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Autres articles (52)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)
Sur d’autres sites (9752)
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save caca (ascii video) to an mp4 video [on hold]
8 juillet 2013, par user2559158No problems viewing a caca file from mplayer (mplayer -vo caca), and it's also possible view the video file as caca with ffmpeg (fmpeg -i file.mp4 -f caca -pix_fmt rgb24 outputfile.mp4), but neither saves the file. Is there anyway to do it ?
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ffmpeg pass through video including Dolby Video
11 janvier 2024, par cmjordanGiven media that contains a video stream that includes Dolby Vision as one of the HDR metadata, how does one transcode the media and maintain the video stream as is (including the Dolby Vision and any other HDR metadata) ?


Sample media
mediainfo
excerpt :

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5@High
HDR format : Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU, HDR10 compatible / SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible
Codec ID : V_MPEGH/ISO/HEVC
...



-c:v:0 copy
drops the Dolby Vision metadata from this and retains only the latter HDR metadata.

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Poor video quality in first few frames using video output options in gganimate
27 janvier 2021, par NauticaI'm trying to export some animations I've made using gganimate through video format as the gifs I'm creating are quite large.


Sample code :


library(gganimate)

p <- ggplot(mtcars, aes(factor(cyl), mpg)) +
 theme_dark() +
 theme(panel.grid = element_line(colour = "white")) +
 geom_boxplot() +
 transition_states(
 gear,
 transition_length = 2,
 state_length = 1
 ) +
 enter_fade() +
 exit_shrink() +
 ease_aes('sine-in-out')

anim_save("example.mp4",
 animate(
 p,
 nframes = 450,
 fps = 25,
 width = 1280,
 height = 720,
 type = "cairo",
 start_pause = 50,
 end_pause = 50,
 renderer = av_renderer()
 ))



Produces the video seen here : https://vimeo.com/505019987


With the standard ggplot2 theme : https://vimeo.com/505020822


This is another example of something I made using gganimate : https://www.youtube.com/watch?v=fHzjl_z_sSo


You can see that the video quality in the first few frames are very bad. In the video with the standard ggplot2 theme and the YouTube video, the gridlines and watermark text are not visible at the start but fade in much later. I don't know much about video codecs but I assume it has something to do with the ffmpeg library the
av
package/av_renderer()
is using. Has anyone experienced something like this ?