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Autres articles (59)

  • 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 (...)

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

Sur d’autres sites (5971)

  • Revision e94b415c34 : Add encoder control for setting color space This commit adds encoder side contr

    13 janvier 2015, par Yaowu Xu

    Changed Paths :
     Modify /test/vp9_encoder_parms_get_to_decoder.cc


     Modify /vp9/common/vp9_enums.h


     Modify /vp9/common/vp9_onyxc_int.h


     Modify /vp9/decoder/vp9_decodeframe.c


     Modify /vp9/encoder/vp9_bitstream.c


     Modify /vp9/encoder/vp9_encoder.c


     Modify /vp9/encoder/vp9_encoder.h


     Modify /vp9/vp9_cx_iface.c


     Modify /vpx/vp8cx.h


     Modify /vpxenc.c



    Add encoder control for setting color space

    This commit adds encoder side control for vp9 to set color space info
    in the output compressed bitstream.

    It also amends the "vp9_encoder_params_get_to_decoder" test to verify
    the correct color space information is passed from the encoder end to
    decoder end.

    Change-Id : Ibf5fba2edcb2a8dc37557f6fae5c7816efa52650

  • Revision 41eb20d1e9 : Add encoder control for setting color space This commit adds encoder side contr

    13 janvier 2015, par Yaowu Xu

    Changed Paths :
     Modify /vp9/common/vp9_enums.h


     Modify /vp9/common/vp9_onyxc_int.h


     Modify /vp9/decoder/vp9_decodeframe.c


     Modify /vp9/encoder/vp9_bitstream.c


     Modify /vp9/encoder/vp9_encoder.c


     Modify /vp9/encoder/vp9_encoder.h


     Modify /vp9/vp9_cx_iface.c


     Modify /vpx/vp8cx.h


     Modify /vpxenc.c



    Add encoder control for setting color space

    This commit adds encoder side control for vp9 to set color space info
    in the output compressed bitstream.

    It also amends the "vp9_encoder_params_get_to_decoder" test to verify
    the correct color space information is passed from the encoder end to
    decoder end.

    Change-Id : Ibf5fba2edcb2a8dc37557f6fae5c7816efa52650
    (cherry picked from commit e94b415c3479129944a69fafbeacf550fb9237b7)

  • Best way to record a HTML Canvas/WebGL animation server-side into a video ?

    14 décembre 2016, par Abhinav

    I have a set of animations which I can make in Canvas (fabric.js) or WebGL (three.js). I need to record them automatically, server-side, through a script and output a video file.

    The animations include :

    1. Pictures
    2. Videos (with audio)
    3. Other animations/effects

    I have researched a lot during last few months on this.

    Results
    1. User PhantomJS + FFMPEG
    Run HTML Canvas animations on headless browser(PhantomJS) and record with FFMPEG. Here the issue is PhantomJS supports neither WebGL nor Video element. http://phantomjs.org/supported-web-standards.html

    2. Use Websockets to send data back to server using DataURL
    Here again, we will need to run the animations on browser (which we can’t because we have to do everything on server).

    3. Use node-canvas
    This is a library by TJ Holowaychuk which allows rendering HTML Canvas on Node.js. But it has its own limitations plus I haven’t really explored this field much.
    (If someone could shed more light on this library)

    If anyone has done it before or can guide me somewhere useful.
    All we need to do is use some data to create animations and record it into a video, everything on server side.

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