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Médias (16)

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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

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  • How to publish your plugin or theme on the Piwik Marketplace – Introducing the Piwik Platform

    25 septembre 2014, par Thomas Steur — Community, Development

    This is the next post of our blog series where we introduce the capabilities of the Piwik platform. Over the last weeks we have already introduced you to some of the basics on how to create plugins and themes. This time you’ll learn how to publish a plugin or theme on the Piwik Marketplace to share it with all Piwik users.

    What is the Piwik Marketplace ?

    The Marketplace is a showcase for all plugins and themes that can be used in Piwik. You can browse them either on a standalone website or in Piwik itself by going to Settings => Marketplace. There you can install and update them with just one click. Easy as that ! While some of those plugins are provided by Piwik or Piwik PRO most of them are created and maintained by our community. Everyone is very welcome to distribute plugins or themes on the Marketplace.

    Prerequisites

    To publish your plugin on the Marketplace you simply need to meet these requirements :

    • The plugin name is not already taken by another plugin
    • The code of the plugin is hosted in a public GitHub repository
    • The GitHub service “Piwik plugins” for this repository is enabled (Repository Settings => Webhooks & Services => Add Service)
    • Push permission for this repository
    • The plugin is free (as in not paid)
    • The license must be compatible with the GNU General Public License v3 or any later version

    There is also list of Rules for plugins.

    Best practices

    Before actually distributing your plugin we recommend to follow a couple of best practices to make sure your plugin looks good on the Marketplace and provides useful information for your future users. If you have used the console to generate a plugin the needed files were already created for you.

    Provide a good description

    Make sure there is a file named README.md in the root of your plugin. When preparing your plugin for the Marketplace we will search for four sections in this file : Description, FAQ, Changelog and Support. Each of those is optional but it is good practice to provide at least a section Description and Support by prefixing them with ## . Any content of your readme outside of those sections will not be displayed on the Marketplace.

    # Piwik Plugin Name

    ## Description

    Add your plugin description here.

    ## Support

    Please direct any feedback to hello@piwik.org.
    If you experience any issues feel free to file an issue at https://github.com/piwik/piwik/issues .

    A good example can be seen in the README.md of the CustomAlerts plugin and the related CustomAlerts plugin page.

    Provide screenshots

    This will improve your appearance in the Marketplace a lot and users will be more likely install your plugin. It is as easy as placing “png” or “jpg” files in a folder named screenshots. The filename of each image will be shown in the UI with underscores replaced by a whitespace. This way you can provide a nice description. Have a look at the CustomAlerts plugin to see how it works.

    Provide contact details

    Your contact details are specified in the plugin.json file of your plugin root folder. Providing at least one author and a link to your homepage is required. If you do not have a website you can use a link to your GitHub profile. This helps your users contact you in case they want to thank you for your great work or if they have any problem with it. An example plugin.json looks like this :

    {
       "name": "MyPluginName",
       "homepage": "http://piwik.org",
       "authors": [
           {
               "name": "Piwik",
               "email": "hello@piwik.org",
               "homepage": "http://piwik.org"
           }
       ],
       "support": {
         "email": "hello@piwik.org",
         "issues": "https://github.com/piwik/piwik/issues",
         "forum": "http://forum.piwik.org",
         "wiki": "https://github.com/piwik/piwik/wiki",
         "irc": "#piwik-dev"
       }
    }

    Choose a license

    Choosing the right license that works best for you and your users is important. To distribute a plugin via the Piwik Marketplace the license must be compatible with the GNU General Public License v3 or any later version. If you do not specify a license anywhere in your plugin, it is assumed your plugin uses GPLv3 or later. The license must be specified in the plugin.json file using the property license :

    {
       "name": "MyPluginName",
       "license": "GPL v3+"
    }

    Provide donation links

    You can define a donation link or email for PayPal, Flattr and Bitcoin in the plugin.json file. Users that love your work will then be able to donate you money directly from the plugin page.

    {
       "name": "MyPluginName"
       "donate": {
           "paypal": "sponsor@piwik.org",
           "flattr": "https://flattr.com/profile/piwik",
           "bitcoin": "1234567890"
       }
    }

    How to publish the first version of your plugin

    We are trying to make it as easy as possible for you to publish your plugin on the Marketplace. That’s why we don’t require any logins or packaging. To publish your plugin you only have to create a new tag of your plugin and within a minute your plugin will be ready to be installed on hundreds of thousands of Piwik installations.

    To tag your plugin you can use one of the following two suggestions :

    Using the command line

    git tag 0.1.0 && git push --tags

    Where “0.1.0” is the name of the tag. While you can use any tag name it is best practice to use the current version number as defined in the plugin.json file.

    Using GitHub UI

    To tag a new version via GitHub click on Releases => Draft a new release.

    Now you can enter a tag name (version) and press “Publish release” as shown in this screen. That’s it !

    How to provide an update for your plugin

    To provide an update you only have to increase the version number in the file plugin.json and create another tag as explained in the previous section. Your new Plugin update will be visible on the Marketplace within a minute or so. It might take a bit longer until the update appears in Piwik itself as each Piwik server only checks for updates every few hours.

    For a complete list of information go to our Distributing Your Plugin guide in the Piwik Developer Zone.

    If you have any feedback regarding our APIs or our guides in the Developer Zone feel free to let us know.

  • Revision 7428cebe4f : Rework forward txfm/quantization skip system in RTC coding mode This commit all

    21 novembre 2014, par Jingning Han

    Changed Paths :
     Modify /vp9/encoder/vp9_encodemb.c


     Modify /vp9/encoder/vp9_pickmode.c



    Rework forward txfm/quantization skip system in RTC coding mode

    This commit allows more aggressive decision to skip forward
    transform and quantization for luma component in RTC coding mode.
    The chroma components remains going through the normal coding
    routine, since they are not included in the non-RD mode search
    process.

    It reduces the runtime cost by 2% - 10%. In speed -6,
    vidyo1 1000 kbps
    16576 b/f, 40.281 dB, 8402 ms -> 16576 b/f, 40.323 dB, 7764 ms

    nik720p 1000 kbps
    33337 b/f, 38.622 dB, 7473 ms -> 33299 b/f, 38.660 dB, 7314 ms

    dark720p 1000 kbps
    33330 b/f, 39.785 dB, 13505 ms -> 33325 b/f, 39.714 dB, 13105 ms

    The compression performance of speed -6 is improved by 0.44% in
    PSNR and 1.31% in SSIM.

    Change-Id : Iae9e3738de6255babea734e5897f29118bebc6d7

  • Revision 4e81ab82d5 : Fix to reduce block artifacts from vp8 temporal denoiser. If the denoiser filte

    22 mai 2014, par Marco Paniconi

    Changed Paths :
     Modify /vp8/encoder/denoising.c


     Modify /vp8/encoder/x86/denoising_sse2.c



    Fix to reduce block artifacts from vp8 temporal denoiser.

    If the denoiser filter causes too big a change in the absolute pixel difference
    (between source and denoised signal), the block is not denoised, which can cause
    visual block artifacts. This change applies a second adjustment to the temporal
    filter
    to effectively allow for a (weaker) denoising for such blocks (which can keep
    the absolute differnence within the tolerance range in most cases).
    This helps to reduce some of the block artifacts from the denoising.
    The additional cost of re-applying the filter to this set of blocks is low,
    as the percentage of blocks per frame (with too big a change in absolute pixel
    difference)
    is typically small, 2-5%.

    Change-Id : Id9b56e59e33f3c22e79d2f89f763bdde246fdf3f