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Autres articles (32)

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

  • 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" (...)

  • 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 (...)

Sur d’autres sites (4243)

  • opencv vs live555 vs ffmpeg for decoding rtsp stream with added metadata ?

    17 août 2021, par Peter Parker

    From an IP camera I must decode a h.264 encoded rtsp transport stream containing a program clock reference (PCR), transmitted in the adaptation field of the TS packet. I am using a Windows machine.

    


    This PCR field is transmitted at least every 100ms.

    


    I need to extract this timestamp data for each frame of the video.

    


    I would also like to use OpenCV to process each frame, whilst acknowledging the current time, based on the PCR field value.

    


    OpenCV is not capable of decoding the live rtsp url AND it discard the ancillary data I need.

    


    Do I need to use live555 along with ffmpeg to decode the stream ? Or is it possible to extract this data using ffmpeg and opencv libraries alone ?

    


    Suppose I embed a SMPTE/MISB compliant Microsecond Timestamp (KLV metadata packet) in the VANC space after achieving this.

    


    Will the same strategy work ?

    


    Thanks in advance for any pointers.

    


  • Anomalie #3988 : meta cache_signature trop restrictive

    4 septembre 2017, par Emmanuel Dreyfus

    cedric - a écrit :

    Le cas qui peut être problématique est celui de la base répliquée
    entre plusieurs serveurs, mais là on entre dans un autre sujet et
    pour qu’il y ait collision cela supposerait que le dossier tmp/cache
    est commun aux serveurs.

    On se heurte au problème dans ce contexte, mais chaque serveur
    a son dossier cache. La base de donnée est partagée, sauf certaines
    tables qui restent locales (jobs ; syndic, urls, transactions, visites, referers).

    Comme chaque machine a son cache, elle tente d’écrire la meta cache_signature avec une valeur qui rentre en conflit avec celle des autres, d’où l’idée d’avoir un nom de meta différente pour chaque cache.

  • When using MacOS (iMac Intel) can I activate integrated graphics, but have ffmpeg/Video Toolbox use discrete graphics ?

    10 juin 2023, par Jann

    I have a 2019 Retina iMac with both integrated graphics (Intel HD Graphics CFL) and the Radeon Pro 560X. I never use this machine for anything except encoding videos as it is so old - and a desktop. So it generally sits on my desk handing ripping my Blurays and encoding them using a self-compiled version of ffmpeg.

    


    I use the video-toolbox hardware acceleration w/ffmpeg.

    


    If I tell the iMac to boot using integrated graphics, will ffmepg via video-toolbox use the Radeon card ? I ask cos when I boot using the Radeon card, then start an encode, screen sharing becomes unresponsive as the GPU is being used heavily by ffmpeg and the Radeon has issues driving the screen, doing acceleration on screen sharing AND encoding w/ffmpeg.

    


    TIA

    


    Jann

    


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