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Autres articles (97)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (11179)

  • doc : cygwin : Update list of FATE package requirements

    7 août 2012, par Diego Biurrun

    doc : cygwin : Update list of FATE package requirements

  • How to estimate bandwidth / speed requirements for real-time streaming video ?

    19 juin 2016, par Vivek Seth

    For a project I’m working on, I’m trying to stream video to an iPhone through its headphone jack. My estimated bitrate is about 200kbps (If i’m wrong about this, please ignore that).

    I’d like to squeeze as much performance out of this bitrate as possible and sound is not important for me, only video. My understanding is that to stream a a real-time video I will need to encode it with some codec on-the-fly and send compressed frames to the iPhone for it to decode and render. Based on my research, it seems that H.265 is one of the most space efficient codecs available so i’m considering using that.

    Assuming my basic understanding of live streaming is correct, how would I estimate the FPS I could achieve for a given resolution using the H.265 codec ?

    The best solution I can think of it to take a video file, encode it with H.265 and trim it to 1 minute of length to see how large the file is. The issue I see with this approach is that I think my calculations would include some overhead from the video container format (AVI, MKV, etc) and from the audio channels that I don’t care about.

  • aarch64 : vp9mc : Load only 12 pixels in the 4 pixel wide horizontal filter

    3 janvier, par Janne Grunau
    aarch64 : vp9mc : Load only 12 pixels in the 4 pixel wide horizontal filter

    This reduces the amount the horizontal filters read beyond the filter
    
width to a consistent 1 pixel. The data is not used so this is usually
    
not noticeable. It becomes a problem when the application allocates
    
frame buffers only for the aligned picture size and the end of it is at
    
a page boundary. This happens for picture sizes which are a multiple of
    
the page size like 1280x640. The frame buffer allocation is based on
    
its most likely done via mmap + MAP_ANONYMOUS so start and end of the
    
buffer are page aligned and the previous and next page are not
    
necessarily mapped.
    
Under these conditions like seen by Firefox a read beyond the end of the
    
buffer results in a segfault.
    
After the over-read is reduced to a single pixel it's reasonable to use
    
VP9's emulated edge motion compensation for this.
    

    Fixes : https://bugzilla.mozilla.org/show_bug.cgi?id=1881185
    
Signed-off-by : Janne Grunau <janne-ffmpeg@jannau.net>
    
Signed-off-by : Ronald S. Bultje <rsbultje@gmail.com>
    • [DH] libavcodec/aarch64/vp9mc_neon.S

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