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• using ffmpeg in Azure function to cut files using c#

  22 janvier 2019, par abhishekmoondra1989

  I have written an Azure function in C# which will cut a big mp4 files into some small duration. I have copied everything that is required (ffmpeg executeable, video file) in home directory via KUDU console. But when I run the the function it runs for more than 5 minutes and it doesn’t give any files in the home directory.

  Function :

  using System;
  
  using System.Diagnostics;
  
  
  
  public static void Run(string input, TraceWriter log)
  
  {
  
      log.Info("Executing");
  
      using (var process = new Process())
  
      {
  
          process.StartInfo.FileName = @"D:\home\ffmpeg.exe";
  
          process.StartInfo.Arguments = @"-i D:\home\AmnestyInternational.mp4 -ss 00:00:03 -t 00:00:08 -async 1 D:\home\cut.mp4";
  
          process.StartInfo.UseShellExecute = false;
  
          process.StartInfo.RedirectStandardOutput = true;
  
          process.StartInfo.RedirectStandardError = true;
  
          log.Info(Directory.GetCurrentDirectory());
  
          log.Info("Cutting starts:"+DateTime.Now.ToString("h:mm:ss tt"));
  
          process.Start();
  
          string output = process.StandardOutput.ReadToEnd();
  
          process.WaitForExit();
  
          log.Info("Cutting ends :"+DateTime.Now.ToString("h:mm:ss tt"));
  
          log.Info(output);
  
      }
  
  }

  Output seen on Azure function Console :

  2017-03-24T11:06:00.705 Function started (Id=df082f54-719a-415f-b7f1-b10548a213be)
  
  2017-03-24T11:06:00.721 Executing
  
  2017-03-24T11:06:00.721 D:\Windows\system32
  
  2017-03-24T11:06:00.721 Cutting start :11:06:00 AM
  
  2017-03-24T11:07:14  No new trace in the past 1 min(s).
  
  2017-03-24T11:08:14  No new trace in the past 2 min(s).
  
  2017-03-24T11:09:14  No new trace in the past 3 min(s).
  
  2017-03-24T11:10:14  No new trace in the past 4 min(s).
  
  2017-03-24T11:11:00.758 Microsoft.Azure.WebJobs.Host: Timeout value of 00:05:00 was exceeded by function: Functions.ManualTriggerCSharp1.

  When I try to execute this same command on KUDU console or my own PC it only take 1.5 mins and I get a file of the desired duration

  Could anyone please help me with this ? What I might be missing ?

• using ffmpeg in Azure function to cut files using c#

  24 mars 2017, par abhishekmoondra1989

  I have written an Azure function in C# which will cut a big mp4 files into some small duration. I have copied everything that is required (ffmpeg executeable, video file) in home directory via KUDU console. But when I run the the function it runs for more than 5 minutes and it doesn’t give any files in the home directory.

  Function :

  using System;
  
  using System.Diagnostics;
  
  
  
  public static void Run(string input, TraceWriter log)
  
  {
  
      log.Info("Executing");
  
      using (var process = new Process())
  
      {
  
          process.StartInfo.FileName = @"D:\home\ffmpeg.exe";
  
          process.StartInfo.Arguments = @"-i D:\home\AmnestyInternational.mp4 -ss 00:00:03 -t 00:00:08 -async 1 D:\home\cut.mp4";
  
          process.StartInfo.UseShellExecute = false;
  
          process.StartInfo.RedirectStandardOutput = true;
  
          process.StartInfo.RedirectStandardError = true;
  
          log.Info(Directory.GetCurrentDirectory());
  
          log.Info("Cutting starts:"+DateTime.Now.ToString("h:mm:ss tt"));
  
          process.Start();
  
          string output = process.StandardOutput.ReadToEnd();
  
          process.WaitForExit();
  
          log.Info("Cutting ends :"+DateTime.Now.ToString("h:mm:ss tt"));
  
          log.Info(output);
  
      }
  
  }

  Output seen on Azure function Console :

  2017-03-24T11:06:00.705 Function started (Id=df082f54-719a-415f-b7f1-b10548a213be)
  
  2017-03-24T11:06:00.721 Executing
  
  2017-03-24T11:06:00.721 D:\Windows\system32
  
  2017-03-24T11:06:00.721 Cutting start :11:06:00 AM
  
  2017-03-24T11:07:14  No new trace in the past 1 min(s).
  
  2017-03-24T11:08:14  No new trace in the past 2 min(s).
  
  2017-03-24T11:09:14  No new trace in the past 3 min(s).
  
  2017-03-24T11:10:14  No new trace in the past 4 min(s).
  
  2017-03-24T11:11:00.758 Microsoft.Azure.WebJobs.Host: Timeout value of 00:05:00 was exceeded by function: Functions.ManualTriggerCSharp1.

  When I try to execute this same command on KUDU console or my own PC it only take 1.5 mins and I get a file of the desired duration

  Could anyone please help me with this ? What I might be missing ?

• Why is the external executable I bundled with my azure function not being found at runtime, despite it being present in the expected location ?

  6 septembre 2023, par Cristian Camilo Garcia Barrera

  I have a group of Azure functions that I publish to a functions app. One of these is a blob triggered function, meant to extract thumbnails from videos uploaded to Azure storage, and to do so, uses ffmpeg.exe.

  


  I have published the project via Visual Studio, adding the executable in a directory in the root of the project. The relative path is exe/ffmpeg.exe. To include the executable in the published bundle I followed the instructions in this Microsoft Developer instructional video.

  


  After publication, If I enter the Kudu debug console for this function app, I can find the file under C:\home\site\wwwroot\exe\ffmpeg.exe, as expected. I can even use that absolute path to execute ffmpeg inside the Kudu console.

  


  This is the code I use to call the ffmpeg executable in the blob function :

  


  using (var process = new Process())
{
    process.StartInfo = new ProcessStartInfo
    {
        FileName = @"C:\home\site\wwwroot\exe\ffmpeg.exe",
        Arguments = $"-hide_banner -loglevel error -i {videoTempPath} -frames:v 1 {thumbTempPath}",
        UseShellExecute = false,
        RedirectStandardOutput = true,
        RedirectStandardError = true,
        CreateNoWindow = true
    };

    process.Start();
    await process.WaitForExitAsync();
}


  


  However, this does not work. I get the following error in the logs :

  


  


  An error occurred trying to start process 'C :\home\site\wwwroot\exe\ffmpeg.exe' with working directory 'C :\Program Files (x86)\SiteExtensions\Functions 4.25.2132bit. The system cannot find the file specified.

  


  


  And indeed my thumbnails are never created. How can I solve this, or why does it happen ?