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Médias (91)

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  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • 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 (...)

  • 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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  • FFMPEG : Is defining a context for a codec compulsary ?

    28 novembre 2013, par sam

    I'm having a a decoder code. I'm trying to integrate it into ffmpeg framework.

    I'm referring to the HOW TO given here : http://wiki.multimedia.cx/index.php?title=FFmpeg_codec_howto

    According to that article i need to define a structure in my decoder_name.c file.

    The example structure is shown below :

    AVCodec sample_decoder =
    
{
    
    .name           = "sample",
    
    .type           = AVCODEC_TYPE_VIDEO,
    
    .id             = AVCODEC_ID_SAMPLE,
    
   // .priv_data_size = sizeof(COOKContext),
    
    .init           = sample_decode_init,
    
    .close          = sample_decode_close,
    
    .decode         = sample_decode_frame,
    
};

    Where,

    .name -> specifies the short name of my decoder.
    

    
.type -> is used to specify that it is a video decoder.
    

    
.id -> is an unique id that i'm assigning to my video decoder.
    

    
.init -> is a function pointer to the function in my decoder code that performs decoder related initializations
    

    
.decode -> is a function pointer to the function in my decoder code that decodes a single frame, given the input data (elementary stream).
    

    
.close -> is a function pointer to the function in my decoder that frees all allocated memory i.e. the memory allocated in init.

    However, my doubt is according to the above mentioned article, there is another field called .priv_data_size which hold the size of some context.

    Is it compulsory to have this field .priv_data_size because according to the above article, i need not define all the parameters of the structure AVCodec. Further i do not possess any such context for my decoder.

    However, when i go through the code of other available decoders in libavcodec of ffmpeg, i find that every decoder has defined this. Will my decoder work if i do not specify this ? I'm unable to proceed because of this. please provide some guidance regrading the same.

    —Thanks in advance.

  • Revision 99981 : Sur Opera 40 sous Windows 10, ça provoquait un « Uncaught ReferenceError : ...

    20 octobre 2016, par real3t@… — Log

    Sur Opera 40 sous Windows 10, ça provoquait un « Uncaught ReferenceError ? : tableau_sites is not defined » qui rendait les boutons calculer inutiles.

  • Revision 99981 : Sur Opera 40 sous Windows 10, ça provoquait un « Uncaught ReferenceError : ...

    20 octobre 2016, par real3t@… — Log

    Sur Opera 40 sous Windows 10, ça provoquait un « Uncaught ReferenceError ? : tableau_sites is not defined » qui rendait les boutons calculer inutiles.

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