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Autres articles (58)

  • 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

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (10846)

  • What is the scaling algorithm of the FFmpeg scale filter ?

    7 août 2021, par Atrin

    I have upscaled and downscaled an image with following command.

    


    ffmpeg -s:v 1280:720 -r 25 -i input.yuv -vf scale=1920x1080 -c:v rawvideo -pix_fmt yuv420p out.yuv

    


    I'm wondering what kind of scaling algorithm is used to do down scaling (bilinear, bicubic,...) ?

    


    and how can I change the filter or add it if there is no filter in this command ?

    


  • ffmpeg use setdar in filter

    27 janvier 2019, par Marius Pricker

    As described already here ffpeg I get an error when using this command

    ffmpeg -i 234627426842_converted.mp4 -i 1548625936003_converted.mp4 -i 1548626656821_converted.mp4 -i 1548625467753_converted.mp4 -c:a aac -strict -2 -filter_complex [0:v:0][0:a:0][1:v:0][1:a:0][2:v:0][2:a:0][3:v:0][3:a:0]concat=n=4:v=1:a=1[v][a] -map [v] -map [a] ready.mp4

    in order to concentrate 4 different videos. However, I cant add setdar=16/9 to the filter as said in the accepted answer of the previously mentioned question because my filter looks like this :

    [0:v:0][0:a:0][1:v:0][1:a:0][2:v:0][2:a:0][3:v:0][3:a:0]concat=n=4:v=1:a=1[v][a]

    How can I add setdar=16/9 to every video stream using this layout ? (Im new to ffmpeg)

  • fate/filter-audio : Don't use pcm output for channelsplit test

    19 mars 2024, par Andreas Rheinhardt
    fate/filter-audio : Don't use pcm output for channelsplit test

    This test muxes two streams into a single pcm file, although
    
the two streams are of course not recoverable from the output
    
(unless one has extra information). So use the streamhash muxer
    
instead (which also provides coverage for it ; it was surprisingly
    
unused in FATE so far). This is in preparation for actually
    
enforcing a limit of one stream for the PCM muxers.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] tests/fate/filter-audio.mak
    • [DH] tests/ref/fate/filter-channelsplit

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