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Autres articles (3)

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    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

  • HTML5 audio and video support

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    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
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    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

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  • wamenc : handle failure to encode.

    13 mai 2013, par Reimar Döffinger
    wamenc : handle failure to encode.

    This is necessary since the switch to floating point
    
input means there is no longer sufficient input data
    
validation.
    
There is a good chance that other encoders are affected
    
by similar issues.
    
This problem can be triggered by trying to encode
    
extremely large values and probably also with Inf and
    
possibly also NaNs.
    

    Signed-off-by : Reimar Döffinger <Reimar.Doeffinger@gmx.de>
    • [DH] libavcodec/wmaenc.c

  • Checkasm : assembly testing and benchmarking tool

    11 juillet 2015, par Henrik Gramner
    Checkasm : assembly testing and benchmarking tool

    It provides the following features :
    
 * verify correctness by comparing output to the C version.
    
 * detect failure to save and restore clobbered callee-saved registers.
    
 * detect 32-bit parameters being used as if they were 64-bit in x86-64
    
   (the upper halves are not guaranteed to be zero - but in practice
    
   they very often are, which makes those bugs hard to spot otherwise).
    
 * easy benchmarking.
    

    Compile by running ’make checkasm’.
    
Execute by running ’tests/checkasm/checkasm’.
    

    Optional arguments are ’—bench’ to run benchmarks for all functions,
    
’—bench=<pattern>’ to run benchmarks for all functions that starts with
    
<pattern>, and ’<integer>’ to seed the PRNG for reproducible results.
    

    Contains unit tests for most h264pred functions to get started, more tests
    
can be added afterwards using those as a reference.
    

    Loosely based on code from x264. Currently only supports x86 and x86-64,
    
but additional architectures shouldn’t be too much of an obstacle to add.
    

    Note that functions with floating point parameters or floating point
    
return values are not supported. Some compiler-specific features or
    
preprocessor hacks would likely be required to add support for that.
    

    Signed-off-by : Janne Grunau <janne-libav@jannau.net>
    • [DH] .gitignore
    • [DH] tests/Makefile
    • [DH] tests/checkasm/Makefile
    • [DH] tests/checkasm/checkasm.c
    • [DH] tests/checkasm/checkasm.h
    • [DH] tests/checkasm/h264pred.c
    • [DH] tests/checkasm/x86/Makefile
    • [DH] tests/checkasm/x86/checkasm.asm

  • hls : Store all durations in AV_TIME_BASE

    29 juillet 2013, par Martin Storsjö
    hls : Store all durations in AV_TIME_BASE

    Also parse segment durations as floating point, which is allowed
    
since HLS version 3.
    

    This is based on a patch by Zhang Rui.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] libavformat/hls.c

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