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• FFMPEG with PHP does not execute ?

  15 septembre 2012, par Conor

  After reading about a gazillion questions here on SO related to FFMPEG with PHP I have gotten together a small snippet or what-not, but it does not seem to do anything - not even throw errors.

  My PHP is as follows :

  function get_video_thumbnail($file) {
  
      define('ALL_PLACE_WIDTH', 250);
  
      define('ALL_PLACE_HEIGHT', 200);
  
  
  
      $ffmpeg = "ffmpeg"; // where ffmpeg is
  
      $image_source_path = $file; // where the video is
  
      $image_cmd = " -r 1 -ss 00:00:10 -t 00:00:01 -s ".ALL_PLACE_WIDTH."x".ALL_PLACE_HEIGHT."   -f image2 "; // command
  
      $dest_image_path = "cdn/thumbnails"; // destination of thumbnail
  
  
  
      $str_command = $ffmpeg  ." -i " . $image_source_path . $image_cmd .$dest_image_path;     
  
      shell_exec($str_command);
  
  }

  in the root folder there's a folder "ffmpeg" in what there's "ffmpeg.exe", "ffplay.exe" and "pthreadGC2.dll". So I'm wondering, is there anything I'm missing ? I'm trying to generate a thumbnail from a video/mp4 file.

• Segmentation fault in samplerate conversion function

  17 juin 2014, par user3749290

  playmp3() using libmpg123

  if (isPaused==0 && mpg123_read(mh, buffer, buffer_size, &done) == MPG123_OK)
  
  {
  
      char * resBuffer=&buffer[0]; //22100=0,5s
  
      buffer = resample(resBuffer,22100,22100);
  
      if((ao_play(dev, (char*)buffer, done)==0)){
  
          return 1;
  
  }

  resample() Using avcodec from ffmpeg

  #define LENGTH_MS 500       // how many milliseconds of speech to store
  
  #define RATE 44100      // the sampling rate (input)
  
  #define FORMAT PA_SAMPLE_S16NE  // sample size: 8 or 16 bits
  
  #define CHANNELS 2      // 1 = mono 2 = stereo
  
  
  
  struct AVResampleContext* audio_cntx = 0;
  
  
  
  char * resample(char in_buffer[(LENGTH_MS*RATE*16*CHANNELS)/8000],int out_rate,int nsamples)
  
  {
  
      char out_buffer[ sizeof( in_buffer ) * 4];
  
      audio_cntx = av_resample_init( out_rate, //out rate
  
          RATE, //in rate
  
          16, //filter length
  
          10, //phase count
  
          0, //linear FIR filter
  
          1.0 ); //cutoff frequency
  
      assert( audio_cntx && "Failed to create resampling context!");
  
      int samples_consumed;
  
      int samples_output = av_resample( audio_cntx, //resample context
  
          (short*)out_buffer, //buffout
  
          (short*)in_buffer,  //buffin
  
          &samples_consumed,  //&consumed
  
          nsamples,       //nb_samples
  
          sizeof(out_buffer)/2,//lenout
  
          0);//is_last
  
      assert( samples_output > 0 && "Error calling av_resample()!" );
  
      av_resample_close( audio_cntx );
  
      //*resample = malloc(sizeof(out_buffer));
  
      return &out_buffer[0];  
  
  }

  When i run this code i get 3393 Segmentation fault (core dump created). Why ?

  For example, the use of pointers is correct ?
  and 22100 are the samples that are contained in 0.5 seconds of the song ?

• Evolution #2633 : Pouvoir modifier _DIR_RESTREINT_ABS

  10 juillet 2015, par jluc -

  Pourrait on réouvrir ce ticket ?

  Dans SPIP 3.1 du 15 juin environ voici la liste des occurences de ecrire que j’ai trouvé dans la dist :

  squelettes-dist/robots.txt.html:11:Disallow : /ecrire/
  spip_loader.php:44:define(’_SPIP_LOADER_PLUGIN_RETOUR’, "ecrire/ ?exec=admin_plugin&voir=tous") ;
  
  spip_loader.php:923:if (@file_exists(’ecrire/inc_version.php’)) 
  
  spip_loader.php:924 :    define(’_SPIP_LOADER_URL_RETOUR’, "ecrire/ ?exec=accueil") ;
  
  spip_loader.php:925 :    include_once ’ecrire/inc_version.php’ ;
  
  spip_loader.php:933 : else define(’_SPIP_LOADER_URL_RETOUR’, "ecrire/ ?exec=install") ;
  spip.php:14:if (!defined(’_DIR_RESTREINT_ABS’)) define(’_DIR_RESTREINT_ABS’, ’ecrire/’) ;
  ecrire/inc/flock.php:607 : *     $x = preg_files(’ecrire/data/’, ’[.]lock$’) ;
  
  ecrire/public/debusquer.php:366 :    if ($reg[1]==’ecrire/public’)
  
  ecrire/inc_version.php:38 :    define(’_DIR_RESTREINT_ABS’, ’ecrire/’) ;
  
  ecrire/inc_version.php:42 : *  vide si on est dans ecrire, ’ecrire/’ sinon */
  plugins-dist/compresseur/tests/compacte_css.php:10 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/forum/prive/modeles/forum-actions-moderer.html:2 :[(#SETretour,[(#REM|test_espace_prive| ?[(#VALecrire/|concat#SELF|replace’./’,’’)],#SELF|ancre_urlforum#ID_FORUM)])]
  
  plugins-dist/filtres_images/tests/_couleur_rgb2hsv.php:13 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/filtres_images/tests/_couleur_hsv2rgb.php:13 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/filtres_images/tests/_couleur_rgb2hsl.php:13 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/filtres_images/tests/multiple_de_trois.php:13 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/filtres_images/tests/couleur_extraire.php:13 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/filtres_images/tests/_couleur_hsl2rgb.php:13 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/textwheel/tests/tw_propre_modeles_block.php:9 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/textwheel/tests/tw_propre_modeles_inline.php:9 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/textwheel/tests/tw_propre_typo.php:9 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/textwheel/tests/tw_propre.php:9 :    while (!is_dir($remonte."ecrire"))
  
  plugins-dist/porte_plume/tests/lanceur_spip.php:7:while (!is_dir($remonte."ecrire"))
  
  plugins/spipr/zcore/v2.4.3/tests/zcore_echafaudable.php:12 :    while (!is_dir($remonte."ecrire"))
  
  plugins/auto/zcore/v2.4.5/tests/zcore_echafaudable.php:12 :    while (!is_dir($remonte."ecrire"))
  
  plugins/auto/gis/v4.26.12/tests/gis_connect_sql.php:10 :    while (!is_dir($remonte."ecrire"))
  
  config/ecran_securite.php:113 :    OR @file_exists(’ecrire/inc_version.php’)) 
  
  config/ecran_securite.php:259:if (strpos($_SERVER[’REQUEST_URI’],"ecrire/") !==false)