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Autres articles (106)

  • 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 (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Pas question de marché, de cloud etc...

    10 avril 2011

    Le vocabulaire utilisé sur ce site essaie d’éviter toute référence à la mode qui fleurit allègrement
    sur le web 2.0 et dans les entreprises qui en vivent.
    Vous êtes donc invité à bannir l’utilisation des termes "Brand", "Cloud", "Marché" etc...
    Notre motivation est avant tout de créer un outil simple, accessible à pour tout le monde, favorisant
    le partage de créations sur Internet et permettant aux auteurs de garder une autonomie optimale.
    Aucun "contrat Gold ou Premium" n’est donc prévu, aucun (...)

Sur d’autres sites (12864)

  • How to speed up video and its timestamp to shorten video length, but represent time as it was recorded ?

    7 janvier 2021, par Gonzalo Aspee

    I have a video recorded at 5 fps that I want to speed up to 30 fps to shorten it. That is simple enough as :

    


    ffmpeg -i input.mp4 -r 30 -vf "setpts=0.16666*PTS" output.mp4


    


    But when I try to add a timestamp to it with :

    


    ffmpeg -i input.mp4 -r 30 -vf "setpts=0.16666*PTS, drawtext=text='%{pts\:localtime\:1610043985\:%Y\-%m\-%d %H\\\\\:%M\\\\\:%S.}%{eif\:mod(n,30)\:d}'" output.mp4


    


    The timestamp does not longer represents the time as it was recorded (it should run faster now)

    


    How to achieve this ?

    


  • How to speed up a video in order to shorten its length and embed a timestamp to represent time as it was recorded ?

    8 janvier 2021, par Gonzalo Aspee

    I have a video recorded at 5 fps that I want to speed up to 30 fps to shorten it. That is simple enough as :

    


    ffmpeg -i input.mp4 -r 30 -vf "setpts=(1/6)*PTS" output.mp4


    


    But when I try to add a timestamp to it with :

    


    ffmpeg -i input.mp4 -r 30 -vf "setpts=(1/6)*PTS, drawtext=text='%{pts\:localtime\:1610043985\:%Y\-%m\-%d %H\\\\\:%M\\\\\:%S.}%{eif\:mod(n,30)\:d}'" output.mp4


    


    The timestamp does not longer represents the time as it was recorded (it should run faster now)

    


    What would be the simplest way to achieve this on a single pass ?

    


  • How to speed up video conversion

    3 février 2021, par Arheisel

    I'm currently working in a project that involves converting large series of .jpg (>6000) into video format. These frames (320x240) are stored in folders at a rate of 2.5fps. Generating a couple of folders every hour that need to be converted ASAP.

    


    For now I've tried copying the folder to a ram disk and using avconv which takes about a minute.

    


    Here is my command :

    


    avconv -threads auto -y -r 2.51 -i %03d-capture.jpg -s 320x240 -r 25 video.mpeg


    


      

    • Could ffmpeg work faster ?

      • 


    • Is there a way to speed it up ?

      • 


    • Which video format takes less time to convert to ?

      • 


    


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