Recherche avancée

Médias (91)

Autres articles (54)

  • Encodage et transformation en formats lisibles sur Internet

    10 avril 2011

    MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
    Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
    Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • 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 (...)

Sur d’autres sites (4292)

  • Compile ffmpeg for android statically [duplicate]

    1er novembre 2013, par Gonzalo Solera

    This question already has an answer here :

    I have been using an old version of ffmpeg compiled statically that I downloaded from Internet. I need to compile my own STATIC ffmpeg with the h264 encoder for android, but I´m a bit noob in this and I´m not sure in how to do that. I have read some tutorials but they weren´t so useful... I would be very grateful if somebody could explain me step by step how to do that. Thanks !!

  • Raw Audio Issue / Settings [on hold]

    31 octobre 2016, par GumboMcGee

    I have a raw audio file that i am trying to convert to WAV, I have run it though ffmpeg several times with different arguments (see below), and i have got it to a point where it sounds right, except for weird jumping / skipping.

    I have looked around on the internet for a fair while and cannot find any information that might help me figure out the issue,

    Hopefully someone here will be able to help me out in finding the fix.

    I have included a link to a section of the output WAV file from ffmpeg, i advise you skip to about the 2 minute mark, as it has the best example of sounding like an actual music but still does the skipping.

    ffmpeg command for WAV output :

    ffmpeg -f s16le -ar 22050 -ac 2 -i music.raw output.wav

    Link to the output WAV file

  • Resizing 360 stereoscopic video with FFMPEG

    13 mars 2018, par Miriam Tschanen

    I’m trying to prepare a 360 stereoscopic video from our VR app for streaming. We’d like to offer the video in different resolutions to accomodate varying internet speeds. The original file is 3840x2160 and 463MB large.

    I tried using the naive FFMPEG command :
    ffmpeg -i video_3840.mp4 -vf scale=2560:1440 video_2560.mp4

    However, this seems to remove the stereoscopic / 360 properties of the video, at any rate the Windows video player no longer lets me pan around the view and the file size is down to 74MB, which seems a bit extreme.

    Does anyone know which other flags I should set ? Note that I have absolutely no clue about filming or video formats, so I don’t even know what the original file is encoded as. Ideally I’d like to copy over as many settings as possible. The only thing I want to change is the resolution.

    Any help would be greatly appreciated.

Navigation