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Autres articles (98)

  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (9943)

  • OpenCV3 returning float FRAME_COUNT

    15 mars 2016, par mprat

    I am using OpenCV3 on OSX with Python 2.7 bindings. However, when I try to read the frame count of my video (a .mp4 video), it returns a float - I am expecting an int. Do I need to compile OpenCV3 with some special flags ? Am I missing some codecs ?

    import cv2
    
vid = cv2.VideoCapture("vid.mp4")
    
print vid.get(cv2.CAP_PROP_FRAME_WIDTH)

    And it returns a float.

    Installation details :

    • ffmpeg : brew install ffmpeg --with-dcadec --with-openh264 --with-openjpeg --with-openssl --with-tools --with-x265  --with-zimg --with-libvidstab --with-libvpx
    • opencv3 : brew install opencv3 --with-ffmpeg --with-contrib

  • How do I chromakey an enclosed shape (or background) in ffmpeg ? [closed]

    31 janvier, par JustAnotherCodemonkey

    I have an animation with a fully contiguous 0xFFFFFF white background I want to remove. The issue is that the foreground contains the same exact color. These parts are all completely enclosed and contained within at least several pixels of a different shade at its weakest.

    


    All I need is to be able to essentially, for each frame, make all pixels that are white and connected by white to 0,0, transparent. Chromakey and its siblings remove those bits from the foreground as well which is unacceptable and backgroundkey, well you can imagine how that goes.

    


    I'm somewhat proficient with ffmpeg and can handle severe filter shenanigans, I've just thought about this for like 10 min and decided I seemingly don't have the creativity to piece together a clever solution. I just don't want to have to spend some time sitting down and manually writing out a program to do this frame-by-frame.

    


  • FFmpeg installation requiring python uninstallation on Mac

    19 avril 2019, par momo

    Did brew install ffmpeg, installs some packages and gives this error :

    Error : python is already installed from !

    Please brew uninstall python first."

    I have python3.6.5 installed via brew, for using Tensorflow etc. No other python version is installed via brew right now. Why is this error coming up ? What version does FFmpeg need ?

    Earlier I actually uninstalled python and that broke my system in many frustrating ways. I had to delete everything and start over. What is a safer way to get this working ?

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