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  • 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 (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

Sur d’autres sites (7271)

  • avcodec/hevcdec : Add stat_coeffs to HEVCABACState

    30 juin 2022, par Andreas Rheinhardt
    avcodec/hevcdec : Add stat_coeffs to HEVCABACState

    The HEVC decoder has both HEVCContext and HEVCLocalContext
    
structures. The latter is supposed to be the structure
    
containing the per-slicethread state.
    

    Yet that is not how it is handled in practice : Each HEVCLocalContext
    
has a unique HEVCContext allocated for it and each of these
    
coincides with the main HEVCContext except in exactly one field :
    
The corresponding HEVCLocalContext.
    
This makes it possible to pass the HEVCContext everywhere where
    
logically a HEVCLocalContext should be used.
    

    This led to confusion in the first version of what eventually became
    
commit c8bc0f66a875bc3708d8dc11b757f2198606ffd7 :
    
Before said commit, the initialization of the Rice parameter derivation
    
state was incorrect ; the fix for single-threaded as well as
    
frame-threaded decoding was to add backup stats to HEVCContext
    
that are used when the cabac state is updated*, see
    
https://ffmpeg.org/pipermail/ffmpeg-devel/2020-August/268861.html
    
Yet due to what has been said above, this does not work for
    
slice-threading, because the each HEVCLocalContext has its own
    
HEVCContext, so the Rice parameter state would not be transferred
    
between threads.
    

    This is fixed in c8bc0f66a875bc3708d8dc11b757f2198606ffd7
    
by a hack : It rederives what the previous thread was and accesses
    
the corresponding HEVCContext.
    

    Fix this by treating the Rice parameter state the same way
    
the ordinary CABAC parameters are shared between threads :
    
Make them part of the same struct that is shared between
    
slice threads. This does not cause races, because
    
the parts of the code that access these Rice parameters
    
are a subset of the parts of code that access the CABAC parameters.
    

    * : And if the persistent_rice_adaptation_enabled_flag is set.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] libavcodec/hevc_cabac.c
    • [DH] libavcodec/hevcdec.c
    • [DH] libavcodec/hevcdec.h

  • doc : delete viterbi.txt

    10 novembre 2013, par Timothy Gu
    doc : delete viterbi.txt

    The description has been moved to the FFmpeg wiki :
    
https://trac.ffmpeg.org/wiki/ViterbiAlgorithm
    

    Signed-off-by : Timothy Gu <timothygu99@gmail.com>
    • [DH] doc/viterbi.txt

  • How convert High bitrate mp3 to lower rate using ffmpeg in android

    31 mars 2017, par Android Weblineindia

    We want to convert 320kbps mp3 file to 128kbps mp3 so currently we are using below ffmpeg command but its not working.

    ffmpeg -i input.mp3 -codec:a libmp3lame -qscale:a 5 output.mp3

    Result :-the output bitrate same as input mp3.

    And we are following the FFmpeg Encoding guideline for that here is the link :- https://trac.ffmpeg.org/wiki/Encode/MP3

    so please suggest any solution.

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