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Autres articles (39)
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Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
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" (...) -
Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.
Sur d’autres sites (4989)
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How to add letter spacing in ffmpeg drawtext filter
13 avril 2023, par Kiran Shaji AugustineI am using drawtext in FFMPEG kit to overlay text on an image. I want to increase the spacing between the letters (tracking). How to acheive this. I was only able to find line_spacing but couldnot find letter_spacing


Expected to increase the space or distance between each letters in a text


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Revision c6ba3a3d85 : Further change to mv reference search. This experimental change reorders the se
3 janvier 2013, par Paul WilkinsChanged Paths : Modify /vp9/common/vp9_mvref_common.c Further change to mv reference search. This experimental change reorders the search so that all possible references that match the target reference frame are tested first and these in order of distance from the current block. These will (...)
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Changing YUV values of AVFrames
31 janvier 2012, par KageI'm trying to apply an effect to a video by altering the YUV values using FFMpeg programmatically in C.
Let's say I want to increase the luminescence of each pixel of each frame by 10.
At the moment I can open a video, get the video stream, find a frame, decode the frame, alter the YUV values of the AvFrame->data, encode the frame, and save the frame to be played back.
When I play back the video, the first frame looks as expected, but the next is even brighter and the one after that is even brighter, and each frame seems to be having more and more added to the Y values instead of just 10.
I tried changing the code so instead of altering the pixels for each frame, it just alters the first AVFrame's data. However when I play the video back, it is not only the first frame that has been altered, but like the first 30 or so frames.
Why are the other frames effected when I only change the AVFrame->data of the first frame ?