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Autres articles (48)
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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 (...) -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Déploiements possibles
31 janvier 2010, parDeux types de déploiements sont envisageable dépendant de deux aspects : La méthode d’installation envisagée (en standalone ou en ferme) ; Le nombre d’encodages journaliers et la fréquentation envisagés ;
L’encodage de vidéos est un processus lourd consommant énormément de ressources système (CPU et RAM), il est nécessaire de prendre tout cela en considération. Ce système n’est donc possible que sur un ou plusieurs serveurs dédiés.
Version mono serveur
La version mono serveur consiste à n’utiliser qu’une (...)
Sur d’autres sites (4919)
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Revision b66f7016c1 : Take out repeated block width/height lookup functions The functions b_width_log
7 octobre 2014, par Jingning HanChanged Paths :
Modify /vp9/common/vp9_blockd.h
Modify /vp9/common/vp9_onyxc_int.h
Modify /vp9/decoder/vp9_decodeframe.c
Modify /vp9/encoder/vp9_bitstream.c
Modify /vp9/encoder/vp9_encodeframe.c
Modify /vp9/encoder/vp9_encodemb.c
Modify /vp9/encoder/vp9_pickmode.c
Modify /vp9/encoder/vp9_rdopt.c
Take out repeated block width/height lookup functionsThe functions b_width_log2 and b_height_log2 only do direct
table fetch. This commit unifies such use cases by using the
table directly and removes these functions.Change-Id : I3103fc6ba959c1182886a2799d21b8b77c8a7b6b
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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 ? -
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 !