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• using overlay video filter in ffmpeg guardian project (android)

  29 juillet 2016, par Blaze Tama

  First, im a beginner in FFMPEG so please bear with me.

  Im using this library and successfully combined an audio and a video :D

  However, i keep failing when i tried to insert an image/watermark over a video.

  This is the code im using :

  public MediaDesc combineVideoAndImage (MediaDesc videoIn, MediaDesc image, MediaDesc out, ShellCallback sc) throws Exception
  
      {
  
          ArrayList<string> cmd = new ArrayList<string>();
  
  
  
          cmd.add(ffmpegBin);
  
          cmd.add("-i");
  
          cmd.add(new File(videoIn.path).getCanonicalPath());
  
  
  
          cmd.add("-vf");
  
          cmd.add("movie=" + new File(image.path).getAbsolutePath() + " [logo];[in][logo] overlay=10:10 [out]");
  
  
  
          cmd.add("-strict");
  
          cmd.add("-2");
  
  
  
          File fileOut = new File(out.path);
  
          cmd.add(fileOut.getCanonicalPath());
  
  
  
          execFFMPEG(cmd, sc);
  
  
  
          return out;
  
      }
  
  </string></string>

  Those code will generate this cmd :

  ffmpeg -i VIDEONAME.mp4 -vf "movie=LOGONAME.png [logo];[in][logo] overlay=10:10 [out]"
  
  -strict -2 OUTPUTNAME.MP4

  I have tested this CMD on ubuntu 13.10 64bit, with latest FFMPEG installed and t succeed.

  But it does not in my android project. It does not catch/throw any error/exception, the program running normally and the file is created but has nothing in it (0 byte)

  Any help is appreciated. Thanks for your help :D

• How to hide/disable ffmpeg erros when using OpenCV (python) ?

  29 septembre 2013, par Mehran

  I'm using OpenCV python to capture a video.
  This is my code

  import cv2
  
  
  
  cap = cv2.VideoCapture("vid.mp4")
  
  while True:
  
      flag, frame =  cap.read()
  
  
  
      if not flag:
  
          cv2.imshow('video', frame)
  
  
  
      if cv2.waitKey(10) == 27:
  
          break

  When a frame is not ready it produces an error like this

  

  or

  Truncating packet of size 2916 to 1536
  
  [h264 @ 0x7ffa4180be00] AVC: nal size 2912
  
  [h264 @ 0x7ffa4180be00] AVC: nal size 2912
  
  [h264 @ 0x7ffa4180be00] no frame!
  
  
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ffa41803000] stream 0, offset 0x14565: partial file

  I wanted to find a way to hide this error ! I guess that this error is being produced by ffmpeg. Is there any way to hide or disable it ?

  This error is produced when I call cap.read(). And I also tried to wrap it with try ... except ... but it doesn't work because it doesn't throw any exceptions.

• Discord JS v13 FFmpeg not found on rootserver

  10 avril 2022, par emirate.

  I just installed my DiscordJS Bot on my new rootserver, I copied the files 1:1 to the server and started the Bot. The Bot starts normal but when I try to execute a command where the bot joins a vc and plays audio it says :

  


  throw new Error('FFmpeg/avconv not found!');
      ^


  


  Error : FFmpeg/avconv not found !

  


  Which is weird because I have ffmpeg and ffmpeg-static installed, and the same script works normally on my PC when I run it. Any ideas why ?

  


  Edit :
The only difference between the versions on the PC and the rootserver are the Node.js versions ; PC : 16.6.0, rootserver : 17.4.0 (the rootserver is running on ubunu 11, and my PC on windows 10)