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• Converting videos to flv using FFMPEG and losing the duration

  22 avril 2012, par Aline Bossi

  I use FFMPEG to convert some videos for the extension FLV, thereafter through an application is sent this video to a web page, where it is displayed through the JW Player. My problem happens on the website because the player does not display the total time of the video, thus I can not move forward or back my video. For conversion use the following code :

  -i "{ArquivoOrigem}" -vcodec flv -f flv -r 29.97 -s 320x240 -aspect 16:9 -b 200k -ac 1 -ar 22050 -ab 56k d "{ArquivoDestino}"

  So, is there any way I can do that ?
  tks

• Show all four videos as thumbnails but play them one by one using FFMPEG

  18 juillet 2018, par p.jadhav

  I want to show four videos as thumbnails but play them one by one (video1 plays first then video2, etc).

  I tried this

  String[] cmd={"-loop","1","-t","36","-i","/storage/emulated/0/Download/trasprent_bg.png","-i","video1.mp4","-i","video2.mp4","-i","video3.mp4","-i","video4.mp4","-i","collage_1.png","-filter_complex","[1:v]scale=500:500,crop=266:266[tfg];[2:v]scale=500:500,crop=266:266,setpts=PTS+9/TB[bfg];[3:v]scale=500:500,crop=266:266,setpts=PTS+18/TB[threefg];[4:v]scale=500:500,crop=266:266,setpts=PTS+27/TB[fourfg];[5:v]scale=-1:-1[colage];[0:v][tfg]overlay=2:2:eof_action=pass[o1];[o1][bfg]overlay=272:2:eof_action=pass[o2];[o2][threefg]overlay=2:272:eof_action=pass[o3];[o3][fourfg]overlay=272:272:eof_action=pass:shortest=1[o4];[o4][colage]overlay=0:0","-an","videoCrop.mp4"};

  which plays the videos one by one but only shows the playing video with nothing showing for the other videos :

  Using above command play video as below.
  first video play,second video play,third video play

  I want to display all four output videos but play them one by one like below.

  screen shot

  i spent lot’s of day.Please Help me.

• Android ffmpeg concat videos

  30 mai 2016, par farokovic

  I would like to concatenate two videos

  public void genererVideo() {
  
      String cmd1 = "-y -i /sdcard/video3.mp4 -i /sdcard/video3.mp4 -filter_complex '[0:1] [0:0] [1:1] [1:0] concat=n=2:v=1:a=1 [v] [a]' -map '[v]' -map '[a]' /sdcard/videoo.mp4";
  
  
  
      String[] command = cmd1.split(" ");
  
  
  
      if (command.length != 0) {
  
          execFFmpegBinary(command);
  
      } else {
  
          Toast.makeText(SelectedImageActivity.this, "Abd", Toast.LENGTH_LONG).show();
  
      }
  
  }