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Autres articles (19)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • 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 (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

Sur d’autres sites (3613)

  • What should I do if the video is broken on a black screen when encoding with FFmpeg(h264) ?

    19 novembre 2018, par wowi77

    The MOV is broken when H.264 is encoded as below image. Can I encode it without breaking ?

    Encoding options :

    ffmpeg -y -i "background.mp4" -s "160x64" -c:v libx264 -vprofile baseline -level 3 -q:v 0 -mbtree 1 -r 30 -pix_fmt yuv420p -an -t "0:00:15.000000" "sample.mp4"

    Screen capture

  • chroma key my command for filter white background works but filter white and black ?

    21 décembre 2018, par userpov
    ffmpeg    -i  bakground.avi   -i overlay.avi    -filter_complex       "[1:v]chromakey=0xFFFFFF:0.02:0[keyed];       [0:v][keyed]overlay[out]"    -map "[out]"    output.avi

    this command filter white and black

    I need filter only white color

    please help me

  • ffmpeg overlay filter adds black background for PNG with transparency

    30 janvier 2019, par Pavel S.

    I’m trying to programmatically add PNG overlay over h264 video.

    Even though PNG image has alpha channel, after I apply filter, on a resulting video this image has black background instead of transparent one.
    Here’s the filter :

    "[in][in2]overlay=15:15[out]"

    I’m using openh264 to decode/encode video, so the pixel format of resulting video is YUV420P.
    I’ve tried to explicitly define format in filter :

    [in][in2]overlay=15:15,format=rgba,format=yuv420p[out];

    But no change.
    ffmpeg : 3.4 ;
    openh264 : Git (i.e. 1.9.0)

    Thanks in advance.

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