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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (91)
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MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)
Sur d’autres sites (10008)
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FFmpeg accurate speed for x11grab
21 mars 2017, par Peter ShawHi I am trying to make a screencast in realtime with ffmpeg on Linux.
This is my call :
ffmpeg \
-f x11grab \
-s 1920x1080 \
-r 24 -framerate 24 \
-i $DISPLAY \
-preset ultrafast \
-tune zerolatency \
-pix_fmt yuv420p \
-acodec copy \
-vcodec libx264 \
-b:v 500k \
-crf 0 \
-threads 0 \
-y /data/production/out.mkv \
-an \
-t $LENAs far as i can tell this is near accurate and has a decent quality. Maybe there is a better settling, than let me please know.
As the screen will be captured the timing is not correct. I get a message with something like this :
frame= 901 fps= 22 q=0.0 size= 66553kB time=00:00:37.50 bitrate=14538.3kbits/s speed=0.905x
The Speed will turn around from 0.600x to 1.200x and is never stable to 1x.
I wonder if it’s possible to get a accurate timing.
I have to do a 60sec movie that is in speed exactly 100% like the frame-buffer is. Is it possible ? -
How to speed up video conversion
3 février 2021, par ArheiselI'm currently working in a project that involves converting large series of .jpg (>6000) into video format. These frames (320x240) are stored in folders at a rate of 2.5fps. Generating a couple of folders every hour that need to be converted ASAP.


For now I've tried copying the folder to a ram disk and using avconv which takes about a minute.


Here is my command :


avconv -threads auto -y -r 2.51 -i %03d-capture.jpg -s 320x240 -r 25 video.mpeg



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- Could ffmpeg work faster ?
- Is there a way to speed it up ?
- Which video format takes less time to convert to ?








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How to speed up a video in order to shorten its length and embed a timestamp to represent time as it was recorded ?
8 janvier 2021, par Gonzalo AspeeI have a video recorded at 5 fps that I want to speed up to 30 fps to shorten it. That is simple enough as :


ffmpeg -i input.mp4 -r 30 -vf "setpts=(1/6)*PTS" output.mp4



But when I try to add a timestamp to it with :


ffmpeg -i input.mp4 -r 30 -vf "setpts=(1/6)*PTS, drawtext=text='%{pts\:localtime\:1610043985\:%Y\-%m\-%d %H\\\\\:%M\\\\\:%S.}%{eif\:mod(n,30)\:d}'" output.mp4



The timestamp does not longer represents the time as it was recorded (it should run faster now)


What would be the simplest way to achieve this on a single pass ?