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• android : Merge two audio files to one using FFMPEG

  27 mars 2019, par Asif Sb

  I have been stuck from the past two days, couldn’t able to figure out what went wrong.

  Log.d(TAG, "doInBackground: wee");
  
  String s = "-i ["+fileName+"] -i ["+fileName3+"] -filter_complex amerge -ac 2 -c:a libmp3lame -q:a 4 ["+finalAudio+"]";
  
  String[] cmd=s.split(" ");
  
  mergeMediaFiles(RecordActivity.this,cmd);

  And I am getting the following error.

  2019-03-27 11:38:03.525 12912-13042/com.encrypt.audiorecord E/FFmpeg: Exception while trying to run: [Ljava.lang.String;@4bfef23
  
      java.io.IOException: Cannot run program "/data/user/0/com.encrypt.audiorecord/files/ffmpeg": error=2, No such file or directory
  
          at java.lang.ProcessBuilder.start(ProcessBuilder.java:1050)
  
          at java.lang.Runtime.exec(Runtime.java:695)
  
          at java.lang.Runtime.exec(Runtime.java:560)
  
          at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10)
  
          at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38)
  
          at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10)
  
          at android.os.AsyncTask$2.call(AsyncTask.java:333)
  
          at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  
          at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
  
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
  
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
  
          at java.lang.Thread.run(Thread.java:764)
  
       Caused by: java.io.IOException: error=2, No such file or directory
  
          at java.lang.UNIXProcess.forkAndExec(Native Method)
  
          at java.lang.UNIXProcess.<init>(UNIXProcess.java:133)
  
          at java.lang.ProcessImpl.start(ProcessImpl.java:132)
  
          at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
  
          at java.lang.Runtime.exec(Runtime.java:695) 
  
          at java.lang.Runtime.exec(Runtime.java:560) 
  
          at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10) 
  
          at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38) 
  
          at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10) 
  
          at android.os.AsyncTask$2.call(AsyncTask.java:333) 
  
          at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
  
          at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245) 
  
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
  
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
  
          at java.lang.Thread.run(Thread.java:764) 
  
  </init>

  And I followed this link to integrate FFMPEG to the android app.

  Below is my mergeMediaFiles() method :

  public void mergeMediaFiles(Context context,String[] cmd) {
  
          FFmpeg ffmpeg = FFmpeg.getInstance(context);
  
          try {
  
              // to execute "ffmpeg -version" command you just need to pass "-version"
  
              ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
  
  
  
                  @Override
  
                  public void onStart() {
  
                  }
  
  
  
                  @Override
  
                  public void onProgress(String message) {
  
                  }
  
  
  
                  @Override
  
                  public void onFailure(String message) {
  
                  }
  
  
  
                  @Override
  
                  public void onSuccess(String message) {
  
                  }
  
  
  
                  @Override
  
                  public void onFinish() {
  
                  }
  
              });
  
          } catch (FFmpegCommandAlreadyRunningException e) {
  
              //
  
          }
  
      }

  And the path of all my files are from cacheDir

  fileName = getExternalCacheDir().getAbsolutePath();
  
          fileName += "/audiorecordtest.wav";

• Installing "ffmpeg" package from setup.py in Apache Beam pipeline running on Google Cloud Dataflow

  17 avril 2019, par John Allard

  I’m trying to run an Apache Beam pipeline on Google Cloud Dataflow that utilizes FFmpeg to perform transcoding operations. As I understand it, since ffmpeg is not a python package (available through PIP), I need to install it from setup.py using the following lines

  # The output of custom commands (including failures) will be logged in the
  
  # worker-startup log.
  
  CUSTOM_COMMANDS = [
  
      ['apt-get', 'update'],
  
      ['apt-get', 'install', '-y', 'ffmpeg']]

  Unfortunately, this is not working. My pipeline is stalling and when I go to examine the logs I’m seeing this

  

  RuntimeError: Command ['apt-get', 'install', '-y', 'ffmpeg'] failed: exit code: 100

  It appears to be unable to find the package ’ffmpeg’. I’m curious as to why this is - ffmpeg is a standard package that should be available under apt-get.

• Nomenclature #4519 : Renommage de terminologie (blacklist / whitelist)

  16 juillet 2020

  Et linux aussi :
  - https://seenthis.net/messages/867414

  Avec une liste proposée de terminologies :

  Proposed alternatives for master/slave include :¶

  • primary/secondary
  • main/replica or subordinate
  • initiator/target
  • requester/responder
  • controller/device
  • host/worker or proxy
  • leader/follower
  • director/performer

  Proposed alternatives for blacklist/whitelist include :¶

  • denylist/allowlist
  • blocklist/passlist