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• mp4 video converted using ffmpeg works on safari 8 but wont play on safari

  12 janvier 2016, par Pratik Pawar

  The website I am working on has a video upload and play functionality which works like this :

  1) Upload a video of any format it will converted to .mp4 format video using ffmpeg with following command

  "ffmpeg -i <sourcerawpath> -c:v libx264 -profile:v baseline -level 3.0    <destfullpath>
  
  </destfullpath></sourcerawpath>

  2) When I try to play these videos from website it works just fine on chrome and safari 8 but when i try to play these videos on safari 9 it show blank screen with following error in browsing console

  Failed to load resource : Plug-in handled load

  Earlier the mp4 video would not even play on safari 8 but when we added -profile:v baseline -level 3.0 to ffmpeg command now it works fine. We could not find solution for safari 9.

  From java we are sending this response :

  return Response.ok(video, "video/mp4").header("Aceept-Ranges", "bytes").cacheControl(cc).build();

  video --> video file to be served.

  Can anyone tell me what is the issue in this case ?

• Anomalie #3670 (Nouveau) : Pas de mise à jour proposée vers une version en état dev

  1er février 2016, par Franck Dalot

  Bonjour :-)

  PHP 5.4.45
  SPIP 3.0.21 [22462]

  Je ne sais pas trop si le problème vient de "svp" ou de "http://zone.spip.org/trac/spip-zone/browser/archivelist.txt" :-(
  Quand un site contient un plugin qui est dit "stable", il n’est pas possible de le mettre à jour avec une version dite "dev" (je ne sais pas, si cela concerne aussi les autres états)
  Que la proposition de mise à jour ne soit pas dispo dans .../ecrire/ ?exec=admin_plugin est compréhensible.
  Par contre, lorsque la personne va dans .../ecrire/ ?exec=charger_plugin il devrait quand même être possible de faire l’installation, et non une phrase indiquant que le plug est "déjà installé" alors que ce n’est pas le cas.
  Dans .../ecrire/ ?exec=charger_plugin il devrait y avoir la version "stable" et "dev"
  C’est problématique pour un passage des sites 3.0 vers 3.1 sauf à faire la suppression du plug pour le remettre.

  Exemple, le cas de "accès restreint" http://plugins.spip.net/accesrestreint.html
  J’avais la version "stable" 3.8.13 et ne pouvait pas mettre la version 3.14.0 "dev"
  Voir copies d’écran
  Franck

• When recording MP4 using ffmpeg suddenly power off

  2 décembre 2016, par wanglx

  Now I used C language and ffmpeg realize a multiplex real-time audio and video to MP4 files of the program and everything works fine, but when in the process of reuse of sudden power failure, the recording is MP4 file is damaged, VLC can not play this file.
  I think reason is no call to write the trailer function av_write_trailer , causing index and time stamp information lost, I use araxis merge tool compared the successful call av_write_trailer function of file and a no av_write_trailer to call the damaged files and found two different points :
  1. Damaged files in the file header box number value not right
  2. The damaged file no end of file.

  Now I want to repair after power on my program can automatically repair the damaged files, in Google did not find effective methods.
  my train of thought is in the normal recording process saves per second a damaged file is missing two information : box number and end of file, save it to a local file, when writing the MP4 file integrity delete this file after, if power off damaged, then in the next power, read the file and the corresponding information to write the damaged files corresponding position to. But now the problem is that I don’t know how to save the number of box and the end of the file, I this is feasible ? If possible, what should I do ? Looking forward to your reply !