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Autres articles (44)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

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  • Is it possible to use vidstabdetect and vidstabtransform together in ffmpeg's -filter_complex option ?

    14 octobre 2019, par nlac

    I’m wondering if it is possible to use the vidstabdetect and vidstabtransform filters together in the -filter_complex option, in one ffmpeg ... command ? If it is, a simple example would be great.

  • Unrecognized option 'map 0:a ?'

    3 juillet 2020, par Bleakley

    Trying to make derivatives of silent video files is failing. My understanding is adding a trailing ? to the -map option makes ffmpeg ignore that stream if it does not exist, but its not working. The full script is below.

    


    ffmpeg -n -vsync 0 -nostdin -v info -hide_banner -stats -i "${FILE}" -movflags faststart -pix_fmt yuv420p -map 0:v -map 0:a? -c:v libx264 -vf "yadif=1,format=yuv420p" -crf "${CRFVALUE}" -preset "${PRESETSPEED}" -maxrate "${MAXRATE}"k -bufsize 1835k -c:a aac -strict -2 -b:a 384k -f mp4 "${OUTPUT}"


    


    withouth the ? after -map 0:a it works with files containing audio streams but not with silent ones. with the ? it fails all files. from the ffmpeg documentation : "A trailing ? will allow the map_channel to be optional : if the map_channel matches no channel the map_channel will be ignored instead of failing."

    


    why isn't it working here ?

    


  • oggenc : Set the right AVOption size for the pref_duration option

    6 juin 2014, par Martin Storsjö
    oggenc : Set the right AVOption size for the pref_duration option

    On big endian machines, the default value set via the faulty
    
AVOption ended up as 2^32 times too big.
    

    This fixes the fate-lavf-ogg test which currently is broken on
    
big endian machines, broken since 3831362. Since that commit,
    
a final zero-sized packet is written to the ogg muxer in that test,
    
which caused different flushing behaviour on little and big endian
    
depending on whether the pref_duration option was handled as it
    
should or not.
    

    CC : libav-stable@libav.org
    
Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DH] libavformat/oggenc.c

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