Recherche avancée

Médias (1)

Mot : - Tags -/école

Autres articles (98)

  • 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 (...)

  • 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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (9053)

  • How to speed up ffmpeg when working with multiple files ?

    6 mai 2019, par OBX

    I have 100,000 files which I need to convert from .mp3 to .wav . However, at the moment it takes 1 minute to convert 10 files each of 1 hour duration.

    Here’s what I tried :

    for i in *.mp3
    
do
    
     ffmpeg -i "$i" -acodec pcm_s16le -ac 1 -ar 16000 "stm/$(basename -s .mp3 "$i").wav"
    
done

    Also tried GNU parallel as well, which takes same time as well :

    find ./set/ -name "*.mp3" | parallel 'ffmpeg -i {} -acodec pcm_s16le -ac 1 -ar 16000 {.}.wav'

    Is there a better hack to process the same in less time ?

  • How to change video speed by ffmpeg ?

    17 mai 2019, par Pooja Jadav

    I’m using ffmpeg for video filter.

    But, When I changed video speed, that time I got issue

    • Audio is longer than video :

      ffmpeg -i INPUT.mp4  -filter:v setpts=0.5*PTS -shortest -y -preset ultrafast OUTPUT.mp4

    I want to set audio’s length same as video’s length.

    • shortest = to extend audio streams to the same length as the video stream

    In my case, shortest is not working. Video file and audio file, both are different and then after merging in a video file. Video’s last frame stop and audio is continued working.

  • ffmpeg speed up video - Windows

    19 mars 2019, par Flash Thunder

    In manual it says :

    ffmpeg -i input.mkv -filter:v 'setpts=0.5*PTS' output.mkv

    But when I run :

    ffmpeg -i input.mp4 -filter:v 'setpts=0.5*PTS' speedup.mp4

    I get an error :

    [AVFilterGraph @ 0000000002500600] No such filter: 'setpts=0.5*PTS'
    
Error opening filters!

    Not sure if it means that filter can’t be opened at all or simply this filter is not available.

    How do I run it correctly ? Or maybe my release does not support it, then where can I get the release that would work right ? Win32/x64 binary

Navigation