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Autres articles (70)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • 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 (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (7995)

  • Anomalie #4364 : MYSQL 5.7 - Erreurs avec les dates à 0

    2 août 2019, par cedric -

    Mais le problème principal c’est qu’on utilise aussi des dates floues de type 2019-06-00 ou meme 2019-00-00 quand le jour ou le mois ne sont pas connus.
    Ce n’est pas accepté non plus par le mode strict de mySQL mais pour le coup c’est bien plus compliqué à gérer pour ne pas perdre la feature
    Chez moi j’ai changé le sql mode par défaut dans le my.ini (ou équivalent mariaDB)

  • ffmpeg - color-grading video material AND display original source as picture-in-picture, using -filter_complex

    5 octobre 2019, par raven

    this is my first post on this forum, so please be gentle in case I accidentally do trip over any forum rules that I would not know of yet :).

    I would like to apply some color-grading to underwater GoPro footage. To quicker gauge the effect of my color settings (trial-and-error, as of yet), would like to see the original input video stream as a PIP (e.g., scaled down to 50% or even 30%), in the bottom-right corner of the converted output movie.

    I have one input movie that is going to be color graded. The PIP should use the original as an input, just a scaled-down version of it.

    I would like to use ffmpeg’s "-filter_complex" option to do the PIP, but all examples I can find on "-filter_complex" would use two already existing movies. Instead, I would like to make the color-corrected stream an on-the-fly input to "-filter_complex", which then renders the PIP.

    Is that doable, all in one go ?

    Both the individual snippets below work fine, I now would like to combine these and skip the creation of an intermediate color-graded TMP output which then gets combined, with the original, in a final PIP creation process.
    Your help combining these two separate steps into one single "-filter_complex" action is greatly appreciated !

    Thanks in advance,
    raven.

    [existing code snippets (M$ batch files)]
    

    
::declarations/defines::
    
set "INPUT="
    
set "TMP="
    
set "OUTPUT="
    
set "FFMPG="
    
set "QU=9" :: quality settings
    

    
set "CONV='"0 -1 0 -1 5 -1 0 -1 0:0 -1 0 -1 5 -1 0 -1 0:0 -1 0 -1 5 -1 
    
0 -1 0:0 -1 0 -1 5 -1 0 -1 0'"" :: sharpening convolution filter
    

    
::color-grading part::
    
%FFMPG% -i %INPUT% -vf convolution=%CONV%,colorbalance=rs=%rs%:gs=%gs%:bs=%bs%:rm=%rm%:gm=%gm%:bm=%bm%:rh=%rh%:gh=%gh%:bh=%bh% -q:v %QU% -codec:v mpeg4 %TMP%
    

    
::PIP part::
    
%FFMPG% -i %TMP% -i %INPUT% -filter_complex "[1]scale=iw/3:ih/3 
    
[pip]; [0][pip] overlay=main_w-overlay_w-10:main_h-overlay_h-10" -q:v 
    
%QU% -codec:v mpeg4 %OUTPUT%
    

    
[/existing code]

  • Revision 185 : Edited wiki page through web user interface.

    1er avril 2010, par marc.noirot

    Changed Paths :
     Modify /wiki/Streaming.wiki



    Edited wiki page through web user interface.

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