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Autres articles (84)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • 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" (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (8289)

  • Opencv not importing on jupyter notebook

    12 janvier 2023, par Junghoon Kim

    I'm trying to "import cv2" from jupyter notebook and I keep getting this error.

    


    


    ImportError : dlopen(/Users/ju/opt/anaconda3/lib/python3.8/site-packages/cv2/cv2.abi3.so, 2) : Symbol not found : _VTRegisterSupplementalVideoDecoderIfAvailable
Referenced from : /Users/ju/opt/anaconda3/lib/python3.8/site-packages/cv2/.dylibs/libavcodec.59.37.100.dylib (which was built for Mac OS X 11.0)
Expected in : /System/Library/Frameworks/VideoToolbox.framework/Versions/A/VideoToolbox
in /Users/ju/opt/anaconda3/lib/python3.8/site-packages/cv2/.dylibs/libavcodec.59.37.100.dylib

    


    


    I've been trying to solve this issue for a couple days and I can't seem to find the issue here. I looked at different posts, articles and videos but I still can't solve this issue.

    


  • How to change encoding bitrate adaptively to bandwidth during live rtmp publish using ffmpeg ?

    9 mars 2019, par Jaehong Kim

    I am currently using ffmpeg to read the recorded video by native frame rate and publish the stream to nginx rtmp server.

    The command looks something like this

    ffmpeg -re -i [video file] \
    
-vcodec libx264 -r 60 -g 120 -keyint_min 120 -vb [bitrate]\
    
-f flv -y rtmp://[server url];

    I want to change the encoding bitrate of the software encoder manually,
    according to the bandwidth fluctuation. For example,

    If 2kbps< estimated_bandwidth <4kbps,  
    
     change ffmpeg bitrate to 3kbps, 1280x720 size

    However, I couldn’t find any framework or codec that supports dynamic bitrate change during encoding.

    Is there a way that I could achieve this ?
    Last thing that I want to do is to implement the codec myself because I have no background.

  • How make video out of images on the fly when using Qt with C++ on Android & iOS

    3 août 2017, par Programist

    I am using Qt 5.9 on Android & iOS. I need to create an .mp4 video out of an std::vector of images that I have on main memory.

    First basic question :
    Which is the correct multimedia framework to choose which works both on android & iOS and the one that can work with Qt & C++ ?

    I learnt that gstreamer, ffmpeg & libvnc are some options. Firstly I want to know which is the correct option.

    Qt has an example here which uses ffmpeg but it looks quite naive since it saves all images on to the disk & then creates a video out of it.

    Second question :
    Is it possible to do the same on the fly by taking the images to encode from the main memory ?

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