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• Interact with ffmpeg from a .NET program ?

  18 septembre 2011, par Shimmy

  I'm trying to create a .NET wrapper for media-file conversion using ffmepg, here is what I've tried :

  static void Main(string[] args)
  
  {
  
    if (File.Exists("sample.mp3")) File.Delete("sample.mp3");
  
  
  
    string result;
  
  
  
    using (Process p = new Process())
  
    {
  
      p.StartInfo.FileName = "ffmpeg";
  
      p.StartInfo.Arguments = "-i sample.wma sample.mp3";
  
  
  
      p.StartInfo.UseShellExecute = false;
  
      p.StartInfo.RedirectStandardOutput = true;
  
  
  
      p.Start();
  
  
  
      //result is assigned with an empty string!
  
      result = p.StandardOutput.ReadToEnd();
  
  
  
      p.WaitForExit();
  
    }
  
  }

  What actually happens is the content of the ffmpeg program is printed out to the Console app, but the result variable is an empty string. I want to control the conversion progress interactively, so the user doesn't even have to know I'm using ffmpeg, but he still knows the conversion progress' details and what percentage etc. the app is up to.

  Basically I would also be happy with a .NET wrapper for a P/Invoke to conversion function ONLY (I am not interested in a whole external library, unless I can extract the PI function from it).

  Anyone with experience in ffmpeg & .NET ?

  Update
  Please view my further question, how to write input to a running ffmpeg process.

• ASPSMS : a successful integration with Piwik

  3 octobre 2017, par Piwik Core Team — Development

  Have you ever wondered how an integration between a third party company and Piwik is possible ? What are the key factors for a good partnership ? This article describes our recent collaboration with a company for a mobile messaging integration.

  At Piwik, we are always looking for new functionalities to build and improve the work of our community members. ASPSMS, an innovative SMS Gateway & Messaging solutions provider got in contact with us in order to do just this.

  Why did we decide to partner with ASPSMS ?

  • Fast
  • Easy
  • Just works

  Those three words define the collaboration we had with ASPSMS and in the end everyone benefits.

  Stefan, one of our developers who did the integration into Piwik, says “Thanks to an easy to understand API the SMS integration was done in a couple of hours. We got SMS credits upfront for testing which helped a lot.”

  Using the ASPSMS integration, you can receive a daily or weekly SMS message listing the Key Performance Indicators of your website(s).

  ASPSMS is now part of Piwik through the Mobile messaging settings :

  

  As a company, how can I contribute to Piwik ?

  If, like ASPSMS, you are providing great services which can help Piwik final users take better decisions, do not hesitate to contact the Piwik core team.

  You can also start to develop your own, specific plugins, that you can freely publish on the Piwik marketplace.

  About ASPSMS

  VADIAN.NET AG is today one of the leading global providers of SMS solutions with more than 200,000 satisfied business clients. The product ASPSMS was launched in 2001. ASPSMS is a product of VADIAN.NET AG, a Swiss based Internet and Mobile Solutions provider.

  

  Learn more about ASPSMS.

• How to edit video (cut some scenes) without increasing the video's size

  18 février 2016, par 123iamking

  [Introduction]

  I have a video : Input.mp4 - length : 29 min 6 sec - size : 120 MB

  I use Microsoft Movie Maker 2012 (Movie Maker is included in the Windows Essentials 2012 program suite), to cut some boring scenes and keep the cool scenes and I get the video : Output.mp4 - length : 15 min 22 sec - size : 155 MB.

  And it’s take a long time to create the Output.mp4 and the size is ridiculously increased. I can’t use this kind of software anymore, I need to create a new software to serve my purpose.

  [Question]

  Is there anyway with C# .Net to simply cut and merge video without increasing the video’s size and have to be fast ?

  [What I have tried]

  I intend to use ffmpeg to cut the clip and merge the clip and I found something about cut video here , but the console said something about "Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future." - should I still use this ?

  Should I use ffmpeg or there’s better way to do this.