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Autres articles (53)
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Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users.
Sur d’autres sites (8085)
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ffmpeg - avcodec_receive_frame returns -11, why and how to solve it ?
26 mars 2022, par Kalen ClarkI'm learning to use ffmpeg in my engine,


and I wanna decode the first frame of video stream and output it to an image file.


I tried and just can't figured out why it returns -11.


My code :(error in last 5 lines of code, line 70-74)




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cvCaptureFromFile always returns NULL, Visual Studio 2005
14 septembre 2012, par user1671173I've got a problem with the cvCaptureFromFile function. It always returns NULL. I've done some research on the internet and I've added PATH to ffmpeg's "bin" directory.
But it's still the same. So I've tried to open the desired file withffplay.exe
. It returns an error which says "Invalid data found when processing an input". It is a "mjpg" file, which should be played with ffmpeg. Then I tried the same with some "mpg" file.
Now the message is "no such file or directory" which is not true, because the file is in the place. What else should I do ?
The files all right with Media-Player and VLC player.
Please help ! -
capture.isOpened() returns false in python [closed]
24 décembre 2019, par Elnaz YousefiI tried to read a video (.avi file) by cv2.VideoCapture in Python, but capture.isOpened() returns false.
when I execute python in cmd, it returns "Python 3.7.2". Also, when I use "pip install opencv-python" in command line, OpenCV was successfully installed.
By the way, I noticed that the version of opencv which is installed is 4.1.2 and the ffmpeg file is named "opencv_videoio_ffmpeg412".
Is everything right ? so what’s the problem ?