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Autres articles (20)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

  • 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 (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

Sur d’autres sites (5678)

  • swscale/ppc : VSX-optimize non-full-chroma yuv2rgb_1

    31 mars 2019, par Lauri Kasanen
    swscale/ppc : VSX-optimize non-full-chroma yuv2rgb_1

    ./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 -sws_flags fast_bilinear \
    
        -s 1200x1440 -f null -vframes 100 -pix_fmt $i -nostats \
    
        -cpuflags 0 -v error -
    

    32-bit mul, power8 only.
    

    1.8-2.3x speedup :
    

    rgb24
    
  18192 UNITS in yuv2packed1,   32767 runs,      1 skips
    
   9983 UNITS in yuv2packed1,   32760 runs,      8 skips
    
bgr24
    
  18665 UNITS in yuv2packed1,   32766 runs,      2 skips
    
   9925 UNITS in yuv2packed1,   32763 runs,      5 skips
    
rgba
    
  20239 UNITS in yuv2packed1,   32767 runs,      1 skips
    
   8794 UNITS in yuv2packed1,   32759 runs,      9 skips
    
bgra
    
  20354 UNITS in yuv2packed1,   32768 runs,      0 skips
    
   8770 UNITS in yuv2packed1,   32761 runs,      7 skips
    
argb
    
  20185 UNITS in yuv2packed1,   32768 runs,      0 skips
    
   8761 UNITS in yuv2packed1,   32761 runs,      7 skips
    
bgra
    
  20360 UNITS in yuv2packed1,   32766 runs,      2 skips
    
   8759 UNITS in yuv2packed1,   32764 runs,      4 skips
    

    This is a low speedup, but the x86 mmx version also gets only 2x. The mmx version
    
is also heavily inaccurate, while the vsx version has high accuracy.
    • [DH] libswscale/ppc/swscale_vsx.c

  • Revision 9f5fd31d7f : Expand UMV border to 96 pixels Ensures that the full 64 pixel border is availab

    29 avril 2013, par John Koleszar

    Changed Paths :
     Modify /vpx_scale/yv12config.h



    Expand UMV border to 96 pixels

    Ensures that the full 64 pixel border is available for prediction (need a
    minimum of
    64+INTERP_EXTEND on all sides, and 32+INTERP_EXTEND on UV). Value also must be a
    multiple of 32 to keep UV stride alignment. The smaller border was causing the
    prediction
    to read outside the frame, which can cause a mismatch.

    TODO : Get rid of this explicit border and use edge emulation instead.

    Change-Id : I3f68453a088ec0ab4349d0f5cc02b573be06d7c4

  • Revision 0bba4f1efa : Merge "Allow full RD TX size search for GF/ALT at speed 2"

    22 avril 2014, par Yaowu Xu

    Merge "Allow full RD TX size search for GF/ALT at speed 2"

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