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Autres articles (111)
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Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...) -
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. -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...)
Sur d’autres sites (13159)
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ffmpeg - Access elements of AVCodecContext
9 avril 2018, par HamedI want to access some members of my
AVCodecContext *av_ctx
in my program. It is fine when I compile it in 32bit version, But when I change it to 64bit this elements act like they been shifted.For example, I want to get
av_ctx->coded_width
andav_ctx->coded_height
(sometimes they are different fromav_ctx->width
andav_ctx->height
) and store them in some variables. Now when I debug this program in 32bit version it’s Ok, but in 64bit version this values are wrong and when I check my structure I can see the next two elements (av_ctx->gop_size
andav_ctx->pix_fmt
) has the values that I want.I checked
AVCodecContext
declaration onavcodec.h
and it (in comments above structure declaration) says :Please use AVOptions (av_opt* / av_set/get*()) to access these fields from user applications.
I think this might be the right way to get these elements but I don’t know what is this AVOptions, I searched it but couldn’t find what is it exactly and how can I use it.
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How to access YUV planes from ratecontrol in x264 encoder
31 décembre 2018, par shuchI need to get access to the YUV planes in x264 encoder on the encoding stage. I understand how to do it on the input stage (in raw.c), but I don’t succeed to do it in encoder.c or ratecontrol.c.
Thanks
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Revision 29071a418e : Fix invalid memory access on 2x downscale. The issue was discovered on bitstrea
9 septembre 2014, par Alexander VoronovChanged Paths :
Modify /vp9/common/vp9_reconinter.c
Fix invalid memory access on 2x downscale.The issue was discovered on bitstream with 2x vertical downscale. For
zero MVs, y_pad is set to 1 only when vertical convolution is
required. The original code assumes that for y_step_q4 == 32 we don’t
perform vertical convolution. But vp9_setup_scale_factors_for_frame()
sets convolve functions so that when x_step and y_step are both not
equal to 16, convolve in both directions is performed. And convolve()
unconditionally subtracts one stride from source pointer when calls
convolve_horiz(). This leads to invalid memory access.Change-Id : I882dfa6081a58e172b5ffa55842bfcd6727f10bf