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    This page lists some websites based on MediaSPIP.

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    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
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  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
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Sur d’autres sites (9345)

  • ffmpeg rotate overlay image background transparent on video [closed]

    5 mai 2021, par Abhi Panchal

    'ffmpeg -y -i video.mp4 -i bells_sticker.png -filter_complex "[1:v]rotate='90*PI/180:c=black@0'[rotate] ;[rotate]scale=238:238[b] ;[0][b] overlay=100:50:enable='between(t,0,20)'" -codec:a copy StickerWithVideo.mp4'

    


    I get black background behind the input image

    


    try also this for remove background

    


    c=0x00000000
c=none

    


    Outout

    


    Original Sticker Image

    


    i'm say thanks in advance

    


  • Converting png images series to webm with transparent white background from Daz3d

    25 août 2015, par James

    I’m trying to make a webm video with a transparent background from a Daz3D model.
    My process is export png image series with transparent background from Daz3D, use ffmpeg to convert png series to webm video.
    This was working well in Daz3D 4.6.

    But in Daz3D 4.8 the exported background is black instead of white, so when converted to webm is ok on Chrome as has the transparency, but on Firefox is black and has a halo (as Firefox does not support transparency so displays background).

    So I’m looking for a solution with Daz3D, or tools like ImageMagik.
    I almost got it with ImageMagik,

    convert -alpha extract *.png mask.png
    mogrify -flatten talk*.png
    for /f %x in ('dir /s /b blink*.png') do @composite -compose CopyOpacity mask-0.png %x %x

    But for some reason the final webm has a white background not transparent ...
    Some more info here,

    http://www.daz3d.com/forums/discussion/61237/daz3d-4-8-png-background-is-black

    and here,

    http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=28214

    >
    Doh, okay I figured it out. My images were good, but I somehow have two different versions of ffmpeg on my computer and was using the wrong one that doesn’t seem to support transparency.

    Now it is working.

    My only issue is the last shell line,

    for /f %x in (’dir /s /b blink*.png’) do @composite -compose CopyOpacity mask-0.png %x %x

    This only uses mask-0.png, instead of mask-1 for blink01.png, mask-2 for blink02.png etc.

  • FFMPEG Overlay Not Found For Putting Watermark in Video

    6 mars 2021, par Devin Dixon

    I am trying to put a logo in an rtmp stream using ffmpeg. My version of ffmpeg is ffmpeg version 4.3.1 Currently in my complex filter I have :

    


    ffmpeg  -re -i 'video.mp4' -filter_complex "tpad=start_duration=10:stop_duration=15:start_mode=add:color=black:stop_mode=add"  -f flv rtmp://example.com/a/stream


    


    And it works ! But when I add :overlay=0:0 at the end :

    


    ffmpeg  -re -i 'video.mp4'  -i image.jpeg -filter_complex "tpad=start_duration=10:stop_duration=15:start_mode=add:color=black:stop_mode=add:overlay=0:0"  -f flv rtmp://example.com/a/stream


    


    I get the errors :

    


    [Parsed_tpad_0 @ 0x555bc5d99f40] Option 'overlay' not found
[AVFilterGraph @ 0x555bc5e7a980] Error initializing filter 'tpad' with args 'start_duration=10:stop_duration=15:start_mode=add:color=black:stop_mode=add:overlay=0:0'
Error initializing complex filters.
Option not found


    


    What might I be doing wrong ?