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• Anomalie #4194 (Nouveau) : Rendre spip_loader compatible php 7.2

  17 octobre 2018, par Franck D

  Hello :-)
  En faisant une série de test https://www.mail-archive.com/spip-zone@rezo.net/msg46352.html
  Cela m’a fait découvrir que spip_loader avait dans 2 cas chez ovh des problèmes (donc un grave).

  Pour info, pour le voir, il faut obligatoirement faire une nouvelle installation ! Car sans quoi spip_loader fonctionne si un spip est déjà en place !
  Dans le premier cas, spip_loader ne fonctionne pas, dans le deuxième, l’installation fonctionne quand même !

  Environnement : stable
  Version PHP 7.2
  Moteur:phpcgi
  Mode : développement

  Warning : Use of undefined constant _DIR_TMP - assumed ’_DIR_TMP’ (this will throw an Error in a future version of PHP) in /.../pclzip.php on line 28
  Après avoir fait un clique sur "Commencer l’installation"

  Warning : Use of undefined constant _DIR_TMP - assumed ’_DIR_TMP’ (this will throw an Error in a future version of PHP) in /.../pclzip.php on line 28
  Warning : Cannot modify header information - headers already sent by (output started at /.../pclzip.php:28) in /.../spip_loader.php on line 1228

  Environnement : stable
  Version PHP 7.2
  Moteur:php
  Mode : développement

  Warning : Use of undefined constant _DIR_TMP - assumed ’_DIR_TMP’ (this will throw an Error in a future version of PHP) in /.../pclzip.php on line 28
  Après avoir fait un clique sur "Commencer l’installation"

  Warning : Use of undefined constant _DIR_TMP - assumed ’_DIR_TMP’ (this will throw an Error in a future version of PHP) in /.../pclzip.php on line 28

  Franck

• Windows Pipes STDIN and STDOUT Parent Child proc communication IPC FFMPEG

  15 octobre 2018, par Evren Bingøl

  I am writing a simple WINDOWS app which demonstrates piping,

  I pass byte size data down to child proc, increment the value and send the char size data back to parent and loop until it reaches MAX_CHAR
  Pretty much demonstration of "i++" with IPC.

  Parent Process

  while(i<256){
  
      bSuccess = WriteFile(g_hChildStd_IN_Wr, chBuf, sizeof(char), &dwWritten, NULL);
  
      bSuccess = ReadFile(g_hChildStd_OUT_Rd, chBuf, sizeof(char), &dwRead, NULL); // IF THERE IS NO FFLUSH IT BLOCKS
  
  }

  And in Child

  while (i<256){
  
          byte data=0;
  
          fread(&data, sizeof(char), 1, stdout);
  
          data++;
  
          fwrite(&data, sizeof(char), 1, stdout);
  
          //fflush(stdout); IF I DO NOT HAVE THIS  PARENT BLOCKS ON READ
  
  }

  First of all if I do not FFLUSH child proc stdout, the parent blocks on reading child’s stdout.

  How can one run this code without having to fflush child’s stdout.

  Closing the pipe after child’s first write is not an option as it is in a loop and needs to execute 256 times.

  more generically I want the child to write N bytes to parent, parent read that N bytes do something and write back to child another N bytes and child does something with that N bytes and write to parent N bytes. This happens M times.

  thing is I can not use fflush because my final goal is to use a child process that is not implemented by me.

  My final goal is to pipe data to FFMPEG encode the data and read back from the stdin and do this over and over again with out having to fork a new FFMPEG process for each image frame but rather fork one instance of FFMPEG and pipe data in and read data out from it. And since I did not implement ffmpeg and I can not change the source code.

  thanks

  Thanks

• Killing cmd processes in Bravobit FFmpeg

  10 octobre 2018, par kataroty

  I am using Bravobit FFmpeg Bravobit FFmpeg github to convert some audio files. There are more convertion than these 2 but I do not think they are necessary to add here.

