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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

  • 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" (...)

Sur d’autres sites (8162)

  • ffmpeg generated video with silent audio has different stream lengths

    18 septembre 2015, par JennHarper

    I am trying to generate a video clip of a single image and add a silent audio track for concatenating with other video files.
    I can successfully create the mp4 video with the desired image and audio track BUT, according to mediaInfo, the length of the video stream and the length of the audio stream are different. They are off by up to 60 ms. As I plan to concatenate several of these image clips and other video clips, I don’t want the error to accumulate. Any thoughts or suggestions for maintaining perfect video/audio sync ?

    Here are the ffmpeg commands that I am using :

    C :\FFmpeg\bin\ffmpeg.exe -loop 1 -i myImage.jpg -codec:v libx264 -t 7 -profile:v high -preset slow -r 25 -b:v 500k -maxrate 500k -vf scale=1280:720 -y videoStreamOnly.mp4

    C :\FFmpeg\bin\ffmpeg.exe -f lavfi -i anullsrc=r=48000 -i videoStreamOnly.mp4 -shortest -c:v copy -c:a aac -strict experimental -y videoWithSilentAudioStream.mp4

  • Generated ffmpeg video from images has the wrong orientation

    14 septembre 2020, par asored

    I create a video from image files in Flutter (with ffmpeg) with this code :

    


    -r $settings_fps -i $tempPath/img%04d.jpg -vcodec libx264 -y -an -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -pix_fmt yuv420p $tempPath/$videoFileName.mp4

    


    Then I add audio to the video file :

    


    -i ${finalSong.path} -i $videoPath -c:v copy -c:a aac -shortest $tempPath/$newVideoFileName.mp4

    


    It is possible that ffmpeg uses the AspectRatio of the first image ? And that ffmpeg detects automatically if it has a landscape or a portrait orientation ?

    


    Actually if I have images made in portrait orientation this is the video output :

    


    enter image description here

    


    I know that I can rotate the video. But users have the possibility to add images in Portrait or Landscape orientation..so I don´t want manually rotate this video.

    


    Do you have another solution for this ? Thank you !

    


  • mpegvideo : set reference/pict_type on generated reference frames

    28 novembre 2013, par Anton Khirnov
    mpegvideo : set reference/pict_type on generated reference frames

    Otherwise the generic code will unref them, which can then result in
    
last_picture_ptr == current_picture_ptr, which causes deadlocks at least
    
in rv40.
    

    Found-by : Mateusz "j00ru" Jurczyk and Gynvael Coldwind
    
CC:libav-stable@libav.org
    • [DBH] libavcodec/mpegvideo.c

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