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• Android ffmpeg video cut

  23 juin 2021, par Raupp

  I´m trying to edit some videos in my Android app using FFmpeg, but I´m facing some problems when I tried to take just a part of the video.

  



  I´m using this ffmpeg compilation/lib https://github.com/WritingMinds/ffmpeg-android-java

  



  I tried to use this command to trim/cut the video

  



  "-y -i input.mp4 -ss 00:00:01.00 -t 00:00:15.000 -c copy output.mp4"


  



  But with some videos I´m getting a black screen or the video just freezes. The sound works fine in all my tests.

  



  With this command

  



  "-y -i input.mp4 -ss 00:00:01.000 -t 00:00:15.000 -async 1 output.mp4"


  



  Everything works fine in all my tests (video/sound) but takes too much time to generate the output file, this 15s file takes more than 2 minutes to be generated.

  



  I tried other variations of these commands, but I always get problems with the video stream (with black screen or freezing) or takes too much time to generate the output (the user can only select 15s of the videos to send to my server)

  



  Thanks by the help !

  



  EDIT :

  



  this is the part of the code that is trimming the video

  



  String[] cmd = new String[]{"-y","-i",input,"-ss","00:00:05.000","-vcodec","copy",
            "-acodec","copy","-t","00:00:15.00","-strict","-2",output };

    final FFmpeg ffmpeg = FFmpeg.getInstance(this);
    try {
        ffmpeg.execute(cmd, new FFmpegExecuteResponseHandler() {
            @Override
            public void onSuccess(String message) {
                Log.i("VideoEditActivity", "Success " + message);
                is_video_generated_ = true;
            }

            @Override
            public void onProgress(String message) {
                Log.i("VideoEditActivity", "Progress updated " + message);
            }

            @Override
            public void onFailure(String message) {
                Log.e("VideoEditActivity", "ERROR! " + message);
            }

            @Override
            public void onStart() {
                progress_dialog_.setMessage(getString(R.string.str_video_generating));
                progress_dialog_.show();
            }

            @Override
            public void onFinish() {
                Log.i("VideoEditActivity", "Finished");
                progress_dialog_.hide();

                Intent intent = new Intent(getApplicationContext(), VideoPlayActivity.class);
                intent.putExtra("media", edited_video_path_);
                startActivity(intent);
            }
        });
    } catch (FFmpegCommandAlreadyRunningException e) {
        e.printStackTrace();
    }


  



  This is the original file : [https://drive.google.com/file/d/0BzqJL_nNetbRYmxvcTljanJwR00/view?usp=sharing][1]

  



  And this the output : 0BzqJL_nNetbReENjRGMtVXQ5VHM/view ?usp=sharing (stack overflow does not allow me to add more than 2 links)

  


• Failing to upload an mp4 to youtube

  28 juillet 2018, par Joseph Berry

  I’m trying to convert an WMA file into mp4 in order to upload the file to youtube.
  VN550672.wma.zip
  Although the conversion is successful (see below) i’m not able to upload the file to youtube. I’m getting the following error

  The video has failed to process. Please make sure you are uploading a supported file type.

  VN550672.mp4.zip

  Any suggestions ?

  System configuration :
  Python version : 3.6.3
  Pydub version : 0.22.1
  ffmpeg or avlib ? : ffmpeg
  ffmpeg/avlib version : 2.8.4

• Fixing a corrupted .MP4 file. which might be a 3gp file

  2 juin 2020, par Tendekai Muchenje

  I have a file called input.MP4 and it is corrupted. It's from a CCTV camera. I tried everything, ffmpeg, VLC convert, no luck. However, I used mediainfo and exiftool and extracted the following info. I am wondering if someone can figure out if I can use any of this info to fix it or convert it to a usable format. I have a copy of it here on my Google Drive

  



  mediainfo gave me this :

  



  General
Complete name                       : input.MP4
Format                              : MPEG-4
Format profile                      : 3GPP Media Release 5
Codec ID                            : 3gp5 (3gp5/3gp4/avc1/mp42/isom)
File size                           : 5.77 MiB
IsTruncated                         : Yes


  



  exiftool gave me this :

  



  ExifTool Version Number          : 10.80
File Name                        : input.MP4
Directory                        : /home/tendi/Downloads
File Size                        : 5.8 MB
File Modification Date/Time      : 2018:07:21 19:09:03-04:00
File Access Date/Time            : 2018:07:21 19:30:48-04:00
File Inode Change Date/Time      : 2018:07:21 19:30:48-04:00
File Permissions                 : rw-rw-r--
File Type                        : 3GP
File Type Extension              : 3gp
MIME Type                        : video/3gpp
Major Brand                      : 3GPP Media (.3GP) Release 5
Minor Version                    : 0.0.0
Compatible Brands                : 3gp5, 3gp4, avc1, mp42, isom
Movie Data Size                  : 5899106
Movie Data Offset                : 44


  



  Any suggestions ?