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Autres articles (98)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

Sur d’autres sites (9634)

  • Application slower on jar than eclipse building with ant

    28 novembre 2019, par Caio Farias

    Hello guys, i’m facing a silly problem.

    I’m using the javacv library to capture streaming videos. On the eclipse i run my application and the delay time it is only the response of rtsp. But when i generate a jar file(using ant, a build.xml) and run on terminal (sudo java -jar app.jar) takes a 4 min to start grabbing frames.

    I run the flag verbose on java(java -verbose - jar) and the delay time its because his loading the libs ffmpegs(so files).

    Anyone had any idea how to improve and minimize the time ?

  • FFmpeg drawbox with fill color

    24 septembre 2024, par CoXier

    From doc, I use below command to draw a box and fill it with color.

    



     ffmpeg -i output.mp4 -vf "drawbox=x=0:y=570:w=in_w:h=40:color=pink@0.5:t=fill" output_1.mp4


    



    I got an error.

    



    


    [Parsed_drawbox_0 @ 0x7fa5c6f05840] [Eval @ 0x7ffee6f23bc0] Undefined constant or missing '(' in 'fill'
 Last message repeated 5 times
 [Parsed_drawbox_0 @ 0x7fa5c6f05840] Error when evaluating the expression 'fill'.
 [Parsed_drawbox_0 @ 0x7fa5c6f05840] Failed to configure input pad on Parsed_drawbox_0

    


    


  • ffmpeg convert white color to alpha

    11 janvier 2021, par tony

    Hello i took a picture with my camera :a drawing of a square frame on a white paper ; i'm trying to convert the white to transparent and keep the black color frame.

    


    So i started making 1 palette with only 2 colors to make the colors uniform and 1 palette to add the transparency

    


    ffmpeg -f lavfi -i "color=color=white:100x100" -f lavfi -i "color=color=black:100x100" -filter_complex "[0][1]hstack" -frames:v 1 blackwhite.png`
ffmpeg -i blackwhite.png -filter_complex "[0]split[a][b];[a]palettegen[pal1];[b]palettegen=reserve_transparent=on:transparency_color=white[pal2]" -map [pal1] palette1.png -map [pal2] palette2.png


    


    then i mapped the image png of the frame to convert the white to transparent and overlayed the result to a red background

    


    ffmpeg -i image.png -i palette1.png -i palette2.png -i background.png -filter_complex "[0:v][1:v]paletteuse=dither=bayer[a],[a]split[a1][a2];[a1][2:v]paletteuse=alpha_threshold=128[c];[3:v][c]overlay[d]" -map [a2] -c:v png out.png -map [d] -c:v png out1.png


    


    the png mapped to the first palette (as a test) comes as it should be, pure black and white,the second comes with no transparency at all and covers the background
what am i doing wrong ?

    


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