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• FFMPEG batch remove the last 2 seconds of a list of videos

  22 avril 2016, par Lisfmeg

  Removing the first seconds of a video is easy and work easy.

  But I need a way to remove the last 2 seconds of all videos in a folder. (it’s the moment my mouse go to the screen-record-program (also ffmpeg btw.) and press quit/stop)

  The ffmpeg help give me that for my wish....

  -to time_stop       record or transcode stop time
  
  -sseof time_off     set the start time offset relative to EOF
  
  -seek_timestamp     enable/disable seeking by timestamp with -ss
  
  -ss time_off        set the start time offset

  I miss something like -toeof. But ffmpeg dont have it, yet.

  Some substr in diffrent languages offer just a negative value, so I tried ....

  ffmpeg -seek_timestamp 1 -i source.mp4 -to -120 -y test.mp4

  and

  ffmpeg -seek_timestamp 1 -i source.mp4 -to -00:02 -y test.mp4

  But that follow only in "-to value smaller than -ss ; aborting." :-(

  Anyone have idea ?

  I’m on windows and think I need linux console with bash now. But before I install a virtual linux machine and try to script something the next days ..... Is there maybe a easier way ?

• FFmpeg : How to create m3u8 file list file steam .txt from .mp4 video

  11 juin 2019, par Susuka Akira

  Can someone help me create m3u8 file with a stream stream of .txt files ?

  The steam file list looks like :

  #EXTM3U
  
  #EXT-X-VERSION:5
  
  #EXT-X-TARGETDURATION:7
  
  #EXT-X-MEDIA-SEQUENCE:0
  
  #EXTINF:6.000000,
  
  #EXT-X-BYTERANGE:533168@18
  
  /output_1.txt
  
  #EXTINF:5.280000,
  
  #EXT-X-BYTERANGE:549148@533186
  
  /output_2.txt
  
  #EXTINF:4.000000,
  
  #EXT-X-BYTERANGE:467180@1082334
  
  /output_3.txt
  
  .......

  Thank you !

• i want make a video from list of bitmaps by ffmpegframerecorder

  3 mars 2016, par Muhammad Nasser

  this code to record images from sdcard i want to get the frames from array of bitmaps.

  new AsyncTask() {
  
              ProgressDialog dialog;
  
              protected void onPreExecute() {
  
                  dialog = new ProgressDialog(MainActivity.this);
  
                  dialog.setMessage("Genrating video, Please wait.........");
  
                  dialog.setCancelable(false);
  
                  dialog.show();
  
              };
  
  
  
              @Override
  
              protected Void doInBackground(Void... arg0) {
  
  
  
                  File folder = Environment
  
                          .getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
  
                  String path = folder.getAbsolutePath() + "/Camera";
  
                  ArrayList<string> paths = (ArrayList<string>) getListOfFiles(
  
                          path, "jpg");
  
                  FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(path
  
                          + "/" + "test.mp4", 400, 400);
  
                  videoPath = path + "/" + "test.mp4";
  
                  try {
  
                      //recorder.setVideoCodec(5);
  
                      recorder.setVideoCodec(avcodec.AV_CODEC_ID_MPEG4);
  
                      //recorder.setFormat("3gp");
  
                      recorder.setFormat("mp4");
  
                      recorder.setFrameRate(frameRate);
  
                      recorder.setVideoBitrate(30);
  
                      startTime = System.currentTimeMillis();
  
                      recorder.start();
  
                      for (int i = 0; i " + paths.get(i));
  
                          long t = 3000 * (System.currentTimeMillis() - startTime);
  
                          if (t > recorder.getTimestamp()) {
  
                              recorder.setTimestamp(t);
  
                              recorder.record(image);
  
                          }
  
                      }
  
                      System.out.println("Total Time:- " + recorder.getTimestamp());
  
                      recorder.stop();
  
                  } catch (Exception e) {
  
                      e.printStackTrace();
  
                  }
  
  
  
                  return null;
  
              }
  
  
  
              protected void onPostExecute(Void result) {
  
                  dialog.dismiss();
  
                  Intent intent = new Intent(Intent.ACTION_VIEW); 
  
                  intent.setDataAndType(Uri.parse(videoPath), "video/mp4");
  
                  startActivity(intent);
  
                  File file = new File(selectedFilePath);
  
                  boolean deleted = file.delete();
  
                  Toast.makeText(MainActivity.this, "Done", Toast.LENGTH_SHORT)
  
                          .show();
  
              };
  
          }.execute();
  
  </string></string>