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Autres articles (16)

  • 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 (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (2156)

  • Revision 581731a95f : vp8enc : Prevent out of bounds memory access. Prevent out of bounds access when

    17 janvier 2015, par Alex Converse

    Changed Paths :
     Modify /vp8/encoder/onyx_if.c


     Modify /vp8/encoder/onyx_int.h


     Modify /vp8/vp8_cx_iface.c



    vp8enc : Prevent out of bounds memory access.

    Prevent out of bounds access when attempting to increase frame size

    Change-Id : I710c40c692802a72963c9680c2125da17f9060a9

  • MP4 - Prepare header for pseudostreaming requests

    3 février 2014, par davidkomer

    Assuming the client does not support byte-range requests and therefore will make requests like test.mp4 ?startoffset=2000

    How can the server prepare an mp4 header that works for all requests... is there a bare minimum that works every time or must it be the actual original header ?

    Similarly, is there a way to use ffprobe to export the original header as-is (i.e. binary format) so that it can simply be resent at the beginning of each request, by the server ?

    Thanks !

    EDIT : Did some digging around using AtomicParsley and looking at some pseudostreamed videos via archive.org. Seems that the "header" does need to be reconstructed for the new stream. Specifically, the moov atom and mdat data.

    Putting aside mdat for now, are there any helpful libraries out there that will convert from moov to moov, or at least make it easier ? No C++ please, but C is fine

  • checkasm : disable unaligned access emulation

    1er juin 2024, par Rémi Denis-Courmont
    checkasm : disable unaligned access emulation

    The OS may silently fix (emulate) unaligned hardware access exceptions.
    
This is extremely slow and code should be fixed not to rely on unaligned
    
access on affected hardware. Accordingly this requests that the OS
    
disable emulation and instead throw Bus error, which will be caught by
    
checkasm's signal handler.
    

    This has no effects if the hardware supports unaligned access in
    
hardware, since no exceptions are generated. prctl() will fail safe in
    
that case.
    • [DH] tests/checkasm/checkasm.c

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