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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

  • Possibilité de déploiement en ferme

    12 avril 2011, par

    MediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
    Cela permet, par exemple : de pouvoir partager les frais de mise en œuvre entre plusieurs projets / individus ; de pouvoir déployer rapidement une multitude de sites uniques ; d’éviter d’avoir à mettre l’ensemble des créations dans un fourre-tout numérique comme c’est le cas pour les grandes plate-formes tout public disséminées sur le (...)

Sur d’autres sites (11072)

  • Generate individual HLS-compatible .ts segments on-demand by downloading as little bytes as possible from a remote input file

    27 janvier 2017, par Romain Cointepas

    I’m trying to generate individual HLS-compatible .ts segments on-demand by downloading/reading as little bytes as possible from a remote input file (hosted on a server supporting byte-ranges requests).

    One of the application for this would be to be able to transcode and play on Apple TV (via Airplay) a remote file that is not Airplay compatible, without having to download the entire file first.

    I am generating the playlist myself, and I have access to the ffprobe results for the remote file (that gives video duration, etc.).

    I have something working that plays via Airplay but with small video and audio glitches between each segments when I use the following command to generate each segment :

    ffmpeg -ss 60 -t 6 -i http://s3.amazonaws.com/misc-12345/avicii.vob -f mpegts -map 0:v:0 -map 0:a:0 -c:v libx264 -bsf:v h264_mp4toannexb -force_key_frames "expr:gte(t,n_forced*6)" -forced-idr 1 -pix_fmt yuv420p -colorspace bt709 -c:a aac -async 1 -preset ultrafast pipe:1

    Note : above command is for segment 11.ts, and in the m3u8 playlist I advertise each segment duration as 6 seconds.

    Here is a Youtube video showing the audio/video glitches between segments :
    https://www.youtube.com/watch?v=0vMwgbSfsu0

    The segment or hls modules of ffmpeg can’t be used because they both generate all the segments at once.

    I’ve been struggling on this for some days now and I would really appreciate some help !

  • how to merge segmented m4s or find the init file with ffmpeg

    17 février 2023, par user3385102

    i have this locked video that i can watch but looking at the responses i see that the video looks like its split into 3 m4s segments

    


    this video seems to be hosted in vimeo but i can't seem to know where to find the init.mp4 nor do i knoew how to merge the segment and turn it into mp4 with ffmpeg

    


    enter image description here

    


    hi , i have this locked video that i can watch but looking at the responses i see that the video looks like its split into 3 m4s segments

    


    this video seems to be hosted in vimeo but i can't seem to know where to find the init.mp4 nor do i knoew how to merge the segment and turn it into mp4 with ffmpeg

    


    enter image description here

    


  • desktop recording - ffmpeg settings for high quality youtube videos

    21 mars 2018, par pb.

    I am trying to record short video of my desktop and upload it to youtube.
    The problem is that every time when I upload it to youtube or even dropbox (as video), the quality is much worse.

    My ffmpeg execution :

    ffmpeg -f x11grab -s 1366x768 -r 30 -i :0.0 -codec:v libx264 -crf 10 -bf 20 -flags +cgop -pix_fmt yuv440p -movflags faststart help.mp4

    based on :

    ffmpeg -i <input file="file" /> -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart .mp4

    which I found here

    Original file (.zip) :
    https://www.dropbox.com/s/xlkr83rkqfxon23/help.mp4.zip?dl=0

    File after upload to youtube :
    https://www.youtube.com/watch?v=ewEUgpXOpmg

    As you can see, I loss quality after upload to youtube.

    Could you help me ?
    How should I choose the appropriate parameters to record and upload high quality video ?

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