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• Evolution #3092 : Gestion des contenus par lots

  20 novembre 2013, par b b

  Hop, je me greffe sur ce ticket car on y pense depuis un moment avec tonton.

  Un début de plugin est en dev pour tenter de répondre à ce besoin :

  http://zone.spip.org/trac/spip-zone/browser/_plugins_/actions_multiples

  Pour info, dans ce plugin on va tenter de reproduire ce que propose github dans son interface de gestion des tickets (voir screenshot ci-jointe) en ajoutant un formulaire en début des listes d’objets dans le privé.

• Tools for investigating video corruption — ffmpeg / libavcodec

  11 juillet 2013, par Gopherkhan

  In my current work I'm trying to encode some images to h264 video using the FFMPEG's C library. The resulting video plays fine in VLC, but has no preview image. The video can play in VLC and Mplayer on ubuntu, but won't play on Mac or PC (in fact, it causes a "VTDecoderXPCService quit unexpectedly" error on Mac).

  If I run the resulting file through FFMPEG using the command line, the resulting file has a preview image, and plays correctly everywhere.

  Apparently the file that I get out of the program is corrupt in some weird place, but I don't have any output during my compilation or run to indicate where. I can't share my code at the moment (work code isn't open source yet :-( ), but I have tried a number of things :

  1. Writing only header and trailer data (av_write_trailer) and no frames
  2. writing frames only minus the trailer (using avcodec_encode_video2 and av_write_frame)
  3. Adjusting our time_base and frame pts values to encode only one frame per second
  4. Removing all variable frame rate code
  5. Numerous other variants that I won't bother you with here

  In creating my project, I've also followed the following tutorials :

  • Dr. Anger's FFMPEG tutorial
  • FFmpeg's Own Tutorials
  • An older tutorial from FFmpeg

  And consulted the deprecated ffmpeg functions list

  And compiled FFMPEG on ubuntu according to the official doc

  But every run of the program runs into the exact same problem.

  My question is, is there anything obvious that causes a programmatic run of FFMpeg to differ from a console run (e.g., an incomplete finalization, some threading issues, etc.) ? Like some obvious reason that a console run could repair a corrupted file ? Or is there a decent tool/method for inspecting a video file and finding the point of corruption ?

• all pages of the same domain keep loading until background process finish [on hold]

  7 juillet 2013, par Kal

  I upload video files to mydomain_1.com and once the upload finish I store info about the uploaded file in mydomain_1 database under table process_queue.

  I have process.php under mydomain_2.com that connects to mydomain_1 database and check if process_queue table has any new entries. If there is then process.

  notice we are talking two separate domains.

  the moment process.php finds a new entry it starts converting the video using exec with ffmpeg.

  while the process is happening I cannot access any page under mydomain_1.com. all pages keep loading forever. the moment the process is done on mydomain_2.com I get access to pages on mydomain_1.com

  I thought it could be a mysql connection issue so on process.php I used mysql_close($db) immediately after every call to the database.