sc_threshold 0 -f flv {txbPushUrl.Text}");
                    FFMPEG.StandardInput.Flush();
                }
                //此为USB摄像头
                if (cmbSource.SelectedIndex == 2)
                {
                    FFMPEG.StandardInput.WriteLine($"ffmpeg -thread_queue_size 1000 -r 30 -f dshow -i video='Cam' -vcodec libx264 -acodec copy -preset:v ultrafast -tune:v zerolatency -max_delay 10 -g 50 -sc_threshold 0 -f flv {txbPushUrl.Text}");//video=摄像头名称
                    FFMPEG.StandardInput.Flush();
                }
            }
        }

3.录屏

        Process FFMPEG = new Process();
        private void StartRecord()
        {

            string path = Directory.GetCurrentDirectory() + "\\FFmpeg\\ffmpeg.exe";
            string myVideos = Environment.GetFolderPath(Environment.SpecialFolder.MyVideos);
            string cmd = $"-rtsp_transport tcp -i {RTSPUrl} -c copy -f mp4 {myVideos + "\\" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".mp4"} -y";
            FFMPEG.StartInfo.FileName = path;
            FFMPEG.StartInfo.Arguments = cmd;
            FFMPEG.StartInfo.CreateNoWindow = true;
            FFMPEG.StartInfo.UseShellExecute = false;
            FFMPEG.StartInfo.RedirectStandardInput = true;
            //FFMPEG.StartInfo.RedirectStandardOutput = true;
            FFMPEG.StartInfo.WorkingDirectory = Directory.GetCurrentDirectory() + "\\FFmpeg";
            if (FFMPEG.Start())
            {
                IsRecording = true;
                imgSave.Source = new BitmapImage(new Uri("pack://application:,,,/UI/savered.png"));
                btnSave.ToolTip = "录制中...";
            }
        }

        private void StopRecord()
        {
            FFMPEG.StandardInput.WriteLine("q");
            FFMPEG.WaitForExit();
            FFMPEG.Close();
            IsRecording = false;
            imgSave.Source = new BitmapImage(new Uri("pack://application:,,,/UI/save.png"));
            btnSave.ToolTip = "录制";
        }

C# WPF FFMpeg 拉流 推流 录制MP4

C# WPF FFMpeg 拉流推流录制MP4