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  • 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.
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    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
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  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
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Sur d’autres sites (7028)

  • Give a video rounded transparent edges so that it can be overlayed on another video using FFMPEG

    15 octobre 2020, par Kevin Jasti

    Im trying to overlay a smaller video (200x200)on top of a bigger video (800x800).

    



    I've used the FFMPEG overlay filter to achieve this

    



        ffmpeg -i big.mp4 -vf "movie=small.mkv[clip2]; [in][clip2] overlay=1:5 [out]"  final.mp4


    



    Challenge is that the smaller video needs its edges to be rounded.
I have tried working with alphaextract and alphamerge. The documentation on FFMPEG is sparse and im not sure how to go about it.

    


  • Give a video rounded transparent edges so that it can be overlayed on another video using FFMPEG

    30 septembre 2015, par Kevin Jasti

    Im trying to overlay a smaller video (200x200)on top of a bigger video (800x800).

    I’ve used the FFMPEG overlay filter to achieve this

        ffmpeg -i big.mp4 -vf "movie=small.mkv[clip2]; [in][clip2] overlay=1:5 [out]"  final.mp4

    Challenge is that the smaller video needs its edges to be rounded.
    I have tried working with alphaextract and alphamerge. The documentation on FFMPEG is sparse and im not sure how to go about it.

  • FFMPEG Adding intro video and scaling it to the original video

    10 octobre 2019, par Questions

    I have one intro video of fixed resolution, 1920x1080, and main videos with different resolutions. I could merge the videos using the following command

    ffmpeg -i intro.mp4 -i main.mp4 -i intro.mp4 -filter_complex " \
    
[0:v]scale=640x352,setsar=sar=16/9[intro]; \
    
[1:v]scale=640x352,setsar=sar=16/9[video]; \
    
[2:v]scale=640x352,setsar=sar=16/9[outro]; \
    
[intro][video][outro]concat=n=3[output]; \
    
[0:a][1:a] acrossfade=d=1 [audio]" \
    
-vcodec libx264 -map "[output]" -map "[audio]" "main__.mp4"

    This works perfectly if I specify the scales manually. But this doesn’t work for portrait videos which has resolution of 640x352 with rotation of -90 degrees, when I check them with ffprobe.

    Is there a way to scale the intro video dynamically to match the dimensions of the main video ? It’s fine if the intro video’s aspect ratio is distorted, and just retain the main video’s size.

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