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Autres articles (101)

  • 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 (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • 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

Sur d’autres sites (9958)

  • compare a png logo with video except png's transparent background pixels

    24 décembre 2022, par Thm Lee

    I want to find frames with the logo image from video, and to concat theses frames without commercials for getting ad-free video.
I tried this first by using ffmpeg & jpg logo image.

    


    ffmpeg -i input.mp4 -loop 1 -i logo.jpg -an -filter_complex crop=47:25:639:24,"blend=difference:shortest=1,blackframe=95:60" -f null -


    


    And it works, but in the case by case, less accurate with blackframe setting number.
So, for getting more accuracy I tried png logo image with transeparent background.

    


    ffmpeg -i input.mp4 -loop 1 -i logo.png -an -filter_complex crop=47:25:639:24,"blend=difference:shortest=1,blackframe=95:60" -f null -


    


    But on the contrary of my idea, the results came out worse than jpg logo. It seems that the cause is why ffmpeg compare the png's transparent background part pixels too with video.

    


    Is there a way to compare png logo with video except png logo's transparent part pixels ?

    


    I'd appreciate your advice, thank you.

    


  • +new logo sprite

    24 avril 2011, par Scott Schiller

    + demo/_image/logo-sprite.png +new logo sprite

  • Batch overlay logo to directory of video files

    30 mars 2016, par AHC

    I am using this command in windows 8 to overlay a logo (mywatermark.png , 400x200) to a video file :

    ffmpeg -i E:\source\video01.mp4 -i E:\logo\mywatermark.png -filter_complex "[1:v]scale=100:50 [ovrl], [0:v][ovrl
    
]overlay=W-w-10:H-h-10[watermark]" -map "[watermark]" -map 0:a -codec:v libx264 -preset veryfast -crf 18 -codec:a copy E:\output\video01.mp4

    as you can see I am first rescaling my logo to 100:50 pixels, and then overlaying it to the bottom right corner.
    This is working for me.

    My question is :

    How can I repeat this to all of the videos in the same directory, adding the same logo to all ?

    I want to save the output video files same as the original, of course in different folder. However, not to forget that my source video files are of different quality and resolution.
    How can I add a parameter to the command line to proportionnally scale the logo in regard to the video file resolution ?

    I am afraid that if I don’t do this, the logo will be small in one file and bigger in another.
    thanks a lot

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