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  • 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.

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • Soumettre bugs et patchs

    10 avril 2011

    Un logiciel n’est malheureusement jamais parfait...
    Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
    Si vous pensez avoir résolu vous même le bug (...)

Sur d’autres sites (5472)

  • Revision 1306c1b09b : Masked Compound Inter Prediction The masked compound motion compensation has ma

    9 août 2013, par Yue Chen

    Changed Paths :
     Modify /configure


     Modify /vp9/common/vp9_blockd.h


     Modify /vp9/common/vp9_entropymode.c


     Modify /vp9/common/vp9_entropymode.h


     Modify /vp9/common/vp9_onyxc_int.h


     Modify /vp9/common/vp9_reconinter.c


     Modify /vp9/common/vp9_reconinter.h


     Modify /vp9/common/vp9_rtcd_defs.sh


     Modify /vp9/common/vp9_sadmxn.h


     Modify /vp9/common/vp9_subpelvar.h


     Modify /vp9/decoder/vp9_decodemv.c


     Modify /vp9/decoder/vp9_treereader.h


     Modify /vp9/encoder/vp9_bitstream.c


     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/vp9_mcomp.c


     Modify /vp9/encoder/vp9_mcomp.h


     Modify /vp9/encoder/vp9_onyx_if.c


     Modify /vp9/encoder/vp9_onyx_int.h


     Modify /vp9/encoder/vp9_ratectrl.c


     Modify /vp9/encoder/vp9_rdopt.c


     Modify /vp9/encoder/vp9_sad_c.c


     Modify /vp9/encoder/vp9_subexp.c


     Modify /vp9/encoder/vp9_subexp.h


     Modify /vp9/encoder/vp9_variance.h


     Modify /vp9/encoder/vp9_variance_c.c



    Masked Compound Inter Prediction

    The masked compound motion compensation has mask types separating a
    block into wedges at specific angles and offsets. The mask is used to
    weight pixels from the first and second predictors to obtain the final
    predictor. The weighting is smooth near the partition boundaries but
    becomes a selecton farther away.

    Bit-rate reduction : +0.960%(derfraw300) +0.651%(stdhdraw250)

    Change-Id : I1327d22d3fc585b72ffa0e03abd90f3980f0876a

  • lavfi/delogo : use weighted interpolation

    26 juin 2013, par Jean Delvare
    lavfi/delogo : use weighted interpolation

    The original delogo algorithm interpolates both horizontally and
    
vertically and uses the average to compute the resulting sample. This
    
works reasonably well when the logo area is almost square. However
    
when the logo area is significantly larger than high or higher than
    
large, the result is largely suboptimal.
    

    The issue can be clearly seen by testing the delogo filter with a fake
    
logo area that is 200 pixels large and 2 pixels high. Vertical
    
interpolation gives a very good result in that case, horizontal
    
interpolation gives a very bad result, and the overall result is poor,
    
because both are given the same weight.
    

    Even when the logo is roughly square, the current algorithm gives poor
    
results on the borders of the logo area, because it always gives
    
horizontal and vertical interpolations an equal weight, and this is
    
suboptimal on borders. For example, in the middle of the left hand
    
side border of the logo, you want to trust the left known point much
    
more than the right known point (which the current algorithm already
    
does) but also much more than the top and bottom known points (which
    
the current algorithm doesn’t do.)
    

    By properly weighting each known point when computing the value of
    
each interpolated pixel, the visual result is much better, especially
    
on borders and/or for high or large logo areas.
    

    The algorithm I implemented guarantees that the weight of each of the
    
4 known points directly depends on its distance to the interpolated
    
point. It is largely inspired from the original algorithm, the key
    
difference being that it computes the relative weights globally
    
instead of separating the vertical and horizontal interpolations and
    
combining them afterward.
    

    Signed-off-by : Jean Delvare <khali@linux-fr.org>
    
Signed-off-by : Stefano Sabatini <stefasab@gmail.com>
    • [DH] libavfilter/vf_delogo.c
    • [DH] tests/ref/fate/filter-delogo

  • Add text to video using ffmpeg command working in mac but give error in ubuntu ?

    15 mai 2018, par Jinal Somaiya

    I am running below ffmpeg command that is working fine in mac but in ubuntu give error :

    [aac @ 0x15187a0] The encoder ’aac’ is experimental but experimental codecs are not enabled, add ’-strict -2’ if you want to use it.

    Command :

    ffmpeg -i intro.mp4 -vf "drawtext=fontfile=FutuMd.ttf: text="Audi": x=680: y=500: fontsize=55: fontcolor=white: enable='between(t,4,6)'" introfinal.mp4

    Thanks in advance

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