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Autres articles (96)

  • 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 (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

Sur d’autres sites (9429)

  • 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 ?

  • 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.

  • http: Improve handling of Content-Range with Transfer-Encoding:chunked

    2 février 2022, par Justin Ruggles
    http: Improve handling of Content-Range with Transfer-Encoding:chunked

    When Transfer-Encoding:chunked is used, the client must ignore a
    
Content-Length header, if present. However, it should not ignore a
    
Content-Range header, which also includes the full size of the
    
entity.
    • [DH] libavformat/http.c

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