Advanced search

Medias (91)

Other articles (57)

  • MediaSPIP 0.1 Beta version

    25 April 2011, by

    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 (...)

  • MediaSPIP version 0.1 Beta

    16 April 2011, by

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Amélioration de la version de base

    13 September 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

On other websites (8372)

  • How do I add a delay to a live stream sourced from webcam (v4l2) with FFMPEG?

    20 November 2018, by David

    How can I use FFMPEG to add a delay to a stream being sent from a (v4l2) webcam to a media server?

    The use case here is something like a security camera where I want to be able to stream video to a server when something is detected in the video. The easiest way to ensure the event of interest is captured on the video is to use FFMPEG to stream from the camera to a virtual loopback device with an added delay. That loopback device can then be used to initiate live streaming when an even of interest occurs.

    In GStreamer, I would accomplish a delay of this sort with the queue element’s min-threshold-time parameter. For example the following (much-simplified) example pipeline adds a 2 second delay to the output coming from a v4l2 webcam before displaying it:

    gst-launch-1.0 v4l2src device=/dev/video1 ! queue max-size-buffers=0 max-size-time=0 max-size-bytes=0 min-threshold-time=2000000000 ! xvimagesink

    How do I accomplish the same thing with FFMPEG? There are some technical challenges that prevent us from using GStreamer for this.

    I have investigated the itsoffset option for this, but as far as I can tell it is only usable for already-recorded files, and it is not clear what a good alternative would be.

  • Orientation issue with mobile records

    11 May 2012, by Kim Egede Jakobsen

    When I convert .mov files from iPhone 4 and .3gp from Android with FFMPEG.
    I need to rotate the video 90 degress, but iPhone 4s needs 180 degress...

    Is there any way to fix this?

  • Orientation issue with mobile recordings

    18 May 2012, by Kim Egede Jakobsen

    When I convert .mov files from iPhone 4 and .3gp from Android with FFMPEG.
    I need to rotate the video 90 degress, but iPhone 4s needs 180 degress...

    Is there any way to fix this?

Browsing