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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

Sur d’autres sites (12964)

  • Value range for AVCodecContex::global_quality, ::compression_level and AVFrame::quality

    27 février 2019, par Bim

    I’m trying to compress video using different codecs (WMV, MP4, H264, VP8, VP9) using FFmpeg / libav. I’m unsure on how to set the global and per-frame quality values. Even the range of values is unclear to me. The docs are not helpful.
    Currently I’m using :

    AVCodecContex::global_quality = FF_QP2LAMBDA * quality; // no idea about range, default seems to be 0
    
AVCodecContex::compression_level = 0; // There is FF_COMPRESSION_DEFAULT (-1), which seems to be the default
    
AVFrame::quality = FF_LAMBDA_MAX * quality; // docs say range is [1, FF_LAMBDA_MAX], default seems to be 0

    quality is in the range [0,1], where 0 means best image quality. Only 0 seems to do anything for me and leads to ok-quality videos. All other values produce low-quality output.
    Any clarification on how to set these values is welcome.

  • ffmpeg - wrong length of video

    29 mars 2012, par Victor

    I use ffmpeg to convert a video from mp4 to flv and mpg formats. Just rough conversion with few params :

     ffmpeg -i my_file.mp4 -an -f flv my_new_file.flv

    (I don't need sound so I specified -an)

    When I convert file with 2:23 length I get 0:23 length of flv(or mpg) files. Why does that happen ?

  • Finding the length of a video in Java and ffmpeg

    17 avril 2015, par Abishek R Srikaanth

    Is there a way to find a length of a video using Java ? I understand we can make use of ffmpeg to generated thumbnails and encode videos. But can it be used to get the length of the video ?

    Thanks and Regards
    Abishek R Srikaanth

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