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  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

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  • How to use water mask with FFmpeg version 0.6.5 [closed]

    23 juin 2013, par monkey_boys

    FFmpeg version 0.6.5

    How to watermask i am using old version ?

    How to use water mask with FFmpeg version 0.6.5

  • avcodec/vvc/refs : Use unsigned mask

    7 juillet 2024, par Michael Niedermayer
    avcodec/vvc/refs : Use unsigned mask

    Not a bugfix, but might fix CID1604361 Overflowed constant
    

    Sponsored-by : Sovereign Tech Fund
    
Reviewed-by : Nuo Mi <nuomi2021@gmail.com>
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavcodec/vvc/refs.c

  • imagemagick gradient mask file creation

    6 avril 2016, par lang2

    I’m playing with this creative script here : http://www.fmwconcepts.com/imagemagick/transitions/. The plan is to mimic what happens with the script with ffmpeg and generate video with transition effects between pictures. My current understanding is this :

    1. I have two pictures A and B.
    2. I need in between a couple of pictures (say 15) that are partially A and partially B.
    3. To do that I use the composite -compose src-over A.jpg B.jpg mask-n.jpg out.jpg command.
    4. During the process, the mask-n.jpg gets generated automatically that gradually change from all black to all white.
    5. Depends on the mathematically equations, the way the transition effect looks is different.

    In one of the example, Fred the author gave this :

    convert -size 128x128 gradient: maskfile.jpg

    This will generate a image like this :
    enter image description here

    This is partially black and partially white. For the transition to work, I’ll need an all white one and an all black one and a couple of others in between. What’s the magical command to do that ?

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