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Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (95)
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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 (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
Sur d’autres sites (6076)
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v4l2loopback device detected by Chrome, not seen by Zoom or Firefox
14 novembre 2020, par uri sh.I am trying to create a loopback device from my webcam to be accessible from both Zoom and a browser. I created three v4l2loopback devices :


sudo modprobe v4l2loopback devices=3 video_nr=10,11,12 card_label="Loopback_1","Loopback_2","Virtual_cam" exclusive_caps=1,1,0



followed by :


ffmpeg -i /dev/video0 -f v4l2 -vcodec rawvideo -pix_fmt yuv420p /dev/video10 -f v4l2 /dev/video11



Both devices are detected by Chrome, yet not seen by either Zoom nor Firefox.
Following advice on other questions on stackoverflow I tried setting the device properties using v4l2loopback-ctl, using
v4l2loopback-ctl set-caps "video/x-raw,format=UYVY,width=640,height=480" /dev/video10
, and got in response :



Setting pipeline to PAUSED ...
ERROR : Pipeline doesn't want to pause.
ERROR : from element /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0 : Device '/dev/video10' is not a output device.
Additional debug info :
v4l2_calls.c(636) : gst_v4l2_open () : /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0 :
Capabilities : 0x85208000
Setting pipeline to NULL ...
Freeing pipeline ...
output to /dev/video10 failed




I also tried using gst-launch-1.0 :


gst-launch-1.0 v4l2src device=/dev/video0 ! v4l2sink device=/dev/video10



which tells me that /dev/video10 is not an output device :




Setting pipeline to PAUSED ...
ERROR : Pipeline doesn't want to pause.
ERROR : from element /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0 : Device '/dev/video10' is not a output device.
Additional debug info :
v4l2_calls.c(636) : gst_v4l2_open () : /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0 :
Capabilities : 0x85208000
Setting pipeline to NULL ...
Freeing pipeline ...




I am running Xubuntu 20.04, kernel version 5.4.0-52-generic, with v4l2loopback-dkms v.0.12.3-1ubuntu0.1, and v4l2loopback-utils.


My goal here is to get a device to be consumed by a desktop Node.js server which will open up a web app using
xdg-open
(thus the need for both Chrome AND Firefox), which will output a processed videostream that could be consumed by a video chat app, such as Zoom or Jitsi.

Any help will be greatly appreciated.


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How to start a download when file is processing by a software
13 février 2016, par thesweetigerI encode a file with a special watermark for be downlaoded by the user
I would like to be able to start the downlaod when ffmpeg encode the file.I have a php page which one create the water mark , launch ffmpeg and start the download with X-sendifle
The download don’t start, adding sleep(15) let’s the download start just I receive only what is doneActually I use Apache2 as the webserver with X-sendfile mod
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Download video from a url [on hold]
27 mai 2018, par Emilio MaingiI’m writing a program to download a video when given a link to the video. From my research i have learned that i am supposed to use ffmpeg to do the conversion and download. But my ffmpeg does not execute. I have tried shell_exec() and exec() but none of them seem to be working. Can somebody help me with some guidelines to get the videos downloadable from any video site like youtube, vimeo, twitch tv. I’ll appreciate any ideas that will come through. Thanks