Ffmpeg audio and video recording

ffmpeg Video recording ffmpeg,ffplay,ffprobe It is mainly used for audio and video recording, playing and viewing multimedia files . This article will lead you to learn common commands . There are many common parameters , have access to ffprobe --help To view detailed help information

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       #region ffmpeg Video recording  ffmpeg,ffplay,ffprobe It is mainly used for audio and video recording, playing and viewing multimedia files . This article will lead you to learn common commands . There are many common parameters , have access to ffprobe --help To view detailed help information 
       
       
        #region ffmpeg  videotape 
       
       
        Process process = null;
       
       
        private void btnFfmepgStart_Click(object sender, EventArgs e)
       
       
        {
       
       
            #region MyRegion
       
       

       
       
            //System.Diagnostics.Process.Start(@"C:\Users\Administrator\Desktop\Debug\WindowsFormsTestVideo.exe"," Parameters 122");
       
       

       
       
            //Process process1 = new Process();
       
       
            //process1.StartInfo = new ProcessStartInfo(@"C:\Users\Administrator\Desktop\Debug\WindowsFormsTestVideo.exe");
       
       
            //process1.StartInfo.Arguments = " Parameters 12277777777777777";
       
       
            //process1.Start();
       
       
            ////process1.WaitForExit(10000);
       
       
            ////process1.Close();
       
       
            //process1.Dispose(); 
       
       
            #endregion
       
       

       
       
            //ProcessStartInfo StartInfo = new ProcessStartInfo(@"C:\Windows\System32\cmd.exe");
       
       
            process = new Process();
       
       
            process.StartInfo = new ProcessStartInfo(@"C:\Windows\System32\cmd.exe");
       
       
            process.StartInfo.CreateNoWindow = true;
       
       
            process.StartInfo.UseShellExecute = false;
       
       
            process.StartInfo.RedirectStandardInput = true;
       
       
            process.StartInfo.RedirectStandardOutput = true;
       
       
            process.StartInfo.RedirectStandardError = true;
       
       
            //process.StartInfo.WorkingDirectory = @"C:\Windows\System32";// AppDomain.CurrentDomain.BaseDirectory;
       
       
            process.StartInfo.WorkingDirectory = AppDomain.CurrentDomain.BaseDirectory;
       
       
            string a = "ffmpeg -rtbufsize 200M -f dshow  -i video=\"USB Camera\" -f dshow -i audio=\" Microphone array  (Realtek High Definition Audio)\" -pix_fmt yuv420p   -b:v 300k -r 10 -vcodec libx264 -tune zerolatency -acodec aac -b:a 32k -ar 16000 -af volume=10 -y  \"123.mp4\"";
       
       
            string at = @"ffmpeg -rtbufsize 200M -f dshow  -i video=""USB Camera"" -f dshow -i audio="" Microphone array  (Realtek High Definition Audio)"" -pix_fmt yuv420p   -b:v 300k -r 10 -vcodec libx264 -tune zerolatency -acodec aac -b:a 32k -ar 16000 -af volume=10 -y  ""123.mp4""";
       
       
            //Log(a, MessageType.info);
       
       
            //Log(at, MessageType.info);
       
       
            //process.StandardInput.WriteLine(a);
       
       
            process.OutputDataReceived += Process_OutputDataReceived;
       
       
            process.ErrorDataReceived += Process_ErrorDataReceived;
       
       
            //process.StartInfo.Arguments = a;
       
       

       
       
            process.Start();
       
       
            process.BeginErrorReadLine();
       
       
            process.BeginOutputReadLine();
       
       
            a = @"ffmpeg.exe -rtbufsize 200M  -f dshow  -i video=""USB Camera"" -f dshow -i audio="" Microphone array  (Realtek High Definition Audio)"" -pix_fmt yuv420p -tune zerolatency -af volume=5 -y 123.mp4";
       
       
            // There's a lot of noise , Get rid of  -af volume=5, The noise will be much better 
       
       
            //-ac  passageway   channel  1,2;
       
       
            //-ar 8000  Sound sampling rate  psp 24000Hz
       
       
            //-ab  Audio data stream , General choice 32,64,96,128 44100 Set this parameter to reduce the audio noise , But the tone will be a little dull 
       
       
            //-vol The volume   Magnification 
       
       
            a = @"ffmpeg.exe -rtbufsize 200M  -f dshow  -i video=""USB Camera"" -f dshow -i audio="" Microphone array  (Realtek High Definition Audio)"" -pix_fmt yuv420p -tune zerolatency -ac 1 -ar 8000 -ab 44100 -vol 800 -y 123.mp4";
       
       

       
       
            process.StandardInput.WriteLine(a);
       
       
            //process.StandardInput.WriteLine(at/* + Environment.NewLine*/);
       
       
            //process.StandardInput.WriteLine("\r\n");
       
       
            Log(a, MessageType.info);
       
       
            Log(at, MessageType.info);
       
       
            lblffmepg.ForeColor = Color.Green;
       
       
            lblffmepg.Text = " Start recording ";
       
       
        }
       
       

       
       
        private void Process_ErrorDataReceived(object sender, DataReceivedEventArgs e)
       
       
        {
       
       
            Log(e.Data, MessageType.error);
       
       
        }
       
       

       
       
        private void Process_OutputDataReceived(object sender, DataReceivedEventArgs e)
       
       
        {
       
       
            Log(e.Data, MessageType.info);
       
       
        }
       
       

       
       
        private void btnFfmpegStop_Click(object sender, EventArgs e)
       
       
        {
       
       
            string a = "q";
       
       
            process.StandardInput.WriteLine(a);
       
       
            process.StandardInput.WriteLine("exit");
       
       
            process.WaitForExit();
       
       
            process.Close();
       
       
            process.Dispose();
       
       
            Process.Start("123.mp4");
       
       

       
       
            lblffmepg.ForeColor = DefaultForeColor;
       
       

       
       
            lblffmepg.Text = null;
       
       
        }
       
       
        #endregion
       
       

       
       
        #region ffplay  Play 
       
       
        // ffplay -autoexit ww.mp4
       
       
        #endregion
       
       

       
       
        #region ffprobe  Check the information 
       
       
        // ffprobe -show_packets ww.mp4
       
       
        #endregion 
       
       
        #endregion
      
      
      
      

       
       
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Be careful ：ffmpeg Copy the relevant class libraries to the running directory , Download address ​

 

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