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• How to save .flv file from rtsp camera C#

  22 juillet 2017, par BlackRoot

  I’m trying to save streamed rtsp video from my IP camera using FFmpeg.exe command like this

  ffmpeg -i rtsp://[source_url_full_file_name] -acodec copy -vcodec copy [local_target_file_name].flv

  but it is so hard to manage all process started for each camera so I decided to have an embedded managed thread that do the same thing

  I’ve tried many libraries and codes but still no result.

  any one have a code or links to achieve that using C#

• Save taken snapshot

  8 octobre 2014, par User056

  I have done everything how is in this question. everything is alright except one. I can’t save the taken snapshot. If I’ll follow with debug everything is alright.. what’s wrong ?

   public class FFMPEG
  
  {
  
      Process ffmpeg;
  
      public void exec(string input, string parametri, string output)
  
      {
  
          ffmpeg = new Process();
  
  
  
          ffmpeg.StartInfo.Arguments = " -i " + input + (parametri != null ? " " + parametri : "") + " " + output;
  
          ffmpeg.StartInfo.FileName = HttpContext.Current.Server.MapPath("~/ffmpeg.exe");
  
          ffmpeg.StartInfo.UseShellExecute = false;
  
          ffmpeg.StartInfo.RedirectStandardOutput = true;
  
          ffmpeg.StartInfo.RedirectStandardError = true;
  
          ffmpeg.StartInfo.CreateNoWindow = true;
  
  
  
          ffmpeg.Start();
  
          ffmpeg.WaitForExit();
  
          ffmpeg.Close();
  
      }
  
  
  
      public void GetThumbnail(string video, string jpg, string velicina)
  
      {
  
          if (velicina == null) velicina = "640x480";
  
          exec(video, "-ss 00:00:06 " + velicina, jpg);
  
      }
  
  
  
  }
  
  
  
  
  
  FFMPEG f = new FFMPEG();
  
              f.GetThumbnail(Server.MapPath("~/Uploads/" + unique), Server.MapPath("~/Thumbnails/" + unique.Remove(unique.IndexOf(".")) + ".jpg"), "1200x223");

• Extract jpg images from mp4, crop and save exif

  5 juin 2017, par StevenH

  I am trying to take some dashcam footage, crop it, export 1fps to jpg and then the bit I’m stuck on add exif/file date to match the time & date it would have been taken based on my input video.

  The following command does the crop and export to jpg :

  ffmpeg -i c:\temp\dashcam\vid1.mp4 -vf "crop=2560:1311:0:0, fps=1" c:\temp\dashcam\vid1%03d.jpg

  Can I somehow do this by combining a command with ffprobe.

  Ideally I would also add gpx location data using a matching vid1.gpx but there are plenty of tools to do that bit if I can get jpgs with the correct date and time.

  Any help appreciated, thanks.