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• Android how to record my mobile screen in android with out using USB cable ?

  21 juin 2012, par Rajesh

  I am wondering to do the android application which should record my screen activities and should store as the video file .

  1) i need to take the screen shots of my screen movements with the periodic interval and should store in sdcard.

  2) how to create the video from the images which is already available in my sdcard. I have tried with the FFMPEG. but i have few problems dont know how to solve it .. the truth is dont know the program to convert it .

  3 ) is it possible to show the picture in my camera ?? That means if user opens the camera from my app some times i should show the pictures which available in my sdcard .. if its so please advice me .

  Thanks ,
  Rajesh .

• Using ffmpeg to play file on windows, should use directshow to render the decoded frame [on hold]

  22 juillet 2013, par Terry

  I want to write a video file player using ffmpeg(support many format).

  However ffmpeg(/ffplay.exe) using SDL to render the video frame and play the audio sound. I only want to support windows platform. I think the default windows technology/api is more suitalbe for me to render the decoded frame. Do you think so ?

  If so, should I use direct show, or just using direct draw for video frame and direct sound for audio frame.

  If using direct show, I think I need to wrapper a direct show source filter(/splitter), then pass down the decoded video/audio frame data to render filter.

  Please help me which is the best choice ?

• ffmpeg. I correct that to insert the logo [closed]

  13 mai 2012, par user1390921

  private void btnStart_Click(object sender, EventArgs e)
  
   {
  
   this.btnStart.Enabled = false;
  
   this.progressBar1.Value = 0;
  
  
  
   string srcFile = Path.Combine(this.txtSource.Text, this.lstFiles.SelectedItem.ToString());
  
   MessageBox.Show(srcFile);
  
   string dstFile = Path.Combine(this.txtOutput.Text,
  
   Path.GetFileNameWithoutExtension(this.lstFiles.SelectedItem.ToString())) + "." + this.cboOutputFormat.SelectedItem;
  
   MessageBox.Show(dstFile);
  
   string imafile = Path.Combine("movie= "+this.openFileDialog1.SafeFileName);
  
   MessageBox.Show(imafile);
  
  
  
  
  
  
  
              string videoRateOption = string.Empty;
  
   if (this.cboVideoRate.SelectedIndex != 0)
  
   {
  
   videoRateOption = " -b:v " + this.cboVideoRate.SelectedItem.ToString().Split(' ')[0] + "k ";
  
   MessageBox.Show(videoRateOption);
  
   }
  
  
  
   string videoSizeOption = string.Empty;
  
   if (this.lstVideoSize.SelectedIndex != 0)
  
   {
  
   videoSizeOption = " -s " + this.lstVideoSize.SelectedItem.ToString().Split(' ')[0] + " ";
  
   }
  
  
  
  
  
              this.Text = "Converting...";
  
   ThreadPool.QueueUserWorkItem((object state) =>
  
   {
  
   ConvertFile(srcFile, imafile, dstFile, videoRateOption, videoSizeOption);
  
   });
  
   }
  
  
  
  
  
  string strFFMPEGOut;
  
   ProcessStartInfo psiProcInfo = new ProcessStartInfo();
  
   TimeSpan estimatedTime = TimeSpan.MaxValue;
  
  
  
   StreamReader srFFMPEG;
  
  
  
                  string ste = ""movie=watermarklogo.png [wm];[in][wm] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]"";
  
   string strFFMPEGCmd = " -i "" + srcFile + "" -ar 44100 " + videoRateOption + videoSizeOption +"-vf"+ ste + "-y ""
  
   + dstFile + """;
  
  
  
   psiProcInfo.FileName = Application.StartupPath + ((IntPtr.Size == 8) ? "\x64" : "\x86") + "\ffmpeg.exe";
  
   psiProcInfo.Arguments = strFFMPEGCmd;
  
   psiProcInfo.UseShellExecute = false;
  
                  psiProcInfo.WindowStyle = ProcessWindowStyle.Hidden;
  
   psiProcInfo.UseShellExecute = false;
  
   psiProcInfo.RedirectStandardError = true;
  
   psiProcInfo.ErrorDialog = true;
  
   psiProcInfo.RedirectStandardOutput = true;
  
   psiProcInfo.CreateNoWindow = true;
  
  
  
   prcFFMPEG.StartInfo = psiProcInfo;
  
  
  
   prcFFMPEG.Start();

  There is no response that I push the start button that I tried to fix the code that I inserted the logo in the movie with Ffmpeg. Is that be okay if I don't choose the path of logo File. and Is there any something wrong that I did.