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  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • 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 (...)

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  • Revision 99a132f561 : Add a seg map preservation test vector. Add a test vector to show the cases whe

    13 octobre 2014, par Alex Converse

    Changed Paths :
     Modify /test/test-data.mk


     Modify /test/test-data.sha1


     Modify /test/test_vectors.cc



    Add a seg map preservation test vector.

    Add a test vector to show the cases where segmentation map is preserved
    from frome to frame as outlined in the inquiry in issue 761.

    Change-Id : I630c6aba27d0d0b109cc7fd7c6fcd008222a0cf3

  • How to use fig.show=animate in knitr without administrator privileges

    23 mai 2013, par Stéphane Laurent

    I use Windows without administrator privileges hence I cannot set a path in the Windows PATH variable.

    The ffmpeg.exe file is in my "U:/ProgramFiles/ImageMagick-6.8.5-5/" folder.

    I have found how to use the saveVideo() function of the animate package :

    ani.options(ffmpeg = shQuote('U:/ProgramFiles/ImageMagick-6.8.5-5/ffmpeg.exe'))
    
saveVideo({
    
  par(mar = rep(3, 4))
    
  for (i in seq(pi/2, -4/3 * pi, length = 12)) {
    
    plot(0, 0, pch = 20, ann = FALSE, axes = FALSE)
    
    arrows(0, 0, cos(i), sin(i))
    
    axis(1, 0, "VI"); axis(2, 0, "IX")
    
    axis(3, 0, "XII"); axis(4, 0, "III"); box()
    
  }
    
},
    
        video.name="mavideo.mp4",
    
        outdir="U:/Data/Rtests/Animation")

    But I haven't find how to knit a Rmd file with the option fig.show=animate in a chunk, for instance :

    ```{r clock, fig.width=7, fig.height=6, fig.show='animate'}
    
par(mar = rep(3, 4))
    
for (i in seq(pi/2, -4/3 * pi, length = 12)) {
    
    plot(0, 0, pch = 20, ann = FALSE, axes = FALSE)
    
    arrows(0, 0, cos(i), sin(i))
    
    axis(1, 0, "VI"); axis(2, 0, "IX")
    
    axis(3, 0, "XII"); axis(4, 0, "III"); box()
    
}
    
```

    I have tried to modifiy the hook_ffmpeg_html() function by only changing the ffmpeg.cmd variable :

    ```{r}
    
 hook_ffmpeg_html2 <- function (x, options) 
    
{ 
    
    ........ 
    
    ffmpeg.cmd = paste("-y", "-r", 1/options$interval, 
    
        "-i", fig.fname, mov.fname) 
    
    ffmpeg.cmd <-  paste('"U:/ProgramFiles/ImageMagick-6.8.5-5/ffmpeg"', ffmpeg.cmd) 
    
   ...... 
    
} 
    
opts_knit$set(animation.fun = hook_ffmpeg_html2) 
    
```

    But this chunk does not work, below is the error message :

    label: unnamed-chunk-1 
    
Warning in block_exec(params) : 
    
  failed to tidy R code in chunk  
    
reason: Error in base::parse(text = text, srcfile = NULL) : 
    
  21:14: unexpected symbol 
    
20: options$out.height), if ("controls" %in% mov.opts) 
    
21: "controls=\\"controls

  • Show first and last frame longer in ffmpeg

    3 novembre 2014, par Gert Gottschalk

    I am building a time-lapse animation from single frames and would like to show the first and last frames longer than the prescribe frame rate. My initial ffmpeg call looks like this and works quite well. It creates the basic time-lapse animation from single frames.

    ffmpeg -r 16  -threads 0 -f image2 -pattern_type glob -i './sofi_20141022/octave2reg/IMG_*_cent.png' -c:v libx264 -s 1440x1080 -crf 24 ./Video/20141022_Partial_Solar_Eclipse_crf24_16fps.mp4

    But how do I add controls to have the first and last frame show longer (i.e for sec) ??

    Thanks,
    Gert

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