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  • 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 (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • 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 (...)

Sur d’autres sites (7602)

  • How to preserve transparency when using png to make video with ffmpeg

    27 septembre 2016, par Ryan James

    I have a series of png’s that have an alpha channel as a background. Each file is named like file_name.0001.png and so on, in subsequent order. I’d like to join these png’s into a video with ffmpeg and maintain the transparency.

    I’ve tried a couple of things but I suspect I’m running into a codec issue. When I run ffmpeg, the video is created but the background is black.

    If it makes a difference, I’m wanting to use the video in Microsoft Powerpoint. Thanks !

    Edit
    The suggested duplicate is very close to what I was looking for, thank you ! The only reason it’s not a complete solution is none of the options presented in the other thread work well with Microsoft Powerpoint. None of the codecs used in the suggested solution play well with Powerpoint. This is not the fault of ffmpeg, but of Powerpoint.

    Though ffmpeg doesn’t seem to be able to do what I need, I found that imagemagick did the trick. I was able to create a gif from the images and the alpha channel was preserved. I used the following :

    convert -dispose 3 -coalesce images.*.png gif_file_name.gif

    The -dispose 3 is critical as it tells imagemagick to clear the image prior to overlay, otherwise, you can see each image overlaid on each other (since they have the transparent background).

  • Error "sys/videoio.h - not found" OpenCV 3.1.0

    9 juin 2020, par Jefferson Rodriguez

    
I using Elementary OS and I'm trying to install OpenCV 3.1.0, I follow the instructions of http://docs.opencv.org/3.0-beta/doc/tutorials/introduction/linux_install/linux_install.html
    
Also, I have installed libav 11.7 and ffmpeg 3.1.3
    
but, after cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
I get :
    
— Looking for linux/videodev.h
    
— Looking for linux/videodev.h - found
    
— Looking for linux/videodev2.h
    
— Looking for linux/videodev2.h - found
    
— Looking for sys/videoio.h
    
— Looking for sys/videoio.h - not found
    
— Looking for libavformat/avformat.h
    
— Looking for libavformat/avformat.h - found
    
— Looking for ffmpeg/avformat.h
    
— Looking for ffmpeg/avformat.h - not found
    
— checking for module 'libgphoto2'
    
— package 'libgphoto2' not found
    
And after make,
    
I get :
    &#xA;../../lib/libopencv_videoio.so.3.1.0 : referencia a av_frame_alloc&#x27; sin definir <br />&#xA;../../lib/libopencv_videoio.so.3.1.0: referencia aav_frame_free' sin definir
    &#xA;collect2 : error : ld returned 1 exit status
    &#xA;make[2] : * [bin/opencv_test_video] Error 1
    &#xA;make[1] : *     [modules/video/CMakeFiles/opencv_test_video.dir/all] Error 2&#xA;

    &#xA;&#xA;

    someone who can help me ?

    &#xA;

  • Error "sys/videoio.h - not found" OpenCV 3.1.0

    22 mars 2017, par Jefferson Rodriguez

    I using Elementary OS and I’m trying to install OpenCV 3.1.0, I follow the instructions of http://docs.opencv.org/3.0-beta/doc/tutorials/introduction/linux_install/linux_install.html
    Also, I have installed libav 11.7 and ffmpeg 3.1.3
    but, after cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
    I get :

    — Looking for linux/videodev.h

    — Looking for linux/videodev.h - found

    — Looking for linux/videodev2.h

    — Looking for linux/videodev2.h - found

    — Looking for sys/videoio.h

    — Looking for sys/videoio.h - not found

    — Looking for libavformat/avformat.h

    — Looking for libavformat/avformat.h - found

    — Looking for ffmpeg/avformat.h

    — Looking for ffmpeg/avformat.h - not found

    — checking for module ’libgphoto2’

    — package ’libgphoto2’ not found
    And after make,
    I get :
    ../../lib/libopencv_videoio.so.3.1.0 : referencia a

    av_frame_alloc' sin definir <br />
    ../../lib/libopencv_videoio.so.3.1.0: referencia a

    av_frame_free’ sin definir
    collect2 : error : ld returned 1 exit status
    make[2] : * [bin/opencv_test_video] Error 1
    make[1] : *     [modules/video/CMakeFiles/opencv_test_video.dir/all] Error 2

    someone who can help me ?

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