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Autres articles (47)

  • 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 (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

Sur d’autres sites (5672)

  • downloading and concatenating parts of videos from youtube

    17 octobre 2018, par amit

    I’m trying to create a video quiz, that will contain small parts of other videos, concatenated together (with the purpose, that people will identify from where these short snips are taken from).

    For this purpose I created a file that contain the URL of the video, the starting time of the "snip", and its length. for example :

    https://www.youtube.com/watch?v=5-j6LLkpQYY   00:00   01:00
    
https://www.youtube.com/watch?v=b-DqO_D1g1g   14:44   01:20
    
https://www.youtube.com/watch?v=DPAgWKseVhg   12:53   01:00

    Meaning that the first part should take the video from the first URL from its beginning and last for a minute, the second part should be taken from the second URL starting from 14:44 (minutes:seconds) and last one minute and 20 seconds and so forth.

    Then all these parts should be concatenated to a single video.

    I’m trying to write a script (I use ubuntu and fluent in several scripting languages) that does that, and I tried to use youtube-dl command line package and ffmpeg, but I couldn’t find the right options to achieve what I need.

    Any suggestions will be appreciated.

  • FFMPEG Command to format videos to TikTok's specs ?

    8 juin 2021, par Christopher Sparks

    I'm trying upload a video exported by windows video editor to tiktok. It's a .mp4 file, and while it does upload, it isn't "TikTok'd", meaning, it only takes up the middle of screen. I was wondering what the ffmpeg command would be to output a video to TikToks specs.

    


    Here's how it currently looks.

    


    TikTok bad format

    


    And here's how I want it to look.

    


    enter image description here

    


  • Use palette when using FFMpeg overlay

    16 avril 2017, par nbrogi

    I’m trying to add an overlay to an animated GIF with FFMpeg.

    It works, but the quality is pretty dismal. Basically, I’m unable to use the palette that I generate, and that leads to a lot of dither. The main GIF (meaning, not the overlay) is also very low resolution.

    I would also like to apply opacity to the watermark (and at one point that worked, too), but that’s a plus.

    This is what I have :

    ffmpeg -v error -i image.gif -vf 'palettegen' palette.png -y;
    
ffmpeg -v error -i image.gif -i watermark.gif -i palette.png -filter_complex '[1:v]scale=80:30, [0:v]overlay=(main_w-overlay_w) - main_h/30:(main_h-overlay_h) - main_h/30, paletteuse' -an image-watermark.gif -y

    At one point I was able to use the palette for the main GIF, so its quality improved. However, the watermark looked pretty bad. It’s pretty obvious that I have to do the overlay, and then the palette, so that the palette include the colors present in the watermark. However, I have no idea how to do that.

    Can someone point me in the right direction ?

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