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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (14351)

  • How to trim multiple videos and position them to specific position using -filter_complex ?

    16 décembre 2023, par Pavlo Holotiuk

    How do I mix several videos and have them not overlap each other ?
I need to use -filter_complex as I cram many more commands there and seems weird how when I trim video its frames remain and overlap with the other video. I also use tpad to paint the video black where it supposed to be cut but it just makes black images to overlap with other videos instead.

    


    How do I trim and position videos with mix and make sure their frames do not overlap in result ?
Here's the version vithout tpad

    


    ./ffmpeg.exe -i input1.mp4 -i input2.mp4 -filter_complex "[0]trim=start=0:end=5[t0];[1]trim=start=5:end=10[t1];[t0][t1]mix=inputs=2" ./output.mp4

    


    It produces such overlapping frames
enter image description here

    


    When adding tpad overlapping changes to mix of frame and black image

    


    ./ffmpeg.exe -i input1.mp4 -i input2.mp4 -filter_complex "[0]trim=start=0:end=5[t0];[1]trim=start=5:end=10,setpts=PTS-5/TB,tpad=start_duration=5:start_mode=add:color=black@0x00[t1];[t0][t1]mix=inputs=2" ./output.mp4

    


    enter image description here

    


    The alpha in tpad doesn't seem to do anything either.

    


  • How to convert 4:3 video to 16:9 without stretching the original in ffmpeg

    5 novembre 2016, par carvil

    I would like to convert some 4:3 videos that I took on an iPhone to 16:9, by adding black bars to both sides instead of stretching the video.

    I tried something like this without success :

    ffmpeg -y -i input.mov -aspect 1.7777777777777777 -s 640x360 output.mp4

    Even though the output has the correct size, the video is stretched, which is not what I want.

    How can I keep the proportion between the width and height of the original video, and add extra black bars to both sides to avoid stretching ?

    This would be similar to how YouTube does it when uploading a video from an iPhone directly to YouTube.

    Thanks !

  • ffmpeg : Combine png frames with transparent background into a video and merge with an image

    15 avril 2023, par andyts93

    I'm trying to combine multiple png frames into a video with ffmpeg, keeping the transparency, to then combine it with an image.
The png video comes with a black background so when i try to combine it with an image, the image is completely overlayed by the black background, how can I keep the transparency ?

    


    Here's the command to combine the PNGs :

    


    ffmpeg -y -i src/tmp/%d.png -c:v libx264 -vf fps=25 -pix_fmt yuva420p land.mov

    


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