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Médias (91)

Autres articles (8)

  • D’autres logiciels intéressants

    12 avril 2011, par

    On ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
    La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
    On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
    Videopress
    Site Internet : (...)

  • 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 (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

Sur d’autres sites (3859)

  • FFMPEG, any video to 16:9

    13 décembre 2019, par Universal

    Help me find a command or script that will convert any video to 16:9, h264 and 2500kbps. I have a server where people upload videos of different quality, size and length. It can be either 640x480 or 1216x2160. Ultimately, I need to get any resolution to 16:9 (with black borders, if needs) and bitrate without visible loss of quality, which will be acceptable for online broadcasting.

    I have this command, but it does not check the resolution of the video. And if the video was 560x448 1000kbps and 700mb, then after conversion it will be 1280x720 3000kbps and 1.5gb, that’s not right.

    ffmpeg -i 5.avi -vcodec libx264 -crf 23 -preset veryfast -vf scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2,setsar=1 -tune zerolatency highoutput.mp4

  • any solution to Matlab VideoReader on compressed avi file on Mac ?

    3 décembre 2016, par Peng JL-Zhulin

    I am working on some video gamma correction. And I used some sample avi uncompressed clips from online, everything works just fine.
    But once I try to use our own .avi video 1280x800 20 second about 400mb, Matlab can not read file through ’VideoReader’.

    I’m really sure the problem is that my video is compressed avi. And I have tried the following to solve it :

    1. some say in mac os, download gstreamer 0.10 may help. I did, but problem remained.
    2. i tried to use ffmpeg to convert the compressed avi to uncompressed avi (i dont think i am supposed to do this tho). but the new uncompressed video became a mess.

    So, I was thinking, when working on compressed avi file in MATLAB in mac, is there a godd routine that people follow ?

    Thanks a lot.

  • Got incorrect audio duration from ffmpeg

    8 septembre 2021, par Remeraze

    I used an ffmpeg command to export parts of an audio clip :

    


    ffmpeg -i {path} -acodec copy -ss {start_time} -to {end_time} {output_path}


    


    Unfortunately, this has the side effect of not changing the time duration in the file's details section, making many programs I use think the time of the cut audio files is much more than it really is.

    


    Is there a way to either make ffmpeg change the duration, or find a command in python that can change an audio file's "length" stat so I can do it manually ? I couldn't find any way online.

    


    Thanks.

    


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