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Autres articles (60)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • 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

Sur d’autres sites (10066)

  • Streaming WebM files on unsupported browsers (Safari, IE, etc)

    14 juillet 2015, par Swaathi K

    I’d like to stream WebM videos to browsers that don’t support it (like Safari/IE). I have no problem in converting the video to a supportable format (like MP4), but the encoding should be on-demand, that is, the server should stream the MP4 content while it’s being converted from Web (WebM -> MP4). I’ve seen a few solutions like Dash and Stream-M, but all these seem to do it the other way around (MP4 -> WebM). Is there a solution that already exists for my problem ? Or do I need to build my own hack ? And also is this solution the only way to stream WebM content onto Safari/IE ?

  • Adaptive video encoding with alpha channel

    14 septembre 2020, par Peter Bartha

    I've created a WebM media file with transparent background in Adobe After Effects. Due to Widevine specs, I have to encode this file to an adaptive format for playing.

    


    With the following command I've successfully created a webm file with DASH :

    


    ffmpeg -i example.webm -c:v libvpx-vp9 -s 200x113 -b:v 250k -keyint_min 150 -g 150 -tile-columns 4 -frame-parallel 1 -an -f webm -dash 1 adaptive.webm


    


    Unfortunately, the resulting video has lost the alpha channel completely.

    


    Is it possible to encode a video to an adaptive format without losing the alpha channel ?

    


  • open source CMS and server for video streaming platform

    30 mai 2016, par Infinite

    I have to propose a platform that allows streaming video services employing the MPEEG-DASH standard. This platform blocks must be implemented with open source tools. I proposed FFmpeg to encode and MP4Box/GPAC tool for encryption and packaging. For the DRM case my propose is to use Widewine (I didn’t find any other open source tool) which is compatible with dash.js (the player proposed by me), it can be integrated to Chrome and according to CastLabs it’s also compatible with MP4Box. So, I have to select an open source CMS, and at the same time I need it to be compatible with dash.js. I read that it’s possible to add any JavaScript to these CMS, that it’s only necessary to create some modules to do so. I’d like to know which one of the following CMS you suggest me : MediaDrop, Drupal or Wordpress.
    I also have some doubts about the server. I know that in order to offer this service it only takes a traditional HTTP server. In a first moment I chose Nginx over Apache because the latter presents some problems associated to performance (the server will receive a large amount of simultaneous requests), nevertheless, I discarded Nginx (Nginx-rtmp module) due to its constraints : it’s only for live streaming (I need the service to be offered also on demand) and the inputs must be RTMP. I found something about Nginx-based VOD packager, do you know if this one can be used as a server to offer live and on demand streaming service ?

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