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• Anomalie #3689 (Nouveau) : Des messages d’erreurs qui ne semblent pas avoir lieu d’être

  9 février 2016, par Franck Dalot

  Bonjour :-)
  SPIP 3.1.0 [22811]
  Php 5.6.15
  Table en MySQL
  Prefix des table : test12

  Quand je télécharge le squelette "scolaspip" en version 4 http://plugins.spip.net/scolaspip.html via SVP, j’ai systématiquement un message d’erreur qui ne me semble pas avoir lieu d’être (voir copie d’écran erreur 0)
  Si dans .../ecrire/ ?exec=admin_plugin&voir=actif je clique sur "Tout cocher", que je choisi "désinstaller", j’ai systématiquement un autre message (voir copie d’écran erreur 1)

  A savoir que cela fait pareil en SPIP 3.0.21 [22462]

  J’ai fait aussi un test en 3.0.21 avec le squelette "SPIPMine 2.0.1 - dev" http://plugins.spip.net/spipmine.html car il necessite également spipr, j’ai le même message que la copie d’écran 0, par contre, je ne peux pas dire pour l’autre message, car SVP semble avoir un problème quand il y a pas mal de necessite, je suis dans l’obligation de réactualiser la page, mais ce point demanderait confirmation par une autre personne
  Franck

• Update Database After shell_exec() Using FFMPEG/Laravel

  25 avril 2020, par Mike

  I want to update a database record (MySQL) after the FFMPEG process is complete. Normally I would just call a function just after the FFMPEG command, but I needed to add > /dev/null 2>/dev/null & so I didn't have to wait for the FFMPEG process to complete which would mean the REST call would hang for a LONG time and that would cause bad UX for the front-end.

  



  I'm not sure where to begin with it. My first thought is to make a REST request, but maybe calling the method in Laravel directly would be better.

  



  Can I do a curl call after the FFMPEG command ? Or can I call a PHP method ? Or is there a better way ?

  



  PHP FFMPEG Method

  



  private function transcode($movie)
{
    try {
        $name       = 'master.' . $movie->extension;
        $this->path = storage_path('app/public/movies/') . $movie->id . '/';
        $fps        = $this->getFrameRate($name);
        $width      = $this->getVideoWidth($name);
        $height     = $this->getVideoHeight($name);

        // ffmpeg commands
        $c = $this->buildCommand($width, $height, $fps);

        // ffmpeg -  added '> /dev/null 2>/dev/null &' so it will not wait to finish
        $ffmpeg = shell_exec('ffmpeg -i ' . $this->path . $name . ' -progress ' . $this->path . 'transcode.log' . $c . ' > /dev/null 2>/dev/null &');

        return response()->json(['message' => 'transcode initiated'], 200); 

    }
    catch(\Exception $e)
    {
        return response()->json(['error' => $e->getMessage()], 500);
    }
}


  



  Here is the bash curl post idea

  



  $curl = 'curl --data "param1=value1&param2=value2" http://hostname/transcode/complete';

$ffmpeg = shell_exec('ffmpeg -i ' . $this->path . $name . ' -progress ' . $this->path . 'transcode.log' . $c . '; $curl > /dev/null 2>/dev/null &');


  



  I could be going down the wrong path with the above, but I'm trying to move forward with something.

  


• How to make a batch file wait for all processes of another call to finish before continuing

  1er juillet 2020, par Roman Stadler

  The idea of this script is to take a (lecture) video, split it into smaller pieces, remove the silence for each one, and merge them back together, for increased performance, since the silence-removing script does not scale that well for larger videos.

  


  The 3 batch scripts below work perfectly when started manually after eachother, but when trying to launch them from a single .bat file, I can't prevent them from starting at the same time, which creates errors at the merging stage.

  


  These are the 3 batch files :

  


  

  1. split.bat

  


  2. startall.bat

  


  3. merge.bat

  


  


  Split.bat creates 10 minute long segments, afterwards, startall.bat starts one Video-Remove-Silence task for every segment. At the end, merge.bat creates one single mp4 file with all the segments.

  


  split.bat does the following :

  


  ffmpeg -i in.mp4 -c copy -map 0 -segment_time 00:10:00 -f segment out%%03d.mp4
exit


  


  startall.bat :

  


  start start000.bat
start start001.bat
start start002.bat
start start003.bat
...


  


  The start000.bat call looks like this :

  


  python video-remove-silence out000.mp4 --linear 0.0005
exit


  


  And merge.bat :

  


  :: Create File List
for %%i in (*_result.mp4) do echo file '%%i'>> mylist.txt
:: Concatenate Files
ffmpeg -f concat -safe 0 -i mylist.txt -c copy shortened.mp4

del "C:\Users\Roman\Desktop\download\mylist.txt"
del "C:\Users\Roman\Desktop\download\out*.mp4"
exit


  


  When trying either call, or start /wait, errors occur due to simultaneous execution :

  


  START /wait split.bat
START /wait startall2.bat
START /wait merge.bat


  


  So basically my question is, how can I call these 3 scripts and prevent merge.bat from starting, until all processes inside startall.bat have finished ?