  My question is, is it possible to kill or stop these commands once they are started.

  At the moment when I start the first method convertPCMToWav() and then call finish() in the Main method which stops all other processes but these. They just keep on going like nothing has happened.

  public class AudioProcessor {
  
  
  
      private Context context;
  
      private FFmpeg ffmpeg;
  
  
  
      private File micPcmFile;
  
  
  
      private File pcmtowavTempFile;
  
      private File mp3towavTempFile;
  
  
  
      public AudioProcessor(Context context, Activity activity) {
  
          ffmpeg = null;
  
          ffmpeg = FFmpeg.getInstance(context);
  
          this.context = context;
  
          prepare();
  
      }
  
  
  
      /**
  
       * Program main method. Starts running program
  
       * @throws Exception
  
       */
  
      public void process() throws Exception {
  
          if (!ffmpeg.isSupported()) {
  
              Log.e("AudioProcessor", "FFMPEG not supported! Cannot convert audio!");
  
              throw new Exception("FFMPeg has to be supported");
  
          }
  
          if (!checkIfAllFilesPresent()) {
  
              Log.e("AudioProcessor", "All files are not set yet. Please set file first");
  
              throw new Exception("Files are not set!");
  
          }
  
  
  
          Log.e("AudioProcessor", "Start processing audio");
  
  
  
  
  
  
  
  
  
          Handler handler = new Handler();
  
          handler.postDelayed(new Runnable() {
  
              @Override
  
              public void run() {
  
                  convertPCMToWav();
  
              }
  
          }, 200);
  
      }
  
  
  
      /**
  
       * Prepares program
  
       */
  
      private void prepare() {
  
          prepareTempFiles();
  
      }
  
  
  
      /**
  
       * Converts PCM to wav file. Automatically create new file.
  
       */
  
      private void convertPCMToWav() {
  
          String[] cmd = { "-f" , "s16le", "-ar", "44.1k", "-i", micPcmFile.toString(), "-y", pcmtowavTempFile.toString()};
  
          ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
  
  
  
              @Override
  
              public void onStart() {
  
                  super.onStart();
  
              }
  
  
  
              @Override
  
              public void onSuccess(String message) {
  
                  super.onSuccess(message);
  
                  convertMP3ToWav();
  
              }
  
              @Override
  
              public void onFailure(String message) {
  
                  super.onFailure(message);
  
              }
  
          });
  
      }
  
  
  
      /**
  
       * Converts mp3 file to wav file.
  
       * Creates Wav file
  
       */
  
      private void convertMP3ToWav() {
  
          String[] cmd = { "-i" , backgroundMp3File.toString(), "-y", mp3towavTempFile.toString() };
  
          ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
  
              @Override
  
              public void onStart() {
  
                  super.onStart();
  
              }
  
  
  
              @Override
  
              public void onSuccess(String message) {
  
                  super.onSuccess(message);
  
                  changeMicAudio();
  
              }
  
              @Override
  
              public void onFailure(String message) {
  
                  super.onFailure(message);
  
  
  
              }
  
          });
  
      }
  
  
  
     /**
  
       * Prepares temp required files by deleteing them if they exsist.
  
       * Files cannot exists before ffmpeg actions. FFMpeg automatically creates those files.
  
       */
  
      private void prepareTempFiles() {
  
          pcmtowavTempFile = new File(context.getFilesDir()+ Common.TEMP_LOCAL_DIR + "/" + "_pcm.wav");
  
          mp3towavTempFile = new File(context.getFilesDir()+ Common.TEMP_LOCAL_DIR + "/" + "_mp3.wav");   
  
          destroyTempFiles();
  
      }
  
  
  
     /**
  
       * Destroys temp required files
  
       */
  
       private void destroyTempFiles() {
  
  
  
           pcmtowavTempFile.delete();
  
           mp3towavTempFile.delete();
  
      }
  
  
  
  }