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Autres articles (10)

  • 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 (...)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (3322)

  • aadec : add chapters and seeking

    8 juillet 2018, par Karsten Otto
    aadec : add chapters and seeking

    read_packet reads content in chunks. Thus seek must be clamped to valid
    
chunk positions in the file, which in turn are relative to chapter start
    
positions.
    

    So in read_header, scan for chapter headers once by skipping through the
    
content. Set stream time_base based on bitrate in bytes/s, for easy
    
timestamp to position conversion.
    

    Then in read_seek, find the chapter containing the seek position, calculate
    
the nearest chunk position, and reinit the read_seek state accordingly.
    

    Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavformat/aadec.c

  • Anomalie #4430 : image_reduire gère mal les arrondis

    5 février 2020, par jluc -

    Je précise qu’avec round() ça marche dans le cas sus-cité, et globalement c’est certainement moins perturbant que ceil ou floor puisque le décalage est de maximum 0.5 alors qu’avec ceil ou floor ça va jusqu’à 1.

    Sinon, en gardant ceil, une autre alternative pour mon squelette, plutôt que appeler 2 fois de suite |reduire(200,200)|reduire(200,200) , c’est de viser une hauteur "juste en dessous" : |image_proportions(1, 0.99999) puisque le ceil rattrapera.

    Et pour info, avec floor au lieu de ceil, _image_ration renvoie... 199 ! Même pas 200... on est vraiment là dans les bas-fond de la gestion des floats par php.

  • Swift : How can I generate Mp4 video from programmaticall output ? [closed]

    21 août 2020, par Mount Ain

    This question is specifically to Swift programming language for Linux & macOS platforms.To understanding the concept, I used Swift programming language. But not depend on Swift programming language. C or C++ is also good to me.

    &#xA;

    I can generate JPEG image from NSView by using NSBitmapImageRep. But Linux I don't what I want to do. So, the first thing I need to know is the step to generate JPEG image by programmatically without using the NSView. I really don't know How hard it is. But I want to learn how it's work. I feel It's the way to fill the color into pixels one by one to combine a Image. But I don't know How to do in programming. I knew the same way is used in videos by packing the series of image with audio & subtitle & other meta info.

    &#xA;

    If you ask about compression, I really want to know How Twitter & YouTube compressing uploaded videos without loss of quality.

    &#xA;

    So what is the concept,

    &#xA;

      &#xA;
    1. To generate a JPEG image by programmatically without using NSView ?

      2. &#xA;

    2. To generate MPEG-4 video by group of JPEG images ?

      3. &#xA;

    &#xA;

    Thanking in advance...

    &#xA;

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