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• Android Merging two video with different (sizes,codec,frames,aspect raito) using FFMPEG

  6 septembre 2017, par Alok Kumar Verma

  I’m making an app which merges two or more than two video files which I’m getting from another activity. After choosing the files we pass the files to another activity where the merging happens. I’ve followed this link to do the same : AndroidWarZone FFMPEG

  Here I found the way on how to merge the two files only with different qualities. The command is given below :

  String[] complexCommand = {"ffmpeg","-y","-i","/storage/emulated/0/videokit/sample.mp4",
  
  "-i","/storage/emulated/0/videokit/in.mp4","-strict","experimental",
  
  "-filter_complex",
  
  "[0:v]scale=640x480,setsar=1:1[v0];[1:v]scale=640x480,setsar=1:1[v1];[v0][0:a][v1][1:a] concat=n=2:v=1:a=1",
  
  "-ab","48000","-ac","2","-ar","22050","-s","640x480","-r","30","-vcodec","mpeg4","-b","2097k","/storage/emulated/0/vk2_out/out.mp4"}

  Since I have a list of selected videos inside my array which I’m passing to the next page, I’ve done some changes in my command, like this :

  private void mergeVideos() {
  
      String savingPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/video.mp4";
  
  
  
      ArrayList<file> fileList = mList;
  
  
  
      List<string> filenames = new ArrayList<string>();
  
  
  
      for (int i = 0; i &lt; fileList.size(); i++) {
  
          filenames.add("-i");
  
          filenames.add(fileList.get(i).toString());
  
      }
  
  
  
      Log.e("Log===",filenames.toString());
  
  
  
      String joined = TextUtils.join(", ",filenames);
  
  
  
      Log.e("Joined====",joined);
  
  
  
      String complexCommand[] = {"-y", joined,
  
              "-filter_complex",
  
              "[0:v]scale=640x480,setsar=1:1[v0];[1:v]scale=640x480,setsar=1:1[v1];[v0][0:a][v1][1:a] concat=n=2:v=1:a=1",
  
              "-ab","48000","-ac","2","-ar","22050","-s","640x480","-r","30","-vcodec","mpeg4","-b","2097k", savingPath};
  
      Log.e("RESULT====",Arrays.toString(complexCommand));
  
  
  
     execFFmpegBinary(complexCommand);  }
  
  </string></string></file>

  In the log this is the the output I’m getting :

  This one is for received data which I have added in the mList

  E/RECEIVED DATA=====: [/mnt/m_external_sd/DCIM/Camera/VID_31610130_011933_454.mp4, /mnt/m_external_sd/DCIM/Camera/VID_23120824_054526_878.mp4]
  
  E/RESULT====: [-y, -i, /mnt/m_external_sd/DCIM/Camera/VID_31610130_011933_454.mp4, -i, /mnt/m_external_sd/DCIM/Camera/VID_23120824_054526_878.mp4, -filter_complex, [0:v]scale=640x480,setsar=1:1[v0];[1:v]scale=640x480,setsar=1:1[v1];[v0][0:a][v1][1:a] concat=n=2:v=1:a=1, -ab, 48000, -ac, 2, -ar, 22050, -s, 640x480, -r, 30, -vcodec, mpeg4, -b, 2097k, /storage/emulated/0/video.mp4]

  Here result is the complexCommand that is going inside the exeFFMPEGBinary() but not working.

  This is my exceFFMPEGBinary()

  private void execFFmpegBinary(final String[] combine) {
  
      try{
  
      fFmpeg.execute(combine, new ExecuteBinaryResponseHandler() {
  
          @Override
  
          public void onFailure(String s) {
  
              Log.d("", "FAILED with output : " + s);
  
          }
  
  
  
          @Override
  
          public void onSuccess(String s) {
  
              Log.d("", "SUCCESS with output : " + s);
  
              Toast.makeText(getApplicationContext(),"Success!",Toast.LENGTH_SHORT)
  
                      .show();
  
          }
  
  
  
          @Override
  
          public void onProgress(String s) {
  
              Log.d("", "progress : " + s);
  
          }
  
  
  
          @Override
  
          public void onStart() {
  
              progressDialog.setMessage("Processing...");
  
              progressDialog.show();
  
          }
  
  
  
          @Override
  
          public void onFinish() {
  
              progressDialog.dismiss();
  
          }
  
      });
  
  } catch (FFmpegCommandAlreadyRunningException e) {
  
      // do nothing for now
  
  }
  
  }

  I’ve done this and run my project, now the problem is it is not merging/concatenating anything, just a progressDialog comes up for a fraction of second and all I’m getting is this in my log :

  E/FFMPEG====: ffmpef : coorect loaded

  This means that ffmpeg is loading and nothing is getting implemented. I don’t get any log for onFailur, onSuccess(), onStart().

  Any suggestions would help me achieve my goal. Thanks.

  Note : I have done this merging with the use of Mp4Parser but there is a glitch inside it, it requires the file with same specification. So this is not my requirement.

  EDITS

  I did some more research and got this to concatenate, but this is not working either, here is the link : Concatenating two files

  I’ve found this stuff also from a link : FFMPEG Merging/Concatenating
  and found that his piece of code is working fine. But not mine.

  I’ve used that command also but it is not working nor giving me any log results. Except the FFMPEG Loading.

  Here is the command :

  complexCommand = new String[]{"-y", "-i", file1.toString(), "-i", file2.toString(), "-strict", "experimental", "-filter_complex",
  
              "[0:v]scale=1920x1080,setsar=1:1[v0];[1:v] scale=iw*min(1920/iw\\,1080/ih):ih*min(1920/iw\\,1080/ih), pad=1920:1080:(1920-iw*min(1920/iw\\,1080/ih))/2:(1080-ih*min(1920/iw\\,1080/ih))/2,setsar=1:1[v1];[v0][0:a][v1][1:a] concat=n=2:v=1:a=1","-ab", "48000", "-ac", "2", "-ar", "22050", "-s", "1920x1080", "-vcodec", "libx264","-crf","27","-q","4","-preset", "ultrafast", rootPath + "/output.mp4"};

• How to use the result of guardian-ffmpeg-Android ?

  4 avril 2013, par user1914692

  I am trying to build ffmpeg on Android. There are many tutorials. Some are very old.
  So I want to try one that can use newer version of ffmpeg and Android NDK.
  After long time searching, I find one, guardianproject / android-ffmpeg

  The project was updated several months ago.
  NDK r8 is used. ffmpeg is put from online, so a latest version.

  After I follow all the instruction, I am confused which result I should use, and how to use it.
  The README mentions testing, like :

  # embedding metadata into a matroska video /data/local/ffmpeg -y -i test.mp4 \
  
      -attach attach.txt -metadata:s:2 mimetype=text/plain \
  
      -acodec copy -vcodec copy testattach.mkv

  First, I fail to find the path : /data/local
  Second, this is a command. How will I use it in Android ?

  Totall confused.
  Any light ?

• Android ffmpeg and hardware acceleration

  4 mai 2015, par ApriOri

  I want my video streaming application to utilize hardware acceleration in android.
  I’m limited to udp video broadcasting so I can’t use Android media player, so I plan to use ffmpeg.
  Is there a way to make ffmpeg utilize hardware acceleration on android ?