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Autres articles (23)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • 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" (...)

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

Sur d’autres sites (4700)

  • Referencing original Height and Width of input

    10 septembre 2022, par Sark

    By combining scaling and cropping, the example script below scales/crops 30 pixels from each side of the input with the minimum loss of image.

    


    In this example, 720 (original height) must be explicitly stated for the crop. If I use ih-60 instead of 720-60, ih will reference the height after the scale filter has been applied, not the original height of the source.

    


    Is it possible to ignore the scale filter (and any other filtering) when referencing height and width.

    


        ffmpeg -i 1.mp4 -filter_complex [0]scale=iw-60:-1[S];[S]crop=iw:720-60 out.mp4


    


  • How to Add Spacing Between Bars in showfreqs Visualization in FFmpeg

    21 janvier, par Jad Alaouie

    I'm trying to create a video visualization using FFmpeg that shows an audio waveform with bars representing frequency data using the showfreqs filter. However, I would like to add some space between the bars in the bar chart-style visualization, but the showfreqs filter doesn't seem to provide a built-in option for controlling the spacing.

    


    filter_complex = (
        # Create bar chart style visualization with reduced overlap for spacing
        "[0:a]aformat=channel_layouts=mono," +
        "showfreqs=mode=bar:ascale=log:fscale=log:win_size=900:size=1920x300:" +  # Adjust win_size for overall effect
        "colors=white:win_func=blackman:overlap=0.05[vis];" +  # Reduce overlap
        # Insert space by scaling and resizing the visualization
        "[1][vis]overlay=(W-w)/2:(H-h)/2-150:format=auto[bg_with_wave];" +
        # Add play button
        "[2]scale={0}:{1}[play_button];" +
        # Combine everything, with added space between bars by manipulating output size
        "[bg_with_wave][play_button]overlay=(W-w)/2:(H-h)/2:format=auto[v];" +
        "[v]scale=1.2*iw:1.2*ih[v_rescaled]"  # Increase space by scaling video output
    ).format(play_button_width, play_button_height)


    


  • build : consistent spacing between lists (cosmetics)

    5 septembre 2017, par Clément Bœsch
    build : consistent spacing between lists (cosmetics)
    • [DH] configure

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