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Autres articles (91)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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 (...)

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

Sur d’autres sites (11113)

  • How to create videos with small file size but large resolution ?

    13 février 2017, par Gregory Magarshak

    Is there a programmatic way to create videos that capture, essentially, a powerpoint presentation, that would be not much larger than the audio + screenshots of the powerpoint itself ?

    I want to make software that produces videos with the full resolution of a powerpoint on a large screen, and with a person speaking over it and wvwn doodling. Kind of like "bcontext" software. And then I want to export videos for youtube and other places to be hosted. But I want them to be SMALL. So they can be downloaded by people with slow connections eg in India.

    What factors can affect video size and how can i take advantage of the relative "stillness" of most pixels at most times to make the compression preserve the full sharpness and yet take advantage of the lack of visual changes ? What software do you recommend ?

  • How to create thumbnails of videos with Meteor, CollectionFS, & FFMPEG

    29 juin 2017, par Jared Martin

    I’m using Meteor with CollectionFS to store videos. I need a transform to create thumbnails of my videos.

    Videos = new FS.Collection("videos", {
    
  stores: [
    
    new FS.Store.FileSystem("thumbs", { 
    
      transformWrite: function(fileObj, readStream, writeStream) {
    
        // What goes here?
    
      }
    
    }),
    
    new FS.Store.FileSystem("videos"),
    
  ],
    
});

    I’ve worked out how to do this with ffmpeg :

    ffmpeg -i video.mp4 -vf  "thumbnail,scale=640:360" -frames:v 1 thumb.png

    But I’m not sure how to do this with the readStream I’m given and output the writeStream.

    Here’s an example of how it is done with images using GraphicsMagick :

    Images = new FS.Collection("images", {
    
  stores: [
    
    new FS.Store.FileSystem("thumbs", { 
    
      transformWrite: function(fileObj, readStream, writeStream) {
    
        // Transform the image into a 10x10px thumbnail
    
        gm(readStream, fileObj.name()).resize('10', '10').stream().pipe(writeStream);
    
      }
    
    }),
    
    new FS.Store.FileSystem("images"),
    
  ],
    
});

    Although the samples use the local filesystem, Ill be using cvs:dropbox, so you can’t rely on the file being there locally.

  • How to create thumbnails of videos with Meteor, CollectionFS, & FFMPEG

    24 juin 2015, par Jared Martin

    I’m using Meteor with CollectionFS to store videos. I need a transform to create thumbnails of my videos.

    Videos = new FS.Collection("videos", {
    
  stores: [
    
    new FS.Store.FileSystem("thumbs", { 
    
      transformWrite: function(fileObj, readStream, writeStream) {
    
        // What goes here?
    
      }
    
    }),
    
    new FS.Store.FileSystem("videos"),
    
  ],
    
});

    I’ve worked out how to do this with ffmpeg :

    ffmpeg -i video.mp4 -vf  "thumbnail,scale=640:360" -frames:v 1 thumb.png

    But I’m not sure how to do this with the readStream I’m given and output the writeStream.

    Here’s an example of how it is done with images using GraphicsMagick :

    Images = new FS.Collection("images", {
    
  stores: [
    
    new FS.Store.FileSystem("thumbs", { 
    
      transformWrite: function(fileObj, readStream, writeStream) {
    
        // Transform the image into a 10x10px thumbnail
    
        gm(readStream, fileObj.name()).resize('10', '10').stream().pipe(writeStream);
    
      }
    
    }),
    
    new FS.Store.FileSystem("images"),
    
  ],
    
});

    Although the samples use the local filesystem, Ill be using cvs:dropbox, so you can’t rely on the file being there locally.

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