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Autres articles (73)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • MediaSPIP en mode privé (Intranet)

    17 septembre 2013, par

    À partir de la version 0.3, un canal de MediaSPIP peut devenir privé, bloqué à toute personne non identifiée grâce au plugin "Intranet/extranet".
    Le plugin Intranet/extranet, lorsqu’il est activé, permet de bloquer l’accès au canal à tout visiteur non identifié, l’empêchant d’accéder au contenu en le redirigeant systématiquement vers le formulaire d’identification.
    Ce système peut être particulièrement utile pour certaines utilisations comme : Atelier de travail avec des enfants dont le contenu ne doit pas (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

Sur d’autres sites (10128)

  • OS X Mavericks broken OpenCV VideoCapture frame numbers ?

    20 novembre 2013, par MattP

    Fresh install of Mavericks, managed to install ffmpeg via homebrew and compile the latest OpenCV at time of writing. My code is written in Python (though this shouldn't affect this issue) and basically navigates a video file using the VideoCapture class with the properties set frame position and get current position.

    The issue is, on prior versions of OS X, various Linux and Windows boxes, this works without issue. Each frame number is of the format i.0, where i is the current frame number (why it is a float anyway is confusing, alas it's how OpenCV gives it back). However, on this setup I get frame progressions like :

    0.0 -> 1.3972597329753 -> 2.999999999 -> 3.9999999 -> 5.0 -> 6.252323552

    This makes using the properties for getting / setting the current frame position impossible and, as one would imagine, causes the automated playback thereof to fail. I can only assume ffmpeg is reporting things odd such that OpenCV is incorrectly calculating frames, but have been unable to rectify this.

    Has anyone any insight into the problem, and/or possible solution ? Thanks.

  • converting a 3d video from side/side to top/bottom

    17 juin 2020, par Ginso

    i have a 3d video where the images are side by side. The problem is, when my projector shows them alternately on full size, the subtitle(which is of course overlayed over the splitimage by the player) get's cut in half and distorted. Since i can't find a way to position the subtitle on one(or both) side, i would like to try to change the video to a top/down format.
Since most of the converter i found aren't free, i was wondering if this could be achieved by ffmpeg.
The resolution of the video is 1920x816. So, i need to cut out the left and the right half(960x816), convert them to 1920x408 and position the left on the top of the right to get 1920x816 again.
I would be ok, with doing this in multiple steps if i can't use a single command

    


  • how to capture screenshot by picture's feature from video [on hold]

    1er juillet 2013, par lazybios

    I have some videos,and I want capture some screenshots from them.But the pictures what I want don't have the regular position in videos.They are located random position.But the pictures have the same characteristic,so can we use the characteristic to capture the picture ?
    I hear about ffmpeg can capture the screenshot from video very well but I am a ffmpeg newbie So I want to ask whether there have some ways to do it by ffmpeg or other tools.
    If you can do that,how to ? Thanks in advance :)

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