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Autres articles (92)

  • 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 (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

Sur d’autres sites (13576)

  • Where can I find a C/C++ FFmpeg extensive tutorial ?

    5 janvier 2013, par fabio

    I want to use ffmpeg (in its c library form) to split a video in more parts, recompose them and encode the final result. Something basic. But it's very difficult to find documentation or hints about this. Where should I look/ask for advice ?

  • FFMPEG zoompan filter cut short my video and slowed it down [on hold]

    9 décembre 2018, par Ewan Sou

    I am using FFMPEG (version 4.0.2) to zoompan my video. My code is as below

    ffmpeg -y -i input.mp4 -loop 1 -i overlay.png -ss 0 -t 10 -filter_complex "[0:v]scale=iw+iw:ih+ih, zoompan=z='if(lte(pzoom,1.0),1.6,max(1.001,pzoom-0.004))':d=1:x='iw/2-(iw/zoom/2)':y='0':s=720x720, setsar=1 [v0];[1:v]crop=720:720,fade=t=in:st=0:d=1,fade=t=out:st=3:d=1[v1];[v0][v1] overlay [v]" -map "[v]" -f mp4 -preset ultrafast -y output.mp4

    Essentially, what this code should do is slowly pan out from the center of my video, with a logo (overlay.png) fading in and out.

    This input.mp4 is 10 seconds. With the above code, the final video duration is 10 seconds still. But its not the full footage, it is cut short and compensated with slow motion to make it 10 seconds still...

    I need the final video to not be cut off at all. It should be the full footage and no slow motion effect.

    Anyone has any ideas what I am doing wrong ?

    Input video is at : https://instantly.sg/photobooth/input.mp4

    Overlay is at : here

    Thanks in advance !

  • Add multiple timecodes to single audio file (.mkv ?) resulting from concatenating several (timecode-based) audio files

    6 juin 2020, par user3497017

    I first converted two .WAV files into .MKV files inserting timecode for each of this file. Then I concatenated these two .MKV files as inputs (each .MKV including one timecode inside). However timecodes were not maintained in the final output.MKV. I tried :

    



     1. ffmpeg -f concat -i mylist.txt -c copy output.mkv  
 2. mkvmerge -o output.mkv 1.mkv + 2.mkv


    



    with mylist.txt containing :

    



    file '1.mkv'
file '2.mkv'


    



    But the final file output.mkv resulting from such a concatenation has lost timecodes in case 1. In case 2, there is only one time code that has been preserved (from input 2.mkv) at the end. According to mediaInfo command line. I was expecting 2 times codes issued from 1.mkv and from 2.mkv. But is it the right approach ? (Is it even do-able ?)

    



    To summarize, my goal is to insert multiple time codes along with / inside a single audio file (.WAV, or .MKV, or whatever). Here is a sreenshot that technically depicts my purpose enter image description here

    


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