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  • 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 ;

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Personnaliser les catégories

    21 juin 2013, par

    Formulaire de création d’une catégorie
    Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire.
    Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
    Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)

Sur d’autres sites (10155)

  • FFmpeg - Vertical-Scroll Image Overlay for same duration as audio file

    28 décembre 2020, par John Doe

    I want to scroll an image vertically, but I want the animation duration to match an mp3 file, which will be different every time. Here's what I have :

    


    ffmpeg -y -hide_banner -f lavfi -i color=s=1280x720 -loop 1 -i "image.jpg" -filter_complex "[1:v]scale=1280:-2,setpts=if(eq(N\,0)\,0\,1+1/0.01/TB),fps=30[fg]; [0:v][fg]overlay=y=-'t*h*0.01':eof_action=endall[video]" -map "[video]" "output.mp4"


    


    But this always produces a video with duration of 1 minute and 40 seconds, making the animation slow down or speed up accordingly. This is not what I want. I want the output video (and the scrolling animation) duration to match a random mp3 file.

    


    I am using FFmpeg in a Batch file on Windows. Any help would be appreciated.

    


  • avutil/mem : fix doc for reallocs

    1er avril 2022, par Zhao Zhili
    avutil/mem : fix doc for reallocs

    The doc says those function are like av_free if size or nmemb is
    
zero. It doesn't match the code. av_realloc() realloc one byte if
    
size is zero, which was added by 91ff05f6ac5 ten years ago.
    
realloc() itself in C is implementation-dependent. Make the doc
    
match the longstanding behaviour.
    

    Signed-off-by : Zhao Zhili <zhilizhao@tencent.com>
    • [DH] libavutil/mem.h

  • Revision ed2dc59c1b : Integral projection based motion estimation This commit introduces a new block

    13 février 2015, par Jingning Han

    Changed Paths :
     Modify /vp9/common/vp9_rtcd_defs.pl


     Modify /vp9/encoder/vp9_avg.c


     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/x86/vp9_avg_intrin_sse2.c



    Integral projection based motion estimation

    This commit introduces a new block match motion estimation
    using integral projection measurement. The 2-D block and the nearby
    region is projected onto the horizontal and vertical 1-D vectors,
    respectively. It then runs vector match, instead of block match,
    over the two separate 1-D vectors to locate the motion compensated
    reference block.

    This process is run per 64x64 block to align the reference before
    choosing partitioning in speed 6. The overall CPU cycle cost due
    to this additional 64x64 block match (SSE2 version) takes around 2%
    at low bit-rate rtc speed 6. When strong motion activities exist in
    the video sequence, it substantially improves the partition
    selection accuracy, thereby achieving better compression performance
    and lower CPU cycles.

    The experiments were tested in RTC speed -6 setting :
    cloud 1080p 500 kbps
    17006 b/f, 37.086 dB, 5386 ms ->
    16669 b/f, 37.970 dB, 5085 ms (>0.9dB gain and 6% faster)

    pedestrian_area 1080p 500 kbps
    53537 b/f, 36.771 dB, 18706 ms ->
    51897 b/f, 36.792 dB, 18585 ms (4% bit-rate savings)

    blue_sky 1080p 500 kbps
    70214 b/f, 33.600 dB, 13979 ms ->
    53885 b/f, 33.645 dB, 10878 ms (30% bit-rate savings, 25% faster)

    jimred 400 kbps
    13380 b/f, 36.014 dB, 5723 ms ->
    13377 b/f, 36.087 dB, 5831 ms (2% bit-rate savings, 2% slower)

    Change-Id : Iffdb6ea5b16b77016bfa3dd3904d284168ae649c

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