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Autres articles (98)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

  • 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 (9823)

  • How to build SDL libraries for Android

    4 mars 2013, par Harish

    I am planning to use SDL (Simple DirectMedia Layer) to display video output in my Android application that uses ffmpeg libraries. I have downloaded the sources from http://www.libsdl.org/download-1.2.php and built (./configure, make & make install) on my Ubuntu. But when I use these .so files the Android ndk-build complains that "Could not read symbols. File in wrong Format".

    Can I use the .so files that are built on Ubuntu on Android or do I need to build the SDL for Android in a different way ?

  • ffmpeg how to extract X frames every Y interval from url efficiently

    13 décembre 2018, par Luay Gharzeddine

    I’m trying to gather data for a datascience project, and am downloading frames from online videos using ffmpeg. I want to download a subset of the frames in the video, without needing to be precise about which, the only requirement is that they are reasonably spaced apart from each other.

    I have tried

    ffmpeg -i "http://www.somevideo.com" -r 1 -f image2 "image%06d.jpg"

    and

    ffmpeg -i "http://www.somevideo.com" -vf fps=1 "image%06d.jpg"

    and eventually found the following method

    ffmpeg -ss offset1 -i "http://www.somevideo.com" -ss offset2 -i "http://www.somevideo.com" -map 0:v -frames:v 10 -start_number 0 "image%06d.jpg" -map 1:v -frames:v 10 -start_number 10 "image%06d.jpg"

    and all work, but are slow. I have found a hack where I run the following command multiple times, at different offsets, and it seems to be the fastest (where each ffmpeg command is run in parallel multithreaded)

    ffmpeg -ss offset -i "http://www.somevideo.com" -vframes frames_per_fragment -an -start_number start_index "image%06d.jpg"

    this about 25% faster than the previous method

    Is there a faster way to do this ? The issue is that downloading over a network is a bottleneck, so I want to download only the frames I need. I’m looking to download videos/frames in bulk, so any speed improvement would be helpful.

  • Converting youtube videos to mp3 in golang using a ffmpeg binary

    19 août 2015, par Bera

    With golang it’s possible to extract a mp3 file from a given youtube video url ?

    Is needed to download a video in mp4 format and then extract the audio in the mp3 format.

    Would be better to use a lib like youtube-dl to download the video in mp4 and after invoke a ffmpeg binary to extract the audio or there is a easy way using only go libraries or binds ?

    thanks for your help.

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