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Autres articles (39)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • MediaSPIP Player : problèmes potentiels

    22 février 2011, par

    Le lecteur ne fonctionne pas sur Internet Explorer
    Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
    Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...)

  • 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 (...)

Sur d’autres sites (7090)

  • mov : Do not allow updating the time scale after it has been set

    15 juillet 2013, par Martin Storsjö
    mov : Do not allow updating the time scale after it has been set

    The time scale is set in mdhd, and later validated in the
    
enclosing trak atom once all of its children have been parsed.
    

    A loose mdhd atom outside of a trak atom could update the time
    
scale of the last stream without any validation.
    

    Reported-by : Mateusz "j00ru" Jurczyk and Gynvael Coldwind
    
Cc : libav-stable@libav.org
    
Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DH] libavformat/mov.c

  • FFMPEG video compress command takes time to execute in android [on hold]

    2 juillet 2014, par user3760821

    Video compress using FFMPEG in android takes time while executing command. Is there any way to decrease this time ?.i checked whatsapp which doesn’t take time to compress video.Is there any way to compress video without time delay

    I use ffmpeg library to compress video.i am able to successfully compress video.
    whatapp also doing compress video but it takes hardly one second to compress video while in my case it takes around 15second to convert 7mb video.

  • Absolute timestamp as MP4 start time

    14 juin 2016, par galbarm

    I’d like to store the exact start time a video was recorded on, inside its mp4 container.
    I need a millisecond accuracy (i.e. year,month,day,hour,sec,milli).
    Such an accuracy requires 8 bytes.

    The only standard way I found to store a video creation time is to use the mvhd/tkhd/mdhd boxes creation_time field.
    But according to the base media file format spec, the field only gives a granularity of seconds :

    creation_time is an integer that declares the creation time of this
    track (in seconds since midnight, Jan. 1, 1904, in UTC time)

    In version 0 the field size was 4 bytes, while in version 1 it was increased to 8 bytes. But the description remained unchanged so it can still only reflect a timestamp in up to second granularity. (for maintaining backward compatibility maybe ?)

    So finally, is there a standard way to store a single absolute timestamp with millisecond accuracy in a mp4 container ?
    If the only way to do it, is to store it as a custom metadata, is there an agreed common way to do it according to ?

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