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Autres articles (11)

  • 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 (...)

  • 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 (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

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  • Is there a FFMPEG C# Wrapper with multiple filters ?

    7 juin 2021, par AfricanMamba

    Does anyone happen to know if FFMPEG or any other sources has a wrapper that I can use in C#/.NET to run certain filters ? Filters that I am trying to run on different audio files in my program include silenceremove, silencedetect, volumedetect, and etc. I want to avoid using just the .exe file that I already have when implementing this in my program.

    


    I have looked through several forums and online resources and found one called MediaTookKit, but it lacks the filters that I am attempting to use. If anyone knows of one that already exists or can provide me with steps to make my own wrapper using certain FFMPEG filters, it would greatly help.

    


  • ffmpeg - scaling and stacking 2 videos ?

    25 mai 2016, par Gambit2007

    I have 2 inputs and i want to scale, crop and put them on top of each other at the same time. My command should look something like this :

    ffmpeg -i input1 -i input2 -filter_complex crop=10000:5000:1000:0,scale=3840:1536 vstack output.mp4

    I know i need to use chaining (?) but i tried to look it up online and couldn’t really get it to work.

    So what would be the correct syntax the scale and crop both inputs and then put them vertically on top of each other while using ’-filter_complex’ only once ?

    Thanks !

  • Convert png to mp4

    9 septembre 2018, par user3073118

    I have a lot of png files that I want to convert to mp4 in R.

    I used to convert it to .gif using ImageMagick, then converting it using a free online website from .gif to MP4.

    library(magick)
    
system(command = "convert -delay 70 '/Users/Desktop/figures/*.png' '/Users/Desktop/figures/animation.gif'")

    But the current file size is too big, such that even converting it to .gif takes hours.

    Is there a way I can convert it directly from png to mp4 in R ?

    I tried to look up ffmpeg but I have a MAC and installing it is a little confusing...

    Thanks !

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