Recherche avancée

Sur d’autres sites (8341)

• Cannot run program "/data/user/0/com.athkar.musliem/files/ffmpeg" : error=2, No such file or directory

  3 avril 2021, par gejivi2011

  I am trying to make a video with an audio and single image, but have the error that on the title, I am using android studio with FFmpeg :
I need to make that video with just one image and one mp3 file

  


  The error was :

  


  Exception while trying to run: [Ljava.lang.String;@b6e12b4
java.io.IOException: Cannot run program "/data/user/0/com.athkar.musliem/files/ffmpeg": 
error=2, No such file or directory

Caused by: java.io.IOException: error=2, No such file or directory


  


  1- this code to get the save directory

  


      String root = Environment.getExternalStorageDirectory().toString();
    myDir = new File(root);


  


  2- The image uri :

  


   imageUri = Uri.parse("android.resource://com.athkar.musliem/drawable/" + R.drawable.test_image);


  


  3- to select mp3 file :

  


      public void openMp3Selector() {
    Intent intent;
    intent = new Intent();
    intent.setAction(Intent.ACTION_GET_CONTENT);
    intent.setType("audio/*");
    startActivityForResult(Intent.createChooser(intent, "Select mp3"), REQ_CODE_PICK_SOUNDFILE);
}

 @Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQ_CODE_PICK_SOUNDFILE && resultCode == Activity.RESULT_OK) {
        if ((data != null) && (data.getData() != null)) {
            audioFileUri = data.getData();
        }
    }
}


  


  4- finally FFmpeg code :

  


    fFmpeg = FFmpeg.getInstance(VideoMakerActivity.this);
            String[] strArr = new String[]{"-y", "-r", imageUri.getPath(), "-i", imageUri.getPath(), "-vcodec", "libx264", "-r", "2", "-pix_fmt", "yuv420p", "-preset", "ultrafast", audioFileUri.getPath()};
            try {
                fFmpeg.execute(strArr, new ExecuteBinaryResponseHandler() {
                    @Override
                    public void onSuccess(String message) {
                        super.onSuccess(message);
                        Log.e("MAS", "onSuccess");
                    }

                    @Override
                    public void onProgress(String message) {
                        super.onProgress(message);
                        Log.e("MAS", "onProgress");

                    }

                    @Override
                    public void onFailure(String message) {
                        super.onFailure(message);
                        Log.e("MAS", "onFailure");

                    }

                    @Override
                    public void onStart() {
                        super.onStart();
                        Log.e("MAS", "onStart");

                    }

                    @Override
                    public void onFinish() {
                        super.onFinish();
                        Log.e("MAS", "onFinish");

                    }
                });
            } catch (FFmpegCommandAlreadyRunningException e) {
                e.printStackTrace();
            }


  


• Right way to use vmaf with ffmpeg

  14 juin, par dravit

  I am trying to calculate the VMAF score of a processed video wrt the original file.

  


  Command I have used :

  


  ffmpeg -y -loglevel info -stats -i original.mp4 -i processed.mp4 -lavfi "[0]null[refdeint];[refdeint]scale=1920:1080:flags=neighbor[ref];[1]setpts=PTS+0.0/TB[b];[b]scale=1920:1080:flags=neighbor[c];[c][ref]libvmaf=log_fmt=json:phone_model=1:model_path={model_path_here}/vmaf_v0.6.1.json:n_subsample=1:log_path=log.json" -f null -


  


  Now as per the official documentation of vmaf with ffmpeg found here, it says source/reference file followed by the encoded/distorted/processed file.

  


  But almost all of the blogs I came across, they are using the other way round order of the args, i.e. processed file followed by the original file.

  


  Few examples :

  


  


  1. https://medium.com/@eyevinntechnology/keep-an-eye-on-the-video-quality-b9bcb58dd5a1 : search for "Using VMAF within FFMPEG" in it.

     


  


  2. https://websites.fraunhofer.de/video-dev/calculating-vmaf-and-psnr-with-ffmpeg/ : search for "Metric Calculation with FFmpeg" in it.

     


  


  


  EDIT

  


  NOTE : Changing the order does change the VMAF score.

  


• PHP FFMPEG to merge video and audio by links

  24 mai 2021, par Артем Паламарчук

  I have two links for the same video resource, like this :

  


  File One

  


  And

  


  File Two

  


  I want to retrieve audio from File Two and replace it with audio from File One and save the File One as a local file. Is any way to do this by the means of ffmpeg in my PHP code ? There is solution from Linux command line, but it is impossible for me to use it as I am on shared Linux hosting and it is unable to install ffmpeg on my Linux system. But I have installed ffmpeg as a php library via composer from github

  


  How can I implement this properly.