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  • 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 (...)

  • Qualité du média après traitement

    21 juin 2013, par

    Le bon réglage du logiciel qui traite les média est important pour un équilibre entre les partis ( bande passante de l’hébergeur, qualité du média pour le rédacteur et le visiteur, accessibilité pour le visiteur ). Comment régler la qualité de son média ?
    Plus la qualité du média est importante, plus la bande passante sera utilisée. Le visiteur avec une connexion internet à petit débit devra attendre plus longtemps. Inversement plus, la qualité du média est pauvre et donc le média devient dégradé voire (...)

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  • How to merge mp4 audio dash fragment with another audio

    19 décembre 2016, par mosvov

    I have 1 audio file from dash stream

     Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file_191282-377206_header.mp4':   Metadata:
    

    
 major_brand     : iso6
    
 minor_version   : 1
    
 compatible_brands: mp42dashmsdhmsixiso6avc1isom
    
 creation_time   : 2016-04-29T11:04:26.000000Z   Duration: 00:00:30.02, start: 14.997333, bitrate: 49 kb/s
    
 Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 48 kb/s (default)

    Also in exiftool output :

     Movie Data Size                 : 180193
    
 Movie Data Offset               : 6388

    I try to merge with another audio and save metadata info like Movie Data Size/Offset and start/duration time.
    I try with ffmpeg/MP4Box commands like :

    MP4Box -new -add file_191282-377206_header.mp4 -add out000.mp4
    
ffmpeg -i file_191282-377206_header.mp4 -i out000.mp4 -codec copy -shortest output.mp4
    
ffmpeg -i file_191282-377206_header.mp4 -i out000.mp4 -filter_complex amerge -ac 2 -c:a aac output.mp4

    All the time information erased or changed.

    So question is how to merge 2 audio files inside mp4 and not change Movie Size/Offset and start/duration time ?

  • How to merge mp4 audio dash fragment with another audio

    18 mars 2019, par mosvov

    I have 1 audio file from dash stream

     Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file_191282-377206_header.mp4':   Metadata:
    

    
 major_brand     : iso6
    
 minor_version   : 1
    
 compatible_brands: mp42dashmsdhmsixiso6avc1isom
    
 creation_time   : 2016-04-29T11:04:26.000000Z   Duration: 00:00:30.02, start: 14.997333, bitrate: 49 kb/s
    
 Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 48 kb/s (default)

    Also in exiftool output :

     Movie Data Size                 : 180193
    
 Movie Data Offset               : 6388

    I try to merge with another audio and save metadata info like Movie Data Size/Offset and start/duration time.
    I try with ffmpeg/MP4Box commands like :

    MP4Box -new -add file_191282-377206_header.mp4 -add out000.mp4
    
ffmpeg -i file_191282-377206_header.mp4 -i out000.mp4 -codec copy -shortest output.mp4
    
ffmpeg -i file_191282-377206_header.mp4 -i out000.mp4 -filter_complex amerge -ac 2 -c:a aac output.mp4

    All the time information erased or changed.

    So question is how to merge 2 audio files inside mp4 and not change Movie Size/Offset and start/duration time ?

  • Add watermark to all frames in video using ffmpeg in C#

    4 mars 2013, par user2132236

    I use the following command to add a jpg watermark to my video in C# using ffmpeg :

    " -i " + inputFilePath + " -q:v 0 -q:a 0 -y " + @" -vf ""movie=logo.jpg [logo]; [in][logo] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]"" " + outputFilePath;

    This works fine but the output movie length is only one frame. Is this because it takes the duration from the jpg file ? How can i make ffmpeg to add a watermark to all frames in my video ?

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