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  • 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

  • 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 (...)

  • Création définitive du canal

    12 mars 2010, par

    Lorsque votre demande est validée, vous pouvez alors procéder à la création proprement dite du canal. Chaque canal est un site à part entière placé sous votre responsabilité. Les administrateurs de la plateforme n’y ont aucun accès.
    A la validation, vous recevez un email vous invitant donc à créer votre canal.
    Pour ce faire il vous suffit de vous rendre à son adresse, dans notre exemple "http://votre_sous_domaine.mediaspip.net".
    A ce moment là un mot de passe vous est demandé, il vous suffit d’y (...)

Sur d’autres sites (10908)

  • FFmpeg 3.0 vs 3.1.1 decoding speed is different for 1920x1280 (3.1.1 is slow)

    20 août 2016, par Hwangho Kim

    I’m now making video player with ffmpeg.

    I’ve been using ffmpeg 3.0 and I upgrade it to 3.1.1.

    For 1920x1280 video (30fps), 3.1.1 decoding speed is slow so video stopped frequently for local video but 3.0 has no problem.

    I’m now using same build script for those.https://github.com/kewlbear/FFmpeg-iOS-build-script

    What’s the problem ?

  • lavc/cbrt_tablegen : speed up tablegen

    11 janvier 2016, par Ganesh Ajjanagadde
    lavc/cbrt_tablegen : speed up tablegen

    This exploits an approach based on the sieve of Eratosthenes, a popular
    
method for generating prime numbers.
    

    Tables are identical to previous ones.
    

    Tested with FATE with/without —enable-hardcoded-tables.
    

    Sample benchmark (Haswell, GNU/Linux+gcc) :
    
prev :
    
7860100 decicycles in cbrt_tableinit,       1 runs,      0 skips
    
7777490 decicycles in cbrt_tableinit,       2 runs,      0 skips
    
[...]
    
7582339 decicycles in cbrt_tableinit,     256 runs,      0 skips
    
7563556 decicycles in cbrt_tableinit,     512 runs,      0 skips
    

    new :
    
2099480 decicycles in cbrt_tableinit,       1 runs,      0 skips
    
2044470 decicycles in cbrt_tableinit,       2 runs,      0 skips
    
[...]
    
1796544 decicycles in cbrt_tableinit,     256 runs,      0 skips
    
1791631 decicycles in cbrt_tableinit,     512 runs,      0 skips
    

    Both small and large run count given as this is called once so small run
    
count may give a better picture, small numbers are fairly consistent,
    
and there is a consistent downward trend from small to large runs,
    
at which point it stabilizes to a new value.
    

    Reviewed-by : Michael Niedermayer <michael@niedermayer.cc>
    
Signed-off-by : Ganesh Ajjanagadde <gajjanagadde@gmail.com>
    • [DH] libavcodec/cbrt_tablegen.h

  • Speed change command fails when audio stream is not present in video - ffmpeg

    26 juillet 2016, par lalith

    I am trying to change speed of the video that does not contain audio stream via below command

    String[]{"ffmpeg", "-y", "-i", orginalFile, "-threads", "5", "-preset", "ultrafast", "-strict", "experimental", "-filter_complex", "[0:v]setpts=0.50*PTS[v];[0:a]atempo=2.0[a]", "-map", "[v]", "-map", "[a]", "-b", "2097k", "-ab", "48000", "-ac", "2", "-ar", "22050", "-vcodec", "mpeg4", destinationFile};

    Command fails stating that video does not have audio stream. So, do I need to check whether audio stream is present in the video or is there something I can do in this scenario ?

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