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• Why is using ffmpeg to convert MXF files failing ?

  24 mars, par Marinaio

  I have an MXF video

  



  I googled syntax to convert to mov and ran it in Mobaxterm on Win10.

  



  "/drives/c/Program Files (x86)/ffmpeg/bin/ffmpeg.exe" -i Clip0001.MXF -c:v libx264 -c:a aac -ab 384k -sn -strict -2 output.mov


  



  I view it in VideoLan and it looks great.

  



  I load it into Magix Movie Studio 15 and audio is fine, but video is green !

  



  ffmpeg output.mov....shows me :

  



  Stream #0:0(eng): Video: h264 (High 4:2:2) (avc1 / 0x31637661), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], 4530 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)


  



  Even this does not work :

  



  ffmpeg.exe -i Clip0001.MXF output.mov


  



  Any suggestions on converting this ?

  



  Edit1 :

  



  Here is what it looks like in the editor :


  



  Edit2 :
Try this and it works, but quality is terrible.

  



  ffmpeg.exe" -i Clip0001.MXF -c:v mpeg4 -c:a aac -ab 384k -sn -strict -2 output.mov


  


• How to batch process with ffmpeg script, but do each step in a loop instead of two stages

  14 mai 2024, par Matt

  I'm a novice script editor. I convert MOV/AVI video files to MP4 format using a script with ffmpeg and then move the files after processing :

  


  for f in *.mov; do ffmpeg -y -i "$f" "${f%}.mp4"; done

mv -f *.mov /Users/me/Videos/mov
mv -f *.MOV /Users/me/Videos/mov
mv -f *.avi /Users/me/Videos/avi
mv -f *.AVI /Users/me/Videos/avi


  


  


  1. Currently the script converts all videos, then moves them all to the other folders. Please how can the script be adjusted so that each video is moved immediately after processing (instead of waiting until all are complete) ? This would be a great improvement, as sometimes there are a lot of videos and the script gets interrupted for some reason (not a fault of the script). It will make it easier to monitor progress.

     


  


  2. Currently I manually tweak the first line changing *.mov for *.avi Please is there an easy way to handle either video file format/extension, within the same line ?

     


  


  3. Is there a better way of handling the mv statements which have multiple lines for lower/uppercase ? They also give error if there are no files of that type.

     


  


  


  Thank you

  


  The above script is functional but will be better with enhancements or changes.

  


• FFmpeg : complex command for extracting image

  20 juillet 2017, par Tix

  My ffmpeg for my ANDROID APPLICATION on android studio 2.3.3 is compiled using this :

  compile ’com.writingminds:FFmpegAndroid:0.3.2’

  In the code below i have this line of code :

  String[] complexCommand = "-i", yourRealPath, "-c:v", "libx264",
  "-crf", "22", "-map", "0", "-segment_time", "6", "-g", "9",
  "-sc_threshold", "0", "-force_key_frames", "expr:gte(t,n_forced*6)",
  "-f", "segment", dest.getAbsolutePath() ;

  What i want to know :

  1. How do i change that complex command that i have such that i can get the last 15 frames of a 2 seconds-long 30fps video.

  This is the code I’m referencing :

       /**
  
       * Command for extracting images from video
  
       */
  
      private void extractImagesVideo(int startMs, int endMs) {
  
          File moviesDir = Environment.getExternalStoragePublicDirectory(
  
                  Environment.DIRECTORY_PICTURES
  
          );
  
  
  
          String filePrefix = "extract_picture";
  
          String fileExtn = ".jpg";
  
          String yourRealPath = getPath(MainActivity.this, selectedVideoUri);
  
  
  
          File dir = new File(moviesDir, "VideoEditor");
  
          int fileNo = 0;
  
          while (dir.exists()) {
  
              fileNo++;
  
              dir = new File(moviesDir, "VideoEditor" + fileNo);
  
  
  
          }
  
          dir.mkdir();
  
          filePath = dir.getAbsolutePath();
  
          File dest = new File(dir, filePrefix + "%03d" + fileExtn);
  
  
  
  
  
          Log.d(TAG, "startTrim: src: " + yourRealPath);
  
          Log.d(TAG, "startTrim: dest: " + dest.getAbsolutePath());
  
  
  
          String[] complexCommand = {"-y", "-i", yourRealPath, "-an", "-r", "1/2", "-ss", "" + startMs / 1000, "-t", "" + (endMs - startMs) / 1000, dest.getAbsolutePath()};
  
  
  
          execFFmpegBinary(complexCommand);
  
  
  
      }
  
  
  
   /**
  
       * Executing ffmpeg binary
  
       */
  
      private void execFFmpegBinary(final String[] command) {
  
          try {
  
              ffmpeg.execute(command, new ExecuteBinaryResponseHandler() {
  
                  @Override
  
                  public void onFailure(String s) {
  
                      Log.d(TAG, "FAILED with output : " + s);
  
                  }
  
  
  
                  @Override
  
                  public void onSuccess(String s) {
  
                      Log.d(TAG, "SUCCESS with output : " + s);
  
                      if (choice == 1 || choice == 2 || choice == 5 || choice == 6 || choice == 7) {
  
                          Intent intent = new Intent(MainActivity.this, PreviewActivity.class);
  
                          intent.putExtra(FILEPATH, filePath);
  
                          startActivity(intent);
  
                      } else if (choice == 3) {
  
                          Intent intent = new Intent(MainActivity.this, PreviewImageActivity.class);
  
                          intent.putExtra(FILEPATH, filePath);
  
                          startActivity(intent);
  
                      } else if (choice == 4) {
  
                          Intent intent = new Intent(MainActivity.this, AudioPreviewActivity.class);
  
                          intent.putExtra(FILEPATH, filePath);
  
                          startActivity(intent);
  
                      } else if (choice == 8) {
  
                          choice = 9;
  
                          reverseVideoCommand();
  
                      } else if (Arrays.equals(command, lastReverseCommand)) {
  
                          choice = 10;
  
                          concatVideoCommand();
  
                      } else if (choice == 10) {
  
                          File moviesDir = Environment.getExternalStoragePublicDirectory(
  
                                  Environment.DIRECTORY_MOVIES
  
                          );
  
                          File destDir = new File(moviesDir, ".VideoPartsReverse");
  
                          File dir = new File(moviesDir, ".VideoSplit");
  
                          if (dir.exists())
  
                              deleteDir(dir);
  
                          if (destDir.exists())
  
                              deleteDir(destDir);
  
                          choice = 11;
  
                          Intent intent = new Intent(MainActivity.this, PreviewActivity.class);
  
                          intent.putExtra(FILEPATH, filePath);
  
                          startActivity(intent);
  
                      }
  
                  }

  Code downloaded from :

  https://github.com/bhuvnesh123/FFmpeg-Video-Editor-Android