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  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (12001)

  • Node.js asynchronous video conversion slow

    9 décembre 2016, par lukstei

    I wrote a little website/service, which can download a video from a website (currently Youtube) and converts it on the fly to an mp3 file and sends this file back as the response.

    For example, you when you request http://localhost:8000/v=http ://www.youtube.com/watch?v=HhoewflkQu0, then it will download this video and response the audio layer encoded in MP3.

    This all works very well, my problem is that this is very slow and I can’t figure out why.

    Simplified the script behaves like this :

    Download the video and write it to the stdin of ffmpeg, and the stdout goes to the response.
    Video (MP4, FLV) -> FFMPEG -> MP3

    I used curl to figure out how fast the script is :

    $ curl http://localhost:8000/v=http://www.youtube.com/watch?v=HhoewflkQu0

    I get only about 5-10k.

    So why is this so slow ?

    1. The server, from which I am downloading the video is slow.
    2. The conversion is slow (because of a slow CPU).
    3. The data transfer between node.js -> FFMPEG is slow.

    I tried to download the video in a normal download manager, and i got about 320k, which is my normal download speed, so the first point isn’t the bottleneck.

    To point 2 and 3, I tried to write a local file to the stdin, and I got about 600k so that isn’t it either.

    So why is my script so slow, and what can I do to make it faster ?

    https://gist.github.com/1304637

    Thanks in advance.

  • encoding a video for looping ?

    24 janvier 2013, par bennettk

    This is somewhat related to Looping a video with AVFoundation AVPlayer but that question is answered. What I'm trying to achieve is seamless looping using an AVPlayer. There is a noticeable stutter between loops using h264-encoded videos* that has gotten worse for some reason with the update to iOS 5. Could this have something to do with the way the videos are encoded rather than the AVPlayer ? The looping is triggered by a playerItemDidReachEnd notification as described in the link above.

    Thanks.

    * here's the ffmpeg command we're using to encode the videos, if that helps :

    ffmpeg -i -y -sameq -vcodec libx264 -vpre hq -crf 20 -an

    (yes, the files don't have sound (yet) so the -an is intentional.)

  • How To Convert MP4 Video File into FLV Format Using FFMPEG

    23 septembre 2015, par nipul_tech

    i have to Convert MP4 Video File into FLV Format Using FFMPEG which i received from different mobile device. i found most of the stuff to convert flv video into mp4 and all.

    can any body help me out to convert mp4 format into flv using FFMPEG. i am using windows 7 64bit machine.

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