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  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

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  • ffmpeg 2 pass encoding- understand the statistics in the output .log file

    21 juin 2021, par Yaelvi

    I am using 2 pass encoder to encode my input video with a target bitrate.
I want to get the encoder (x264) statistics from the first pass- these statistics are written to ffmpeg2pass.log
the output for each frame looks like that :

    


    in:2 out:2 type:B dur:2 cpbdur:2 q:28.41 aq:25.07 tex:4721 mv:2357 misc:2266 imb:24 pmb:527 smb:3049 d :- ref:0 ;

    


    How can I found is the meaning of each value ? (for example, mv is motion vectors, but what is the meaning of misc, imb, pmb etc.?)

    


    ffmpeg command used :
ffmpeg -f rawvideo -pix_fmt yuv422p16le -s:v 1280x720 -i "input_file.yuv" -c:v libx264 -pass 1 -stats -vstats -passlogfile "log_file_prefix" -f mp4 -y "output.mp4" &&
ffmpeg -f rawvideo -pix_fmt yuv422p16le -s:v 1280x720 -i "input_file.yuv" -c:v libx264 -pass 2 -passlogfile "log_file_prefix" -y "output.mp4"

    


  • ffmpeg 2 pass encoding- understand the statistics in the output .log file

    21 juin 2021, par Yaelvi

    I am using 2 pass encoder to encode my input video with a target bitrate.
I want to get the encoder (x264) statistics from the first pass- these statistics are written to ffmpeg2pass.log
the output for each frame looks like that :

    


    in:2 out:2 type:B dur:2 cpbdur:2 q:28.41 aq:25.07 tex:4721 mv:2357 misc:2266 imb:24 pmb:527 smb:3049 d :- ref:0 ;

    


    How can I found is the meaning of each value ? (for example, mv is motion vectors, but what is the meaning of misc, imb, pmb etc.?)

    


    ffmpeg command used :
ffmpeg -f rawvideo -pix_fmt yuv422p16le -s:v 1280x720 -i "input_file.yuv" -c:v libx264 -pass 1 -stats -vstats -passlogfile "log_file_prefix" -f mp4 -y "output.mp4" &&
ffmpeg -f rawvideo -pix_fmt yuv422p16le -s:v 1280x720 -i "input_file.yuv" -c:v libx264 -pass 2 -passlogfile "log_file_prefix" -y "output.mp4"

    


  • Revision a0c772e381 : Fix SAD adjustment to stop overrunning array Change-Id : Ib98f5688abc80ebbaa6512

    1er mai 2014, par Peter de Rivaz

    Changed Paths :
     Modify /vp9/encoder/vp9_encoder.c



    Fix SAD adjustment to stop overrunning array

    Change-Id : Ib98f5688abc80ebbaa6512f9b052b40640507744