Recherche avancée

Médias (0)

Mot : - Tags -/formulaire

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (51)

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (8998)

  • FFmpeg : Encode x264 with AMD GPU on Windows ?

    20 septembre 2023, par ZeroTek

    I am currently trying to record a Video on my Lenovo Laptop with its Built-In Webcam using FFmpeg on Windows 10. One of my goals is to keep the CPU Usage as low as possible, that's why i want to push the h264 encoding to the GPU. 
Now it gets a bit tricky here with my Laptop. Because it uses two GPUs. The first GPU is a Intel HD 5500 Graphics Unit as Part of the CPU. This one is most likly used for non-demanding Applications like office etc. to save Energy. The other one is a AMD R5 M330 that will be used for graphic intense applications like gaming.

    



    Currently, i am using the following command to encode the Webcam Stream on the Intel HD GPU :

    



    ffmpeg -f dshow -vcodec mjpeg -video_size 1280x720 -framerate 30 video="Lenovo EasyCamera":audio="Mikrofon (Realtek High Definition Audio)" -c:v h264_qsv -g 60 -q 28 -look_ahead 0 -preset:v faster -c:a aac -q:a 0.6 -r 30 output.mp4


    



    This does work so far but it seems this GPU does not have enough Power to keep up with the framerate on higher bitrates or with a high amount of i-frames. The Video starts lacking and skipping frames. If i am using CPU encoding everything works smooth.

    



    Now that my Laptop got that second AMD GPU with a lot more Power it would be a nice Try to encode on that one, but i can't find any information about how to encode on AMD Hardware on Windows 10. So my question is : How does the ffmpeg command look like to use AMD Hardware for h264 encoding ?

    


  • Video encoder with low CPU usage on Atom 230

    8 février 2016, par Alexandr Zarubkin

    What are my options for screen capturing on Atom 230 CPU that will result in reasonably low CPU usage ?
    I’m using ffmpeg and would like to leave CPU power to other applications while recording a screencast without lags.
    Maybe there’s hardware support for certain codec ?

  • libavutil : Add av_clip_intp2

    20 février 2015, par Peter Meerwald
    libavutil : Add av_clip_intp2

    there already is a function, av_clip_uintp2() that clips a signed integer
    
to an unsigned power-of-two range, i.e. 0,2^p-1
    

    this patch adds a function av_clip_intp2() that clips a signed integer
    
to a signed power-of-two range, i.e. -(2^p),(2^p-1)
    

    the new function can be used as a special case for av_clip(), e.g.
    
av_clip(x, -8192, 8191) can be rewritten as av_clip_intp2(x, 13)
    

    there are ARM instructions, usat and ssat resp., which map nicely to these
    
functions (see next patch)
    

    Signed-off-by : Peter Meerwald <pmeerw@pmeerw.net>
    
Signed-off-by : Luca Barbato <lu_zero@gentoo.org>
    • [DBH] libavutil/common.h

Navigation