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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (55)
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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 (11812)
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Better vertical stabilization when simultaneously cropping to widescreen format
21 juillet 2016, par Kelley van EvertFirst of all : forgive me for maybe asking a stupid or somewhat uninformed question. I’m totally new to post processing video, stabilization, etc..
I’m shooting 1920x1080 compressed movie files with my Canon 5D2, and afterwards crop then to cinematic 1920x800 (2.4:1). (With Magic Lantern I use an overlay bitmap when shooting. And yes, I know that with magic lantern I can shoot RAW, but my cards as well as computer are not fast enough to deal with that much data.)
Before doing any production, I convert the big .MOV files to smaller ones, simultaneously stabilizing the video a bit, and cropping it to 1920x800. I do this with
ffmpeg
roughly as follows :ffmpeg -i f.MOV -vf vidstabdetect -f null -
ffmpeg -i f.MOV -c:v libx264 -profile:v high -crf 18 -vf "vidstabtransform, crop=in_w:in_h-280" -c:a aac -strict experimental f2.mp4However, the fact that a great deal of the vertical resolution is being cropped is not being used to be able to handle the stabilizing transforms better. Often, the image is stretched/skewed vertically, when this is not really needed given the crop used.
Is it possible in any way to use the crop befenificially in the stabilizing transforms ?
An example is the frame below. Here, I would rather have that the image is not stretched vertically at all, and just get away with a slight static zoom (crop), because the horizontal black border is the only problem in this frame.
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ffmpeg rotate and trim video 4k horizontal -> 2k vertical
19 juillet 2015, par Flash ThunderI was looking for solution, but seems that the ones that google finds are not valid anymore... I think that you have to use mapping for that, but not sure how...
I need to rotate horizontal 4K video and trim it (leaving center part), so the output would be vertical 1080p. Could anybody give me a hand with that ?
Of course I need to keep the best possible quality.
PS.
ffmpeg compiled from git-8250943 (2015-07-17)
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swscale : refactor vertical scaler
18 août 2015, par Pedro Arthur