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• Live Video Chat for iPhone and HTTP Live Streaming

  2 novembre 2014, par mayuur

  So generally, I want to make an app which has video chat functionality for iPhone. But after many searches, I am still not able to find any successful results. Is there any public or even for that matter, private API available for doing this on iPhone ??? If you have an YES answer, please help me.

  Basically, what I want is to read the streams of the video on both the devices connected for chatting. Thanks a lot in advance and please help me if you can.

  p.s - I have already checked iDoubs but it failed and always shows some unknown problem and for that reason, doesn’t allow me to connect to anyone.

  ALSO : The suggested method I have found is via HTTP Live Streaming. But, in that too, I have multiple doubts.

  1.) I need to find how do I upload my video from iPhone to the HTTP server from where I would be broadcasting ?

  2.) Can you please post something related to setting up the server ? How do I feed the video to the FFMPEG Server ?

  Mainly, I need to find the upload method. I am right now simply sending hex-code in the form of NSDATA to the server and I am stuck there. The main problem is, It is live. How do I handle that ?

  It would be best, if you could help me make the iDoubs work properly.

  Thank you so much for any kind of support !

• ffmpeg.exe freezes

  17 mars 2015, par Ayhan Dorman

  I’m using Asp.Net C# Framework 4 and currently developing a video conversion application. I’m also using ffmpeg to convert from all uploaded formats to flv. I’m first converting uploaded file to mpg and after to flv due to problems I encountered while trying conversion directly to flv from mp4 sometimes. But ffmpeg freezes as soon as it’s done with conversion process to mpg file. When I run task manager and check the processes list, it just stands there using no CPU resource. When I end the ffmpeg process directly from task manager, other process take place which converts from mpg to flv and preview file (jpg) and works smoothly. Due to freezing of first process, the second process cannot start when I try to upload from my web page’s file upload form. I appreciate any response from now. Here is my code :

          string duration = "00:00:00";
  
  
  
          //converting video
  
          Process ffmpeg;
  
          ffmpeg = new Process();
  
  
  
          // convert to mpg 1st
  
          ffmpeg.StartInfo.Arguments = " -i \"" + Server.MapPath("static/user/vid/") + videolink + "\" -f mpeg -b 300k -ac 2 -ab 128k -ar 44K \"" + Server.MapPath("static/user/vid/") + mpglink + "\"";
  
          ffmpeg.StartInfo.FileName = Page.MapPath("bin/ffmpeg.exe");
  
          ffmpeg.StartInfo.CreateNoWindow = true;
  
          ffmpeg.StartInfo.UseShellExecute = false;
  
          ffmpeg.StartInfo.RedirectStandardOutput = true;
  
          ffmpeg.StartInfo.RedirectStandardError = true;
  
          ffmpeg.Start();
  
  
  
          ffmpeg.WaitForExit();
  
          ffmpeg.Close();
  
  
  
  
  
          // mpg 2 flv
  
          ffmpeg = new Process();
  
          ffmpeg.StartInfo.Arguments = " -i \"" + Server.MapPath("static/user/vid/") + mpglink + "\" -f flv -s 624x352 \"" + Server.MapPath("static/user/vid/") + flvlink + "\"";
  
          ffmpeg.StartInfo.FileName = Page.MapPath("bin/ffmpeg.exe");
  
          ffmpeg.StartInfo.CreateNoWindow = true;
  
          ffmpeg.StartInfo.UseShellExecute = false;
  
          ffmpeg.StartInfo.RedirectStandardOutput = true;
  
          ffmpeg.StartInfo.RedirectStandardError = true;
  
          ffmpeg.Start();
  
  
  
          ffmpeg.BeginOutputReadLine();
  
          string error = ffmpeg.StandardError.ReadToEnd();
  
          ffmpeg.WaitForExit();
  
  
  
          try
  
          {
  
              duration = error.Substring(error.IndexOf("Duration: ") + 10, 8);
  
          }
  
          catch
  
          {
  
          }
  
  
  
          if (ffmpeg.ExitCode != 0)
  
          {
  
              ltrUpload.Text = "<div class="\&quot;resultbox-negative\&quot;">Problem occured during upload process. Error code: " + error + "<br />" + "</div>";
  
              return;
  
          }
  
          ffmpeg.Close();
  
  
  
  
  
          // generate preview image
  
          ffmpeg.StartInfo.Arguments = " -i \"" + Server.MapPath("static/user/vid/") + flvlink + "\" -s 624x352 -ss 00:00:03 -an -vframes 1 -f image2 -vcodec mjpeg \"" + Server.MapPath("static/user/vid/") + flvlink.Replace(".flv", ".jpg") + "\"";
  
          ffmpeg.StartInfo.FileName = Page.MapPath("bin/ffmpeg.exe");
  
          ffmpeg.StartInfo.CreateNoWindow = true;
  
          ffmpeg.StartInfo.UseShellExecute = false;
  
          ffmpeg.StartInfo.RedirectStandardOutput = true;
  
          ffmpeg.StartInfo.RedirectStandardError = true;
  
          ffmpeg.Start();
  
          ffmpeg.WaitForExit();
  
          ffmpeg.Close();
  
  
  
          // deleting original file and mpg
  
          FileInfo fi = new FileInfo(Server.MapPath("static/user/vid/") + videolink);
  
          if (fi.Exists) fi.Delete();
  
          fi = new FileInfo(Server.MapPath("static/user/vid/") + mpglink);
  
          if (fi.Exists) fi.Delete();

• video editing using FFMPEG in android project [closed]

  1er mai 2012, par Pankaj Mehra

  Possible Duplicate :
  Use FFMPEG on Android

  i want to create a android app which can merge audio images to form video i am prefering ffmpeg for that ,please guide me how can i use ffmpeg functions and libraries to do so